{
  "schemaVersion": 7,
  "engineSetupsReviewedOn": "2026-10-15",
  "boatSourceGeneratedAt": "2026-04-19T19:39:15.865001Z",
  "engineSourceCreatedAt": "2026-04-19T00:00:00Z",
  "experimental": true,
  "catalogueScope": {
    "excludedBrandsByBoatType": {
      "sailing-yacht": [
        "Grand",
        "Grand Soleil",
        "Salona"
      ],
      "catamaran": [
        "Aventura",
        "Excess",
        "Leopard"
      ]
    },
    "requiresDocumentedEngineSetup": true,
    "excludedModelIds": [
      105531,
      126462,
      471261,
      506452
    ],
    "excludedEngineFamilies": [
      {
        "manufacturer": "Volvo Penta",
        "model": "MD2020"
      },
      {
        "manufacturer": "Volvo Penta",
        "model": "MD2030"
      }
    ],
    "allowsReviewedEngineFamilyReferences": true,
    "ageExclusionScope": "The nine previously unresolved fuel-reference models only. Remove the four pre-2011 designs from this group; retain the five later/current designs. This is not a production-year audit or age exclusion of every other catalogue model.",
    "note": "Calculator scope is curated separately from the original catalogue and research archive. Only models with a documented engine configuration are included. Models with any documented Volvo Penta MD2020 or MD2030 family option, including MD2030D, are excluded even if an alternative engine is documented. Other models without a matching fuel curve remain available. Four pre-2011 designs from the previous unresolved group are retired. Grand is the source catalogue label for Grand Soleil."
  },
  "defaults": {
    "typicalCruisingRpm": 2200,
    "rpmStep": 100,
    "motoringHours": 5
  },
  "methodology": {
    "preferredReferences": [
      "manufacturer_numeric_load_table",
      "manufacturer_graph_digitized"
    ],
    "interpolation": "piecewise_linear_between_rpm_points",
    "graphExtrapolation": "none; slider is bounded to extracted source trace",
    "matching": "Explicit reviewed model or representative-base-engine bindings; not equal-horsepower matching or automatic suffix stripping",
    "digitizationUncertainty": "Approximate graph-reading allowance per engine; not installed-boat variability or a statistical confidence bound",
    "fallbackEstimates": {
      "default_curve_method": "estimated_from_rated_power_and_propeller_load_law",
      "explanation": "Where tabular manufacturer fuel curves were not available as machine-readable data, RPM consumption points were generated from rated power using BSFC and a cubic propeller load relationship. Use confidence/source fields before treating a point as exact.",
      "default_propeller_load_exponent": 3,
      "default_bsfc_g_per_kwh": 285,
      "notes": [
        "Marine sailboat auxiliary diesels rarely operate at full rated power in normal cruising.",
        "These curves are intended for planning, UI estimation and comparisons, not invoice-grade fuel accounting.",
        "If your API later exposes a boat-specific fuelConsumption value or exact engine model/serial data, that should override generic model curves."
      ]
    }
  },
  "notes": [
    "Boat brand/model availability comes from the NauSYS Croatia sail and catamaran market export shared for this page, narrowed to the calculator's selected brands.",
    "Cabin counts and owner-layout labels are combined into one model entry; original catalogue IDs and names are retained for traceability. Distinct named generations and trim/design variants remain separate.",
    "The supplied boat export has empty engine-variant arrays. Engine identification comes from separately cited model specifications and documented vessels. Models without documented engine configurations are excluded from the public catalogue; their research remains archived.",
    "Original engine curves come from the ABA VELA engine consumption reference shared for this page; additional planning references cite separately reviewed manufacturer documents.",
    "Published engine configurations are matched to explicit boat model IDs using cited specifications or documented vessel examples; they do not identify an individual boat's installation.",
    "Standard is the lowest-power selector group; higher-power choices are Upgraded. Equal-power versions remain distinct Standard choices. UI labels do not replace source-specific factory specifications. Electric options remain separate.",
    "Fuel references distinguish digitized manufacturer fuel graphs, manufacturer numeric load tables and planning estimates from rated engine power or a published rated-fuel endpoint; none measures fuel use for the selected boat.",
    "Identifying an engine does not establish a consumption curve. Exact names match directly; individually reviewed base-engine-family references may also be used under the user's simplified matching policy. Reported engine labels, reference variants and family-estimate disclosures remain separate; suffixes are not stripped automatically.",
    "Digitized manufacturer graphs replace generic estimates only through explicit reviewed bindings. Graph-reading precision, source edition and load exponent are disclosed. No graph is extrapolated beyond its sampled RPM range. The original supplied dataset remains archived separately, unchanged.",
    "Remaining planning references use assumed cubic load with BSFC/density or an assumed cubic shape anchored to published rated fuel consumption. A rated-fuel endpoint does not establish intermediate fuel values.",
    "Monohulls assume one running engine; catamarans assume both engines running at the same RPM. Totals multiply the selected engine curve by that fixed count; generators are excluded."
  ],
  "stats": {
    "brands": 11,
    "models": 238,
    "sourceModelEntries": 385,
    "sourceModelYearEntries": 866,
    "variants": 696,
    "exactEngineVariantNodes": 0,
    "referenceEngines": 77,
    "originalReferenceEngines": 18,
    "additionalReferenceEngines": 59,
    "modelsWithEngineSetups": 238,
    "modelsWithConsumptionCurves": 238,
    "modelsResearched": 238,
    "identifiedEngineModels": 75,
    "engineCatalogueEntries": 85,
    "researchSources": 371
  },
  "research": {
    "reviewedOn": "2026-10-15",
    "reports": [
      "brand-research-bavaria.json",
      "brand-research-beneteau-grand.json",
      "brand-research-catamarans.json",
      "brand-research-dufour-elan.json",
      "brand-research-hanse-mixed.json",
      "brand-research-jeanneau-salona.json"
    ],
    "sources": [
      {
        "id": "bavaria-fixed-c46-dealer-57",
        "title": "Sydney Marine Brokerage: Bavaria C46 new dealer reference NSB32",
        "url": "https://www.sydneymarinebrokerage.com/listing/bavaria-c46-1/",
        "kind": "dealer-catalogue-specification",
        "locator": "Boat Listing Details and Engine 1 tables",
        "evidence": "The dealer's 2026 offered C46 configuration names one Yanmar 4JH57, 57 hp, with saildrive. It is a catalogue reference, not a tested installation. Original HTML was directly fetched and read."
      },
      {
        "id": "bavaria-fixed-c46-builder-standard",
        "title": "BAVARIA C46 builder price list 02-2024: standard propulsion",
        "url": "https://www.bavaria-yachts.ru/02-2024/Pricelist_C46_02-2024_231212_EN_fin.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 6, PROPULSION & STEERING SYSTEM",
        "evidence": "Builder lists 57 hp saildrive diesel as standard, with 80 hp optional. Exact engine code is supplied by the separate dealer reference, not this builder table."
      },
      {
        "id": "bavaria-research-30-2006",
        "title": "De Valk: 2006 Bavaria 30 Cruiser, reference 351983",
        "url": "https://www.devalk.nl/en/yachtbrokerage/351983/BAVARIA-30-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Specifications / Machinery; Year built",
        "evidence": "A 2006 vessel has one Volvo Penta D1-20 B, installed in 2006."
      },
      {
        "id": "bavaria-research-31-2008",
        "title": "Mola: Bavaria 31 Cruiser first launched 2008",
        "url": "https://www.yachthandel-mola.de/Gebrauchtyacht.php?ID=698",
        "kind": "documented-vessel-example",
        "locator": "Technische Daten / Motor; Erstwasserung",
        "evidence": "The 2008 vessel specifies Volvo Penta D1-20."
      },
      {
        "id": "bavaria-research-33-manual",
        "title": "Bavaria 33 Cruiser owners and skippers manual, club-hosted original",
        "url": "https://www.bavariayacht.org/downloads/manual/Bavaria%2033%20Cruiser%202006.pdf",
        "kind": "manufacturer-manual",
        "locator": "Printed page 11, section 1.1.3 Motorization",
        "evidence": "The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date."
      },
      {
        "id": "bavaria-research-34-2008-20",
        "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 203653",
        "url": "https://www.devalk.nl/en/yachtbrokerage/203653/BAVARIA-34-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Specifications / General and Machinery",
        "evidence": "The J&J-designed 2008 boat has one Volvo Penta D1-20B."
      },
      {
        "id": "bavaria-research-34-2008-30",
        "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 806177",
        "url": "https://www.devalk.nl/en/yachtbrokerage/806177/BAVARIA-34-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Machinery / Type and Year installed",
        "evidence": "Another 2008 Bavaria 34 Cruiser has one Volvo Penta D1-30B, installed in 2008."
      },
      {
        "id": "bavaria-research-36-2012-30",
        "title": "YachtBroker: 2012 Bavaria 36 Cruiser, two-cabin boat",
        "url": "https://yachtbroker-network.com/boats-for-sale/bavaria-36-cruiser-2-cabin",
        "kind": "documented-vessel-example",
        "locator": "Boat details / Year, Engine; Engine year",
        "evidence": "The 2012 Farr-designed two-cabin vessel lists Volvo Penta D1-30F."
      },
      {
        "id": "bavaria-research-36-2012-20",
        "title": "Ancasta: 2012 Bavaria 36 Cruiser Aquila, reference 50676",
        "url": "https://ancasta.com/boats-for-sale/used/sail/bavaria/36-cruiser/50676/",
        "kind": "documented-vessel-example",
        "locator": "Build; Machinery search-indexed passage",
        "evidence": "Aquila is a 2012 Farr-designed Avantgarde example with a single Volvo Penta D1-20 diesel."
      },
      {
        "id": "bavaria-research-37-2008-30",
        "title": "De Valk: Bavaria 37 Cruiser Fun4Five, reference 812006",
        "url": "https://www.devalk.nl/en/yachtbrokerage/812006/BAVARIA-37-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "General / Year built and Launched; Machinery",
        "evidence": "This J&J vessel was built in 2007, launched March 2008, and has one Volvo Penta D1-30B installed in 2008."
      },
      {
        "id": "bavaria-research-37-2008-40",
        "title": "White Whale: 2008 Bavaria 37 Cruiser in Dalmatia",
        "url": "https://www.uwjachtmakelaar.nl/zeiljachten/4dbc552f-2a1e-4bb4-ba6b-90a7cd0dd367/bavaria-37-cruiser-20/",
        "kind": "documented-vessel-example",
        "locator": "Bouwjaar; Motor",
        "evidence": "A 2008 three-cabin example specifies Volvo Penta D2-40."
      },
      {
        "id": "bavaria-research-38c-2008",
        "title": "De Valk: 2008 Bavaria 38 Cruiser, reference 202986",
        "url": "https://www.devalk.nl/en/yachtbrokerage/202986/BAVARIA-38-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Year built; Machinery / Type and Year installed",
        "evidence": "This two-cabin 2008 Bavaria 38 Cruiser has one Volvo Penta D1-30."
      },
      {
        "id": "bavaria-research-39-2007-30",
        "title": "De Valk: 2007 Bavaria 39 Cruiser, reference 351628",
        "url": "https://www.devalk.nl/nl/jachtmakelaardij/351628/BAVARIA-39-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Bouwjaar; Motor(en)",
        "evidence": "The 2007 boat lists one Volvo Penta D1-30B."
      },
      {
        "id": "bavaria-research-39-2007-40",
        "title": "Network Yacht Brokers: 2007 Bavaria 39 Cruiser, reference 22F10156884",
        "url": "https://www.networkyachtbrokers.com/boats_for_sale/Bavaria_39_Cruiser-22F10156884.html/",
        "kind": "documented-vessel-example",
        "locator": "Year; Engine Make; Mechanical",
        "evidence": "The original broker specifies Volvo Penta D2-40B on this 2007 example."
      },
      {
        "id": "bavaria-research-40-2009",
        "title": "De Valk: 2009 Bavaria 40 Cruiser, reference 202170",
        "url": "https://www.devalk.nl/en/yachtbrokerage/202170/BAVARIA-40-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "General / Designer and Year built; Machinery",
        "evidence": "This J&J 2009 Bavaria 40 Cruiser has one Volvo Penta D2-40."
      },
      {
        "id": "bavaria-research-41-2003",
        "title": "Agence Yachting Mediterranee: 2003 Bavaria 41",
        "url": "https://www.agence-yachting-med.fr/acheter-mon-bateau/bavaria-yachts-41-797",
        "kind": "documented-vessel-example",
        "locator": "Model, year and engine specification block",
        "evidence": "The original broker lists a 2003 Bavaria 41 with Volvo Penta D2-55."
      },
      {
        "id": "bavaria-research-42-2006-40",
        "title": "De Valk: 2006 Bavaria 42 Cruiser, reference 200853",
        "url": "https://www.devalk.nl/en/yachtbrokerage/200853/BAVARIA-42-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Year built; Machinery",
        "evidence": "The J&J 2006 boat, delivered March 2007, has one Volvo Penta D2-40."
      },
      {
        "id": "bavaria-research-42-2006-55",
        "title": "Boatshed Portsmouth: 2006 Bavaria 42 Cruiser, reference 351444",
        "url": "https://www.boatshed.com/bavaria_42_cruiser-boat-351444.html",
        "kind": "documented-vessel-example",
        "locator": "Year; Mechanical / Engine make and model",
        "evidence": "This 2006 example has one Volvo Penta D2-55."
      },
      {
        "id": "bavaria-research-44-2003",
        "title": "De Valk: 2003 Bavaria 44 three-cabin Del Mar, reference 90658",
        "url": "https://www.devalk.nl/en/yachtbrokerage/90658/BAVARIA-44---3.html",
        "kind": "documented-vessel-example",
        "locator": "General / Year built; Machinery",
        "evidence": "The 2003 boat lists one Volvo Penta D 2-55, installed in 2003."
      },
      {
        "id": "bavaria-research-46-2007-55",
        "title": "Nord Est Yacht: Bavaria 46 Cruiser, 2007, listing 667",
        "url": "https://www.nordestyacht.it/bavaria-46-cruiser/667",
        "kind": "documented-vessel-example",
        "locator": "Scheda tecnica / Modello motori",
        "evidence": "The 2007 vessel lists one Volvo Penta D2-55."
      },
      {
        "id": "bavaria-research-46-2007-75",
        "title": "Diamond Yachts: J&J Bavaria 46 Cruiser, 2007",
        "url": "https://www.diamond-yachts.de/gebrauchtboote/details/bavaria-46-cruiser.html",
        "kind": "documented-vessel-example",
        "locator": "Rahmendaten; Maschine; Key Facts",
        "evidence": "The original broker explicitly identifies a 2007 J&J boat with an engine upgrade to Volvo Penta D2-75."
      },
      {
        "id": "bavaria-research-47-2009",
        "title": "The One Yacht: 2009 Bavaria 47 Cruiser Naboo",
        "url": "https://theoneyacht.com/yacht/bavaria-47-cruiser/",
        "kind": "documented-vessel-example",
        "locator": "Key Specifications; Engine & Equipment",
        "evidence": "Naboo is a 2009 Bavaria 47 Cruiser fitted with Volvo Penta D2-55."
      },
      {
        "id": "bavaria-research-49-2004",
        "title": "Xboat: Bavaria 49, 2004, reference 6118",
        "url": "https://www.xboat.uk/PDFs-6118-BAVARIA_BAVARIA-49",
        "kind": "documented-vessel-example",
        "locator": "Main datas; Engines; Owner's Comments",
        "evidence": "The original broker sheet identifies one Volvo Penta D2-75 on a 2004 boat and describes it as the original engine."
      },
      {
        "id": "bavaria-research-50-2007",
        "title": "De Valk: 2007 Bavaria 50 Cruiser, reference 800153",
        "url": "https://www.devalk.nl/en/yachtbrokerage/800153/BAVARIA-50-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Year built; Machinery / Type",
        "evidence": "The 2007 Bavaria 50 Cruiser has one Volvo Penta D2 75."
      },
      {
        "id": "bavaria-research-51-2010",
        "title": "Boatery: Bavaria 51 Cruiser, 2010 vessel specification",
        "url": "https://boatery.dk/wp-content/uploads/2024/10/boatery_bavaria_51_cruiser.pdf",
        "kind": "documented-vessel-example",
        "locator": "year; Engine; Engine Year",
        "evidence": "The original broker sheet lists a 2010 Bavaria 51 Cruiser with one Volvo Penta D2-75B, engine year 2010."
      },
      {
        "id": "bavaria-research-c38-price",
        "title": "Bavaria C38 manufacturer price list 3/2022, dealer-hosted original",
        "url": "https://bavaria-yachts.ru/Pricelist_SailingYachts_03-2022_EN/Pricelist_C38_03-2022_220412_EN.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1 / Technical Data / Engine standard and option",
        "evidence": "The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE."
      },
      {
        "id": "bavaria-research-c38-ae",
        "title": "Maritima Courtage: Bavaria C38 with November 2022 engine",
        "url": "https://www.maritima-courtage.fr/annonces/bavaria-c38/",
        "kind": "documented-vessel-example",
        "locator": "Moteur",
        "evidence": "The original broker explicitly names Yanmar 3YM30AE, engine date 11/2022. It does not establish a universal factory engine."
      },
      {
        "id": "bavaria-research-c38-style2025",
        "title": "AMS Yachting: 2025 Bavaria C38, Full LOA with Style pack",
        "url": "https://amsyachting.com/bateaux/bavaria-c38-2025-en-version-full-loa/",
        "kind": "documented-vessel-example",
        "locator": "Opening boat description and motorisation",
        "evidence": "This 2025 C38 explicitly includes the Style pack and a Yanmar 3JH40. Style applicability is limited to that described package-equipped boat."
      },
      {
        "id": "bavaria-research-c42-40",
        "title": "Bavaria Yachts Hungary: C42 technical data",
        "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c42/",
        "kind": "authorized-dealer-specification",
        "locator": "Technikai adatok / Motor-tipus",
        "evidence": "The dealer specification names Yanmar 3JH40 at 29.4 kW / 40 hp."
      },
      {
        "id": "bavaria-research-c42-57",
        "title": "Clipper Marine: 2020 Bavaria C42",
        "url": "https://www.clippermarine.co.uk/boats-for-sale~boat-feed-detail~-bavaria-c42~57460",
        "kind": "documented-vessel-example",
        "locator": "Description; Options; Propulsion",
        "evidence": "The 2020 example has one Yanmar 4JH57, explicitly described as an engine upgrade."
      },
      {
        "id": "bavaria-research-c45-brochure",
        "title": "Bavaria C45 manufacturer C-Line brochure, Italian dealer mirror",
        "url": "https://www.bavariayachts.it/index_htm_files/Brochure%20C45%20sito.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 11 / C45 technical data, following printed page 24",
        "evidence": "The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional."
      },
      {
        "id": "bavaria-research-c45-holiday",
        "title": "Columbus Yachting original listing: 2019 Bavaria C45 Holiday",
        "url": "https://ca.boats.com/sailing-boats/2019-bavaria-c45-holiday-10101499/",
        "kind": "documented-vessel-example",
        "locator": "Boat Details; Propulsion; Presented For Sale By",
        "evidence": "Columbus Yachting's own listing identifies the 2019 Holiday vessel with one Yanmar 4JH57."
      },
      {
        "id": "bavaria-research-c45-style",
        "title": "Yacht Broker House: Bavaria C45 Style, 2019",
        "url": "https://www.ybh.gr/yachts/bavaria-c45-style",
        "kind": "documented-vessel-example",
        "locator": "Main Info / Built, Model, Engine Type; Specifications / Engine",
        "evidence": "The broker's own 2019 C45 Style page repeatedly names Yanmar 4JH80. Its separate 56 hp figure is inconsistent and is not used as a model identifier or rating."
      },
      {
        "id": "bavaria-research-c45-style57",
        "title": "Dalmatia Yachting: 2020 Bavaria C45 Style specification",
        "url": "https://www.booking-manager.com/wbm2/bmdoc/4582760557600575_Description_Bavaria_C45_STYLE.pdf",
        "kind": "documented-vessel-example",
        "locator": "Title and equipment list / Yanmar engine",
        "evidence": "The charter vessel specification explicitly labels C45 STYLE, year 2020, and Yanmar 4JH57."
      },
      {
        "id": "bavaria-research-c46-2024",
        "title": "ADS Marine: 2024 Bavaria C46 vessel specification",
        "url": "https://ads-marine.com/en/used-boats/bavaria-c46?f=print_page&type=pdf",
        "kind": "documented-vessel-example",
        "locator": "Vessel identity; PROPULSION",
        "evidence": "The original broker's 2024 C46 sheet lists one Yanmar 4JH80."
      },
      {
        "id": "bavaria-research-c50-dealer",
        "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
        "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/",
        "kind": "authorized-dealer-specification",
        "locator": "C50 HOLIDAY and C50 STYLE variants; Technikai adatok",
        "evidence": "The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed."
      },
      {
        "id": "bavaria-research-c57-dealer",
        "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
        "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/",
        "kind": "authorized-dealer-specification",
        "locator": "C57 HOLIDAY and C57 STYLE variants; Technikai adatok",
        "evidence": "The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110."
      },
      {
        "id": "bavaria-research-c57-brochure",
        "title": "Bavaria C-Line manufacturer brochure, 2020 dealer-hosted original",
        "url": "https://efelnautic.com/wp-content/uploads/plovila/bavaria/C-Line/brochure/Brochure_C-Line_german-english_200220.pdf",
        "kind": "manufacturer-specification",
        "locator": "Search-indexed printed page 44 / C57 FEATURES table",
        "evidence": "The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed."
      },
      {
        "id": "bavaria-research-cr32-2012",
        "title": "Bavaria Cruiser 32 manufacturer standard specification, February 2012",
        "url": "https://www.staynautica.com/wp-content/uploads/2012/09/Bavaria-32-Cruiser-Equipo-standar-2012.pdf",
        "kind": "manufacturer-specification",
        "locator": "Technical Data / Motorizacion; STAND 02/2012",
        "evidence": "The Farr Cruiser 32 specification names Volvo D1-20."
      },
      {
        "id": "bavaria-research-cr-line-early",
        "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
        "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
        "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
      },
      {
        "id": "bavaria-research-cr-line-later",
        "title": "Bavaria Cruiser Line manufacturer brochure: 34, 37 and 46",
        "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sb-cruiserline-de-en.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 18 overview and page 16 Cruiser 46 data",
        "evidence": "Separate model columns identify Cruiser 34 Volvo D1-20; Cruiser 37 D1-30; Cruiser 46 D2-50."
      },
      {
        "id": "bavaria-research-cr34-style",
        "title": "Bavaria Yachts Hungary: Cruiser 34 Style reference specification",
        "url": "https://bavaria.hu/bavaria-yacht/referenciak/bavaria-cruiser-34-style/",
        "kind": "authorized-dealer-specification",
        "locator": "Page title; Technikai adatok / Motor-tipus",
        "evidence": "The page specifically labelled Cruiser 34 Style names Volvo Penta D1-20."
      },
      {
        "id": "bavaria-research-cr36-2011",
        "title": "De Valk: Farr Bavaria 36 Cruiser, 2011, reference 251277",
        "url": "https://www.devalk.nl/en/yachtbrokerage/251277/BAVARIA-36-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Year built; Broker comments; Machinery",
        "evidence": "The Farr/BMW 2011 boat has one Volvo Penta D1-30F."
      },
      {
        "id": "bavaria-research-cr36-2011-20",
        "title": "Beekhuis Yachtbrokers: 2011 Cruiser 36, reference 231009",
        "url": "https://www.beekhuisyachtbrokers.com/en/sold-yachts/bavaria-cruiser-36-2-cabin/",
        "kind": "documented-vessel-example",
        "locator": "Year built; Engine specification",
        "evidence": "The Farr-designed 2011 owner's-layout boat explicitly names Volvo Penta D1-20."
      },
      {
        "id": "bavaria-research-cr37-2025",
        "title": "Bavaria Cruiser 37 technical sheet, 2025",
        "url": "https://www.bavariayachts.it/download/37-cruiser-scheda-tenica-2025.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 1 / Motore standard",
        "evidence": "The 2025 Farr Cruiser 37 sheet explicitly specifies Volvo D1-30 as standard."
      },
      {
        "id": "bavaria-research-cr37-style",
        "title": "Diamond Yachts: 2023 Bavaria Cruiser 37 Style",
        "url": "https://www.diamond-yachts.de/gebrauchtboote/details/bavaria-cruiser-37-style.html",
        "kind": "documented-vessel-example",
        "locator": "Rahmendaten; Technische Ausrustung",
        "evidence": "The original broker's 2023 Style vessel has Volvo Penta D1-30."
      },
      {
        "id": "bavaria-research-cr40-manual",
        "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
        "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf",
        "kind": "manufacturer-manual",
        "locator": "Section 1.1.3 Motorisation",
        "evidence": "The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option."
      },
      {
        "id": "bavaria-research-cr40s-2012",
        "title": "Bavaria Cruiser 40 S manufacturer standard specification, February 2012",
        "url": "https://www.staynautica.com/wp-content/uploads/2012/06/Bavaria-40-Cruiser-S-Equipo-standar-2012.pdf",
        "kind": "manufacturer-specification",
        "locator": "Technical Data / Motorizacion; STAND 02/2012",
        "evidence": "The expressly named Cruiser 40 S specification names Volvo D1-30."
      },
      {
        "id": "bavaria-research-cr41-2018",
        "title": "De Valk: Bavaria Cruiser 41, 2018, reference 813650",
        "url": "https://www.devalk.nl/en/yachtbrokerage/813650/BAVARIA-CRUISER-41.html",
        "kind": "documented-vessel-example",
        "locator": "Year built; Machinery",
        "evidence": "The 2018 boat has one Volvo Penta D2-40 installed in 2018."
      },
      {
        "id": "bavaria-research-cr41s",
        "title": "Busfield Marine Brokers: Bavaria Cruiser 41 S",
        "url": "https://www.busfieldmarine.co.nz/shop/Bavaria%2BSail/Bavaria%2BCruiser%2B41%2BS.html",
        "kind": "authorized-dealer-specification",
        "locator": "Cruiser 41 S description and Specifications / Engine",
        "evidence": "The Bavaria dealer's explicitly labelled 41 S model page names Volvo Penta D2-40."
      },
      {
        "id": "bavaria-research-cr45-2012",
        "title": "Almissani original listing: 2012 Bavaria Cruiser 45",
        "url": "https://www.boatshop24.com/us/boat/2012-bavaria-cruiser-45-9728443/",
        "kind": "documented-vessel-example",
        "locator": "Year; Engine; seller Almissani",
        "evidence": "The original selling broker lists a 2012 Cruiser 45 with Volvo Penta D2-55."
      },
      {
        "id": "bavaria-research-cr46-2015",
        "title": "Clipper Marine: 2015 Bavaria Cruiser 46 Eastern Trilogy",
        "url": "https://www.clippermarine.co.uk/boats-for-sale~boat-feed-detail~-bavaria-cruiser-46~58921",
        "kind": "documented-vessel-example",
        "locator": "Description; Other options; Propulsion",
        "evidence": "The 2015 boat explicitly has a Volvo Penta D2-75 engine upgrade."
      },
      {
        "id": "bavaria-research-cr46-style",
        "title": "VELADOC original listing: Bavaria Cruiser 46 Style",
        "url": "https://au.boats.com/sailing-boats/2017-bavaria-cruiser-46-style-10020572/",
        "kind": "documented-vessel-example",
        "locator": "Boat Details / Model and Year; Propulsion / Engine Model",
        "evidence": "VELADOC's original Style listing explicitly specifies Volvo Penta D2-75. Listing year is 2017 while description says 2018; neither establishes the dataset's 2020 vessel."
      },
      {
        "id": "bavaria-research-cr51",
        "title": "Sail Yachting: Bavaria Cruiser 51 standard specification",
        "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/_____bavaria_cruiser_51-1.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "Varie / Motore",
        "evidence": "The dealer-hosted Cruiser 51 specification explicitly names Volvo Penta D2-75."
      },
      {
        "id": "bavaria-research-cr55-2010",
        "title": "Fontnautic: 2010 Bavaria Cruiser 55 in Barcelona",
        "url": "https://fontnautic.com/bavaria-cruiser-55/",
        "kind": "documented-vessel-example",
        "locator": "Datos principales / Motores; La embarcacion",
        "evidence": "The broker's 2010 vessel has one Volvo Penta D3-110."
      },
      {
        "id": "bavaria-research-yanmar-ym-versions",
        "title": "Yanmar SD25 operation manual, June 2019: applicable engine versions",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0032_2019.06.pdf",
        "kind": "manufacturer-manual",
        "locator": "Printed page 37 / Specifications / Applicable engine model; search-indexed table",
        "evidence": "The engine-compatibility table separately names 3YM30 at 21.3 kW and 3600 rpm, and 3YM30AE at 21.3 kW and 3200 rpm. Equal power cannot identify the version; SD25 itself is a drive, not an engine."
      },
      {
        "id": "bavaria-research-yanmar-3ym30ae-spec",
        "title": "Yanmar Marine International: 3YM30AE specifications",
        "url": "https://www.yanmar.com/marine/product/engines/3ym30ae/",
        "kind": "manufacturer-specification",
        "locator": "Specifications / Rated output and Rated Speed",
        "evidence": "Yanmar explicitly rates 3YM30AE at 21.3 kW and 3200 rpm. This engine specification does not identify any C38 installation by itself."
      },
      {
        "id": "bengrand-ben50-yachts-france",
        "title": "Yachts France: 2005 Beneteau 50, Beaulieu-sur-Mer, seller listing",
        "url": "https://de.boats.com/segelboote/2005-beneteau-50-10114530/",
        "kind": "documented-vessel-example",
        "locator": "Bootsangaben and Motorisierung; seller YACHTS FRANCE; listing 10114530",
        "evidence": "The seller identifies a 2005 Beneteau 50 and a Yanmar 4JH3-HTE, with engine year 2005. This is one vessel, not a factory-wide specification."
      },
      {
        "id": "bengrand-first27-beneteau-spec",
        "title": "Beneteau First 27 / First 27 SE general equipment list, North America",
        "url": "https://signature-yachts.com/wp-content/uploads/2023/03/First-27SE-specs.pdf",
        "kind": "manufacturer-specification",
        "locator": "ENGINE; separate FIRST 27 VERSION and FIRST 27 SE VERSION headings",
        "evidence": "The First 27 version explicitly receives a Yanmar 2YM15 inboard. The SE version instead has provision for an optional outboard; the two versions must not be conflated."
      },
      {
        "id": "bengrand-first35-layline-2011",
        "title": "Layline Yacht Broker: First 35, 2011",
        "url": "https://www.layline.com.br/seminovos/Veleiro/1635/",
        "kind": "documented-vessel-example",
        "locator": "FIRST 35; 2011 - 35 pes; Motorizacao",
        "evidence": "The broker specifies a 2011 Yanmar 3YM30, 29 hp, in this 2011 First 35. The listing also mentions a later keel update."
      },
      {
        "id": "bengrand-first36-beneteau-spec",
        "title": "Beneteau First 36 specification, Navar-hosted manufacturer document",
        "url": "https://www.navaryacht.com/wp-content/uploads/2023/11/36.pdf",
        "kind": "manufacturer-specification",
        "locator": "PROPULSION",
        "evidence": "The document calls the engine Yanmar 3YM30, 21 kW / 29 hp, and separately names the SD25 saildrive. It does not print the AE engine suffix in that passage."
      },
      {
        "id": "bengrand-beneteau-yanmar-brochure",
        "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
        "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
        "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
      },
      {
        "id": "bengrand-first44-beneteau",
        "title": "Beneteau: Financez votre First 44",
        "url": "https://www.beneteau.com/fr/financez-votre-first-44",
        "kind": "manufacturer-specification",
        "locator": "Motorisation",
        "evidence": "Beneteau explicitly identifies the offered First 44 configuration as Yanmar 4JH57 CR SD, 42 kW / 57 hp. CR and SD describe the fuel system and drive, not another engine model."
      },
      {
        "id": "bengrand-first53-zuma-2020",
        "title": "Flagship Yacht Sales: ZUMA, 2020 Beneteau First 53, seller listing",
        "url": "https://www.boattrader.com/boat/2020-beneteau-first-53-9804165/",
        "kind": "documented-vessel-example",
        "locator": "Boat Details; Propulsion",
        "evidence": "The original selling broker lists ZUMA as a 2020 First 53 with one Yanmar 4JH110, 110 hp, engine year 2020."
      },
      {
        "id": "bengrand-oc301-2019-price",
        "title": "Beneteau Oceanis 30.1 retail list dated 1 October 2019",
        "url": "https://www.yachtingstargroup.com/wp-content/uploads/2020/04/Listino-30.1.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, MOTORIZZAZIONE; codes 1Y4 and 1YB",
        "evidence": "The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways."
      },
      {
        "id": "bengrand-oc301-electric-2024",
        "title": "Risbjerg: Oceanis 30.1 price list 2024",
        "url": "https://www.risbjerg.dk/wp-content/uploads/2019/01/Oceanis-30.1.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "Page 1, PROPULSION; codes 1YB and 1T41",
        "evidence": "The dealer lists the 3YM20 diesel and a Torqeedo Cruise 6.0 FP TorqLink pod option. The electric version is approved for inland waters only."
      },
      {
        "id": "bengrand-oc31-devalk-2017",
        "title": "De Valk: Beneteau Oceanis 31, 2017, reference 204034",
        "url": "https://www.devalk.nl/en/yachtbrokerage/204034/BENETEAU-OCEANIS-31.html",
        "kind": "documented-vessel-example",
        "locator": "Built; Machinery",
        "evidence": "The 2017 vessel has one Yanmar 3YM20, 21 hp, installed in 2017, with shaft drive."
      },
      {
        "id": "bengrand-oc34-2013-price",
        "title": "Oceanis 34 Limited Edition 2013, Bohus Yachts specification/price sheet",
        "url": "https://www.bohusyachts.se/wp-content/uploads/2018/05/Oceanis-34-2013-B-SWE-.xlsx.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "OCEANIS 34 Limited Edition 2013; motorization line",
        "evidence": "The dealer sheet explicitly names Yanmar 3YM30, 21 kW / 29 hp, for the 2013 Limited Edition Oceanis 34."
      },
      {
        "id": "bengrand-oc341-2025-price",
        "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
        "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "Page 1, PROPULSION; 1YB, 1ZF0 and 1T41U",
        "evidence": "The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia."
      },
      {
        "id": "bengrand-oc35-nyb-2016",
        "title": "Network Yacht Brokers Dublin: 2016 Beneteau Oceanis 35, reference 30292",
        "url": "https://www.networkyachtbrokers.com/boats_for_sale/Beneteau_Oceanis_35-30292.html/",
        "kind": "documented-vessel-example",
        "locator": "Year; Engine Make; Horsepower",
        "evidence": "The original broker's 2016 three-cabin Oceanis 35 has a Yanmar 3YM 30AE, 29 hp. Spacing is normalized to 3YM30AE without dropping AE."
      },
      {
        "id": "bengrand-oc35-antipode-2015",
        "title": "Antipode: 2015 Oceanis 35, Douarnenez, seller-origin listing",
        "url": "https://www.topbarcos.com/barco/2015-beneteau-oceanis-35-10327725/",
        "kind": "documented-vessel-example",
        "locator": "Seller ANTIPODE; Motor; seller description",
        "evidence": "Antipode's description of this first-owner 2015 Oceanis 35 explicitly identifies a Yanmar 3YM20, 21 hp. This differs from the documented 2016 3YM30AE boat."
      },
      {
        "id": "bengrand-oc351-nautivela-2018",
        "title": "Nautivela: Beneteau Oceanis 35.1 2018, vessel sheet 39064",
        "url": "https://nautivela.net/wp-content/uploads/2025/08/fitxa-39064.pdf",
        "kind": "documented-vessel-example",
        "locator": "MOTORIZACION: NUMERO DE MOTORES, MARCA, MODELO, ANO DEL MOTOR",
        "evidence": "The 2018 vessel sheet lists one Yanmar 3YM30AE, with engine year 2018."
      },
      {
        "id": "bengrand-oc371-flagstaff-2024",
        "title": "Flagstaff Marine: Beneteau Oceanis 37.1, 2024 specification",
        "url": "https://flagstaffmarine.com.au/wp-content/themes/marine/pdf-converter/specifications.php?boat_id=316773",
        "kind": "documented-vessel-example",
        "locator": "General: Launch Year; Engine / Machinery",
        "evidence": "The dealer's 2024 Oceanis 37.1 specification identifies Yanmar and the 3JH40 diesel, 29 kW / 40 hp."
      },
      {
        "id": "bengrand-oc371-2024-price",
        "title": "Risbjerg: Oceanis 37.1 price list 2024",
        "url": "https://www.risbjerg.dk/wp-content/uploads/2023/08/Oceanis-37.1.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "Page 1, PROPULSION; codes 1ZJ0 and 1T51",
        "evidence": "The list names the 3JH40 diesel. A separate inland-only Torqeedo electric option is described by 48 V FP pod and 12 kW, without an exact commercial engine model in the reviewed passage."
      },
      {
        "id": "bengrand-oc38-devalk-2015",
        "title": "De Valk: 2015 Beneteau Oceanis 38 Cruiser, reference 810669",
        "url": "https://www.devalk.nl/en/yachtbrokerage/810669/BENETEAU-OCEANIS-38-CRUISER.html",
        "kind": "documented-vessel-example",
        "locator": "Built; Machinery",
        "evidence": "The 2015 lifting-keel, three-cabin Oceanis 38 Cruiser has one Yanmar 3YM30AE, 29 hp, installed in 2015."
      },
      {
        "id": "bengrand-oc381-2021-price",
        "title": "Beneteau Oceanis 38.1 retail list dated 1 January 2021",
        "url": "https://www.yachtingstargroup.com/wp-content/uploads/2021/04/Gennaio-2021-38.1.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, MOTORIZZAZIONE; codes 1ZF1 and 1ZJ1",
        "evidence": "The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive."
      },
      {
        "id": "bengrand-oc41-flagstaff-2013",
        "title": "Flagstaff Marine: Beneteau Oceanis 41, 2013 specification",
        "url": "https://flagstaffmarine.com.au/wp-content/themes/marine/pdf-converter/specifications.php?boat_id=323597",
        "kind": "documented-vessel-example",
        "locator": "General: Launch Year and HIN; Engine / Machinery",
        "evidence": "The 2013 Oceanis 41, HIN FRSPBDC159F313, is explicitly fitted with a Yanmar 3JH5E, 40 hp, saildrive installation."
      },
      {
        "id": "bengrand-oc411-risbjerg-price",
        "title": "Risbjerg: Beneteau Oceanis 41.1 retail specification/price list",
        "url": "https://www.risbjerg.dk/wp-content/uploads/2015/11/OC-41.1.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "VERSION / Motor; code 1XD1",
        "evidence": "The Oceanis 41.1 list names Yanmar 4JH45 CR SD, 33 kW / 45 hp. This is not an Oceanis 41 specification."
      },
      {
        "id": "bengrand-oc43-grandyachts-2009",
        "title": "Grand Yachts: Prime Time, 2009 Beneteau Oceanis 43",
        "url": "https://www.grandyachts.com/our-inventory/used-boats-for-sale/?boat_id=7624941",
        "kind": "documented-vessel-example",
        "locator": "Year; Engine 1: Make & Model, Year and Power",
        "evidence": "Prime Time is listed as a 2009 Oceanis 43 with a 2009 Yanmar 4JH4E, 54 hp."
      },
      {
        "id": "bengrand-oc45-devalk-2013",
        "title": "De Valk: 2013 Beneteau Oceanis 45, reference 809852",
        "url": "https://www.devalk.nl/en/yachtbrokerage/809852/BENETEAU-OCEANIS-45.html",
        "kind": "documented-vessel-example",
        "locator": "Built; Machinery",
        "evidence": "This 2013 three-cabin Oceanis 45 has one Yanmar 4JH5E, 54 hp, with saildrive."
      },
      {
        "id": "bengrand-oc46-yoti-2011",
        "title": "YOTI: Perla Alba, 2011 Beneteau Oceanis 46",
        "url": "https://www.yoti.com.au/?bdbrochure=beneteau-oceanis-46-perla-alba-sold",
        "kind": "documented-vessel-example",
        "locator": "Specifications: Model, Year and Engine Make",
        "evidence": "The original broker's specification identifies Perla Alba as a 2011 Oceanis 46 and explicitly names Yanmar 4JH4-TE."
      },
      {
        "id": "bengrand-oc47-nautivela-price",
        "title": "Beneteau Oceanis 47 retail list, Nautivela copy",
        "url": "https://nautivela.net/wp-content/uploads/2025/07/OCEANIS_47.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, MOTORIZACION; codes 1XA1 and 1XB1",
        "evidence": "The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp."
      },
      {
        "id": "bengrand-oc48-devalk-2015",
        "title": "De Valk: Beneteau Oceanis 48, reference 813081",
        "url": "https://www.devalk.nl/en/yachtbrokerage/813081/BENETEAU-OCEANIS-48.html",
        "kind": "documented-vessel-example",
        "locator": "Built; broker comments; Machinery",
        "evidence": "The broker lists a 2015-built, 2016-model-year Oceanis 48 with one Yanmar 4JH4-TE, 75 hp."
      },
      {
        "id": "bengrand-oc50family-castaner-2011",
        "title": "I. Castaner Yachts: Oceanis 50 Family MACARMI, reference 15347",
        "url": "https://castaner-yachts.com/wp-content/uploads/2026/02/ICY-REF-15347-Beneteau-Oceanis-50-Family.pdf",
        "kind": "documented-vessel-example",
        "locator": "PDF page 1: Model and Year; page 2: ENGINES",
        "evidence": "MACARMI is expressly a 2011 Oceanis 50 Family G5. Its engine is printed as Yanmar 4JH4TCE SD, 75 hp; SD describes the drive."
      },
      {
        "id": "bengrand-oc511-2025-price",
        "title": "Beneteau Oceanis 51.1 price list B2025, Kiriacoulis copy",
        "url": "https://www.kiriacoulis.com/sales/BeneteauOceanis51.1_price.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, PROPULSION; codes 1XB1 and 1XC0",
        "evidence": "The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp."
      },
      {
        "id": "bengrand-oc52-guasch-2026",
        "title": "Hermanos Guasch: Beneteau Oceanis 52, new 2026",
        "url": "https://hermanosguasch.com/es/ofertas/beneteau-oceanis-52-new-2026",
        "kind": "authorized-dealer-specification",
        "locator": "Search-indexed Modelo motor and model introduction/delivery description; page returned 404 on second-pass recheck",
        "evidence": "The indexed dealer offer explicitly names Yanmar 4JH110 CR for the new 2026 Oceanis 52. The page returned 404 on recheck; the separate Sport Nautic stock listing corroborates the exact published designation."
      },
      {
        "id": "bengrand-oc52-sportnautic-2026",
        "title": "Sport Nautic: Oceanis 52 STOCK, 2026",
        "url": "https://sportnautic.com/embarcacion/oceanis-52-stock/",
        "kind": "authorized-dealer-specification",
        "locator": "Ano 2026; Motor / Marca and Modelo; Motorizacion y sistemas",
        "evidence": "The dealer's own 2026 stock page explicitly prints Yanmar 4JH110 CR in the engine model field and describes the 110 hp saildrive installation. Its inconsistent cabin counts are not used as evidence for any specific layout."
      },
      {
        "id": "bengrand-yanmar-4jh110-identity",
        "title": "Yanmar Marine International: 4JH110 official specification",
        "url": "https://www.yanmar.com/marine/product/engines/4jh110/",
        "kind": "manufacturer-specification",
        "locator": "Page/model heading 4JH110; Specifications / Combustion system; JH-CR operation-manual model list",
        "evidence": "Yanmar names the engine model 4JH110 and separately describes its Bosch common-rail combustion system. This supports treating CR as a technology annotation rather than an additional engine-model suffix; it does not itself prove installation in any boat."
      },
      {
        "id": "bengrand-oc54-abayachting-2023",
        "title": "Abayachting: Beneteau Oceanis 54, 2023 vessel specification",
        "url": "https://www.abayachting.com/en/pdf/Beneteau-Oceanis-54-usata-2023/n97eIB1yIU2AmvxtTC4EvQ/v/bim/1",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed PDF particulars: Hull Year Built, Year Registration, Engine and description",
        "evidence": "The original broker's specification explicitly pairs a 2023-built Oceanis 54, three cabins and three bathrooms plus crew cabin, with Yanmar 4JH110. The full PDF fetch failed; the engine/year passage was available in the search index."
      },
      {
        "id": "bengrand-oc55-grabau-darksyde",
        "title": "Grabau International: DARKSYDE, 2017-built / 2018-model Oceanis 55, seller listing",
        "url": "https://www.yachtworld.co.uk/yacht/2017-beneteau-oceanis-55-10331268/",
        "kind": "documented-vessel-example",
        "locator": "Seller description; Full Sales Inventory / MACHINERY / Engine & gearbox",
        "evidence": "The original selling broker explicitly lists DARKSYDE with a Yanmar 4JH110, producing 110 hp at 3200 rpm. The listing distinguishes 2017 build from 2018 model year."
      },
      {
        "id": "bengrand-oc60-devalk-2015",
        "title": "De Valk: 2015 Beneteau Oceanis 60, reference 811385",
        "url": "https://www.devalk.nl/en/yachtbrokerage/811385/BENETEAU-OCEANIS-60.html",
        "kind": "documented-vessel-example",
        "locator": "Built; Engine(s); Machinery",
        "evidence": "This 2015 Oceanis 60, length 18.24 m, has one Volkswagen 140-5 diesel, 140 hp. This is not evidence for the newer Oceanis Yacht 60 design."
      },
      {
        "id": "bengrand-clip323-bjmarine-2004",
        "title": "BJ Marine Pwllheli: 2004 Oceanis Clipper 323, seller listing",
        "url": "https://www.yachtworld.it/yacht/2004-beneteau-oceanis-clipper-323-10178277/",
        "kind": "documented-vessel-example",
        "locator": "Seller description; Propulsione",
        "evidence": "BJ Marine's 2004 lifting-keel Oceanis Clipper 323 has a Yanmar 3gm30f, engine year 2004, 29 hp. Letter case is normalized to 3GM30F."
      },
      {
        "id": "bengrand-clip411-boatshed-2003",
        "title": "Boatshed Portsmouth: 2003 Beneteau Oceanis 411 Clipper, reference 246542",
        "url": "https://norfolk.boatshed.com/beneteau_oceanis_411-boat-246542.html",
        "kind": "documented-vessel-example",
        "locator": "Main particulars; Mechanical / Engine make and model",
        "evidence": "The broker's archived 2003 Clipper example explicitly has one Volvo D2-55 four-cylinder diesel, 55 hp, with a straight shaft."
      },
      {
        "id": "bengrand-oy62-azul-2018",
        "title": "Azul Yachts: Oceanis Yacht 62, 2018, Odoo reference 2085",
        "url": "https://www.azulyachts.com/en/my/products/2085/ficha_en",
        "kind": "documented-vessel-example",
        "locator": "PDF page 1, FEATURES / Year and Engine type",
        "evidence": "The dealer's own specification explicitly lists a 2018 Oceanis Yacht 62 and Yanmar 6BY3-160, 160 hp."
      },
      {
        "id": "cat-bali40",
        "title": "Croatia Yachting: 2018 Bali 4.0 equipment overview",
        "url": "https://bali-catamarans-dealer-croatia.com/images/ownership/yacht-annexes/used-bali-4_0-2018-overview.pdf",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed equipment passage",
        "evidence": "Two Volvo D2-40 engines replace the standard 20 hp equipment on this 2018 vessel."
      },
      {
        "id": "cat-bali41",
        "title": "Catana: Bali 4.1 owner's manual, February 2018",
        "url": "https://www.booking-manager.com/wbm2/bmdoc/3892661409705620_BALI_4.1_OWNER%27S_MANUAL.pdf",
        "kind": "manufacturer-manual",
        "locator": "Page 10, General Specifications / available engine weights",
        "evidence": "The twin-engine boat specification explicitly lists Volvo D2-40 among available engines. Other strings in the table appear inconsistent and are not normalized into guessed engine models."
      },
      {
        "id": "cat-bali42-y",
        "title": "Simpson Marine: 2021 Bali 4.2 vessel specification",
        "url": "https://www.simpsonmarine.com/yachts/Bali-4.2-9473047/pdf/",
        "kind": "documented-vessel-example",
        "locator": "PROPULSION, Engine No. 1 and Engine No. 2",
        "evidence": "Both propulsion engines are explicitly Yanmar 4JH45, 45 hp, engine year 2021."
      },
      {
        "id": "cat-bali42-n",
        "title": "Croatia Yachting: 2023 Bali 4.2 seller listing",
        "url": "https://www.inautia.com/boat/2023-bali-4-2-10244230/",
        "kind": "documented-vessel-example",
        "locator": "Seller Croatia Yachting; Engine and Total Power",
        "evidence": "The 2023 Seget vessel is listed with Nanni N4.50 engines and 90 hp total; this is a different documented installation, not a replacement for the Yanmar evidence."
      },
      {
        "id": "cat-bali43",
        "title": "Dream Yacht: SAMOA, 2017 Bali 4.3 inventory",
        "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1073",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed title and Engine(s) / Engine Model",
        "evidence": "The operator's SAMOA inventory identifies the 2017 Bali 4.3 engine model as Volvo D2 50 F, explicitly 2 x 50 hp. Full PDF retrieval failed; support is the indexed inventory passage."
      },
      {
        "id": "cat-bali44-y",
        "title": "Broker vessel listing: 2022 Bali 4.4 in Oren",
        "url": "https://boats.com/sailing-boats/2022-bali-4-4-10153184/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion; Engine and Propulsion System",
        "evidence": "This 2022 vessel has two Yanmar 4JH57 engines, 57 hp each, with 2444 hours recorded."
      },
      {
        "id": "cat-bali44-n",
        "title": "Master Yachting central listing: 2024 Bali 4.4 in Oren",
        "url": "https://www.boats.com/sailing-boats/2024-bali-4-4-10323339/",
        "kind": "documented-vessel-example",
        "locator": "Presented For Sale By Master Yachting; Propulsion",
        "evidence": "The central broker lists two Nanni Diesel N4.65 engines on the 2024 vessel. The displayed 59 hp rating is retained only as source context."
      },
      {
        "id": "cat-bali45",
        "title": "Catamaran Guru: 2017 Bali 4.5 original sale inventory",
        "url": "https://catamaranguru.com/2017-bali-4-5-for-sale-great-buy/",
        "kind": "documented-vessel-example",
        "locator": "Engines entry",
        "evidence": "The original sale inventory explicitly gives two Volvo D2-55F engines with saildrives."
      },
      {
        "id": "cat-bali46",
        "title": "Yacht Deals: 2024 Bali 4.6, Marseille seller listing",
        "url": "https://boats.com/sailing-boats/2024-bali-4-6-10186998/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion; vessel launched October 2023",
        "evidence": "Two Yanmar 4JH57 engines are identified, with 2023 engine years on the advertised 2024 model."
      },
      {
        "id": "cat-bali48",
        "title": "Nina Yachting: 2023 Bali 4.8, Marmaris seller listing",
        "url": "https://www.boats.com/sailing-boats/2023-bali-4-8-10363912/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, port and starboard engine entries",
        "evidence": "The broker explicitly lists twin Yanmar 4JH80 engines, 80 hp each, engine year 2023."
      },
      {
        "id": "cat-bali52",
        "title": "Yachting 360: Bali 5.2 equipment specification",
        "url": "https://www.yachting360.fr/de/bateaux/bali-52",
        "kind": "authorized-dealer-specification",
        "locator": "Search-indexed propulsion paragraph",
        "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
      },
      {
        "id": "cat-bali52-price",
        "title": "Croatia Yachting: Bali 5.2 price list A2026",
        "url": "https://bali-catamarans-dealer-croatia.com/images/ownership/yacht-annexes/Tarif%20Bali%205.2%20A2026.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "Engines and Safety equipment; Nanni propeller line",
        "evidence": "The 2026 list offers twin Nanni 115 hp in lieu of Yanmar 57 hp and explicitly identifies the corresponding Nanni N4.115 propeller package."
      },
      {
        "id": "cat-bali54",
        "title": "Yacht Broker House: 2019 Bali 5.4, Sicily",
        "url": "https://www.ybh.gr/yachts/bali-54-2019",
        "kind": "documented-vessel-example",
        "locator": "Main Info / Engine Type and Overview",
        "evidence": "The broker identifies two Yanmar 4JH80 engines, 80 hp each, on this 2019 six-guest-cabin vessel; SD60 is separately a drive."
      },
      {
        "id": "cat-bali58",
        "title": "Angelina Yachting: 2025 Bali 5.8, Biograd seller listing",
        "url": "https://www.boats.com/sailing-boats/2025-bali-5-8-9658486/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, port and starboard entries",
        "evidence": "Both 2025 propulsion engines are explicitly Nanni N4.115, 115 hp each."
      },
      {
        "id": "cat-catsmart",
        "title": "Croatia Yachting: 2025 Bali Catsmart, Kastela seller listing",
        "url": "https://www.boats.com/sailing-boats/2025-bali-catsmart-9860644/?showDealerLocator=1",
        "kind": "documented-vessel-example",
        "locator": "Propulsion / engine make and model",
        "evidence": "The dealer's 2025 Catsmart vessel listing identifies Nanni N3.30 propulsion and 22.4 kW per engine."
      },
      {
        "id": "cat-catspace",
        "title": "Port Pin Rolland: 2023 Bali Catspace owner version",
        "url": "https://www.boats.com/sailing-boats/2023-bali-catspace-9270626/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, Engine 1 and Engine 2",
        "evidence": "The original seller lists two Yanmar 3JH40 engines, each 40 hp, on this 2023 three-cabin Catspace."
      },
      {
        "id": "cat-astrea",
        "title": "Just Catamarans: 2019 Astrea 42 FAVORITE CHILD",
        "url": "https://justcatamarans.net/wp-content/uploads/2023/02/2019-Fountaine_Pajot-Astrea_42-02182023.pdf",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Information and Features / propulsion",
        "evidence": "The original broker's 2019 Astrea 42 vessel brochure identifies Volvo Penta D2-50 engines."
      },
      {
        "id": "cat-aura",
        "title": "Broker seller listing: 2024 Aura 51, Fort Lauderdale",
        "url": "https://www.boattrader.com/boat/2024-fountaine-pajot-aura-51-10061688/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, Engine 1 and Engine 2",
        "evidence": "Both 2024 propulsion engines are explicitly Volvo D2-75. The page gives inconsistent horsepower across engine rows, so no rating is adopted."
      },
      {
        "id": "cat-elba",
        "title": "Fountaine Pajot Elba 45 Grand Large inventory",
        "url": "https://canetboatplaisance.com/wp-content/uploads/2022/02/inventaire-fr-elba-45-fountaine-pajot.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 12/15, C-1 Moteurs et equipements",
        "evidence": "The manufacturer inventory distributed by Canet Boat Plaisance explicitly lists two Volvo D2-50 saildrive engines."
      },
      {
        "id": "cat-fp44",
        "title": "BJ Marine: 2026 Fountaine Pajot FP44 seller specification",
        "url": "https://uk.boats.com/sailing-boats/2026-fountaine-pajot-fp44-10360829/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, both engine entries",
        "evidence": "The BJ Marine 2026 FP44 listing specifies two Yanmar 4JH57-CE engines, 57 hp each."
      },
      {
        "id": "cat-isla",
        "title": "Fountaine Pajot Isla 40 owner's manual",
        "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
        "kind": "manufacturer-manual",
        "locator": "Page 7, Characteristics / Inboard engines table",
        "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
      },
      {
        "id": "cat-my37",
        "title": "De Valk: Fountaine Pajot MY 37, reference 811803",
        "url": "https://www.devalk.nl/en/brochure_full/811803/FOUNTAINE-PAJOT-MY-37.html",
        "kind": "documented-vessel-example",
        "locator": "MACHINERY, page 3",
        "evidence": "The broker explicitly lists two Volvo D3-220 engines, 220 hp, installed in 2017."
      },
      {
        "id": "cat-my4s",
        "title": "MarineMax: 2022 MY4.S VINO FLORIDA",
        "url": "https://inventory.marinemax.com/products/2022-fountaine-pajot-my-4-s",
        "kind": "documented-vessel-example",
        "locator": "Description / Notable Features",
        "evidence": "MarineMax's own listing identifies twin Yanmar 4LV250 propulsion engines, 250 hp each, on its 2022 stock vessel."
      },
      {
        "id": "cat-my5",
        "title": "Baotic Yachting: 2022 Fountaine Pajot MY5 seller listing",
        "url": "https://www.boatshop24.com/de/boot/2022-fountaine-pajot-my5-7868354/",
        "kind": "documented-vessel-example",
        "locator": "Seller Baotic Yachting / Motoranzeige",
        "evidence": "The official dealer's 2022 vessel listing explicitly names Volvo Penta IPS400 D6-300 and 600 hp total; D6-300 is the engine identity, IPS400 the propulsion package."
      },
      {
        "id": "cat-saba",
        "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
        "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
        "kind": "manufacturer-manual",
        "locator": "Technical Information / Characteristics / Inboard engines",
        "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
      },
      {
        "id": "cat-saona",
        "title": "Ward Yacht Sales: 2020 Saona 47 AILA",
        "url": "https://www.wardyachtsales.com/yachts-for-sale/2020-fountaine-pajot-saona-47-fort-pierce-florida-2850622",
        "kind": "documented-vessel-example",
        "locator": "Engines (twin), Volvo D2-60 #1 and #2",
        "evidence": "The original broker identifies two Volvo D2-60 engines, 60 hp each, on the 2020 Maestro vessel."
      },
      {
        "id": "cat-lag38",
        "title": "TMG seller listing: 2026 Lagoon 38 hull 6, Church Point",
        "url": "https://www.boats.com/sailing-boats/2026-lagoon-38-10073292/",
        "kind": "documented-vessel-example",
        "locator": "Engines; description of Lagoon 38 hull 6",
        "evidence": "The new Lagoon 38 example explicitly has two Yanmar 3YM30AE 29 hp engines; it is not the older Lagoon 380."
      },
      {
        "id": "cat-lag39",
        "title": "SAIL Tahiti: 2013 Lagoon 39 ALVOCO seller listing",
        "url": "https://www.boats.com/sailing-boats/2013-lagoon-39-10160650/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion; vessel description ALVOCO",
        "evidence": "The original broker identifies twin Yanmar 3YM30 engines, 29 hp each, from 2013."
      },
      {
        "id": "cat-lag40",
        "title": "Broker seller listing: 2019 Lagoon 40, Lazio",
        "url": "https://www.boats.com/sailing-boats/2019-lagoon-40-9783288/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, both engine entries",
        "evidence": "This 2019 Lagoon 40 explicitly has two Yanmar 4JH45 engines, each rated 45 hp."
      },
      {
        "id": "cat-lag40-57",
        "title": "Simpson Marine: 2019 Lagoon 40, reference 8861191",
        "url": "https://www.simpsonmarine.com/yachts/Lagoon-40-8861191/pdf/",
        "kind": "documented-vessel-example",
        "locator": "PROPULSION",
        "evidence": "The original broker names two 2019 Yanmar 4JH57 engines, 57 hp each. This separate installation is not assumed to be a universal factory option."
      },
      {
        "id": "cat-lag42-45",
        "title": "The Catamaran Company: 2020 Lagoon 42 PAU HANA",
        "url": "https://www.catamarans.com/Brochure/Brochure_453495_10-07-2025_15_18_17.pdf",
        "kind": "documented-vessel-example",
        "locator": "Vessel specifications / Engine Model and Engine Configuration",
        "evidence": "The original broker lists Yanmar 4JH45, 45 hp, twin configuration, with 2019 engine years on a 2020 vessel."
      },
      {
        "id": "cat-lag42-57",
        "title": "Lagoon dealer: documented 2020 Lagoon 42, reference 50",
        "url": "https://www.lagoon-catamaran.de/gebrauchtboote/detail/lagoon-42-50.html",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed 2020 vessel description / Motor",
        "evidence": "The dealer describes a 2020 four-cabin Lagoon 42 and explicitly names Yanmar 4JH57. The prior reviewed registry supplies the twin-engine count; a fresh search reconfirmed model and year, although direct page retrieval did not complete."
      },
      {
        "id": "cat-lag43",
        "title": "Harel Yachts: 2026 Lagoon 43, Gibraltar seller listing",
        "url": "https://www.boats.com/sailing-boats/2026-lagoon-43-10108131/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, both engine entries",
        "evidence": "The new-generation sailing Lagoon 43 is listed with two Yanmar 4JH57 engines, 57 hp each, engine year 2025; not the old 43 Powercat."
      },
      {
        "id": "cat-lag46",
        "title": "Lagoon Katamaran Nord: Lagoon 46 price list B2026",
        "url": "https://www.lagoon-catamaran.de/fileadmin/B2026/Preisliste_Lagoon46_B2026_EN.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "BOAT / STANDARD",
        "evidence": "The dealer's 2026 specification explicitly defines standard equipment as two Yanmar 4JH57 engines of 57 hp."
      },
      {
        "id": "cat-lag50",
        "title": "Broker seller listing: 2020 Lagoon 50 HORTZ",
        "url": "https://www.yachtworld.com/yacht/2020-lagoon-50-10055308/",
        "kind": "documented-vessel-example",
        "locator": "Inventory / Engines",
        "evidence": "The vessel inventory explicitly lists two Yanmar 4JH80 engines, 80 hp, with engine years March 2020."
      },
      {
        "id": "cat-lag51",
        "title": "Lagoon Katamaran Nord: Lagoon 51 price list A2026",
        "url": "https://www.lagoon-catamaran.de/fileadmin/Preislisten/A2026/Lagoon_51_Preisliste_A2026_EN.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "September 2025 A2026, BOAT / STANDARD and LAYOUT",
        "evidence": "The 2026 list explicitly specifies two Yanmar 4JH80 engines, 80 hp each, across listed cabin arrangements."
      },
      {
        "id": "cat-lag52f",
        "title": "Adriatic Sailing: 2015 Lagoon 52 F SERENITY",
        "url": "https://www.adriatic-sailing.hr/Downloads/Lagoon52f-Serenity.pdf",
        "kind": "documented-vessel-example",
        "locator": "Year of Build/Refit; engine, generator and performance",
        "evidence": "The charter operator identifies 2015 build, 2023 refit and two Yanmar 4JH4-TE main engines, 75 hp each."
      },
      {
        "id": "cat-lag52f-80",
        "title": "The Multihull Company: 2020 Lagoon 52 F CHICAGO",
        "url": "https://www.multihullcompany.com/boat/lagoon-52-f-9978544/",
        "kind": "documented-vessel-example",
        "locator": "Engines and Propulsion",
        "evidence": "The broker explicitly lists two Yanmar 4JH80 engines, 80 hp each, on this 2020 Lagoon 52F."
      },
      {
        "id": "cat-lag55",
        "title": "Simpson Marine: 2023 Lagoon 55 hull 17",
        "url": "https://www.simpsonmarine.com/yachts/Lagoon-55-10024850/",
        "kind": "documented-vessel-example",
        "locator": "Engines; Specs and Options / LAGOON 55 #17",
        "evidence": "The original broker explicitly identifies two Nanni N4-115 engines, 115 hp each, on the 2023 example."
      },
      {
        "id": "cat-lag55-y",
        "title": "Marine Servicenter: 2026 Lagoon 55 new-boat offer",
        "url": "https://www.boats.com/sailing-boats/2026-lagoon-55-9020273/",
        "kind": "authorized-dealer-specification",
        "locator": "Propulsion, both engine entries",
        "evidence": "The dealer's new-boat offer identifies two Yanmar 4JH80 engines of 80 hp. The template separately labels engine years 2022, so it does not establish a specific delivered 2026 hull."
      },
      {
        "id": "cat-lag55-110",
        "title": "Horizon Yacht Sales: 2026 Lagoon 55 STELLA MARE",
        "url": "https://boats.com/sailing-boats/2026-lagoon-55-10311002/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, both engine entries; STELLA MARE description",
        "evidence": "The operator/broker's 2026 vessel listing explicitly identifies two Yanmar 4JH110 engines, 110 hp each."
      },
      {
        "id": "cat-lag60",
        "title": "Marina's Service: 2025 Lagoon 60 seller listing",
        "url": "https://au.yachtworld.com/yacht/2025-lagoon-60-10039389/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, Engine 1 and Engine 2",
        "evidence": "The 2025 sailing Lagoon 60 is explicitly listed with two Yanmar 4LV150 engines, 150 hp each."
      },
      {
        "id": "cat-lag380",
        "title": "DBY Boat Sales: Lagoon 380 original vessel brochure",
        "url": "https://www.dbyboatsales.com.au/?bdbrochure=lagoon-380-1&mode=2",
        "kind": "documented-vessel-example",
        "locator": "Engine Details / refurbishment paragraph",
        "evidence": "The original broker explicitly records two Yanmar 3YM30 engines dated 2014 on a refurbished Lagoon 380. This is a replacement-engine vessel example."
      },
      {
        "id": "cat-lag380s2",
        "title": "Lighthouse Yachting: 2007 Lagoon 380 S2",
        "url": "https://www.lighthouseyachting.com/lagoon-380-s2---2007",
        "kind": "documented-vessel-example",
        "locator": "Engines, Engine 1 and Engine 2",
        "evidence": "The broker identifies two Yanmar 3ym30 engines built in 2007, each 29 hp; redundant total-power labels are inconsistent and not used."
      },
      {
        "id": "cat-lag400",
        "title": "Lighthouse Yachting: 2011 Lagoon 400 owner's version",
        "url": "https://www.lighthouseyachting.com/lagoon-400---2011",
        "kind": "documented-vessel-example",
        "locator": "Engines, Engine 1 and Engine 2",
        "evidence": "Both 2011 engines are explicitly Yanmar 3JH5ACE, 40 hp each."
      },
      {
        "id": "cat-lag400s2",
        "title": "Marine Team: 2015 Lagoon 400 S2 original sale inventory",
        "url": "https://marineteam.es/producto/lagoon-400-s2-ano-2015/",
        "kind": "documented-vessel-example",
        "locator": "Motor / engine make and power",
        "evidence": "The original broker names Yanmar 3JH5E engines with 2 x 40 cv, 6800 hours, in its 2015 S2 listing."
      },
      {
        "id": "cat-lag440",
        "title": "Just Catamarans: Lagoon 440 AINULINDALE",
        "url": "https://justcatamarans.net/wp-content/uploads/2017/01/AINULINDALE-Brochure.pdf",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The original broker brochure explicitly identifies Yanmar 4JH4-CE SD. The SD drive description is not treated as a separate engine model."
      },
      {
        "id": "cat-lag450",
        "title": "The Catamaran Company: 2014 Lagoon 450 CHAPTER TWO",
        "url": "https://www.boattrader.com/boat/2014-lagoon-450-10048369/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion; seller The Catamaran Company",
        "evidence": "The broker's 2014 Lagoon 450 listing explicitly identifies twin Yanmar 4JH5E engines, with 2013 engine years and 54 hp each."
      },
      {
        "id": "cat-lag450f",
        "title": "Grassi Bateaux: 2017 Lagoon 450 F original dealer listing",
        "url": "https://www.grassibateaux.com/lagoon-450-f-3/",
        "kind": "documented-vessel-example",
        "locator": "Description / Motorisation; Moteurs",
        "evidence": "The original selling dealer identifies Yanmar 4JH57 engines on its 2017 Lagoon 450 F, described as first-owner and sold new by that dealership."
      },
      {
        "id": "cat-lag450s",
        "title": "Lagoon Katamaran Nord: Lagoon 450 Sporttop technical data",
        "url": "https://www.lagoon-catamaran.de/en/lagoon-models/lagoon-450-sporttop.html",
        "kind": "authorized-dealer-specification",
        "locator": "Technical data / Motorisation",
        "evidence": "The dealer explicitly publishes two Yanmar 4JH45 engines, 45 hp each, for the Sporttop variant."
      },
      {
        "id": "cat-lag560",
        "title": "Broker seller listing: 2012 Lagoon 560, Fernandina Beach",
        "url": "https://www.boats.com/sailing-boats/2012-lagoon-560-9927043/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, port and starboard entries",
        "evidence": "The vessel listing explicitly identifies two Yanmar 4JH4-HTE engines, 110 hp each, with 2011 engine years."
      },
      {
        "id": "cat-lag620",
        "title": "Grupo Marino Altamar: 2017 Lagoon 620 seller listing",
        "url": "https://www.boats.com/sailing-boats/2017-lagoon-620-9691067/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion; twin Volvo Penta diesel description",
        "evidence": "The original seller explicitly identifies two Volvo Penta D3-150 engines, 150 hp each, on its 2017 Lagoon 620."
      },
      {
        "id": "cat-lag65",
        "title": "Broker seller listing: 2024 Lagoon SIXTY 5 BIG PICTURE",
        "url": "https://www.boats.com/sailing-boats/2024-lagoon-sixty-5-9153332/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion; BIG PICTURE description",
        "evidence": "The vessel listing explicitly identifies two Yanmar 4LV195 engines, 195 hp each, on the 2024 sailing SIXTY 5."
      },
      {
        "id": "cat-lag65-volvo",
        "title": "Broker seller listing: 2021 Lagoon SIXTY 5",
        "url": "https://www.boattrader.com/boat/2021-lagoon-sixty-5-10143023//",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, Engine 1 and Engine 2",
        "evidence": "The 2021 vessel listing explicitly identifies two Volvo D4-175 engines, 175 hp each."
      },
      {
        "id": "cat-lag67",
        "title": "Simpson Marine: Lagoon SIXTY 7, reference 9152998",
        "url": "https://www.simpsonmarine.com/yachts/Lagoon-SIXTY%207-9152998/pdf/",
        "kind": "documented-vessel-example",
        "locator": "PROPULSION, both engine entries",
        "evidence": "The broker's motor-catamaran inventory explicitly lists twin Yanmar 6LY400 engines. It is not evidence for the sailing SIXTY 5."
      },
      {
        "id": "cat-lucia-2019",
        "title": "Atalanta Marine: 2019 Fountaine Pajot Lucia 40 vessel brochure",
        "url": "https://atalantamarine.com/wp-content/uploads/2025/03/FOUNTAINE-PAJOT-LUCIA-40-2019.pdf",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed yacht specification / engines",
        "evidence": "The broker's 2019 vessel brochure explicitly identifies two Volvo Penta D1-30 engines."
      },
      {
        "id": "cat-lag42-2024",
        "title": "Lagoon Katamaran Nord: Lagoon 42 E2024 specification",
        "url": "https://www.lagoon-catamaran.de/fileadmin/user_upload/Lagoon_42_E2024_.pdf",
        "kind": "authorized-dealer-specification",
        "locator": "Base owner version; four-cabin version; delivery through 31 December 2024",
        "evidence": "The dated dealer list explicitly names twin Yanmar 4JH57 engines of 57 hp in both base layouts."
      },
      {
        "id": "cat-lag52f-2017",
        "title": "Broker vessel listing: 2017 Lagoon 52 F, St Thomas",
        "url": "https://www.boattrader.com/boat/2017-lagoon-52-f-9455248/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion, Engine 1 / Engine 2; Engine and Helm Station",
        "evidence": "The two main propulsion engines are explicitly Yanmar 4JH80, 80 hp each, engine year 2016. Additional listed Onan and Honda units are generator and tender equipment, not additional propulsion engines."
      },
      {
        "id": "cat-catsmart-manufacturer",
        "title": "Bali Catsmart manufacturer specifications A2024",
        "url": "https://www.bali-catamarans.com/wp-content/uploads/sites/4/2024/05/Caracteristiques-BALI-CATSMART-A2024-GB.pdf",
        "kind": "manufacturer-specification",
        "locator": "Search-indexed technical equipment / engine passage",
        "evidence": "Manufacturer explicitly gives two Nanni engines with model N3.30. The line also gives an apparently inconsistent 19.6 hp rating and 29 hp option; no rating is adopted."
      },
      {
        "id": "cat-bali43my-philya-2019",
        "title": "Catamaran Center S.L: 2019 Bali 4.3 MY PHILYA seller listing",
        "url": "https://www.boats.com/power-boats/2019-bali-4-3-my-9099754/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed original seller advertisement / Boat Details; Propulsion, both engine entries",
        "evidence": "Catamaran Center's advertisement explicitly lists two Yanmar 4LV-250 engines, engine year 2019. The listing's power units are inconsistent, so no power rating is adopted. Direct opening redirected to the seller platform's general Bali listings; the exact model fields remain search-indexed."
      },
      {
        "id": "cat-lag52-2015-ref1500",
        "title": "Windward Islands Yachting & Travel: 2015 Lagoon 52, broker reference 1500",
        "url": "https://www.worldwideyachtbroker.com/en/pdf/1500",
        "kind": "documented-vessel-example",
        "locator": "Page 1 / LAGOON 52 4 cabins version (2015); Engine; Engine HP; Comments",
        "evidence": "The original broker PDF labels this four-cabin vessel Lagoon 52, built in 2015, and explicitly lists two Yanmar 4JH4TCE engines of 75 hp. It does not label the vessel 52 F."
      },
      {
        "id": "cat-lag77-handbook-2016",
        "title": "Lagoon Seventy 7 technical handbook, September 2016, manufacturer document reproduction",
        "url": "https://manualzz.com/doc/58479554/lagoon-seventy-7-technical-handbook",
        "kind": "manufacturer-manual",
        "locator": "Pages 3 and 8-9 / Technical sheet; Engines; Volvo Penta engine designation table",
        "evidence": "The original Lagoon handbook specifies standard Volvo engines and reproduces the exact D4-180 I designation, 132 kW / 180 hp at 2800 rpm. The twin-engine installation has separate port and starboard engine rooms. Its optional-engine line prints JOHN DEER and N5.230; that branding is not silently converted into a Nanni installation on a 2019 hull."
      },
      {
        "id": "cat-lag77-manaia-2023",
        "title": "Odyssea: 2023 Lagoon Seventy 7 MANAIA original broker specification",
        "url": "https://www.odysseayachting.com/ownership-preowned-manaia-seventy-7-2023",
        "kind": "documented-vessel-example",
        "locator": "General Information / Year; Main Propulsion / Port and Starboard; Propulsion & Engineering",
        "evidence": "The broker explicitly identifies a 2023 Seventy 7 and separately lists the port and starboard main engines as Nanni N5.230, 230 hp each, with engine year 2023. This is not evidence of the installation on a 2019 boat."
      },
      {
        "id": "cat-yanmar-3ym30ae-3200-spec",
        "title": "Yanmar Marine International: exact 3YM30AE engine specification",
        "url": "https://www.yanmar.com/marine/product/engines/3ym30ae/",
        "kind": "manufacturer-specification",
        "locator": "Specifications / Rated output; Rated Speed; Displacement",
        "evidence": "Yanmar explicitly rates the 3YM30AE at 21.3 kW / 29.1 metric hp and 3200 rpm, with 1.266 L displacement. These are version-specific engine data, not boat installation evidence and not support for substituting AE from horsepower alone."
      },
      {
        "id": "de-dufour37",
        "title": "Angelina Yachting: Dufour 37 model specification",
        "url": "https://angelina-yachting.eu/model-dufour-37.html",
        "kind": "authorized-dealer-specification",
        "locator": "Search-indexed model specification passage",
        "evidence": "The dealer explicitly names the Volvo Penta D1-20 engine for the Dufour 37, with a 140 L fuel capacity."
      },
      {
        "id": "de-dufour41",
        "title": "ACY Yachts: 2024 Dufour 41, Marina del Rey",
        "url": "https://www.boattrader.com/boat/2024-dufour-41-10109132//",
        "kind": "documented-vessel-example",
        "locator": "Seller ACY Yachts - Marina Del Rey; Propulsion",
        "evidence": "The broker's 2024 Dufour 41 listing specifies a single Volvo Penta D2-60 diesel, 60 hp, engine year 2024."
      },
      {
        "id": "de-dufour44new",
        "title": "Euro Sail Yacht: Dufour 44, November 2024 offer",
        "url": "https://www.eurosailyacht.com/en/latest-offers/267/44-novembre-2024",
        "kind": "documented-vessel-example",
        "locator": "Main profile",
        "evidence": "The new-generation Dufour 44 offer explicitly lists engine Volvo Penta D2-60, with three cabins and two bathrooms."
      },
      {
        "id": "de-dufour48mono",
        "title": "Broker stock listing: 2025 Dufour 48, Queensland",
        "url": "https://www.yachtworld.com/yacht/2025-dufour-48-10282855/",
        "kind": "documented-vessel-example",
        "locator": "Mechanical and performance inventory; search-indexed engine description",
        "evidence": "The 2025 monohull stock boat has one Yanmar 4JH80 common-rail diesel rated in the listing at 80 hp. SD60 is separately described as its saildrive, not its engine."
      },
      {
        "id": "de-dufour48cat",
        "title": "ProSail: Dufour 48 Catamaran, 2019",
        "url": "https://www.prosail.it/en/yachts/dufour-48-catamaran-2019/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed engine specification",
        "evidence": "The 2019 Dufour 48 Catamaran listing names two Volvo Penta D2 60 engines, each 60 hp."
      },
      {
        "id": "de-dufour56-110",
        "title": "Grabau International: 2019 Dufour 56 Exclusive",
        "url": "https://www.grabauinternational.com/dompdf/dompdf.php?input_file=https%3A%2F%2Fwww.grabauinternational.com%2Fbrokerage_print_pdf.php%3Fid%3D3001239&out=2019-dufour-56-exclusive-3001239",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed machinery and broker comments",
        "evidence": "The original broker's 2019 Dufour 56 Exclusive brochure names a Volvo D3-110 engine and four-bladed feathering propeller."
      },
      {
        "id": "de-dufour56-150",
        "title": "Caraibe Yachts: Dufour 56 Exclusive sold vessel",
        "url": "https://www.caraibe-yachts.com/en/bateaux/sold/dufour-56-exclusive",
        "kind": "documented-vessel-example",
        "locator": "ENGINE(S)",
        "evidence": "The selling broker explicitly describes one Volvo Penta D3-150 diesel with V-drive transmission. The extracted passage does not establish the boat's build year."
      },
      {
        "id": "de-dufour310",
        "title": "Star Yachting: 2014 Dufour 310 Grand Large inventory",
        "url": "https://www.star-yachting.fr/en/media-file/1242926/star-yachting-fiche-bateau-dufour-310-grand-large-en.pdf",
        "kind": "documented-vessel-example",
        "locator": "Characteristics and Engine specification",
        "evidence": "The broker sheet identifies a 2014 Dufour 310 Grand Large and one Volvo Penta D1-20 with saildrive."
      },
      {
        "id": "de-dufour335",
        "title": "De Valk: 2014 Dufour 335 Grand Large, reference 400656",
        "url": "https://www.devalk.nl/en/yachtbrokerage/400656/DUFOUR-335-GRAND-LARGE.html",
        "kind": "documented-vessel-example",
        "locator": "General and Machinery",
        "evidence": "The 2014 boat has one Volvo Penta D1-30, 29 hp, installed in 2014. The listing separately records a 2022/2023 overhaul."
      },
      {
        "id": "de-dufour350-f",
        "title": "Northstar Yacht Sales: 2017 Dufour 350 Grand Large Astra",
        "url": "https://www.northstaryachtsales.com/boat-details/2017-dufour-350-grand-large-34-8656593",
        "kind": "documented-vessel-example",
        "locator": "Engines",
        "evidence": "Astra is described as model year 2017; the engine field names Volvo-Penta D1-30F, engine year 2016, 29 hp."
      },
      {
        "id": "de-dufour350-dream",
        "title": "Dream Yacht: 2015 Dufour 350 GL Valencia",
        "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1091?lang=it",
        "kind": "documented-vessel-example",
        "locator": "Vessel header and Inventory / Engine(s)",
        "evidence": "The charter operator's Valencia inventory names Volvo Penta D1-30 and 30 hp; the Volvo Penta 130 S-B is separately the saildrive."
      },
      {
        "id": "de-dufour360",
        "title": "Dream Yacht: 2019 Dufour 360 Snowdrop",
        "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1172",
        "kind": "documented-vessel-example",
        "locator": "Vessel header and Inventory / Engine(s)",
        "evidence": "The 2019 Snowdrop inventory explicitly names Volvo D1 30, 30 hp, separately from the Volvo 130 S D saildrive."
      },
      {
        "id": "de-dufour375-volvo",
        "title": "De Valk: Dufour 375 Grand Large, reference 807067",
        "url": "https://www.devalk.nl/en/yachtbrokerage/807067/DUFOUR-375-GRAND-LARGE.html",
        "kind": "documented-vessel-example",
        "locator": "General and Machinery",
        "evidence": "The 2011-built, 2012-launched boat has one Volvo Penta D2-40F, listed at 39 hp, installed in 2011."
      },
      {
        "id": "de-dufour375-yanmar",
        "title": "Xboat: 2011 Dufour 375 Grand Large, reference 6179",
        "url": "https://www.xboat.uk/PDFs-6179-DUFOUR_DUFOUR-375-GRAND-LARGE",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed vessel year and Engines table",
        "evidence": "The original broker sheet names a 2011 Dufour 375 Grand Large with one Yanmar 3YM30. It does not support the different 3YM30AE designation."
      },
      {
        "id": "de-dufour382",
        "title": "Dream Yacht: 2017 Dufour 382 Grand Large Taonga",
        "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/984",
        "kind": "documented-vessel-example",
        "locator": "Vessel header and Engine Model",
        "evidence": "The charter operator's 2017 Taonga inventory explicitly names Volvo Penta D2-40F."
      },
      {
        "id": "de-dufour390",
        "title": "Broker listing: 2019 Dufour 390, Marseille",
        "url": "https://www.boats.com/sailing-boats/2019-dufour-390-9979766/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The 2019 Dufour 390 listing explicitly gives Volvo D2 40 as the engine model."
      },
      {
        "id": "de-dufour390gl",
        "title": "ProSail: 2019 Dufour 390 Pixie",
        "url": "https://www.prosail.it/en/yachts/dufour-390-2019-pixie/",
        "kind": "documented-vessel-example",
        "locator": "Information and engine specification",
        "evidence": "The broker explicitly calls the design 390 Grand Large and names a 40 hp Volvo Penta D2-40 SD. SD describes the saildrive installation."
      },
      {
        "id": "de-dufour410",
        "title": "Broker listing: 2015 Dufour 410 GL, Mamaroneck",
        "url": "https://www.boats.com/sailing-boats/2015-dufour-410-gl-10320590/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed vessel description and Propulsion / Engine Model",
        "evidence": "The 2015 410 GL listing explicitly names the Volvo Penta D2-55F engine."
      },
      {
        "id": "de-dufour412-50",
        "title": "Dream Yacht: 2017 Dufour 412 Bermuda",
        "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1178",
        "kind": "documented-vessel-example",
        "locator": "Vessel header and Engine Model",
        "evidence": "The charter operator's 2017 Bermuda inventory names Volvo D2 50 as the engine model."
      },
      {
        "id": "de-dufour412-55",
        "title": "Broker listing: 2016 Dufour 412 Grand Large, Bormes-les-Mimosas",
        "url": "https://ca.boats.com/sailing-boats/2016-dufour-412-grand-large-10308800/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The 2016 412 Grand Large listing explicitly gives Volvo Penta D2-55."
      },
      {
        "id": "de-dufour430",
        "title": "W-Yachts: 2024 Dufour 430, Vestre Amoy",
        "url": "https://ca.boats.com/sailing-boats/2024-dufour-430-9987789/",
        "kind": "documented-vessel-example",
        "locator": "Seller description and Propulsion / Engine Model",
        "evidence": "The dealer's 2024 stock vessel is described as upgraded to 60 hp and its engine model is explicitly D2-60, Volvo Penta."
      },
      {
        "id": "de-dufour430gl",
        "title": "Malta Yachting: Dufour 430 Grand Large",
        "url": "https://www.maltayachting.com.mt/product/dufour-430-grand-large/",
        "kind": "authorized-dealer-specification",
        "locator": "Search-indexed Engine Model field",
        "evidence": "The dealer's Dufour 430 Grand Large specification explicitly gives engine model D2-60."
      },
      {
        "id": "de-dufour460-60",
        "title": "Williams and Smithells: 2017 Dufour 460 Grand Large",
        "url": "https://www.williamsandsmithells.com/?marinesync_pdf=12917",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed description and model/year specification",
        "evidence": "The original broker describes the 2017 Dufour 460 Grand Large as powered by a 60 hp Volvo D2-60F engine."
      },
      {
        "id": "de-dufour460-75",
        "title": "Abayachting: 2016 Dufour 460 Grand Large",
        "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-460-Grand-Large-usata-2016/zsM9ihJE7ECIne4ldsa-UA/v/bim/1",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Model / Engine table",
        "evidence": "The broker's 2016 460 Grand Large sheet explicitly names Volvo Penta D2-75."
      },
      {
        "id": "de-dufour470-75",
        "title": "Racing-Yachts: 2024 Dufour 470, reference 774",
        "url": "https://www.racing-yachts.com/app/web/upload/pdfs/774.pdf",
        "kind": "documented-vessel-example",
        "locator": "Vessel particulars and Engine",
        "evidence": "The original broker's 2024 Dufour 470 sheet specifies Volvo Penta D2-75."
      },
      {
        "id": "de-dufour470-60",
        "title": "TNC Proyect: 2023 Dufour 470, Denia",
        "url": "https://www.youboat.com/boat/2023-dufour-470-9833171/",
        "kind": "documented-vessel-example",
        "locator": "Seller Marcos Perez Manglano / TNC Proyect; Engine Model",
        "evidence": "The broker's 2023 Dufour 470 example explicitly names Volvo Penta D2-60F, 60 hp."
      },
      {
        "id": "de-dufour520-110",
        "title": "Abayachting: 2018 Dufour 520 Grand Large - 520 GL",
        "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-520-Grand-Large-520-Gl-usata-2018/jCBiFTTyf0mHTbe92Fh9gQ/v/bim/1",
        "kind": "documented-vessel-example",
        "locator": "Model / Engine table",
        "evidence": "The broker's 2018 Dufour 520 Grand Large - 520 GL sheet explicitly names Volvo D3-110."
      },
      {
        "id": "de-dufour520-75",
        "title": "Broker listing: 2018 Dufour 520 Grand Large, Cecina",
        "url": "https://uk.boats.com/sailing-boats/2018-dufour-520-grand-large-10263608/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "This separate 2018 520 Grand Large vessel explicitly has a Volvo Penta D2-75."
      },
      {
        "id": "de-dufour530-110",
        "title": "Broker listing: 2021 Dufour 530 Grand Large, Port Saint Louis",
        "url": "https://www.boattrader.com/boat/2021-dufour-530-grand-large-8577668/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The vessel's engine field explicitly reads D3-110 / HS63IV-E, Volvo Penta. D3-110 is the engine; HS63IV-E is the transmission and is not retained as an engine model."
      },
      {
        "id": "de-dufour530-80",
        "title": "Broker listing: 2024 Dufour 530, reference 9555041",
        "url": "https://www.youboat.com/boat/2024-dufour-530-9555041/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The 2024 Dufour 530 vessel listing explicitly names Yanmar 4JH80."
      },
      {
        "id": "de-dufour560",
        "title": "Broker listing: 2015 Dufour 560 Grand Large",
        "url": "https://www.inautia.com/boat/2015-dufour-560-grand-large-2015-9480677/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The 2015 Dufour 560 Grand Large listing explicitly names Volvo Penta D3-110I-G; the I-G suffix is retained."
      },
      {
        "id": "de-dufourexclusive56",
        "title": "Yacht Broker House: 2017 Dufour Exclusive 56, Corfu",
        "url": "https://www.boats.com/sailing-boats/2017-dufour-exclusive-56-10032440/",
        "kind": "documented-vessel-example",
        "locator": "Seller Yacht Broker House; search-indexed Propulsion / Engine Model",
        "evidence": "The 2017 Dufour Exclusive 56 broker listing explicitly names Volvo Penta D3-150i."
      },
      {
        "id": "de-dufourexclusive63",
        "title": "Bach Yachting: 2018 Dufour 63 Exclusive",
        "url": "https://www.bachyachting.com/boat/sailboat-dufour_63_exclusive-2018-for_sale-475723",
        "kind": "documented-vessel-example",
        "locator": "Description and Engine model",
        "evidence": "The original broker specifies Volvo Penta D4-180I-F diesel, 132 kW / 180 hp, on the 2018 Dufour 63 Exclusive."
      },
      {
        "id": "de-elan333",
        "title": "Yachtlink: Elan 333 vessel particulars",
        "url": "https://www.yachtlink.be/print/pdf/node/196",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Machinery and Vessel's Particulars",
        "evidence": "The original broker's Elan 333 sheet names one Yanmar 2GM20F, listed at 18 bhp. Build year was not established from the indexed passage."
      },
      {
        "id": "de-elan344",
        "title": "Batagent: Elan Impression 344, 2008 equipment list",
        "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-e344.pdf",
        "kind": "documented-vessel-example",
        "locator": "Vessel header and Motor",
        "evidence": "The broker's 2008 Elan Impression 344 inventory explicitly names Volvo Penta D1-30B, 29 hp, and identifies the individual hull."
      },
      {
        "id": "de-elan350",
        "title": "Nicolle Associates: 2010 Elan 350, Southampton",
        "url": "https://www.boats.com/sailing-boats/2010-elan-350-4790246/",
        "kind": "documented-vessel-example",
        "locator": "Seller Nicolle Associates; Propulsion / Engine Model",
        "evidence": "The broker's Elan 350 listing names Volvo Penta D1-30. This is an older 2010 example, not the catalogue's 2012/2013 individual boats."
      },
      {
        "id": "de-elan384",
        "title": "David Walters Yachts: 2006 Elan Impression 384 YoungBloods",
        "url": "https://www.davidwaltersyachts.com/for-sale/10055144",
        "kind": "documented-vessel-example",
        "locator": "Description and Engine Model",
        "evidence": "The original broker names Volvo Penta D2-40, 40 hp, for the 2006 Elan Impression 384."
      },
      {
        "id": "de-elan434-75",
        "title": "Petzold's Marine Center: 2007 Elan Impression 434",
        "url": "https://www.boats.com/sailing-boats/2007-elan-impression-434-10132864/",
        "kind": "documented-vessel-example",
        "locator": "Seller and Propulsion / Engine Model",
        "evidence": "The broker's 2007 Impression 434 example in Cranston explicitly names Volvo Penta D2-75B."
      },
      {
        "id": "de-elan434-55",
        "title": "Nautilus Yacht Management: 2006 Elan Impression 434, Nadi",
        "url": "https://www.boats.com/sailing-boats/2006-elan-impression-434-10237305/?showDealerLocator=1",
        "kind": "documented-vessel-example",
        "locator": "Seller and Propulsion / Engine Model",
        "evidence": "A separate 2006 Impression 434 example explicitly names Volvo Penta D2-55C."
      },
      {
        "id": "de-elan444",
        "title": "Sunlife Charter: Elan 444 Impression TIGER",
        "url": "https://www.sunlife.hr/en/charter/yachtdetails/p/yachtId-3297750265000116/Elan%2B444%2BImpression-TIGER.html",
        "kind": "documented-vessel-example",
        "locator": "Specification / Engine",
        "evidence": "The charter operator's TIGER specification names Volvo D2-55 F. The indexed engine passage does not establish TIGER's build year."
      },
      {
        "id": "de-elan514",
        "title": "Xboat: 2008 Elan 514 Impression, reference 4489",
        "url": "https://www.xboat.uk/PDFs-4489-ELAN-ELAN%2B514%2BIMPRESSION",
        "kind": "documented-vessel-example",
        "locator": "Vessel year and Engines table",
        "evidence": "The original broker specifies one Volvo D2-75, 75 hp, for the 2008 Elan 514 Impression."
      },
      {
        "id": "de-elane3-yanmar",
        "title": "Elan E3 Standard 2022 B equipment sheet, hosted by Sailway",
        "url": "https://sailway.es/wp-content/uploads/2022/02/E3_Standard-EU_2022B.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF pages 1-2, Technical Specifications and Engine Equipment",
        "evidence": "The manufacturer sheet explicitly specifies Yanmar 3YM20 as the E3 standard engine. The electric option is only described by power and manufacturer, not an exact motor model."
      },
      {
        "id": "de-elane3-volvo",
        "title": "Racing-Yachts: Elan E3, reference 365",
        "url": "https://www.racing-yachts.com/app/web/upload/pdfs/365.pdf",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Engine field",
        "evidence": "The original broker's E3 vessel sheet explicitly names D1-20 Volvo Penta; the indexed passage does not establish build year."
      },
      {
        "id": "de-elane4-manual",
        "title": "Elan E4 owner's manual, 23 September 2015",
        "url": "https://aquatoria-yachting.com/f/e4_owners_manual_23092015.pdf",
        "kind": "manufacturer-manual",
        "locator": "Printed page 22, section 6.2.2 Engine and Propeller Installation",
        "evidence": "The manual explicitly says standard E4 versions are equipped with a Volvo D1-30 engine with saildrive. Some unrelated figure/footer labels retain E360 text, but this engine paragraph expressly names E4."
      },
      {
        "id": "de-elane4-yanmar",
        "title": "Floor Yachts: Elan E4 2019 equipment/price list",
        "url": "https://www.flooryachts.dk/wp-content/uploads/2019/06/Elan_2019_08_B-E4_Dkr_.pdf",
        "kind": "manufacturer-specification",
        "locator": "Search-indexed engine equipment item",
        "evidence": "The E4 document explicitly names Yanmar engine 3YM30AE. The AE suffix is part of the identity and must not be dropped or matched automatically to 3YM30."
      },
      {
        "id": "de-elane5",
        "title": "Elan E5 Standard 2019 B, Meadream Sailing / Elan Yachts France",
        "url": "https://www.meadream-sailing.com/wp-content/uploads/2020/11/Elan-Yachts-E5.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 3, Equipement Moteur",
        "evidence": "The 2019 B manufacturer equipment sheet names Volvo Penta D2-40 saildrive. The summary table's power-only Volvo field is not the basis for the identification."
      },
      {
        "id": "de-elane6-yanmar",
        "title": "Elan E6 Standard 2022 B equipment sheet, hosted by Sailway",
        "url": "https://sailway.es/wp-content/uploads/2022/02/E6_Standard-EU_2022B.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF pages 1-2, engine specification rows and Engine Equipment",
        "evidence": "The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence."
      },
      {
        "id": "de-elane6-volvo",
        "title": "De Valk: 2022 Elan E6, reference 812156",
        "url": "https://www.devalk.nl/en/yachtbrokerage/812156/ELAN-E6.html",
        "kind": "documented-vessel-example",
        "locator": "Vessel year and Machinery",
        "evidence": "The original broker's 2022 Elan E6 example explicitly has one Volvo D2-60F, 60 hp. This observed installation differs from the Yanmar manufacturer-sheet configuration."
      },
      {
        "id": "de-elangt6",
        "title": "Elan GT Line manufacturer brochure",
        "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-GT_Line_1.pdf",
        "kind": "manufacturer-specification",
        "locator": "Technical specification comparison, ELAN GT6 column / Engine (standard)",
        "evidence": "The brochure explicitly assigns Yanmar 4JH57 to GT6 in the standard-engine row; the neighbouring GT5 column lists a different engine and is not used."
      },
      {
        "id": "de-elani35",
        "title": "Vining Marine: 2015 Elan Impression 35",
        "url": "https://viningmarine.co.nz/yachts/elan-impression-35/",
        "kind": "documented-vessel-example",
        "locator": "Specifications / engine make, model and year",
        "evidence": "The broker's 2015 boat explicitly has Volvo D1-20F, engine year 2015. The F suffix is retained."
      },
      {
        "id": "de-elani40",
        "title": "I. Castaner Yachts: 2018 Elan Impression 40, Marbella",
        "url": "https://www.boats.com/power-boats/2018-elan-impression-40-10280522/",
        "kind": "documented-vessel-example",
        "locator": "Seller I. Castaner Yachts Brokerage & Charter; Propulsion / Engine Model",
        "evidence": "The broker's Impression 40 vessel explicitly has Volvo Penta D2-40. The portal URL uses power-boats, but the vessel and model in the ad are the sailing Impression 40."
      },
      {
        "id": "de-elani401",
        "title": "Broker listing: 2021 Elan Impression 40.1, Pula",
        "url": "https://www.boatshop24.com/us/boat/2021-elan-impression-40-1-10333878/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The 2021 Impression 40.1 vessel explicitly names Volvo Penta D2-50, 50 hp / 37.3 kW. It is not evidence of all 2020/2022/2023 charter boats."
      },
      {
        "id": "de-elani43",
        "title": "Elan Impression Line manufacturer brochure: Impression 43",
        "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 8, Impression 43 technical specifications column",
        "evidence": "The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat."
      },
      {
        "id": "de-elani45-current",
        "title": "Elan Impression 45 manufacturer brochure, September 2024",
        "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 18, Technical specifications",
        "evidence": "The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45."
      },
      {
        "id": "de-elani45-legacy",
        "title": "Broker listing: 2019 Elan Impression 45, reference 9113406",
        "url": "https://www.topboats.com/uk/boat/2019-elan-impression-45-9113406/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Propulsion / Engine Model",
        "evidence": "The 2019 legacy Impression 45 vessel listing explicitly names Volvo Penta D2-55; this evidence is kept separate from the current renamed Impression design."
      },
      {
        "id": "de-elani451-standard",
        "title": "Elan Impression 45.1 Standard 2020 B equipment sheet",
        "url": "https://irp-cdn.multiscreensite.com/0515d615/files/uploaded/I45-1_Standard-EU_2020B.pdf",
        "kind": "manufacturer-specification",
        "locator": "Engine Equipment section",
        "evidence": "The manufacturer equipment list explicitly names Volvo Penta D2-50 with saildrive. The Yanmar option in the summary is only 57 hp and is not identified by inference."
      },
      {
        "id": "de-elani451-75",
        "title": "De Valk: 2023 Elan Impression 45.1, reference 812510",
        "url": "https://www.devalk.nl/en/yachtbrokerage/812510/ELAN-IMPRESSION-45.1.html",
        "kind": "documented-vessel-example",
        "locator": "Vessel year and Machinery",
        "evidence": "The original broker's 2023 Impression 45.1 example explicitly has one Volvo D2-75."
      },
      {
        "id": "de-elani50",
        "title": "DMA Yachting: 2019 Elan Impression 50, Faro",
        "url": "https://www.boats.com/sailing-boats/2019-elan-impression-50-10365070/",
        "kind": "documented-vessel-example",
        "locator": "Seller DMA YACHTING SL; Propulsion / Engine Model",
        "evidence": "The broker's 2019 Elan Impression 50 listing explicitly names Volvo Penta D2-75, 75 hp."
      },
      {
        "id": "de-elani501-standard",
        "title": "Elan Yachts: Impression 50.1 technical specification",
        "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-501",
        "kind": "manufacturer-specification",
        "locator": "Technical Specification / Engine (standard)",
        "evidence": "The manufacturer explicitly names Yanmar 4JH80, 58.8 kW / 80 mhp, as standard in the cited current specification."
      },
      {
        "id": "de-elani501-volvo",
        "title": "SYS Yacht Sales: 2022 Elan Impression 50.1 Mystic Impression",
        "url": "https://sysyachtsales.com/yacht-search/2022/elan-impression-50-1-mystic-impression/9761443/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed engine equipment inventory",
        "evidence": "The original broker's 2022 Impression 50.1 example explicitly lists Volvo Penta D2-75 with S-drive, providing an older observed alternative to the current Yanmar specification."
      },
      {
        "id": "de-dufour44-2004-dby",
        "title": "DBY Boat Sales: 2004 Dufour 44 ALL DAY, stock INDU442820",
        "url": "https://www.dbyboatsales.com.au/?bdbrochure=dufour-44",
        "kind": "documented-vessel-example",
        "locator": "PDF page 1 Boat Details / Inventory; page 2 Features; page 4 Engine Details",
        "evidence": "The original broker PDF explicitly calls ALL DAY a 2004 Dufour 44, attributes the design to Umberto Felci / Patrick Roseo, and lists one Volvo Penta D2-55, 55 hp. The observed boat has a three-cabin owner layout. Although the inventory field says Engine Standard, this vessel listing is not treated as proof of universal factory fit."
      },
      {
        "id": "de-elan45-secondomare",
        "title": "Secondo Mare: Elan 45, 2001, vessel ID 1012",
        "url": "https://secondomare.com/boat/elan-45-for-sale/",
        "kind": "documented-vessel-example",
        "locator": "Basic info; Additional specifications / Engine",
        "evidence": "The original selling broker identifies a 2001 Elan 45, length 13.42 m, and explicitly lists engine manufacturer Yanmar, model 4JH3E, engine year 2001, diesel, shaft drive. No horsepower-based model inference is involved."
      },
      {
        "id": "de-elani45ex43-rename",
        "title": "Elan Yachts: Impression 43 Gets Longer and Becomes Impression 45, 29 July 2024",
        "url": "https://www.elan-yachts.com/en/news/elan-impression-43-gets-longer-and-becomes-elan-impression-45",
        "kind": "manufacturer-specification",
        "locator": "Dated manufacturer announcement, model-history and design-update paragraphs",
        "evidence": "Elan explicitly links the 2022-launched Impression 43 to the renamed Impression 45 in July 2024. It attributes increased overall length to a fixed bowsprit and describes cockpit-window and saloon updates. This establishes the modern 43-to-45 generation relationship, not an engine on any individual charter boat and not a link to the legacy Impression 45."
      },
      {
        "id": "de-elani45ex43-2023-spec",
        "title": "Elan Impression 43 Standard 2023 A equipment specification",
        "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf",
        "kind": "manufacturer-specification",
        "locator": "PDF page 1 Technical Specifications / Engine Yanmar rows; page 2 Engine Equipment",
        "evidence": "The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement."
      },
      {
        "id": "de-elani45ex43-previous-model",
        "title": "Elan Yachts: previous-model Impression 43 technical specification",
        "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-43",
        "kind": "manufacturer-specification",
        "locator": "Technical Specification / Engine (standard) and Engine (option)",
        "evidence": "The manufacturer's retained Impression 43 page explicitly lists Yanmar 4JH45 standard and 4JH57 / 4JH80 options. The current Impression 45 page links to this page as its previous version, and the separate July 2024 announcement establishes the model-name transition."
      },
      {
        "id": "hanse-mixed-h345-2017",
        "title": "Dave Townley Yachts: 2017 Hanse 345",
        "url": "https://davetownleyyachts.com/2017-hanse-345",
        "kind": "documented-vessel-example",
        "locator": "ENGINE",
        "evidence": "Selling broker lists a Yanmar 3YM30AE diesel on this 2017 Hanse 345 and calls it the larger engine upgrade."
      },
      {
        "id": "hanse-mixed-h348-2021",
        "title": "XBOAT: 2021 Hanse 348",
        "url": "https://www.xboat.fr/6007-HANSE_HANSE-348.html",
        "kind": "documented-vessel-example",
        "locator": "FICHE TECHNIQUE / Moteurs",
        "evidence": "The original broker specifies one Yanmar 3YM30AE diesel in its 2021 Hanse 348."
      },
      {
        "id": "hanse-mixed-h348-2024",
        "title": "BOATERY: Hanse 348 two-cabin vessel",
        "url": "https://boatery.dk/vare/hanse-348-2-cabin/",
        "kind": "documented-vessel-example",
        "locator": "Baddetaljer; Yderligere information; Motor/elinstallationer",
        "evidence": "Broker lists one Yanmar 3YM30, 29 hp and model year 2024; narrative separately says first launched 2022. AE suffix is not published."
      },
      {
        "id": "hanse-mixed-h360-2025",
        "title": "Hanse Vertriebs: 2025 Hanse 360 stock boat",
        "url": "https://www.yachtworld.com/yacht/2025-hanse-360-9834595/",
        "kind": "documented-vessel-example",
        "locator": "Seller description / Engine",
        "evidence": "Hanse Vertriebs identifies Yanmar 3JH40 in this 2025 stock boat and describes it as the stronger-engine extra."
      },
      {
        "id": "hanse-mixed-h385-2013",
        "title": "BoatAgent: 2013 Hanse 385, Tyreso",
        "url": "https://boatagent.com/boats/hanse-385-tyreso-2013/",
        "kind": "documented-vessel-example",
        "locator": "Fakta Hanse 385 -2013 / KEY FACTS",
        "evidence": "Original broker identifies Volvo Penta D1-30 propulsion on this 2013 Hanse 385."
      },
      {
        "id": "hanse-mixed-h388-2023",
        "title": "De Valk: 2023 Hanse 388 Maan",
        "url": "https://www.devalk.nl/en/yachtbrokerage/811438/HANSE-388.html",
        "kind": "documented-vessel-example",
        "locator": "Built / Machinery",
        "evidence": "2023 boat, launched May 2024, has one Yanmar 3YM30AE diesel according to the selling broker."
      },
      {
        "id": "hanse-mixed-h388-2022",
        "title": "De Valk: Hanse 388 Morgon",
        "url": "https://www.devalk.nl/en/yachtbrokerage/810815/HANSE-388.html",
        "kind": "documented-vessel-example",
        "locator": "Broker comments / Machinery",
        "evidence": "Morgon was built in 2021, delivered in 2022 and listed as built 2022; machinery is one Yanmar 3JH40, 39 hp."
      },
      {
        "id": "hanse-mixed-h400-2011-f",
        "title": "Mark Cameron Yachts: 2011 Hanse 400 Tarskavaig",
        "url": "https://www.mcyachts.co.uk/news/new-listing-2011-hanse-400-tarskavaig/",
        "kind": "documented-vessel-example",
        "locator": "Equipment highlights",
        "evidence": "Original selling broker specifically lists a 2011 Volvo Penta D2-40F engine and separately identifies the saildrive."
      },
      {
        "id": "hanse-mixed-h400-2011",
        "title": "De Valk: 2011 Hanse 400, reference 812423",
        "url": "https://www.devalk.nl/en/yachtbrokerage/812423/HANSE-400.html",
        "kind": "documented-vessel-example",
        "locator": "Machinery / Year installed",
        "evidence": "Selling broker identifies one Volvo Penta D2-40 installed in 2011 on its 2011 Hanse 400; no F suffix is stated."
      },
      {
        "id": "hanse-mixed-h410-yanmar",
        "title": "YANMAR Marine: Hanse 410 at boot Dusseldorf 2024",
        "url": "https://www.youtube.com/watch?v=6IQTQx4X0ww",
        "kind": "manufacturer-specification",
        "locator": "YANMAR Marine video title, published 23 May 2024",
        "evidence": "Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional."
      },
      {
        "id": "hanse-mixed-h415-2016-40",
        "title": "Croatia Yachting: 2016 Hanse 415 in Kastela",
        "url": "https://uk.boats.com/sailing-boats/2016-hanse-415-7837955/",
        "kind": "documented-vessel-example",
        "locator": "Presented for sale by Croatia Yachting / Propulsion",
        "evidence": "The selling dealer's 2016 vessel listing identifies one Volvo Penta D2-40 diesel."
      },
      {
        "id": "hanse-mixed-h415-2016-55f",
        "title": "Kevin Dailey Yacht Brokerage: 2016 Hanse 415 Acadia",
        "url": "https://www.boattrader.com/boat/2016-hanse-415-9882923/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion / Acadia details",
        "evidence": "Selling broker's Acadia listing specifies Volvo D2-55F diesel propulsion, an exact alternative to the D2-40 example."
      },
      {
        "id": "hanse-mixed-h418-2021",
        "title": "De Valk: 2021 Hanse 418, reference 808225",
        "url": "https://www.devalk.nl/en/yachtbrokerage/808225/HANSE-418.html",
        "kind": "documented-vessel-example",
        "locator": "Machinery",
        "evidence": "Broker specifies one Yanmar 4JH57, 57 hp, installed 2021 on this 2021 Hanse 418."
      },
      {
        "id": "hanse-mixed-h418-2019",
        "title": "Lelystad Yachtshift: 2019 Hanse 418",
        "url": "https://lelystad.yachtshift.nl/179/hanse-418",
        "kind": "documented-vessel-example",
        "locator": "Hoofdmotor",
        "evidence": "Original vessel listing explicitly names a Yanmar 3JH5E, engine year 2019, 39 hp."
      },
      {
        "id": "hanse-mixed-h430e-2008",
        "title": "De Valk: 2008 Hanse 430E",
        "url": "https://www.devalk.nl/en/yachtbrokerage/300537/HANSE-430E.html",
        "kind": "documented-vessel-example",
        "locator": "General / Machinery",
        "evidence": "Selling broker identifies a 2008 epoxy Hanse 430E with one Yanmar 3JH4 E engine installed in 2008."
      },
      {
        "id": "hanse-mixed-h430e-2007",
        "title": "BoatAgent: 2007 Hanse 430e equipment list",
        "url": "https://batagent.se/wp-content/uploads/2023/06/import/hanse-430e-equipment-list-eng.pdf",
        "kind": "documented-vessel-example",
        "locator": "Engine",
        "evidence": "Original broker's 2007 epoxy 430e inventory identifies Yanmar 4JH4E, 55 hp; SD-50 appears separately as the saildrive."
      },
      {
        "id": "hanse-mixed-h455-2017",
        "title": "Yacht Trade Denmark: 2017 Hanse 455",
        "url": "https://www.yachttradedenmark.com/da/solgte-bade/hanse-455",
        "kind": "documented-vessel-example",
        "locator": "Modelar / Motorproducent / Antal motorer / HK",
        "evidence": "Original broker lists model year 2017 and one Yanmar 4JH57, 57 hp."
      },
      {
        "id": "hanse-mixed-h458-2024",
        "title": "De Valk: 2024 Hanse 458 Nebulas",
        "url": "https://www.devalk.nl/en/yachtbrokerage/812187/HANSE-458.html",
        "kind": "documented-vessel-example",
        "locator": "Built / Engine(s) / Broker comments",
        "evidence": "2024 Nebulas is explicitly listed with one Yanmar 4JH80, 80 hp."
      },
      {
        "id": "hanse-mixed-h458-2025",
        "title": "Clipper Marine: 2025 Hanse 458, Patra",
        "url": "https://www.inautia.com/boat/2025-hanse-458-10295430/",
        "kind": "documented-vessel-example",
        "locator": "Clipper Marine seller description / Engine Model",
        "evidence": "Clipper Marine's original vessel listing identifies Yanmar 4JH57, 57 hp, on a Hanse 458 delivered in spring 2025."
      },
      {
        "id": "hanse-mixed-h460-80",
        "title": "Wilkinson Marine: Hanse 460",
        "url": "https://www.wilkinsonmarine.com/store/p159/Hanse_460.html",
        "kind": "documented-vessel-example",
        "locator": "MACHINERY / Engine and gearbox",
        "evidence": "Selling broker explicitly identifies one Yanmar 4JH80 common-rail diesel rated 80 hp, 59 kW at 3200 rpm. SD-60 is described separately as gearbox."
      },
      {
        "id": "hanse-mixed-h460-57",
        "title": "ADS Marine: Hanse 460, build 2023 / model 2024",
        "url": "https://ads-marine.com/en/sail-boats/hanse-460?f=print_page&type=pdf",
        "kind": "documented-vessel-example",
        "locator": "GENERAL INFORMATION / PROPULSION",
        "evidence": "Broker's vessel PDF specifies 2023 build, 2024 model year and one Yanmar 4JH57, 57 hp."
      },
      {
        "id": "hanse-mixed-h505-dealer",
        "title": "Firros Yachts: Hanse 505 technical characteristics",
        "url": "https://www.firrosyachts.com/hanse/hanse-505/",
        "kind": "authorized-dealer-specification",
        "locator": "Les caracteristiques techniques du Hanse 505",
        "evidence": "Hanse dealer's model page explicitly publishes Volvo Penta D2-75 at 72 CV / 53 kW. Authorization was independently verified in Hanse's dealer directory at https://hanseyachts.com/gb/dealers/firros-yachts-16/."
      },
      {
        "id": "hanse-mixed-h505-2014",
        "title": "YOTI: Hanse 505 First Light",
        "url": "https://www.yoti.com.au/?bdbrochure=hanse-505-first-light-sold",
        "kind": "documented-vessel-example",
        "locator": "Specifications / Year / Engine Make",
        "evidence": "Original broker's sold-boat brochure identifies 2014 Hanse 505 First Light with Volvo D2-75F."
      },
      {
        "id": "hanse-mixed-h508-2023",
        "title": "Yacht Broker House: 2023 Hanse 508 in Lavrio",
        "url": "https://boats.com/sailing-boats/2023-hanse-508-10256725/",
        "kind": "documented-vessel-example",
        "locator": "Presented for sale by Yacht Broker House / Propulsion / Seller description",
        "evidence": "Selling broker explicitly identifies Yanmar 4JH80, 80 hp, on this 2023 Hanse 508."
      },
      {
        "id": "hanse-mixed-h510-2023",
        "title": "Hanse Vertriebs: 2023 Hanse 510 in Greifswald",
        "url": "https://www.boats.com/sailing-boats/2023-hanse-510-9603428/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion / Seller description",
        "evidence": "Hanse Vertriebs' vessel listing explicitly names Yanmar 4JH110; this is the newer Berret-Racoupeau Hanse 510."
      },
      {
        "id": "hanse-mixed-h545-2011",
        "title": "Oceanis Yachts: Hanse 545 charter specification",
        "url": "https://oceanis.it/en/yacht-charter/hanse-545/",
        "kind": "documented-vessel-example",
        "locator": "Specifications / Year / Engine",
        "evidence": "Operator's own specification lists year 2011 and Volvo D3-110 HP under Engine; page summary separately says 2010."
      },
      {
        "id": "hanse-mixed-h548-2020",
        "title": "Nina Yachting: 2020 Hanse 548, Athens",
        "url": "https://uk.boats.com/power-boats/2020-hanse-548-10210022/",
        "kind": "documented-vessel-example",
        "locator": "Propulsion",
        "evidence": "Selling broker explicitly identifies a 2020 Yanmar 4JH110, 110 hp, shaft-drive installation. Platform's power-cruiser classification is inconsistent with the sailing model."
      },
      {
        "id": "hanse-mixed-h575-2015",
        "title": "Solaris Yachts brokerage: 2015 Hanse 575",
        "url": "https://www.solarisyachts.com/cms/wp-content/uploads/Hanse_575_Brokerage_EN_V2.pdf",
        "kind": "documented-vessel-example",
        "locator": "Page 4 / ENGINES - PROPULSION",
        "evidence": "Original brokerage brochure identifies VOLVO PENTA D3 150 with shaft transmission on a 2015 Hanse 575."
      },
      {
        "id": "hanse-mixed-h575-2013",
        "title": "Navark: 2013 Hanse 575",
        "url": "https://www.navark.se/files/pdf/hanse-575-2013.pdf",
        "kind": "documented-vessel-example",
        "locator": "PROPULSION",
        "evidence": "Original broker's 2013 vessel PDF names Volvo Penta D3-110HK; HK is the local horsepower label, not an added engine suffix."
      },
      {
        "id": "hanse-mixed-h588-2018",
        "title": "De Valk: 2018 Hanse 588 Magma",
        "url": "https://www.devalk.nl/en/yachtbrokerage/812828/HANSE-588.html",
        "kind": "documented-vessel-example",
        "locator": "Built / Machinery",
        "evidence": "Original broker specifies one Volvo Penta D3-150, 150 hp, on its 2018 Hanse 588 Magma."
      },
      {
        "id": "hanse-mixed-h588-2024",
        "title": "De Valk: Hanse 588, reference 812536",
        "url": "https://www.devalk.nl/nl/brochure_full/812536/HANSE-588.html",
        "kind": "documented-vessel-example",
        "locator": "MOTOR(EN) / Type / Geinstalleerd in jaar",
        "evidence": "Original brokerage brochure identifies one Yanmar 4LV150, 150 hp, installed in 2024."
      },
      {
        "id": "hanse-mixed-h590-2025",
        "title": "Croatia Yachting: 2025 Hanse 590 in Kastela",
        "url": "https://www.yachtworld.com/yacht/2025-hanse-590-9859175/",
        "kind": "documented-vessel-example",
        "locator": "Croatia Yachting seller description / Propulsion",
        "evidence": "Official Hanse dealer's 2025 vessel listing explicitly identifies one Yanmar 4LV150; power is published as 110 kW in the matching boats.com listing."
      },
      {
        "id": "hanse-mixed-n40-2008",
        "title": "Port Navy Service: 2008 Nautitech 40 Citron Vert",
        "url": "https://www.boat24.com/en/sailingboats/nautitech/nautitech-40/detail/745888/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed vessel details / Engine / Motorleistung; seller Port Navy Service",
        "evidence": "Original broker's platform listing names Citron Vert, build 2008, and Volvo D1-30 with two 30 hp engines. Full page returned 410 during review, so evidence is limited to the indexed passage."
      },
      {
        "id": "hanse-mixed-n40open-2015",
        "title": "Neo Marine: 2015 Nautitech 40 Open Roccamare brochure",
        "url": "https://neomarine.fr/wp-content/uploads/2024/12/Nautitech-Catamarans-40-Open-ROCCAMARE-%E2%80%93-Neomarine-%E2%80%93-Brochure-complete.pdf",
        "kind": "documented-vessel-example",
        "locator": "Page 2 / SPECIFICATIONS",
        "evidence": "Original broker's brochure explicitly gives year 2015, Volvo Penta D1-30 and twin 30 hp engines."
      },
      {
        "id": "hanse-mixed-n46open-2023",
        "title": "Neo Marine: 2023 Nautitech 46 Open",
        "url": "https://neomarine.fr/en/bateau/2023-nautitech-46-open-id52-en/",
        "kind": "documented-vessel-example",
        "locator": "Engine information",
        "evidence": "Original broker explicitly identifies two Volvo Penta D2-50 diesel saildrive engines, engine year 2023."
      },
      {
        "id": "hanse-mixed-s50-2019",
        "title": "Med Cat Yachts: 2019 Sunreef 50 vessel listing",
        "url": "https://yachtway.com/vessels/sunreef-yachts-50-3/",
        "kind": "documented-vessel-example",
        "locator": "Search-indexed Specifications / Engine; listing attributed to Med Cat Yachts, Sitges",
        "evidence": "Original broker-attributed listing explicitly identifies twin Yanmar 4JH80, each 80 hp, on a 2019 Sunreef 50. Full page showed maintenance during review."
      },
      {
        "id": "hanse-mixed-s60-2020",
        "title": "Ocean Sailing House: 2020 Sunreef 60 Vulpino",
        "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-60/",
        "kind": "documented-vessel-example",
        "locator": "Main Information / Propulsion",
        "evidence": "Operator explicitly names two Volvo Penta D4-175 engines and 129 kW each on 2020 Vulpino. Its drive-type field says saildrive and should be independently checked."
      },
      {
        "id": "hanse-mixed-s60-2023",
        "title": "Ledenko: 2023 Sunreef 60 vessel specification",
        "url": "https://ledenko.ngncms.si/en/sail-boats/sunreef-60?f=print_page&type=pdf",
        "kind": "documented-vessel-example",
        "locator": "GENERAL INFORMATION / PROPULSION",
        "evidence": "Original broker's vessel PDF explicitly names twin Volvo Penta D3-150I-H diesels, each 150 hp, on its 2023 sailing Sunreef 60."
      },
      {
        "id": "hanse-mixed-s60-2024",
        "title": "SSL Yachts: 2024 Sunreef 60",
        "url": "https://sslyachts.com/sunreef-60-6a9c0ad765e69",
        "kind": "documented-vessel-example",
        "locator": "Construction / Engine and Performance",
        "evidence": "Original broker identifies model year 2024 and two Yanmar 4LV170 engines."
      },
      {
        "id": "hanse-mixed-s70-2024",
        "title": "Ocean Sailing House: 2024 Sunreef 70 n+1",
        "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-70-n1/",
        "kind": "documented-vessel-example",
        "locator": "Main Information / Propulsion / Drive type / Electrical systems / Generators",
        "evidence": "Operator labels its 2024 n+1 Sunreef 70 ECO with twin John Deere PowerTech 6068TFM50, M4, 225 hp / 168 kW each under Propulsion, explicitly gives Direct drive, and lists generators separately under electrical systems. ECO wording alone does not establish electric propulsion."
      },
      {
        "id": "hanse-mixed-s70power-2023",
        "title": "Ocean Sailing House: 2023 Sunreef 70 Power Amber One",
        "url": "https://www.oceansailinghouse.com/charter-fleet/70-sunreef-power/",
        "kind": "documented-vessel-example",
        "locator": "Main Information / Propulsion",
        "evidence": "Operator specifies production year 2023 and twin MAN i6-850 engines, 850 hp / 625 kW each, on Amber One."
      },
      {
        "id": "hanse-mixed-s70power-730",
        "title": "Perfomax Marine: 2023 Sunreef 70 Power",
        "url": "https://perfomaxmarine.com/yacht-for-sale/2023-sunreef-70-power",
        "kind": "documented-vessel-example",
        "locator": "DESCRIPTION / MECHANICAL",
        "evidence": "Original selling broker explicitly describes twin MAN i6 730 HP engines on its private 2023 Sunreef 70 Power; this differs from Amber One's 850 rating."
      },
      {
        "id": "hanse-mixed-s70-n1-broker-2025",
        "title": "Ocean Sailing House: n+1 operator broker sheet, 2025",
        "url": "https://www.booking-manager.com/wbm2/bmdoc/9398151357903078_NplusONE-_BROKERS_2025.pdf",
        "kind": "documented-vessel-example",
        "locator": "Reviewer-supplied SPECS excerpt: PROPULSION and COMFORT / Power generators; retrieved PDF body confirms n+1, 2024",
        "evidence": "The supplied operator-sheet excerpt labels John Deere PowerTech 6068TFM50, M4, 225 hp under PROPULSION, separately from two 20.5 kVA power generators. The retrieved 11-page copy lacks that specifications panel; the operator's current webpage independently labels the Deere units as direct-drive propulsion and lists generators separately."
      },
      {
        "id": "hanse-mixed-s70-one-planet-electric",
        "title": "Sunreef Yachts: Sunreef 70 Eco One Planet",
        "url": "https://sunreef-yachts.com/en/launched/sunreef-70-eco-one-planet/",
        "kind": "manufacturer-specification",
        "locator": "DESCRIPTION / SPECIFICATION / Main engines / Generator",
        "evidence": "Manufacturer explicitly describes One Planet as an electric catamaran, with main electric-engine power and separate generator power fields. This is a different individual yacht from n+1; the page does not supply an exact electric motor model code."
      },
      {
        "id": "js-j53-storm",
        "title": "Storm Yachting: 2011 Jeanneau 53",
        "url": "https://stormyachting.com/sailing-yachts/2011-jeanneau-53/",
        "kind": "documented-vessel-example",
        "locator": "Engine & Machinery; Engine Type and Engine Date",
        "evidence": "The broker's 2011 vessel lists a Yanmar 4JH4-HTE main diesel, with engine date 2011 and advertised power 110 hp."
      },
      {
        "id": "js-j54-devalk",
        "title": "De Valk: Jeanneau 54, reference 812290",
        "url": "https://www.devalk.nl/nl/jachtmakelaardij/812290/JEANNEAU-54.html",
        "kind": "documented-vessel-example",
        "locator": "Bouwjaar and Motor(en); search-indexed passage",
        "evidence": "The broker identifies a 2017 Jeanneau 54 with one Yanmar 4JH80 diesel rated 80 hp."
      },
      {
        "id": "js-j54-second-wind",
        "title": "G. Winter's Sailing Center: 2017 Jeanneau 54 Second Wind",
        "url": "https://www.yachtworld.com/yacht/2017-jeanneau-54-10130239/",
        "kind": "documented-vessel-example",
        "locator": "Seller description and Propulsion; original selling-broker listing hosted on YachtWorld",
        "evidence": "The selling broker identifies the 2017 Jeanneau 54 Second Wind and a Yanmar 4JH110 diesel rated 110 hp. This is an individual vessel, not a model-wide standard."
      },
      {
        "id": "js-j60-price",
        "title": "Jeanneau Yachts 60 manufacturer price list, B2025 January 2025",
        "url": "https://www.kiriacoulis.com/sales/JeanneauYachts60_price.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, PROPULSION, code A *1 1ZI0",
        "evidence": "The Jeanneau-issued order/price sheet offers the Jeanneau Yachts 60 with a Yanmar 4LV150CR, 150 hp, shaft-drive propulsion package."
      },
      {
        "id": "js-j64-inventory",
        "title": "Jeanneau 64 manufacturer inventory: ENGINE & THRUSTER",
        "url": "https://app.jeanneau.com/inventory/17919",
        "kind": "manufacturer-specification",
        "locator": "ENGINE & THRUSTER; search-indexed passage",
        "evidence": "Jeanneau's 64 equipment inventory names the Volvo D4-180 and gives 180 hp / 132 kW with shaft and gearbox details."
      },
      {
        "id": "js-so33i-brochure",
        "title": "Jeanneau Sun Odyssey 33i original preliminary brochure",
        "url": "https://www.voile-et-vie.fr/docs/brochure-sun-odyssey-33i.pdf",
        "kind": "manufacturer-specification",
        "locator": "Specifications table, Motorisation Maxi / Engine / Motor",
        "evidence": "The original Jeanneau model brochure explicitly lists Yanmar 3YM20, 21 hp / 15 kW, for the Sun Odyssey 33i."
      },
      {
        "id": "js-so35-coneys",
        "title": "Coneys Marine: 2003 Jeanneau Sun Odyssey 35",
        "url": "https://www.boattrader.com/boat/2003-jeanneau-sun-odyssey-35-10176244/",
        "kind": "documented-vessel-example",
        "locator": "Seller's Boat Details, Description and Engine Maintenance/Upgrades; Propulsion",
        "evidence": "The original Coneys Marine listing explicitly names Yanmar 3GM30F in its seller description and propulsion fields for the 2003 boat; maintenance records are also specific to that engine."
      },
      {
        "id": "js-so36i-windward",
        "title": "Windward Sailing Charters: 2012 Sun Odyssey 36i WINDSWEPT",
        "url": "https://www.windwardcharters.com/sailboat-details-windswept",
        "kind": "documented-vessel-example",
        "locator": "Features & Specifications and Propulsion",
        "evidence": "The charter operator identifies WINDSWEPT as a 2012 Jeanneau Sun Odyssey 36i and lists Yanmar 3YM30 Diesel 29 HP."
      },
      {
        "id": "js-so42i-batagent",
        "title": "Batagent: 2007 Sun Odyssey 42i equipment list",
        "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-v2-2.pdf",
        "kind": "documented-vessel-example",
        "locator": "Page 1, title SUN ODYSSEY 42i, 2007 and Motor; revision 2018-05-24",
        "evidence": "The broker's equipment sheet identifies a Yanmar 4JH4-E, engine number E04861, in the 2007 Sun Odyssey 42i."
      },
      {
        "id": "js-so44i-devalk-te",
        "title": "De Valk: Sun Odyssey 44i, reference 812357",
        "url": "https://www.devalk.nl/en/brochure_full/812357/JEANNEAU-SUN-ODYSSEY-44I.html",
        "kind": "documented-vessel-example",
        "locator": "Machinery, page 3; search-indexed passage (direct open returned a server error)",
        "evidence": "The broker's indexed machinery table explicitly lists one Yanmar 4JH4-TE, 75 hp, installed in 2009. Its SD50-4T field describes a gearbox/drive, not the engine."
      },
      {
        "id": "js-so44i-devalk-e",
        "title": "De Valk: 2011 Sun Odyssey 44i, reference 813586",
        "url": "https://www.devalk.nl/en/yachtbrokerage/813586/JEANNEAU-SUN-ODYSSEY-44I.html",
        "kind": "documented-vessel-example",
        "locator": "General and Machinery; search-indexed passage",
        "evidence": "The broker names one Yanmar 4JH4E in a 2011 Sun Odyssey 44i. The listing also calls it 75 hp, a questionable pairing; that power is not carried into the setup."
      },
      {
        "id": "js-so45-esailing",
        "title": "eSailing: 2006 Sun Odyssey 45 Idefix 4",
        "url": "https://esailing.nl/en/boats/sold-boats/618/jeanneau-sun-odyssey-45",
        "kind": "documented-vessel-example",
        "locator": "General description and Engine; search-indexed passage",
        "evidence": "The broker identifies Idefix 4, built 2006, and explicitly lists a Yanmar 4JH3TE turbodiesel rated 75 hp, engine number E16140."
      },
      {
        "id": "js-so49-devalk",
        "title": "De Valk: 2006 Sun Odyssey 49, reference 811031",
        "url": "https://www.devalk.nl/en/yachtbrokerage/811031/JEANNEAU-SUN-ODYSSEY-49.html",
        "kind": "documented-vessel-example",
        "locator": "General and Machinery",
        "evidence": "The broker identifies a 2006 Sun Odyssey 49 with one Yanmar 4JH 3HTE, installed 2006. The advertised 90 hp is retained only as source context, not used to derive the engine identity."
      },
      {
        "id": "js-so49i-nautilus",
        "title": "Nautilus Yacht Management: 2008 Sun Odyssey 49i Ciel Rose",
        "url": "https://imgs.yachthub.com/3/1/6/9/3/0/Ciel_Rose_Brochure.pdf",
        "kind": "documented-vessel-example",
        "locator": "Pages 1, 3 and 4; Boat Details, Information & Features, Engine / Machinery",
        "evidence": "Nautilus's original broker PDF identifies Ciel Rose as a 2008 Sun Odyssey 49i, with one 2008 Yanmar 4JH4-TE rated 75 hp and engine number E12045."
      },
      {
        "id": "js-so49i-devalk",
        "title": "De Valk: 2008 Sun Odyssey 49i, reference 800051",
        "url": "https://www.devalk.nl/en/brochure_full/800051/JEANNEAU-SUN-ODYSSEY-49I.html",
        "kind": "documented-vessel-example",
        "locator": "Machinery, page 3; search-indexed passage",
        "evidence": "The broker lists one Yanmar 4JH4 HTE rated 110 hp, installed in 2008, for its 2008 Sun Odyssey 49i example."
      },
      {
        "id": "js-so54ds-storm",
        "title": "Storm Yachting: Sun Odyssey 54 DS, 2008 engine",
        "url": "https://stormyachting.com/sailing-yachts/jeanneau-sun-odyssey-54-ds/",
        "kind": "documented-vessel-example",
        "locator": "Engine & Machinery; Engine Type, Engine Power, Engine Date",
        "evidence": "The broker identifies a Yanmar 4JH4HTE main diesel with engine date 2008 and power 1 x 110 hp."
      },
      {
        "id": "js-so319-ac",
        "title": "A&C Yacht Brokers: Sun Odyssey 319 new-model specification",
        "url": "https://www.bateaux-antilles.fr/bateaux-neufs/jeanneau/sun-odyssey-319.html",
        "kind": "authorized-dealer-specification",
        "locator": "Voiles, motorisation et reservoirs",
        "evidence": "The Jeanneau dealer's archived new-model page explicitly names Yanmar 3YM20 with saildrive for the Sun Odyssey 319."
      },
      {
        "id": "js-so349-ads",
        "title": "ADS Marine: 2015 Sun Odyssey 349 vessel specification",
        "url": "https://www.ads-marine.com/en/used-boats/jeanneau-sun-odyssey-349?f=print_page&type=pdf",
        "kind": "documented-vessel-example",
        "locator": "Page 1, General Information and Propulsion",
        "evidence": "The broker identifies model year/build year 2015 and one Yanmar 3YM20 rated 21 hp; the equipment text also gives 15 kW and shaft drive."
      },
      {
        "id": "js-so350-locasail",
        "title": "Locasail: Sun Odyssey 350 January 2026 specification",
        "url": "https://www.locasail.com/bateaux-neufs/jeanneau-voile-yachts/sun-odyssey-350.html",
        "kind": "authorized-dealer-specification",
        "locator": "Price/version row immediately above Documentation, Tarif Janv 2026",
        "evidence": "The Jeanneau dealer explicitly advertises the Sun Odyssey 350 with Yanmar 3YM30AE, 29 CV, shaft drive. The AE suffix is present in the source."
      },
      {
        "id": "js-so379-annapolis",
        "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 379",
        "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-379-37-10319475",
        "kind": "documented-vessel-example",
        "locator": "Engine and Manuvering; Engines",
        "evidence": "The broker's 2015 Sun Odyssey 379 listing explicitly names Yanmar 3YM30, 29 hp, with saildrive. Hour counters differ within the page and are not used here."
      },
      {
        "id": "js-so380-jeanneau",
        "title": "Jeanneau Sun Odyssey 380 Just in Time offer, March 2025",
        "url": "https://app.jeanneau.com/uploads/media/image/interior/5254206d3ccfa7c9712ff64e27f6899b.pdf",
        "kind": "manufacturer-specification",
        "locator": "Offer equipment/price table, first propulsion row",
        "evidence": "The manufacturer's Sun Odyssey 380 offer names Yanmar 3JH40, 40 hp, shaft drive."
      },
      {
        "id": "js-so389-jeanneau",
        "title": "Jeanneau Sun Odyssey 389 equipment inventory",
        "url": "https://app.jeanneau.com/inventory/22559",
        "kind": "manufacturer-specification",
        "locator": "I TECHNICAL, Engine; search-indexed passage",
        "evidence": "Jeanneau's inventory explicitly names Yanmar 3YM30, 29 CV / 21 kW, saildrive for the Sun Odyssey 389."
      },
      {
        "id": "js-so410-price",
        "title": "Jeanneau Sun Odyssey 410 manufacturer price list, B2025 January 2025",
        "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey410_price.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, PROPULSION, codes A *1 1ZJ0 and A *1 1XD0",
        "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410."
      },
      {
        "id": "js-so415-inventory",
        "title": "Jeanneau Sun Odyssey 415 original equipment inventory, May/June 2025",
        "url": "https://www.sea-ventures.co.uk/wp-content/uploads/2025/06/415-specification.pdf",
        "kind": "manufacturer-specification",
        "locator": "Engine section, Standard; document updated May 2025",
        "evidence": "The manufacturer's inventory, hosted by Jeanneau dealer Sea Ventures, explicitly names standard Yanmar 4JH45 Common Rail shaft drive, 45 hp / 33 kW."
      },
      {
        "id": "js-so419-williams",
        "title": "Williams & Smithells: 2018 Sun Odyssey 419",
        "url": "https://www.williamsandsmithells.com/boats/jeanneau-sun-odyssey-419/",
        "kind": "documented-vessel-example",
        "locator": "Key Information, Construction and Machinery",
        "evidence": "The original broker listing identifies a 2018 Sun Odyssey 419 with a Yanmar 4JH45 rated 45 hp and saildrive."
      },
      {
        "id": "js-so439-nyb",
        "title": "Network Yacht Brokers Lefkas: 2013 Sun Odyssey 439 Tallulah Ruby",
        "url": "https://www.yachtworld.com/yacht/2013-jeanneau-sun-odyssey-439-10256294/",
        "kind": "documented-vessel-example",
        "locator": "Full Specification, CONSTRUCTION and MECHANICAL; original selling-broker listing hosted on YachtWorld",
        "evidence": "The broker identifies the 2013 Sun Odyssey 439 Performance Tallulah Ruby and explicitly lists Yanmar 4JH5-CE, 54 hp, with saildrive in its mechanical specification."
      },
      {
        "id": "js-so439-annapolis",
        "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 439",
        "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-439-43-10249316",
        "kind": "documented-vessel-example",
        "locator": "Engine and Saildrive",
        "evidence": "The broker's 2015 Sun Odyssey 439 example explicitly lists Yanmar 4JH5E, 54 hp, mechanical fuel injection, separately from the Yanmar SD-60 saildrive."
      },
      {
        "id": "js-so440-price",
        "title": "Jeanneau Sun Odyssey 440 manufacturer price list, B2025 January 2025",
        "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey440_price.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, PROPULSION, codes A *1 1XD0 and A *1 1XA0",
        "evidence": "The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440."
      },
      {
        "id": "js-so449-zosca",
        "title": "Zosca Sailing: 2017 Sun Odyssey 449 Zosca",
        "url": "https://www.zoscasailing.com/details/",
        "kind": "documented-vessel-example",
        "locator": "Zosca Layout, Specifications, and Equipments; Layout and Specs, Engine",
        "evidence": "The sailing operator identifies Zosca as a 2017 Sun Odyssey 449 and explicitly names Yanmar 4JH57."
      },
      {
        "id": "js-so455-ac",
        "title": "A&C Yacht Brokers: new-generation Sun Odyssey 455",
        "url": "https://www.bateaux-antilles.fr/bateaux-neufs/jeanneau/sun-odyssey-455.html",
        "kind": "authorized-dealer-specification",
        "locator": "Voiles, motorisation et reservoirs",
        "evidence": "The Jeanneau dealer explicitly lists Yanmar 4JH57CR, 57 CV, saildrive for the new Sun Odyssey 455."
      },
      {
        "id": "js-so469-clarke",
        "title": "Clarke & Carter: 2013-built Sun Odyssey 469, commissioned 2014",
        "url": "https://www.clarkeandcarter.co.uk/2013-jeanneau-sun-odyssey-469/",
        "kind": "documented-vessel-example",
        "locator": "Basic Boat Information; Mechanical Systems; Construction",
        "evidence": "The broker specifies Yanmar 4JH5-CE 54 hp with saildrive and explains that this boat was built in November 2013 and first commissioned in 2014."
      },
      {
        "id": "js-so479-denison",
        "title": "Denison Yachting: 2018 Sun Odyssey 479 Victory",
        "url": "https://www.yachtworld.com/yacht/2018-jeanneau-sun-odyssey-479-10127959/",
        "kind": "documented-vessel-example",
        "locator": "Seller description and Propulsion; original selling-broker listing hosted on YachtWorld",
        "evidence": "Denison's listing identifies the 2018 Horizon Edition Sun Odyssey 479 Victory and a Yanmar 4JH57 rated 57 hp."
      },
      {
        "id": "js-so479-vacanze",
        "title": "Vacanzeavela: Sun Odyssey 479, 2016 sales inventory",
        "url": "https://www.vacanzeavela.it/pages/occasioni2.asp?Id=1",
        "kind": "documented-vessel-example",
        "locator": "Occasioni table, SUN ODYSSEY 479 row",
        "evidence": "The charter operator/broker's own inventory explicitly lists a 2016 Sun Odyssey 479 with Yanmar 4JH5-CE, 54 CV. This is not evidence that the 2018 4JH57 example is wrong."
      },
      {
        "id": "js-so490-price",
        "title": "Jeanneau Sun Odyssey 490 manufacturer price list, B2025 January 2025",
        "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey490_price.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, PROPULSION, codes A *1 1XA1 and A *1 1XB1",
        "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages."
      },
      {
        "id": "js-so509-inventory",
        "title": "Jeanneau Sun Odyssey 509 preliminary standard inventory, July 2011",
        "url": "https://www.mottemarine.fr/images/pic_bateaux/2011/d754_inventaire_sunodyssey509.pdf",
        "kind": "manufacturer-specification",
        "locator": "EQUIPEMENT STANDARD, MOTORISATION; July 2011 footer",
        "evidence": "The original Jeanneau inventory explicitly names standard Yanmar 4JH4-TCE Sail-Drive, 75 hp / 55 kW."
      },
      {
        "id": "js-so519-bottega",
        "title": "La Bottega del Mare: 2018 Sun Odyssey 519",
        "url": "https://www.labottegadelmare.com/barche-toscana/vendita-barche-usate/2018-Jeanneau-Sun_Odyssey_519-EN.pdf",
        "kind": "documented-vessel-example",
        "locator": "Page 2, Boat Details and Information & Features",
        "evidence": "The broker's vessel PDF identifies a 2018 Sun Odyssey 519 with one 2018 Yanmar 4JH80 rated 80 hp and saildrive."
      },
      {
        "id": "js-so455-inventory",
        "title": "Jeanneau Sun Odyssey 455 original equipment inventory, December 2025",
        "url": "https://www.bateaux-antilles.fr/sites/www.bateaux-antilles.fr/files/documentation/other/21348/2025-0067-prprintinvvoileso455fr12-25.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 3, I MOTORISATION, Standard and Options",
        "evidence": "Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW."
      },
      {
        "id": "js-so350-inventory",
        "title": "Jeanneau Sun Odyssey 350 original equipment inventory, December 2023",
        "url": "https://www.locasail.com/uploads/files/url-t-site1media-5994.pdf",
        "kind": "manufacturer-specification",
        "locator": "Page 1, I TECHNIQUE, Motorisation; compare page 3, I MOTORISATION",
        "evidence": "The page-1 standard engine is explicitly Yanmar 3YM30AE, 29 CV / 21 kW. Page 3 inconsistently prints 3YM20 with the same rating, so it is not accepted as a second installation. The 6 kW Torqeedo option has no exact model identifier."
      },
      {
        "title": "Nanni N5 CR2 Operator Manual, initial May 2019, exact N5.230CR2 data sheet DFRGBT02029",
        "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXT09013_N5.CR2_Small.pdf#page=100",
        "kind": "manufacturer-document",
        "sha256": "d861aec1454bb902ff3975710e6dc5b6eaf501c206ed94e2aeeafb41061bec4a",
        "page": 100,
        "edition": "DGBXXT09013, initial 05/2019; cover DGBXXT090013; exact appendix DFRGBT02029, ISO 3046",
        "locator": "PDF page 100, FUEL SYSTEM, Fuel consumption propeller load exp.3, l/h row; exact identity and 2600 RPM page 99; M4/ISO 3046 page 102",
        "evidence": "Nine original RPM/L/h pairs, 1000-2600 RPM, explicitly labelled propeller-load exponent 3. Separate full-load and US-gallon rows are not substituted. Exact 168 kW / 2600 RPM N5.230 CR2, John Deere 4.5 L common rail, 16.7:1. Source edition retained; no rescaling to a vessel's 230 hp label or later-calibration equivalence claimed.",
        "access": "Manufacturer-hosted original downloaded privately, SHA-256 verified; complete relevant pages rendered and visually inspected; independent PDF-cell extraction exactly matched all nine copied L/h values.",
        "id": "fuel-rating-review_nanni_n5230cr2_2019-369"
      },
      {
        "title": "Yanmar 3JH5E Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH5_A4_022021_HR.pdf",
        "sha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
        "page": 2,
        "edition": "DS_3JH5E_A4_022021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_3jh5_family-370"
      },
      {
        "title": "Volvo Penta MD2020 manufacturer product bulletin, April 2004",
        "url": "https://legacy.marinepartsexpress.com/prodbull05/md2020.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 2: Technical Data and calculated-load power diagram",
        "evidence": "Manufacturer bulletin gives 13.8 kW at the crankshaft, 13.3 kW at the shaft and a 3200-3600 RPM full-throttle range. Its power-load diagram uses exponent 3.0; it is not a fuel-use table.",
        "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026.",
        "id": "fuel-rating-volvo_md2020-371"
      },
      {
        "title": "Volvo Penta MD2030 manufacturer product bulletin, April 2004",
        "url": "https://legacy.marinepartsexpress.com/prodbull05/md2030.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 2: Technical Data and calculated-load power diagram",
        "evidence": "Manufacturer bulletin gives 20.9 kW crankshaft output, 20.2 kW shaft output and a 3200-3600 RPM full-throttle range. The diagram is calculated load with exponent 3.0, not measured consumption.",
        "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026.",
        "id": "fuel-rating-volvo_md2030-372"
      },
      {
        "title": "Volvo Penta MD2010/2020/2030/2040 operator manual 7744509",
        "url": "https://sundet.dk/wp-content/uploads/2025/12/Motor-Volvo-Penta-Operators-manual-7744509_EN.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF pages 22 and 55: WOT range and Technical Data",
        "evidence": "Technical Data explicitly lists MD2030-D and 850 +/-25 RPM idle; power is referred to sales literature. The operation section gives the MD2010-2040 range as 3200-3600 RPM. The contemporary product bulletin supplies the power rating; this is not a separate measured D-version fuel curve.",
        "access": "Original manufacturer manual on sailing-club archive, PDF text retrieved; a later image request encountered host verification.",
        "id": "fuel-rating-volvo_md2030d-373"
      },
      {
        "title": "Volvo Penta D1-20 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709035",
        "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-volvo_d1_20b-374"
      },
      {
        "title": "Volvo Penta D1-30 Product Bulletin",
        "model": "D1-30",
        "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
        "sha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
        "page": 1,
        "edition": "English 09-2007",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-volvo_d1_30b-375"
      },
      {
        "title": "Volvo Penta D2-40 Product Bulletin",
        "model": "D2-40",
        "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
        "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
        "page": 1,
        "edition": "English 09-2007",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-volvo_d2_40b-376"
      },
      {
        "title": "Volvo Penta D2-75 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709063",
        "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-volvo_d2_75b-377"
      },
      {
        "title": "Yanmar 4JH4-HTE Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf",
        "sha256": "cd06ba6f6e74f863c216282ce062d574ea5343fceef4d8d03c399ced291bfc5a",
        "page": 2,
        "edition": "DS_4JH4-HTE_A4_052022",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-yanmar_4jh4_hte-378"
      },
      {
        "title": "Yanmar 3YM30AE Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf",
        "sha256": "15d3b164a1d70062695c4c7b77c69402046ae8fc004cd655b87391e4635b4c2a",
        "page": 2,
        "edition": "DS_3YM30AE_A4_082022",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-yanmar_3ym30ae-379"
      },
      {
        "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
        "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
        "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-volvo_d3_110-380"
      },
      {
        "title": "Volvo Penta D2-50 product specification",
        "url": "https://pubs.volvopenta.com/publications/47710130",
        "sha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_volvopenta_d250f-381"
      },
      {
        "title": "Volvo Penta D2-55 product specification, English 07-2013",
        "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
        "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
        "page": 1,
        "edition": "English 07-2013",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_volvopenta_d255f-382"
      },
      {
        "title": "Volvo Penta D2-60 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709927",
        "sha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_volvopenta_d260f-383"
      },
      {
        "title": "Volvo Penta MD2040 product bulletin, 04-2004",
        "url": "https://legacy.marinepartsexpress.com/prodbull05/md2040.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 2, Technical Data: crankshaft output / full-throttle operating speed.",
        "evidence": "MD2040: 29.1 kW crankshaft, 28.3 kW shaft, 3200-3600 RPM full-throttle range. Power-load diagram is not a numeric fuel table.",
        "access": "Original manufacturer bulletin on Marine Parts Express dealer archive; web PDF extraction reviewed.",
        "id": "fuel-rating-review_volvopenta_md2040-384"
      },
      {
        "title": "Volvo Penta Inboard Diesel D3-170,200,220",
        "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d3-220-d3-220.pdf",
        "sha256": "a8cd79187b3c2d990738cb65ae7f076ee28a4d18d91517caaf66fb8590d4cf6c",
        "page": 1,
        "edition": "English 07-2013; copyright 2013 AB Volvo Penta, printed on page 2",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_volvopenta_d3220-385"
      },
      {
        "title": "Volvo Penta Inboard Diesel D4-175/230, English 05-2021",
        "url": "https://irp.cdn-website.com/dca030c4/files/uploaded/D4-175_230_v1.pdf",
        "sha256": "2c560c2eafde28e363997d65db6c025e91391f965c1d49240f2fbf84c3967b04",
        "page": 1,
        "edition": "English 05-2021",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_volvopenta_d4175-386"
      },
      {
        "title": "Volvo Penta D4-180 I Technical Data 21954790, issue 01, 2012-08-21",
        "url": "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 1: R4, 132 kW, rated speed 2800 RPM. PDF page 2: Fuel system, RPM columns 1000/1500/2000/2500/2800, l/h row Fuel consumption at prop. load x 3.",
        "evidence": "Cubic-load row: 2.3/5.7/12.5/24.3/34.7 L/h. The distinct exponent-2.5 row is 3.3/7.4/14.6/25.6/34.7. Neither is a boat trial.",
        "access": "Original manufacturer technical sheet mirrored by DB Moteurs. PDF text extracted; complete page 2 rendered in memory and visually inspected for rows, units, edition and column alignment.",
        "sha256": "dbf6dbb024a91f32f47fee79907d7c6da9752eae9a33cb097e36d13c6abc49d4",
        "id": "fuel-rating-review_volvopenta_d4180-387"
      },
      {
        "title": "Volvo Penta Technical Data D4-180, undated 64070S03(1).xls export",
        "url": "https://sermakpower.com/brosur/keyif-tekne/t_d4_180.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 2, Fuel system, cubic propeller-load l/h row under RPM 1000/1500/2000/2500/2800.",
        "evidence": "Older sheet gives 2.0/5.4/12.5/23.5/33.7 L/h, differing from issue 01 dated 2012. Its precise printed edition is absent; not selected as the primary curve.",
        "access": "Original manufacturer sheet on Sermak Power mirror; direct in-memory PDF extraction and hash. Metadata creation 2005-11-30 and modification 2008-12-05 are file dates, not asserted publication dates.",
        "sha256": "a6deb81831deac18bbd7826f7851397cb69e99155256574e0b4fc2006c33bb83",
        "id": "fuel-rating-review_volvopenta_d4180-388"
      },
      {
        "title": "Volvo Penta Inboard Diesel D4-180",
        "url": "https://navaboats.com/wp-content/uploads/2022/11/D4-180.pdf",
        "sha256": "2f350fea83cb7e5815f63e47c2ceee22f062ee213a3974f2261f68208b8f4517",
        "page": 1,
        "edition": "English 12-2016; copyright 2016 AB Volvo Penta, printed on page 2",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_volvopenta_d4180if-389"
      },
      {
        "title": "YANMAR 4LV230/4LV250 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV230-250_A4_2021_1018_HR.pdf",
        "sha256": "43337d7361c998bb8bc21f2219919cd6c681a012e9a049c696a7ee15701cb41f",
        "page": 2,
        "edition": "DS_4LV230/250_A4_102021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_4lv250-390"
      },
      {
        "title": "YANMAR 6BY3-160 Fuel consumption (load exp. 2.5), official product-page graph",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/06/6BY3-160_fuel_curve.jpg",
        "sha256": "8ac255024d84ed4471b87e6dce738148f93ac3003be9299e5dcce0f63ee25c82",
        "format": "manufacturer-image",
        "mediaType": "image/jpeg",
        "page": null,
        "edition": "Undated original manufacturer image; accessed 2026-10-18. Upload URL is not treated as publication date.",
        "productUrl": "https://www.yanmar.com/marine/product/engines/6by3-160/",
        "specificationUrl": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-6BY3-160-Datasheet.pdf",
        "locator": "Original manufacturer hourly fuel graph image",
        "id": "fuel-rating-review_yanmar_6by3160-391"
      },
      {
        "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
        "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "page": 2,
        "edition": "DS_4LV150/170/195_A4_122021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_4lv150-392"
      },
      {
        "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
        "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "page": 2,
        "edition": "DS_4JH45/57_A4_01292021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_4jh45cr-393"
      },
      {
        "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
        "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
        "page": 2,
        "edition": "DS_4JH80/110_A4_052022",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_4jh80cr-394"
      },
      {
        "title": "YANMAR 6LY400/6LY440 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2025/10/6LY400-440_DS_A4_2026_0413-HR.pdf",
        "sha256": "2e1d15dc2ea875e75c579c4b335eac065ecb9ec0d14c99a5d1085810c7be98c8",
        "page": 2,
        "edition": "DS_6LY400/440_A4_04-2026",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_6ly400-395"
      },
      {
        "title": "Nanni Product Guide, DGBXXC03001K 012024",
        "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
        "kind": "manufacturer-document",
        "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
        "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
        "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
        "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved.",
        "id": "fuel-rating-review_nanni_n450-396"
      },
      {
        "title": "Nanni N4.50 propulsion-engine leaflet, DGBXXC01007",
        "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXC01007-N4.50.pdf",
        "kind": "manufacturer-document",
        "edition": "DGBXXC01007; no issue date established",
        "locator": "PDF page 1: Power at crankshaft, Rated speed and Idling speed; page 2: heading and document code",
        "evidence": "Exact N4.50: crankshaft 35.42 kW [47.5 hp], rated 2800 RPM, idle 840 RPM, Kubota base and mechanical indirect injection. Page 2 has graphical fuel curves, not a numeric RPM/l/h table. The printed 35.42/47.5 pair is preserved without recomputing horsepower.",
        "access": "Manufacturer-hosted PDF opened and text extracted; specification page rendered and visually inspected in memory on 2026-10-17.",
        "id": "fuel-rating-review_nanni_n450-397"
      },
      {
        "title": "Nanni N4.40/N4.43HD/N4.47MD/N4.50 German operator manual, 012014.IndB",
        "url": "https://nannienergy.com/wp-content/uploads/2023/08/Manuel-N4.40-N4.50-DEU-1.pdf",
        "kind": "manufacturer-document",
        "edition": "012014.IndB, printed on final PDF page 67",
        "locator": "PDF page 64 / printed 61, Technical Data: N4.50 column and shared rated-speed row",
        "evidence": "N4.50 column prints maximum 36.8 kW / 50 PS; the rated-speed row is 2800 RPM. This differs from the later guide and DGBXXC01007 leaflet. The documents do not establish a serial-number or generation changeover.",
        "access": "Manufacturer-hosted PDF opened and text extracted; technical-data page rendered and visually inspected in memory on 2026-10-17.",
        "id": "fuel-rating-review_nanni_n450-398"
      },
      {
        "title": "Nanni N4.65 propulsion-engine leaflet, DGBXXC01008B",
        "url": "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01008B_N4.65-2.pdf",
        "kind": "manufacturer-document",
        "edition": "DGBXXC01008B; no issue date established",
        "locator": "PDF page 1: specification rows; page 2: heading, fuel-system description and document code",
        "evidence": "Exact N4.65: crankshaft 43.4 kW [59 hp], rated 2700 RPM, idle 850 RPM. Kubota 2.434-litre turbocharged diesel with mechanical indirect injection. Page 2 specifies indirect E-TVCS and two valves per cylinder. The model number does not mean 65 hp.",
        "access": "PDF linked directly by the manufacturer's N4.65 product page; opened, text extracted and specification page rendered and visually inspected in memory on 2026-10-17.",
        "id": "fuel-rating-review_nanni_n465-399"
      },
      {
        "title": "Nanni N4.65 original leaflet, 20170102C ENG, distributor-hosted copy",
        "url": "https://nannidiesel.eu/wp-content/uploads/2017/08/N4.65-ENG.pdf",
        "kind": "manufacturer-document",
        "edition": "20170102C ENG",
        "locator": "PDF page 1 specification table versus PDF page 2 Technical Description",
        "evidence": "Page 1 identifies crankshaft 43.4 kW / 59 hp at rated 2700 RPM and indirect E-TVCS. Page 2 instead describes common rail, four valves per cylinder and DOHC. This is internally inconsistent; do not infer an additional generation or import those fuel-system claims into the selected reference.",
        "access": "Original Nanni-branded leaflet mirrored by Nanni regional distributor site; full PDF text opened on 2026-10-17. Used to preserve a conflict, not as the selected technical-identity source.",
        "id": "fuel-rating-review_nanni_n465-400"
      },
      {
        "title": "Nanni N4.115 propulsion-engine leaflet, DGBXXC01010B",
        "url": "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01010B_N4.115-2.pdf",
        "kind": "manufacturer-document",
        "edition": "DGBXXC01010B; no issue date established",
        "locator": "PDF page 1: Power at crankshaft, Rated speed, Idling speed and fuel-system rows; page 2: document code",
        "evidence": "Exact unsuffixed N4.115: crankshaft 84.6 kW [115 hp], rated 2600 RPM, idle 825 RPM. Kubota 3.769-litre turbo/intercooled diesel with mechanical direct injection; M4. No equivalence to N4.115 E is assumed.",
        "access": "Manufacturer-hosted PDF opened; full specification page and graphical-curve text extracted on 2026-10-17. No numerical points read from its charts.",
        "id": "fuel-rating-review_nanni_n4115-401"
      },
      {
        "title": "Nanni marine engine Brochure N3.30, original manufacturer brochure with Nanni Diesel Australia contact block",
        "url": "https://www.nannidiesel.com.au/wp-content/uploads/2019/01/Brochure-N3.30.pdf",
        "sha256": "3572cc5afcebbc88c8c6adaa36ac918d1f3692dbad7b63ccba345f9b30ef3b3e",
        "page": 2,
        "edition": "150715-ENG, printed on page 2; not dated from hosting directory",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_nanni_n330-402"
      },
      {
        "title": "MAN Engines - High speed engines for pleasure boats - Marine",
        "url": "https://www.ariexpo.gr/images/user/Marine/Engines/Marine_Pleasure_EN_180607_MAN.pdf",
        "sha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
        "page": 19,
        "edition": "D 114.632 - wd 07213",
        "issueDate": null,
        "issueDateNote": "Printed issue date not established. Neither the URL's 180607 nor PDF metadata is treated as an issue date.",
        "locator": "PDF page 19, fuel consumption graph",
        "id": "fuel-rating-review_man_i6730-403"
      },
      {
        "title": "John Deere PowerTech 6.8 L Engine - Engine Performance Curve 6068TFM50225M4, May 2001",
        "url": "https://aksaeurope.com/Content/Front/images/marin/168kW-2600rpm.pdf#page=2",
        "kind": "manufacturer-document",
        "sha256": "970f60497fbcea9730f6b1a55d0ede7698da86f5eb88a5a49a6090d6badc665a",
        "page": 2,
        "edition": "May 2001; certified 21 May 2001; curve 6068TFM50225M4",
        "locator": "PDF page 2, Fuel Consumption for Typical Propeller Curve, Prop Fuel gal/hr(L/hr); M4 identity on page 1",
        "evidence": "Eleven printed RPM / L/hr rows, 1000-2600 RPM, copied exactly without converting rounded gallon values. M4 168 kW / 2600 RPM; option 16FA/16FB; keel-cooled basis. The 44.3 L/h propeller-load endpoint is distinct from the separate 46.8 L/h Fuel System field in this same sheet.",
        "access": "Original manufacturer-authored PDF on engine-dealer mirror, privately recovered and full pages visually reviewed 2026-10-18.",
        "id": "fuel-rating-review_johndeere_powertech6068tfm50-404"
      },
      {
        "title": "John Deere PowerTech 6068TFM50 Marine Propulsion Engine Specifications, April 2017",
        "url": "https://www.deere.ca/assets/pdfs/common/industries/engines-and-drivetrain/specsheets/6068tfm50_c.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 1, Engine Specifications, M4 row; page 2, M-rating limits and 17-04 publication footer",
        "evidence": "M4 explicitly pairs 168 kW / 225 bhp with 2600 RPM and 46.8 L/h rated fuel consumption. M4 typical full-power operation is one hour in twelve. The M2 row has a different rating and must not be used as an M4 curve.",
        "access": "PDF linked by the current John Deere 6068TFM50 product page, retrieved and parsed on 2026-10-17.",
        "id": "fuel-rating-review_johndeere_powertech6068tfm50-405"
      },
      {
        "title": "John Deere 6068TFM50 Marine Propulsion Engine",
        "url": "https://www.deere.ca/en/marine-engines/propulsion/powertech-6-8l-6068tfm50/",
        "kind": "manufacturer-document",
        "locator": "Engine Specifications: M4 row",
        "evidence": "Current manufacturer page corroborates 168 kW, 2600 RPM and rated fuel consumption 46.8 L/h for the M4 rating.",
        "access": "Full manufacturer page retrieved on 2026-10-17.",
        "id": "fuel-rating-review_johndeere_powertech6068tfm50-406"
      },
      {
        "title": "John Deere Marine Engines brochure DSWC20",
        "url": "https://www.deere.com/assets/pdfs/common/industries/engines-and-drivetrain/brochures/marine-engines-brochure-dswc20.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 5 (zero-based 4), 6068TFM50 M4 row",
        "evidence": "Separate manufacturer brochure prints 168 kW, 2600 RPM and 44.3 L/h for M4. The 44.3/46.8 L/h publication discrepancy is retained; no serial-number or calibration changeover was established.",
        "access": "Manufacturer-hosted PDF table retrieved on 2026-10-17; conflicting value not averaged.",
        "id": "fuel-rating-review_johndeere_powertech6068tfm50-407"
      },
      {
        "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
        "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
        "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
        "page": 1,
        "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_4jh3hte-408"
      },
      {
        "title": "Yanmar type 4JH4E - The Powerful Gem",
        "url": "https://irp.cdn-website.com/76471e1f/files/uploaded/4JH4E_%2854hp%29TechData.pdf",
        "kind": "manufacturer-document",
        "provenance": "Original Yanmar-branded two-page brochure on a third-party CDN mirror; publication date not established.",
        "locator": "PDF page 1: Maximum output at crankshaft, continuous rating and the two fuel-temperature footnotes.",
        "evidence": "Maximum crankshaft power is 40.5 kW/3000 RPM at 25 C under ISO 3046-1, or 39.6/3000 at 40 C under ISO 8665. Continuous power is 36.8/2907. These are documented rating-condition alternatives, not suffix equivalence inferred from horsepower.",
        "access": "HTTP 200 PDF downloaded into memory; specification text extracted and corroborated with Yanmar service-manual reproduction.",
        "sha256": "629a68c60d73a4d58fdc8a7fe897de24e695d8783a03443cb286974fb551bd6c",
        "id": "fuel-rating-review_yanmar_4jh4e-409"
      },
      {
        "title": "Yanmar 4JH5E Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH5E_A4_022021_HR.pdf",
        "sha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
        "page": 2,
        "edition": "DS_4JH5E_A4_022021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_4jh5e-410"
      },
      {
        "title": "Yanmar 4JH4-TE Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-TE_A4_052022_HR.pdf",
        "sha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
        "page": 2,
        "edition": "DS_4JH4-TE_A4_052022",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_4jh4te-411"
      },
      {
        "title": "Yanmar GM series manufacturer brochure, The Auxiliary Engine of Choice",
        "url": "https://www.simplicity-marine.com/pdf/Yanmar/123%20GM%20INBOARD.pdf",
        "sha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
        "page": 2,
        "edition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-rating-review_yanmar_3gm30f-412"
      },
      {
        "title": "Yanmar Saildrive SD50 brochure, 2005",
        "url": "https://www.lsm-diesel.dk/2012/yanmar/tekn_data_pdf/sd-50_techdata.pdf",
        "kind": "manufacturer-document",
        "provenance": "Original four-page Yanmar brochure mirrored by LSM Diesel; page 4 copyright is 2005.",
        "locator": "PDF pages 2-3: shared specification-row labels and 4JH4CE x SD50 column; page 2 rating footnotes.",
        "evidence": "4JH4CE is explicitly named with SD50. Crankshaft maxima are 40.5 kW/3000 RPM at 25 C and 39.6/3000 at 40 C; continuous 36.8/2907. This old brochure's separate 4JH3-TCE column is not the later 4JH4-TCE model.",
        "access": "HTTP 200; complete PDF extracted in memory; PDF page 3 rendered and visually inspected.",
        "id": "fuel-rating-review_yanmar_4jh4ce-413"
      },
      {
        "title": "Yanmar Service Manual M9961-03E091, February 2004",
        "url": "https://www.manualslib.com/manual/3848325/Yanmar-4jh4ce.html?page=18",
        "kind": "manufacturer-document",
        "provenance": "Manufacturer service-manual pages reproduced by ManualsLib; revision history identifies the February 2004 new edition.",
        "locator": "Reproduction page 18, section 1.2(2), original printed page 3; official/internal model and marine-gear rows.",
        "evidence": "The 4JH4E series explicitly includes internal model 4JH4CE with SD40. The table separates crankshaft fuel-stop power from lower propeller-shaft power. The CE code is manufacturer-documented, not obtained by deleting letters.",
        "access": "Manufacturer table read through indexed page text. Column alignment independently corroborated by the original SD50 brochure's explicitly named 4JH4CE column.",
        "id": "fuel-rating-review_yanmar_4jh4ce-414"
      },
      {
        "title": "Volvo Penta D3-110 I Technical Data, document 21990131, issue 01, 2012-06-26",
        "url": "https://www.dbmoteurs.fr/sites/default/files/t_d3_110_i_f_g--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 1: General, Rated speed R5; Performance, crankshaft kW at 3000 RPM; footer. PDF page 2: Fuel system, exponent-2.5 propeller-load and full-load l/h rows.",
        "evidence": "Printed model D3-110 I; R5; 81 kW at 3000 RPM. Numeric propeller-load fuel values are present at nine speeds through 3000 RPM. The full-load row is separate and extends to 3130 RPM. The filename's f_g text is not a printed suffix-applicability declaration.",
        "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta technical sheet on DB Moteurs mirror; all three pages extracted and pages 1-2 rendered in memory and visually inspected for columns, units, load and date.",
        "sha256": "907c21d79266e4b580f47fd2ecf9a708469f750caaf3e6d4654ffa5b5e20377d",
        "id": "fuel-rating-review_volvo_d3110i_table-415"
      },
      {
        "title": "Volvo Penta D3-110 I Technical Data, document 21760197, issue 01, 2011-06-14",
        "url": "https://sermakpower.com/brosur/keyif-tekne/t_d3_110.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 1: R5 rated speed, crankshaft power and footer. PDF page 2: Fuel system, exponent-2.5 propeller-load l/h row.",
        "evidence": "Earlier D3-110 I sheet also pairs 81 kW with 3000 RPM, but its numeric propeller-load fuel row differs from the 2012 edition. Preserve it as an alternative publication, not extra points to splice into the selected row.",
        "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta sheet on Sermak Power mirror; page 1 extracted and page 2 fuel-table area rendered in memory and visually checked.",
        "sha256": "85c5c34efe2d664cde8989a3a96d1e73b90f02a6eace07693f9a83b94187793e",
        "id": "fuel-rating-review_volvo_d3110i_table-416"
      },
      {
        "title": "Volvo Penta D3 French operator manual 47702806, 06-2013",
        "url": "https://manualzilla.com/doc/6385253/manuel-d-instructions",
        "kind": "manufacturer-document",
        "locator": "Printed page 139: Technical Data, D3-110i sales designation / D3-110i-G aftermarket designation, crankshaft and propeller-shaft columns.",
        "evidence": "Exact G row prints 82 kW crankshaft and 79 kW shaft. This table gives no model-specific rated RPM. It does not establish an exact G 82-kW/3000-RPM pair or resolve the difference from the nominal 81-kW D3-110 I technical sheets.",
        "access": "Original manufacturer manual reproduced as public HTML by Manualzilla; technical-data row and edition footer rechecked on 2026-10-17. No claim of new direct PDF retrieval.",
        "id": "fuel-rating-review_volvo_d3110i_table-417"
      },
      {
        "title": "Volvo Penta Inboard Performance System D6-IPS 400/450/500/600/650, English 12-2019",
        "url": "https://vp-service.dk/wp-content/uploads/2024/02/297_47711958-en-d6-400-450-500-600-650-5.pdf",
        "sha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70",
        "page": 1,
        "edition": "English 12-2019",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-rating-review_volvo_d6ips400-418"
      },
      {
        "title": "Volkswagen Marine, Engines for Blue Water Craft, BlueWater_e_09.qxd, November 2009",
        "url": "https://expydoc.com/doc/3339812/engines-for-blue-water-craft",
        "kind": "manufacturer-document",
        "locator": "Printed page 2, TDI 140-5 BW model panel; printed page 5, Specifications, TDI 140-5 BW column; transcript lines 81-136 and 199-274.",
        "evidence": "The named BW variant pairs 103 kW / 140 hp with 3500 RPM, also repeated in the ISO 3046 specification table. Minimum specific fuel consumption is 203 g/kWh, without its RPM/load. The brochure describes BW-specific electronic mapping. No numeric RPM/L/h table or rated-power L/h endpoint was found in this transcript.",
        "access": "Manufacturer-authored brochure read through a public third-party transcript on 2026-10-17, not a current manufacturer-hosted PDF. The download link returned 403 Forbidden. Text transcription and original-page image fidelity could not be independently compared. No values were read from plotted curves.",
        "id": "fuel-rating-review_vw_tdi1405bw-419"
      },
      {
        "title": "Yanmar 2YM15 Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_2YM15_A4_022021_HR.pdf",
        "sha256": "915fb11655bc70dee066f3c84fa54955b279fb993b7fee80204c7a2010e7b372",
        "page": 2,
        "edition": "DS_2YM15_A4_022021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-graph-yanmar_2ym15"
      },
      {
        "title": "Yanmar 3YM20 Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3YM20_A4_022021_HR.pdf",
        "sha256": "2824549c9c964cf0c73663023b0a69a19d579248f00bf82386b0321fdca63fdd",
        "page": 2,
        "edition": "DS_3YM20_A4_022021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-graph-yanmar_3ym20"
      },
      {
        "title": "Yanmar 3YM30 Marine Installation Manual Volume 2 - Performance Curves",
        "url": "https://www.maritimepropulsion.com/files/pdf/1001374",
        "sha256": "acef7cfdfa601fafdfad24942b1d14f3ab3b3c94b67023867cebb85021f1be10",
        "page": 15,
        "edition": "JUN 2006 (Rev. 1), printed 3YM30-15, Figure 10",
        "locator": "PDF page 15, fuel consumption graph",
        "id": "fuel-graph-yanmar_3ym30"
      },
      {
        "title": "YANMAR 3JH40 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH40_A4_022021_HR.pdf",
        "sha256": "96b24c528a309da34d2aff864ce7acca14942d1b480f091a304e4bd8b755ce5b",
        "page": 2,
        "edition": "DS_3JH40_A4_022021",
        "locator": "PDF page 2, fuel consumption graph",
        "id": "fuel-graph-yanmar_3jh40"
      },
      {
        "title": "Volvo Penta D1-13 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709028",
        "sha256": "dffb7b295135c8bb99abe02f38393f6c3bbc25cb76d38cc42fd038ffa7d23282",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-graph-volvo_d1_13"
      },
      {
        "title": "Volvo Penta D1-30 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709042",
        "sha256": "d32077e98cf588ac4ce35c1face110ffe8c197e346a941fefa0a770befdd6e34",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph",
        "id": "fuel-graph-volvo_d1_30"
      },
      {
        "title": "Nanni application service manager interview, 23 October 2023",
        "url": "https://nannienergy.com/nannis-profiles-patrice-hugot-application-service-manager/",
        "kind": "manufacturer-document",
        "locator": "Interview, Lagoon engine example",
        "evidence": "Nanni's application manager identifies the Lagoon installation as an N5 based on John Deere. Family evidence only, not exact suffix or hull identification.",
        "access": "Manufacturer's original article retrieved and relevant passage inspected on 2026-10-18.",
        "id": "family-followup-nanni-n5-lagoon-family"
      },
      {
        "title": "Marinec/Seacomm: Lagoon Seventy 7 installation with two Nanni N5.230 CR2",
        "url": "https://seacomm.ru/solutions/novyy-katamaran-lagoon-seventy-7-s-2-mya-sudovymi-dizelyami-nanni-n5-230-cr2/",
        "kind": "engine-dealer-installation",
        "locator": "Original installation article, engine model and technical summary",
        "evidence": "Dealer explicitly names twin N5.230 CR2 on Seventy 7, 228 hp and 4.5 L. Undated; no identification as Manaia or proof of its calibration.",
        "access": "Dealer's own original article retrieved and exact engine/boat passage inspected on 2026-10-18.",
        "id": "family-followup-nanni-n5230cr2-lagoon-dealer"
      },
      {
        "title": "SRA Moteur: Volvo Penta D3-150 propulsion catalogue and hardware specification numbers",
        "url": "https://sra-moteur.com/fr/catalogue/1-moteurs/10-marine-commerciale/12-nouvelle-gamme/15-propulsion/247-d3-150",
        "kind": "engine-dealer-catalogue",
        "locator": "Technical table and Modeles / numeros de specifications",
        "evidence": "The dealer's D3-150 product record lists D3-150I-H specification number 40869574 alongside D/E/F/G variants, with base crankshaft rating 110 kW at 3000 RPM. This establishes an explicit family link, not identical H-suffix fuel calibration.",
        "access": "Dealer's own product page retrieved and full model/specification listing inspected on 2026-10-18.",
        "id": "family-followup-volvo-d3150-h-dealer"
      },
      {
        "title": "YANMAR JH Series Operation Manual, 0AJHM-EN0025, December 2019",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0AJHM-EN0025_2019.12.pdf",
        "kind": "manufacturer-document",
        "locator": "Specifications, printed page 98, 3JH5E / 3JH5AE Engines",
        "evidence": "Manufacturer groups 3JH5E and 3JH5AE together: crankshaft fuel-stop power 28.7 kW at 3000 RPM; continuous 26.1 kW at 2907 RPM. Engine output must not be confused with shaft output.",
        "access": "Manufacturer-hosted document; complete specification row retrieved through indexed PDF text on 2026-10-17.",
        "id": "family-yanmar-jh-manual-2019"
      },
      {
        "title": "YANMAR SD60 Operation Manual, 0ASDM-EN0023, May 2018",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0023_2018.05.pdf",
        "kind": "manufacturer-document",
        "locator": "Specifications, printed page 37 / PDF page 41, Applicable engine model rows",
        "evidence": "3JH5CE and 3JH5AE-C are explicitly listed at 28.7 kW / 3000 RPM, and 4JH57-C at 41.9 kW / 3000 RPM. This supports a family-level rating reference, not proof that every ACE/CE commercial label is a universal manufacturer alias or has identical boat fuel use.",
        "access": "Manufacturer-hosted PDF and model-specific indexed table retrieved on 2026-10-17.",
        "id": "family-yanmar-sd60-2018"
      },
      {
        "title": "YANMAR Marine International: 3JH5E",
        "url": "https://www.yanmar.com/marine/product/engines/3jh5e/",
        "kind": "manufacturer-document",
        "locator": "Specifications: rated output and rated speed",
        "evidence": "28.7 kW / 39 metric hp at 3000 RPM for the 3JH5E. No numeric RPM/L/h operating table is stated on the page.",
        "access": "Current manufacturer product page retrieved on 2026-10-17.",
        "id": "family-yanmar-3jh5e-product"
      }
    ],
    "engineReferenceReviewCount": 18,
    "additionalEngineReferenceReviewCount": 59,
    "additionalConsumptionReviewedOn": "2026-10-18",
    "engineFamilyPolicy": {
      "reviewedOn": "2026-10-18",
      "matchingPolicy": "User explicitly permits a representative reference for the same basic engine family rather than blocking on suffix spelling. Keep the reported installed label and the reference variant separately. This is an approximation policy, not a claim of identical manufacturer calibration. Known incompatible ratings are not silently merged; no automatic suffix stripping.",
      "matches": [
        {
          "brand": "Lagoon",
          "yachtModelId": 10100280,
          "setupId": "research-10100280-nanni-n5230-2",
          "reportedModel": "N5.230",
          "family": "N5.230",
          "referenceId": "review_nanni_n5230cr2_2019",
          "sourceIds": [
            "followup-nanni-n5230cr2-table",
            "followup-nanni-n5-lagoon-family",
            "followup-nanni-n5230cr2-lagoon-dealer"
          ],
          "note": "Representative N5.230 family reference using the exact initial-2019 N5.230 CR2 manufacturer numeric table, 168 kW / 2600 RPM, propeller-load exponent 3. A dealer documents twin CR2 on Seventy 7 and Nanni identifies the Lagoon N5/John Deere family; Manaia's own listing omits CR2. Exact installed suffix, serial number, calibration and applicability to every model year remain unconfirmed. The original 2023 vessel-only / 2019 catalogue caveat is unchanged. No rescaling to the vessel's 230 hp label or cross-edition blending. Both engines are included, not a measured Lagoon fuel test."
        },
        {
          "brand": "Sunreef",
          "yachtModelId": 7817754,
          "setupId": "research-7817754-volvopenta-d3150ih-2",
          "reportedModel": "D3-150I-H",
          "family": "D3-150",
          "referenceId": "review_volvopenta_d3150i",
          "sourceIds": [
            "followup-volvo-d3150-h-dealer",
            "followup-volvo-d3150-base-graph"
          ],
          "note": "Representative base-engine family reference: Volvo Penta D3-150 I, using the unchanged manufacturer 110 kW / 3000 RPM fuel graph, calculated propeller-load exponent 2.5. SRA explicitly includes D3-150I-H in this family. The vessel's H suffix remains in the research data; exact H calibration, serial-number applicability and equivalence to operator editions printing 111 kW are not established. No power-rescaling or averaging is used. The original 2023 vessel-only applicability remains unchanged. Both engines are included. Not measured Sunreef fuel use."
        },
        {
          "brand": "Lagoon",
          "yachtModelId": 115072,
          "setupId": "research-115072-yanmar-3jh5ace-2",
          "reportedModel": "3JH5ACE",
          "family": "3JH5",
          "referenceId": "review_yanmar_3jh5_family",
          "sourceIds": [
            "yanmar-jh-manual-2019",
            "yanmar-sd60-2018",
            "yanmar-3jh5e-product"
          ],
          "note": "Base-engine family reference: Yanmar 3JH5, using the digitized 3JH5E manufacturer fuel graph at 28.7 kW / 3000 RPM. The vessel source's 3JH5ACE spelling is retained in the research data. This is a representative base-engine curve, not an exact ACE calibration or a measured Lagoon fuel test. Both engines are included."
        },
        {
          "brand": "Fountaine Pajot",
          "yachtModelId": 59311624,
          "setupId": "research-59311624-yanmar-4jh57ce-2",
          "reportedModel": "4JH57-CE",
          "family": "4JH57",
          "referenceId": "yanmar_4jh57",
          "sourceIds": [
            "yanmar-sd60-2018"
          ],
          "note": "Base-engine family reference: Yanmar 4JH57, using its digitized manufacturer fuel graph at 41.9 kW / 3000 RPM. The maker also lists the saildrive 4JH57-C at that rating. The vessel's CE label is retained in the research data. This is a representative base-engine curve, not a measured FP44 test or confirmation of identical CE calibration. Both engines are included."
        },
        {
          "brand": "Dufour",
          "yachtModelId": 1179831,
          "setupId": "research-1179831-volvopenta-d3110ig-1",
          "reportedModel": "D3-110I-G",
          "family": "D3-110",
          "referenceId": "review_volvo_d3110i_table",
          "sourceIds": [
            "family-volvo-vp-d3-110-table-2012",
            "family-volvo-vp-d3-110-table-2011",
            "family-volvo-vp-d3-g-manual-2013"
          ],
          "note": "Base-engine family reference: Volvo Penta D3-110, using the published 2012 D3-110 I fuel table at load exponent 2.5. The vessel's I-G label is preserved in the research data. Its G manual prints 82 kW versus this reference's 81 kW; no correction or exact-suffix equivalence is claimed. This is not a measured Dufour fuel test."
        },
        {
          "brand": "Fountaine Pajot",
          "yachtModelId": 23569310,
          "setupId": "research-23569310-volvopenta-d6300-2",
          "reportedModel": "D6-300",
          "family": "D6-300 (IPS400)",
          "referenceId": "review_volvo_d6ips400",
          "sourceIds": [
            "family-volvo-vp-d6-ips-leaflet-2019"
          ],
          "note": "Base-engine family reference: the documented MY5 IPS400 / D6-300 label uses the digitized D6-IPS400 manufacturer fuel graph, 221 kW at 3300 RPM. This keeps the correct six-cylinder IPS application rather than the different 3500-RPM inboard reference. It is a representative base-engine graph, not a published numeric table or a measured MY5 test. Both engines are included."
        },
        {
          "brand": "Beneteau",
          "yachtModelId": 1079295,
          "setupId": "research-1079295-volkswagen-1405-1",
          "reportedModel": "140-5",
          "family": "TDI 140-5",
          "referenceId": "review_vw_tdi1405bw",
          "sourceIds": [
            "family-vw-vw-blue-water-2009-transcript"
          ],
          "note": "Base-engine family reference: Volkswagen TDI 140-5, represented by the documented BW variant's 103 kW at 3500 RPM. This does not establish the BW suffix as fitted. The original 2015 Oceanis 60 applicability remains unchanged; no assignment is extended to newer-generation 2024/2025 entries. Fuel values are calculated planning estimates, not a published numeric fuel curve or boat measurements."
        }
      ],
      "excludedModels": [
        {
          "brand": "Beneteau",
          "name": "Oceanis Clipper 461",
          "yachtModelId": 471261,
          "lastProductionYearReported": 2001,
          "sourceUrl": "https://sailboatdata.com/sailboat/beneteau-461/"
        },
        {
          "brand": "Dufour",
          "name": "Dufour 36 Classic",
          "yachtModelId": 105531,
          "lastProductionYearReported": 2004,
          "sourceUrl": "https://www.yachtsnet.co.uk/archives/dufour-36-classic/classic-36.htm"
        },
        {
          "brand": "Dufour",
          "name": "Dufour 45 Classic",
          "yachtModelId": 126462,
          "lastProductionYearReported": 2001,
          "dateCaveat": "Other catalogues give 2005; both reported endpoints predate the requested 2011 cutoff.",
          "sourceUrl": "https://bateau.ouest-atlantis.com/dufour-45-cl.html"
        },
        {
          "brand": "Elan",
          "name": "Elan 431",
          "yachtModelId": 506452,
          "lastProductionYearReported": 1999,
          "dateCaveat": "Reported end year is provisional; used for this user-requested retirement of the old unresolved design, not a certified yard production date.",
          "sourceUrl": "https://www.sailboat-cruising.com/Elan-431-Sailboat.html"
        }
      ]
    },
    "engineChoicePowerReferences": {
      "schemaVersion": 1,
      "reviewedOn": "2026-10-15",
      "purpose": "Power-band references for ordering Standard/Upgraded choices only, not engine installations, hardware equivalence or fuel curves.",
      "sources": {
        "nanni-guide": {
          "title": "Nanni manufacturer product guide",
          "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
          "locator": "Pages 12 and 24-25",
          "evidence": "N4.50 is listed at 35.4 kW / 47.5 hp; this is an engine reference, not the broker's installed-vessel total-power claim."
        },
        "nanni-65": {
          "title": "Nanni N4.65 manufacturer specification",
          "url": "https://nannienergy.com/it/produit/engine-n4-65/",
          "locator": "Model heading",
          "evidence": "N4.65 is listed at 43.4 kW / 59 hp."
        },
        "volvo-family": {
          "title": "Volvo Group: 2008 D-series manufacturer announcement",
          "url": "https://www.volvogroup.com/en/news-and-media/news/2008/aug/news-46596.html",
          "locator": "Engine power table",
          "evidence": "D1-20, D2-40 and D2-75 power bands are 14, 29 and 55 kW. Used only for broad ordering of the listed B-suffix identities, not suffix-specific rating certification or curve matching."
        },
        "volvo-55c": {
          "title": "Volvo Penta D2-55/D2-75 original operator manual, archived copy",
          "url": "https://www.eddievan.com/documents/engine/volvopenta/d2-55operatormanual.pdf",
          "locator": "Technical Data, search-indexed table",
          "evidence": "The manufacturer table identifies aftermarket D2-55 C with 41 kW crankshaft power. Direct fetch timed out; the indexed table was available."
        },
        "volvo-f": {
          "title": "Volvo Penta original D2 operator manual 7748816, August 2009",
          "url": "https://www.manualslib.de/manual/49008/Volvo-Penta-D2.html?page=76",
          "locator": "Printed page 74",
          "evidence": "The manufacturer table explicitly lists D2-55F at 41 kW and D2-75F at 55 kW crankshaft power."
        }
      },
      "engines": [
        {
          "manufacturer": "Nanni",
          "model": "N4.50",
          "comparisonPowerKw": 35.4,
          "sourceIds": [
            "nanni-guide"
          ]
        },
        {
          "manufacturer": "Nanni",
          "model": "N4.65",
          "comparisonPowerKw": 43.4,
          "sourceIds": [
            "nanni-65"
          ]
        },
        {
          "manufacturer": "Volvo Penta",
          "model": "D1-20B",
          "comparisonPowerKw": 14,
          "approximate": true,
          "sourceIds": [
            "volvo-family"
          ]
        },
        {
          "manufacturer": "Volvo Penta",
          "model": "D2-40B",
          "comparisonPowerKw": 29,
          "approximate": true,
          "sourceIds": [
            "volvo-family"
          ]
        },
        {
          "manufacturer": "Volvo Penta",
          "model": "D2-75B",
          "comparisonPowerKw": 55,
          "approximate": true,
          "sourceIds": [
            "volvo-family"
          ]
        },
        {
          "manufacturer": "Volvo Penta",
          "model": "D2-55C",
          "comparisonPowerKw": 41,
          "sourceIds": [
            "volvo-55c"
          ]
        },
        {
          "manufacturer": "Volvo Penta",
          "model": "D2-55F",
          "comparisonPowerKw": 41,
          "sourceIds": [
            "volvo-f"
          ]
        },
        {
          "manufacturer": "Volvo Penta",
          "model": "D2-75F",
          "comparisonPowerKw": 55,
          "sourceIds": [
            "volvo-f"
          ]
        }
      ]
    },
    "digitization": {
      "reviewedOn": "2026-10-18",
      "digitizedReferenceEngines": 61,
      "digitizedSourceModels": 41,
      "digitizedSourceCurves": 42,
      "references": [
        "review_nanni_n330",
        "review_yanmar_6by3160",
        "review_yanmar_2gm20f",
        "review_yanmar_3gm30f",
        "review_yanmar_4jh3e",
        "review_yanmar_4jh3te",
        "review_yanmar_4jh3hte",
        "review_man_i6730",
        "review_man_i6850",
        "review_volvopenta_d3220",
        "review_volvopenta_d4180if",
        "yanmar_3ym30",
        "volvo_d2_40",
        "volvo_d2_40b",
        "review_volvopenta_d240f",
        "volvo_d1_30b",
        "volvo_d1_30f",
        "volvo_d2_55",
        "review_volvopenta_d255c",
        "review_volvopenta_d255f",
        "volvo_d1_13",
        "volvo_d1_20",
        "volvo_d1_30",
        "volvo_d2_50",
        "volvo_d2_60",
        "volvo_d2_75",
        "review_volvopenta_d120f",
        "volvo_d1_20b",
        "review_volvopenta_d250f",
        "review_volvopenta_d260f",
        "review_volvopenta_d275f",
        "volvo_d2_75b",
        "volvo_d3_110",
        "review_volvopenta_d3150",
        "review_volvopenta_d3150i",
        "review_volvopenta_d4175",
        "review_volvo_d6ips400",
        "yanmar_2ym15",
        "yanmar_3ym20",
        "yanmar_3ym30ae",
        "yanmar_3jh5e",
        "yanmar_3jh40",
        "yanmar_4jh45",
        "yanmar_4jh57",
        "yanmar_4jh80",
        "yanmar_4jh110",
        "review_yanmar_4jh5e",
        "review_yanmar_4jh4te",
        "yanmar_4jh4_hte",
        "review_yanmar_4lv150",
        "review_yanmar_4lv170",
        "review_yanmar_4lv195",
        "review_yanmar_4lv250",
        "review_yanmar_6ly400",
        "review_yanmar_3jh5_family",
        "review_yanmar_4jh45cr",
        "review_yanmar_4jh57cr",
        "review_yanmar_4jh80cr",
        "review_yanmar_4lv150cr",
        "review_yanmar_4jh4tce",
        "review_yanmar_4jh5ce"
      ]
    },
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  },
  "engineCatalogue": [
    {
      "id": "johndeere-powertech6068tfm50",
      "manufacturer": "John Deere",
      "model": "PowerTech 6068TFM50",
      "displayName": "John Deere PowerTech 6068TFM50",
      "engineReferenceId": "review_johndeere_powertech6068tfm50",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Sunreef",
          "model": "Sunreef 70",
          "yachtModelId": 10271101,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only the 2024 sailing Sunreef 70 n+1, matching the registry's 2024 coverage. Operator explicitly labels Deere units as direct-drive propulsion; the supplied broker-sheet SPECS excerpt separately lists two 20.5 kVA generators, excluded from this setup. Published duty rating is M4. Operator calls n+1 ECO, but that label is not evidence of all-electric propulsion. Do not apply this diesel setup to the distinct electric Sunreef 70 Eco One Planet (hanse-mixed-s70-one-planet-electric), whose exact electric motor code remains unpublished in the reviewed manufacturer page, or to Sunreef 70 Power. See broker-source retrieval limitation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Ocean Sailing House: 2024 Sunreef 70 n+1",
              "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-70-n1/"
            },
            {
              "title": "Ocean Sailing House: n+1 operator broker sheet, 2025",
              "url": "https://www.booking-manager.com/wbm2/bmdoc/9398151357903078_NplusONE-_BROKERS_2025.pdf"
            },
            {
              "title": "Sunreef Yachts: Sunreef 70 Eco One Planet",
              "url": "https://sunreef-yachts.com/en/launched/sunreef-70-eco-one-planet/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_johndeere_powertech6068tfm50",
        "manufacturer": "John Deere",
        "model": "PowerTech 6068TFM50",
        "manufacturerRatedPowerKw": 168,
        "manufacturerRatedRpm": 2600,
        "warning": true,
        "warningNote": "Rating assumption: Representative manufacturer M4 reference for the sailing Sunreef 70 n+1 documented twin 6068TFM50 M4 installation: 168 kW / 2600 RPM. Uses the May 2001 manufacturer typical-propeller-load table, curve 6068TFM50225M4, not an endpoint-shaped estimate. The 44.3 L/h propeller endpoint and separate 46.8 L/h Fuel System field coexist in this same sheet and are not blended or treated as a calibration conflict on that fact alone.",
        "note": "Representative manufacturer M4 reference for the sailing Sunreef 70 n+1 documented twin 6068TFM50 M4 installation: 168 kW / 2600 RPM. Uses the May 2001 manufacturer typical-propeller-load table, curve 6068TFM50225M4, not an endpoint-shaped estimate. The 44.3 L/h propeller endpoint and separate 46.8 L/h Fuel System field coexist in this same sheet and are not blended or treated as a calibration conflict on that fact alone. Representative older M4 source, not verified as the installed serial-number calibration, 16FA/16FB option or cooling arrangement. The source is based on a keel-cooled engine. Exact published points only, linear interpolation within 1000-2600 RPM and no extrapolation. The source does not print a 2100-RPM row. Not a boat trial, generator, M3/M2 rating or Sunreef 70 Power. The M4 full-power duty limit is one hour in twelve; 2600 RPM is not an unrestricted continuous cruising recommendation.",
        "sources": [
          {
            "title": "John Deere PowerTech 6.8 L Engine - Engine Performance Curve 6068TFM50225M4, May 2001",
            "url": "https://aksaeurope.com/Content/Front/images/marin/168kW-2600rpm.pdf#page=2",
            "kind": "manufacturer-document",
            "sha256": "970f60497fbcea9730f6b1a55d0ede7698da86f5eb88a5a49a6090d6badc665a",
            "page": 2,
            "edition": "May 2001; certified 21 May 2001; curve 6068TFM50225M4",
            "locator": "PDF page 2, Fuel Consumption for Typical Propeller Curve, Prop Fuel gal/hr(L/hr); M4 identity on page 1",
            "evidence": "Eleven printed RPM / L/hr rows, 1000-2600 RPM, copied exactly without converting rounded gallon values. M4 168 kW / 2600 RPM; option 16FA/16FB; keel-cooled basis. The 44.3 L/h propeller-load endpoint is distinct from the separate 46.8 L/h Fuel System field in this same sheet.",
            "access": "Original manufacturer-authored PDF on engine-dealer mirror, privately recovered and full pages visually reviewed 2026-10-18."
          },
          {
            "title": "John Deere PowerTech 6068TFM50 Marine Propulsion Engine Specifications, April 2017",
            "url": "https://www.deere.ca/assets/pdfs/common/industries/engines-and-drivetrain/specsheets/6068tfm50_c.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1, Engine Specifications, M4 row; page 2, M-rating limits and 17-04 publication footer",
            "evidence": "M4 explicitly pairs 168 kW / 225 bhp with 2600 RPM and 46.8 L/h rated fuel consumption. M4 typical full-power operation is one hour in twelve. The M2 row has a different rating and must not be used as an M4 curve.",
            "access": "PDF linked by the current John Deere 6068TFM50 product page, retrieved and parsed on 2026-10-17."
          },
          {
            "title": "John Deere 6068TFM50 Marine Propulsion Engine",
            "url": "https://www.deere.ca/en/marine-engines/propulsion/powertech-6-8l-6068tfm50/",
            "kind": "manufacturer-document",
            "locator": "Engine Specifications: M4 row",
            "evidence": "Current manufacturer page corroborates 168 kW, 2600 RPM and rated fuel consumption 46.8 L/h for the M4 rating.",
            "access": "Full manufacturer page retrieved on 2026-10-17."
          },
          {
            "title": "John Deere Marine Engines brochure DSWC20",
            "url": "https://www.deere.com/assets/pdfs/common/industries/engines-and-drivetrain/brochures/marine-engines-brochure-dswc20.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 5 (zero-based 4), 6068TFM50 M4 row",
            "evidence": "Separate manufacturer brochure prints 168 kW, 2600 RPM and 44.3 L/h for M4. The 44.3/46.8 L/h publication discrepancy is retained; no serial-number or calibration changeover was established.",
            "access": "Manufacturer-hosted PDF table retrieved on 2026-10-17; conflicting value not averaged."
          }
        ]
      }
    },
    {
      "id": "man-i6730",
      "manufacturer": "MAN",
      "model": "i6 730",
      "displayName": "MAN i6 730",
      "engineReferenceId": "review_man_i6730",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Sunreef",
          "model": "Sunreef 70 Power",
          "yachtModelId": 833078,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only Perfomax Marine's private 2023 Sunreef 70 Power. Source calls the engines MAN i6 730 HP; retain that commercial designation without inventing a longer engine-plate code. Not an alternate rating for Amber One's i6-850.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Perfomax Marine: 2023 Sunreef 70 Power",
              "url": "https://perfomaxmarine.com/yacht-for-sale/2023-sunreef-70-power"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_man_i6730",
        "manufacturer": "MAN",
        "model": "i6 730",
        "manufacturerRatedPowerKw": 537,
        "manufacturerRatedRpm": 2300,
        "note": "MAN i6-730 original hourly fuel graph, 537 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; no load exponent or publication date is inferred. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. Do not blend older calibration sheets or rescale the plotted fuel readings.",
        "sources": [
          {
            "title": "MAN Engines - High speed engines for pleasure boats - Marine",
            "url": "https://www.ariexpo.gr/images/user/Marine/Engines/Marine_Pleasure_EN_180607_MAN.pdf",
            "sha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
            "page": 19,
            "edition": "D 114.632 - wd 07213",
            "issueDate": null,
            "issueDateNote": "Printed issue date not established. Neither the URL's 180607 nor PDF metadata is treated as an issue date.",
            "locator": "PDF page 19, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "man-i6850",
      "manufacturer": "MAN",
      "model": "i6-850",
      "displayName": "MAN i6-850",
      "engineReferenceId": "review_man_i6850",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Sunreef",
          "model": "Sunreef 70 Power",
          "yachtModelId": 833078,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only 2023 Amber One / Amber, matching registry year 2023. Explicit powercat, not the sailing Sunreef 70 or older different-generation 70-foot design.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Ocean Sailing House: 2023 Sunreef 70 Power Amber One",
              "url": "https://www.oceansailinghouse.com/charter-fleet/70-sunreef-power/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_man_i6850",
        "manufacturer": "MAN",
        "model": "i6-850",
        "manufacturerRatedPowerKw": 625,
        "manufacturerRatedRpm": 2300,
        "note": "MAN i6-850 original hourly fuel graph, 625 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; exponent and printed issue date are not established. The plotted upper fuel endpoint differs from the adjacent rating table and is imported as drawn, not forced to 163 L/h. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. No older-edition blending or power-rescaling.",
        "sources": [
          {
            "title": "MAN Engines - High speed engines for pleasure boats - Marine",
            "url": "https://www.ariexpo.gr/images/user/Marine/Engines/Marine_Pleasure_EN_180607_MAN.pdf",
            "sha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
            "page": 19,
            "edition": "D 114.632 - wd 07213",
            "issueDate": null,
            "issueDateNote": "Printed issue date not established. Neither the URL's 180607 nor PDF metadata is treated as an issue date.",
            "locator": "PDF page 19, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "nanni-n330",
      "manufacturer": "Nanni",
      "model": "N3.30",
      "displayName": "Nanni N3.30",
      "engineReferenceId": "review_nanni_n330",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali Catsmart",
          "yachtModelId": 32639133,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2025, 2024, 2023. A2024 manufacturer sheet explicitly identifies a pair of Nanni N3.30 engines, but its 19.6 hp rating appears inconsistent and is not adopted. The 2025 dealer listing also names N3.30 yet has generic option text naming Yanmar; it is corroboration of a published designation, not definitive individual-vessel identification or universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Croatia Yachting: 2025 Bali Catsmart, Kastela seller listing",
              "url": "https://www.boats.com/sailing-boats/2025-bali-catsmart-9860644/?showDealerLocator=1"
            },
            {
              "title": "Bali Catsmart manufacturer specifications A2024",
              "url": "https://www.bali-catamarans.com/wp-content/uploads/sites/4/2024/05/Caracteristiques-BALI-CATSMART-A2024-GB.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_nanni_n330",
        "manufacturer": "Nanni",
        "model": "N3.30",
        "manufacturerRatedPowerKw": 21.3,
        "manufacturerRatedRpm": 3600,
        "note": "Edition-specific N3.30 manufacturer fuel graph, brochure 150715-ENG, 21.3 kW / 3600 RPM, explicitly calculated propeller-load exponent 3. Same nominal power/RPM, Kubota 1.123 L, 78 x 78.4 mm and 24:1 compression as the current leaflet. This is a representative edition reference, not confirmation of the exact installed Bali Catsmart calibration or every model year. The older brochure prints 65 Nm and different emissions compliance versus 64 Nm in the current leaflet; no serial-number changeover is established. No blending with the 23.5:1 manual table, rescaling or extrapolation below the visible 1200 RPM start. Both catamaran engines are included.",
        "sources": [
          {
            "title": "Nanni marine engine Brochure N3.30, original manufacturer brochure with Nanni Diesel Australia contact block",
            "url": "https://www.nannidiesel.com.au/wp-content/uploads/2019/01/Brochure-N3.30.pdf",
            "sha256": "3572cc5afcebbc88c8c6adaa36ac918d1f3692dbad7b63ccba345f9b30ef3b3e",
            "page": 2,
            "edition": "150715-ENG, printed on page 2; not dated from hosting directory",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "nanni-n450",
      "manufacturer": "Nanni",
      "model": "N4.50",
      "displayName": "Nanni N4.50",
      "engineReferenceId": "review_nanni_n450",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.2",
          "yachtModelId": 12625379,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2023 Croatia Yachting vessel in Seget only; independent observed installation, not a universal substitution. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Croatia Yachting: 2023 Bali 4.2 seller listing",
              "url": "https://www.inautia.com/boat/2023-bali-4-2-10244230/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_nanni_n450",
        "manufacturer": "Nanni",
        "model": "N4.50",
        "manufacturerRatedPowerKw": 35.4,
        "manufacturerRatedRpm": 2800,
        "warning": true,
        "warningNote": "Rating assumption: Selected pair follows the exact-model 012024 product-guide edition; DGBXXC01007 independently identifies crankshaft 35.42 kW at the same rated speed. Edition-specific reference, not a universal installed-generation match. The 012014 manual instead gives 36.8 kW / 50 PS at 2800 RPM. Keep the guide's 35.4 kW / 47.5 hp and leaflet's 35.42 kW / 47.5 hp as printed; do not reconcile power units or establish a generation by horsepower alone.",
        "note": "Selected pair follows the exact-model 012024 product-guide edition; DGBXXC01007 independently identifies crankshaft 35.42 kW at the same rated speed. Edition-specific reference, not a universal installed-generation match. The 012014 manual instead gives 36.8 kW / 50 PS at 2800 RPM. Keep the guide's 35.4 kW / 47.5 hp and leaflet's 35.42 kW / 47.5 hp as printed; do not reconcile power units or establish a generation by horsepower alone. Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits.",
        "sources": [
          {
            "title": "Nanni Product Guide, DGBXXC03001K 012024",
            "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
            "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
            "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
            "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
          },
          {
            "title": "Nanni N4.50 propulsion-engine leaflet, DGBXXC01007",
            "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXC01007-N4.50.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC01007; no issue date established",
            "locator": "PDF page 1: Power at crankshaft, Rated speed and Idling speed; page 2: heading and document code",
            "evidence": "Exact N4.50: crankshaft 35.42 kW [47.5 hp], rated 2800 RPM, idle 840 RPM, Kubota base and mechanical indirect injection. Page 2 has graphical fuel curves, not a numeric RPM/l/h table. The printed 35.42/47.5 pair is preserved without recomputing horsepower.",
            "access": "Manufacturer-hosted PDF opened and text extracted; specification page rendered and visually inspected in memory on 2026-10-17."
          },
          {
            "title": "Nanni N4.40/N4.43HD/N4.47MD/N4.50 German operator manual, 012014.IndB",
            "url": "https://nannienergy.com/wp-content/uploads/2023/08/Manuel-N4.40-N4.50-DEU-1.pdf",
            "kind": "manufacturer-document",
            "edition": "012014.IndB, printed on final PDF page 67",
            "locator": "PDF page 64 / printed 61, Technical Data: N4.50 column and shared rated-speed row",
            "evidence": "N4.50 column prints maximum 36.8 kW / 50 PS; the rated-speed row is 2800 RPM. This differs from the later guide and DGBXXC01007 leaflet. The documents do not establish a serial-number or generation changeover.",
            "access": "Manufacturer-hosted PDF opened and text extracted; technical-data page rendered and visually inspected in memory on 2026-10-17."
          }
        ]
      }
    },
    {
      "id": "nanni-n465",
      "manufacturer": "Nanni",
      "model": "N4.65",
      "displayName": "Nanni N4.65",
      "engineReferenceId": "review_nanni_n465",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.4",
          "yachtModelId": 23155356,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2025, 2024, 2023, 2022. 2024 Master Yachting central-listing vessel only; model is retained without forcing a rating from the source's 59 hp display. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Master Yachting central listing: 2024 Bali 4.4 in Oren",
              "url": "https://www.boats.com/sailing-boats/2024-bali-4-4-10323339/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_nanni_n465",
        "manufacturer": "Nanni",
        "model": "N4.65",
        "manufacturerRatedPowerKw": 43.4,
        "manufacturerRatedRpm": 2700,
        "warning": true,
        "warningNote": "Rating assumption: DGBXXC01008B explicitly identifies crankshaft power and its rated speed for the mechanical-indirect-injection N4.65. The sourced rating is 59 hp, not 65 hp inferred from the model name. The older 20170102C leaflet's fuel-system descriptions conflict internally; they do not establish a common-rail generation. Installed-vessel identity remains unverified.",
        "note": "DGBXXC01008B explicitly identifies crankshaft power and its rated speed for the mechanical-indirect-injection N4.65. The sourced rating is 59 hp, not 65 hp inferred from the model name. The older 20170102C leaflet's fuel-system descriptions conflict internally; they do not establish a common-rail generation. Installed-vessel identity remains unverified. Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits.",
        "sources": [
          {
            "title": "Nanni N4.65 propulsion-engine leaflet, DGBXXC01008B",
            "url": "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01008B_N4.65-2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC01008B; no issue date established",
            "locator": "PDF page 1: specification rows; page 2: heading, fuel-system description and document code",
            "evidence": "Exact N4.65: crankshaft 43.4 kW [59 hp], rated 2700 RPM, idle 850 RPM. Kubota 2.434-litre turbocharged diesel with mechanical indirect injection. Page 2 specifies indirect E-TVCS and two valves per cylinder. The model number does not mean 65 hp.",
            "access": "PDF linked directly by the manufacturer's N4.65 product page; opened, text extracted and specification page rendered and visually inspected in memory on 2026-10-17."
          },
          {
            "title": "Nanni Product Guide, DGBXXC03001K 012024",
            "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
            "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
            "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
            "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
          },
          {
            "title": "Nanni N4.65 original leaflet, 20170102C ENG, distributor-hosted copy",
            "url": "https://nannidiesel.eu/wp-content/uploads/2017/08/N4.65-ENG.pdf",
            "kind": "manufacturer-document",
            "edition": "20170102C ENG",
            "locator": "PDF page 1 specification table versus PDF page 2 Technical Description",
            "evidence": "Page 1 identifies crankshaft 43.4 kW / 59 hp at rated 2700 RPM and indirect E-TVCS. Page 2 instead describes common rail, four valves per cylinder and DOHC. This is internally inconsistent; do not infer an additional generation or import those fuel-system claims into the selected reference.",
            "access": "Original Nanni-branded leaflet mirrored by Nanni regional distributor site; full PDF text opened on 2026-10-17. Used to preserve a conflict, not as the selected technical-identity source."
          }
        ]
      }
    },
    {
      "id": "nanni-n4115",
      "manufacturer": "Nanni",
      "model": "N4.115",
      "displayName": "Nanni N4.115",
      "engineReferenceId": "review_nanni_n4115",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 5.2",
          "yachtModelId": 58680964,
          "engineCount": 2,
          "configuration": "factory-option",
          "applicability": "Catalogue build years: 2026. Nanni option explicitly named by dealer; A2026 list separately names the N4.115 propeller package for twin 115 hp engines. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yachting 360: Bali 5.2 equipment specification",
              "url": "https://www.yachting360.fr/de/bateaux/bali-52"
            },
            {
              "title": "Croatia Yachting: Bali 5.2 price list A2026",
              "url": "https://bali-catamarans-dealer-croatia.com/images/ownership/yacht-annexes/Tarif%20Bali%205.2%20A2026.pdf"
            }
          ]
        },
        {
          "brand": "Bali",
          "model": "Bali 5.8",
          "yachtModelId": 50968538,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025. 2025 Angelina Yachting vessel in Biograd only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Angelina Yachting: 2025 Bali 5.8, Biograd seller listing",
              "url": "https://www.boats.com/sailing-boats/2025-bali-5-8-9658486/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 55",
          "yachtModelId": 23457678,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. 2023 hull 17 in Singapore only; exact source uses N4-115 hyphenation. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Simpson Marine: 2023 Lagoon 55 hull 17",
              "url": "https://www.simpsonmarine.com/yachts/Lagoon-55-10024850/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_nanni_n4115",
        "manufacturer": "Nanni",
        "model": "N4.115",
        "manufacturerRatedPowerKw": 84.6,
        "manufacturerRatedRpm": 2600,
        "warning": false,
        "warningNote": "",
        "note": "DGBXXC01010B identifies exact unsuffixed N4.115 crankshaft power and rated speed; mechanical direct injection, M4. Do not substitute N4.115 E, N4.140 or another same-power model. This is an engine-document reference, not evidence of an installed boat's generation or load. Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits.",
        "sources": [
          {
            "title": "Nanni N4.115 propulsion-engine leaflet, DGBXXC01010B",
            "url": "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01010B_N4.115-2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC01010B; no issue date established",
            "locator": "PDF page 1: Power at crankshaft, Rated speed, Idling speed and fuel-system rows; page 2: document code",
            "evidence": "Exact unsuffixed N4.115: crankshaft 84.6 kW [115 hp], rated 2600 RPM, idle 825 RPM. Kubota 3.769-litre turbo/intercooled diesel with mechanical direct injection; M4. No equivalence to N4.115 E is assumed.",
            "access": "Manufacturer-hosted PDF opened; full specification page and graphical-curve text extracted on 2026-10-17. No numerical points read from its charts."
          },
          {
            "title": "Nanni Product Guide, DGBXXC03001K 012024",
            "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
            "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
            "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
            "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
          }
        ]
      }
    },
    {
      "id": "nanni-n5230",
      "manufacturer": "Nanni",
      "model": "N5.230",
      "displayName": "Nanni N5.230",
      "engineReferenceId": "review_nanni_n5230cr2_2019",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Lagoon",
          "model": "Lagoon 77",
          "yachtModelId": 10100280,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build year: 2019. Exact twin Nanni installation is documented only on the 2023 Lagoon Seventy 7 MANAIA, outside catalogue coverage. This is not a universal factory fit and is not evidence that a 2019 charter boat carries this engine. The 2016 handbook's optional JOHN DEER / N5.230 wording is not silently used to relabel the engines on the 2019 vessel.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Odyssea: 2023 Lagoon Seventy 7 MANAIA original broker specification",
              "url": "https://www.odysseayachting.com/ownership-preowned-manaia-seventy-7-2023"
            }
          ],
          "engineFamilyReference": {
            "family": "N5.230",
            "reportedModel": "N5.230",
            "referenceModel": "N5.230 CR2",
            "referenceId": "review_nanni_n5230cr2_2019",
            "basis": "reviewed-base-engine-family",
            "note": "Representative N5.230 family reference using the exact initial-2019 N5.230 CR2 manufacturer numeric table, 168 kW / 2600 RPM, propeller-load exponent 3. A dealer documents twin CR2 on Seventy 7 and Nanni identifies the Lagoon N5/John Deere family; Manaia's own listing omits CR2. Exact installed suffix, serial number, calibration and applicability to every model year remain unconfirmed. The original 2023 vessel-only / 2019 catalogue caveat is unchanged. No rescaling to the vessel's 230 hp label or cross-edition blending. Both engines are included, not a measured Lagoon fuel test.",
            "sources": [
              {
                "title": "Nanni N5 CR2 Operator Manual, initial May 2019, N5.230CR2 exact numeric propeller-load table",
                "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXT09013_N5.CR2_Small.pdf#page=100",
                "kind": "manufacturer-document",
                "locator": "PDF pages 99-100 and 102, exact N5.230CR2 appendix DFRGBT02029",
                "sha256": "d861aec1454bb902ff3975710e6dc5b6eaf501c206ed94e2aeeafb41061bec4a",
                "evidence": "168 kW / 2600 RPM, 4.5 L, electronically controlled common rail, 16.7:1; nine explicitly labelled propeller-load-exp.3 L/h fuel rows. Exact source reference, not proof of Manaia's installed suffix or calibration.",
                "access": "Original manufacturer PDF privately preserved; relevant complete pages visually inspected and numeric cells independently verified on 2026-10-18."
              },
              {
                "title": "Nanni application service manager interview, 23 October 2023",
                "url": "https://nannienergy.com/nannis-profiles-patrice-hugot-application-service-manager/",
                "kind": "manufacturer-document",
                "locator": "Interview, Lagoon engine example",
                "evidence": "Nanni's application manager identifies the Lagoon installation as an N5 based on John Deere. Family evidence only, not exact suffix or hull identification.",
                "access": "Manufacturer's original article retrieved and relevant passage inspected on 2026-10-18."
              },
              {
                "title": "Marinec/Seacomm: Lagoon Seventy 7 installation with two Nanni N5.230 CR2",
                "url": "https://seacomm.ru/solutions/novyy-katamaran-lagoon-seventy-7-s-2-mya-sudovymi-dizelyami-nanni-n5-230-cr2/",
                "kind": "engine-dealer-installation",
                "locator": "Original installation article, engine model and technical summary",
                "evidence": "Dealer explicitly names twin N5.230 CR2 on Seventy 7, 228 hp and 4.5 L. Undated; no identification as Manaia or proof of its calibration.",
                "access": "Dealer's own original article retrieved and exact engine/boat passage inspected on 2026-10-18."
              }
            ]
          }
        }
      ],
      "engineFamilyReference": {
        "family": "N5.230",
        "reportedModel": "N5.230",
        "referenceModel": "N5.230 CR2",
        "referenceId": "review_nanni_n5230cr2_2019",
        "basis": "reviewed-base-engine-family",
        "note": "Representative N5.230 family reference using the exact initial-2019 N5.230 CR2 manufacturer numeric table, 168 kW / 2600 RPM, propeller-load exponent 3. A dealer documents twin CR2 on Seventy 7 and Nanni identifies the Lagoon N5/John Deere family; Manaia's own listing omits CR2. Exact installed suffix, serial number, calibration and applicability to every model year remain unconfirmed. The original 2023 vessel-only / 2019 catalogue caveat is unchanged. No rescaling to the vessel's 230 hp label or cross-edition blending. Both engines are included, not a measured Lagoon fuel test.",
        "sources": [
          {
            "title": "Nanni N5 CR2 Operator Manual, initial May 2019, N5.230CR2 exact numeric propeller-load table",
            "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXT09013_N5.CR2_Small.pdf#page=100",
            "kind": "manufacturer-document",
            "locator": "PDF pages 99-100 and 102, exact N5.230CR2 appendix DFRGBT02029",
            "sha256": "d861aec1454bb902ff3975710e6dc5b6eaf501c206ed94e2aeeafb41061bec4a",
            "evidence": "168 kW / 2600 RPM, 4.5 L, electronically controlled common rail, 16.7:1; nine explicitly labelled propeller-load-exp.3 L/h fuel rows. Exact source reference, not proof of Manaia's installed suffix or calibration.",
            "access": "Original manufacturer PDF privately preserved; relevant complete pages visually inspected and numeric cells independently verified on 2026-10-18."
          },
          {
            "title": "Nanni application service manager interview, 23 October 2023",
            "url": "https://nannienergy.com/nannis-profiles-patrice-hugot-application-service-manager/",
            "kind": "manufacturer-document",
            "locator": "Interview, Lagoon engine example",
            "evidence": "Nanni's application manager identifies the Lagoon installation as an N5 based on John Deere. Family evidence only, not exact suffix or hull identification.",
            "access": "Manufacturer's original article retrieved and relevant passage inspected on 2026-10-18."
          },
          {
            "title": "Marinec/Seacomm: Lagoon Seventy 7 installation with two Nanni N5.230 CR2",
            "url": "https://seacomm.ru/solutions/novyy-katamaran-lagoon-seventy-7-s-2-mya-sudovymi-dizelyami-nanni-n5-230-cr2/",
            "kind": "engine-dealer-installation",
            "locator": "Original installation article, engine model and technical summary",
            "evidence": "Dealer explicitly names twin N5.230 CR2 on Seventy 7, 228 hp and 4.5 L. Undated; no identification as Manaia or proof of its calibration.",
            "access": "Dealer's own original article retrieved and exact engine/boat passage inspected on 2026-10-18."
          }
        ]
      }
    },
    {
      "id": "nanni-n5230cr2",
      "manufacturer": "Nanni",
      "model": "N5.230 CR2",
      "displayName": "Nanni N5.230 CR2",
      "engineReferenceId": "review_nanni_n5230cr2_2019",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "review_nanni_n5230cr2_2019",
        "manufacturer": "Nanni",
        "model": "N5.230 CR2",
        "manufacturerRatedPowerKw": 168,
        "manufacturerRatedRpm": 2600,
        "warning": false,
        "warningNote": "",
        "note": "Exact initial-2019 N5.230 CR2 numeric propeller-load table, M4 168 kW / 2600 RPM, ISO 3046. The source's 228-cv rounded label and a broker's 230-hp label are not used to rescale the fuel values. Later leaflet torque entries are internally inconsistent and do not establish identical calibration for every installed boat. Per-engine manufacturer calculated propeller-load-exp.3 reference, not measured boat use. Nine exact printed rows; straight-line interpolation within 1000-2600 RPM only, no extrapolation. Representative family use must be explicitly reviewed when boat sources omit CR2. Preserve edition and installation uncertainty.",
        "sources": [
          {
            "title": "Nanni N5 CR2 Operator Manual, initial May 2019, exact N5.230CR2 data sheet DFRGBT02029",
            "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXT09013_N5.CR2_Small.pdf#page=100",
            "kind": "manufacturer-document",
            "sha256": "d861aec1454bb902ff3975710e6dc5b6eaf501c206ed94e2aeeafb41061bec4a",
            "page": 100,
            "edition": "DGBXXT09013, initial 05/2019; cover DGBXXT090013; exact appendix DFRGBT02029, ISO 3046",
            "locator": "PDF page 100, FUEL SYSTEM, Fuel consumption propeller load exp.3, l/h row; exact identity and 2600 RPM page 99; M4/ISO 3046 page 102",
            "evidence": "Nine original RPM/L/h pairs, 1000-2600 RPM, explicitly labelled propeller-load exponent 3. Separate full-load and US-gallon rows are not substituted. Exact 168 kW / 2600 RPM N5.230 CR2, John Deere 4.5 L common rail, 16.7:1. Source edition retained; no rescaling to a vessel's 230 hp label or later-calibration equivalence claimed.",
            "access": "Manufacturer-hosted original downloaded privately, SHA-256 verified; complete relevant pages rendered and visually inspected; independent PDF-cell extraction exactly matched all nine copied L/h values."
          }
        ]
      }
    },
    {
      "id": "torqeedo-cruise60fptorqlink",
      "manufacturer": "Torqeedo",
      "model": "Cruise 6.0 FP TorqLink",
      "displayName": "Torqeedo Cruise 6.0 FP TorqLink",
      "engineReferenceId": null,
      "curveAvailable": false,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 30.1",
          "yachtModelId": 10238965,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Later 2024 dealer-listed electric pod version, approved for inland waters only. Not evidence that the dataset's 2020 boats were offered or fitted with this version. Electric identity only; no diesel consumption curve applies.",
          "curveAvailable": false,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Risbjerg: Oceanis 30.1 price list 2024",
              "url": "https://www.risbjerg.dk/wp-content/uploads/2019/01/Oceanis-30.1.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 34.1",
          "yachtModelId": 25032645,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Explicit 2025-listed electric option, inland-waterway-only, except Australia. Availability on a 2023 build is not established. No diesel curve may be borrowed for this electric motor.",
          "curveAvailable": false,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
              "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf"
            }
          ]
        }
      ]
    },
    {
      "id": "volkswagen-1405",
      "manufacturer": "Volkswagen",
      "model": "140-5",
      "displayName": "Volkswagen 140-5",
      "engineReferenceId": "review_vw_tdi1405bw",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 60",
          "yachtModelId": 1079295,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2025, 2024, 2015. Evidence covers De Valk's 2015 18.24 m Oceanis 60 only. It does not resolve whether the 2024/2025 dataset entries are the same design or the newer Oceanis Yacht 60. Do not attach this engine to those later entries without hull/generation confirmation; a shared number 60 is not evidence.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2015 Beneteau Oceanis 60, reference 811385",
              "url": "https://www.devalk.nl/en/yachtbrokerage/811385/BENETEAU-OCEANIS-60.html"
            }
          ],
          "engineFamilyReference": {
            "family": "TDI 140-5",
            "reportedModel": "140-5",
            "referenceModel": "TDI 140-5 BW",
            "referenceId": "review_vw_tdi1405bw",
            "basis": "reviewed-base-engine-family",
            "note": "Base-engine family reference: Volkswagen TDI 140-5, represented by the documented BW variant's 103 kW at 3500 RPM. This does not establish the BW suffix as fitted. The original 2015 Oceanis 60 applicability remains unchanged; no assignment is extended to newer-generation 2024/2025 entries. Fuel values are calculated planning estimates, not a published numeric fuel curve or boat measurements.",
            "sources": [
              {
                "title": "Volkswagen Marine, Engines for Blue Water Craft, BlueWater_e_09.qxd, November 2009",
                "url": "https://expydoc.com/doc/3339812/engines-for-blue-water-craft",
                "kind": "manufacturer-document",
                "locator": "Printed page 2, TDI 140-5 BW model panel; printed page 5, Specifications, TDI 140-5 BW column; transcript lines 81-136 and 199-274.",
                "evidence": "The named BW variant pairs 103 kW / 140 hp with 3500 RPM, also repeated in the ISO 3046 specification table. Minimum specific fuel consumption is 203 g/kWh, without its RPM/load. The brochure describes BW-specific electronic mapping. No numeric RPM/L/h table or rated-power L/h endpoint was found in this transcript.",
                "access": "Manufacturer-authored brochure read through a public third-party transcript on 2026-10-17, not a current manufacturer-hosted PDF. The download link returned 403 Forbidden. Text transcription and original-page image fidelity could not be independently compared. No values were read from plotted curves."
              }
            ]
          }
        }
      ],
      "engineFamilyReference": {
        "family": "TDI 140-5",
        "reportedModel": "140-5",
        "referenceModel": "TDI 140-5 BW",
        "referenceId": "review_vw_tdi1405bw",
        "basis": "reviewed-base-engine-family",
        "note": "Base-engine family reference: Volkswagen TDI 140-5, represented by the documented BW variant's 103 kW at 3500 RPM. This does not establish the BW suffix as fitted. The original 2015 Oceanis 60 applicability remains unchanged; no assignment is extended to newer-generation 2024/2025 entries. Fuel values are calculated planning estimates, not a published numeric fuel curve or boat measurements.",
        "sources": [
          {
            "title": "Volkswagen Marine, Engines for Blue Water Craft, BlueWater_e_09.qxd, November 2009",
            "url": "https://expydoc.com/doc/3339812/engines-for-blue-water-craft",
            "kind": "manufacturer-document",
            "locator": "Printed page 2, TDI 140-5 BW model panel; printed page 5, Specifications, TDI 140-5 BW column; transcript lines 81-136 and 199-274.",
            "evidence": "The named BW variant pairs 103 kW / 140 hp with 3500 RPM, also repeated in the ISO 3046 specification table. Minimum specific fuel consumption is 203 g/kWh, without its RPM/load. The brochure describes BW-specific electronic mapping. No numeric RPM/L/h table or rated-power L/h endpoint was found in this transcript.",
            "access": "Manufacturer-authored brochure read through a public third-party transcript on 2026-10-17, not a current manufacturer-hosted PDF. The download link returned 403 Forbidden. Text transcription and original-page image fidelity could not be independently compared. No values were read from plotted curves."
          }
        ]
      }
    },
    {
      "id": "volkswagen-tdi1405bw",
      "manufacturer": "Volkswagen",
      "model": "TDI 140-5 BW",
      "displayName": "Volkswagen TDI 140-5 BW",
      "engineReferenceId": "review_vw_tdi1405bw",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "review_vw_tdi1405bw",
        "manufacturer": "Volkswagen",
        "model": "TDI 140-5 BW",
        "manufacturerRatedPowerKw": 103,
        "manufacturerRatedRpm": 3500,
        "warning": false,
        "warningNote": "",
        "note": "Representative TDI 140-5 BW reference uses the paired manufacturer 103 kW / 3500 RPM rating from the November 2009 brochure. The boat source does not establish BW as fitted. No numeric RPM/L/h table or rated-fuel endpoint was verified; the brochure's unspecified minimum 203 g/kWh is not used as rated-load fuel consumption. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volkswagen Marine, Engines for Blue Water Craft, BlueWater_e_09.qxd, November 2009",
            "url": "https://expydoc.com/doc/3339812/engines-for-blue-water-craft",
            "kind": "manufacturer-document",
            "locator": "Printed page 2, TDI 140-5 BW model panel; printed page 5, Specifications, TDI 140-5 BW column; transcript lines 81-136 and 199-274.",
            "evidence": "The named BW variant pairs 103 kW / 140 hp with 3500 RPM, also repeated in the ISO 3046 specification table. Minimum specific fuel consumption is 203 g/kWh, without its RPM/load. The brochure describes BW-specific electronic mapping. No numeric RPM/L/h table or rated-power L/h endpoint was found in this transcript.",
            "access": "Manufacturer-authored brochure read through a public third-party transcript on 2026-10-17, not a current manufacturer-hosted PDF. The download link returned 403 Forbidden. Text transcription and original-page image fidelity could not be independently compared. No values were read from plotted curves."
          }
        ]
      }
    },
    {
      "id": "volvopenta-d113",
      "manufacturer": "Volvo Penta",
      "model": "D1-13",
      "displayName": "Volvo Penta D1-13",
      "engineReferenceId": "volvo_d1_13",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "volvo_d1_13",
        "manufacturer": "Volvo Penta",
        "model": "D1-13",
        "manufacturerRatedPowerKw": 9,
        "manufacturerRatedRpm": 3200,
        "note": "D1-13 graph from the English 12-2016 leaflet, rated 9.0 kW. This edition replaces the earlier generic 9.6 kW estimate; confirm the installed engine generation.",
        "sources": [
          {
            "title": "Volvo Penta D1-13 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709028",
            "sha256": "dffb7b295135c8bb99abe02f38393f6c3bbc25cb76d38cc42fd038ffa7d23282",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d120",
      "manufacturer": "Volvo Penta",
      "model": "D1-20",
      "displayName": "Volvo Penta D1-20",
      "engineReferenceId": "volvo_d1_20",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 31 Cruiser",
          "yachtModelId": 100214,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2008, 2009. Only the Mola vessel first launched in 2008; 2009 boats not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Mola: Bavaria 31 Cruiser first launched 2008",
              "url": "https://www.yachthandel-mola.de/Gebrauchtyacht.php?ID=698"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 33 Cruiser",
          "yachtModelId": 254,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2008. Same J&J manual's alternative engine. Filename says 2006, declaration contains a later date; not vessel-specific proof for 2008.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria 33 Cruiser owners and skippers manual, club-hosted original",
              "url": "https://www.bavariayacht.org/downloads/manual/Bavaria%2033%20Cruiser%202006.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 36 Cruiser",
          "yachtModelId": 516654,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2012. Only Aquila, the 2012 Farr Avantgarde example sold by Ancasta. Independent alternative to the D1-30F example.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Ancasta: 2012 Bavaria 36 Cruiser Aquila, reference 50676",
              "url": "https://ancasta.com/boats-for-sale/used/sail/bavaria/36-cruiser/50676/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 32",
          "yachtModelId": 100261,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Dataset build years: 2012, 2014. February 2012 Farr Cruiser 32 manufacturer specification. Not the older Bavaria 32; 2014 hulls not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 32 manufacturer standard specification, February 2012",
              "url": "https://www.staynautica.com/wp-content/uploads/2012/09/Bavaria-32-Cruiser-Equipo-standar-2012.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 33",
          "yachtModelId": 473998,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2013, 2014, 2015, 2016. Older Farr-series brochure, Cruiser 33 technical table. Not J&J 33 Cruiser.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
              "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 34",
          "yachtModelId": 1301589,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 34 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf"
            },
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 34, 37 and 46",
              "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sb-cruiserline-de-en.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 34 Style",
          "yachtModelId": 8497882,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 34 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf"
            },
            {
              "title": "Bavaria Yachts Hungary: Cruiser 34 Style reference specification",
              "url": "https://bavaria.hu/bavaria-yacht/referenciak/bavaria-cruiser-34-style/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 36",
          "yachtModelId": 102053,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2011, 2012, 2013. Separate 2011 Farr owner's-layout example, Beekhuis reference 231009. Neither example establishes every 2012/2013 installation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beekhuis Yachtbrokers: 2011 Cruiser 36, reference 231009",
              "url": "https://www.beekhuisyachtbrokers.com/en/sold-yachts/bavaria-cruiser-36-2-cabin/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 37",
          "yachtModelId": 528769,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. Earlier Farr Cruiser 37 brochure configuration; do not replace with the engine printed in a later edition.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
              "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 37",
          "yachtModelId": 33086735,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Current Dufour 37 dealer specification; catalogue coverage is 2024. The cited edition is not proof of the engine on either individual catalogue yacht or of all factory options.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Angelina Yachting: Dufour 37 model specification",
              "url": "https://angelina-yachting.eu/model-dufour-37.html"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 310 GL",
          "yachtModelId": 593131,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Star Yachting's 2014 310 Grand Large only. Catalogue covers 2014 and 2018; the 2014 example does not verify the 2018 individual boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Star Yachting: 2014 Dufour 310 Grand Large inventory",
              "url": "https://www.star-yachting.fr/en/media-file/1242926/star-yachting-fiche-bateau-dufour-310-grand-large-en.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E3",
          "yachtModelId": 1093682,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Racing-Yachts reference 365 E3 example only; build year not established from the indexed engine passage. Retained independently of the later Yanmar standard.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Racing-Yachts: Elan E3, reference 365",
              "url": "https://www.racing-yachts.com/app/web/upload/pdfs/365.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Isla 40",
          "yachtModelId": 12781883,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; available configuration, not an inferred standard. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Isla 40 owner's manual",
              "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_20",
        "manufacturer": "Volvo Penta",
        "model": "D1-20",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3200,
        "note": "D1-20 manufacturer graph, English 12-2016, 13.8 kW. This is an engine/load reference, not a boat test.",
        "sources": [
          {
            "title": "Volvo Penta D1-20 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709035",
            "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d120b",
      "manufacturer": "Volvo Penta",
      "model": "D1-20B",
      "displayName": "Volvo Penta D1-20B",
      "engineReferenceId": "volvo_d1_20b",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 30 Cruiser",
          "yachtModelId": 100221,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2006. Only the broker's 2006 vessel; suffix retained. Not proof of every 2006 installation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2006 Bavaria 30 Cruiser, reference 351983",
              "url": "https://www.devalk.nl/en/yachtbrokerage/351983/BAVARIA-30-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 34 Cruiser",
          "yachtModelId": 255,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2008, 2009. J&J generation, 2008 example, reference 203653; not the later Farr Cruiser 34.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 203653",
              "url": "https://www.devalk.nl/en/yachtbrokerage/203653/BAVARIA-34-CRUISER.html"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_20b",
        "manufacturer": "Volvo Penta",
        "model": "D1-20B",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the B suffix or this boat installation.",
        "sources": [
          {
            "title": "Volvo Penta D1-20 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709035",
            "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d120f",
      "manufacturer": "Volvo Penta",
      "model": "D1-20F",
      "displayName": "Volvo Penta D1-20F",
      "engineReferenceId": "review_volvopenta_d120f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Elan",
          "model": "Elan Impression 35",
          "yachtModelId": 988651,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Vining Marine's 2015 boat and 2015 engine only. Catalogue covers 2015, 2017 and 2018; suffix F is not applied automatically to every boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Vining Marine: 2015 Elan Impression 35",
              "url": "https://viningmarine.co.nz/yachts/elan-impression-35/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d120f",
        "manufacturer": "Volvo Penta",
        "model": "D1-20F",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the F suffix or this boat installation.",
        "sources": [
          {
            "title": "Volvo Penta D1-20 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709035",
            "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d130",
      "manufacturer": "Volvo Penta",
      "model": "D1-30",
      "displayName": "Volvo Penta D1-30",
      "engineReferenceId": "volvo_d1_30",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 33 Cruiser",
          "yachtModelId": 254,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2008. J&J 33 Cruiser manual, section 1.1.3; not the Farr Cruiser 33. Manual lists alternatives, not a guaranteed fit on each 2008 boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria 33 Cruiser owners and skippers manual, club-hosted original",
              "url": "https://www.bavariayacht.org/downloads/manual/Bavaria%2033%20Cruiser%202006.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 38 Cruiser",
          "yachtModelId": 100213,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2008. Only De Valk's 2008 two-cabin J&J 38 Cruiser example; not the older Bavaria 38 or 38 Match.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2008 Bavaria 38 Cruiser, reference 202986",
              "url": "https://www.devalk.nl/en/yachtbrokerage/202986/BAVARIA-38-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 34",
          "yachtModelId": 1301589,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 34 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 34 Style",
          "yachtModelId": 8497882,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 34 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 37",
          "yachtModelId": 528769,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Published D1-30 standard configuration. Earlier editions and individual boats may differ.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 37 technical sheet, 2025",
              "url": "https://www.bavariayachts.it/download/37-cruiser-scheda-tenica-2025.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 37 Style",
          "yachtModelId": 12894471,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Published D1-30 standard configuration. Earlier editions and individual boats may differ.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 37 technical sheet, 2025",
              "url": "https://www.bavariayachts.it/download/37-cruiser-scheda-tenica-2025.pdf"
            },
            {
              "title": "Diamond Yachts: 2023 Bavaria Cruiser 37 Style",
              "url": "https://www.diamond-yachts.de/gebrauchtboote/details/bavaria-cruiser-37-style.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 40",
          "yachtModelId": 102806,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2011, 2013. 2011 Farr Cruiser 40 owners manual; listed engine, no standard/option assignment inferred.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
              "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 40 S",
          "yachtModelId": 105658,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Dataset build years: 2012, 2013. February 2012 standard specification explicitly names Cruiser 40 S. Not inferred from Cruiser 40 or 41S.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 40 S manufacturer standard specification, February 2012",
              "url": "https://www.staynautica.com/wp-content/uploads/2012/06/Bavaria-40-Cruiser-S-Equipo-standar-2012.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 41",
          "yachtModelId": 528768,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022. Earlier Farr Cruiser 41 brochure configuration; not the 2003 Bavaria 41.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
              "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 335 GL",
          "yachtModelId": 516950,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "De Valk reference 400656, built 2014, only. Catalogue covers 2014; the listing's overhaul does not establish a different engine model or the other catalogue yachts' installations.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2014 Dufour 335 Grand Large, reference 400656",
              "url": "https://www.devalk.nl/en/yachtbrokerage/400656/DUFOUR-335-GRAND-LARGE.html"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 350 GL",
          "yachtModelId": 829486,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dream Yacht's 2015 Valencia only; the operator does not give an F suffix. Not a claim that every 350 GL has this configuration.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Dream Yacht: 2015 Dufour 350 GL Valencia",
              "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1091?lang=it"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 360 GL",
          "yachtModelId": 4584373,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dream Yacht's 2019 Snowdrop only, described as Dufour 360. Catalogue covers 2018-2020 360 GL. The saildrive type is separate, and no suffix or universal factory fit is inferred.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Dream Yacht: 2019 Dufour 360 Snowdrop",
              "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1172"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan 350 Performance",
          "yachtModelId": 116264,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Nicolle Associates' 2010 Elan 350 performance-cruiser example only. Catalogue covers 2012/2013; this does not establish those individual boats' installations or use the renamed E4 as a proxy.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Nicolle Associates: 2010 Elan 350, Southampton",
              "url": "https://www.boats.com/sailing-boats/2010-elan-350-4790246/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E4",
          "yachtModelId": 1696182,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "2015 E4 owner's-manual edition only. Catalogue spans 2017-2024 with gaps; a manual edition does not establish every later build's installation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan E4 owner's manual, 23 September 2015",
              "url": "https://aquatoria-yachting.com/f/e4_owners_manual_23092015.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Isla 40",
          "yachtModelId": 12781883,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; specific boats require inspection. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Isla 40 owner's manual",
              "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Lucia 40",
          "yachtModelId": 1049039,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2019, 2017, 2016. Atalanta Marine's 2019 Lucia 40 vessel only; does not establish all 2016/2017 hulls. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Atalanta Marine: 2019 Fountaine Pajot Lucia 40 vessel brochure",
              "url": "https://atalantamarine.com/wp-content/uploads/2025/03/FOUNTAINE-PAJOT-LUCIA-40-2019.pdf"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 385",
          "yachtModelId": 484234,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only BoatAgent's 2013 Tyreso vessel. Registry also covers 2012 and 2015, not confirmed by this vessel example.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "BoatAgent: 2013 Hanse 385, Tyreso",
              "url": "https://boatagent.com/boats/hanse-385-tyreso-2013/"
            }
          ]
        },
        {
          "brand": "Nautitech",
          "model": "Nautitech 40",
          "yachtModelId": 116665,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only 2008 Citron Vert, the older Nautitech 40 design, not the later 40 Open. Matches registry year 2008, but not its individual charter vessel. Source is Port Navy Service's search-indexed original broker listing; full page returned 410. Separate 2008 Yanmar examples do not specify exact engine models.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Port Navy Service: 2008 Nautitech 40 Citron Vert",
              "url": "https://www.boat24.com/en/sailingboats/nautitech/nautitech-40/detail/745888/"
            }
          ]
        },
        {
          "brand": "Nautitech",
          "model": "Nautitech 40 Open",
          "yachtModelId": 858515,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only 2015 Roccamare in Neo Marine's original brochure. Registry covers 2015, 2018, 2022 and 2025. Does not establish other years or the separately retained catalogue label Nautitech 40 open NEW.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Neo Marine: 2015 Nautitech 40 Open Roccamare brochure",
              "url": "https://neomarine.fr/wp-content/uploads/2024/12/Nautitech-Catamarans-40-Open-ROCCAMARE-%E2%80%93-Neomarine-%E2%80%93-Brochure-complete.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_30",
        "manufacturer": "Volvo Penta",
        "model": "D1-30",
        "manufacturerRatedPowerKw": 20,
        "manufacturerRatedRpm": 3200,
        "note": "D1-30 graph from the English 12-2016 leaflet, rated 20.0 kW. This edition replaces the earlier generic 20.9 kW estimate; it is not applied to the separately rated B/F variants.",
        "sources": [
          {
            "title": "Volvo Penta D1-30 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709042",
            "sha256": "d32077e98cf588ac4ce35c1face110ffe8c197e346a941fefa0a770befdd6e34",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d130b",
      "manufacturer": "Volvo Penta",
      "model": "D1-30B",
      "displayName": "Volvo Penta D1-30B",
      "engineReferenceId": "volvo_d1_30b",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 34 Cruiser",
          "yachtModelId": 255,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2008, 2009. Separate J&J 2008 example, reference 806177; 2009 vessels not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 806177",
              "url": "https://www.devalk.nl/en/yachtbrokerage/806177/BAVARIA-34-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 37 Cruiser",
          "yachtModelId": 1,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2008. J&J Fun4Five: hull built 2007, launched March 2008, engine installed 2008. Build/launch distinction retained.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Bavaria 37 Cruiser Fun4Five, reference 812006",
              "url": "https://www.devalk.nl/en/yachtbrokerage/812006/BAVARIA-37-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 39 Cruiser",
          "yachtModelId": 258,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2005, 2007. Only De Valk reference 351628, built 2007; 2005 examples not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2007 Bavaria 39 Cruiser, reference 351628",
              "url": "https://www.devalk.nl/nl/jachtmakelaardij/351628/BAVARIA-39-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan 344 Impression",
          "yachtModelId": 167,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Batagent's specifically identified 2008 Impression 344 hull only. Catalogue covers 2006, 2008 and 2011; suffix B is not extrapolated to all builds.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Batagent: Elan Impression 344, 2008 equipment list",
              "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-e344.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_30b",
        "manufacturer": "Volvo Penta",
        "model": "D1-30B",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this B variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted.",
        "sources": [
          {
            "title": "Volvo Penta D1-30 Product Bulletin",
            "model": "D1-30",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
            "sha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d130f",
      "manufacturer": "Volvo Penta",
      "model": "D1-30F",
      "displayName": "Volvo Penta D1-30F",
      "engineReferenceId": "volvo_d1_30f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 36 Cruiser",
          "yachtModelId": 516654,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2012. Only the 2012 Farr-designed two-cabin YachtBroker vessel.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "YachtBroker: 2012 Bavaria 36 Cruiser, two-cabin boat",
              "url": "https://yachtbroker-network.com/boats-for-sale/bavaria-36-cruiser-2-cabin"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 36",
          "yachtModelId": 102053,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2011, 2012, 2013. Only the 2011 Farr/BMW vessel, De Valk reference 251277.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Farr Bavaria 36 Cruiser, 2011, reference 251277",
              "url": "https://www.devalk.nl/en/yachtbrokerage/251277/BAVARIA-36-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 350 GL",
          "yachtModelId": 829486,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Astra, model year 2017 with engine year 2016, only. Catalogue covers 2015-2017. Suffix F is retained and is not assumed for every boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Northstar Yacht Sales: 2017 Dufour 350 Grand Large Astra",
              "url": "https://www.northstaryachtsales.com/boat-details/2017-dufour-350-grand-large-34-8656593"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_30f",
        "manufacturer": "Volvo Penta",
        "model": "D1-30F",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this F variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted.",
        "sources": [
          {
            "title": "Volvo Penta D1-30 Product Bulletin",
            "model": "D1-30",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
            "sha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d240",
      "manufacturer": "Volvo Penta",
      "model": "D2-40",
      "displayName": "Volvo Penta D2-40",
      "engineReferenceId": "volvo_d2_40",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.0",
          "yachtModelId": 1073727,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2018, 2017. 2018 dealer-documented vessel only; does not establish the engines of all 2017-2018 hulls. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Croatia Yachting: 2018 Bali 4.0 equipment overview",
              "url": "https://bali-catamarans-dealer-croatia.com/images/ownership/yacht-annexes/used-bali-4_0-2018-overview.pdf"
            }
          ]
        },
        {
          "brand": "Bali",
          "model": "Bali 4.1",
          "yachtModelId": 4422574,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2020, 2019, 2018. Listed available engine in the February 2018 owner's manual for the 4.1 generation; no standard/option hierarchy inferred. The source's apparent D2-20 and 3JHSE typos are excluded. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Catana: Bali 4.1 owner's manual, February 2018",
              "url": "https://www.booking-manager.com/wbm2/bmdoc/3892661409705620_BALI_4.1_OWNER%27S_MANUAL.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 37 Cruiser",
          "yachtModelId": 1,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2008. White Whale's 2008 J&J-generation vessel in Dalmatia; not the later Farr Cruiser 37.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "White Whale: 2008 Bavaria 37 Cruiser in Dalmatia",
              "url": "https://www.uwjachtmakelaar.nl/zeiljachten/4dbc552f-2a1e-4bb4-ba6b-90a7cd0dd367/bavaria-37-cruiser-20/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 40 Cruiser",
          "yachtModelId": 259,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2009. Only the 2009 J&J 40 Cruiser vessel; not the later Farr Cruiser 40.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2009 Bavaria 40 Cruiser, reference 202170",
              "url": "https://www.devalk.nl/en/yachtbrokerage/202170/BAVARIA-40-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 42 Cruiser",
          "yachtModelId": 260,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2006, 2008. Only the J&J 2006 boat delivered March 2007, De Valk reference 200853.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2006 Bavaria 42 Cruiser, reference 200853",
              "url": "https://www.devalk.nl/en/yachtbrokerage/200853/BAVARIA-42-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 40",
          "yachtModelId": 102806,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2011, 2013. Same model-specific manual's explicit alternative; not transferred to the 2009 J&J 40 Cruiser.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
              "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 41",
          "yachtModelId": 528768,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure",
              "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sy-cruiserline-de-en.pdf"
            },
            {
              "title": "De Valk: Bavaria Cruiser 41, 2018, reference 813650",
              "url": "https://www.devalk.nl/en/yachtbrokerage/813650/BAVARIA-CRUISER-41.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 41S",
          "yachtModelId": 554817,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2017. Dealer page expressly names the sport Cruiser 41 S; undated specification, not confirmation of each 2017 boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Busfield Marine Brokers: Bavaria Cruiser 41 S",
              "url": "https://www.busfieldmarine.co.nz/shop/Bavaria%2BSail/Bavaria%2BCruiser%2B41%2BS.html"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 390",
          "yachtModelId": 23032907,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "2019 Marseille Dufour 390 listing only. Catalogue covers 2020; it is evidence for this modern design's observed installation, not the catalogue boat's identity.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2019 Dufour 390, Marseille",
              "url": "https://www.boats.com/sailing-boats/2019-dufour-390-9979766/"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 390 GL",
          "yachtModelId": 7681890,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "ProSail's 2019 Pixie, expressly described as 390 Grand Large, only. Catalogue covers 2019-2023; no universal factory fit or identity for the separate normalized Dufour 390 entry is implied.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "ProSail: 2019 Dufour 390 Pixie",
              "url": "https://www.prosail.it/en/yachts/dufour-390-2019-pixie/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan 384 Impression",
          "yachtModelId": 166,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "YoungBloods, built 2006, only. Catalogue covers 2005/2007; no universal fit or individual catalogue-boat identity is implied.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "David Walters Yachts: 2006 Elan Impression 384 YoungBloods",
              "url": "https://www.davidwaltersyachts.com/for-sale/10055144"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E5",
          "yachtModelId": 1295737,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Standard 2019 B E5 manufacturer equipment sheet only. Catalogue covers 2020; no assertion that all 2020 boats retained this fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan E5 Standard 2019 B, Meadream Sailing / Elan Yachts France",
              "url": "https://www.meadream-sailing.com/wp-content/uploads/2020/11/Elan-Yachts-E5.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 40",
          "yachtModelId": 835488,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "I. Castaner Yachts' 2018 Marbella Impression 40 only. Catalogue covers 2015-2019; not the 40.1 and not a universal fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "I. Castaner Yachts: 2018 Elan Impression 40, Marbella",
              "url": "https://www.boats.com/power-boats/2018-elan-impression-40-10280522/"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 400",
          "yachtModelId": 100401,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only De Valk reference 812423, built 2011 with engine installed 2011; registry also covers 2011. Source does not supply the F suffix and is not used to infer one.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2011 Hanse 400, reference 812423",
              "url": "https://www.devalk.nl/en/yachtbrokerage/812423/HANSE-400.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 415",
          "yachtModelId": 484232,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Croatia Yachting's 2016 Kastela vessel. Registry covers 2015-2018; this is a 2016 installation, not a universal 415 fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Croatia Yachting: 2016 Hanse 415 in Kastela",
              "url": "https://uk.boats.com/sailing-boats/2016-hanse-415-7837955/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_40",
        "manufacturer": "Volvo Penta",
        "model": "D2-40",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3200,
        "note": "D2-40 manufacturer fuel graph, English 09-2007, 29.1 kW / 3200 RPM. Uses the historical rating, not the differently rated later 27 kW leaflet. No power formula or power-rescaling is used.",
        "sources": [
          {
            "title": "Volvo Penta D2-40 Product Bulletin",
            "model": "D2-40",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
            "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d240b",
      "manufacturer": "Volvo Penta",
      "model": "D2-40B",
      "displayName": "Volvo Penta D2-40B",
      "engineReferenceId": "volvo_d2_40b",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 39 Cruiser",
          "yachtModelId": 258,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2005, 2007. Only the separate 2007 Network Yacht Brokers vessel; not evidence of universal or standard fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Network Yacht Brokers: 2007 Bavaria 39 Cruiser, reference 22F10156884",
              "url": "https://www.networkyachtbrokers.com/boats_for_sale/Bavaria_39_Cruiser-22F10156884.html/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_40b",
        "manufacturer": "Volvo Penta",
        "model": "D2-40B",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented B variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test.",
        "sources": [
          {
            "title": "Volvo Penta D2-40 Product Bulletin",
            "model": "D2-40",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
            "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d240f",
      "manufacturer": "Volvo Penta",
      "model": "D2-40F",
      "displayName": "Volvo Penta D2-40F",
      "engineReferenceId": "review_volvopenta_d240f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Dufour",
          "model": "Dufour 375 GL",
          "yachtModelId": 519477,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "De Valk's 2011-built, 2012-launched 375 Grand Large only; catalogue covers 2013, not this individual boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Dufour 375 Grand Large, reference 807067",
              "url": "https://www.devalk.nl/en/yachtbrokerage/807067/DUFOUR-375-GRAND-LARGE.html"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 382 GL",
          "yachtModelId": 829520,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dream Yacht's 2017 Taonga only. Catalogue covers 2015-2018; the F designation is not extrapolated to all four build years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Dream Yacht: 2017 Dufour 382 Grand Large Taonga",
              "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/984"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 400",
          "yachtModelId": 100401,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only 2011 Tarskavaig, matching the registry's 2011 coverage. F suffix is explicitly present in the original broker inventory.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Mark Cameron Yachts: 2011 Hanse 400 Tarskavaig",
              "url": "https://www.mcyachts.co.uk/news/new-listing-2011-hanse-400-tarskavaig/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d240f",
        "manufacturer": "Volvo Penta",
        "model": "D2-40F",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented F variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test.",
        "sources": [
          {
            "title": "Volvo Penta D2-40 Product Bulletin",
            "model": "D2-40",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
            "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d250",
      "manufacturer": "Volvo Penta",
      "model": "D2-50",
      "displayName": "Volvo Penta D2-50",
      "engineReferenceId": "volvo_d2_50",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 46",
          "yachtModelId": 529354,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 46 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf"
            },
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 34, 37 and 46",
              "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sb-cruiserline-de-en.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 46 Style",
          "yachtModelId": 3970430,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 46 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 412 GL",
          "yachtModelId": 1078623,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dream Yacht's 2017 Bermuda only. Catalogue covers 2016-2021; not a universal fit for that range.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Dream Yacht: 2017 Dufour 412 Bermuda",
              "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1178"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 40.1",
          "yachtModelId": 10233022,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "2021 Pula Impression 40.1 example only. Catalogue covers 2020, 2022 and 2023, not this individual example's year. The manufacturer's power-only summary was not used to infer this model.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2021 Elan Impression 40.1, Pula",
              "url": "https://www.boatshop24.com/us/boat/2021-elan-impression-40-1-10333878/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45.1",
          "yachtModelId": 9749015,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Standard 2020 B Impression 45.1 equipment list only. Catalogue spans 2019-2023; not a claim that all years and options have this engine.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression 45.1 Standard 2020 B equipment sheet",
              "url": "https://irp-cdn.multiscreensite.com/0515d615/files/uploaded/I45-1_Standard-EU_2020B.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Astrea 42",
          "yachtModelId": 7043001,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019. 2019 FAVORITE CHILD vessel brochure only; not all Astrea 42 build years. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Just Catamarans: 2019 Astrea 42 FAVORITE CHILD",
              "url": "https://justcatamarans.net/wp-content/uploads/2023/02/2019-Fountaine_Pajot-Astrea_42-02182023.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Elba 45",
          "yachtModelId": 10238913,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020. Grand Large manufacturer inventory edition hosted by Canet Boat Plaisance; not a guarantee for every 2020-2025 hull. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Elba 45 Grand Large inventory",
              "url": "https://canetboatplaisance.com/wp-content/uploads/2022/02/inventaire-fr-elba-45-fountaine-pajot.pdf"
            }
          ]
        },
        {
          "brand": "Nautitech",
          "model": "Nautitech 46 Open",
          "yachtModelId": 37490460,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only Neo Marine's 2023 Nautitech 46 Open. Registry covers 2022 only, so that boat's fit remains unconfirmed. This is explicitly the Open design, not a Fly or other similarly sized catamaran.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Neo Marine: 2023 Nautitech 46 Open",
              "url": "https://neomarine.fr/en/bateau/2023-nautitech-46-open-id52-en/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_50",
        "manufacturer": "Volvo Penta",
        "model": "D2-50",
        "manufacturerRatedPowerKw": 37.5,
        "manufacturerRatedRpm": 3000,
        "note": "D2-50 manufacturer graph, English 11-2022, 37.5 kW. Only the plotted 1600-3000 RPM range is used.",
        "sources": [
          {
            "title": "Volvo Penta D2-50 product specification",
            "url": "https://pubs.volvopenta.com/publications/47710130",
            "sha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d250f",
      "manufacturer": "Volvo Penta",
      "model": "D2-50F",
      "displayName": "Volvo Penta D2-50F",
      "engineReferenceId": "review_volvopenta_d250f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.3",
          "yachtModelId": 1078634,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2018, 2017. 2017 charter vessel SAMOA only. Source writes Volvo D2 50 F; hyphenation is normalized, suffix F preserved. Indexed inventory only; do not confuse with the 4.3 MY. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Dream Yacht: SAMOA, 2017 Bali 4.3 inventory",
              "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1073"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d250f",
        "manufacturer": "Volvo Penta",
        "model": "D2-50F",
        "manufacturerRatedPowerKw": 37.5,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-50 base-engine manufacturer graph at the same 37.5 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "sources": [
          {
            "title": "Volvo Penta D2-50 product specification",
            "url": "https://pubs.volvopenta.com/publications/47710130",
            "sha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d255",
      "manufacturer": "Volvo Penta",
      "model": "D2-55",
      "displayName": "Volvo Penta D2-55",
      "engineReferenceId": "volvo_d2_55",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 41",
          "yachtModelId": 121614,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2003. Only the broker's 2003 Bavaria 41; not the Farr Cruiser 41 introduced a decade later.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Agence Yachting Mediterranee: 2003 Bavaria 41",
              "url": "https://www.agence-yachting-med.fr/acheter-mon-bateau/bavaria-yachts-41-797"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 42 Cruiser",
          "yachtModelId": 260,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2006, 2008. Separate 2006 Boatshed example, reference 351444. Neither example establishes the 2008 boats' installation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Boatshed Portsmouth: 2006 Bavaria 42 Cruiser, reference 351444",
              "url": "https://www.boatshed.com/bavaria_42_cruiser-boat-351444.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 44",
          "yachtModelId": 264,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2002, 2003, 2005. Only Del Mar, a 2003 three-cabin Bavaria 44. Spacing follows the source; 2002 and 2005 builds not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2003 Bavaria 44 three-cabin Del Mar, reference 90658",
              "url": "https://www.devalk.nl/en/yachtbrokerage/90658/BAVARIA-44---3.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 46 Cruiser",
          "yachtModelId": 261,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2006, 2007. J&J 2007 vessel; not the later Farr Cruiser 46. 2006 builds not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Nord Est Yacht: Bavaria 46 Cruiser, 2007, listing 667",
              "url": "https://www.nordestyacht.it/bavaria-46-cruiser/667"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 47 Cruiser",
          "yachtModelId": 100255,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2009. Only Naboo, the 2009 Bavaria 47 Cruiser offered by The One Yacht.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "The One Yacht: 2009 Bavaria 47 Cruiser Naboo",
              "url": "https://theoneyacht.com/yacht/bavaria-47-cruiser/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 40",
          "yachtModelId": 102806,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2011, 2013. Same manual's explicit alternative. Individual 2011/2013 engine identity must still be checked.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
              "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 45",
          "yachtModelId": 100212,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2010, 2012, 2013, 2018. Only Almissani's 2012 boat; 2010/2013/2018 builds not individually verified. Not C45.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Almissani original listing: 2012 Bavaria Cruiser 45",
              "url": "https://www.boatshop24.com/us/boat/2012-bavaria-cruiser-45-9728443/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 46",
          "yachtModelId": 529354,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023, 2024. Earlier Farr Cruiser 46 brochure; not J&J Bavaria 46 Cruiser.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
              "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis Clipper 411",
          "yachtModelId": 151,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2003. Boatshed Portsmouth reference 246542, a 2003 Oceanis 411 Clipper with shaft drive. Vessel example only, not proof of the dataset's four-cabin charter boat. A separate Clipper listing printed only the incomplete Yanmar family name 4JH3; no suffix was invented.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Boatshed Portsmouth: 2003 Beneteau Oceanis 411 Clipper, reference 246542",
              "url": "https://norfolk.boatshed.com/beneteau_oceanis_411-boat-246542.html"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 44 (2004 catalogue entry)",
          "yachtModelId": 126191,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "DBY stock INDU442820, ALL DAY, explicitly a 2004 Dufour 44 of the Felci / Patrick Roseo generation, only. Catalogue covers 2004 but describes four cabins; ALL DAY has a three-cabin owner layout. This establishes an observed installation for the older named Dufour 44 design, not sourceModelId 126191's individual charter boat or every layout. Not the 2024/2025 Dufour 44, and no B suffix is inferred from the separate Performance listing.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "DBY Boat Sales: 2004 Dufour 44 ALL DAY, stock INDU442820",
              "url": "https://www.dbyboatsales.com.au/?bdbrochure=dufour-44"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 412 GL",
          "yachtModelId": 1078623,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Separate 2016 Bormes-les-Mimosas 412 Grand Large example only; retained independently of the 2017 D2-50 example.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2016 Dufour 412 Grand Large, Bormes-les-Mimosas",
              "url": "https://ca.boats.com/sailing-boats/2016-dufour-412-grand-large-10308800/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45",
          "yachtModelId": 837181,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "2019 legacy Impression 45 vessel listing only. Catalogue includes 2015-2019 as well as 2023-2025; no transfer to the newer design under the same label.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2019 Elan Impression 45, reference 9113406",
              "url": "https://www.topboats.com/uk/boat/2019-elan-impression-45-9113406/"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Saba 50",
          "yachtModelId": 829525,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table; no standard/option status inferred. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
              "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_55",
        "manufacturer": "Volvo Penta",
        "model": "D2-55",
        "manufacturerRatedPowerKw": 41,
        "manufacturerRatedRpm": 3000,
        "note": "D2-55 manufacturer fuel graph, English 07-2013, at calculated propeller load exponent 3. The table prints 41 kW and the graph legend 40.5 kW; values are digitized without power-rescaling. This replaces the former generic 40 kW estimate.",
        "sources": [
          {
            "title": "Volvo Penta D2-55 product specification, English 07-2013",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
            "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
            "page": 1,
            "edition": "English 07-2013",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d255c",
      "manufacturer": "Volvo Penta",
      "model": "D2-55C",
      "displayName": "Volvo Penta D2-55C",
      "engineReferenceId": "review_volvopenta_d255c",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Elan",
          "model": "Elan 434 Impression",
          "yachtModelId": 165,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Nautilus Yacht Management's separate 2006 Impression 434 in Nadi only, outside the catalogue's build years. Exact C suffix is retained.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Nautilus Yacht Management: 2006 Elan Impression 434, Nadi",
              "url": "https://www.boats.com/sailing-boats/2006-elan-impression-434-10237305/?showDealerLocator=1"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d255c",
        "manufacturer": "Volvo Penta",
        "model": "D2-55C",
        "manufacturerRatedPowerKw": 41,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented C variant under the reviewed base-engine policy. Not an independently certified C-suffix or installed-boat fuel test.",
        "sources": [
          {
            "title": "Volvo Penta D2-55 product specification, English 07-2013",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
            "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
            "page": 1,
            "edition": "English 07-2013",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d255f",
      "manufacturer": "Volvo Penta",
      "model": "D2-55F",
      "displayName": "Volvo Penta D2-55F",
      "engineReferenceId": "review_volvopenta_d255f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.5",
          "yachtModelId": 859116,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2019, 2018, 2017. 2017 Catamaran Guru sale vessel only; preserve the F suffix. Published 40/55/57 hp offerings elsewhere are not converted into additional guessed models. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Catamaran Guru: 2017 Bali 4.5 original sale inventory",
              "url": "https://catamaranguru.com/2017-bali-4-5-for-sale-great-buy/"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 410 GL",
          "yachtModelId": 556134,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "2015 Mamaroneck 410 GL example only; catalogue covers 2015. Not the Dufour 41, 41 Classic or 412 GL.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2015 Dufour 410 GL, Mamaroneck",
              "url": "https://www.boats.com/sailing-boats/2015-dufour-410-gl-10320590/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan 444 Impression",
          "yachtModelId": 110636,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Sunlife Charter's TIGER only; build year not verified from the cited indexed passage. Catalogue covers 2013, which is not individually identified by this example.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Sunlife Charter: Elan 444 Impression TIGER",
              "url": "https://www.sunlife.hr/en/charter/yachtdetails/p/yachtId-3297750265000116/Elan%2B444%2BImpression-TIGER.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 415",
          "yachtModelId": 484232,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only 2016 Acadia in Kevin Dailey Yacht Brokerage's listing. Registry covers 2015-2018. Exact F suffix retained; alternative to the separately documented D2-40 boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Kevin Dailey Yacht Brokerage: 2016 Hanse 415 Acadia",
              "url": "https://www.boattrader.com/boat/2016-hanse-415-9882923/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d255f",
        "manufacturer": "Volvo Penta",
        "model": "D2-55F",
        "manufacturerRatedPowerKw": 41,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented F variant under the reviewed base-engine policy. Not an independently certified F-suffix or installed-boat fuel test.",
        "sources": [
          {
            "title": "Volvo Penta D2-55 product specification, English 07-2013",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
            "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
            "page": 1,
            "edition": "English 07-2013",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d260",
      "manufacturer": "Volvo Penta",
      "model": "D2-60",
      "displayName": "Volvo Penta D2-60",
      "engineReferenceId": "volvo_d2_60",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Dufour",
          "model": "Dufour 41",
          "yachtModelId": 34313410,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "ACY Yachts' 2024 Marina del Rey example only. Catalogue covers 2023 and 2024; this is not the older Dufour 41 Classic and is not a universal standard-engine claim.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "ACY Yachts: 2024 Dufour 41, Marina del Rey",
              "url": "https://www.boattrader.com/boat/2024-dufour-41-10109132//"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 44",
          "yachtModelId": 39893520,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Euro Sail Yacht's November 2024 new-generation Dufour 44 offer. Catalogue covers 2024/2025. Not applicable to the separate 2004 catalogue entry.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Euro Sail Yacht: Dufour 44, November 2024 offer",
              "url": "https://www.eurosailyacht.com/en/latest-offers/267/44-novembre-2024"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 48 Catamaran",
          "yachtModelId": 5052719,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "ProSail's 2019 catamaran example only. Catalogue spans 2018-2025; the example does not establish every year's factory fit. Not applicable to the new 48 monohull.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "ProSail: Dufour 48 Catamaran, 2019",
              "url": "https://www.prosail.it/en/yachts/dufour-48-catamaran-2019/"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 430",
          "yachtModelId": 10249433,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "W-Yachts' upgraded 2024 stock Dufour 430 only. Catalogue covers 2020, 2022 and 2023; this later example does not establish the engine on those boats or a standard fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "W-Yachts: 2024 Dufour 430, Vestre Amoy",
              "url": "https://ca.boats.com/sailing-boats/2024-dufour-430-9987789/"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 430 GL",
          "yachtModelId": 7657334,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Malta Yachting's cited 430 Grand Large specification. Catalogue covers 2019, 2020, 2021 and 2023; publication does not verify each individual build or exclude other configurations.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Malta Yachting: Dufour 430 Grand Large",
              "url": "https://www.maltayachting.com.mt/product/dufour-430-grand-large/"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Saona 47",
          "yachtModelId": 2876277,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2020, 2019, 2018, 2017. 2020 AILA Maestro vessel, hull 120, only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Ward Yacht Sales: 2020 Saona 47 AILA",
              "url": "https://www.wardyachtsales.com/yachts-for-sale/2020-fountaine-pajot-saona-47-fort-pierce-florida-2850622"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_60",
        "manufacturer": "Volvo Penta",
        "model": "D2-60",
        "manufacturerRatedPowerKw": 44,
        "manufacturerRatedRpm": 3000,
        "note": "D2-60 manufacturer graph, English 11-2022, 44 kW; replaces the earlier generic 43 kW estimate. Confirm the engine generation.",
        "sources": [
          {
            "title": "Volvo Penta D2-60 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709927",
            "sha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d260f",
      "manufacturer": "Volvo Penta",
      "model": "D2-60F",
      "displayName": "Volvo Penta D2-60F",
      "engineReferenceId": "review_volvopenta_d260f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Dufour",
          "model": "Dufour 460 GL",
          "yachtModelId": 1026022,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Williams and Smithells' 2017 460 Grand Large only; catalogue spans 2016-2020.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Williams and Smithells: 2017 Dufour 460 Grand Large",
              "url": "https://www.williamsandsmithells.com/?marinesync_pdf=12917"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 470",
          "yachtModelId": 12732252,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "TNC Proyect's 2023 Denia example only, not a contradiction proving either engine universally standard.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "TNC Proyect: 2023 Dufour 470, Denia",
              "url": "https://www.youboat.com/boat/2023-dufour-470-9833171/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E6",
          "yachtModelId": 25647923,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "De Valk reference 812156, built 2022, only. The observed Volvo installation is retained separately from the published Yanmar configurations.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2022 Elan E6, reference 812156",
              "url": "https://www.devalk.nl/en/yachtbrokerage/812156/ELAN-E6.html"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d260f",
        "manufacturer": "Volvo Penta",
        "model": "D2-60F",
        "manufacturerRatedPowerKw": 44,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-60 base-engine manufacturer graph at the same 44 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "sources": [
          {
            "title": "Volvo Penta D2-60 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709927",
            "sha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d275",
      "manufacturer": "Volvo Penta",
      "model": "D2-75",
      "displayName": "Volvo Penta D2-75",
      "engineReferenceId": "volvo_d2_75",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 46 Cruiser",
          "yachtModelId": 261,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2006, 2007. Separate 2007 J&J boat with explicitly described engine upgrade. Source does not prove when that upgrade was fitted.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Diamond Yachts: J&J Bavaria 46 Cruiser, 2007",
              "url": "https://www.diamond-yachts.de/gebrauchtboote/details/bavaria-46-cruiser.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 49",
          "yachtModelId": 262,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2004, 2005. Only Xboat reference 6118, built 2004, described as original engine. Not universal factory evidence for 2004 or 2005.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Xboat: Bavaria 49, 2004, reference 6118",
              "url": "https://www.xboat.uk/PDFs-6118-BAVARIA_BAVARIA-49"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria 50 Cruiser",
          "yachtModelId": 100225,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2005, 2007, 2008. Only the J&J-era 2007 vessel, De Valk reference 800153. Not the later Farr Cruiser 50; 2005/2008 boats unverified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2007 Bavaria 50 Cruiser, reference 800153",
              "url": "https://www.devalk.nl/en/yachtbrokerage/800153/BAVARIA-50-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 46",
          "yachtModelId": 529354,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 46 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf"
            },
            {
              "title": "Clipper Marine: 2015 Bavaria Cruiser 46 Eastern Trilogy",
              "url": "https://www.clippermarine.co.uk/boats-for-sale~boat-feed-detail~-bavaria-cruiser-46~58921"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 46 Style",
          "yachtModelId": 3970430,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser 46 technical sheet",
              "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf"
            },
            {
              "title": "VELADOC original listing: Bavaria Cruiser 46 Style",
              "url": "https://au.boats.com/sailing-boats/2017-bavaria-cruiser-46-style-10020572/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 50",
          "yachtModelId": 102807,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2011, 2012, 2013. Farr Cruiser 50 technical table; not J&J 50 Cruiser. Individual 2011-2013 hulls still require verification.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
              "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 51",
          "yachtModelId": 556469,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure",
              "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sy-cruiserline-de-en.pdf"
            },
            {
              "title": "Sail Yachting: Bavaria Cruiser 51 standard specification",
              "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/_____bavaria_cruiser_51-1.pdf"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 460 GL",
          "yachtModelId": 1026022,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Abayachting's separate 2016 460 Grand Large only. Both observed alternatives are retained; neither identifies every catalogue yacht.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Abayachting: 2016 Dufour 460 Grand Large",
              "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-460-Grand-Large-usata-2016/zsM9ihJE7ECIne4ldsa-UA/v/bim/1"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 470",
          "yachtModelId": 12732252,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Racing-Yachts reference 774, built 2024, only. Catalogue covers 2021-2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Racing-Yachts: 2024 Dufour 470, reference 774",
              "url": "https://www.racing-yachts.com/app/web/upload/pdfs/774.pdf"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 520 GL",
          "yachtModelId": 3909307,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Separate 2018 Cecina 520 Grand Large example only. Not substituted for the larger D3-110 and not a universal 2019 fit claim.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2018 Dufour 520 Grand Large, Cecina",
              "url": "https://uk.boats.com/sailing-boats/2018-dufour-520-grand-large-10263608/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan 514 Impression",
          "yachtModelId": 107353,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Xboat reference 4489, built 2008, only. Catalogue covers 2007/2008; a separate Hvar Adventure brochure's D3 plus horsepower was not expanded into a guessed D3 engine designation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Xboat: 2008 Elan 514 Impression, reference 4489",
              "url": "https://www.xboat.uk/PDFs-4489-ELAN-ELAN%2B514%2BIMPRESSION"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45.1",
          "yachtModelId": 9749015,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "De Valk reference 812510, built 2023, only. Separate observed alternative, not proof of the factory option offered in every earlier year.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2023 Elan Impression 45.1, reference 812510",
              "url": "https://www.devalk.nl/en/yachtbrokerage/812510/ELAN-IMPRESSION-45.1.html"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 50",
          "yachtModelId": 829505,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "DMA Yachting's 2019 Impression 50 in Faro only. Catalogue covers 2015-2019; not the 50.1 and not a universal fit for the earlier years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "DMA Yachting: 2019 Elan Impression 50, Faro",
              "url": "https://www.boats.com/sailing-boats/2019-elan-impression-50-10365070/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 50.1",
          "yachtModelId": 12895613,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Mystic Impression, built 2022, only, outside the catalogue's listed years. Kept as an independently documented older alternative, not a universal year-based rule.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "SYS Yacht Sales: 2022 Elan Impression 50.1 Mystic Impression",
              "url": "https://sysyachtsales.com/yacht-search/2022/elan-impression-50-1-mystic-impression/9761443/"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Aura 51",
          "yachtModelId": 28466327,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2025, 2024, 2023. 2024 Fort Lauderdale vessel only. Conflicting source horsepower cells are not used, and newer Yanmar offerings are not assumed from their power. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker seller listing: 2024 Aura 51, Fort Lauderdale",
              "url": "https://www.boattrader.com/boat/2024-fountaine-pajot-aura-51-10061688/"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Saba 50",
          "yachtModelId": 829525,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
              "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 505",
          "yachtModelId": 530038,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Firros Yachts' Hanse 505 model specification, not an individual vessel identification. Registry covers 2017 and 2018, but this undated dealer page does not establish which build years or engine suffixes it describes.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Firros Yachts: Hanse 505 technical characteristics",
              "url": "https://www.firrosyachts.com/hanse/hanse-505/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_75",
        "manufacturer": "Volvo Penta",
        "model": "D2-75",
        "manufacturerRatedPowerKw": 55,
        "manufacturerRatedRpm": 3000,
        "note": "D2-75 manufacturer graph, English 11-2022, 55 kW. This is an engine/load reference, not a boat test.",
        "sources": [
          {
            "title": "Volvo Penta D2-75 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709063",
            "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d275b",
      "manufacturer": "Volvo Penta",
      "model": "D2-75B",
      "displayName": "Volvo Penta D2-75B",
      "engineReferenceId": "volvo_d2_75b",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria 51 Cruiser",
          "yachtModelId": 100253,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2010. Only Boatery's 2010 vessel. Its dimensions differ from later Farr Cruiser 51; do not merge generations or drop B suffix.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Boatery: Bavaria 51 Cruiser, 2010 vessel specification",
              "url": "https://boatery.dk/wp-content/uploads/2024/10/boatery_bavaria_51_cruiser.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan 434 Impression",
          "yachtModelId": 165,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Petzold's 2007 Cranston Impression 434 only. Catalogue covers 2007-2009; not a standard fit across that range.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Petzold's Marine Center: 2007 Elan Impression 434",
              "url": "https://www.boats.com/sailing-boats/2007-elan-impression-434-10132864/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_75b",
        "manufacturer": "Volvo Penta",
        "model": "D2-75B",
        "manufacturerRatedPowerKw": 55,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-75 base-engine manufacturer graph at the same documented 55 kW / 3000 RPM rating. The graph does not individually certify the older B suffix or this boat installation.",
        "sources": [
          {
            "title": "Volvo Penta D2-75 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709063",
            "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d275f",
      "manufacturer": "Volvo Penta",
      "model": "D2-75F",
      "displayName": "Volvo Penta D2-75F",
      "engineReferenceId": "review_volvopenta_d275f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Hanse",
          "model": "Hanse 505",
          "yachtModelId": 530038,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only 2014 First Light. Registry covers 2017 and 2018, which are not established by this older vessel example. F suffix explicitly retained.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "YOTI: Hanse 505 First Light",
              "url": "https://www.yoti.com.au/?bdbrochure=hanse-505-first-light-sold"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d275f",
        "manufacturer": "Volvo Penta",
        "model": "D2-75F",
        "manufacturerRatedPowerKw": 55,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-75 base-engine manufacturer graph at the same 55 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "sources": [
          {
            "title": "Volvo Penta D2-75 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709063",
            "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d3110",
      "manufacturer": "Volvo Penta",
      "model": "D3-110",
      "displayName": "Volvo Penta D3-110",
      "engineReferenceId": "volvo_d3_110",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 55",
          "yachtModelId": 104552,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2010. Only Fontnautic's 2010 Barcelona boat. This does not identify all five-cabin 2010 boats.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fontnautic: 2010 Bavaria Cruiser 55 in Barcelona",
              "url": "https://fontnautic.com/bavaria-cruiser-55/"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 56 Exclusive",
          "yachtModelId": 1374392,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Grabau's 2019 Dufour 56 Exclusive only; catalogue covers 2019, 2020 and 2023. No universal fit across those years is implied.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Grabau International: 2019 Dufour 56 Exclusive",
              "url": "https://www.grabauinternational.com/dompdf/dompdf.php?input_file=https%3A%2F%2Fwww.grabauinternational.com%2Fbrokerage_print_pdf.php%3Fid%3D3001239&out=2019-dufour-56-exclusive-3001239"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 520 GL",
          "yachtModelId": 3909307,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Abayachting's 2018 520 Grand Large - 520 GL example only; catalogue covers 2018/2019.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Abayachting: 2018 Dufour 520 Grand Large - 520 GL",
              "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-520-Grand-Large-520-Gl-usata-2018/jCBiFTTyf0mHTbe92Fh9gQ/v/bim/1"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 530",
          "yachtModelId": 10306351,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "2021 Port Saint Louis 530 example only; catalogue covers 2021-2025. HS63IV-E is a transmission, not part of the engine identity.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2021 Dufour 530 Grand Large, Port Saint Louis",
              "url": "https://www.boattrader.com/boat/2021-dufour-530-grand-large-8577668/"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 545",
          "yachtModelId": 478296,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Oceanis Yachts' Hanse 545 charter boat. Specification says 2011, matching registry year; page summary says 2010. Retain that dating discrepancy rather than asserting an exact production interval.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Oceanis Yachts: Hanse 545 charter specification",
              "url": "https://oceanis.it/en/yacht-charter/hanse-545/"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 575",
          "yachtModelId": 618360,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Navark's 2013 Hanse 575, outside registry years 2014-2016. Source writes D3-110HK, with HK denoting horsepower; no assumption that other years share it.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Navark: 2013 Hanse 575",
              "url": "https://www.navark.se/files/pdf/hanse-575-2013.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d3_110",
        "manufacturer": "Volvo Penta",
        "model": "D3-110",
        "manufacturerRatedPowerKw": 81,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 81 kW / 3000 RPM D3-110 I graph from the 12-2016 leaflet for this abbreviated base reference. It does not establish a particular hardware suffix. The separately identified D3-110 I reference retains its older published numeric table; editions are not blended.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
            "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
            "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d3110i",
      "manufacturer": "Volvo Penta",
      "model": "D3-110 I",
      "displayName": "Volvo Penta D3-110 I",
      "engineReferenceId": "review_volvo_d3110i_table",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "review_volvo_d3110i_table",
        "manufacturer": "Volvo Penta",
        "model": "D3-110 I",
        "manufacturerRatedPowerKw": 81,
        "manufacturerRatedRpm": 3000,
        "warning": false,
        "warningNote": "",
        "note": "D3-110 I, R5, 81 kW at 3000 RPM. Fuel samples are copied from Volvo technical sheet 21990131 issue 01 dated 2012-06-26, at calculated operating-load exponent 2.5. The separate full-load row is not substituted. Older publication values differ and are not averaged. Source-scoped numeric manufacturer load-table reference; not a measured boat trial or exact G-suffix calibration. Linear interpolation only from 700 to 3000 RPM, no extrapolation. The 3130-RPM load-table cell is blank and remains excluded. R5 is not an unrestricted continuous-duty rating.",
        "sources": [
          {
            "title": "Volvo Penta D3-110 I Technical Data, document 21990131, issue 01, 2012-06-26",
            "url": "https://www.dbmoteurs.fr/sites/default/files/t_d3_110_i_f_g--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: General, Rated speed R5; Performance, crankshaft kW at 3000 RPM; footer. PDF page 2: Fuel system, exponent-2.5 propeller-load and full-load l/h rows.",
            "evidence": "Printed model D3-110 I; R5; 81 kW at 3000 RPM. Numeric propeller-load fuel values are present at nine speeds through 3000 RPM. The full-load row is separate and extends to 3130 RPM. The filename's f_g text is not a printed suffix-applicability declaration.",
            "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta technical sheet on DB Moteurs mirror; all three pages extracted and pages 1-2 rendered in memory and visually inspected for columns, units, load and date.",
            "sha256": "907c21d79266e4b580f47fd2ecf9a708469f750caaf3e6d4654ffa5b5e20377d"
          },
          {
            "title": "Volvo Penta D3-110 I Technical Data, document 21760197, issue 01, 2011-06-14",
            "url": "https://sermakpower.com/brosur/keyif-tekne/t_d3_110.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: R5 rated speed, crankshaft power and footer. PDF page 2: Fuel system, exponent-2.5 propeller-load l/h row.",
            "evidence": "Earlier D3-110 I sheet also pairs 81 kW with 3000 RPM, but its numeric propeller-load fuel row differs from the 2012 edition. Preserve it as an alternative publication, not extra points to splice into the selected row.",
            "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta sheet on Sermak Power mirror; page 1 extracted and page 2 fuel-table area rendered in memory and visually checked.",
            "sha256": "85c5c34efe2d664cde8989a3a96d1e73b90f02a6eace07693f9a83b94187793e"
          },
          {
            "title": "Volvo Penta D3 French operator manual 47702806, 06-2013",
            "url": "https://manualzilla.com/doc/6385253/manuel-d-instructions",
            "kind": "manufacturer-document",
            "locator": "Printed page 139: Technical Data, D3-110i sales designation / D3-110i-G aftermarket designation, crankshaft and propeller-shaft columns.",
            "evidence": "Exact G row prints 82 kW crankshaft and 79 kW shaft. This table gives no model-specific rated RPM. It does not establish an exact G 82-kW/3000-RPM pair or resolve the difference from the nominal 81-kW D3-110 I technical sheets.",
            "access": "Original manufacturer manual reproduced as public HTML by Manualzilla; technical-data row and edition footer rechecked on 2026-10-17. No claim of new direct PDF retrieval."
          }
        ]
      }
    },
    {
      "id": "volvopenta-d3110ig",
      "manufacturer": "Volvo Penta",
      "model": "D3-110I-G",
      "displayName": "Volvo Penta D3-110I-G",
      "engineReferenceId": "review_volvo_d3110i_table",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Dufour",
          "model": "Dufour 560 GL",
          "yachtModelId": 1179831,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "2015 560 Grand Large example only; catalogue covers 2016. Exact I-G suffix is retained. Not the later 56 Exclusive, and not proof for the catalogue's individual 2016 boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2015 Dufour 560 Grand Large",
              "url": "https://www.inautia.com/boat/2015-dufour-560-grand-large-2015-9480677/"
            }
          ],
          "engineFamilyReference": {
            "family": "D3-110",
            "reportedModel": "D3-110I-G",
            "referenceModel": "D3-110 I",
            "referenceId": "review_volvo_d3110i_table",
            "basis": "reviewed-base-engine-family",
            "note": "Base-engine family reference: Volvo Penta D3-110, using the published 2012 D3-110 I fuel table at load exponent 2.5. The vessel's I-G label is preserved in the research data. Its G manual prints 82 kW versus this reference's 81 kW; no correction or exact-suffix equivalence is claimed. This is not a measured Dufour fuel test.",
            "sources": [
              {
                "title": "Volvo Penta D3-110 I Technical Data, document 21990131, issue 01, 2012-06-26",
                "url": "https://www.dbmoteurs.fr/sites/default/files/t_d3_110_i_f_g--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
                "kind": "manufacturer-document",
                "locator": "PDF page 1: General, Rated speed R5; Performance, crankshaft kW at 3000 RPM; footer. PDF page 2: Fuel system, exponent-2.5 propeller-load and full-load l/h rows.",
                "evidence": "Printed model D3-110 I; R5; 81 kW at 3000 RPM. Numeric propeller-load fuel values are present at nine speeds through 3000 RPM. The full-load row is separate and extends to 3130 RPM. The filename's f_g text is not a printed suffix-applicability declaration.",
                "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta technical sheet on DB Moteurs mirror; all three pages extracted and pages 1-2 rendered in memory and visually inspected for columns, units, load and date.",
                "sha256": "907c21d79266e4b580f47fd2ecf9a708469f750caaf3e6d4654ffa5b5e20377d"
              },
              {
                "title": "Volvo Penta D3-110 I Technical Data, document 21760197, issue 01, 2011-06-14",
                "url": "https://sermakpower.com/brosur/keyif-tekne/t_d3_110.pdf",
                "kind": "manufacturer-document",
                "locator": "PDF page 1: R5 rated speed, crankshaft power and footer. PDF page 2: Fuel system, exponent-2.5 propeller-load l/h row.",
                "evidence": "Earlier D3-110 I sheet also pairs 81 kW with 3000 RPM, but its numeric propeller-load fuel row differs from the 2012 edition. Preserve it as an alternative publication, not extra points to splice into the selected row.",
                "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta sheet on Sermak Power mirror; page 1 extracted and page 2 fuel-table area rendered in memory and visually checked.",
                "sha256": "85c5c34efe2d664cde8989a3a96d1e73b90f02a6eace07693f9a83b94187793e"
              },
              {
                "title": "Volvo Penta D3 French operator manual 47702806, 06-2013",
                "url": "https://manualzilla.com/doc/6385253/manuel-d-instructions",
                "kind": "manufacturer-document",
                "locator": "Printed page 139: Technical Data, D3-110i sales designation / D3-110i-G aftermarket designation, crankshaft and propeller-shaft columns.",
                "evidence": "Exact G row prints 82 kW crankshaft and 79 kW shaft. This table gives no model-specific rated RPM. It does not establish an exact G 82-kW/3000-RPM pair or resolve the difference from the nominal 81-kW D3-110 I technical sheets.",
                "access": "Original manufacturer manual reproduced as public HTML by Manualzilla; technical-data row and edition footer rechecked on 2026-10-17. No claim of new direct PDF retrieval."
              }
            ]
          }
        }
      ],
      "engineFamilyReference": {
        "family": "D3-110",
        "reportedModel": "D3-110I-G",
        "referenceModel": "D3-110 I",
        "referenceId": "review_volvo_d3110i_table",
        "basis": "reviewed-base-engine-family",
        "note": "Base-engine family reference: Volvo Penta D3-110, using the published 2012 D3-110 I fuel table at load exponent 2.5. The vessel's I-G label is preserved in the research data. Its G manual prints 82 kW versus this reference's 81 kW; no correction or exact-suffix equivalence is claimed. This is not a measured Dufour fuel test.",
        "sources": [
          {
            "title": "Volvo Penta D3-110 I Technical Data, document 21990131, issue 01, 2012-06-26",
            "url": "https://www.dbmoteurs.fr/sites/default/files/t_d3_110_i_f_g--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: General, Rated speed R5; Performance, crankshaft kW at 3000 RPM; footer. PDF page 2: Fuel system, exponent-2.5 propeller-load and full-load l/h rows.",
            "evidence": "Printed model D3-110 I; R5; 81 kW at 3000 RPM. Numeric propeller-load fuel values are present at nine speeds through 3000 RPM. The full-load row is separate and extends to 3130 RPM. The filename's f_g text is not a printed suffix-applicability declaration.",
            "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta technical sheet on DB Moteurs mirror; all three pages extracted and pages 1-2 rendered in memory and visually inspected for columns, units, load and date.",
            "sha256": "907c21d79266e4b580f47fd2ecf9a708469f750caaf3e6d4654ffa5b5e20377d"
          },
          {
            "title": "Volvo Penta D3-110 I Technical Data, document 21760197, issue 01, 2011-06-14",
            "url": "https://sermakpower.com/brosur/keyif-tekne/t_d3_110.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: R5 rated speed, crankshaft power and footer. PDF page 2: Fuel system, exponent-2.5 propeller-load l/h row.",
            "evidence": "Earlier D3-110 I sheet also pairs 81 kW with 3000 RPM, but its numeric propeller-load fuel row differs from the 2012 edition. Preserve it as an alternative publication, not extra points to splice into the selected row.",
            "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta sheet on Sermak Power mirror; page 1 extracted and page 2 fuel-table area rendered in memory and visually checked.",
            "sha256": "85c5c34efe2d664cde8989a3a96d1e73b90f02a6eace07693f9a83b94187793e"
          },
          {
            "title": "Volvo Penta D3 French operator manual 47702806, 06-2013",
            "url": "https://manualzilla.com/doc/6385253/manuel-d-instructions",
            "kind": "manufacturer-document",
            "locator": "Printed page 139: Technical Data, D3-110i sales designation / D3-110i-G aftermarket designation, crankshaft and propeller-shaft columns.",
            "evidence": "Exact G row prints 82 kW crankshaft and 79 kW shaft. This table gives no model-specific rated RPM. It does not establish an exact G 82-kW/3000-RPM pair or resolve the difference from the nominal 81-kW D3-110 I technical sheets.",
            "access": "Original manufacturer manual reproduced as public HTML by Manualzilla; technical-data row and edition footer rechecked on 2026-10-17. No claim of new direct PDF retrieval."
          }
        ]
      }
    },
    {
      "id": "volvopenta-d3150",
      "manufacturer": "Volvo Penta",
      "model": "D3-150",
      "displayName": "Volvo Penta D3-150",
      "engineReferenceId": "review_volvopenta_d3150",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Dufour",
          "model": "Dufour 56 Exclusive",
          "yachtModelId": 1374392,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Caraibe Yachts' separately documented sold 56 Exclusive only; build year not established from the cited engine passage, so no catalogue year is assigned to it.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Caraibe Yachts: Dufour 56 Exclusive sold vessel",
              "url": "https://www.caraibe-yachts.com/en/bateaux/sold/dufour-56-exclusive"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 575",
          "yachtModelId": 618360,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Solaris Yachts brokerage's 2015 Hanse 575. Registry covers 2014, 2015 and 2016. Source writes D3 150; punctuation normalized without changing identity.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Solaris Yachts brokerage: 2015 Hanse 575",
              "url": "https://www.solarisyachts.com/cms/wp-content/uploads/Hanse_575_Brokerage_EN_V2.pdf"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 588",
          "yachtModelId": 1360533,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only 2018 Magma, outside the registry's sampled years 2017, 2020, 2022, 2023, 2024 and 2025. Does not establish a Volvo installation for any of those individual boats.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2018 Hanse 588 Magma",
              "url": "https://www.devalk.nl/en/yachtbrokerage/812828/HANSE-588.html"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 620",
          "yachtModelId": 7768065,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2018, 2017. 2017 Grupo Marino Altamar vessel only; no conversion of other D3 family or 110 hp references into this engine model. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Grupo Marino Altamar: 2017 Lagoon 620 seller listing",
              "url": "https://www.boats.com/sailing-boats/2017-lagoon-620-9691067/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d3150",
        "manufacturer": "Volvo Penta",
        "model": "D3-150",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 110 kW / 3000 RPM D3-150 I manufacturer graph for the abbreviated D3-150 base label. No individual G/H suffix or installed-boat certification is implied.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
            "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
            "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d3150i",
      "manufacturer": "Volvo Penta",
      "model": "D3-150i",
      "displayName": "Volvo Penta D3-150i",
      "engineReferenceId": "review_volvopenta_d3150i",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Dufour",
          "model": "Dufour Exclusive 56",
          "yachtModelId": 1519916,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Yacht Broker House's 2017 Exclusive 56 in Corfu only. Catalogue covers 2017 and 2020; no automatic sharing with the separate normalized Dufour 56 Exclusive entry and no universal 2020 fit claim.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yacht Broker House: 2017 Dufour Exclusive 56, Corfu",
              "url": "https://www.boats.com/sailing-boats/2017-dufour-exclusive-56-10032440/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d3150i",
        "manufacturer": "Volvo Penta",
        "model": "D3-150i",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3000,
        "note": "D3-150 I manufacturer graph, English 12-2016, 110 kW / 3000 RPM. No individual G/H hardware suffix or installed-boat certification is implied.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
            "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
            "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d3150ih",
      "manufacturer": "Volvo Penta",
      "model": "D3-150I-H",
      "displayName": "Volvo Penta D3-150I-H",
      "engineReferenceId": "review_volvopenta_d3150i",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Sunreef",
          "model": "Sunreef 60",
          "yachtModelId": 7817754,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only Ledenko's 2023 sailing Sunreef 60. Registry years are 2020, 2022, 2025 and 2026; 2023 is outside its sampled coverage. Exact I-H suffix retained.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Ledenko: 2023 Sunreef 60 vessel specification",
              "url": "https://ledenko.ngncms.si/en/sail-boats/sunreef-60?f=print_page&type=pdf"
            }
          ],
          "engineFamilyReference": {
            "family": "D3-150",
            "reportedModel": "D3-150I-H",
            "referenceModel": "D3-150i",
            "referenceId": "review_volvopenta_d3150i",
            "basis": "reviewed-base-engine-family",
            "note": "Representative base-engine family reference: Volvo Penta D3-150 I, using the unchanged manufacturer 110 kW / 3000 RPM fuel graph, calculated propeller-load exponent 2.5. SRA explicitly includes D3-150I-H in this family. The vessel's H suffix remains in the research data; exact H calibration, serial-number applicability and equivalence to operator editions printing 111 kW are not established. No power-rescaling or averaging is used. The original 2023 vessel-only applicability remains unchanged. Both engines are included. Not measured Sunreef fuel use.",
            "sources": [
              {
                "title": "SRA Moteur: Volvo Penta D3-150 propulsion catalogue and hardware specification numbers",
                "url": "https://sra-moteur.com/fr/catalogue/1-moteurs/10-marine-commerciale/12-nouvelle-gamme/15-propulsion/247-d3-150",
                "kind": "engine-dealer-catalogue",
                "locator": "Technical table and Modeles / numeros de specifications",
                "evidence": "The dealer's D3-150 product record lists D3-150I-H specification number 40869574 alongside D/E/F/G variants, with base crankshaft rating 110 kW at 3000 RPM. This establishes an explicit family link, not identical H-suffix fuel calibration.",
                "access": "Dealer's own product page retrieved and full model/specification listing inspected on 2026-10-18."
              },
              {
                "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016, publication 47708878",
                "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                "kind": "manufacturer-document",
                "locator": "PDF page 1, D3-150 I technical data and Fuel consumption at calculated propeller load exp. 2.5",
                "evidence": "Manufacturer base-engine graph is already digitized at its printed 110 kW / 3000 RPM rating. It is reused unchanged as a representative reference only; no exact H-suffix fuel calibration or individual Sunreef installation measurement is asserted.",
                "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
                "access": "Original manufacturer PDF privately preserved, complete relevant pages inspected and graph digitized in the existing source archive; graph data unchanged by this family binding."
              }
            ]
          }
        }
      ],
      "engineFamilyReference": {
        "family": "D3-150",
        "reportedModel": "D3-150I-H",
        "referenceModel": "D3-150i",
        "referenceId": "review_volvopenta_d3150i",
        "basis": "reviewed-base-engine-family",
        "note": "Representative base-engine family reference: Volvo Penta D3-150 I, using the unchanged manufacturer 110 kW / 3000 RPM fuel graph, calculated propeller-load exponent 2.5. SRA explicitly includes D3-150I-H in this family. The vessel's H suffix remains in the research data; exact H calibration, serial-number applicability and equivalence to operator editions printing 111 kW are not established. No power-rescaling or averaging is used. The original 2023 vessel-only applicability remains unchanged. Both engines are included. Not measured Sunreef fuel use.",
        "sources": [
          {
            "title": "SRA Moteur: Volvo Penta D3-150 propulsion catalogue and hardware specification numbers",
            "url": "https://sra-moteur.com/fr/catalogue/1-moteurs/10-marine-commerciale/12-nouvelle-gamme/15-propulsion/247-d3-150",
            "kind": "engine-dealer-catalogue",
            "locator": "Technical table and Modeles / numeros de specifications",
            "evidence": "The dealer's D3-150 product record lists D3-150I-H specification number 40869574 alongside D/E/F/G variants, with base crankshaft rating 110 kW at 3000 RPM. This establishes an explicit family link, not identical H-suffix fuel calibration.",
            "access": "Dealer's own product page retrieved and full model/specification listing inspected on 2026-10-18."
          },
          {
            "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016, publication 47708878",
            "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1, D3-150 I technical data and Fuel consumption at calculated propeller load exp. 2.5",
            "evidence": "Manufacturer base-engine graph is already digitized at its printed 110 kW / 3000 RPM rating. It is reused unchanged as a representative reference only; no exact H-suffix fuel calibration or individual Sunreef installation measurement is asserted.",
            "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
            "access": "Original manufacturer PDF privately preserved, complete relevant pages inspected and graph digitized in the existing source archive; graph data unchanged by this family binding."
          }
        ]
      }
    },
    {
      "id": "volvopenta-d3220",
      "manufacturer": "Volvo Penta",
      "model": "D3-220",
      "displayName": "Volvo Penta D3-220",
      "engineReferenceId": "review_volvopenta_d3220",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot MY 37",
          "yachtModelId": 1163421,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2018, 2015. De Valk vessel with engines installed in 2017, outside the catalogue's 2015/2018 build years; no cross-year factory assertion. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Fountaine Pajot MY 37, reference 811803",
              "url": "https://www.devalk.nl/en/brochure_full/811803/FOUNTAINE-PAJOT-MY-37.html"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d3220",
        "manufacturer": "Volvo Penta",
        "model": "D3-220",
        "manufacturerRatedPowerKw": 162,
        "manufacturerRatedRpm": 4000,
        "note": "Source-scoped D3-220 I manufacturer fuel graph, English 07-2013, 162 kW / 4000 RPM, R5, calculated propeller-load exponent 2.5. The boat's abbreviated D3-220 identity does not certify an exact hardware suffix or calibration. Not the 164 kW D3-220i-G. No power-rescaling or cross-edition blending.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-170,200,220",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d3-220-d3-220.pdf",
            "sha256": "a8cd79187b3c2d990738cb65ae7f076ee28a4d18d91517caaf66fb8590d4cf6c",
            "page": 1,
            "edition": "English 07-2013; copyright 2013 AB Volvo Penta, printed on page 2",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d4175",
      "manufacturer": "Volvo Penta",
      "model": "D4-175",
      "displayName": "Volvo Penta D4-175",
      "engineReferenceId": "review_volvopenta_d4175",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Lagoon",
          "model": "Lagoon Sixty 5",
          "yachtModelId": 12782297,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2024, 2021. Separately documented 2021 sailing SIXTY 5 only; independent observed alternative. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker seller listing: 2021 Lagoon SIXTY 5",
              "url": "https://www.boattrader.com/boat/2021-lagoon-sixty-5-10143023//"
            }
          ]
        },
        {
          "brand": "Sunreef",
          "model": "Sunreef 60",
          "yachtModelId": 7817754,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only 2020 Vulpino, a sailing Sunreef 60, not Sunreef 60 Power. Registry covers 2020, 2022, 2025 and 2026. Operator's drive-type field is questionable, but model and count are explicit; not generalized to other years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Ocean Sailing House: 2020 Sunreef 60 Vulpino",
              "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-60/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d4175",
        "manufacturer": "Volvo Penta",
        "model": "D4-175",
        "manufacturerRatedPowerKw": 129,
        "manufacturerRatedRpm": 2800,
        "note": "Uses the 129 kW / 2800 RPM D4-175 I manufacturer graph for the abbreviated inboard D4-175 label. This is not the D4-180 curve.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D4-175/230, English 05-2021",
            "url": "https://irp.cdn-website.com/dca030c4/files/uploaded/D4-175_230_v1.pdf",
            "sha256": "2c560c2eafde28e363997d65db6c025e91391f965c1d49240f2fbf84c3967b04",
            "page": 1,
            "edition": "English 05-2021",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d4180",
      "manufacturer": "Volvo Penta",
      "model": "D4-180",
      "displayName": "Volvo Penta D4-180",
      "engineReferenceId": "review_volvopenta_d4180",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Jeanneau",
          "model": "Jeanneau 64",
          "yachtModelId": 23986641,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Jeanneau 64 manufacturer equipment inventory available in the 2019-era archive, not the later Jeanneau 65. Catalogue years 2016 and 2019 still require individual engine-plate confirmation. Catalogue build years reviewed: 2016, 2019.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau 64 manufacturer inventory: ENGINE & THRUSTER",
              "url": "https://app.jeanneau.com/inventory/17919"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d4180",
        "manufacturer": "Volvo Penta",
        "model": "D4-180",
        "manufacturerRatedPowerKw": 132,
        "manufacturerRatedRpm": 2800,
        "warning": true,
        "warningNote": "Rating assumption: Numeric 2012-08-21 issue-01 cubic propeller-load table, not a BSFC-generated estimate. Generic label is represented only by the explicitly selected D4-180 I edition. The undated sheet has different fuel values; installed suffix/calibration not established.",
        "note": "Numeric 2012-08-21 issue-01 cubic propeller-load table, not a BSFC-generated estimate. Generic label is represented only by the explicitly selected D4-180 I edition. The undated sheet has different fuel values; installed suffix/calibration not established. Source-scoped manufacturer numeric reference at the published cubic operating-load condition. The installed engine edition and calibration have not been established; the separate older table differs. Linear interpolation only within 1000-2800 RPM, with no extrapolation. This is not measured boat consumption or proof of the selected boat's actual load.",
        "sources": [
          {
            "title": "Volvo Penta D4-180 I Technical Data 21954790, issue 01, 2012-08-21",
            "url": "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: R4, 132 kW, rated speed 2800 RPM. PDF page 2: Fuel system, RPM columns 1000/1500/2000/2500/2800, l/h row Fuel consumption at prop. load x 3.",
            "evidence": "Cubic-load row: 2.3/5.7/12.5/24.3/34.7 L/h. The distinct exponent-2.5 row is 3.3/7.4/14.6/25.6/34.7. Neither is a boat trial.",
            "access": "Original manufacturer technical sheet mirrored by DB Moteurs. PDF text extracted; complete page 2 rendered in memory and visually inspected for rows, units, edition and column alignment.",
            "sha256": "dbf6dbb024a91f32f47fee79907d7c6da9752eae9a33cb097e36d13c6abc49d4"
          },
          {
            "title": "Volvo Penta Technical Data D4-180, undated 64070S03(1).xls export",
            "url": "https://sermakpower.com/brosur/keyif-tekne/t_d4_180.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2, Fuel system, cubic propeller-load l/h row under RPM 1000/1500/2000/2500/2800.",
            "evidence": "Older sheet gives 2.0/5.4/12.5/23.5/33.7 L/h, differing from issue 01 dated 2012. Its precise printed edition is absent; not selected as the primary curve.",
            "access": "Original manufacturer sheet on Sermak Power mirror; direct in-memory PDF extraction and hash. Metadata creation 2005-11-30 and modification 2008-12-05 are file dates, not asserted publication dates.",
            "sha256": "a6deb81831deac18bbd7826f7851397cb69e99155256574e0b4fc2006c33bb83"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d4180i",
      "manufacturer": "Volvo Penta",
      "model": "D4-180 I",
      "displayName": "Volvo Penta D4-180 I",
      "engineReferenceId": "review_volvopenta_d4180i",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Lagoon",
          "model": "Lagoon 77",
          "yachtModelId": 10100280,
          "engineCount": 2,
          "configuration": "published-standard",
          "applicability": "Catalogue build year: 2019. Exact standard engine designation in Lagoon's September 2016 Seventy 7 technical handbook, pages 8-9, for that published generation only; not proof of a particular 2019 hull's installation or continued standard fit in every later year. The 2019 operator sources cat-lag77 and cat-lag77-conflict give conflicting maker/power descriptions without a complete exact model and do not independently resolve that hull.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lagoon Seventy 7 technical handbook, September 2016, manufacturer document reproduction",
              "url": "https://manualzz.com/doc/58479554/lagoon-seventy-7-technical-handbook"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d4180i",
        "manufacturer": "Volvo Penta",
        "model": "D4-180 I",
        "manufacturerRatedPowerKw": 132,
        "manufacturerRatedRpm": 2800,
        "warning": true,
        "warningNote": "Rating assumption: Published numeric operating-load row for the stated inboard sales designation. 2012 issue-01 table is source-scoped; the older undated sheet differs. Neither identifies the installed hardware suffix or reports boat measurements.",
        "note": "Published numeric operating-load row for the stated inboard sales designation. 2012 issue-01 table is source-scoped; the older undated sheet differs. Neither identifies the installed hardware suffix or reports boat measurements. Source-scoped manufacturer numeric reference at the published cubic operating-load condition. The installed engine edition and calibration have not been established; the separate older table differs. Linear interpolation only within 1000-2800 RPM, with no extrapolation. This is not measured boat consumption or proof of the selected boat's actual load.",
        "sources": [
          {
            "title": "Volvo Penta D4-180 I Technical Data 21954790, issue 01, 2012-08-21",
            "url": "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: R4, 132 kW, rated speed 2800 RPM. PDF page 2: Fuel system, RPM columns 1000/1500/2000/2500/2800, l/h row Fuel consumption at prop. load x 3.",
            "evidence": "Cubic-load row: 2.3/5.7/12.5/24.3/34.7 L/h. The distinct exponent-2.5 row is 3.3/7.4/14.6/25.6/34.7. Neither is a boat trial.",
            "access": "Original manufacturer technical sheet mirrored by DB Moteurs. PDF text extracted; complete page 2 rendered in memory and visually inspected for rows, units, edition and column alignment.",
            "sha256": "dbf6dbb024a91f32f47fee79907d7c6da9752eae9a33cb097e36d13c6abc49d4"
          },
          {
            "title": "Volvo Penta Technical Data D4-180, undated 64070S03(1).xls export",
            "url": "https://sermakpower.com/brosur/keyif-tekne/t_d4_180.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2, Fuel system, cubic propeller-load l/h row under RPM 1000/1500/2000/2500/2800.",
            "evidence": "Older sheet gives 2.0/5.4/12.5/23.5/33.7 L/h, differing from issue 01 dated 2012. Its precise printed edition is absent; not selected as the primary curve.",
            "access": "Original manufacturer sheet on Sermak Power mirror; direct in-memory PDF extraction and hash. Metadata creation 2005-11-30 and modification 2008-12-05 are file dates, not asserted publication dates.",
            "sha256": "a6deb81831deac18bbd7826f7851397cb69e99155256574e0b4fc2006c33bb83"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d4180if",
      "manufacturer": "Volvo Penta",
      "model": "D4-180I-F",
      "displayName": "Volvo Penta D4-180I-F",
      "engineReferenceId": "review_volvopenta_d4180if",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Dufour",
          "model": "Dufour Exclusive 63",
          "yachtModelId": 5451700,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Bach Yachting's 2018 63 Exclusive only. Catalogue covers 2018; exact I-F suffix is retained and the 180 hp figure alone is not the basis for the match.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bach Yachting: 2018 Dufour 63 Exclusive",
              "url": "https://www.bachyachting.com/boat/sailboat-dufour_63_exclusive-2018-for_sale-475723"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d4180if",
        "manufacturer": "Volvo Penta",
        "model": "D4-180I-F",
        "manufacturerRatedPowerKw": 132,
        "manufacturerRatedRpm": 2800,
        "note": "Representative D4-180 I manufacturer graph, English 12-2016, 132 kW / 2800 RPM, calculated propeller-load exponent 3. The installed F identity is retained; exact F-suffix fuel calibration is not separately established. This source does not replace or blend the earlier published D4-180 numeric-table references. Not measured boat fuel use.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D4-180",
            "url": "https://navaboats.com/wp-content/uploads/2022/11/D4-180.pdf",
            "sha256": "2f350fea83cb7e5815f63e47c2ceee22f062ee213a3974f2261f68208b8f4517",
            "page": 1,
            "edition": "English 12-2016; copyright 2016 AB Volvo Penta, printed on page 2",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d6300",
      "manufacturer": "Volvo Penta",
      "model": "D6-300",
      "displayName": "Volvo Penta D6-300",
      "engineReferenceId": "review_volvo_d6ips400",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot MY5",
          "yachtModelId": 23569310,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2022. Baotic's 2022 MY5 listing names IPS400 D6-300; record the D6-300 engine, not IPS400 alone. Not automatically the MY40 or MY6. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Baotic Yachting: 2022 Fountaine Pajot MY5 seller listing",
              "url": "https://www.boatshop24.com/de/boot/2022-fountaine-pajot-my5-7868354/"
            }
          ],
          "engineFamilyReference": {
            "family": "D6-300 (IPS400)",
            "reportedModel": "D6-300",
            "referenceModel": "D6-IPS400",
            "referenceId": "review_volvo_d6ips400",
            "basis": "reviewed-base-engine-family",
            "note": "Base-engine family reference: the documented MY5 IPS400 / D6-300 label uses the digitized D6-IPS400 manufacturer fuel graph, 221 kW at 3300 RPM. This keeps the correct six-cylinder IPS application rather than the different 3500-RPM inboard reference. It is a representative base-engine graph, not a published numeric table or a measured MY5 test. Both engines are included.",
            "sources": [
              {
                "title": "Volvo Penta Inboard Performance System D6-IPS 400/450/500/600/650, English 12-2019",
                "url": "https://vp-service.dk/wp-content/uploads/2024/02/297_47711958-en-d6-400-450-500-600-650-5.pdf",
                "kind": "manufacturer-document",
                "locator": "PDF page 1: Technical Data, D6-IPS400 column, crankshaft/propshaft power, speed, displacement and rating; fuel-chart caption and duty footnote. Page 2: printed edition footer.",
                "evidence": "D6-IPS400: 221 kW crankshaft, 212 kW propshaft, 3300 RPM, six cylinders, 5.5 litres, R4. Fuel is shown only as an exponent-2.5 calculated-propeller-load chart; neither a numeric fuel table nor a printed numeric rated-fuel endpoint is supplied.",
                "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta leaflet on VP-Service mirror; both complete pages extracted, rendered in memory and visually inspected. Printed date is 12-2019, not the URL upload date.",
                "sha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70"
              }
            ]
          }
        }
      ],
      "engineFamilyReference": {
        "family": "D6-300 (IPS400)",
        "reportedModel": "D6-300",
        "referenceModel": "D6-IPS400",
        "referenceId": "review_volvo_d6ips400",
        "basis": "reviewed-base-engine-family",
        "note": "Base-engine family reference: the documented MY5 IPS400 / D6-300 label uses the digitized D6-IPS400 manufacturer fuel graph, 221 kW at 3300 RPM. This keeps the correct six-cylinder IPS application rather than the different 3500-RPM inboard reference. It is a representative base-engine graph, not a published numeric table or a measured MY5 test. Both engines are included.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Performance System D6-IPS 400/450/500/600/650, English 12-2019",
            "url": "https://vp-service.dk/wp-content/uploads/2024/02/297_47711958-en-d6-400-450-500-600-650-5.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: Technical Data, D6-IPS400 column, crankshaft/propshaft power, speed, displacement and rating; fuel-chart caption and duty footnote. Page 2: printed edition footer.",
            "evidence": "D6-IPS400: 221 kW crankshaft, 212 kW propshaft, 3300 RPM, six cylinders, 5.5 litres, R4. Fuel is shown only as an exponent-2.5 calculated-propeller-load chart; neither a numeric fuel table nor a printed numeric rated-fuel endpoint is supplied.",
            "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta leaflet on VP-Service mirror; both complete pages extracted, rendered in memory and visually inspected. Printed date is 12-2019, not the URL upload date.",
            "sha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70"
          }
        ]
      }
    },
    {
      "id": "volvopenta-d6ips400",
      "manufacturer": "Volvo Penta",
      "model": "D6-IPS400",
      "displayName": "Volvo Penta D6-IPS400",
      "engineReferenceId": "review_volvo_d6ips400",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "review_volvo_d6ips400",
        "manufacturer": "Volvo Penta",
        "model": "D6-IPS400",
        "manufacturerRatedPowerKw": 221,
        "manufacturerRatedRpm": 3300,
        "note": "D6-IPS400 six-cylinder 5.5-litre IPS10 graph, English 12-2019, 221 kW / 3300 RPM. Not the older four-cylinder IPS400 or D6-300 shaft-drive engine.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Performance System D6-IPS 400/450/500/600/650, English 12-2019",
            "url": "https://vp-service.dk/wp-content/uploads/2024/02/297_47711958-en-d6-400-450-500-600-650-5.pdf",
            "sha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70",
            "page": 1,
            "edition": "English 12-2019",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "volvopenta-md2020",
      "manufacturer": "Volvo Penta",
      "model": "MD2020",
      "displayName": "Volvo Penta MD2020",
      "engineReferenceId": "volvo_md2020",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "volvo_md2020",
        "manufacturer": "Volvo Penta",
        "model": "MD2020",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3600,
        "warning": false,
        "warningNote": "",
        "note": "MD2020 planning reference uses the published 13.8 kW crankshaft rating and 3600 RPM, the upper endpoint of the manufacturer's 3200-3600 full-throttle range. The selected boat's actual maximum RPM has not been measured. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2020 manufacturer product bulletin, April 2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2020.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2: Technical Data and calculated-load power diagram",
            "evidence": "Manufacturer bulletin gives 13.8 kW at the crankshaft, 13.3 kW at the shaft and a 3200-3600 RPM full-throttle range. Its power-load diagram uses exponent 3.0; it is not a fuel-use table.",
            "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026."
          }
        ]
      }
    },
    {
      "id": "volvopenta-md2030",
      "manufacturer": "Volvo Penta",
      "model": "MD2030",
      "displayName": "Volvo Penta MD2030",
      "engineReferenceId": "volvo_md2030",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "volvo_md2030",
        "manufacturer": "Volvo Penta",
        "model": "MD2030",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3600,
        "warning": false,
        "warningNote": "",
        "note": "MD2030 planning reference uses the published 20.9 kW crankshaft rating and 3600 RPM, the upper endpoint of the manufacturer's 3200-3600 full-throttle range. Generic model evidence does not identify an individual installation's suffix or measured maximum RPM. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2030 manufacturer product bulletin, April 2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2030.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2: Technical Data and calculated-load power diagram",
            "evidence": "Manufacturer bulletin gives 20.9 kW crankshaft output, 20.2 kW shaft output and a 3200-3600 RPM full-throttle range. The diagram is calculated load with exponent 3.0, not measured consumption.",
            "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026."
          }
        ]
      }
    },
    {
      "id": "volvopenta-md2030d",
      "manufacturer": "Volvo Penta",
      "model": "MD2030D",
      "displayName": "Volvo Penta MD2030D",
      "engineReferenceId": "volvo_md2030d",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "volvo_md2030d",
        "manufacturer": "Volvo Penta",
        "model": "MD2030D",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3600,
        "warning": false,
        "warningNote": "",
        "note": "D suffix is retained in a separate planning reference. The D-version operator manual refers power to sales literature; the contemporary MD2030 bulletin provides 20.9 kW. 3600 RPM is the published WOT range's upper endpoint, not a measured maximum for the boat. No manufacturer-measured D-version consumption curve was obtained. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2010/2020/2030/2040 operator manual 7744509",
            "url": "https://sundet.dk/wp-content/uploads/2025/12/Motor-Volvo-Penta-Operators-manual-7744509_EN.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF pages 22 and 55: WOT range and Technical Data",
            "evidence": "Technical Data explicitly lists MD2030-D and 850 +/-25 RPM idle; power is referred to sales literature. The operation section gives the MD2010-2040 range as 3200-3600 RPM. The contemporary product bulletin supplies the power rating; this is not a separate measured D-version fuel curve.",
            "access": "Original manufacturer manual on sailing-club archive, PDF text retrieved; a later image request encountered host verification."
          },
          {
            "title": "Volvo Penta MD2030 manufacturer product bulletin, April 2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2030.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2: Technical Data and calculated-load power diagram",
            "evidence": "Manufacturer bulletin gives 20.9 kW crankshaft output, 20.2 kW shaft output and a 3200-3600 RPM full-throttle range. The diagram is calculated load with exponent 3.0, not measured consumption.",
            "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026."
          }
        ]
      }
    },
    {
      "id": "volvopenta-md2040",
      "manufacturer": "Volvo Penta",
      "model": "MD2040",
      "displayName": "Volvo Penta MD2040",
      "engineReferenceId": "review_volvopenta_md2040",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "review_volvopenta_md2040",
        "manufacturer": "Volvo Penta",
        "model": "MD2040",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3600,
        "warning": true,
        "warningNote": "Rating assumption: Published generic MD2040 crankshaft rating; normalize at the upper 3600-RPM endpoint of 3200-3600. Generic label does not establish installed hardware suffix, actual maximum RPM or measured boat fuel use.",
        "note": "Published generic MD2040 crankshaft rating; normalize at the upper 3600-RPM endpoint of 3200-3600. Generic label does not establish installed hardware suffix, actual maximum RPM or measured boat fuel use. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2040 product bulletin, 04-2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2040.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2, Technical Data: crankshaft output / full-throttle operating speed.",
            "evidence": "MD2040: 29.1 kW crankshaft, 28.3 kW shaft, 3200-3600 RPM full-throttle range. Power-load diagram is not a numeric fuel table.",
            "access": "Original manufacturer bulletin on Marine Parts Express dealer archive; web PDF extraction reviewed."
          }
        ]
      }
    },
    {
      "id": "yanmar-2gm20f",
      "manufacturer": "Yanmar",
      "model": "2GM20F",
      "displayName": "Yanmar 2GM20F",
      "engineReferenceId": "review_yanmar_2gm20f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Elan",
          "model": "Elan 333",
          "yachtModelId": 253,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Yachtlink vessel sheet only; build year not established from the indexed passage. Catalogue covers 2003/2004, so neither year is individually verified. Not the older Elan 33.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yachtlink: Elan 333 vessel particulars",
              "url": "https://www.yachtlink.be/print/pdf/node/196"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_2gm20f",
        "manufacturer": "Yanmar",
        "model": "2GM20F",
        "manufacturerRatedPowerKw": 13.4,
        "manufacturerRatedRpm": 3600,
        "note": "Exact 2GM20F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. The brochure rounds power to 13 kW; the precise 13.4 kW / 3600 RPM operation-manual rating is retained. Fuel ordinates are digitized as printed, not power-rescaled. Not FV/FC or a boat test.",
        "sources": [
          {
            "title": "Yanmar GM series manufacturer brochure, The Auxiliary Engine of Choice",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/123%20GM%20INBOARD.pdf",
            "sha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
            "page": 2,
            "edition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-2ym15",
      "manufacturer": "Yanmar",
      "model": "2YM15",
      "displayName": "Yanmar 2YM15",
      "engineReferenceId": "yanmar_2ym15",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "First 27",
          "yachtModelId": 31873167,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Dataset year: 2022. Modern Seascape-derived First 27, fixed-keel inboard version. The manufacturer equipment list explicitly separates First 27 from First 27 SE. Not the 1970s/1980s First 27 or an SE outboard installation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau First 27 / First 27 SE general equipment list, North America",
              "url": "https://signature-yachts.com/wp-content/uploads/2023/03/First-27SE-specs.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 30.1",
          "yachtModelId": 10238965,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Separate 2019-listed inland-waterways-only version. Its navigation restriction must not be dropped or treated as the general seagoing specification.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 30.1 retail list dated 1 October 2019",
              "url": "https://www.yachtingstargroup.com/wp-content/uploads/2020/04/Listino-30.1.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_2ym15",
        "manufacturer": "Yanmar",
        "model": "2YM15",
        "manufacturerRatedPowerKw": 10,
        "manufacturerRatedRpm": 3600,
        "note": "Yanmar 2YM15 manufacturer fuel graph, 10 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used.",
        "sources": [
          {
            "title": "Yanmar 2YM15 Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_2YM15_A4_022021_HR.pdf",
            "sha256": "915fb11655bc70dee066f3c84fa54955b279fb993b7fee80204c7a2010e7b372",
            "page": 2,
            "edition": "DS_2YM15_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-3gm30f",
      "manufacturer": "Yanmar",
      "model": "3GM30F",
      "displayName": "Yanmar 3GM30F",
      "engineReferenceId": "review_yanmar_3gm30f",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis Clipper 323",
          "yachtModelId": 100306,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2004. BJ Marine's individual 2004 lifting-keel Clipper 323. The seller prints 3gm30f; only case is normalized. No claim that all 2004 boats have this rather than another installation.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "BJ Marine Pwllheli: 2004 Oceanis Clipper 323, seller listing",
              "url": "https://www.yachtworld.it/yacht/2004-beneteau-oceanis-clipper-323-10178277/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 35",
          "yachtModelId": 57,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Coneys Marine's 2003 Sun Odyssey 35 example. The F suffix is explicitly present in the seller's description; do not infer it for other 35s. Catalogue build years reviewed: 2003.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Coneys Marine: 2003 Jeanneau Sun Odyssey 35",
              "url": "https://www.boattrader.com/boat/2003-jeanneau-sun-odyssey-35-10176244/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_3gm30f",
        "manufacturer": "Yanmar",
        "model": "3GM30F",
        "manufacturerRatedPowerKw": 20.1,
        "manufacturerRatedRpm": 3600,
        "note": "Exact 3GM30F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. Brochure rounded 20 kW and operation-manual precise 20.1 kW / 3600 RPM are distinguished; no fuel rescaling. Not FV/FC or 3YM30; actual installed-boat fuel use varies.",
        "sources": [
          {
            "title": "Yanmar GM series manufacturer brochure, The Auxiliary Engine of Choice",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/123%20GM%20INBOARD.pdf",
            "sha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
            "page": 2,
            "edition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-3jh4e",
      "manufacturer": "Yanmar",
      "model": "3JH4E",
      "displayName": "Yanmar 3JH4E",
      "engineReferenceId": "yanmar_3jh4e",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Hanse",
          "model": "Hanse 430 E",
          "yachtModelId": 8066657,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only De Valk's 2008 epoxy Hanse 430E, matching registry year 2008. Source formats the code as 3JH4 E; only whitespace is normalized.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2008 Hanse 430E",
              "url": "https://www.devalk.nl/en/yachtbrokerage/300537/HANSE-430E.html"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3jh4e",
        "manufacturer": "Yanmar",
        "model": "3JH4E",
        "manufacturerRatedPowerKw": 29.4,
        "manufacturerRatedRpm": 3000,
        "sourceIds": [
          "jh-4-old"
        ],
        "note": "The historical manual lists 29.4 and 28.7 kW under different fuel-test conditions. The supplied estimate uses 29.4 kW; operating-condition differences remain relevant.",
        "sources": [
          {
            "title": "YANMAR JH4 operation manual, 2006 revision",
            "url": "https://www.yanmar.fi/content/download/14006/102939/file/JH4_OM_Rev_01_18DEC06.pdf",
            "locator": "Printed page 87, 3JH4E Engine Specifications",
            "access": "Search-indexed manufacturer manual; direct browser fetch failed during review"
          }
        ]
      }
    },
    {
      "id": "yanmar-3jh5",
      "manufacturer": "Yanmar",
      "model": "3JH5",
      "displayName": "Yanmar 3JH5",
      "engineReferenceId": "review_yanmar_3jh5_family",
      "curveAvailable": true,
      "boats": [],
      "ratingReview": {
        "referenceId": "review_yanmar_3jh5_family",
        "manufacturer": "Yanmar",
        "model": "3JH5",
        "manufacturerRatedPowerKw": 28.7,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 28.7 kW / 3000 RPM 3JH5E manufacturer graph for the reviewed 3JH5 base family. The reported ACE saildrive variant remains a representative family match, not independently certified by this graph.",
        "sources": [
          {
            "title": "Yanmar 3JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH5_A4_022021_HR.pdf",
            "sha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
            "page": 2,
            "edition": "DS_3JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-3jh5ace",
      "manufacturer": "Yanmar",
      "model": "3JH5ACE",
      "displayName": "Yanmar 3JH5ACE",
      "engineReferenceId": "review_yanmar_3jh5_family",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Lagoon",
          "model": "Lagoon 400",
          "yachtModelId": 115072,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2012, 2011. Lighthouse Yachting's 2011 Lagoon 400 only; preserve ACE suffix and do not transfer to 400 S2. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lighthouse Yachting: 2011 Lagoon 400 owner's version",
              "url": "https://www.lighthouseyachting.com/lagoon-400---2011"
            }
          ],
          "engineFamilyReference": {
            "family": "3JH5",
            "reportedModel": "3JH5ACE",
            "referenceModel": "3JH5",
            "referenceId": "review_yanmar_3jh5_family",
            "basis": "reviewed-base-engine-family",
            "note": "Base-engine family reference: Yanmar 3JH5, using the digitized 3JH5E manufacturer fuel graph at 28.7 kW / 3000 RPM. The vessel source's 3JH5ACE spelling is retained in the research data. This is a representative base-engine curve, not an exact ACE calibration or a measured Lagoon fuel test. Both engines are included.",
            "sources": [
              {
                "title": "YANMAR JH Series Operation Manual, 0AJHM-EN0025, December 2019",
                "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0AJHM-EN0025_2019.12.pdf",
                "kind": "manufacturer-document",
                "locator": "Specifications, printed page 98, 3JH5E / 3JH5AE Engines",
                "evidence": "Manufacturer groups 3JH5E and 3JH5AE together: crankshaft fuel-stop power 28.7 kW at 3000 RPM; continuous 26.1 kW at 2907 RPM. Engine output must not be confused with shaft output.",
                "access": "Manufacturer-hosted document; complete specification row retrieved through indexed PDF text on 2026-10-17."
              },
              {
                "title": "YANMAR SD60 Operation Manual, 0ASDM-EN0023, May 2018",
                "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0023_2018.05.pdf",
                "kind": "manufacturer-document",
                "locator": "Specifications, printed page 37 / PDF page 41, Applicable engine model rows",
                "evidence": "3JH5CE and 3JH5AE-C are explicitly listed at 28.7 kW / 3000 RPM, and 4JH57-C at 41.9 kW / 3000 RPM. This supports a family-level rating reference, not proof that every ACE/CE commercial label is a universal manufacturer alias or has identical boat fuel use.",
                "access": "Manufacturer-hosted PDF and model-specific indexed table retrieved on 2026-10-17."
              },
              {
                "title": "YANMAR Marine International: 3JH5E",
                "url": "https://www.yanmar.com/marine/product/engines/3jh5e/",
                "kind": "manufacturer-document",
                "locator": "Specifications: rated output and rated speed",
                "evidence": "28.7 kW / 39 metric hp at 3000 RPM for the 3JH5E. No numeric RPM/L/h operating table is stated on the page.",
                "access": "Current manufacturer product page retrieved on 2026-10-17."
              }
            ]
          }
        }
      ],
      "engineFamilyReference": {
        "family": "3JH5",
        "reportedModel": "3JH5ACE",
        "referenceModel": "3JH5",
        "referenceId": "review_yanmar_3jh5_family",
        "basis": "reviewed-base-engine-family",
        "note": "Base-engine family reference: Yanmar 3JH5, using the digitized 3JH5E manufacturer fuel graph at 28.7 kW / 3000 RPM. The vessel source's 3JH5ACE spelling is retained in the research data. This is a representative base-engine curve, not an exact ACE calibration or a measured Lagoon fuel test. Both engines are included.",
        "sources": [
          {
            "title": "YANMAR JH Series Operation Manual, 0AJHM-EN0025, December 2019",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0AJHM-EN0025_2019.12.pdf",
            "kind": "manufacturer-document",
            "locator": "Specifications, printed page 98, 3JH5E / 3JH5AE Engines",
            "evidence": "Manufacturer groups 3JH5E and 3JH5AE together: crankshaft fuel-stop power 28.7 kW at 3000 RPM; continuous 26.1 kW at 2907 RPM. Engine output must not be confused with shaft output.",
            "access": "Manufacturer-hosted document; complete specification row retrieved through indexed PDF text on 2026-10-17."
          },
          {
            "title": "YANMAR SD60 Operation Manual, 0ASDM-EN0023, May 2018",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0023_2018.05.pdf",
            "kind": "manufacturer-document",
            "locator": "Specifications, printed page 37 / PDF page 41, Applicable engine model rows",
            "evidence": "3JH5CE and 3JH5AE-C are explicitly listed at 28.7 kW / 3000 RPM, and 4JH57-C at 41.9 kW / 3000 RPM. This supports a family-level rating reference, not proof that every ACE/CE commercial label is a universal manufacturer alias or has identical boat fuel use.",
            "access": "Manufacturer-hosted PDF and model-specific indexed table retrieved on 2026-10-17."
          },
          {
            "title": "YANMAR Marine International: 3JH5E",
            "url": "https://www.yanmar.com/marine/product/engines/3jh5e/",
            "kind": "manufacturer-document",
            "locator": "Specifications: rated output and rated speed",
            "evidence": "28.7 kW / 39 metric hp at 3000 RPM for the 3JH5E. No numeric RPM/L/h operating table is stated on the page.",
            "access": "Current manufacturer product page retrieved on 2026-10-17."
          }
        ]
      }
    },
    {
      "id": "yanmar-3jh5e",
      "manufacturer": "Yanmar",
      "model": "3JH5E",
      "displayName": "Yanmar 3JH5E",
      "engineReferenceId": "yanmar_3jh5e",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 41",
          "yachtModelId": 515077,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2014, 2013. Evidence is Flagstaff's specific 2013 Oceanis 41, HIN FRSPBDC159F313. Not Oceanis 41.1 and not proof of a universal 2014 specification.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Flagstaff Marine: Beneteau Oceanis 41, 2013 specification",
              "url": "https://flagstaffmarine.com.au/wp-content/themes/marine/pdf-converter/specifications.php?boat_id=323597"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 418",
          "yachtModelId": 4487088,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the Lelystad vessel with engine year 2019. Registry includes 2019 among its 2018-2025 sampled years. Retain the older 3JH5E identity; do not rewrite as 3JH40 from equal power.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lelystad Yachtshift: 2019 Hanse 418",
              "url": "https://lelystad.yachtshift.nl/179/hanse-418"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 400 S2",
          "yachtModelId": 528724,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2018, 2016, 2015, 2014, 2013. Marine Team's 2015 S2 example in Valencia only; the original listing expressly states 2 x 40 cv. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Marine Team: 2015 Lagoon 400 S2 original sale inventory",
              "url": "https://marineteam.es/producto/lagoon-400-s2-ano-2015/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3jh5e",
        "manufacturer": "Yanmar",
        "model": "3JH5E",
        "manufacturerRatedPowerKw": 28.7,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 3JH5E manufacturer graph, 28.7 kW / 3000 RPM. The datasheet rating replaces the earlier 29.4 kW generic estimate.",
        "sources": [
          {
            "title": "Yanmar 3JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH5_A4_022021_HR.pdf",
            "sha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
            "page": 2,
            "edition": "DS_3JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-3jh40",
      "manufacturer": "Yanmar",
      "model": "3JH40",
      "displayName": "Yanmar 3JH40",
      "engineReferenceId": "yanmar_3jh40",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali Catspace",
          "yachtModelId": 10306352,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. 2023 three-cabin owner's-version vessel at Port Pin Rolland only; not the motor-yacht variant. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Port Pin Rolland: 2023 Bali Catspace owner version",
              "url": "https://www.boats.com/sailing-boats/2023-bali-catspace-9270626/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C38",
          "yachtModelId": 12414951,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Dataset build years: 2022, 2023, 2024, 2025. Manufacturer price list 3/2022 explicitly lists this option; other model years require their own specification.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria C38 manufacturer price list 3/2022, dealer-hosted original",
              "url": "https://bavaria-yachts.ru/Pricelist_SailingYachts_03-2022_EN/Pricelist_C38_03-2022_220412_EN.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C38 Style",
          "yachtModelId": 22148402,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2025. Only AMS's 2025 C38 explicitly carrying the Style pack. This supports a Style-equipped vessel, not a separate factory specification for every Style-labelled catalogue boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "AMS Yachting: 2025 Bavaria C38, Full LOA with Style pack",
              "url": "https://amsyachting.com/bateaux/bavaria-c38-2025-en-version-full-loa/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C42",
          "yachtModelId": 10501555,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Undated dealer C42 specification; engine identity explicit, but no claim that every 2020-2025 boat uses it.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Yachts Hungary: C42 technical data",
              "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c42/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 37.1",
          "yachtModelId": 38626558,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset year: 2024. The 2024 dealer list explicitly identifies 3JH40 and Flagstaff's 2024 vessel specification corroborates it. The 12 kW Torqeedo electric option was also investigated, but its exact commercial model was not established and is not inferred from power.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Risbjerg: Oceanis 37.1 price list 2024",
              "url": "https://www.risbjerg.dk/wp-content/uploads/2023/08/Oceanis-37.1.pdf"
            },
            {
              "title": "Flagstaff Marine: Beneteau Oceanis 37.1, 2024 specification",
              "url": "https://flagstaffmarine.com.au/wp-content/themes/marine/pdf-converter/specifications.php?boat_id=316773"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 38.1",
          "yachtModelId": 1327817,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Separate higher-output propulsion version explicitly offered in the January 2021 retail list. Do not assume this option was offered or fitted in every dataset year.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 38.1 retail list dated 1 January 2021",
              "url": "https://www.yachtingstargroup.com/wp-content/uploads/2021/04/Gennaio-2021-38.1.pdf"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 360",
          "yachtModelId": 50679636,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Hanse Vertriebs' 2025 stock Hanse 360, matching registry year 2025. Listing calls this stronger-engine extra. Manual hanse-mixed-h360-electric also offers power-only diesel/electric choices, but gives no electric motor model to record.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Hanse Vertriebs: 2025 Hanse 360 stock boat",
              "url": "https://www.yachtworld.com/yacht/2025-hanse-360-9834595/"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 388",
          "yachtModelId": 4327922,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Morgon; broker header gives 2022, comments say built 2021 and delivered 2022. Both years occur in registry coverage 2018-2023. No universal upgrade claim.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Hanse 388 Morgon",
              "url": "https://www.devalk.nl/en/yachtbrokerage/810815/HANSE-388.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 410",
          "yachtModelId": 39170356,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "New-generation Hanse 410 shown by YANMAR Marine at boot Dusseldorf 2024. Registry years are 2024, 2025 and 2026; source documents the 2024 configuration, not every later-year build.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "YANMAR Marine: Hanse 410 at boot Dusseldorf 2024",
              "url": "https://www.youtube.com/watch?v=6IQTQx4X0ww"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 380",
          "yachtModelId": 21572643,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Manufacturer's March 2025 Just in Time offer configuration for the Sun Odyssey 380. It is not a claim about every 2022-2025 boat or about the different Salona 380. Catalogue build years reviewed: 2022, 2023, 2024, 2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 380 Just in Time offer, March 2025",
              "url": "https://app.jeanneau.com/uploads/media/image/interior/5254206d3ccfa7c9712ff64e27f6899b.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 410",
          "yachtModelId": 7912959,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Lower-priced shaft-drive propulsion package in the January 2025 Sun Odyssey 410 price list. Not retroactively guaranteed for all catalogue years 2019-2025. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 410 manufacturer price list, B2025 January 2025",
              "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey410_price.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3jh40",
        "manufacturer": "Yanmar",
        "model": "3JH40",
        "manufacturerRatedPowerKw": 29.4,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 3JH40 manufacturer fuel graph, 29.4 kW / 3000 RPM, February 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 3JH40 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH40_A4_022021_HR.pdf",
            "sha256": "96b24c528a309da34d2aff864ce7acca14942d1b480f091a304e4bd8b755ce5b",
            "page": 2,
            "edition": "DS_3JH40_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-3ym20",
      "manufacturer": "Yanmar",
      "model": "3YM20",
      "displayName": "Yanmar 3YM20",
      "engineReferenceId": "yanmar_3ym20",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 30.1",
          "yachtModelId": 10238965,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset year: 2020. Explicit engine version on the 1 October 2019 Oceanis 30.1 retail list; suitable period evidence, not identification of all four dataset examples.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 30.1 retail list dated 1 October 2019",
              "url": "https://www.yachtingstargroup.com/wp-content/uploads/2020/04/Listino-30.1.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 31",
          "yachtModelId": 100305,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2017. De Valk reference 204034 documents a 2017 Oceanis 31 with a 2017 installation. Does not prove the engine in the dataset's particular boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Beneteau Oceanis 31, 2017, reference 204034",
              "url": "https://www.devalk.nl/en/yachtbrokerage/204034/BENETEAU-OCEANIS-31.html"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 34.1",
          "yachtModelId": 25032645,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset year: 2023. Modern Lombard Oceanis 34.1, explicitly named in the Beneteau/Yanmar brochure and later dealer list. Not Oceanis 34; the actual 2023 charter boats remain to be checked.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
              "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf"
            },
            {
              "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
              "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 35",
          "yachtModelId": 841487,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Antipode's first-owner 2015 Oceanis 35 Cruiser example has this different engine. No assumption that the difference is determined by build year alone.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Antipode: 2015 Oceanis 35, Douarnenez, seller-origin listing",
              "url": "https://www.topbarcos.com/barco/2015-beneteau-oceanis-35-10327725/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E3",
          "yachtModelId": 1093682,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Standard 2022 B E3 equipment edition only. Catalogue covers 2016; this later sheet must not be treated as proof of the original 2016 engine.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan E3 Standard 2022 B equipment sheet, hosted by Sailway",
              "url": "https://sailway.es/wp-content/uploads/2022/02/E3_Standard-EU_2022B.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Isla 40",
          "yachtModelId": 12781883,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; malformed power extraction in this row is not adopted. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Isla 40 owner's manual",
              "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 33i",
          "yachtModelId": 100354,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Original preliminary Sun Odyssey 33i model brochure. A published configuration for this design, not proof that each of the catalogue's 2011-2015 boats retains the original engine. Catalogue build years reviewed: 2011, 2012, 2013, 2014, 2015.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 33i original preliminary brochure",
              "url": "https://www.voile-et-vie.fr/docs/brochure-sun-odyssey-33i.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 319",
          "yachtModelId": 4044853,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Jeanneau dealer's archived new-model specification for the 319 design. No dated individual 2018 or 2020 catalogue hull is identified. Catalogue build years reviewed: 2018, 2020.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "A&C Yacht Brokers: Sun Odyssey 319 new-model specification",
              "url": "https://www.bateaux-antilles.fr/bateaux-neufs/jeanneau/sun-odyssey-319.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 349",
          "yachtModelId": 570019,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only ADS Marine's 2015 Sun Odyssey 349 example. Broader catalogue coverage through 2024 is not evidence that all intervening boats use the same engine. Catalogue build years reviewed: 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "ADS Marine: 2015 Sun Odyssey 349 vessel specification",
              "url": "https://www.ads-marine.com/en/used-boats/jeanneau-sun-odyssey-349?f=print_page&type=pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3ym20",
        "manufacturer": "Yanmar",
        "model": "3YM20",
        "manufacturerRatedPowerKw": 15.3,
        "manufacturerRatedRpm": 3600,
        "note": "Yanmar 3YM20 manufacturer fuel graph, 15.3 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used.",
        "sources": [
          {
            "title": "Yanmar 3YM20 Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3YM20_A4_022021_HR.pdf",
            "sha256": "2824549c9c964cf0c73663023b0a69a19d579248f00bf82386b0321fdca63fdd",
            "page": 2,
            "edition": "DS_3YM20_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-3ym30",
      "manufacturer": "Yanmar",
      "model": "3YM30",
      "displayName": "Yanmar 3YM30",
      "engineReferenceId": "yanmar_3ym30",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria C38",
          "yachtModelId": 12414951,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Dataset build years: 2022, 2023, 2024, 2025. The 3/2022 price list literally prints 3YM30 without AE or rated RPM. Marketing-name/engine-version ambiguity: this may be abbreviated family nomenclature, not proof of a legacy 3YM30 installation. Yanmar separately lists 3YM30 at 3600 rpm and 3YM30AE at 3200 rpm, both 21.3 kW. Preserve the sales label but do not automatically select the legacy 3600-rpm 3YM30 curve, substitute AE, or assert that every C38 has either version. Confirm the full engine code from vessel documentation or its data plate before choosing a curve.",
          "curveAvailable": false,
          "curveBlockedReason": "Published family label omits the AE suffix and rated RPM; confirm the full engine code before using a curve.",
          "sources": [
            {
              "title": "Bavaria C38 manufacturer price list 3/2022, dealer-hosted original",
              "url": "https://bavaria-yachts.ru/Pricelist_SailingYachts_03-2022_EN/Pricelist_C38_03-2022_220412_EN.pdf"
            },
            {
              "title": "Yanmar SD25 operation manual, June 2019: applicable engine versions",
              "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0032_2019.06.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "First 35",
          "yachtModelId": 101324,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2011. Layline's 2011 modern First 35 example only; not the older Jean Berret First 35 design. The source prints 3YM30 without AE, which is retained as written.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Layline Yacht Broker: First 35, 2011",
              "url": "https://www.layline.com.br/seminovos/Veleiro/1635/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "First 36",
          "yachtModelId": 32585710,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Navar-hosted manufacturer sheet for the same modern First 36 prints generic 3YM30, 21 kW / 29 hp, without AE. Version identity is ambiguous because the explicit joint Beneteau/Yanmar model panel names 3YM30AE at 3200 rpm. This may be abbreviated brochure nomenclature, not a separate engine option or factory proof of the older 3600-rpm 3YM30 hardware. Verify the engine plate; this generic label must not authorize the old curve.",
          "curveAvailable": false,
          "curveBlockedReason": "Conflicting explicit manufacturer evidence identifies 3YM30AE at 3200 rpm, while this boat specification uses generic unsuffixed 3YM30 nomenclature. Preserve the published label, but do not attach the older 3600-rpm 3YM30 curve unless the individual engine version is independently established.",
          "sources": [
            {
              "title": "Beneteau First 36 specification, Navar-hosted manufacturer document",
              "url": "https://www.navaryacht.com/wp-content/uploads/2023/11/36.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 34",
          "yachtModelId": 100307,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2014, 2013, 2012. Evidence is specifically the 2013 Limited Edition sheet for this Oceanis 34 generation. Neither adjacent year nor every trim is established; not Oceanis 34.1. Source prints 3YM30 without AE.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Oceanis 34 Limited Edition 2013, Bohus Yachts specification/price sheet",
              "url": "https://www.bohusyachts.se/wp-content/uploads/2018/05/Oceanis-34-2013-B-SWE-.xlsx.pdf"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 375 GL",
          "yachtModelId": 519477,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Xboat reference 6179, a separate 2011 375 Grand Large only. No claim for all 2013 boats, and not 3YM30AE.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Xboat: 2011 Dufour 375 Grand Large, reference 6179",
              "url": "https://www.xboat.uk/PDFs-6179-DUFOUR_DUFOUR-375-GRAND-LARGE"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 348",
          "yachtModelId": 7269811,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only BOATERY's two-cabin boat listed as model year 2024; narrative separately gives first launch 2022, so year is inconsistent. Registry's source label is three-cabin 2024. Published model lacks AE; no missing suffix is supplied or equivalence asserted.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "BOATERY: Hanse 348 two-cabin vessel",
              "url": "https://boatery.dk/vare/hanse-348-2-cabin/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 36i",
          "yachtModelId": 52,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only WINDSWEPT, the charter operator's 2012 Sun Odyssey 36i. Not identification of either Croatian catalogue boat. Catalogue build years reviewed: 2012.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Windward Sailing Charters: 2012 Sun Odyssey 36i WINDSWEPT",
              "url": "https://www.windwardcharters.com/sailboat-details-windswept"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 379",
          "yachtModelId": 478352,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the broker's 2015 Sun Odyssey 379 example. The separate catalogue year 2013 is not identified by this source. Catalogue build years reviewed: 2013, 2015.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 379",
              "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-379-37-10319475"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 389",
          "yachtModelId": 1052995,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Manufacturer's published Sun Odyssey 389 equipment inventory; no individual 2018 charter boat identified. No inference from the predecessor 379 is used. Catalogue build years reviewed: 2018.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 389 equipment inventory",
              "url": "https://app.jeanneau.com/inventory/22559"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 39",
          "yachtModelId": 529930,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2017, 2016. 2013 ALVOCO example only, outside the catalogue's 2016/2017 build years. No inference that later hulls retain the non-AE engine. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "SAIL Tahiti: 2013 Lagoon 39 ALVOCO seller listing",
              "url": "https://www.boats.com/sailing-boats/2013-lagoon-39-10160650/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 380",
          "yachtModelId": 100220,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2019, 2018, 2017, 2013. Refurbished Lagoon 380 with 2014 replacement engines only; source contains differing 2013 refurbishment / 2014 engine dates. Boat build year not established, so it does not prove any listed 2013/2017/2018/2019 hull. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "DBY Boat Sales: Lagoon 380 original vessel brochure",
              "url": "https://www.dbyboatsales.com.au/?bdbrochure=lagoon-380-1&mode=2"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 380 S2",
          "yachtModelId": 100302,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2015, 2007, 2006. Lighthouse Yachting's 2007 S2 example only. Source's per-engine model/power fields used, not inconsistent duplicate totals. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lighthouse Yachting: 2007 Lagoon 380 S2",
              "url": "https://www.lighthouseyachting.com/lagoon-380-s2---2007"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3ym30",
        "manufacturer": "Yanmar",
        "model": "3YM30",
        "manufacturerRatedPowerKw": 22.1,
        "manufacturerRatedRpm": 3600,
        "note": "Legacy 1.115 L / 3600 RPM 3YM30 manufacturer graph, installation manual JUN 2006 Rev. 1, Figure 10. Uses ISO 3046-1 / 25 C fuel-inlet conditions (22.1 kW), not the alternative ISO 8665 / 40 C 21.3 kW rating. Fuel readings are not power-rescaled. Only plotted 2000-3600 RPM is offered. Not the 3200 RPM 3YM30AE; ambiguous setup-level model labels remain blocked.",
        "sources": [
          {
            "title": "Yanmar 3YM30 Marine Installation Manual Volume 2 - Performance Curves",
            "url": "https://www.maritimepropulsion.com/files/pdf/1001374",
            "sha256": "acef7cfdfa601fafdfad24942b1d14f3ab3b3c94b67023867cebb85021f1be10",
            "page": 15,
            "edition": "JUN 2006 (Rev. 1), printed 3YM30-15, Figure 10",
            "locator": "PDF page 15, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-3ym30ae",
      "manufacturer": "Yanmar",
      "model": "3YM30AE",
      "displayName": "Yanmar 3YM30AE",
      "engineReferenceId": "yanmar_3ym30ae",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria C38",
          "yachtModelId": 12414951,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2022, 2023, 2024, 2025. Only Maritima Courtage's C38 with engine dated November 2022. The broker explicitly names 3YM30AE; Yanmar rates this version at 3200 rpm. AE suffix retained; do not map it to the legacy 3600-rpm 3YM30 consumption curve. This observed installation neither identifies every C38 nor resolves the price list's abbreviated 3YM30 nomenclature for other boats.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Maritima Courtage: Bavaria C38 with November 2022 engine",
              "url": "https://www.maritima-courtage.fr/annonces/bavaria-c38/"
            },
            {
              "title": "Yanmar Marine International: 3YM30AE specifications",
              "url": "https://www.yanmar.com/marine/product/engines/3ym30ae/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "First 36",
          "yachtModelId": 32585710,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2026, 2025, 2024, 2022. Modern Manuard/Seascape First 36, not First 36.7 or First 36 SE. The Beneteau/Yanmar panel explicitly prints AE and 3200 rpm; do not substitute the 3600-rpm 3YM30 curve. Publication does not establish every individual boat across these years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
              "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 34.1",
          "yachtModelId": 25032645,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Explicit 2025 dealer-listed propulsion upgrade. Retain AE; this later document alone does not prove the option or installation on the dataset's 2023 boats.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
              "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 35",
          "yachtModelId": 841487,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2016, 2015. Network Yacht Brokers' 2016 three-cabin Oceanis 35 example only, not universal fit. Not Oceanis 35.1; AE is preserved.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Network Yacht Brokers Dublin: 2016 Beneteau Oceanis 35, reference 30292",
              "url": "https://www.networkyachtbrokers.com/boats_for_sale/Beneteau_Oceanis_35-30292.html/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 35.1",
          "yachtModelId": 1323161,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2020, 2019, 2018, 2017. Nautivela's individual 2018 Oceanis 35.1 documents this exact engine; not a universal specification across these years. Do not collapse AE into 3YM30.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Nautivela: Beneteau Oceanis 35.1 2018, vessel sheet 39064",
              "url": "https://nautivela.net/wp-content/uploads/2025/08/fitxa-39064.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 38",
          "yachtModelId": 528770,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2016, 2015. De Valk's 2015 three-cabin lifting-keel Oceanis 38 Cruiser is the observed example. Not evidence for every trim, 2016 boat, or the later Oceanis 38.1.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2015 Beneteau Oceanis 38 Cruiser, reference 810669",
              "url": "https://www.devalk.nl/en/yachtbrokerage/810669/BENETEAU-OCEANIS-38-CRUISER.html"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 38.1",
          "yachtModelId": 1327817,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2023, 2022, 2020, 2019, 2018, 2017. Explicitly named in the January 2021 list and the Beneteau/Yanmar brochure, which rates this AE engine at 3200 rpm. Publication is not proof of every individual boat or model year.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 38.1 retail list dated 1 January 2021",
              "url": "https://www.yachtingstargroup.com/wp-content/uploads/2021/04/Gennaio-2021-38.1.pdf"
            },
            {
              "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
              "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E4",
          "yachtModelId": 1696182,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "2019 E4 equipment/price-list edition only. AE suffix is mandatory; no 3YM30 consumption curve or 3600 rpm rating is borrowed.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Floor Yachts: Elan E4 2019 equipment/price list",
              "url": "https://www.flooryachts.dk/wp-content/uploads/2019/06/Elan_2019_08_B-E4_Dkr_.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Isla 40",
          "yachtModelId": 12781883,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's table writes 3YM30 AE and gives maximum rate 3200 rpm. AE suffix and rating are retained; not interchangeable with 3YM30. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Isla 40 owner's manual",
              "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 345",
          "yachtModelId": 523270,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Dave Townley Yachts' 2017 Hanse 345; matches registry year 2017. The broker describes an upgraded installation, not every 345's standard. Preserve AE suffix.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Dave Townley Yachts: 2017 Hanse 345",
              "url": "https://davetownleyyachts.com/2017-hanse-345"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 348",
          "yachtModelId": 7269811,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only XBOAT's 2021 Hanse 348. Registry year is 2024; this is same named design but not proof for the 2024 charter boat or every layout. AE suffix retained.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "XBOAT: 2021 Hanse 348",
              "url": "https://www.xboat.fr/6007-HANSE_HANSE-348.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 388",
          "yachtModelId": 4327922,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Maan, built 2023 and launched May 2024. Registry covers 2018-2023. This confirms a 2023 example, not all six registry years. AE suffix retained.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2023 Hanse 388 Maan",
              "url": "https://www.devalk.nl/en/yachtbrokerage/811438/HANSE-388.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 350",
          "yachtModelId": 41261560,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Standard diesel on page 1 of the December 2023 manufacturer inventory for the 2024-generation 350, corroborated by Locasail's January 2026 offering. Page 3 inconsistently prints 3YM20 at the same 29 CV / 21 kW rating; this is not accepted as a genuine second installation. Preserve AE, not the older 3YM30 curve identity. The optional Torqeedo 6 kW pod lacks an exact model name and is not resolved here. Catalogue build years reviewed: 2024, 2026.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 350 original equipment inventory, December 2023",
              "url": "https://www.locasail.com/uploads/files/url-t-site1media-5994.pdf"
            },
            {
              "title": "Locasail: Sun Odyssey 350 January 2026 specification",
              "url": "https://www.locasail.com/bateaux-neufs/jeanneau-voile-yachts/sun-odyssey-350.html"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 38",
          "yachtModelId": 53770131,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025. New-design 2026 Lagoon 38 hull 6 in Church Point only; never mapped from Lagoon 380. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "TMG seller listing: 2026 Lagoon 38 hull 6, Church Point",
              "url": "https://www.boats.com/sailing-boats/2026-lagoon-38-10073292/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3ym30ae",
        "manufacturer": "Yanmar",
        "model": "3YM30AE",
        "manufacturerRatedPowerKw": 21.3,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 3YM30AE manufacturer fuel graph, 21.3 kW / 3200 RPM. Not the older 3600 RPM 3YM30.",
        "sources": [
          {
            "title": "Yanmar 3YM30AE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf",
            "sha256": "15d3b164a1d70062695c4c7b77c69402046ae8fc004cd655b87391e4635b4c2a",
            "page": 2,
            "edition": "DS_3YM30AE_A4_082022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh3hte",
      "manufacturer": "Yanmar",
      "model": "4JH3-HTE",
      "displayName": "Yanmar 4JH3-HTE",
      "engineReferenceId": "review_yanmar_4jh3hte",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Beneteau 50",
          "yachtModelId": 60,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2005. The 2005 Yachts France example documents this installation on the Farr Beneteau 50; not universal factory fit and not the later Oceanis 50 Family.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yachts France: 2005 Beneteau 50, Beaulieu-sur-Mer, seller listing",
              "url": "https://de.boats.com/segelboote/2005-beneteau-50-10114530/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 49",
          "yachtModelId": 55,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only De Valk's 2006 Sun Odyssey 49, reference 811031, engine installed 2006. Source prints 4JH 3HTE; only the internal space is normalized. Its 90 hp claim is not used as a reliable rated value. Not the 49i or 49 DS. Catalogue build years reviewed: 2006.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2006 Sun Odyssey 49, reference 811031",
              "url": "https://www.devalk.nl/en/yachtbrokerage/811031/JEANNEAU-SUN-ODYSSEY-49.html"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh3hte",
        "manufacturer": "Yanmar",
        "model": "4JH3-HTE",
        "manufacturerRatedPowerKw": 73.6,
        "manufacturerRatedRpm": 3800,
        "note": "4JH3-HTE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 73.6 kW / 3800 RPM; brochure rounded 74 kW), not the former 71.4 kW ISO 8665 / 40 C estimate. No power-rescaling. Not a later 4JH4-HTE graph or measured boat fuel use.",
        "sources": [
          {
            "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
            "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
            "page": 1,
            "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh3e",
      "manufacturer": "Yanmar",
      "model": "4JH3E",
      "displayName": "Yanmar 4JH3E",
      "engineReferenceId": "review_yanmar_4jh3e",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Elan",
          "model": "Elan 45",
          "yachtModelId": 100228,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Secondo Mare vessel ID 1012, explicitly an Elan 45 built 2001 with engine year 2001, only. Catalogue covers 2002; this is an adjacent-year example of the older Elan 45 generation, not proof of the individual 2002 catalogue yacht, a factory standard, or a turbo variant. Not the later Impression 45. Intermediary claims of 4JH3-TE or Nafsika's 4JH5E remain unverified and are not substituted.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Secondo Mare: Elan 45, 2001, vessel ID 1012",
              "url": "https://secondomare.com/boat/elan-45-for-sale/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh3e",
        "manufacturer": "Yanmar",
        "model": "4JH3E",
        "manufacturerRatedPowerKw": 41.2,
        "manufacturerRatedRpm": 3800,
        "note": "Exact naturally aspirated 4JH3E manufacturer graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0, ISO 3046-1 source conditions. Precise operation-manual 41.2 kW / 3800 RPM rating retained; brochure rounds to 41 kW. No fuel rescaling or substitution of TE/HTE/BE/WE graphs.",
        "sources": [
          {
            "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
            "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
            "page": 1,
            "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh3te",
      "manufacturer": "Yanmar",
      "model": "4JH3TE",
      "displayName": "Yanmar 4JH3TE",
      "engineReferenceId": "review_yanmar_4jh3te",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 45",
          "yachtModelId": 54,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Idefix 4, built 2006, HIN FRIR100157C606, in eSailing's listing. Do not merge with 45 DS or 45.2. Catalogue build years reviewed: 2006.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "eSailing: 2006 Sun Odyssey 45 Idefix 4",
              "url": "https://esailing.nl/en/boats/sold-boats/618/jeanneau-sun-odyssey-45"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh3te",
        "manufacturer": "Yanmar",
        "model": "4JH3TE",
        "manufacturerRatedPowerKw": 55.2,
        "manufacturerRatedRpm": 3800,
        "note": "4JH3-TE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 55.2 kW / 3800 RPM; brochure rounded 55 kW), not the previously selected 53.5 kW ISO 8665 / 40 C estimate. Readings are not power-rescaled. Not a later 4JH4-TE graph or boat trial.",
        "sources": [
          {
            "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
            "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
            "page": 1,
            "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh4ce",
      "manufacturer": "Yanmar",
      "model": "4JH4-CE",
      "displayName": "Yanmar 4JH4-CE",
      "engineReferenceId": "review_yanmar_4jh4ce",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Lagoon",
          "model": "Lagoon 440",
          "yachtModelId": 169,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2009, 2006. AINULINDALE vessel only; source writes 4JH4-CE SD, with SD treated as drive description. Build year not established from reviewed indexed passage, so 2006/2009 coverage remains unverified. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Just Catamarans: Lagoon 440 AINULINDALE",
              "url": "https://justcatamarans.net/wp-content/uploads/2017/01/AINULINDALE-Brochure.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4ce",
        "manufacturer": "Yanmar",
        "model": "4JH4-CE",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "warning": true,
        "warningNote": "Rating assumption: Selected exact CE maximum crankshaft pair at 40 C under ISO 8665; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not substitute later 4JH4ACE or infer the actual boat's saildrive generation.",
        "note": "Selected exact CE maximum crankshaft pair at 40 C under ISO 8665; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not substitute later 4JH4ACE or infer the actual boat's saildrive generation. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Yanmar Saildrive SD50 brochure, 2005",
            "url": "https://www.lsm-diesel.dk/2012/yanmar/tekn_data_pdf/sd-50_techdata.pdf",
            "kind": "manufacturer-document",
            "provenance": "Original four-page Yanmar brochure mirrored by LSM Diesel; page 4 copyright is 2005.",
            "locator": "PDF pages 2-3: shared specification-row labels and 4JH4CE x SD50 column; page 2 rating footnotes.",
            "evidence": "4JH4CE is explicitly named with SD50. Crankshaft maxima are 40.5 kW/3000 RPM at 25 C and 39.6/3000 at 40 C; continuous 36.8/2907. This old brochure's separate 4JH3-TCE column is not the later 4JH4-TCE model.",
            "access": "HTTP 200; complete PDF extracted in memory; PDF page 3 rendered and visually inspected."
          },
          {
            "title": "Yanmar Service Manual M9961-03E091, February 2004",
            "url": "https://www.manualslib.com/manual/3848325/Yanmar-4jh4ce.html?page=18",
            "kind": "manufacturer-document",
            "provenance": "Manufacturer service-manual pages reproduced by ManualsLib; revision history identifies the February 2004 new edition.",
            "locator": "Reproduction page 18, section 1.2(2), original printed page 3; official/internal model and marine-gear rows.",
            "evidence": "The 4JH4E series explicitly includes internal model 4JH4CE with SD40. The table separates crankshaft fuel-stop power from lower propeller-shaft power. The CE code is manufacturer-documented, not obtained by deleting letters.",
            "access": "Manufacturer table read through indexed page text. Column alignment independently corroborated by the original SD50 brochure's explicitly named 4JH4CE column."
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh4hte",
      "manufacturer": "Yanmar",
      "model": "4JH4-HTE",
      "displayName": "Yanmar 4JH4-HTE",
      "engineReferenceId": "yanmar_4jh4_hte",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bavaria",
          "model": "Bavaria Cruiser 56",
          "yachtModelId": 529933,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2014, 2015, 2016. Model-specific Cruiser 56 manufacturer table, distinct from Cruiser 55. Retain exact HTE suffix.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
              "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Jeanneau 53",
          "yachtModelId": 855186,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the broker's 2011 Jeanneau 53 example; not proof of factory standard or of the catalogue's 2014 hull. Catalogue build years reviewed: 2011, 2014.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Storm Yachting: 2011 Jeanneau 53",
              "url": "https://stormyachting.com/sailing-yachts/2011-jeanneau-53/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 49i",
          "yachtModelId": 100339,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only De Valk reference 800051, a 2008 Sun Odyssey 49i with engine installed 2008. Source prints 4JH4 HTE; only spacing is normalized. Separate observed higher-power configuration, not a claim about all 49i hulls. Catalogue build years reviewed: 2008.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2008 Sun Odyssey 49i, reference 800051",
              "url": "https://www.devalk.nl/en/brochure_full/800051/JEANNEAU-SUN-ODYSSEY-49I.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 54 DS",
          "yachtModelId": 947111,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Storm Yachting's Sun Odyssey 54 DS example with engine date 2008. Does not establish the catalogue's 2006 installation; do not transfer engines from the later Jeanneau 54. Catalogue build years reviewed: 2006, 2008.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Storm Yachting: Sun Odyssey 54 DS, 2008 engine",
              "url": "https://stormyachting.com/sailing-yachts/jeanneau-sun-odyssey-54-ds/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 560",
          "yachtModelId": 941036,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2017, 2015. 2012 plain Lagoon 560 example, engine years 2011, only; outside catalogue years 2015/2017. Later 560 S2 evidence was not silently mapped to this entry. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker seller listing: 2012 Lagoon 560, Fernandina Beach",
              "url": "https://www.boats.com/sailing-boats/2012-lagoon-560-9927043/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh4_hte",
        "manufacturer": "Yanmar",
        "model": "4JH4-HTE",
        "manufacturerRatedPowerKw": 80.9,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH4-HTE manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet.",
        "sources": [
          {
            "title": "Yanmar 4JH4-HTE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf",
            "sha256": "cd06ba6f6e74f863c216282ce062d574ea5343fceef4d8d03c399ced291bfc5a",
            "page": 2,
            "edition": "DS_4JH4-HTE_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh4te",
      "manufacturer": "Yanmar",
      "model": "4JH4-TE",
      "displayName": "Yanmar 4JH4-TE",
      "engineReferenceId": "review_yanmar_4jh4te",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 46",
          "yachtModelId": 125470,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2011. Perla Alba, YOTI's 2011 Oceanis 46 example. The source explicitly identifies TE; do not replace it with TCE, 4JH57 or another engine based on horsepower. Not Oceanis 46.1.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "YOTI: Perla Alba, 2011 Beneteau Oceanis 46",
              "url": "https://www.yoti.com.au/?bdbrochure=beneteau-oceanis-46-perla-alba-sold"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 48",
          "yachtModelId": 516659,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2018, 2017, 2016, 2015, 2014. De Valk reference 813081 is built 2015 and described as model year 2016. Its three-cabin installation is not proof for all four-/five-cabin dataset variants or years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Beneteau Oceanis 48, reference 813081",
              "url": "https://www.devalk.nl/en/yachtbrokerage/813081/BENETEAU-OCEANIS-48.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 44i",
          "yachtModelId": 100257,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the broker's Sun Odyssey 44i with engine installed in 2009, reference 812357. Search-indexed primary broker evidence; direct access returned a server error. Not a universal standard. Catalogue build years reviewed: 2009.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Sun Odyssey 44i, reference 812357",
              "url": "https://www.devalk.nl/en/brochure_full/812357/JEANNEAU-SUN-ODYSSEY-44I.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 49i",
          "yachtModelId": 100339,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Ciel Rose, built/launched 2008, engine E12045, in Nautilus Yacht Management's original vessel brochure. Catalogue build years reviewed: 2008.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Nautilus Yacht Management: 2008 Sun Odyssey 49i Ciel Rose",
              "url": "https://imgs.yachthub.com/3/1/6/9/3/0/Ciel_Rose_Brochure.pdf"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 52 F",
          "yachtModelId": 6260488,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2021, 2019, 2017, 2013. 2015 SERENITY, refitted 2023, only. This build year is outside catalogue years 2013/2017/2019/2021; no claim about those builds. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Adriatic Sailing: 2015 Lagoon 52 F SERENITY",
              "url": "https://www.adriatic-sailing.hr/Downloads/Lagoon52f-Serenity.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4te",
        "manufacturer": "Yanmar",
        "model": "4JH4-TE",
        "manufacturerRatedPowerKw": 55.2,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH4-TE manufacturer fuel graph, 55.2 kW / 3200 RPM, May 2022 sheet. Uses the fuel graph's stated load exponent, not an adjacent power chart or an older edition.",
        "sources": [
          {
            "title": "Yanmar 4JH4-TE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-TE_A4_052022_HR.pdf",
            "sha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
            "page": 2,
            "edition": "DS_4JH4-TE_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh4e",
      "manufacturer": "Yanmar",
      "model": "4JH4E",
      "displayName": "Yanmar 4JH4E",
      "engineReferenceId": "review_yanmar_4jh4e",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 43",
          "yachtModelId": 100343,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2009. Prime Time, 2009 Oceanis 43, as documented by Grand Yachts. Installation evidence only; no universal factory-fit claim.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Grand Yachts: Prime Time, 2009 Beneteau Oceanis 43",
              "url": "https://www.grandyachts.com/our-inventory/used-boats-for-sale/?boat_id=7624941"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 430 E",
          "yachtModelId": 8066657,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only BoatAgent's 2007 epoxy Hanse 430e, not the registry's 2008 individual boat. Same explicitly named E design; not generalized to a non-E Hanse 430. SD-50 is the drive, not the engine.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "BoatAgent: 2007 Hanse 430e equipment list",
              "url": "https://batagent.se/wp-content/uploads/2023/06/import/hanse-430e-equipment-list-eng.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 42i",
          "yachtModelId": 100258,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the 2007 Sun Odyssey 42i in Batagent's equipment list, engine E04861. Preserve the E designation as published; the catalogue also contains 2008 boats that this source does not identify. Catalogue build years reviewed: 2007, 2008.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Batagent: 2007 Sun Odyssey 42i equipment list",
              "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-v2-2.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 44i",
          "yachtModelId": 100257,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Reported identity only for the 2011 broker example, reference 813586, outside the catalogue's 2009 year. The same listing says 75 hp, an internally questionable pairing; omit that rating and require engine-plate verification. Do not silently change E to TE or use a TE curve. Catalogue build years reviewed: 2009.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2011 Sun Odyssey 44i, reference 813586",
              "url": "https://www.devalk.nl/en/yachtbrokerage/813586/JEANNEAU-SUN-ODYSSEY-44I.html"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4e",
        "manufacturer": "Yanmar",
        "model": "4JH4E",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "warning": true,
        "warningNote": "Rating assumption: Selected ISO 8665 maximum crankshaft rating at 40 C; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not confuse 4JH4E with 4JH4AE, 4JH5E or turbo variants.",
        "note": "Selected ISO 8665 maximum crankshaft rating at 40 C; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not confuse 4JH4E with 4JH4AE, 4JH5E or turbo variants. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Yanmar type 4JH4E - The Powerful Gem",
            "url": "https://irp.cdn-website.com/76471e1f/files/uploaded/4JH4E_%2854hp%29TechData.pdf",
            "kind": "manufacturer-document",
            "provenance": "Original Yanmar-branded two-page brochure on a third-party CDN mirror; publication date not established.",
            "locator": "PDF page 1: Maximum output at crankshaft, continuous rating and the two fuel-temperature footnotes.",
            "evidence": "Maximum crankshaft power is 40.5 kW/3000 RPM at 25 C under ISO 3046-1, or 39.6/3000 at 40 C under ISO 8665. Continuous power is 36.8/2907. These are documented rating-condition alternatives, not suffix equivalence inferred from horsepower.",
            "access": "HTTP 200 PDF downloaded into memory; specification text extracted and corroborated with Yanmar service-manual reproduction.",
            "sha256": "629a68c60d73a4d58fdc8a7fe897de24e695d8783a03443cb286974fb551bd6c"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh4tce",
      "manufacturer": "Yanmar",
      "model": "4JH4TCE",
      "displayName": "Yanmar 4JH4TCE",
      "engineReferenceId": "review_yanmar_4jh4tce",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 50 Family",
          "yachtModelId": 104209,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2012. MACARMI is explicitly a 2011 Oceanis 50 Family G5, not the earlier Beneteau 50. This adjacent-year vessel is an observed installation only and does not confirm either 2012 cabin variant. Exact source spelling 4JH4TCE is retained; SD is excluded as drive terminology. Other reviewed Family material gave 110 hp without an exact engine identity and is not guessed.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "I. Castaner Yachts: Oceanis 50 Family MACARMI, reference 15347",
              "url": "https://castaner-yachts.com/wp-content/uploads/2026/02/ICY-REF-15347-Beneteau-Oceanis-50-Family.pdf"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Saba 50",
          "yachtModelId": 829525,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; exact TCE variant retained. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
              "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 509",
          "yachtModelId": 125533,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Explicit standard engine in the July 2011 preliminary manufacturer inventory for the Sun Odyssey 509 design. The catalogue's 2014 hulls are not individually verified; this is not a specification for the later 519. Catalogue build years reviewed: 2014.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 509 preliminary standard inventory, July 2011",
              "url": "https://www.mottemarine.fr/images/pic_bateaux/2011/d754_inventaire_sunodyssey509.pdf"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 52",
          "yachtModelId": 844978,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build year: 2015. Original broker reference 1500, a 2015 Lagoon 52 four-cabin vessel in Greece, only. Exact model spelling is preserved from its engine field. The broker explicitly calls this boat Lagoon 52; this evidence is not borrowed from the separately normalized Lagoon 52 F and does not prove universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Windward Islands Yachting & Travel: 2015 Lagoon 52, broker reference 1500",
              "url": "https://www.worldwideyachtbroker.com/en/pdf/1500"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4tce",
        "manufacturer": "Yanmar",
        "model": "4JH4TCE",
        "manufacturerRatedPowerKw": 55.2,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the 55.2 kW / 3200 RPM 4JH4-TE base-engine manufacturer graph under the reviewed saildrive-family policy. The TCE installation is not separately certified by this graph.",
        "sources": [
          {
            "title": "Yanmar 4JH4-TE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-TE_A4_052022_HR.pdf",
            "sha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
            "page": 2,
            "edition": "DS_4JH4-TE_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh5ce",
      "manufacturer": "Yanmar",
      "model": "4JH5-CE",
      "displayName": "Yanmar 4JH5-CE",
      "engineReferenceId": "review_yanmar_4jh5ce",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot Saba 50",
          "yachtModelId": 829525,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; model punctuation retained as printed, not replaced with 4JH57. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
              "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 439",
          "yachtModelId": 119451,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the 2013 Performance example Tallulah Ruby in Network Yacht Brokers Lefkas' seller specification; no inference from 449 or 44 DS. Catalogue build years reviewed: 2013, 2014.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Network Yacht Brokers Lefkas: 2013 Sun Odyssey 439 Tallulah Ruby",
              "url": "https://www.yachtworld.com/yacht/2013-jeanneau-sun-odyssey-439-10256294/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 469",
          "yachtModelId": 478311,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Clarke & Carter's boat built November 2013 and first commissioned 2014. The distinction between build and commissioning years is explicit; do not treat all 2014 boats as identified. Catalogue build years reviewed: 2014.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Clarke & Carter: 2013-built Sun Odyssey 469, commissioned 2014",
              "url": "https://www.clarkeandcarter.co.uk/2013-jeanneau-sun-odyssey-469/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 479",
          "yachtModelId": 1060778,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the operator/broker's 2016 Sun Odyssey 479 sales-inventory example, outside the catalogue's 2017-2019 coverage. Keep separate from the 2018 4JH57 example. Catalogue build years reviewed: 2017, 2018, 2019.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Vacanzeavela: Sun Odyssey 479, 2016 sales inventory",
              "url": "https://www.vacanzeavela.it/pages/occasioni2.asp?Id=1"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh5ce",
        "manufacturer": "Yanmar",
        "model": "4JH5-CE",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 39.6 kW / 3000 RPM 4JH5E base-engine manufacturer graph under the reviewed saildrive-family policy. The CE installation is not separately certified by this graph.",
        "sources": [
          {
            "title": "Yanmar 4JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH5E_A4_022021_HR.pdf",
            "sha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
            "page": 2,
            "edition": "DS_4JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh5e",
      "manufacturer": "Yanmar",
      "model": "4JH5E",
      "displayName": "Yanmar 4JH5E",
      "engineReferenceId": "review_yanmar_4jh5e",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis 45",
          "yachtModelId": 478262,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2018, 2017, 2016, 2015, 2014, 2013, 2012. De Valk reference 809852 is a 2013 three-cabin boat. This example does not establish all years or the four-cabin source-model variant.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2013 Beneteau Oceanis 45, reference 809852",
              "url": "https://www.devalk.nl/en/yachtbrokerage/809852/BENETEAU-OCEANIS-45.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 439",
          "yachtModelId": 119451,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Reported exact designation on the broker's separate 2015 example, outside the catalogue's 2013/2014 coverage. Preserve the published designation without inventing a CE suffix; SD-60 is the separate drive, not an engine. Catalogue build years reviewed: 2013, 2014.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 439",
              "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-439-43-10249316"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 450",
          "yachtModelId": 126488,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2019, 2018, 2015, 2014. 2014 CHAPTER TWO, engine years 2013, only; no reuse of 450 S specification. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "The Catamaran Company: 2014 Lagoon 450 CHAPTER TWO",
              "url": "https://www.boattrader.com/boat/2014-lagoon-450-10048369/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh5e",
        "manufacturer": "Yanmar",
        "model": "4JH5E",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 4JH5E manufacturer fuel graph, 39.6 kW / 3000 RPM. Uses the February 2021 sheet without blending earlier editions.",
        "sources": [
          {
            "title": "Yanmar 4JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH5E_A4_022021_HR.pdf",
            "sha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
            "page": 2,
            "edition": "DS_4JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh45",
      "manufacturer": "Yanmar",
      "model": "4JH45",
      "displayName": "Yanmar 4JH45",
      "engineReferenceId": "yanmar_4jh45",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.2",
          "yachtModelId": 12625379,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2021 Simpson Marine vessel only; not all 2021-2026 builds. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Simpson Marine: 2021 Bali 4.2 vessel specification",
              "url": "https://www.simpsonmarine.com/yachts/Bali-4.2-9473047/pdf/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 40.1",
          "yachtModelId": 10307256,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2025, 2024, 2023, 2022, 2021. The Oceanis 40.1 panel in the Beneteau/Yanmar brochure explicitly lists 4JH45, not just a power rating. The panel is model evidence, not confirmation of every year or cabin layout.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
              "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 41.1",
          "yachtModelId": 1065666,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2020, 2019, 2018, 2017, 2016, 2014. Evidence applies to the actual Oceanis 41.1 generation and does not resolve the anomalous 2014 dataset label. Do not transfer Oceanis 41 engine evidence or assign this setup automatically to that 2014 record.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Risbjerg: Beneteau Oceanis 41.1 retail specification/price list",
              "url": "https://www.risbjerg.dk/wp-content/uploads/2015/11/OC-41.1.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 43",
          "yachtModelId": 30818625,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Impression 43 column in the cited manufacturer brochure; catalogue covers 2023. The later hosted edition does not establish the engine on the specific 2023 catalogue boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression Line manufacturer brochure: Impression 43",
              "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45",
          "yachtModelId": 837181,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Current 12.82 m hull-length Impression 45 in the September 2024 brochure only. Catalogue spans two generations; this is not evidence for legacy 2015-2019 boats or automatic allocation to any sourceModelId.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression 45 manufacturer brochure, September 2024",
              "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45 (ex. 43)",
          "yachtModelId": 55686823,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Pre-rename Impression 43 Standard 2023 A specification, explicitly linked to the modern 45 / ex.43 generation by Elan's 29 July 2024 announcement. Catalogue covers 2024. This is a published generation configuration, not identification of One for all, the individual catalogue yacht or every post-update boat. Not the legacy Impression 45 or 45.1.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression 43 Standard 2023 A equipment specification",
              "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf"
            },
            {
              "title": "Elan Yachts: Impression 43 Gets Longer and Becomes Impression 45, 29 July 2024",
              "url": "https://www.elan-yachts.com/en/news/elan-impression-43-gets-longer-and-becomes-elan-impression-45"
            },
            {
              "title": "Elan Yachts: previous-model Impression 43 technical specification",
              "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-43"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 415",
          "yachtModelId": 70152016,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Explicit standard common-rail shaft-drive engine in the May/June 2025 Sun Odyssey 415 inventory, applicable to the new 2026-era design. Do not substitute a 410 engine based on shared hull dimensions. Catalogue build years reviewed: 2026.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 415 original equipment inventory, May/June 2025",
              "url": "https://www.sea-ventures.co.uk/wp-content/uploads/2025/06/415-specification.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 419",
          "yachtModelId": 1067079,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Williams & Smithells' 2018 Sun Odyssey 419, a former Sunsail sail-training yacht. Not evidence for every 2018/2019 catalogue boat. Catalogue build years reviewed: 2018, 2019.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Williams & Smithells: 2018 Sun Odyssey 419",
              "url": "https://www.williamsandsmithells.com/boats/jeanneau-sun-odyssey-419/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 440",
          "yachtModelId": 4033329,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "45 hp shaft-drive version in the January 2025 Sun Odyssey 440 price list. Earlier catalogue years 2018-2024 need hull-specific confirmation. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 440 manufacturer price list, B2025 January 2025",
              "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey440_price.pdf"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 40",
          "yachtModelId": 4298201,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Lazio vessel only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker seller listing: 2019 Lagoon 40, Lazio",
              "url": "https://www.boats.com/sailing-boats/2019-lagoon-40-9783288/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 42",
          "yachtModelId": 1027822,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "The selling broker's original vessel specification lists twin Yanmar 4JH45 engines. A documented alternative, not an assertion about all Lagoon 42 boats.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "The Catamaran Company: 2020 Lagoon 42 PAU HANA",
              "url": "https://www.catamarans.com/Brochure/Brochure_453495_10-07-2025_15_18_17.pdf"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 450 S",
          "yachtModelId": 1312688,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Published Sporttop model specification lists two Yanmar 4JH45 engines. Other installations must be checked on the boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lagoon Katamaran Nord: Lagoon 450 Sporttop technical data",
              "url": "https://www.lagoon-catamaran.de/en/lagoon-models/lagoon-450-sporttop.html"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh45",
        "manufacturer": "Yanmar",
        "model": "4JH45",
        "manufacturerRatedPowerKw": 33.1,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 4JH45 manufacturer fuel graph, 33.1 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH57 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh45cr",
      "manufacturer": "Yanmar",
      "model": "4JH45CR",
      "displayName": "Yanmar 4JH45CR",
      "engineReferenceId": "review_yanmar_4jh45cr",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 410",
          "yachtModelId": 7912959,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Separately priced 45 hp shaft-drive version in the January 2025 Sun Odyssey 410 price list; only a published offering, not identification of a selected boat. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 410 manufacturer price list, B2025 January 2025",
              "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey410_price.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh45cr",
        "manufacturer": "Yanmar",
        "model": "4JH45CR",
        "manufacturerRatedPowerKw": 33.1,
        "manufacturerRatedRpm": 3000,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 33.1 kW / 3000 RPM 4JH45 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh57",
      "manufacturer": "Yanmar",
      "model": "4JH57",
      "displayName": "Yanmar 4JH57",
      "engineReferenceId": "yanmar_4jh57",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.4",
          "yachtModelId": 23155356,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2025, 2024, 2023, 2022. 2022 Oren vessel only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker vessel listing: 2022 Bali 4.4 in Oren",
              "url": "https://boats.com/sailing-boats/2022-bali-4-4-10153184/"
            }
          ]
        },
        {
          "brand": "Bali",
          "model": "Bali 4.6",
          "yachtModelId": 12425723,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2022, 2021. Advertised 2024 Marseille vessel, launched October 2023 with 2023 engines; vessel evidence only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yacht Deals: 2024 Bali 4.6, Marseille seller listing",
              "url": "https://boats.com/sailing-boats/2024-bali-4-6-10186998/"
            }
          ]
        },
        {
          "brand": "Bali",
          "model": "Bali 5.2",
          "yachtModelId": 58680964,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2026. Published Bali 5.2 generation configuration; dealer explicitly names model, not just 57 hp. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yachting 360: Bali 5.2 equipment specification",
              "url": "https://www.yachting360.fr/de/bateaux/bali-52"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C42",
          "yachtModelId": 10501555,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Only Clipper Marine's 2020 C42 with upgraded engine; a distinct observed alternative.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Clipper Marine: 2020 Bavaria C42",
              "url": "https://www.clippermarine.co.uk/boats-for-sale~boat-feed-detail~-bavaria-c42~57460"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C45",
          "yachtModelId": 8097042,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Dataset build years: 2019, 2023, 2024. Cossutti C45 brochure's standard configuration; brochure edition is not a guarantee for every dataset build.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria C45 manufacturer C-Line brochure, Italian dealer mirror",
              "url": "https://www.bavariayachts.it/index_htm_files/Brochure%20C45%20sito.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C45 Holiday",
          "yachtModelId": 6021431,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2019, 2024. Only Columbus Yachting's explicitly labelled 2019 Holiday boat. The 2024 dataset builds are not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Columbus Yachting original listing: 2019 Bavaria C45 Holiday",
              "url": "https://ca.boats.com/sailing-boats/2019-bavaria-c45-holiday-10101499/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C45 Style",
          "yachtModelId": 6031800,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2019, 2022, 2023. Only the charter specification's explicitly labelled 2020 C45 STYLE. Also outside listed build years; retained as a documented trim-specific alternative.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Dalmatia Yachting: 2020 Bavaria C45 Style specification",
              "url": "https://www.booking-manager.com/wbm2/bmdoc/4582760557600575_Description_Bavaria_C45_STYLE.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C46",
          "yachtModelId": 34594232,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Standard-power reference: builder's 2024 price list establishes 57 hp; Sydney Marine Brokerage's 2026 offered C46 supplies the exact 4JH57 code. This is not verification of every 2024-2026 charter vessel or a measured fuel test.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Sydney Marine Brokerage: Bavaria C46 new dealer reference NSB32",
              "url": "https://www.sydneymarinebrokerage.com/listing/bavaria-c46-1/"
            },
            {
              "title": "BAVARIA C46 builder price list 02-2024: standard propulsion",
              "url": "https://www.bavaria-yachts.ru/02-2024/Pricelist_C46_02-2024_231212_EN_fin.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "First 44",
          "yachtModelId": 31443948,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset year: 2023. Beneteau's modern First 44 financing configuration explicitly names 4JH57; the offer is not a dated build record for the dataset boats. Not First 44.7 or an assumption about a separate electric demonstration boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau: Financez votre First 44",
              "url": "https://www.beneteau.com/fr/financez-votre-first-44"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 46.1",
          "yachtModelId": 7820066,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019. Explicit Oceanis 46.1 brochure panel; not the older Oceanis 46. A model-level published configuration does not identify each boat or guarantee unchanged availability across all years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
              "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 47",
          "yachtModelId": 64123960,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset year: 2026. New-generation Oceanis 47 retail list issued in 2025. This is not the older Oceanis 473/Clipper 473 design or a promise about every four- or five-cabin charter boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 47 retail list, Nautivela copy",
              "url": "https://nautivela.net/wp-content/uploads/2025/07/OCEANIS_47.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E6",
          "yachtModelId": 25647923,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Standard 2022 B E6 manufacturer equipment sheet. Catalogue covers 2022-2025; the cited edition is not proof for every individual build.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan E6 Standard 2022 B equipment sheet, hosted by Sailway",
              "url": "https://sailway.es/wp-content/uploads/2022/02/E6_Standard-EU_2022B.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan GT6",
          "yachtModelId": 23036769,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "GT6 column of the cited GT Line brochure only. Catalogue covers 2022; current hosted brochure publication alone does not verify the 2022 individual yacht. Not GT6X or GT5.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan GT Line manufacturer brochure",
              "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-GT_Line_1.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 43",
          "yachtModelId": 30818625,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Another explicitly listed Impression 43 configuration in the same brochure; not an inference from 57 hp and not assigned universally to 2023.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression Line manufacturer brochure: Impression 43",
              "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45",
          "yachtModelId": 837181,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Current 12.82 m hull-length design in the September 2024 brochure only; not the earlier legacy Impression 45 or proof for each 2023-2025 catalogue boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression 45 manufacturer brochure, September 2024",
              "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45 (ex. 43)",
          "yachtModelId": 55686823,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Explicit option in the pre-rename Impression 43 Standard 2023 A sheet and retained official previous-model specification; Elan documents the July 2024 43-to-45 name/design update. This does not prove that One for all's published 57 hp engine or sourceModelId 55686823 is a 4JH57; its observed specification remains power-only.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression 43 Standard 2023 A equipment specification",
              "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf"
            },
            {
              "title": "Elan Yachts: Impression 43 Gets Longer and Becomes Impression 45, 29 July 2024",
              "url": "https://www.elan-yachts.com/en/news/elan-impression-43-gets-longer-and-becomes-elan-impression-45"
            },
            {
              "title": "Elan Yachts: previous-model Impression 43 technical specification",
              "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-43"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 410",
          "yachtModelId": 39170356,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "YANMAR Marine explicitly names this optional engine for the new Hanse 410 at boot Dusseldorf 2024. Does not identify any individual registry boat from 2024-2026.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "YANMAR Marine: Hanse 410 at boot Dusseldorf 2024",
              "url": "https://www.youtube.com/watch?v=6IQTQx4X0ww"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 418",
          "yachtModelId": 4487088,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only De Valk's 2021 Hanse 418. Registry covers 2018, 2019, 2020, 2021, 2022, 2024 and 2025; no other registry years are established by this example.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2021 Hanse 418, reference 808225",
              "url": "https://www.devalk.nl/en/yachtbrokerage/808225/HANSE-418.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 455",
          "yachtModelId": 831617,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Yacht Trade Denmark's 2017 vessel. Registry also covers 2016 and 2018 and combines three-cabin and unspecified-layout IDs; source does not establish every layout/year.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yacht Trade Denmark: 2017 Hanse 455",
              "url": "https://www.yachttradedenmark.com/da/solgte-bade/hanse-455"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 458",
          "yachtModelId": 8341114,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Clipper Marine's Hanse 458 delivered spring 2025 in Patra. Registry includes 2025 within 2019-2025; keep separate from 2024 Nebulas' 4JH80.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Clipper Marine: 2025 Hanse 458, Patra",
              "url": "https://www.inautia.com/boat/2025-hanse-458-10295430/"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 460",
          "yachtModelId": 22582938,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only ADS Marine's 2023-build, 2024-model-year vessel. Registry covers 2022-2026; both published dates are within coverage, but this does not resolve other boats.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "ADS Marine: Hanse 460, build 2023 / model 2024",
              "url": "https://ads-marine.com/en/sail-boats/hanse-460?f=print_page&type=pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 449",
          "yachtModelId": 1052996,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Zosca, the operator's 2017 Sun Odyssey 449. No manufacturer-standard claim and no assumption about the catalogue's 2016, 2018 or 2019 boats. Catalogue build years reviewed: 2016, 2017, 2018, 2019.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Zosca Sailing: 2017 Sun Odyssey 449 Zosca",
              "url": "https://www.zoscasailing.com/details/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 479",
          "yachtModelId": 1060778,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Victory, the 2018 Horizon Edition Sun Odyssey 479 in Denison's original listing. Not a standard or guaranteed 2017/2019 fit. Catalogue build years reviewed: 2017, 2018, 2019.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Denison Yachting: 2018 Sun Odyssey 479 Victory",
              "url": "https://www.yachtworld.com/yacht/2018-jeanneau-sun-odyssey-479-10127959/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 40",
          "yachtModelId": 4298201,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Simpson Marine reference 8861191 vessel only; separate documented fit, not inferred from Lagoon 42. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Simpson Marine: 2019 Lagoon 40, reference 8861191",
              "url": "https://www.simpsonmarine.com/yachts/Lagoon-40-8861191/pdf/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 42",
          "yachtModelId": 1027822,
          "engineCount": 2,
          "configuration": "published-standard",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. E2024 dealer specification expressly valid for delivery through 31 December 2024, in both named base layouts; not every earlier Lagoon 42. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lagoon Katamaran Nord: Lagoon 42 E2024 specification",
              "url": "https://www.lagoon-catamaran.de/fileadmin/user_upload/Lagoon_42_E2024_.pdf"
            },
            {
              "title": "Lagoon dealer: documented 2020 Lagoon 42, reference 50",
              "url": "https://www.lagoon-catamaran.de/gebrauchtboote/detail/lagoon-42-50.html"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 43",
          "yachtModelId": 46950302,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025. New-generation 2026 sailing Lagoon 43 in Gibraltar with 2025 engines only; not the old Lagoon 43 Powercat. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Harel Yachts: 2026 Lagoon 43, Gibraltar seller listing",
              "url": "https://www.boats.com/sailing-boats/2026-lagoon-43-10108131/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 46",
          "yachtModelId": 9963355,
          "engineCount": 2,
          "configuration": "published-standard",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. B2026 dealer price-list standard engine; do not retroactively apply to all 2020-2025 vessels. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lagoon Katamaran Nord: Lagoon 46 price list B2026",
              "url": "https://www.lagoon-catamaran.de/fileadmin/B2026/Preisliste_Lagoon46_B2026_EN.pdf"
            },
            {
              "title": "Lagoon dealer vessel specification: Lagoon 46, reference 275",
              "url": "https://www.lagoon-catamaran.de/fileadmin/user_upload/Expose_Lagoon_46_275.pdf"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 450 F",
          "yachtModelId": 1312687,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2020, 2019, 2018, 2017, 2016, 2015, 2011. Grassi Bateaux's 2017 flybridge example only; no transfer from Sporttop. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Grassi Bateaux: 2017 Lagoon 450 F original dealer listing",
              "url": "https://www.grassibateaux.com/lagoon-450-f-3/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh57",
        "manufacturer": "Yanmar",
        "model": "4JH57",
        "manufacturerRatedPowerKw": 41.9,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 4JH57 manufacturer fuel graph, 41.9 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH45 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh57ce",
      "manufacturer": "Yanmar",
      "model": "4JH57-CE",
      "displayName": "Yanmar 4JH57-CE",
      "engineReferenceId": "yanmar_4jh57",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot FP 44",
          "yachtModelId": 59311624,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026. BJ Marine's 2026 stock offer only; preserve CE suffix. No transfer from Helia 44 or another similarly numbered design. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "BJ Marine: 2026 Fountaine Pajot FP44 seller specification",
              "url": "https://uk.boats.com/sailing-boats/2026-fountaine-pajot-fp44-10360829/"
            }
          ],
          "engineFamilyReference": {
            "family": "4JH57",
            "reportedModel": "4JH57-CE",
            "referenceModel": "4JH57",
            "referenceId": "yanmar_4jh57",
            "basis": "reviewed-base-engine-family",
            "note": "Base-engine family reference: Yanmar 4JH57, using its digitized manufacturer fuel graph at 41.9 kW / 3000 RPM. The maker also lists the saildrive 4JH57-C at that rating. The vessel's CE label is retained in the research data. This is a representative base-engine curve, not a measured FP44 test or confirmation of identical CE calibration. Both engines are included.",
            "sources": [
              {
                "title": "YANMAR SD60 Operation Manual, 0ASDM-EN0023, May 2018",
                "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0023_2018.05.pdf",
                "kind": "manufacturer-document",
                "locator": "Specifications, printed page 37 / PDF page 41, Applicable engine model rows",
                "evidence": "3JH5CE and 3JH5AE-C are explicitly listed at 28.7 kW / 3000 RPM, and 4JH57-C at 41.9 kW / 3000 RPM. This supports a family-level rating reference, not proof that every ACE/CE commercial label is a universal manufacturer alias or has identical boat fuel use.",
                "access": "Manufacturer-hosted PDF and model-specific indexed table retrieved on 2026-10-17."
              }
            ]
          }
        }
      ],
      "engineFamilyReference": {
        "family": "4JH57",
        "reportedModel": "4JH57-CE",
        "referenceModel": "4JH57",
        "referenceId": "yanmar_4jh57",
        "basis": "reviewed-base-engine-family",
        "note": "Base-engine family reference: Yanmar 4JH57, using its digitized manufacturer fuel graph at 41.9 kW / 3000 RPM. The maker also lists the saildrive 4JH57-C at that rating. The vessel's CE label is retained in the research data. This is a representative base-engine curve, not a measured FP44 test or confirmation of identical CE calibration. Both engines are included.",
        "sources": [
          {
            "title": "YANMAR SD60 Operation Manual, 0ASDM-EN0023, May 2018",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0023_2018.05.pdf",
            "kind": "manufacturer-document",
            "locator": "Specifications, printed page 37 / PDF page 41, Applicable engine model rows",
            "evidence": "3JH5CE and 3JH5AE-C are explicitly listed at 28.7 kW / 3000 RPM, and 4JH57-C at 41.9 kW / 3000 RPM. This supports a family-level rating reference, not proof that every ACE/CE commercial label is a universal manufacturer alias or has identical boat fuel use.",
            "access": "Manufacturer-hosted PDF and model-specific indexed table retrieved on 2026-10-17."
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh57cr",
      "manufacturer": "Yanmar",
      "model": "4JH57CR",
      "displayName": "Yanmar 4JH57CR",
      "engineReferenceId": "review_yanmar_4jh57cr",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 440",
          "yachtModelId": 4033329,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Separately priced 57 hp shaft-drive version in the same January 2025 Sun Odyssey 440 sheet; no assumption that all four-cabin or three-cabin boats have it. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 440 manufacturer price list, B2025 January 2025",
              "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey440_price.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 455",
          "yachtModelId": 72664883,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Standard engine in the December 2025 manufacturer inventory for the new Sun Odyssey 455, consistent with the dealer's exact specification. Intended for the 2026-era model, not the older 440 or 449. Catalogue build years reviewed: 2026.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 455 original equipment inventory, December 2025",
              "url": "https://www.bateaux-antilles.fr/sites/www.bateaux-antilles.fr/files/documentation/other/21348/2025-0067-prprintinvvoileso455fr12-25.pdf"
            },
            {
              "title": "A&C Yacht Brokers: new-generation Sun Odyssey 455",
              "url": "https://www.bateaux-antilles.fr/bateaux-neufs/jeanneau/sun-odyssey-455.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 490",
          "yachtModelId": 4556104,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "57 hp saildrive propulsion package in the January 2025 Sun Odyssey 490 manufacturer sheet. Does not establish individual 2019/2020/2023/2024 catalogue installations. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 490 manufacturer price list, B2025 January 2025",
              "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey490_price.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh57cr",
        "manufacturer": "Yanmar",
        "model": "4JH57CR",
        "manufacturerRatedPowerKw": 41.9,
        "manufacturerRatedRpm": 3000,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 41.9 kW / 3000 RPM 4JH57 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh80",
      "manufacturer": "Yanmar",
      "model": "4JH80",
      "displayName": "Yanmar 4JH80",
      "engineReferenceId": "yanmar_4jh80",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.8",
          "yachtModelId": 10272424,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2024, 2023, 2022, 2021, 2020. 2023 Nina Yachting Marmaris vessel only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Nina Yachting: 2023 Bali 4.8, Marmaris seller listing",
              "url": "https://www.boats.com/sailing-boats/2023-bali-4-8-10363912/"
            }
          ]
        },
        {
          "brand": "Bali",
          "model": "Bali 5.2",
          "yachtModelId": 58680964,
          "engineCount": 2,
          "configuration": "factory-option",
          "applicability": "Catalogue build years: 2026. Dealer-published Bali 5.2 option; available order-year specification must be checked. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yachting 360: Bali 5.2 equipment specification",
              "url": "https://www.yachting360.fr/de/bateaux/bali-52"
            }
          ]
        },
        {
          "brand": "Bali",
          "model": "Bali 5.4",
          "yachtModelId": 3957928,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2023, 2021, 2020, 2019. 2019 six-guest-cabin vessel in Sicily only; no claim that every 2019-2023 hull has this option. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yacht Broker House: 2019 Bali 5.4, Sicily",
              "url": "https://www.ybh.gr/yachts/bali-54-2019"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C45",
          "yachtModelId": 8097042,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Dataset build years: 2019, 2023, 2024. Same C45 brochure's explicitly optional engine; not a conclusion from 80 hp alone.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria C45 manufacturer C-Line brochure, Italian dealer mirror",
              "url": "https://www.bavariayachts.it/index_htm_files/Brochure%20C45%20sito.pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C45 Style",
          "yachtModelId": 6031800,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2019, 2022, 2023. Only Yacht Broker House's 2019 Style boat; 2022/2023 builds not individually verified. Engine code repeated explicitly; inconsistent power figure omitted.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yacht Broker House: Bavaria C45 Style, 2019",
              "url": "https://www.ybh.gr/yachts/bavaria-c45-style"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C46",
          "yachtModelId": 34594232,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset build years: 2024, 2025, 2026. Only ADS Marine's 2024 C46. Not the differently designed Cruiser 46; 2025/2026 builds not individually verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "ADS Marine: 2024 Bavaria C46 vessel specification",
              "url": "https://ads-marine.com/en/used-boats/bavaria-c46?f=print_page&type=pdf"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C50",
          "yachtModelId": 10346816,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2024. Dealer's C50 page explicitly offers Holiday and Style with this engine; undated specification, not proof for every 2024 vessel.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
              "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C50 Holiday",
          "yachtModelId": 39145074,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2022, 2024. Holiday is explicitly named on the dealer's C50 specification page. No automatic proof for each 2022/2024 hull.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
              "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C50 Style",
          "yachtModelId": 8855152,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2023, 2024, 2025. Style is explicitly named on the dealer's C50 specification page. No automatic proof for each 2023-2025 hull.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
              "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C57",
          "yachtModelId": 1505965,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Dataset build years: 2017, 2024. C57 configuration in the 2020 manufacturer brochure. Search-indexed page 44 only; direct fetch failed. Not a claim for every 2017/2024 boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria C-Line manufacturer brochure, 2020 dealer-hosted original",
              "url": "https://efelnautic.com/wp-content/uploads/plovila/bavaria/C-Line/brochure/Brochure_C-Line_german-english_200220.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "First 53",
          "yachtModelId": 10624523,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2022, 2020. Modern Biscontini/Argento First Yacht 53, also sold as First 53. The Beneteau/Yanmar model panel identifies 4JH80; inconsistent power typography in that panel is not used for ratings. Not the older First 53F5.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
              "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 46.1",
          "yachtModelId": 7820066,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Explicitly labelled option in the Oceanis 46.1 brochure panel. Engine is 4JH80; SD60 is its drive and is not stored as an engine model.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
              "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 47",
          "yachtModelId": 64123960,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Separate larger propulsion version in the same new-generation Oceanis 47 retail list.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 47 retail list, Nautivela copy",
              "url": "https://nautivela.net/wp-content/uploads/2025/07/OCEANIS_47.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 51.1",
          "yachtModelId": 3734661,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset years: 2025, 2024, 2022, 2020, 2019, 2018. The B2025 list explicitly names the engine for Oceanis 51.1; earlier years and each owner/charter layout require individual verification.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 51.1 price list B2025, Kiriacoulis copy",
              "url": "https://www.kiriacoulis.com/sales/BeneteauOceanis51.1_price.pdf"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 48",
          "yachtModelId": 52057032,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "2025 Queensland monohull stock vessel only; catalogue covers 2025/2026. Not the 48 Catamaran, and SD60 is not retained as an engine model.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker stock listing: 2025 Dufour 48, Queensland",
              "url": "https://www.yachtworld.com/yacht/2025-dufour-48-10282855/"
            }
          ]
        },
        {
          "brand": "Dufour",
          "model": "Dufour 530",
          "yachtModelId": 10306351,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Separate 2024 Dufour 530 listing, reference 9555041, only. No inference about all later boats or ODSea+ electric motor identity.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker listing: 2024 Dufour 530, reference 9555041",
              "url": "https://www.youboat.com/boat/2024-dufour-530-9555041/"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan E6",
          "yachtModelId": 25647923,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Explicit option in the same 2022 B E6 specification only; installation must be checked on the boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan E6 Standard 2022 B equipment sheet, hosted by Sailway",
              "url": "https://sailway.es/wp-content/uploads/2022/02/E6_Standard-EU_2022B.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 43",
          "yachtModelId": 30818625,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Additional explicitly listed Impression 43 configuration in the same edition; boat-specific installation must be verified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression Line manufacturer brochure: Impression 43",
              "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45",
          "yachtModelId": 837181,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Additional explicit configuration for the current 12.82 m hull-length design only. No cross-generation engine or consumption-curve substitution.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression 45 manufacturer brochure, September 2024",
              "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 45 (ex. 43)",
          "yachtModelId": 55686823,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Additional explicit option in the pre-rename modern Impression 43 specification, with the generation/name bridge independently established by Elan. No universal 2024 availability or individual installation is asserted, and no inference is made from another model of similar length.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Impression 43 Standard 2023 A equipment specification",
              "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf"
            },
            {
              "title": "Elan Yachts: Impression 43 Gets Longer and Becomes Impression 45, 29 July 2024",
              "url": "https://www.elan-yachts.com/en/news/elan-impression-43-gets-longer-and-becomes-elan-impression-45"
            },
            {
              "title": "Elan Yachts: previous-model Impression 43 technical specification",
              "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-43"
            }
          ]
        },
        {
          "brand": "Elan",
          "model": "Elan Impression 50.1",
          "yachtModelId": 12895613,
          "engineCount": 1,
          "configuration": "published-standard",
          "applicability": "Current manufacturer specification only. Catalogue covers 2020, 2021, 2023 and 2024; not proof that all earlier 50.1 boats had this engine.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Elan Yachts: Impression 50.1 technical specification",
              "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-501"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 458",
          "yachtModelId": 8341114,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only 2024 Nebulas. Registry covers 2019-2025. This is an observed 2024 installation, not the standard for all Hanse 458 boats.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: 2024 Hanse 458 Nebulas",
              "url": "https://www.devalk.nl/en/yachtbrokerage/812187/HANSE-458.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 460",
          "yachtModelId": 22582938,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Wilkinson Marine's documented Hanse 460; the extracted machinery section does not establish build year. Registry covers 2022-2026. Do not assign a year-wide factory fit from this example.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Wilkinson Marine: Hanse 460",
              "url": "https://www.wilkinsonmarine.com/store/p159/Hanse_460.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 508",
          "yachtModelId": 8135909,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Yacht Broker House's 2023 Hanse 508 in Lavrio. Registry covers 2019-2025 and combines several cabin layouts; no claim for all other years or layouts.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yacht Broker House: 2023 Hanse 508 in Lavrio",
              "url": "https://boats.com/sailing-boats/2023-hanse-508-10256725/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Jeanneau 54",
          "yachtModelId": 1050362,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the broker's 2017 Jeanneau 54, reference 812290; not a claim about every 2016, 2017 or 2023 boat. Catalogue build years reviewed: 2016, 2017, 2023.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Jeanneau 54, reference 812290",
              "url": "https://www.devalk.nl/nl/jachtmakelaardij/812290/JEANNEAU-54.html"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 519",
          "yachtModelId": 1070507,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only the broker's 2018 Sun Odyssey 519 with a 2018 engine. Does not establish the catalogue's 2016 installation; no silent substitution of the 509's 4JH4-TCE. Catalogue build years reviewed: 2016, 2018.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "La Bottega del Mare: 2018 Sun Odyssey 519",
              "url": "https://www.labottegadelmare.com/barche-toscana/vendita-barche-usate/2018-Jeanneau-Sun_Odyssey_519-EN.pdf"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 50",
          "yachtModelId": 4327930,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2023, 2022, 2021, 2020, 2019, 2018. 2020 HORTZ vessel only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker seller listing: 2020 Lagoon 50 HORTZ",
              "url": "https://www.yachtworld.com/yacht/2020-lagoon-50-10055308/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 51",
          "yachtModelId": 30797964,
          "engineCount": 2,
          "configuration": "published-standard",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. A2026 list dated September 2025, covering its explicitly listed Lagoon 51 layouts; not proof of individual 2023-2025 engines. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Lagoon Katamaran Nord: Lagoon 51 price list A2026",
              "url": "https://www.lagoon-catamaran.de/fileadmin/Preislisten/A2026/Lagoon_51_Preisliste_A2026_EN.pdf"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 52 F",
          "yachtModelId": 6260488,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2021, 2019, 2017, 2013. 2017 St Thomas vessel with 2016 main engines only. Only two propulsion engines counted; the separately listed generator and tender engine are excluded. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker vessel listing: 2017 Lagoon 52 F, St Thomas",
              "url": "https://www.boattrader.com/boat/2017-lagoon-52-f-9455248/"
            },
            {
              "title": "The Multihull Company: 2020 Lagoon 52 F CHICAGO",
              "url": "https://www.multihullcompany.com/boat/lagoon-52-f-9978544/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 55",
          "yachtModelId": 23457678,
          "engineCount": 2,
          "configuration": "published-configuration",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. Marine Servicenter's 2026 new-boat offer only. Template gives 2022 engine years; this is a published offer, not proof of a particular delivered hull. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Marine Servicenter: 2026 Lagoon 55 new-boat offer",
              "url": "https://www.boats.com/sailing-boats/2026-lagoon-55-9020273/"
            }
          ]
        },
        {
          "brand": "Sunreef",
          "model": "Sunreef 50",
          "yachtModelId": 8327719,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only Med Cat Yachts' 2019 Sunreef 50 listing, available as a search-indexed original broker passage while full page shows maintenance. Registry covers 2020 and 2023, neither established by this 2019 vessel. Operator source hanse-mixed-s50-conflict for 2020 Solitaire contains malformed code 4JH4110 and conflicting power units, not accepted as another exact setup.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Med Cat Yachts: 2019 Sunreef 50 vessel listing",
              "url": "https://yachtway.com/vessels/sunreef-yachts-50-3/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh80",
        "manufacturer": "Yanmar",
        "model": "4JH80",
        "manufacturerRatedPowerKw": 58.8,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH80 manufacturer fuel graph, 58.8 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH110 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
            "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
            "page": 2,
            "edition": "DS_4JH80/110_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh80cr",
      "manufacturer": "Yanmar",
      "model": "4JH80CR",
      "displayName": "Yanmar 4JH80CR",
      "engineReferenceId": "review_yanmar_4jh80cr",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 455",
          "yachtModelId": 72664883,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Explicit manufacturer engine option in the December 2025 Sun Odyssey 455 inventory; saildrive and electronic throttle. Not a standard-fit assertion. Catalogue build years reviewed: 2026.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 455 original equipment inventory, December 2025",
              "url": "https://www.bateaux-antilles.fr/sites/www.bateaux-antilles.fr/files/documentation/other/21348/2025-0067-prprintinvvoileso455fr12-25.pdf"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Sun Odyssey 490",
          "yachtModelId": 4556104,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Separately priced 80 hp saildrive version in the same January 2025 Sun Odyssey 490 sheet. Neither saildrive name nor cabin count is used to infer the engine. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Sun Odyssey 490 manufacturer price list, B2025 January 2025",
              "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey490_price.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh80cr",
        "manufacturer": "Yanmar",
        "model": "4JH80CR",
        "manufacturerRatedPowerKw": 58.8,
        "manufacturerRatedRpm": 3200,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 58.8 kW / 3200 RPM 4JH80 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
            "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
            "page": 2,
            "edition": "DS_4JH80/110_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4jh110",
      "manufacturer": "Yanmar",
      "model": "4JH110",
      "displayName": "Yanmar 4JH110",
      "engineReferenceId": "yanmar_4jh110",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 5.2",
          "yachtModelId": 58680964,
          "engineCount": 2,
          "configuration": "factory-option",
          "applicability": "Catalogue build years: 2026. Dealer-published option; not established for every A2026 price-list revision. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Yachting 360: Bali 5.2 equipment specification",
              "url": "https://www.yachting360.fr/de/bateaux/bali-52"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C57",
          "yachtModelId": 1505965,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Dataset build years: 2017, 2024. Explicit optional engine in that C57 brochure. Later dealer specifications differ; do not treat this standard/option distinction as timeless.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria C-Line manufacturer brochure, 2020 dealer-hosted original",
              "url": "https://efelnautic.com/wp-content/uploads/plovila/bavaria/C-Line/brochure/Brochure_C-Line_german-english_200220.pdf"
            },
            {
              "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
              "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C57 Holiday",
          "yachtModelId": 2205485,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2018. Holiday is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2018 dataset boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
              "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/"
            }
          ]
        },
        {
          "brand": "Bavaria",
          "model": "Bavaria C57 Style",
          "yachtModelId": 37437575,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset build years: 2024. Style is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2024 dataset boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
              "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "First 53",
          "yachtModelId": 10624523,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "ZUMA, 2020 First 53, engine year 2020, as listed by Flagship Yacht Sales. Documents the larger installation, not the engine on every 2020 or 2022 boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Flagship Yacht Sales: ZUMA, 2020 Beneteau First 53, seller listing",
              "url": "https://www.boattrader.com/boat/2020-beneteau-first-53-9804165/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 51.1",
          "yachtModelId": 3734661,
          "engineCount": 1,
          "configuration": "factory-option",
          "applicability": "Separate propulsion version in the January 2025 list; not proof of the 110 hp option in every dataset year. No curve is inferred for this larger engine.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Beneteau Oceanis 51.1 price list B2025, Kiriacoulis copy",
              "url": "https://www.kiriacoulis.com/sales/BeneteauOceanis51.1_price.pdf"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 52",
          "yachtModelId": 69291510,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Dataset year: 2026. New Oceanis 52, not Oceanis 523 or an older 52-foot design. Both dealer sources publish 4JH110 CR. CR is retained here as an explicit common-rail technology annotation, not an additional model suffix: Yanmar's own model heading is 4JH110 and its combustion system is separately specified as common rail. Sport Nautic's 2026 engine field corroborates the now-unavailable Guasch offer; neither proves the engine in every dataset cabin layout.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Hermanos Guasch: Beneteau Oceanis 52, new 2026",
              "url": "https://hermanosguasch.com/es/ofertas/beneteau-oceanis-52-new-2026"
            },
            {
              "title": "Sport Nautic: Oceanis 52 STOCK, 2026",
              "url": "https://sportnautic.com/embarcacion/oceanis-52-stock/"
            },
            {
              "title": "Yanmar Marine International: 4JH110 official specification",
              "url": "https://www.yanmar.com/marine/product/engines/4jh110/"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 54",
          "yachtModelId": 23337163,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2024, 2023, 2022. Abayachting explicitly lists a 2023-built Oceanis 54 with three cabins plus crew and this engine. Applies to the modern 54 example only; not the older late-2000s Oceanis 54. Full PDF retrieval failed, so support is limited to the original broker's search-indexed particulars.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Abayachting: Beneteau Oceanis 54, 2023 vessel specification",
              "url": "https://www.abayachting.com/en/pdf/Beneteau-Oceanis-54-usata-2023/n97eIB1yIU2AmvxtTC4EvQ/v/bim/1"
            }
          ]
        },
        {
          "brand": "Beneteau",
          "model": "Oceanis 55",
          "yachtModelId": 967776,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset year: 2017. DARKSYDE is a 2017-built, 2018-model Oceanis 55, three-cabin owner's version, as documented by its selling broker. Not proof of the dataset's four-plus-one-cabin boat or every Oceanis 55.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Grabau International: DARKSYDE, 2017-built / 2018-model Oceanis 55, seller listing",
              "url": "https://www.yachtworld.co.uk/yacht/2017-beneteau-oceanis-55-10331268/"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 510",
          "yachtModelId": 30773405,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Hanse Vertriebs' 2023 Hanse 510 in Greifswald; this is the new Berret-Racoupeau generation, not the historical Hanse 510. Registry covers 2023-2026; no inferred fit for the other years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Hanse Vertriebs: 2023 Hanse 510 in Greifswald",
              "url": "https://www.boats.com/sailing-boats/2023-hanse-510-9603428/"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 548",
          "yachtModelId": 4327881,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Nina Yachting's 2020 Hanse 548 in Athens, within registry years 2018, 2019, 2020 and 2022. Listing platform misclassifies it as a power cruiser; engine field explicitly identifies 4JH110. No fit inferred for other registry years.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Nina Yachting: 2020 Hanse 548, Athens",
              "url": "https://uk.boats.com/power-boats/2020-hanse-548-10210022/"
            }
          ]
        },
        {
          "brand": "Jeanneau",
          "model": "Jeanneau 54",
          "yachtModelId": 1050362,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only G. Winter's Sailing Center's 2017 Jeanneau 54 Second Wind. Keep separate from the 4JH80 example; no claim that every charter layout has this engine. Catalogue build years reviewed: 2016, 2017, 2023.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "G. Winter's Sailing Center: 2017 Jeanneau 54 Second Wind",
              "url": "https://www.yachtworld.com/yacht/2017-jeanneau-54-10130239/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 55",
          "yachtModelId": 23457678,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. 2026 STELLA MARE charter vessel only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Horizon Yacht Sales: 2026 Lagoon 55 STELLA MARE",
              "url": "https://boats.com/sailing-boats/2026-lagoon-55-10311002/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh110",
        "manufacturer": "Yanmar",
        "model": "4JH110",
        "manufacturerRatedPowerKw": 80.9,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH110 manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH80 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
            "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
            "page": 2,
            "edition": "DS_4JH80/110_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4lv250",
      "manufacturer": "Yanmar",
      "model": "4LV-250",
      "displayName": "Yanmar 4LV-250",
      "engineReferenceId": "review_yanmar_4lv250",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Bali",
          "model": "Bali 4.3 MY",
          "yachtModelId": 12155572,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2020, 2022. Exact identity is documented only for Catamaran Center's 2019 PHILYA, outside those catalogue years; the seller's hyphenated label is preserved. It does not establish factory fit or the installation on the 2020/2022 catalogue boats. Inconsistent listing power units are not used.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Catamaran Center S.L: 2019 Bali 4.3 MY PHILYA seller listing",
              "url": "https://www.boats.com/power-boats/2019-bali-4-3-my-9099754/"
            }
          ]
        },
        {
          "brand": "Fountaine Pajot",
          "model": "Fountaine Pajot MY4.S",
          "yachtModelId": 23569313,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2022. MarineMax's 2022 VINO FLORIDA vessel only; distinct from MY 37 and MY5. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "MarineMax: 2022 MY4.S VINO FLORIDA",
              "url": "https://inventory.marinemax.com/products/2022-fountaine-pajot-my-4-s"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv250",
        "manufacturer": "Yanmar",
        "model": "4LV-250",
        "manufacturerRatedPowerKw": 184,
        "manufacturerRatedRpm": 3800,
        "note": "Yanmar 4LV250 manufacturer fuel graph, 184 kW / 3800 RPM, October 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV230/4LV250 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV230-250_A4_2021_1018_HR.pdf",
            "sha256": "43337d7361c998bb8bc21f2219919cd6c681a012e9a049c696a7ee15701cb41f",
            "page": 2,
            "edition": "DS_4LV230/250_A4_102021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4lv150",
      "manufacturer": "Yanmar",
      "model": "4LV150",
      "displayName": "Yanmar 4LV150",
      "engineReferenceId": "review_yanmar_4lv150",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Hanse",
          "model": "Hanse 588",
          "yachtModelId": 1360533,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only De Valk reference 812536, engine installed 2024. Registry includes 2024 among sampled years 2017-2025. Installation date alone is not confirmation of build year or universal changeover.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "De Valk: Hanse 588, reference 812536",
              "url": "https://www.devalk.nl/nl/brochure_full/812536/HANSE-588.html"
            }
          ]
        },
        {
          "brand": "Hanse",
          "model": "Hanse 590",
          "yachtModelId": 50892507,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Only Croatia Yachting's 2025 Hanse 590 in Kastela. Registry covers 2025 and 2026; this is a 2025 observed installation, not proof for every 2026 boat.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Croatia Yachting: 2025 Hanse 590 in Kastela",
              "url": "https://www.yachtworld.com/yacht/2025-hanse-590-9859175/"
            }
          ]
        },
        {
          "brand": "Lagoon",
          "model": "Lagoon 60",
          "yachtModelId": 50296116,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2026, 2025. 2025 Marina's Service sailing-catamaran vessel only; not an inferred fit for other 60-foot designs. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Marina's Service: 2025 Lagoon 60 seller listing",
              "url": "https://au.yachtworld.com/yacht/2025-lagoon-60-10039389/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv150",
        "manufacturer": "Yanmar",
        "model": "4LV150",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3500,
        "note": "Yanmar 4LV150 manufacturer fuel graph, 110 kW / 3500 RPM, December 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4lv150cr",
      "manufacturer": "Yanmar",
      "model": "4LV150CR",
      "displayName": "Yanmar 4LV150CR",
      "engineReferenceId": "review_yanmar_4lv150cr",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Jeanneau",
          "model": "Jeanneau 60",
          "yachtModelId": 13356601,
          "engineCount": 1,
          "configuration": "published-configuration",
          "applicability": "Jeanneau Yachts 60 propulsion package in the January 2025 manufacturer price list. Same named contemporary design, but the catalogue's individual 2023 hull is not verified; do not infer an installation or retrofit date. Catalogue build years reviewed: 2023.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Jeanneau Yachts 60 manufacturer price list, B2025 January 2025",
              "url": "https://www.kiriacoulis.com/sales/JeanneauYachts60_price.pdf"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv150cr",
        "manufacturer": "Yanmar",
        "model": "4LV150CR",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3500,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 110 kW / 3500 RPM 4LV150 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4lv170",
      "manufacturer": "Yanmar",
      "model": "4LV170",
      "displayName": "Yanmar 4LV170",
      "engineReferenceId": "review_yanmar_4lv170",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Sunreef",
          "model": "Sunreef 60",
          "yachtModelId": 7817754,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Only SSL Yachts' 2024 sailing Sunreef 60. Registry years 2020, 2022, 2025 and 2026 do not include this example; no universal changeover or Power-model fit asserted.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "SSL Yachts: 2024 Sunreef 60",
              "url": "https://sslyachts.com/sunreef-60-6a9c0ad765e69"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv170",
        "manufacturer": "Yanmar",
        "model": "4LV170",
        "manufacturerRatedPowerKw": 125,
        "manufacturerRatedRpm": 3500,
        "note": "Yanmar 4LV170 manufacturer fuel graph, 125 kW / 3500 RPM, December 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-4lv195",
      "manufacturer": "Yanmar",
      "model": "4LV195",
      "displayName": "Yanmar 4LV195",
      "engineReferenceId": "review_yanmar_4lv195",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Lagoon",
          "model": "Lagoon Sixty 5",
          "yachtModelId": 12782297,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2024, 2021. 2024 BIG PICTURE sailing SIXTY 5 only. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Broker seller listing: 2024 Lagoon SIXTY 5 BIG PICTURE",
              "url": "https://www.boats.com/sailing-boats/2024-lagoon-sixty-5-9153332/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv195",
        "manufacturer": "Yanmar",
        "model": "4LV195",
        "manufacturerRatedPowerKw": 143,
        "manufacturerRatedRpm": 3500,
        "note": "Yanmar 4LV195 manufacturer fuel graph, 143 kW / 3500 RPM, December 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    },
    {
      "id": "yanmar-6by3160",
      "manufacturer": "Yanmar",
      "model": "6BY3-160",
      "displayName": "Yanmar 6BY3-160",
      "engineReferenceId": "review_yanmar_6by3160",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Beneteau",
          "model": "Oceanis Yacht 62",
          "yachtModelId": 2840387,
          "engineCount": 1,
          "configuration": "documented-vessel",
          "applicability": "Dataset years: 2022, 2017. Azul reference 2085 documents a 2018 Oceanis Yacht 62, not either dataset boat. Exact 6BY3-160 is preserved. Later 2022 broker material supplied only 4LV plus power, so a 4LV suffix was not inferred and the 2022 entry remains individually unverified.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Azul Yachts: Oceanis Yacht 62, 2018, Odoo reference 2085",
              "url": "https://www.azulyachts.com/en/my/products/2085/ficha_en"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_6by3160",
        "manufacturer": "Yanmar",
        "model": "6BY3-160",
        "manufacturerRatedPowerKw": 117,
        "manufacturerRatedRpm": 2800,
        "note": "Exact 6BY3-160 original Yanmar product-page fuel graph image, 117 kW / 2800 RPM, explicitly labelled load exponent 2.5. Nineteen trace readings at 1000-2800 RPM; linear interpolation only, no extrapolation. The specification PDF contains power and torque, not this fuel graph; the source link opens the actual manufacturer image. Not 6BY3-220/260, earlier BY2 or a measured Oceanis Yacht 62 trial.",
        "sources": [
          {
            "title": "YANMAR 6BY3-160 Fuel consumption (load exp. 2.5), official product-page graph",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/06/6BY3-160_fuel_curve.jpg",
            "sha256": "8ac255024d84ed4471b87e6dce738148f93ac3003be9299e5dcce0f63ee25c82",
            "format": "manufacturer-image",
            "mediaType": "image/jpeg",
            "page": null,
            "edition": "Undated original manufacturer image; accessed 2026-10-18. Upload URL is not treated as publication date.",
            "productUrl": "https://www.yanmar.com/marine/product/engines/6by3-160/",
            "specificationUrl": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-6BY3-160-Datasheet.pdf",
            "locator": "Original manufacturer hourly fuel graph image"
          }
        ]
      }
    },
    {
      "id": "yanmar-6ly400",
      "manufacturer": "Yanmar",
      "model": "6LY400",
      "displayName": "Yanmar 6LY400",
      "engineReferenceId": "review_yanmar_6ly400",
      "curveAvailable": true,
      "boats": [
        {
          "brand": "Lagoon",
          "model": "Lagoon Sixty 7",
          "yachtModelId": 32811604,
          "engineCount": 2,
          "configuration": "documented-vessel",
          "applicability": "Catalogue build years: 2023. Simpson Marine motor-catamaran inventory 9152998 only. Vessel build year not established from the reviewed indexed passage, so it does not confirm the catalogue's 2023 boat. Not the sailing SIXTY 5. Vessel evidence is not universal factory fit.",
          "curveAvailable": true,
          "curveBlockedReason": null,
          "sources": [
            {
              "title": "Simpson Marine: Lagoon SIXTY 7, reference 9152998",
              "url": "https://www.simpsonmarine.com/yachts/Lagoon-SIXTY%207-9152998/pdf/"
            }
          ]
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_6ly400",
        "manufacturer": "Yanmar",
        "model": "6LY400",
        "manufacturerRatedPowerKw": 294,
        "manufacturerRatedRpm": 3300,
        "note": "Yanmar 6LY400 manufacturer fuel graph, 294 kW / 3300 RPM, April 2026 datasheet.",
        "sources": [
          {
            "title": "YANMAR 6LY400/6LY440 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2025/10/6LY400-440_DS_A4_2026_0413-HR.pdf",
            "sha256": "2e1d15dc2ea875e75c579c4b335eac065ecb9ec0d14c99a5d1085810c7be98c8",
            "page": 2,
            "edition": "DS_6LY400/440_A4_04-2026",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      }
    }
  ],
  "engines": [
    {
      "id": "yanmar_2ym15",
      "manufacturer": "Yanmar",
      "model": "2YM15",
      "aliases": [
        "2ym15",
        "2ym15c",
        "2ym15sd",
        "2ym15"
      ],
      "variants": [
        "2YM15",
        "2YM15C",
        "2YM15SD"
      ],
      "displayName": "Yanmar 2YM15",
      "ratedPowerHp": 13.6,
      "ratedPowerKw": 10,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 2YM15 manufacturer fuel graph, 10 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1800,
          "lph": 0.6
        },
        {
          "rpm": 1900,
          "lph": 0.7
        },
        {
          "rpm": 2000,
          "lph": 0.8
        },
        {
          "rpm": 2100,
          "lph": 0.9
        },
        {
          "rpm": 2200,
          "lph": 1
        },
        {
          "rpm": 2300,
          "lph": 1.1
        },
        {
          "rpm": 2400,
          "lph": 1.2
        },
        {
          "rpm": 2500,
          "lph": 1.35
        },
        {
          "rpm": 2600,
          "lph": 1.5
        },
        {
          "rpm": 2700,
          "lph": 1.65
        },
        {
          "rpm": 2800,
          "lph": 1.8
        },
        {
          "rpm": 2900,
          "lph": 1.95
        },
        {
          "rpm": 3000,
          "lph": 2.1
        },
        {
          "rpm": 3100,
          "lph": 2.3
        },
        {
          "rpm": 3200,
          "lph": 2.5
        },
        {
          "rpm": 3300,
          "lph": 2.75
        },
        {
          "rpm": 3400,
          "lph": 3
        },
        {
          "rpm": 3500,
          "lph": 3.3
        },
        {
          "rpm": 3600,
          "lph": 3.6
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_2ym15",
        "manufacturer": "Yanmar",
        "model": "2YM15",
        "manufacturerRatedPowerKw": 10,
        "manufacturerRatedRpm": 3600,
        "note": "Yanmar 2YM15 manufacturer fuel graph, 10 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used.",
        "sources": [
          {
            "title": "Yanmar 2YM15 Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_2YM15_A4_022021_HR.pdf",
            "sha256": "915fb11655bc70dee066f3c84fa54955b279fb993b7fee80204c7a2010e7b372",
            "page": 2,
            "edition": "DS_2YM15_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 2YM15 Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_2YM15_A4_022021_HR.pdf",
        "sha256": "915fb11655bc70dee066f3c84fa54955b279fb993b7fee80204c7a2010e7b372",
        "page": 2,
        "edition": "DS_2YM15_A4_022021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "2YM15",
        "sourceCurveId": "2YM15",
        "sourceRatedPowerKw": 10,
        "sourceEdition": "DS_2YM15_A4_022021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 2YM15 manufacturer fuel graph, 10 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "915fb11655bc70dee066f3c84fa54955b279fb993b7fee80204c7a2010e7b372",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_3ym20",
      "manufacturer": "Yanmar",
      "model": "3YM20",
      "aliases": [
        "3ym20",
        "3ym20c",
        "3ym20sd",
        "3ym20"
      ],
      "variants": [
        "3YM20",
        "3YM20C",
        "3YM20SD"
      ],
      "displayName": "Yanmar 3YM20",
      "ratedPowerHp": 20.8,
      "ratedPowerKw": 15.3,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 3YM20 manufacturer fuel graph, 15.3 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1800,
          "lph": 1
        },
        {
          "rpm": 1900,
          "lph": 1.1
        },
        {
          "rpm": 2000,
          "lph": 1.2
        },
        {
          "rpm": 2100,
          "lph": 1.3
        },
        {
          "rpm": 2200,
          "lph": 1.45
        },
        {
          "rpm": 2300,
          "lph": 1.6
        },
        {
          "rpm": 2400,
          "lph": 1.75
        },
        {
          "rpm": 2500,
          "lph": 1.95
        },
        {
          "rpm": 2600,
          "lph": 2.15
        },
        {
          "rpm": 2700,
          "lph": 2.35
        },
        {
          "rpm": 2800,
          "lph": 2.55
        },
        {
          "rpm": 2900,
          "lph": 2.8
        },
        {
          "rpm": 3000,
          "lph": 3.1
        },
        {
          "rpm": 3100,
          "lph": 3.35
        },
        {
          "rpm": 3200,
          "lph": 3.7
        },
        {
          "rpm": 3300,
          "lph": 4.05
        },
        {
          "rpm": 3400,
          "lph": 4.4
        },
        {
          "rpm": 3500,
          "lph": 4.85
        },
        {
          "rpm": 3600,
          "lph": 5.25
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3ym20",
        "manufacturer": "Yanmar",
        "model": "3YM20",
        "manufacturerRatedPowerKw": 15.3,
        "manufacturerRatedRpm": 3600,
        "note": "Yanmar 3YM20 manufacturer fuel graph, 15.3 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used.",
        "sources": [
          {
            "title": "Yanmar 3YM20 Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3YM20_A4_022021_HR.pdf",
            "sha256": "2824549c9c964cf0c73663023b0a69a19d579248f00bf82386b0321fdca63fdd",
            "page": 2,
            "edition": "DS_3YM20_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 3YM20 Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3YM20_A4_022021_HR.pdf",
        "sha256": "2824549c9c964cf0c73663023b0a69a19d579248f00bf82386b0321fdca63fdd",
        "page": 2,
        "edition": "DS_3YM20_A4_022021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "3YM20",
        "sourceCurveId": "3YM20",
        "sourceRatedPowerKw": 15.3,
        "sourceEdition": "DS_3YM20_A4_022021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 3YM20 manufacturer fuel graph, 15.3 kW / 3600 RPM. Only the plotted 1800-3600 RPM range is used."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "2824549c9c964cf0c73663023b0a69a19d579248f00bf82386b0321fdca63fdd",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_3ym30",
      "manufacturer": "Yanmar",
      "model": "3YM30",
      "aliases": [
        "3ym30",
        "3ym30ae",
        "3ym30c",
        "3ym30sd",
        "3ym30"
      ],
      "variants": [
        "3YM30",
        "3YM30AE",
        "3YM30C",
        "3YM30SD"
      ],
      "displayName": "Yanmar 3YM30",
      "ratedPowerHp": 30,
      "ratedPowerKw": 22.1,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Legacy 1.115 L / 3600 RPM 3YM30 manufacturer graph, installation manual JUN 2006 Rev. 1, Figure 10. Uses ISO 3046-1 / 25 C fuel-inlet conditions (22.1 kW), not the alternative ISO 8665 / 40 C 21.3 kW rating. Fuel readings are not power-rescaled. Only plotted 2000-3600 RPM is offered. Not the 3200 RPM 3YM30AE; ambiguous setup-level model labels remain blocked.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 2000,
          "lph": 1.05
        },
        {
          "rpm": 2100,
          "lph": 1.25
        },
        {
          "rpm": 2200,
          "lph": 1.45
        },
        {
          "rpm": 2300,
          "lph": 1.7
        },
        {
          "rpm": 2400,
          "lph": 1.9
        },
        {
          "rpm": 2500,
          "lph": 2.2
        },
        {
          "rpm": 2600,
          "lph": 2.55
        },
        {
          "rpm": 2700,
          "lph": 2.9
        },
        {
          "rpm": 2800,
          "lph": 3.25
        },
        {
          "rpm": 2900,
          "lph": 3.6
        },
        {
          "rpm": 3000,
          "lph": 4
        },
        {
          "rpm": 3100,
          "lph": 4.45
        },
        {
          "rpm": 3200,
          "lph": 4.9
        },
        {
          "rpm": 3300,
          "lph": 5.35
        },
        {
          "rpm": 3400,
          "lph": 5.85
        },
        {
          "rpm": 3500,
          "lph": 6.45
        },
        {
          "rpm": 3600,
          "lph": 7.15
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3ym30",
        "manufacturer": "Yanmar",
        "model": "3YM30",
        "manufacturerRatedPowerKw": 22.1,
        "manufacturerRatedRpm": 3600,
        "note": "Legacy 1.115 L / 3600 RPM 3YM30 manufacturer graph, installation manual JUN 2006 Rev. 1, Figure 10. Uses ISO 3046-1 / 25 C fuel-inlet conditions (22.1 kW), not the alternative ISO 8665 / 40 C 21.3 kW rating. Fuel readings are not power-rescaled. Only plotted 2000-3600 RPM is offered. Not the 3200 RPM 3YM30AE; ambiguous setup-level model labels remain blocked.",
        "sources": [
          {
            "title": "Yanmar 3YM30 Marine Installation Manual Volume 2 - Performance Curves",
            "url": "https://www.maritimepropulsion.com/files/pdf/1001374",
            "sha256": "acef7cfdfa601fafdfad24942b1d14f3ab3b3c94b67023867cebb85021f1be10",
            "page": 15,
            "edition": "JUN 2006 (Rev. 1), printed 3YM30-15, Figure 10",
            "locator": "PDF page 15, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 3YM30 Marine Installation Manual Volume 2 - Performance Curves",
        "url": "https://www.maritimepropulsion.com/files/pdf/1001374",
        "sha256": "acef7cfdfa601fafdfad24942b1d14f3ab3b3c94b67023867cebb85021f1be10",
        "page": 15,
        "edition": "JUN 2006 (Rev. 1), printed 3YM30-15, Figure 10",
        "locator": "PDF page 15, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "3YM30",
        "sourceCurveId": "3YM30",
        "sourceRatedPowerKw": 22.1,
        "sourceEdition": "JUN 2006 (Rev. 1), printed 3YM30-15, Figure 10",
        "applicability": "model-specific",
        "applicabilityNote": "Legacy 1.115 L / 3600 RPM 3YM30 manufacturer graph, installation manual JUN 2006 Rev. 1, Figure 10. Uses ISO 3046-1 / 25 C fuel-inlet conditions (22.1 kW), not the alternative ISO 8665 / 40 C 21.3 kW rating. Fuel readings are not power-rescaled. Only plotted 2000-3600 RPM is offered. Not the 3200 RPM 3YM30AE; ambiguous setup-level model labels remain blocked."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-Bezier-path-intersection",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "acef7cfdfa601fafdfad24942b1d14f3ab3b3c94b67023867cebb85021f1be10",
        "sourcePage": 15
      }
    },
    {
      "id": "yanmar_3jh4e",
      "manufacturer": "Yanmar",
      "model": "3JH4E",
      "aliases": [
        "3jh4e",
        "3jh4e-te",
        "3jh4e"
      ],
      "variants": [
        "3JH4E",
        "3JH4E-TE"
      ],
      "displayName": "Yanmar 3JH4E",
      "ratedPowerHp": 40,
      "ratedPowerKw": 29.4,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "extrapolated_from_rated_power",
      "sourceNotes": [
        "Model metadata is based on manufacturer specifications or product bulletins.",
        "RPM fuel-rate points are estimated, not guaranteed manufacturer bench values."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 800,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.45
        },
        {
          "rpm": 1500,
          "lph": 1.24
        },
        {
          "rpm": 1800,
          "lph": 2.15
        },
        {
          "rpm": 2000,
          "lph": 2.95
        },
        {
          "rpm": 2200,
          "lph": 3.92
        },
        {
          "rpm": 2500,
          "lph": 5.76
        },
        {
          "rpm": 2800,
          "lph": 8.09
        },
        {
          "rpm": 3000,
          "lph": 9.95
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3jh4e",
        "manufacturer": "Yanmar",
        "model": "3JH4E",
        "manufacturerRatedPowerKw": 29.4,
        "manufacturerRatedRpm": 3000,
        "sourceIds": [
          "jh-4-old"
        ],
        "note": "The historical manual lists 29.4 and 28.7 kW under different fuel-test conditions. The supplied estimate uses 29.4 kW; operating-condition differences remain relevant.",
        "sources": [
          {
            "title": "YANMAR JH4 operation manual, 2006 revision",
            "url": "https://www.yanmar.fi/content/download/14006/102939/file/JH4_OM_Rev_01_18DEC06.pdf",
            "locator": "Printed page 87, 3JH4E Engine Specifications",
            "access": "Search-indexed manufacturer manual; direct browser fetch failed during review"
          }
        ]
      }
    },
    {
      "id": "yanmar_3jh5e",
      "manufacturer": "Yanmar",
      "model": "3JH5E",
      "aliases": [
        "3jh5e",
        "3jh5e"
      ],
      "variants": [
        "3JH5E"
      ],
      "displayName": "Yanmar 3JH5E",
      "ratedPowerHp": 39,
      "ratedPowerKw": 28.7,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 3JH5E manufacturer graph, 28.7 kW / 3000 RPM. The datasheet rating replaces the earlier 29.4 kW generic estimate.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 1.35
        },
        {
          "rpm": 1700,
          "lph": 1.6
        },
        {
          "rpm": 1800,
          "lph": 1.85
        },
        {
          "rpm": 1900,
          "lph": 2.15
        },
        {
          "rpm": 2000,
          "lph": 2.5
        },
        {
          "rpm": 2100,
          "lph": 2.85
        },
        {
          "rpm": 2200,
          "lph": 3.2
        },
        {
          "rpm": 2300,
          "lph": 3.55
        },
        {
          "rpm": 2400,
          "lph": 3.95
        },
        {
          "rpm": 2500,
          "lph": 4.45
        },
        {
          "rpm": 2600,
          "lph": 5
        },
        {
          "rpm": 2700,
          "lph": 5.7
        },
        {
          "rpm": 2800,
          "lph": 6.5
        },
        {
          "rpm": 2900,
          "lph": 7.45
        },
        {
          "rpm": 3000,
          "lph": 8.4
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3jh5e",
        "manufacturer": "Yanmar",
        "model": "3JH5E",
        "manufacturerRatedPowerKw": 28.7,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 3JH5E manufacturer graph, 28.7 kW / 3000 RPM. The datasheet rating replaces the earlier 29.4 kW generic estimate.",
        "sources": [
          {
            "title": "Yanmar 3JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH5_A4_022021_HR.pdf",
            "sha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
            "page": 2,
            "edition": "DS_3JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 3JH5E Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH5_A4_022021_HR.pdf",
        "sha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
        "page": 2,
        "edition": "DS_3JH5E_A4_022021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "3JH5E",
        "sourceCurveId": "3JH5E",
        "sourceRatedPowerKw": 28.7,
        "sourceEdition": "DS_3JH5E_A4_022021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 3JH5E manufacturer graph, 28.7 kW / 3000 RPM. The datasheet rating replaces the earlier 29.4 kW generic estimate."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_3jh40",
      "manufacturer": "Yanmar",
      "model": "3JH40",
      "aliases": [
        "3jh40",
        "3jh40"
      ],
      "variants": [
        "3JH40"
      ],
      "displayName": "Yanmar 3JH40",
      "ratedPowerHp": 40,
      "ratedPowerKw": 29.4,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 3JH40 manufacturer fuel graph, 29.4 kW / 3000 RPM, February 2021 datasheet.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.6
        },
        {
          "rpm": 1100,
          "lph": 0.75
        },
        {
          "rpm": 1200,
          "lph": 0.85
        },
        {
          "rpm": 1300,
          "lph": 1
        },
        {
          "rpm": 1400,
          "lph": 1.15
        },
        {
          "rpm": 1500,
          "lph": 1.35
        },
        {
          "rpm": 1600,
          "lph": 1.55
        },
        {
          "rpm": 1700,
          "lph": 1.8
        },
        {
          "rpm": 1800,
          "lph": 2.1
        },
        {
          "rpm": 1900,
          "lph": 2.4
        },
        {
          "rpm": 2000,
          "lph": 2.75
        },
        {
          "rpm": 2100,
          "lph": 3.1
        },
        {
          "rpm": 2200,
          "lph": 3.6
        },
        {
          "rpm": 2300,
          "lph": 4.05
        },
        {
          "rpm": 2400,
          "lph": 4.55
        },
        {
          "rpm": 2500,
          "lph": 5.1
        },
        {
          "rpm": 2600,
          "lph": 5.7
        },
        {
          "rpm": 2700,
          "lph": 6.4
        },
        {
          "rpm": 2800,
          "lph": 7.1
        },
        {
          "rpm": 2900,
          "lph": 7.9
        },
        {
          "rpm": 3000,
          "lph": 8.75
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3jh40",
        "manufacturer": "Yanmar",
        "model": "3JH40",
        "manufacturerRatedPowerKw": 29.4,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 3JH40 manufacturer fuel graph, 29.4 kW / 3000 RPM, February 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 3JH40 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH40_A4_022021_HR.pdf",
            "sha256": "96b24c528a309da34d2aff864ce7acca14942d1b480f091a304e4bd8b755ce5b",
            "page": 2,
            "edition": "DS_3JH40_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 3JH40 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH40_A4_022021_HR.pdf",
        "sha256": "96b24c528a309da34d2aff864ce7acca14942d1b480f091a304e4bd8b755ce5b",
        "page": 2,
        "edition": "DS_3JH40_A4_022021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "3JH40",
        "sourceCurveId": "3JH40",
        "sourceRatedPowerKw": 29.4,
        "sourceEdition": "DS_3JH40_A4_022021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 3JH40 manufacturer fuel graph, 29.4 kW / 3000 RPM, February 2021 datasheet."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.05,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "96b24c528a309da34d2aff864ce7acca14942d1b480f091a304e4bd8b755ce5b",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_4jh45",
      "manufacturer": "Yanmar",
      "model": "4JH45",
      "aliases": [
        "4jh45",
        "4jh45"
      ],
      "variants": [
        "4JH45"
      ],
      "displayName": "Yanmar 4JH45",
      "ratedPowerHp": 45,
      "ratedPowerKw": 33.1,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 4JH45 manufacturer fuel graph, 33.1 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH57 graph in the same document.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.75
        },
        {
          "rpm": 1100,
          "lph": 0.9
        },
        {
          "rpm": 1200,
          "lph": 1.05
        },
        {
          "rpm": 1300,
          "lph": 1.2
        },
        {
          "rpm": 1400,
          "lph": 1.4
        },
        {
          "rpm": 1500,
          "lph": 1.6
        },
        {
          "rpm": 1600,
          "lph": 1.8
        },
        {
          "rpm": 1700,
          "lph": 2.1
        },
        {
          "rpm": 1800,
          "lph": 2.4
        },
        {
          "rpm": 1900,
          "lph": 2.7
        },
        {
          "rpm": 2000,
          "lph": 3.1
        },
        {
          "rpm": 2100,
          "lph": 3.5
        },
        {
          "rpm": 2200,
          "lph": 4
        },
        {
          "rpm": 2300,
          "lph": 4.55
        },
        {
          "rpm": 2400,
          "lph": 5.1
        },
        {
          "rpm": 2500,
          "lph": 5.7
        },
        {
          "rpm": 2600,
          "lph": 6.4
        },
        {
          "rpm": 2700,
          "lph": 7.2
        },
        {
          "rpm": 2800,
          "lph": 8.05
        },
        {
          "rpm": 2900,
          "lph": 8.95
        },
        {
          "rpm": 3000,
          "lph": 9.85
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh45",
        "manufacturer": "Yanmar",
        "model": "4JH45",
        "manufacturerRatedPowerKw": 33.1,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 4JH45 manufacturer fuel graph, 33.1 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH57 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
        "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "page": 2,
        "edition": "DS_4JH45/57_A4_01292021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH45",
        "sourceCurveId": "4JH45",
        "sourceRatedPowerKw": 33.1,
        "sourceEdition": "DS_4JH45/57_A4_01292021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4JH45 manufacturer fuel graph, 33.1 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH57 graph in the same document."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_4jh57",
      "manufacturer": "Yanmar",
      "model": "4JH57",
      "aliases": [
        "4jh57",
        "4jh57"
      ],
      "variants": [
        "4JH57"
      ],
      "displayName": "Yanmar 4JH57",
      "ratedPowerHp": 57,
      "ratedPowerKw": 41.9,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 4JH57 manufacturer fuel graph, 41.9 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH45 graph in the same document.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.65
        },
        {
          "rpm": 1100,
          "lph": 0.8
        },
        {
          "rpm": 1200,
          "lph": 0.95
        },
        {
          "rpm": 1300,
          "lph": 1.15
        },
        {
          "rpm": 1400,
          "lph": 1.3
        },
        {
          "rpm": 1500,
          "lph": 1.5
        },
        {
          "rpm": 1600,
          "lph": 1.75
        },
        {
          "rpm": 1700,
          "lph": 2.05
        },
        {
          "rpm": 1800,
          "lph": 2.3
        },
        {
          "rpm": 1900,
          "lph": 2.65
        },
        {
          "rpm": 2000,
          "lph": 3
        },
        {
          "rpm": 2100,
          "lph": 3.45
        },
        {
          "rpm": 2200,
          "lph": 3.95
        },
        {
          "rpm": 2300,
          "lph": 4.5
        },
        {
          "rpm": 2400,
          "lph": 5.05
        },
        {
          "rpm": 2500,
          "lph": 5.65
        },
        {
          "rpm": 2600,
          "lph": 6.35
        },
        {
          "rpm": 2700,
          "lph": 7.2
        },
        {
          "rpm": 2800,
          "lph": 8.05
        },
        {
          "rpm": 2900,
          "lph": 8.95
        },
        {
          "rpm": 3000,
          "lph": 9.8
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh57",
        "manufacturer": "Yanmar",
        "model": "4JH57",
        "manufacturerRatedPowerKw": 41.9,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 4JH57 manufacturer fuel graph, 41.9 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH45 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
        "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "page": 2,
        "edition": "DS_4JH45/57_A4_01292021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH57",
        "sourceCurveId": "4JH57",
        "sourceRatedPowerKw": 41.9,
        "sourceEdition": "DS_4JH45/57_A4_01292021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4JH57 manufacturer fuel graph, 41.9 kW / 3000 RPM, February 2021 datasheet. Separate from the 4JH45 graph in the same document."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_4jh80",
      "manufacturer": "Yanmar",
      "model": "4JH80",
      "aliases": [
        "4jh80",
        "4jh80"
      ],
      "variants": [
        "4JH80"
      ],
      "displayName": "Yanmar 4JH80",
      "ratedPowerHp": 79.9,
      "ratedPowerKw": 58.8,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 4JH80 manufacturer fuel graph, 58.8 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH110 graph in the same document.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.7
        },
        {
          "rpm": 1100,
          "lph": 0.9
        },
        {
          "rpm": 1200,
          "lph": 1.05
        },
        {
          "rpm": 1300,
          "lph": 1.3
        },
        {
          "rpm": 1400,
          "lph": 1.55
        },
        {
          "rpm": 1500,
          "lph": 1.85
        },
        {
          "rpm": 1600,
          "lph": 2.15
        },
        {
          "rpm": 1700,
          "lph": 2.55
        },
        {
          "rpm": 1800,
          "lph": 2.95
        },
        {
          "rpm": 1900,
          "lph": 3.45
        },
        {
          "rpm": 2000,
          "lph": 4
        },
        {
          "rpm": 2100,
          "lph": 4.55
        },
        {
          "rpm": 2200,
          "lph": 5.2
        },
        {
          "rpm": 2300,
          "lph": 5.9
        },
        {
          "rpm": 2400,
          "lph": 6.7
        },
        {
          "rpm": 2500,
          "lph": 7.6
        },
        {
          "rpm": 2600,
          "lph": 8.6
        },
        {
          "rpm": 2700,
          "lph": 9.75
        },
        {
          "rpm": 2800,
          "lph": 11
        },
        {
          "rpm": 2900,
          "lph": 12.3
        },
        {
          "rpm": 3000,
          "lph": 13.65
        },
        {
          "rpm": 3100,
          "lph": 14.95
        },
        {
          "rpm": 3200,
          "lph": 16.2
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh80",
        "manufacturer": "Yanmar",
        "model": "4JH80",
        "manufacturerRatedPowerKw": 58.8,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH80 manufacturer fuel graph, 58.8 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH110 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
            "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
            "page": 2,
            "edition": "DS_4JH80/110_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
        "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
        "page": 2,
        "edition": "DS_4JH80/110_A4_052022",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH80",
        "sourceCurveId": "4JH80",
        "sourceRatedPowerKw": 58.8,
        "sourceEdition": "DS_4JH80/110_A4_052022",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4JH80 manufacturer fuel graph, 58.8 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH110 graph in the same document."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_4jh110",
      "manufacturer": "Yanmar",
      "model": "4JH110",
      "aliases": [
        "4jh110",
        "4jh110"
      ],
      "variants": [
        "4JH110"
      ],
      "displayName": "Yanmar 4JH110",
      "ratedPowerHp": 110,
      "ratedPowerKw": 80.9,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "Yanmar 4JH110 manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH80 graph in the same document.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.85
        },
        {
          "rpm": 1100,
          "lph": 1.1
        },
        {
          "rpm": 1200,
          "lph": 1.35
        },
        {
          "rpm": 1300,
          "lph": 1.65
        },
        {
          "rpm": 1400,
          "lph": 1.95
        },
        {
          "rpm": 1500,
          "lph": 2.35
        },
        {
          "rpm": 1600,
          "lph": 2.8
        },
        {
          "rpm": 1700,
          "lph": 3.3
        },
        {
          "rpm": 1800,
          "lph": 3.9
        },
        {
          "rpm": 1900,
          "lph": 4.55
        },
        {
          "rpm": 2000,
          "lph": 5.3
        },
        {
          "rpm": 2100,
          "lph": 6.05
        },
        {
          "rpm": 2200,
          "lph": 6.95
        },
        {
          "rpm": 2300,
          "lph": 8
        },
        {
          "rpm": 2400,
          "lph": 9.1
        },
        {
          "rpm": 2500,
          "lph": 10.4
        },
        {
          "rpm": 2600,
          "lph": 11.8
        },
        {
          "rpm": 2700,
          "lph": 13.35
        },
        {
          "rpm": 2800,
          "lph": 14.95
        },
        {
          "rpm": 2900,
          "lph": 16.5
        },
        {
          "rpm": 3000,
          "lph": 18.1
        },
        {
          "rpm": 3100,
          "lph": 19.8
        },
        {
          "rpm": 3200,
          "lph": 21.55
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh110",
        "manufacturer": "Yanmar",
        "model": "4JH110",
        "manufacturerRatedPowerKw": 80.9,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH110 manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH80 graph in the same document.",
        "sources": [
          {
            "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
            "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
            "page": 2,
            "edition": "DS_4JH80/110_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
        "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
        "page": 2,
        "edition": "DS_4JH80/110_A4_052022",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH110",
        "sourceCurveId": "4JH110",
        "sourceRatedPowerKw": 80.9,
        "sourceEdition": "DS_4JH80/110_A4_052022",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4JH110 manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet. Separate from the 4JH80 graph in the same document."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
        "sourcePage": 2
      }
    },
    {
      "id": "volvo_d1_13",
      "manufacturer": "Volvo Penta",
      "model": "D1-13",
      "aliases": [
        "d1-13",
        "d1-13f",
        "d113"
      ],
      "variants": [
        "D1-13",
        "D1-13F"
      ],
      "displayName": "Volvo Penta D1-13",
      "ratedPowerHp": 12.2,
      "ratedPowerKw": 9,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D1-13 graph from the English 12-2016 leaflet, rated 9.0 kW. This edition replaces the earlier generic 9.6 kW estimate; confirm the installed engine generation.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.3
        },
        {
          "rpm": 1300,
          "lph": 0.4
        },
        {
          "rpm": 1400,
          "lph": 0.5
        },
        {
          "rpm": 1500,
          "lph": 0.55
        },
        {
          "rpm": 1600,
          "lph": 0.6
        },
        {
          "rpm": 1700,
          "lph": 0.65
        },
        {
          "rpm": 1800,
          "lph": 0.7
        },
        {
          "rpm": 1900,
          "lph": 0.8
        },
        {
          "rpm": 2000,
          "lph": 0.9
        },
        {
          "rpm": 2100,
          "lph": 1
        },
        {
          "rpm": 2200,
          "lph": 1.1
        },
        {
          "rpm": 2300,
          "lph": 1.25
        },
        {
          "rpm": 2400,
          "lph": 1.4
        },
        {
          "rpm": 2500,
          "lph": 1.5
        },
        {
          "rpm": 2600,
          "lph": 1.6
        },
        {
          "rpm": 2700,
          "lph": 1.8
        },
        {
          "rpm": 2800,
          "lph": 2
        },
        {
          "rpm": 2900,
          "lph": 2.25
        },
        {
          "rpm": 3000,
          "lph": 2.5
        },
        {
          "rpm": 3100,
          "lph": 2.8
        },
        {
          "rpm": 3200,
          "lph": 3.1
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_13",
        "manufacturer": "Volvo Penta",
        "model": "D1-13",
        "manufacturerRatedPowerKw": 9,
        "manufacturerRatedRpm": 3200,
        "note": "D1-13 graph from the English 12-2016 leaflet, rated 9.0 kW. This edition replaces the earlier generic 9.6 kW estimate; confirm the installed engine generation.",
        "sources": [
          {
            "title": "Volvo Penta D1-13 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709028",
            "sha256": "dffb7b295135c8bb99abe02f38393f6c3bbc25cb76d38cc42fd038ffa7d23282",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D1-13 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709028",
        "sha256": "dffb7b295135c8bb99abe02f38393f6c3bbc25cb76d38cc42fd038ffa7d23282",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D1-13",
        "sourceCurveId": "D1-13",
        "sourceRatedPowerKw": 9,
        "sourceEdition": "English 12-2016",
        "applicability": "model-specific",
        "applicabilityNote": "D1-13 graph from the English 12-2016 leaflet, rated 9.0 kW. This edition replaces the earlier generic 9.6 kW estimate; confirm the installed engine generation."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "dffb7b295135c8bb99abe02f38393f6c3bbc25cb76d38cc42fd038ffa7d23282",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d1_20",
      "manufacturer": "Volvo Penta",
      "model": "D1-20",
      "aliases": [
        "d1-20",
        "d1-20f",
        "d120"
      ],
      "variants": [
        "D1-20",
        "D1-20F"
      ],
      "displayName": "Volvo Penta D1-20",
      "ratedPowerHp": 18.8,
      "ratedPowerKw": 13.8,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D1-20 manufacturer graph, English 12-2016, 13.8 kW. This is an engine/load reference, not a boat test.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.5
        },
        {
          "rpm": 1300,
          "lph": 0.6
        },
        {
          "rpm": 1400,
          "lph": 0.7
        },
        {
          "rpm": 1500,
          "lph": 0.8
        },
        {
          "rpm": 1600,
          "lph": 0.9
        },
        {
          "rpm": 1700,
          "lph": 0.95
        },
        {
          "rpm": 1800,
          "lph": 1
        },
        {
          "rpm": 1900,
          "lph": 1.15
        },
        {
          "rpm": 2000,
          "lph": 1.3
        },
        {
          "rpm": 2100,
          "lph": 1.45
        },
        {
          "rpm": 2200,
          "lph": 1.6
        },
        {
          "rpm": 2300,
          "lph": 1.8
        },
        {
          "rpm": 2400,
          "lph": 2
        },
        {
          "rpm": 2500,
          "lph": 2.2
        },
        {
          "rpm": 2600,
          "lph": 2.4
        },
        {
          "rpm": 2700,
          "lph": 2.7
        },
        {
          "rpm": 2800,
          "lph": 3
        },
        {
          "rpm": 2900,
          "lph": 3.35
        },
        {
          "rpm": 3000,
          "lph": 3.7
        },
        {
          "rpm": 3100,
          "lph": 4.15
        },
        {
          "rpm": 3200,
          "lph": 4.6
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_20",
        "manufacturer": "Volvo Penta",
        "model": "D1-20",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3200,
        "note": "D1-20 manufacturer graph, English 12-2016, 13.8 kW. This is an engine/load reference, not a boat test.",
        "sources": [
          {
            "title": "Volvo Penta D1-20 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709035",
            "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D1-20 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709035",
        "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D1-20",
        "sourceCurveId": "D1-20",
        "sourceRatedPowerKw": 13.8,
        "sourceEdition": "English 12-2016",
        "applicability": "model-specific",
        "applicabilityNote": "D1-20 manufacturer graph, English 12-2016, 13.8 kW. This is an engine/load reference, not a boat test."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d1_30",
      "manufacturer": "Volvo Penta",
      "model": "D1-30",
      "aliases": [
        "d1-30",
        "d1-30f",
        "d130"
      ],
      "variants": [
        "D1-30",
        "D1-30F"
      ],
      "displayName": "Volvo Penta D1-30",
      "ratedPowerHp": 27.2,
      "ratedPowerKw": 20,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D1-30 graph from the English 12-2016 leaflet, rated 20.0 kW. This edition replaces the earlier generic 20.9 kW estimate; it is not applied to the separately rated B/F variants.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.8
        },
        {
          "rpm": 1300,
          "lph": 0.95
        },
        {
          "rpm": 1400,
          "lph": 1
        },
        {
          "rpm": 1500,
          "lph": 0.9
        },
        {
          "rpm": 1600,
          "lph": 0.9
        },
        {
          "rpm": 1700,
          "lph": 1.15
        },
        {
          "rpm": 1800,
          "lph": 1.5
        },
        {
          "rpm": 1900,
          "lph": 1.7
        },
        {
          "rpm": 2000,
          "lph": 1.9
        },
        {
          "rpm": 2100,
          "lph": 2.15
        },
        {
          "rpm": 2200,
          "lph": 2.4
        },
        {
          "rpm": 2300,
          "lph": 2.65
        },
        {
          "rpm": 2400,
          "lph": 2.9
        },
        {
          "rpm": 2500,
          "lph": 3.2
        },
        {
          "rpm": 2600,
          "lph": 3.6
        },
        {
          "rpm": 2700,
          "lph": 3.95
        },
        {
          "rpm": 2800,
          "lph": 4.4
        },
        {
          "rpm": 2900,
          "lph": 4.9
        },
        {
          "rpm": 3000,
          "lph": 5.5
        },
        {
          "rpm": 3100,
          "lph": 6.1
        },
        {
          "rpm": 3200,
          "lph": 6.7
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_30",
        "manufacturer": "Volvo Penta",
        "model": "D1-30",
        "manufacturerRatedPowerKw": 20,
        "manufacturerRatedRpm": 3200,
        "note": "D1-30 graph from the English 12-2016 leaflet, rated 20.0 kW. This edition replaces the earlier generic 20.9 kW estimate; it is not applied to the separately rated B/F variants.",
        "sources": [
          {
            "title": "Volvo Penta D1-30 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709042",
            "sha256": "d32077e98cf588ac4ce35c1face110ffe8c197e346a941fefa0a770befdd6e34",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D1-30 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709042",
        "sha256": "d32077e98cf588ac4ce35c1face110ffe8c197e346a941fefa0a770befdd6e34",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D1-30",
        "sourceCurveId": "D1-30",
        "sourceRatedPowerKw": 20,
        "sourceEdition": "English 12-2016",
        "applicability": "model-specific",
        "applicabilityNote": "D1-30 graph from the English 12-2016 leaflet, rated 20.0 kW. This edition replaces the earlier generic 20.9 kW estimate; it is not applied to the separately rated B/F variants."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "native_raster_trace",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "d32077e98cf588ac4ce35c1face110ffe8c197e346a941fefa0a770befdd6e34",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d2_40",
      "manufacturer": "Volvo Penta",
      "model": "D2-40",
      "aliases": [
        "d2-40",
        "d2-40f",
        "d240"
      ],
      "variants": [
        "D2-40",
        "D2-40F"
      ],
      "displayName": "Volvo Penta D2-40",
      "ratedPowerHp": 39.6,
      "ratedPowerKw": 29.1,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D2-40 manufacturer fuel graph, English 09-2007, 29.1 kW / 3200 RPM. Uses the historical rating, not the differently rated later 27 kW leaflet. No power formula or power-rescaling is used.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.9
        },
        {
          "rpm": 1300,
          "lph": 0.95
        },
        {
          "rpm": 1400,
          "lph": 1.1
        },
        {
          "rpm": 1500,
          "lph": 1.3
        },
        {
          "rpm": 1600,
          "lph": 1.5
        },
        {
          "rpm": 1700,
          "lph": 1.7
        },
        {
          "rpm": 1800,
          "lph": 1.9
        },
        {
          "rpm": 1900,
          "lph": 2.1
        },
        {
          "rpm": 2000,
          "lph": 2.4
        },
        {
          "rpm": 2100,
          "lph": 2.75
        },
        {
          "rpm": 2200,
          "lph": 3.1
        },
        {
          "rpm": 2300,
          "lph": 3.45
        },
        {
          "rpm": 2400,
          "lph": 3.8
        },
        {
          "rpm": 2500,
          "lph": 4.25
        },
        {
          "rpm": 2600,
          "lph": 4.8
        },
        {
          "rpm": 2700,
          "lph": 5.4
        },
        {
          "rpm": 2800,
          "lph": 6
        },
        {
          "rpm": 2900,
          "lph": 6.7
        },
        {
          "rpm": 3000,
          "lph": 7.5
        },
        {
          "rpm": 3100,
          "lph": 8.45
        },
        {
          "rpm": 3200,
          "lph": 9.5
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_40",
        "manufacturer": "Volvo Penta",
        "model": "D2-40",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3200,
        "note": "D2-40 manufacturer fuel graph, English 09-2007, 29.1 kW / 3200 RPM. Uses the historical rating, not the differently rated later 27 kW leaflet. No power formula or power-rescaling is used.",
        "sources": [
          {
            "title": "Volvo Penta D2-40 Product Bulletin",
            "model": "D2-40",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
            "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-40 Product Bulletin",
        "model": "D2-40",
        "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
        "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
        "page": 1,
        "edition": "English 09-2007",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-40",
        "sourceCurveId": "volvo-d240-29_1kw",
        "sourceRatedPowerKw": 29.1,
        "sourceEdition": "English 09-2007",
        "applicability": "model-specific",
        "applicabilityNote": "D2-40 manufacturer fuel graph, English 09-2007, 29.1 kW / 3200 RPM. Uses the historical rating, not the differently rated later 27 kW leaflet. No power formula or power-rescaling is used."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d2_50",
      "manufacturer": "Volvo Penta",
      "model": "D2-50",
      "aliases": [
        "d2-50",
        "d2-50f",
        "d250"
      ],
      "variants": [
        "D2-50",
        "D2-50F"
      ],
      "displayName": "Volvo Penta D2-50",
      "ratedPowerHp": 51,
      "ratedPowerKw": 37.5,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D2-50 manufacturer graph, English 11-2022, 37.5 kW. Only the plotted 1600-3000 RPM range is used.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 1.6
        },
        {
          "rpm": 1700,
          "lph": 1.9
        },
        {
          "rpm": 1800,
          "lph": 2.3
        },
        {
          "rpm": 1900,
          "lph": 2.7
        },
        {
          "rpm": 2000,
          "lph": 3.2
        },
        {
          "rpm": 2100,
          "lph": 3.7
        },
        {
          "rpm": 2200,
          "lph": 4.3
        },
        {
          "rpm": 2300,
          "lph": 4.9
        },
        {
          "rpm": 2400,
          "lph": 5.6
        },
        {
          "rpm": 2500,
          "lph": 6.35
        },
        {
          "rpm": 2600,
          "lph": 7.2
        },
        {
          "rpm": 2700,
          "lph": 8.15
        },
        {
          "rpm": 2800,
          "lph": 9.2
        },
        {
          "rpm": 2900,
          "lph": 10.35
        },
        {
          "rpm": 3000,
          "lph": 11.5
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_50",
        "manufacturer": "Volvo Penta",
        "model": "D2-50",
        "manufacturerRatedPowerKw": 37.5,
        "manufacturerRatedRpm": 3000,
        "note": "D2-50 manufacturer graph, English 11-2022, 37.5 kW. Only the plotted 1600-3000 RPM range is used.",
        "sources": [
          {
            "title": "Volvo Penta D2-50 product specification",
            "url": "https://pubs.volvopenta.com/publications/47710130",
            "sha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-50 product specification",
        "url": "https://pubs.volvopenta.com/publications/47710130",
        "sha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-50",
        "sourceCurveId": "D2-50",
        "sourceRatedPowerKw": 37.5,
        "sourceEdition": "English 11-2022",
        "applicability": "model-specific",
        "applicabilityNote": "D2-50 manufacturer graph, English 11-2022, 37.5 kW. Only the plotted 1600-3000 RPM range is used."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "native_raster_trace",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d2_55",
      "manufacturer": "Volvo Penta",
      "model": "D2-55",
      "aliases": [
        "d2-55",
        "d2-55a",
        "d2-55b",
        "d255"
      ],
      "variants": [
        "D2-55",
        "D2-55A",
        "D2-55B"
      ],
      "displayName": "Volvo Penta D2-55",
      "ratedPowerHp": 55,
      "ratedPowerKw": 41,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D2-55 manufacturer fuel graph, English 07-2013, at calculated propeller load exponent 3. The table prints 41 kW and the graph legend 40.5 kW; values are digitized without power-rescaling. This replaces the former generic 40 kW estimate.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 2.2
        },
        {
          "rpm": 1600,
          "lph": 2.45
        },
        {
          "rpm": 1700,
          "lph": 2.75
        },
        {
          "rpm": 1800,
          "lph": 3.1
        },
        {
          "rpm": 1900,
          "lph": 3.4
        },
        {
          "rpm": 2000,
          "lph": 3.85
        },
        {
          "rpm": 2100,
          "lph": 4.4
        },
        {
          "rpm": 2200,
          "lph": 5.05
        },
        {
          "rpm": 2300,
          "lph": 5.75
        },
        {
          "rpm": 2400,
          "lph": 6.5
        },
        {
          "rpm": 2500,
          "lph": 7.2
        },
        {
          "rpm": 2600,
          "lph": 7.95
        },
        {
          "rpm": 2700,
          "lph": 8.9
        },
        {
          "rpm": 2800,
          "lph": 10.05
        },
        {
          "rpm": 2900,
          "lph": 11.35
        },
        {
          "rpm": 3000,
          "lph": 12.75
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_55",
        "manufacturer": "Volvo Penta",
        "model": "D2-55",
        "manufacturerRatedPowerKw": 41,
        "manufacturerRatedRpm": 3000,
        "note": "D2-55 manufacturer fuel graph, English 07-2013, at calculated propeller load exponent 3. The table prints 41 kW and the graph legend 40.5 kW; values are digitized without power-rescaling. This replaces the former generic 40 kW estimate.",
        "sources": [
          {
            "title": "Volvo Penta D2-55 product specification, English 07-2013",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
            "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
            "page": 1,
            "edition": "English 07-2013",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-55 product specification, English 07-2013",
        "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
        "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
        "page": 1,
        "edition": "English 07-2013",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-55",
        "sourceCurveId": "D2-55",
        "sourceRatedPowerKw": 41,
        "sourceEdition": "English 07-2013",
        "applicability": "model-specific",
        "applicabilityNote": "D2-55 manufacturer fuel graph, English 07-2013, at calculated propeller load exponent 3. The table prints 41 kW and the graph legend 40.5 kW; values are digitized without power-rescaling. This replaces the former generic 40 kW estimate."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated original PDF vector trace 2 (calculated propeller load); short internal dash-gap interpolation",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d2_60",
      "manufacturer": "Volvo Penta",
      "model": "D2-60",
      "aliases": [
        "d2-60",
        "d2-60f",
        "d260"
      ],
      "variants": [
        "D2-60",
        "D2-60F"
      ],
      "displayName": "Volvo Penta D2-60",
      "ratedPowerHp": 59.8,
      "ratedPowerKw": 44,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D2-60 manufacturer graph, English 11-2022, 44 kW; replaces the earlier generic 43 kW estimate. Confirm the engine generation.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.8
        },
        {
          "rpm": 1300,
          "lph": 0.7
        },
        {
          "rpm": 1400,
          "lph": 0.7
        },
        {
          "rpm": 1500,
          "lph": 0.8
        },
        {
          "rpm": 1600,
          "lph": 1.1
        },
        {
          "rpm": 1700,
          "lph": 1.6
        },
        {
          "rpm": 1800,
          "lph": 2.25
        },
        {
          "rpm": 1900,
          "lph": 3
        },
        {
          "rpm": 2000,
          "lph": 3.8
        },
        {
          "rpm": 2100,
          "lph": 4.55
        },
        {
          "rpm": 2200,
          "lph": 5.25
        },
        {
          "rpm": 2300,
          "lph": 6.05
        },
        {
          "rpm": 2400,
          "lph": 7
        },
        {
          "rpm": 2500,
          "lph": 8.1
        },
        {
          "rpm": 2600,
          "lph": 9.3
        },
        {
          "rpm": 2700,
          "lph": 10.65
        },
        {
          "rpm": 2800,
          "lph": 12.1
        },
        {
          "rpm": 2900,
          "lph": 13.6
        },
        {
          "rpm": 3000,
          "lph": 15.1
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_60",
        "manufacturer": "Volvo Penta",
        "model": "D2-60",
        "manufacturerRatedPowerKw": 44,
        "manufacturerRatedRpm": 3000,
        "note": "D2-60 manufacturer graph, English 11-2022, 44 kW; replaces the earlier generic 43 kW estimate. Confirm the engine generation.",
        "sources": [
          {
            "title": "Volvo Penta D2-60 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709927",
            "sha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-60 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709927",
        "sha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-60",
        "sourceCurveId": "D2-60",
        "sourceRatedPowerKw": 44,
        "sourceEdition": "English 11-2022",
        "applicability": "model-specific",
        "applicabilityNote": "D2-60 manufacturer graph, English 11-2022, 44 kW; replaces the earlier generic 43 kW estimate. Confirm the engine generation."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "native_raster_trace",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d2_75",
      "manufacturer": "Volvo Penta",
      "model": "D2-75",
      "aliases": [
        "d2-75",
        "d2-75f",
        "d275"
      ],
      "variants": [
        "D2-75",
        "D2-75F"
      ],
      "displayName": "Volvo Penta D2-75",
      "ratedPowerHp": 74.8,
      "ratedPowerKw": 55,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "sourceNotes": [
        "D2-75 manufacturer graph, English 11-2022, 55 kW. This is an engine/load reference, not a boat test.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 1
        },
        {
          "rpm": 1300,
          "lph": 1.6
        },
        {
          "rpm": 1400,
          "lph": 2.1
        },
        {
          "rpm": 1500,
          "lph": 2.4
        },
        {
          "rpm": 1600,
          "lph": 2.7
        },
        {
          "rpm": 1700,
          "lph": 3.15
        },
        {
          "rpm": 1800,
          "lph": 3.7
        },
        {
          "rpm": 1900,
          "lph": 4.2
        },
        {
          "rpm": 2000,
          "lph": 4.8
        },
        {
          "rpm": 2100,
          "lph": 5.65
        },
        {
          "rpm": 2200,
          "lph": 6.5
        },
        {
          "rpm": 2300,
          "lph": 7.2
        },
        {
          "rpm": 2400,
          "lph": 8
        },
        {
          "rpm": 2500,
          "lph": 9.2
        },
        {
          "rpm": 2600,
          "lph": 10.6
        },
        {
          "rpm": 2700,
          "lph": 11.9
        },
        {
          "rpm": 2800,
          "lph": 13.5
        },
        {
          "rpm": 2900,
          "lph": 15.65
        },
        {
          "rpm": 3000,
          "lph": 18.2
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_75",
        "manufacturer": "Volvo Penta",
        "model": "D2-75",
        "manufacturerRatedPowerKw": 55,
        "manufacturerRatedRpm": 3000,
        "note": "D2-75 manufacturer graph, English 11-2022, 55 kW. This is an engine/load reference, not a boat test.",
        "sources": [
          {
            "title": "Volvo Penta D2-75 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709063",
            "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-75 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709063",
        "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-75",
        "sourceCurveId": "D2-75",
        "sourceRatedPowerKw": 55,
        "sourceEdition": "English 11-2022",
        "applicability": "model-specific",
        "applicabilityNote": "D2-75 manufacturer graph, English 11-2022, 55 kW. This is an engine/load reference, not a boat test."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
        "sourcePage": 1
      }
    },
    {
      "id": "review_nanni_n5230cr2_2019",
      "manufacturer": "Nanni",
      "model": "N5.230 CR2",
      "aliases": [],
      "variants": [
        "N5.230 CR2"
      ],
      "displayName": "Nanni N5.230 CR2",
      "ratedPowerHp": 228.4,
      "ratedPowerKw": 168,
      "ratedRpm": 2600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_numeric_load_table",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Exact initial-2019 N5.230 CR2 numeric propeller-load table, M4 168 kW / 2600 RPM, ISO 3046. The source's 228-cv rounded label and a broker's 230-hp label are not used to rescale the fuel values. Later leaflet torque entries are internally inconsistent and do not establish identical calibration for every installed boat.",
        "Per-engine manufacturer calculated propeller-load-exp.3 reference, not measured boat use. Nine exact printed rows; straight-line interpolation within 1000-2600 RPM only, no extrapolation. Representative family use must be explicitly reviewed when boat sources omit CR2. Preserve edition and installation uncertainty."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 3.2
        },
        {
          "rpm": 1200,
          "lph": 5.2
        },
        {
          "rpm": 1400,
          "lph": 8.5
        },
        {
          "rpm": 1600,
          "lph": 11.7
        },
        {
          "rpm": 1800,
          "lph": 16.2
        },
        {
          "rpm": 2000,
          "lph": 22
        },
        {
          "rpm": 2200,
          "lph": 28.6
        },
        {
          "rpm": 2400,
          "lph": 39.5
        },
        {
          "rpm": 2600,
          "lph": 49.9
        }
      ],
      "fuelReferenceSource": {
        "title": "Nanni N5 CR2 Operator Manual, initial May 2019, exact N5.230CR2 data sheet DFRGBT02029",
        "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXT09013_N5.CR2_Small.pdf#page=100",
        "kind": "manufacturer-document",
        "sha256": "d861aec1454bb902ff3975710e6dc5b6eaf501c206ed94e2aeeafb41061bec4a",
        "page": 100,
        "edition": "DGBXXT09013, initial 05/2019; cover DGBXXT090013; exact appendix DFRGBT02029, ISO 3046",
        "locator": "PDF page 100, FUEL SYSTEM, Fuel consumption propeller load exp.3, l/h row; exact identity and 2600 RPM page 99; M4/ISO 3046 page 102",
        "evidence": "Nine original RPM/L/h pairs, 1000-2600 RPM, explicitly labelled propeller-load exponent 3. Separate full-load and US-gallon rows are not substituted. Exact 168 kW / 2600 RPM N5.230 CR2, John Deere 4.5 L common rail, 16.7:1. Source edition retained; no rescaling to a vessel's 230 hp label or later-calibration equivalence claimed.",
        "access": "Manufacturer-hosted original downloaded privately, SHA-256 verified; complete relevant pages rendered and visually inspected; independent PDF-cell extraction exactly matched all nine copied L/h values."
      },
      "curveConditions": {
        "loadExponent": 3,
        "sourceId": "nanni-n5230cr2-dgbxxt09013-2019-propeller-table",
        "loadBasis": "manufacturer_explicit_propeller_load",
        "loadConditionNote": "Explicit propeller-load-exp.3 L/h fuel-row label in the initial 2019 manual, PDF page 100; not inferred from a separate power plot.",
        "boatMeasurement": false,
        "extrapolation": "none"
      },
      "ratingReview": {
        "referenceId": "review_nanni_n5230cr2_2019",
        "manufacturer": "Nanni",
        "model": "N5.230 CR2",
        "manufacturerRatedPowerKw": 168,
        "manufacturerRatedRpm": 2600,
        "warning": false,
        "warningNote": "",
        "note": "Exact initial-2019 N5.230 CR2 numeric propeller-load table, M4 168 kW / 2600 RPM, ISO 3046. The source's 228-cv rounded label and a broker's 230-hp label are not used to rescale the fuel values. Later leaflet torque entries are internally inconsistent and do not establish identical calibration for every installed boat. Per-engine manufacturer calculated propeller-load-exp.3 reference, not measured boat use. Nine exact printed rows; straight-line interpolation within 1000-2600 RPM only, no extrapolation. Representative family use must be explicitly reviewed when boat sources omit CR2. Preserve edition and installation uncertainty.",
        "sources": [
          {
            "title": "Nanni N5 CR2 Operator Manual, initial May 2019, exact N5.230CR2 data sheet DFRGBT02029",
            "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXT09013_N5.CR2_Small.pdf#page=100",
            "kind": "manufacturer-document",
            "sha256": "d861aec1454bb902ff3975710e6dc5b6eaf501c206ed94e2aeeafb41061bec4a",
            "page": 100,
            "edition": "DGBXXT09013, initial 05/2019; cover DGBXXT090013; exact appendix DFRGBT02029, ISO 3046",
            "locator": "PDF page 100, FUEL SYSTEM, Fuel consumption propeller load exp.3, l/h row; exact identity and 2600 RPM page 99; M4/ISO 3046 page 102",
            "evidence": "Nine original RPM/L/h pairs, 1000-2600 RPM, explicitly labelled propeller-load exponent 3. Separate full-load and US-gallon rows are not substituted. Exact 168 kW / 2600 RPM N5.230 CR2, John Deere 4.5 L common rail, 16.7:1. Source edition retained; no rescaling to a vessel's 230 hp label or later-calibration equivalence claimed.",
            "access": "Manufacturer-hosted original downloaded privately, SHA-256 verified; complete relevant pages rendered and visually inspected; independent PDF-cell extraction exactly matched all nine copied L/h values."
          }
        ]
      }
    },
    {
      "id": "review_yanmar_3jh5_family",
      "manufacturer": "Yanmar",
      "model": "3JH5",
      "aliases": [],
      "variants": [
        "3JH5"
      ],
      "displayName": "Yanmar 3JH5",
      "ratedPowerHp": 39,
      "ratedPowerKw": 28.7,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 28.7 kW / 3000 RPM 3JH5E manufacturer graph for the reviewed 3JH5 base family. The reported ACE saildrive variant remains a representative family match, not independently certified by this graph.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 1.35
        },
        {
          "rpm": 1700,
          "lph": 1.6
        },
        {
          "rpm": 1800,
          "lph": 1.85
        },
        {
          "rpm": 1900,
          "lph": 2.15
        },
        {
          "rpm": 2000,
          "lph": 2.5
        },
        {
          "rpm": 2100,
          "lph": 2.85
        },
        {
          "rpm": 2200,
          "lph": 3.2
        },
        {
          "rpm": 2300,
          "lph": 3.55
        },
        {
          "rpm": 2400,
          "lph": 3.95
        },
        {
          "rpm": 2500,
          "lph": 4.45
        },
        {
          "rpm": 2600,
          "lph": 5
        },
        {
          "rpm": 2700,
          "lph": 5.7
        },
        {
          "rpm": 2800,
          "lph": 6.5
        },
        {
          "rpm": 2900,
          "lph": 7.45
        },
        {
          "rpm": 3000,
          "lph": 8.4
        }
      ],
      "referenceScope": "base-engine-family",
      "manufacturerReferenceModel": "3JH5E / 3JH5AE",
      "ratingReview": {
        "referenceId": "review_yanmar_3jh5_family",
        "manufacturer": "Yanmar",
        "model": "3JH5",
        "manufacturerRatedPowerKw": 28.7,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 28.7 kW / 3000 RPM 3JH5E manufacturer graph for the reviewed 3JH5 base family. The reported ACE saildrive variant remains a representative family match, not independently certified by this graph.",
        "sources": [
          {
            "title": "Yanmar 3JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH5_A4_022021_HR.pdf",
            "sha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
            "page": 2,
            "edition": "DS_3JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 3JH5E Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_3JH5_A4_022021_HR.pdf",
        "sha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
        "page": 2,
        "edition": "DS_3JH5E_A4_022021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "3JH5E",
        "sourceCurveId": "3JH5E",
        "sourceRatedPowerKw": 28.7,
        "sourceEdition": "DS_3JH5E_A4_022021",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 28.7 kW / 3000 RPM 3JH5E manufacturer graph for the reviewed 3JH5 base family. The reported ACE saildrive variant remains a representative family match, not independently certified by this graph."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "d9972146661742316a94f088f64d8fa939d49429a23d683836db157eddabaf64",
        "sourcePage": 2
      }
    },
    {
      "id": "volvo_md2020",
      "manufacturer": "Volvo Penta",
      "model": "MD2020",
      "aliases": [],
      "variants": [
        "MD2020"
      ],
      "displayName": "Volvo Penta MD2020",
      "ratedPowerHp": 18.8,
      "ratedPowerKw": 13.8,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "extrapolated_from_rated_power",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "MD2020 planning reference uses the published 13.8 kW crankshaft rating and 3600 RPM, the upper endpoint of the manufacturer's 3200-3600 full-throttle range. The selected boat's actual maximum RPM has not been measured.",
        "Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.45
        },
        {
          "rpm": 1100,
          "lph": 0.45
        },
        {
          "rpm": 1200,
          "lph": 0.45
        },
        {
          "rpm": 1300,
          "lph": 0.45
        },
        {
          "rpm": 1400,
          "lph": 0.45
        },
        {
          "rpm": 1500,
          "lph": 0.45
        },
        {
          "rpm": 1600,
          "lph": 0.45
        },
        {
          "rpm": 1700,
          "lph": 0.492
        },
        {
          "rpm": 1800,
          "lph": 0.584
        },
        {
          "rpm": 1900,
          "lph": 0.687
        },
        {
          "rpm": 2000,
          "lph": 0.801
        },
        {
          "rpm": 2100,
          "lph": 0.927
        },
        {
          "rpm": 2200,
          "lph": 1.066
        },
        {
          "rpm": 2300,
          "lph": 1.218
        },
        {
          "rpm": 2400,
          "lph": 1.384
        },
        {
          "rpm": 2500,
          "lph": 1.564
        },
        {
          "rpm": 2600,
          "lph": 1.76
        },
        {
          "rpm": 2700,
          "lph": 1.971
        },
        {
          "rpm": 2800,
          "lph": 2.198
        },
        {
          "rpm": 2900,
          "lph": 2.442
        },
        {
          "rpm": 3000,
          "lph": 2.703
        },
        {
          "rpm": 3100,
          "lph": 2.983
        },
        {
          "rpm": 3200,
          "lph": 3.281
        },
        {
          "rpm": 3300,
          "lph": 3.598
        },
        {
          "rpm": 3400,
          "lph": 3.935
        },
        {
          "rpm": 3500,
          "lph": 4.292
        },
        {
          "rpm": 3600,
          "lph": 4.671
        }
      ],
      "curveAssumptions": {
        "loadExponent": 3,
        "bsfcGramsPerKwh": 285,
        "dieselDensityKgPerLitre": 0.842,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 4.671021377672209,
        "formula": "max(minimumFuelLph, ratedPowerKw * bsfcGramsPerKwh / 1000 / dieselDensityKgPerLitre * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "volvo_md2020",
        "manufacturer": "Volvo Penta",
        "model": "MD2020",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3600,
        "warning": false,
        "warningNote": "",
        "note": "MD2020 planning reference uses the published 13.8 kW crankshaft rating and 3600 RPM, the upper endpoint of the manufacturer's 3200-3600 full-throttle range. The selected boat's actual maximum RPM has not been measured. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2020 manufacturer product bulletin, April 2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2020.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2: Technical Data and calculated-load power diagram",
            "evidence": "Manufacturer bulletin gives 13.8 kW at the crankshaft, 13.3 kW at the shaft and a 3200-3600 RPM full-throttle range. Its power-load diagram uses exponent 3.0; it is not a fuel-use table.",
            "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026."
          }
        ]
      }
    },
    {
      "id": "volvo_md2030",
      "manufacturer": "Volvo Penta",
      "model": "MD2030",
      "aliases": [],
      "variants": [
        "MD2030"
      ],
      "displayName": "Volvo Penta MD2030",
      "ratedPowerHp": 28.4,
      "ratedPowerKw": 20.9,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "extrapolated_from_rated_power",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "MD2030 planning reference uses the published 20.9 kW crankshaft rating and 3600 RPM, the upper endpoint of the manufacturer's 3200-3600 full-throttle range. Generic model evidence does not identify an individual installation's suffix or measured maximum RPM.",
        "Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.45
        },
        {
          "rpm": 1100,
          "lph": 0.45
        },
        {
          "rpm": 1200,
          "lph": 0.45
        },
        {
          "rpm": 1300,
          "lph": 0.45
        },
        {
          "rpm": 1400,
          "lph": 0.45
        },
        {
          "rpm": 1500,
          "lph": 0.512
        },
        {
          "rpm": 1600,
          "lph": 0.621
        },
        {
          "rpm": 1700,
          "lph": 0.745
        },
        {
          "rpm": 1800,
          "lph": 0.884
        },
        {
          "rpm": 1900,
          "lph": 1.04
        },
        {
          "rpm": 2000,
          "lph": 1.213
        },
        {
          "rpm": 2100,
          "lph": 1.404
        },
        {
          "rpm": 2200,
          "lph": 1.615
        },
        {
          "rpm": 2300,
          "lph": 1.845
        },
        {
          "rpm": 2400,
          "lph": 2.096
        },
        {
          "rpm": 2500,
          "lph": 2.369
        },
        {
          "rpm": 2600,
          "lph": 2.665
        },
        {
          "rpm": 2700,
          "lph": 2.984
        },
        {
          "rpm": 2800,
          "lph": 3.328
        },
        {
          "rpm": 2900,
          "lph": 3.698
        },
        {
          "rpm": 3000,
          "lph": 4.094
        },
        {
          "rpm": 3100,
          "lph": 4.517
        },
        {
          "rpm": 3200,
          "lph": 4.968
        },
        {
          "rpm": 3300,
          "lph": 5.449
        },
        {
          "rpm": 3400,
          "lph": 5.959
        },
        {
          "rpm": 3500,
          "lph": 6.501
        },
        {
          "rpm": 3600,
          "lph": 7.074
        }
      ],
      "curveAssumptions": {
        "loadExponent": 3,
        "bsfcGramsPerKwh": 285,
        "dieselDensityKgPerLitre": 0.842,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 7.074228028503564,
        "formula": "max(minimumFuelLph, ratedPowerKw * bsfcGramsPerKwh / 1000 / dieselDensityKgPerLitre * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "volvo_md2030",
        "manufacturer": "Volvo Penta",
        "model": "MD2030",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3600,
        "warning": false,
        "warningNote": "",
        "note": "MD2030 planning reference uses the published 20.9 kW crankshaft rating and 3600 RPM, the upper endpoint of the manufacturer's 3200-3600 full-throttle range. Generic model evidence does not identify an individual installation's suffix or measured maximum RPM. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2030 manufacturer product bulletin, April 2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2030.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2: Technical Data and calculated-load power diagram",
            "evidence": "Manufacturer bulletin gives 20.9 kW crankshaft output, 20.2 kW shaft output and a 3200-3600 RPM full-throttle range. The diagram is calculated load with exponent 3.0, not measured consumption.",
            "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026."
          }
        ]
      }
    },
    {
      "id": "volvo_md2030d",
      "manufacturer": "Volvo Penta",
      "model": "MD2030D",
      "aliases": [],
      "variants": [
        "MD2030D"
      ],
      "displayName": "Volvo Penta MD2030D",
      "ratedPowerHp": 28.4,
      "ratedPowerKw": 20.9,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "extrapolated_from_rated_power",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "D suffix is retained in a separate planning reference. The D-version operator manual refers power to sales literature; the contemporary MD2030 bulletin provides 20.9 kW. 3600 RPM is the published WOT range's upper endpoint, not a measured maximum for the boat. No manufacturer-measured D-version consumption curve was obtained.",
        "Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.45
        },
        {
          "rpm": 1100,
          "lph": 0.45
        },
        {
          "rpm": 1200,
          "lph": 0.45
        },
        {
          "rpm": 1300,
          "lph": 0.45
        },
        {
          "rpm": 1400,
          "lph": 0.45
        },
        {
          "rpm": 1500,
          "lph": 0.512
        },
        {
          "rpm": 1600,
          "lph": 0.621
        },
        {
          "rpm": 1700,
          "lph": 0.745
        },
        {
          "rpm": 1800,
          "lph": 0.884
        },
        {
          "rpm": 1900,
          "lph": 1.04
        },
        {
          "rpm": 2000,
          "lph": 1.213
        },
        {
          "rpm": 2100,
          "lph": 1.404
        },
        {
          "rpm": 2200,
          "lph": 1.615
        },
        {
          "rpm": 2300,
          "lph": 1.845
        },
        {
          "rpm": 2400,
          "lph": 2.096
        },
        {
          "rpm": 2500,
          "lph": 2.369
        },
        {
          "rpm": 2600,
          "lph": 2.665
        },
        {
          "rpm": 2700,
          "lph": 2.984
        },
        {
          "rpm": 2800,
          "lph": 3.328
        },
        {
          "rpm": 2900,
          "lph": 3.698
        },
        {
          "rpm": 3000,
          "lph": 4.094
        },
        {
          "rpm": 3100,
          "lph": 4.517
        },
        {
          "rpm": 3200,
          "lph": 4.968
        },
        {
          "rpm": 3300,
          "lph": 5.449
        },
        {
          "rpm": 3400,
          "lph": 5.959
        },
        {
          "rpm": 3500,
          "lph": 6.501
        },
        {
          "rpm": 3600,
          "lph": 7.074
        }
      ],
      "curveAssumptions": {
        "loadExponent": 3,
        "bsfcGramsPerKwh": 285,
        "dieselDensityKgPerLitre": 0.842,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 7.074228028503564,
        "formula": "max(minimumFuelLph, ratedPowerKw * bsfcGramsPerKwh / 1000 / dieselDensityKgPerLitre * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "volvo_md2030d",
        "manufacturer": "Volvo Penta",
        "model": "MD2030D",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3600,
        "warning": false,
        "warningNote": "",
        "note": "D suffix is retained in a separate planning reference. The D-version operator manual refers power to sales literature; the contemporary MD2030 bulletin provides 20.9 kW. 3600 RPM is the published WOT range's upper endpoint, not a measured maximum for the boat. No manufacturer-measured D-version consumption curve was obtained. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2010/2020/2030/2040 operator manual 7744509",
            "url": "https://sundet.dk/wp-content/uploads/2025/12/Motor-Volvo-Penta-Operators-manual-7744509_EN.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF pages 22 and 55: WOT range and Technical Data",
            "evidence": "Technical Data explicitly lists MD2030-D and 850 +/-25 RPM idle; power is referred to sales literature. The operation section gives the MD2010-2040 range as 3200-3600 RPM. The contemporary product bulletin supplies the power rating; this is not a separate measured D-version fuel curve.",
            "access": "Original manufacturer manual on sailing-club archive, PDF text retrieved; a later image request encountered host verification."
          },
          {
            "title": "Volvo Penta MD2030 manufacturer product bulletin, April 2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2030.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2: Technical Data and calculated-load power diagram",
            "evidence": "Manufacturer bulletin gives 20.9 kW crankshaft output, 20.2 kW shaft output and a 3200-3600 RPM full-throttle range. The diagram is calculated load with exponent 3.0, not measured consumption.",
            "access": "Original manufacturer PDF on dealer archive, web PDF extraction reviewed 17 October 2026."
          }
        ]
      }
    },
    {
      "id": "volvo_d1_20b",
      "manufacturer": "Volvo Penta",
      "model": "D1-20B",
      "aliases": [],
      "variants": [
        "D1-20B"
      ],
      "displayName": "Volvo Penta D1-20B",
      "ratedPowerHp": 18.8,
      "ratedPowerKw": 13.8,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the B suffix or this boat installation.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.5
        },
        {
          "rpm": 1300,
          "lph": 0.6
        },
        {
          "rpm": 1400,
          "lph": 0.7
        },
        {
          "rpm": 1500,
          "lph": 0.8
        },
        {
          "rpm": 1600,
          "lph": 0.9
        },
        {
          "rpm": 1700,
          "lph": 0.95
        },
        {
          "rpm": 1800,
          "lph": 1
        },
        {
          "rpm": 1900,
          "lph": 1.15
        },
        {
          "rpm": 2000,
          "lph": 1.3
        },
        {
          "rpm": 2100,
          "lph": 1.45
        },
        {
          "rpm": 2200,
          "lph": 1.6
        },
        {
          "rpm": 2300,
          "lph": 1.8
        },
        {
          "rpm": 2400,
          "lph": 2
        },
        {
          "rpm": 2500,
          "lph": 2.2
        },
        {
          "rpm": 2600,
          "lph": 2.4
        },
        {
          "rpm": 2700,
          "lph": 2.7
        },
        {
          "rpm": 2800,
          "lph": 3
        },
        {
          "rpm": 2900,
          "lph": 3.35
        },
        {
          "rpm": 3000,
          "lph": 3.7
        },
        {
          "rpm": 3100,
          "lph": 4.15
        },
        {
          "rpm": 3200,
          "lph": 4.6
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_20b",
        "manufacturer": "Volvo Penta",
        "model": "D1-20B",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the B suffix or this boat installation.",
        "sources": [
          {
            "title": "Volvo Penta D1-20 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709035",
            "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D1-20 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709035",
        "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D1-20",
        "sourceCurveId": "D1-20",
        "sourceRatedPowerKw": 13.8,
        "sourceEdition": "English 12-2016",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the B suffix or this boat installation."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d1_30b",
      "manufacturer": "Volvo Penta",
      "model": "D1-30B",
      "aliases": [],
      "variants": [
        "D1-30B"
      ],
      "displayName": "Volvo Penta D1-30B",
      "ratedPowerHp": 28.4,
      "ratedPowerKw": 20.9,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this B variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.8
        },
        {
          "rpm": 1300,
          "lph": 0.95
        },
        {
          "rpm": 1400,
          "lph": 1
        },
        {
          "rpm": 1500,
          "lph": 0.9
        },
        {
          "rpm": 1600,
          "lph": 0.9
        },
        {
          "rpm": 1700,
          "lph": 1.15
        },
        {
          "rpm": 1800,
          "lph": 1.5
        },
        {
          "rpm": 1900,
          "lph": 1.7
        },
        {
          "rpm": 2000,
          "lph": 1.9
        },
        {
          "rpm": 2100,
          "lph": 2.15
        },
        {
          "rpm": 2200,
          "lph": 2.4
        },
        {
          "rpm": 2300,
          "lph": 2.65
        },
        {
          "rpm": 2400,
          "lph": 2.9
        },
        {
          "rpm": 2500,
          "lph": 3.25
        },
        {
          "rpm": 2600,
          "lph": 3.6
        },
        {
          "rpm": 2700,
          "lph": 3.95
        },
        {
          "rpm": 2800,
          "lph": 4.4
        },
        {
          "rpm": 2900,
          "lph": 4.9
        },
        {
          "rpm": 3000,
          "lph": 5.5
        },
        {
          "rpm": 3100,
          "lph": 6.1
        },
        {
          "rpm": 3200,
          "lph": 6.7
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_30b",
        "manufacturer": "Volvo Penta",
        "model": "D1-30B",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this B variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted.",
        "sources": [
          {
            "title": "Volvo Penta D1-30 Product Bulletin",
            "model": "D1-30",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
            "sha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D1-30 Product Bulletin",
        "model": "D1-30",
        "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
        "sha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
        "page": 1,
        "edition": "English 09-2007",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D1-30",
        "sourceCurveId": "volvo-d130-20_9kw",
        "sourceRatedPowerKw": 20.9,
        "sourceEdition": "English 09-2007",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this B variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d1_30f",
      "manufacturer": "Volvo Penta",
      "model": "D1-30F",
      "aliases": [],
      "variants": [
        "D1-30F"
      ],
      "displayName": "Volvo Penta D1-30F",
      "ratedPowerHp": 28.4,
      "ratedPowerKw": 20.9,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this F variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.8
        },
        {
          "rpm": 1300,
          "lph": 0.95
        },
        {
          "rpm": 1400,
          "lph": 1
        },
        {
          "rpm": 1500,
          "lph": 0.9
        },
        {
          "rpm": 1600,
          "lph": 0.9
        },
        {
          "rpm": 1700,
          "lph": 1.15
        },
        {
          "rpm": 1800,
          "lph": 1.5
        },
        {
          "rpm": 1900,
          "lph": 1.7
        },
        {
          "rpm": 2000,
          "lph": 1.9
        },
        {
          "rpm": 2100,
          "lph": 2.15
        },
        {
          "rpm": 2200,
          "lph": 2.4
        },
        {
          "rpm": 2300,
          "lph": 2.65
        },
        {
          "rpm": 2400,
          "lph": 2.9
        },
        {
          "rpm": 2500,
          "lph": 3.25
        },
        {
          "rpm": 2600,
          "lph": 3.6
        },
        {
          "rpm": 2700,
          "lph": 3.95
        },
        {
          "rpm": 2800,
          "lph": 4.4
        },
        {
          "rpm": 2900,
          "lph": 4.9
        },
        {
          "rpm": 3000,
          "lph": 5.5
        },
        {
          "rpm": 3100,
          "lph": 6.1
        },
        {
          "rpm": 3200,
          "lph": 6.7
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d1_30f",
        "manufacturer": "Volvo Penta",
        "model": "D1-30F",
        "manufacturerRatedPowerKw": 20.9,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this F variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted.",
        "sources": [
          {
            "title": "Volvo Penta D1-30 Product Bulletin",
            "model": "D1-30",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
            "sha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D1-30 Product Bulletin",
        "model": "D1-30",
        "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
        "sha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
        "page": 1,
        "edition": "English 09-2007",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D1-30",
        "sourceCurveId": "volvo-d130-20_9kw",
        "sourceRatedPowerKw": 20.9,
        "sourceEdition": "English 09-2007",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the English 09-2007 D1-30 manufacturer fuel graph at the documented 20.9 kW / 3200 RPM rating for this F variant. Kept separate from the later 20.0 kW leaflet; no exact suffix-calibration equivalence is asserted."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "b900e896e84f6de3ba6c092aacde2d1d2c4fc9d6de07ec3c83b9fb30f31e2e70",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d2_40b",
      "manufacturer": "Volvo Penta",
      "model": "D2-40B",
      "aliases": [],
      "variants": [
        "D2-40B"
      ],
      "displayName": "Volvo Penta D2-40B",
      "ratedPowerHp": 39.6,
      "ratedPowerKw": 29.1,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented B variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.9
        },
        {
          "rpm": 1300,
          "lph": 0.95
        },
        {
          "rpm": 1400,
          "lph": 1.1
        },
        {
          "rpm": 1500,
          "lph": 1.3
        },
        {
          "rpm": 1600,
          "lph": 1.5
        },
        {
          "rpm": 1700,
          "lph": 1.7
        },
        {
          "rpm": 1800,
          "lph": 1.9
        },
        {
          "rpm": 1900,
          "lph": 2.1
        },
        {
          "rpm": 2000,
          "lph": 2.4
        },
        {
          "rpm": 2100,
          "lph": 2.75
        },
        {
          "rpm": 2200,
          "lph": 3.1
        },
        {
          "rpm": 2300,
          "lph": 3.45
        },
        {
          "rpm": 2400,
          "lph": 3.8
        },
        {
          "rpm": 2500,
          "lph": 4.25
        },
        {
          "rpm": 2600,
          "lph": 4.8
        },
        {
          "rpm": 2700,
          "lph": 5.4
        },
        {
          "rpm": 2800,
          "lph": 6
        },
        {
          "rpm": 2900,
          "lph": 6.7
        },
        {
          "rpm": 3000,
          "lph": 7.5
        },
        {
          "rpm": 3100,
          "lph": 8.45
        },
        {
          "rpm": 3200,
          "lph": 9.5
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_40b",
        "manufacturer": "Volvo Penta",
        "model": "D2-40B",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented B variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test.",
        "sources": [
          {
            "title": "Volvo Penta D2-40 Product Bulletin",
            "model": "D2-40",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
            "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-40 Product Bulletin",
        "model": "D2-40",
        "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
        "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
        "page": 1,
        "edition": "English 09-2007",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-40",
        "sourceCurveId": "volvo-d240-29_1kw",
        "sourceRatedPowerKw": 29.1,
        "sourceEdition": "English 09-2007",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented B variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
        "sourcePage": 1
      }
    },
    {
      "id": "volvo_d2_75b",
      "manufacturer": "Volvo Penta",
      "model": "D2-75B",
      "aliases": [],
      "variants": [
        "D2-75B"
      ],
      "displayName": "Volvo Penta D2-75B",
      "ratedPowerHp": 74.8,
      "ratedPowerKw": 55,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the D2-75 base-engine manufacturer graph at the same documented 55 kW / 3000 RPM rating. The graph does not individually certify the older B suffix or this boat installation.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 1
        },
        {
          "rpm": 1300,
          "lph": 1.6
        },
        {
          "rpm": 1400,
          "lph": 2.1
        },
        {
          "rpm": 1500,
          "lph": 2.4
        },
        {
          "rpm": 1600,
          "lph": 2.7
        },
        {
          "rpm": 1700,
          "lph": 3.15
        },
        {
          "rpm": 1800,
          "lph": 3.7
        },
        {
          "rpm": 1900,
          "lph": 4.2
        },
        {
          "rpm": 2000,
          "lph": 4.8
        },
        {
          "rpm": 2100,
          "lph": 5.65
        },
        {
          "rpm": 2200,
          "lph": 6.5
        },
        {
          "rpm": 2300,
          "lph": 7.2
        },
        {
          "rpm": 2400,
          "lph": 8
        },
        {
          "rpm": 2500,
          "lph": 9.2
        },
        {
          "rpm": 2600,
          "lph": 10.6
        },
        {
          "rpm": 2700,
          "lph": 11.9
        },
        {
          "rpm": 2800,
          "lph": 13.5
        },
        {
          "rpm": 2900,
          "lph": 15.65
        },
        {
          "rpm": 3000,
          "lph": 18.2
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d2_75b",
        "manufacturer": "Volvo Penta",
        "model": "D2-75B",
        "manufacturerRatedPowerKw": 55,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-75 base-engine manufacturer graph at the same documented 55 kW / 3000 RPM rating. The graph does not individually certify the older B suffix or this boat installation.",
        "sources": [
          {
            "title": "Volvo Penta D2-75 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709063",
            "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-75 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709063",
        "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-75",
        "sourceCurveId": "D2-75",
        "sourceRatedPowerKw": 55,
        "sourceEdition": "English 11-2022",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the D2-75 base-engine manufacturer graph at the same documented 55 kW / 3000 RPM rating. The graph does not individually certify the older B suffix or this boat installation."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
        "sourcePage": 1
      }
    },
    {
      "id": "yanmar_4jh4_hte",
      "manufacturer": "Yanmar",
      "model": "4JH4-HTE",
      "aliases": [],
      "variants": [
        "4JH4-HTE"
      ],
      "displayName": "Yanmar 4JH4-HTE",
      "ratedPowerHp": 110,
      "ratedPowerKw": 80.9,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 4JH4-HTE manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 1.2
        },
        {
          "rpm": 1300,
          "lph": 1.5
        },
        {
          "rpm": 1400,
          "lph": 1.8
        },
        {
          "rpm": 1500,
          "lph": 2.2
        },
        {
          "rpm": 1600,
          "lph": 2.6
        },
        {
          "rpm": 1700,
          "lph": 3.1
        },
        {
          "rpm": 1800,
          "lph": 3.7
        },
        {
          "rpm": 1900,
          "lph": 4.4
        },
        {
          "rpm": 2000,
          "lph": 5.1
        },
        {
          "rpm": 2100,
          "lph": 5.8
        },
        {
          "rpm": 2200,
          "lph": 6.6
        },
        {
          "rpm": 2300,
          "lph": 7.6
        },
        {
          "rpm": 2400,
          "lph": 8.7
        },
        {
          "rpm": 2500,
          "lph": 9.8
        },
        {
          "rpm": 2600,
          "lph": 10.9
        },
        {
          "rpm": 2700,
          "lph": 12.1
        },
        {
          "rpm": 2800,
          "lph": 13.6
        },
        {
          "rpm": 2900,
          "lph": 15.3
        },
        {
          "rpm": 3000,
          "lph": 17
        },
        {
          "rpm": 3100,
          "lph": 18.9
        },
        {
          "rpm": 3200,
          "lph": 20.8
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_4jh4_hte",
        "manufacturer": "Yanmar",
        "model": "4JH4-HTE",
        "manufacturerRatedPowerKw": 80.9,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH4-HTE manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet.",
        "sources": [
          {
            "title": "Yanmar 4JH4-HTE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf",
            "sha256": "cd06ba6f6e74f863c216282ce062d574ea5343fceef4d8d03c399ced291bfc5a",
            "page": 2,
            "edition": "DS_4JH4-HTE_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 4JH4-HTE Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf",
        "sha256": "cd06ba6f6e74f863c216282ce062d574ea5343fceef4d8d03c399ced291bfc5a",
        "page": 2,
        "edition": "DS_4JH4-HTE_A4_052022",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH4-HTE",
        "sourceCurveId": "4JH4-HTE",
        "sourceRatedPowerKw": 80.9,
        "sourceEdition": "DS_4JH4-HTE_A4_052022",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4JH4-HTE manufacturer fuel graph, 80.9 kW / 3200 RPM, May 2022 datasheet."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "cd06ba6f6e74f863c216282ce062d574ea5343fceef4d8d03c399ced291bfc5a",
        "sourcePage": 2
      }
    },
    {
      "id": "yanmar_3ym30ae",
      "manufacturer": "Yanmar",
      "model": "3YM30AE",
      "aliases": [],
      "variants": [
        "3YM30AE"
      ],
      "displayName": "Yanmar 3YM30AE",
      "ratedPowerHp": 29,
      "ratedPowerKw": 21.3,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 3YM30AE manufacturer fuel graph, 21.3 kW / 3200 RPM. Not the older 3600 RPM 3YM30.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1400,
          "lph": 1
        },
        {
          "rpm": 1500,
          "lph": 1.1
        },
        {
          "rpm": 1600,
          "lph": 1.2
        },
        {
          "rpm": 1700,
          "lph": 1.4
        },
        {
          "rpm": 1800,
          "lph": 1.6
        },
        {
          "rpm": 1900,
          "lph": 1.8
        },
        {
          "rpm": 2000,
          "lph": 2
        },
        {
          "rpm": 2100,
          "lph": 2.2
        },
        {
          "rpm": 2200,
          "lph": 2.4
        },
        {
          "rpm": 2300,
          "lph": 2.65
        },
        {
          "rpm": 2400,
          "lph": 3
        },
        {
          "rpm": 2500,
          "lph": 3.35
        },
        {
          "rpm": 2600,
          "lph": 3.8
        },
        {
          "rpm": 2700,
          "lph": 4.25
        },
        {
          "rpm": 2800,
          "lph": 4.8
        },
        {
          "rpm": 2900,
          "lph": 5.4
        },
        {
          "rpm": 3000,
          "lph": 6.1
        },
        {
          "rpm": 3100,
          "lph": 6.8
        },
        {
          "rpm": 3200,
          "lph": 7.7
        }
      ],
      "ratingReview": {
        "referenceId": "yanmar_3ym30ae",
        "manufacturer": "Yanmar",
        "model": "3YM30AE",
        "manufacturerRatedPowerKw": 21.3,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 3YM30AE manufacturer fuel graph, 21.3 kW / 3200 RPM. Not the older 3600 RPM 3YM30.",
        "sources": [
          {
            "title": "Yanmar 3YM30AE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf",
            "sha256": "15d3b164a1d70062695c4c7b77c69402046ae8fc004cd655b87391e4635b4c2a",
            "page": 2,
            "edition": "DS_3YM30AE_A4_082022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 3YM30AE Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf",
        "sha256": "15d3b164a1d70062695c4c7b77c69402046ae8fc004cd655b87391e4635b4c2a",
        "page": 2,
        "edition": "DS_3YM30AE_A4_082022",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "3YM30AE",
        "sourceCurveId": "3YM30AE",
        "sourceRatedPowerKw": 21.3,
        "sourceEdition": "DS_3YM30AE_A4_082022",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 3YM30AE manufacturer fuel graph, 21.3 kW / 3200 RPM. Not the older 3600 RPM 3YM30."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "15d3b164a1d70062695c4c7b77c69402046ae8fc004cd655b87391e4635b4c2a",
        "sourcePage": 2
      }
    },
    {
      "id": "volvo_d3_110",
      "manufacturer": "Volvo Penta",
      "model": "D3-110",
      "aliases": [],
      "variants": [
        "D3-110"
      ],
      "displayName": "Volvo Penta D3-110",
      "ratedPowerHp": 110.1,
      "ratedPowerKw": 81,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 81 kW / 3000 RPM D3-110 I graph from the 12-2016 leaflet for this abbreviated base reference. It does not establish a particular hardware suffix. The separately identified D3-110 I reference retains its older published numeric table; editions are not blended.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 4
        },
        {
          "rpm": 1600,
          "lph": 4.7
        },
        {
          "rpm": 1700,
          "lph": 5.4
        },
        {
          "rpm": 1750,
          "lph": 5.8
        },
        {
          "rpm": 1800,
          "lph": 6.2
        },
        {
          "rpm": 1900,
          "lph": 7.1
        },
        {
          "rpm": 2000,
          "lph": 7.9
        },
        {
          "rpm": 2100,
          "lph": 8.9
        },
        {
          "rpm": 2200,
          "lph": 10
        },
        {
          "rpm": 2250,
          "lph": 10.5
        },
        {
          "rpm": 2300,
          "lph": 11.1
        },
        {
          "rpm": 2400,
          "lph": 12.5
        },
        {
          "rpm": 2500,
          "lph": 13.6
        },
        {
          "rpm": 2600,
          "lph": 14.8
        },
        {
          "rpm": 2700,
          "lph": 16.5
        },
        {
          "rpm": 2750,
          "lph": 17.2
        },
        {
          "rpm": 2800,
          "lph": 17.9
        },
        {
          "rpm": 2900,
          "lph": 19.4
        },
        {
          "rpm": 3000,
          "lph": 21.2
        }
      ],
      "ratingReview": {
        "referenceId": "volvo_d3_110",
        "manufacturer": "Volvo Penta",
        "model": "D3-110",
        "manufacturerRatedPowerKw": 81,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 81 kW / 3000 RPM D3-110 I graph from the 12-2016 leaflet for this abbreviated base reference. It does not establish a particular hardware suffix. The separately identified D3-110 I reference retains its older published numeric table; editions are not blended.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
            "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
            "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
        "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
        "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D3-110 I",
        "sourceCurveId": "D3-110 I",
        "sourceRatedPowerKw": 81,
        "sourceEdition": "English 12-2016",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 81 kW / 3000 RPM D3-110 I graph from the 12-2016 leaflet for this abbreviated base reference. It does not establish a particular hardware suffix. The separately identified D3-110 I reference retains its older published numeric table; editions are not blended."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "PDF vector centerline extraction; calibrated RPM/Lh ticks; linear interpolation of source polyline",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d120f",
      "manufacturer": "Volvo Penta",
      "model": "D1-20F",
      "aliases": [],
      "variants": [
        "D1-20F"
      ],
      "displayName": "Volvo Penta D1-20F",
      "ratedPowerHp": 18.8,
      "ratedPowerKw": 13.8,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the F suffix or this boat installation.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.5
        },
        {
          "rpm": 1300,
          "lph": 0.6
        },
        {
          "rpm": 1400,
          "lph": 0.7
        },
        {
          "rpm": 1500,
          "lph": 0.8
        },
        {
          "rpm": 1600,
          "lph": 0.9
        },
        {
          "rpm": 1700,
          "lph": 0.95
        },
        {
          "rpm": 1800,
          "lph": 1
        },
        {
          "rpm": 1900,
          "lph": 1.15
        },
        {
          "rpm": 2000,
          "lph": 1.3
        },
        {
          "rpm": 2100,
          "lph": 1.45
        },
        {
          "rpm": 2200,
          "lph": 1.6
        },
        {
          "rpm": 2300,
          "lph": 1.8
        },
        {
          "rpm": 2400,
          "lph": 2
        },
        {
          "rpm": 2500,
          "lph": 2.2
        },
        {
          "rpm": 2600,
          "lph": 2.4
        },
        {
          "rpm": 2700,
          "lph": 2.7
        },
        {
          "rpm": 2800,
          "lph": 3
        },
        {
          "rpm": 2900,
          "lph": 3.35
        },
        {
          "rpm": 3000,
          "lph": 3.7
        },
        {
          "rpm": 3100,
          "lph": 4.15
        },
        {
          "rpm": 3200,
          "lph": 4.6
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d120f",
        "manufacturer": "Volvo Penta",
        "model": "D1-20F",
        "manufacturerRatedPowerKw": 13.8,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the F suffix or this boat installation.",
        "sources": [
          {
            "title": "Volvo Penta D1-20 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709035",
            "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D1-20 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709035",
        "sha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D1-20",
        "sourceCurveId": "D1-20",
        "sourceRatedPowerKw": 13.8,
        "sourceEdition": "English 12-2016",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the D1-20 base-engine manufacturer graph at the same documented 13.8 kW / 3200 RPM rating. The graph does not individually certify the F suffix or this boat installation."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "1f32acf8a7ea3113508c2dc0923fad9159323e031a27cd5dbe27c80670ec6b59",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d240f",
      "manufacturer": "Volvo Penta",
      "model": "D2-40F",
      "aliases": [],
      "variants": [
        "D2-40F"
      ],
      "displayName": "Volvo Penta D2-40F",
      "ratedPowerHp": 39.6,
      "ratedPowerKw": 29.1,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented F variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.9
        },
        {
          "rpm": 1300,
          "lph": 0.95
        },
        {
          "rpm": 1400,
          "lph": 1.1
        },
        {
          "rpm": 1500,
          "lph": 1.3
        },
        {
          "rpm": 1600,
          "lph": 1.5
        },
        {
          "rpm": 1700,
          "lph": 1.7
        },
        {
          "rpm": 1800,
          "lph": 1.9
        },
        {
          "rpm": 1900,
          "lph": 2.1
        },
        {
          "rpm": 2000,
          "lph": 2.4
        },
        {
          "rpm": 2100,
          "lph": 2.75
        },
        {
          "rpm": 2200,
          "lph": 3.1
        },
        {
          "rpm": 2300,
          "lph": 3.45
        },
        {
          "rpm": 2400,
          "lph": 3.8
        },
        {
          "rpm": 2500,
          "lph": 4.25
        },
        {
          "rpm": 2600,
          "lph": 4.8
        },
        {
          "rpm": 2700,
          "lph": 5.4
        },
        {
          "rpm": 2800,
          "lph": 6
        },
        {
          "rpm": 2900,
          "lph": 6.7
        },
        {
          "rpm": 3000,
          "lph": 7.5
        },
        {
          "rpm": 3100,
          "lph": 8.45
        },
        {
          "rpm": 3200,
          "lph": 9.5
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d240f",
        "manufacturer": "Volvo Penta",
        "model": "D2-40F",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented F variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test.",
        "sources": [
          {
            "title": "Volvo Penta D2-40 Product Bulletin",
            "model": "D2-40",
            "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
            "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
            "page": 1,
            "edition": "English 09-2007",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-40 Product Bulletin",
        "model": "D2-40",
        "url": "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf",
        "sha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
        "page": 1,
        "edition": "English 09-2007",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-40",
        "sourceCurveId": "volvo-d240-29_1kw",
        "sourceRatedPowerKw": 29.1,
        "sourceEdition": "English 09-2007",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the historical 29.1 kW / 3200 RPM D2-40 manufacturer graph for the separately documented F variant. This is a reviewed representative base-engine reference, not an independently certified suffix calibration or boat test."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "750863ac096310bc7834a0570c4538ab9fef4d1e41cd5c9f24ff06ae7b4ce216",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d250f",
      "manufacturer": "Volvo Penta",
      "model": "D2-50F",
      "aliases": [],
      "variants": [
        "D2-50F"
      ],
      "displayName": "Volvo Penta D2-50F",
      "ratedPowerHp": 51,
      "ratedPowerKw": 37.5,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the D2-50 base-engine manufacturer graph at the same 37.5 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 1.6
        },
        {
          "rpm": 1700,
          "lph": 1.9
        },
        {
          "rpm": 1800,
          "lph": 2.3
        },
        {
          "rpm": 1900,
          "lph": 2.7
        },
        {
          "rpm": 2000,
          "lph": 3.2
        },
        {
          "rpm": 2100,
          "lph": 3.7
        },
        {
          "rpm": 2200,
          "lph": 4.3
        },
        {
          "rpm": 2300,
          "lph": 4.9
        },
        {
          "rpm": 2400,
          "lph": 5.6
        },
        {
          "rpm": 2500,
          "lph": 6.35
        },
        {
          "rpm": 2600,
          "lph": 7.2
        },
        {
          "rpm": 2700,
          "lph": 8.15
        },
        {
          "rpm": 2800,
          "lph": 9.2
        },
        {
          "rpm": 2900,
          "lph": 10.35
        },
        {
          "rpm": 3000,
          "lph": 11.5
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d250f",
        "manufacturer": "Volvo Penta",
        "model": "D2-50F",
        "manufacturerRatedPowerKw": 37.5,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-50 base-engine manufacturer graph at the same 37.5 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "sources": [
          {
            "title": "Volvo Penta D2-50 product specification",
            "url": "https://pubs.volvopenta.com/publications/47710130",
            "sha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-50 product specification",
        "url": "https://pubs.volvopenta.com/publications/47710130",
        "sha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-50",
        "sourceCurveId": "D2-50",
        "sourceRatedPowerKw": 37.5,
        "sourceEdition": "English 11-2022",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the D2-50 base-engine manufacturer graph at the same 37.5 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "native_raster_trace",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "3c7ee88dae454902daed8fec7cfc0aa4ac115ac2dc21e596737b3e174a841758",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d255f",
      "manufacturer": "Volvo Penta",
      "model": "D2-55F",
      "aliases": [],
      "variants": [
        "D2-55F"
      ],
      "displayName": "Volvo Penta D2-55F",
      "ratedPowerHp": 55,
      "ratedPowerKw": 41,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented F variant under the reviewed base-engine policy. Not an independently certified F-suffix or installed-boat fuel test.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 2.2
        },
        {
          "rpm": 1600,
          "lph": 2.45
        },
        {
          "rpm": 1700,
          "lph": 2.75
        },
        {
          "rpm": 1800,
          "lph": 3.1
        },
        {
          "rpm": 1900,
          "lph": 3.4
        },
        {
          "rpm": 2000,
          "lph": 3.85
        },
        {
          "rpm": 2100,
          "lph": 4.4
        },
        {
          "rpm": 2200,
          "lph": 5.05
        },
        {
          "rpm": 2300,
          "lph": 5.75
        },
        {
          "rpm": 2400,
          "lph": 6.5
        },
        {
          "rpm": 2500,
          "lph": 7.2
        },
        {
          "rpm": 2600,
          "lph": 7.95
        },
        {
          "rpm": 2700,
          "lph": 8.9
        },
        {
          "rpm": 2800,
          "lph": 10.05
        },
        {
          "rpm": 2900,
          "lph": 11.35
        },
        {
          "rpm": 3000,
          "lph": 12.75
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d255f",
        "manufacturer": "Volvo Penta",
        "model": "D2-55F",
        "manufacturerRatedPowerKw": 41,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented F variant under the reviewed base-engine policy. Not an independently certified F-suffix or installed-boat fuel test.",
        "sources": [
          {
            "title": "Volvo Penta D2-55 product specification, English 07-2013",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
            "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
            "page": 1,
            "edition": "English 07-2013",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-55 product specification, English 07-2013",
        "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
        "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
        "page": 1,
        "edition": "English 07-2013",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-55",
        "sourceCurveId": "D2-55",
        "sourceRatedPowerKw": 41,
        "sourceEdition": "English 07-2013",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented F variant under the reviewed base-engine policy. Not an independently certified F-suffix or installed-boat fuel test."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated original PDF vector trace 2 (calculated propeller load); short internal dash-gap interpolation",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d255c",
      "manufacturer": "Volvo Penta",
      "model": "D2-55C",
      "aliases": [],
      "variants": [
        "D2-55C"
      ],
      "displayName": "Volvo Penta D2-55C",
      "ratedPowerHp": 55,
      "ratedPowerKw": 41,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented C variant under the reviewed base-engine policy. Not an independently certified C-suffix or installed-boat fuel test.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 2.2
        },
        {
          "rpm": 1600,
          "lph": 2.45
        },
        {
          "rpm": 1700,
          "lph": 2.75
        },
        {
          "rpm": 1800,
          "lph": 3.1
        },
        {
          "rpm": 1900,
          "lph": 3.4
        },
        {
          "rpm": 2000,
          "lph": 3.85
        },
        {
          "rpm": 2100,
          "lph": 4.4
        },
        {
          "rpm": 2200,
          "lph": 5.05
        },
        {
          "rpm": 2300,
          "lph": 5.75
        },
        {
          "rpm": 2400,
          "lph": 6.5
        },
        {
          "rpm": 2500,
          "lph": 7.2
        },
        {
          "rpm": 2600,
          "lph": 7.95
        },
        {
          "rpm": 2700,
          "lph": 8.9
        },
        {
          "rpm": 2800,
          "lph": 10.05
        },
        {
          "rpm": 2900,
          "lph": 11.35
        },
        {
          "rpm": 3000,
          "lph": 12.75
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d255c",
        "manufacturer": "Volvo Penta",
        "model": "D2-55C",
        "manufacturerRatedPowerKw": 41,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented C variant under the reviewed base-engine policy. Not an independently certified C-suffix or installed-boat fuel test.",
        "sources": [
          {
            "title": "Volvo Penta D2-55 product specification, English 07-2013",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
            "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
            "page": 1,
            "edition": "English 07-2013",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-55 product specification, English 07-2013",
        "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d2-55-d2-55.pdf",
        "sha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
        "page": 1,
        "edition": "English 07-2013",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-55",
        "sourceCurveId": "D2-55",
        "sourceRatedPowerKw": 41,
        "sourceEdition": "English 07-2013",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 41 kW / 3000 RPM D2-55 manufacturer fuel graph for the separately documented C variant under the reviewed base-engine policy. Not an independently certified C-suffix or installed-boat fuel test."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated original PDF vector trace 2 (calculated propeller load); short internal dash-gap interpolation",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "47408550b9f986c4aacf60570a3eaee78579095a723b3db38a3abcfbf7abf34c",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d260f",
      "manufacturer": "Volvo Penta",
      "model": "D2-60F",
      "aliases": [],
      "variants": [
        "D2-60F"
      ],
      "displayName": "Volvo Penta D2-60F",
      "ratedPowerHp": 59.8,
      "ratedPowerKw": 44,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the D2-60 base-engine manufacturer graph at the same 44 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.8
        },
        {
          "rpm": 1300,
          "lph": 0.7
        },
        {
          "rpm": 1400,
          "lph": 0.7
        },
        {
          "rpm": 1500,
          "lph": 0.8
        },
        {
          "rpm": 1600,
          "lph": 1.1
        },
        {
          "rpm": 1700,
          "lph": 1.6
        },
        {
          "rpm": 1800,
          "lph": 2.25
        },
        {
          "rpm": 1900,
          "lph": 3
        },
        {
          "rpm": 2000,
          "lph": 3.8
        },
        {
          "rpm": 2100,
          "lph": 4.55
        },
        {
          "rpm": 2200,
          "lph": 5.25
        },
        {
          "rpm": 2300,
          "lph": 6.05
        },
        {
          "rpm": 2400,
          "lph": 7
        },
        {
          "rpm": 2500,
          "lph": 8.1
        },
        {
          "rpm": 2600,
          "lph": 9.3
        },
        {
          "rpm": 2700,
          "lph": 10.65
        },
        {
          "rpm": 2800,
          "lph": 12.1
        },
        {
          "rpm": 2900,
          "lph": 13.6
        },
        {
          "rpm": 3000,
          "lph": 15.1
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d260f",
        "manufacturer": "Volvo Penta",
        "model": "D2-60F",
        "manufacturerRatedPowerKw": 44,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-60 base-engine manufacturer graph at the same 44 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "sources": [
          {
            "title": "Volvo Penta D2-60 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709927",
            "sha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-60 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709927",
        "sha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-60",
        "sourceCurveId": "D2-60",
        "sourceRatedPowerKw": 44,
        "sourceEdition": "English 11-2022",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the D2-60 base-engine manufacturer graph at the same 44 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "native_raster_trace",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "9d757fd49a1461eeee320fa72d648bcd5b8af5cf2beefc1e1900c13a5266c4c0",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d275f",
      "manufacturer": "Volvo Penta",
      "model": "D2-75F",
      "aliases": [],
      "variants": [
        "D2-75F"
      ],
      "displayName": "Volvo Penta D2-75F",
      "ratedPowerHp": 74.8,
      "ratedPowerKw": 55,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the D2-75 base-engine manufacturer graph at the same 55 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 1
        },
        {
          "rpm": 1300,
          "lph": 1.6
        },
        {
          "rpm": 1400,
          "lph": 2.1
        },
        {
          "rpm": 1500,
          "lph": 2.4
        },
        {
          "rpm": 1600,
          "lph": 2.7
        },
        {
          "rpm": 1700,
          "lph": 3.15
        },
        {
          "rpm": 1800,
          "lph": 3.7
        },
        {
          "rpm": 1900,
          "lph": 4.2
        },
        {
          "rpm": 2000,
          "lph": 4.8
        },
        {
          "rpm": 2100,
          "lph": 5.65
        },
        {
          "rpm": 2200,
          "lph": 6.5
        },
        {
          "rpm": 2300,
          "lph": 7.2
        },
        {
          "rpm": 2400,
          "lph": 8
        },
        {
          "rpm": 2500,
          "lph": 9.2
        },
        {
          "rpm": 2600,
          "lph": 10.6
        },
        {
          "rpm": 2700,
          "lph": 11.9
        },
        {
          "rpm": 2800,
          "lph": 13.5
        },
        {
          "rpm": 2900,
          "lph": 15.65
        },
        {
          "rpm": 3000,
          "lph": 18.2
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d275f",
        "manufacturer": "Volvo Penta",
        "model": "D2-75F",
        "manufacturerRatedPowerKw": 55,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the D2-75 base-engine manufacturer graph at the same 55 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement.",
        "sources": [
          {
            "title": "Volvo Penta D2-75 product specification",
            "url": "https://pubs.volvopenta.com/publications/47709063",
            "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
            "page": 1,
            "edition": "English 11-2022",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta D2-75 product specification",
        "url": "https://pubs.volvopenta.com/publications/47709063",
        "sha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
        "page": 1,
        "edition": "English 11-2022",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D2-75",
        "sourceCurveId": "D2-75",
        "sourceRatedPowerKw": 55,
        "sourceEdition": "English 11-2022",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the D2-75 base-engine manufacturer graph at the same 55 kW / 3000 RPM rating, consistent with the F engine in the current range. Not a boat-specific measurement."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "pdf_vector_path",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "8cf884ae9fb976f8183559de8a151de5aa65df23ba0fa8efcbd766ec3ce136a0",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_md2040",
      "manufacturer": "Volvo Penta",
      "model": "MD2040",
      "aliases": [],
      "variants": [
        "MD2040"
      ],
      "displayName": "Volvo Penta MD2040",
      "ratedPowerHp": 39.6,
      "ratedPowerKw": 29.1,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "extrapolated_from_rated_power",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Published generic MD2040 crankshaft rating; normalize at the upper 3600-RPM endpoint of 3200-3600. Generic label does not establish installed hardware suffix, actual maximum RPM or measured boat fuel use.",
        "Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.45
        },
        {
          "rpm": 1100,
          "lph": 0.45
        },
        {
          "rpm": 1200,
          "lph": 0.45
        },
        {
          "rpm": 1300,
          "lph": 0.464
        },
        {
          "rpm": 1400,
          "lph": 0.579
        },
        {
          "rpm": 1500,
          "lph": 0.713
        },
        {
          "rpm": 1600,
          "lph": 0.865
        },
        {
          "rpm": 1700,
          "lph": 1.037
        },
        {
          "rpm": 1800,
          "lph": 1.231
        },
        {
          "rpm": 1900,
          "lph": 1.448
        },
        {
          "rpm": 2000,
          "lph": 1.689
        },
        {
          "rpm": 2100,
          "lph": 1.955
        },
        {
          "rpm": 2200,
          "lph": 2.248
        },
        {
          "rpm": 2300,
          "lph": 2.569
        },
        {
          "rpm": 2400,
          "lph": 2.918
        },
        {
          "rpm": 2500,
          "lph": 3.299
        },
        {
          "rpm": 2600,
          "lph": 3.711
        },
        {
          "rpm": 2700,
          "lph": 4.155
        },
        {
          "rpm": 2800,
          "lph": 4.634
        },
        {
          "rpm": 2900,
          "lph": 5.149
        },
        {
          "rpm": 3000,
          "lph": 5.7
        },
        {
          "rpm": 3100,
          "lph": 6.289
        },
        {
          "rpm": 3200,
          "lph": 6.918
        },
        {
          "rpm": 3300,
          "lph": 7.587
        },
        {
          "rpm": 3400,
          "lph": 8.298
        },
        {
          "rpm": 3500,
          "lph": 9.052
        },
        {
          "rpm": 3600,
          "lph": 9.85
        }
      ],
      "curveAssumptions": {
        "loadExponent": 3,
        "bsfcGramsPerKwh": 285,
        "dieselDensityKgPerLitre": 0.842,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 9.84976247030879,
        "formula": "max(minimumFuelLph, ratedPowerKw * bsfcGramsPerKwh / 1000 / dieselDensityKgPerLitre * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "review_volvopenta_md2040",
        "manufacturer": "Volvo Penta",
        "model": "MD2040",
        "manufacturerRatedPowerKw": 29.1,
        "manufacturerRatedRpm": 3600,
        "warning": true,
        "warningNote": "Rating assumption: Published generic MD2040 crankshaft rating; normalize at the upper 3600-RPM endpoint of 3200-3600. Generic label does not establish installed hardware suffix, actual maximum RPM or measured boat fuel use.",
        "note": "Published generic MD2040 crankshaft rating; normalize at the upper 3600-RPM endpoint of 3200-3600. Generic label does not establish installed hardware suffix, actual maximum RPM or measured boat fuel use. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volvo Penta MD2040 product bulletin, 04-2004",
            "url": "https://legacy.marinepartsexpress.com/prodbull05/md2040.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2, Technical Data: crankshaft output / full-throttle operating speed.",
            "evidence": "MD2040: 29.1 kW crankshaft, 28.3 kW shaft, 3200-3600 RPM full-throttle range. Power-load diagram is not a numeric fuel table.",
            "access": "Original manufacturer bulletin on Marine Parts Express dealer archive; web PDF extraction reviewed."
          }
        ]
      }
    },
    {
      "id": "review_volvopenta_d3150",
      "manufacturer": "Volvo Penta",
      "model": "D3-150",
      "aliases": [],
      "variants": [
        "D3-150"
      ],
      "displayName": "Volvo Penta D3-150",
      "ratedPowerHp": 149.6,
      "ratedPowerKw": 110,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 110 kW / 3000 RPM D3-150 I manufacturer graph for the abbreviated D3-150 base label. No individual G/H suffix or installed-boat certification is implied.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 5.4
        },
        {
          "rpm": 1600,
          "lph": 6.2
        },
        {
          "rpm": 1700,
          "lph": 7.2
        },
        {
          "rpm": 1750,
          "lph": 7.7
        },
        {
          "rpm": 1800,
          "lph": 8.3
        },
        {
          "rpm": 1900,
          "lph": 9.3
        },
        {
          "rpm": 2000,
          "lph": 10.6
        },
        {
          "rpm": 2100,
          "lph": 11.9
        },
        {
          "rpm": 2200,
          "lph": 13.1
        },
        {
          "rpm": 2250,
          "lph": 13.9
        },
        {
          "rpm": 2300,
          "lph": 14.6
        },
        {
          "rpm": 2400,
          "lph": 16.6
        },
        {
          "rpm": 2500,
          "lph": 18
        },
        {
          "rpm": 2600,
          "lph": 19.7
        },
        {
          "rpm": 2700,
          "lph": 22
        },
        {
          "rpm": 2750,
          "lph": 22.9
        },
        {
          "rpm": 2800,
          "lph": 23.8
        },
        {
          "rpm": 2900,
          "lph": 26
        },
        {
          "rpm": 3000,
          "lph": 29
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d3150",
        "manufacturer": "Volvo Penta",
        "model": "D3-150",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 110 kW / 3000 RPM D3-150 I manufacturer graph for the abbreviated D3-150 base label. No individual G/H suffix or installed-boat certification is implied.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
            "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
            "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
        "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
        "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D3-150 I",
        "sourceCurveId": "D3-150 I",
        "sourceRatedPowerKw": 110,
        "sourceEdition": "English 12-2016",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 110 kW / 3000 RPM D3-150 I manufacturer graph for the abbreviated D3-150 base label. No individual G/H suffix or installed-boat certification is implied."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "PDF vector centerline extraction; calibrated RPM/Lh ticks; linear interpolation along observed dash segments and short internal dash gaps",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d3150i",
      "manufacturer": "Volvo Penta",
      "model": "D3-150i",
      "aliases": [],
      "variants": [
        "D3-150i"
      ],
      "displayName": "Volvo Penta D3-150i",
      "ratedPowerHp": 149.6,
      "ratedPowerKw": 110,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "D3-150 I manufacturer graph, English 12-2016, 110 kW / 3000 RPM. No individual G/H hardware suffix or installed-boat certification is implied.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 5.4
        },
        {
          "rpm": 1600,
          "lph": 6.2
        },
        {
          "rpm": 1700,
          "lph": 7.2
        },
        {
          "rpm": 1750,
          "lph": 7.7
        },
        {
          "rpm": 1800,
          "lph": 8.3
        },
        {
          "rpm": 1900,
          "lph": 9.3
        },
        {
          "rpm": 2000,
          "lph": 10.6
        },
        {
          "rpm": 2100,
          "lph": 11.9
        },
        {
          "rpm": 2200,
          "lph": 13.1
        },
        {
          "rpm": 2250,
          "lph": 13.9
        },
        {
          "rpm": 2300,
          "lph": 14.6
        },
        {
          "rpm": 2400,
          "lph": 16.6
        },
        {
          "rpm": 2500,
          "lph": 18
        },
        {
          "rpm": 2600,
          "lph": 19.7
        },
        {
          "rpm": 2700,
          "lph": 22
        },
        {
          "rpm": 2750,
          "lph": 22.9
        },
        {
          "rpm": 2800,
          "lph": 23.8
        },
        {
          "rpm": 2900,
          "lph": 26
        },
        {
          "rpm": 3000,
          "lph": 29
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d3150i",
        "manufacturer": "Volvo Penta",
        "model": "D3-150i",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3000,
        "note": "D3-150 I manufacturer graph, English 12-2016, 110 kW / 3000 RPM. No individual G/H hardware suffix or installed-boat certification is implied.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
            "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
            "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
            "page": 1,
            "edition": "English 12-2016",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016",
        "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
        "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
        "page": 1,
        "edition": "English 12-2016",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D3-150 I",
        "sourceCurveId": "D3-150 I",
        "sourceRatedPowerKw": 110,
        "sourceEdition": "English 12-2016",
        "applicability": "model-specific",
        "applicabilityNote": "D3-150 I manufacturer graph, English 12-2016, 110 kW / 3000 RPM. No individual G/H hardware suffix or installed-boat certification is implied."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "PDF vector centerline extraction; calibrated RPM/Lh ticks; linear interpolation along observed dash segments and short internal dash gaps",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d3220",
      "manufacturer": "Volvo Penta",
      "model": "D3-220",
      "aliases": [],
      "variants": [
        "D3-220"
      ],
      "displayName": "Volvo Penta D3-220",
      "ratedPowerHp": 220,
      "ratedPowerKw": 162,
      "ratedRpm": 4000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Source-scoped D3-220 I manufacturer fuel graph, English 07-2013, 162 kW / 4000 RPM, R5, calculated propeller-load exponent 2.5. The boat's abbreviated D3-220 identity does not certify an exact hardware suffix or calibration. Not the 164 kW D3-220i-G. No power-rescaling or cross-edition blending.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 3.9
        },
        {
          "rpm": 1600,
          "lph": 4.5
        },
        {
          "rpm": 1700,
          "lph": 5.2
        },
        {
          "rpm": 1800,
          "lph": 5.9
        },
        {
          "rpm": 1900,
          "lph": 6.7
        },
        {
          "rpm": 2000,
          "lph": 7.6
        },
        {
          "rpm": 2100,
          "lph": 8.6
        },
        {
          "rpm": 2200,
          "lph": 9.6
        },
        {
          "rpm": 2300,
          "lph": 10.6
        },
        {
          "rpm": 2400,
          "lph": 11.7
        },
        {
          "rpm": 2500,
          "lph": 13.1
        },
        {
          "rpm": 2600,
          "lph": 14.4
        },
        {
          "rpm": 2700,
          "lph": 15.7
        },
        {
          "rpm": 2800,
          "lph": 17.3
        },
        {
          "rpm": 2900,
          "lph": 18.9
        },
        {
          "rpm": 3000,
          "lph": 20.3
        },
        {
          "rpm": 3100,
          "lph": 21.8
        },
        {
          "rpm": 3200,
          "lph": 23.5
        },
        {
          "rpm": 3300,
          "lph": 25.7
        },
        {
          "rpm": 3400,
          "lph": 27.8
        },
        {
          "rpm": 3500,
          "lph": 30.3
        },
        {
          "rpm": 3600,
          "lph": 32.2
        },
        {
          "rpm": 3700,
          "lph": 35
        },
        {
          "rpm": 3800,
          "lph": 38
        },
        {
          "rpm": 3900,
          "lph": 41.4
        },
        {
          "rpm": 4000,
          "lph": 45.5
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d3220",
        "manufacturer": "Volvo Penta",
        "model": "D3-220",
        "manufacturerRatedPowerKw": 162,
        "manufacturerRatedRpm": 4000,
        "note": "Source-scoped D3-220 I manufacturer fuel graph, English 07-2013, 162 kW / 4000 RPM, R5, calculated propeller-load exponent 2.5. The boat's abbreviated D3-220 identity does not certify an exact hardware suffix or calibration. Not the 164 kW D3-220i-G. No power-rescaling or cross-edition blending.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D3-170,200,220",
            "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d3-220-d3-220.pdf",
            "sha256": "a8cd79187b3c2d990738cb65ae7f076ee28a4d18d91517caaf66fb8590d4cf6c",
            "page": 1,
            "edition": "English 07-2013; copyright 2013 AB Volvo Penta, printed on page 2",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta Inboard Diesel D3-170,200,220",
        "url": "https://sra-moteur.com/uploads/catalogue/produits/documentations/d3-220-d3-220.pdf",
        "sha256": "a8cd79187b3c2d990738cb65ae7f076ee28a4d18d91517caaf66fb8590d4cf6c",
        "page": 1,
        "edition": "English 07-2013; copyright 2013 AB Volvo Penta, printed on page 2",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "loadBasis": "manufacturer calculated propeller load",
        "loadConditionNote": "At calculated propeller load exp. 2.5 is printed directly above the hourly fuel graph; not full-load fuel or measured boat consumption.",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D3-220 I",
        "sourceCurveId": "volvo-d3-220-i-2013-07",
        "sourceRatedPowerKw": 162,
        "sourceEdition": "English 07-2013; copyright 2013 AB Volvo Penta, printed on page 2",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Source-scoped D3-220 I manufacturer fuel graph, English 07-2013, 162 kW / 4000 RPM, R5, calculated propeller-load exponent 2.5. The boat's abbreviated D3-220 identity does not certify an exact hardware suffix or calibration. Not the 164 kW D3-220i-G. No power-rescaling or cross-edition blending."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-vector-polyline-intersections",
        "uncertaintyLph": 0.3,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "a8cd79187b3c2d990738cb65ae7f076ee28a4d18d91517caaf66fb8590d4cf6c",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d4175",
      "manufacturer": "Volvo Penta",
      "model": "D4-175",
      "aliases": [],
      "variants": [
        "D4-175"
      ],
      "displayName": "Volvo Penta D4-175",
      "ratedPowerHp": 175.4,
      "ratedPowerKw": 129,
      "ratedRpm": 2800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 129 kW / 2800 RPM D4-175 I manufacturer graph for the abbreviated inboard D4-175 label. This is not the D4-180 curve.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 2.9
        },
        {
          "rpm": 1100,
          "lph": 3.7
        },
        {
          "rpm": 1200,
          "lph": 4.4
        },
        {
          "rpm": 1300,
          "lph": 5.2
        },
        {
          "rpm": 1400,
          "lph": 6
        },
        {
          "rpm": 1500,
          "lph": 7
        },
        {
          "rpm": 1600,
          "lph": 8.2
        },
        {
          "rpm": 1700,
          "lph": 9.6
        },
        {
          "rpm": 1800,
          "lph": 11.2
        },
        {
          "rpm": 1900,
          "lph": 12.6
        },
        {
          "rpm": 2000,
          "lph": 14.2
        },
        {
          "rpm": 2100,
          "lph": 15.9
        },
        {
          "rpm": 2200,
          "lph": 17.9
        },
        {
          "rpm": 2300,
          "lph": 20
        },
        {
          "rpm": 2400,
          "lph": 22.2
        },
        {
          "rpm": 2500,
          "lph": 24.4
        },
        {
          "rpm": 2600,
          "lph": 27.2
        },
        {
          "rpm": 2700,
          "lph": 30
        },
        {
          "rpm": 2800,
          "lph": 33.5
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d4175",
        "manufacturer": "Volvo Penta",
        "model": "D4-175",
        "manufacturerRatedPowerKw": 129,
        "manufacturerRatedRpm": 2800,
        "note": "Uses the 129 kW / 2800 RPM D4-175 I manufacturer graph for the abbreviated inboard D4-175 label. This is not the D4-180 curve.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D4-175/230, English 05-2021",
            "url": "https://irp.cdn-website.com/dca030c4/files/uploaded/D4-175_230_v1.pdf",
            "sha256": "2c560c2eafde28e363997d65db6c025e91391f965c1d49240f2fbf84c3967b04",
            "page": 1,
            "edition": "English 05-2021",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta Inboard Diesel D4-175/230, English 05-2021",
        "url": "https://irp.cdn-website.com/dca030c4/files/uploaded/D4-175_230_v1.pdf",
        "sha256": "2c560c2eafde28e363997d65db6c025e91391f965c1d49240f2fbf84c3967b04",
        "page": 1,
        "edition": "English 05-2021",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D4-175 I",
        "sourceCurveId": "D4-175 I",
        "sourceRatedPowerKw": 129,
        "sourceEdition": "English 05-2021",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 129 kW / 2800 RPM D4-175 I manufacturer graph for the abbreviated inboard D4-175 label. This is not the D4-180 curve."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "PDF vector centerline extraction; calibrated RPM/Lh ticks; direct cubic-Bezier x(t) inversion of original PDF path, not a fuel/power formula",
        "uncertaintyLph": 0.3,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "2c560c2eafde28e363997d65db6c025e91391f965c1d49240f2fbf84c3967b04",
        "sourcePage": 1
      }
    },
    {
      "id": "review_volvopenta_d4180",
      "manufacturer": "Volvo Penta",
      "model": "D4-180",
      "aliases": [],
      "variants": [
        "D4-180"
      ],
      "displayName": "Volvo Penta D4-180",
      "ratedPowerHp": 179.5,
      "ratedPowerKw": 132,
      "ratedRpm": 2800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_numeric_load_table",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Numeric 2012-08-21 issue-01 cubic propeller-load table, not a BSFC-generated estimate. Generic label is represented only by the explicitly selected D4-180 I edition. The undated sheet has different fuel values; installed suffix/calibration not established.",
        "Source-scoped manufacturer numeric reference at the published cubic operating-load condition. The installed engine edition and calibration have not been established; the separate older table differs. Linear interpolation only within 1000-2800 RPM, with no extrapolation. This is not measured boat consumption or proof of the selected boat's actual load."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 2.3
        },
        {
          "rpm": 1500,
          "lph": 5.7
        },
        {
          "rpm": 2000,
          "lph": 12.5
        },
        {
          "rpm": 2500,
          "lph": 24.3
        },
        {
          "rpm": 2800,
          "lph": 34.7
        }
      ],
      "fuelReferenceSource": {
        "title": "Volvo Penta D4-180 I Technical Data 21954790, issue 01, 2012-08-21",
        "url": "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 1: R4, 132 kW, rated speed 2800 RPM. PDF page 2: Fuel system, RPM columns 1000/1500/2000/2500/2800, l/h row Fuel consumption at prop. load x 3.",
        "evidence": "Cubic-load row: 2.3/5.7/12.5/24.3/34.7 L/h. The distinct exponent-2.5 row is 3.3/7.4/14.6/25.6/34.7. Neither is a boat trial.",
        "access": "Original manufacturer technical sheet mirrored by DB Moteurs. PDF text extracted; complete page 2 rendered in memory and visually inspected for rows, units, edition and column alignment.",
        "sha256": "dbf6dbb024a91f32f47fee79907d7c6da9752eae9a33cb097e36d13c6abc49d4"
      },
      "curveConditions": {
        "loadExponent": 3,
        "sourceId": "all-volvo-vp-d4180-table-2012",
        "boatMeasurement": false,
        "extrapolation": "none"
      },
      "ratingReview": {
        "referenceId": "review_volvopenta_d4180",
        "manufacturer": "Volvo Penta",
        "model": "D4-180",
        "manufacturerRatedPowerKw": 132,
        "manufacturerRatedRpm": 2800,
        "warning": true,
        "warningNote": "Rating assumption: Numeric 2012-08-21 issue-01 cubic propeller-load table, not a BSFC-generated estimate. Generic label is represented only by the explicitly selected D4-180 I edition. The undated sheet has different fuel values; installed suffix/calibration not established.",
        "note": "Numeric 2012-08-21 issue-01 cubic propeller-load table, not a BSFC-generated estimate. Generic label is represented only by the explicitly selected D4-180 I edition. The undated sheet has different fuel values; installed suffix/calibration not established. Source-scoped manufacturer numeric reference at the published cubic operating-load condition. The installed engine edition and calibration have not been established; the separate older table differs. Linear interpolation only within 1000-2800 RPM, with no extrapolation. This is not measured boat consumption or proof of the selected boat's actual load.",
        "sources": [
          {
            "title": "Volvo Penta D4-180 I Technical Data 21954790, issue 01, 2012-08-21",
            "url": "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: R4, 132 kW, rated speed 2800 RPM. PDF page 2: Fuel system, RPM columns 1000/1500/2000/2500/2800, l/h row Fuel consumption at prop. load x 3.",
            "evidence": "Cubic-load row: 2.3/5.7/12.5/24.3/34.7 L/h. The distinct exponent-2.5 row is 3.3/7.4/14.6/25.6/34.7. Neither is a boat trial.",
            "access": "Original manufacturer technical sheet mirrored by DB Moteurs. PDF text extracted; complete page 2 rendered in memory and visually inspected for rows, units, edition and column alignment.",
            "sha256": "dbf6dbb024a91f32f47fee79907d7c6da9752eae9a33cb097e36d13c6abc49d4"
          },
          {
            "title": "Volvo Penta Technical Data D4-180, undated 64070S03(1).xls export",
            "url": "https://sermakpower.com/brosur/keyif-tekne/t_d4_180.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2, Fuel system, cubic propeller-load l/h row under RPM 1000/1500/2000/2500/2800.",
            "evidence": "Older sheet gives 2.0/5.4/12.5/23.5/33.7 L/h, differing from issue 01 dated 2012. Its precise printed edition is absent; not selected as the primary curve.",
            "access": "Original manufacturer sheet on Sermak Power mirror; direct in-memory PDF extraction and hash. Metadata creation 2005-11-30 and modification 2008-12-05 are file dates, not asserted publication dates.",
            "sha256": "a6deb81831deac18bbd7826f7851397cb69e99155256574e0b4fc2006c33bb83"
          }
        ]
      }
    },
    {
      "id": "review_volvopenta_d4180i",
      "manufacturer": "Volvo Penta",
      "model": "D4-180 I",
      "aliases": [],
      "variants": [
        "D4-180 I"
      ],
      "displayName": "Volvo Penta D4-180 I",
      "ratedPowerHp": 179.5,
      "ratedPowerKw": 132,
      "ratedRpm": 2800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_numeric_load_table",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Published numeric operating-load row for the stated inboard sales designation. 2012 issue-01 table is source-scoped; the older undated sheet differs. Neither identifies the installed hardware suffix or reports boat measurements.",
        "Source-scoped manufacturer numeric reference at the published cubic operating-load condition. The installed engine edition and calibration have not been established; the separate older table differs. Linear interpolation only within 1000-2800 RPM, with no extrapolation. This is not measured boat consumption or proof of the selected boat's actual load."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 2.3
        },
        {
          "rpm": 1500,
          "lph": 5.7
        },
        {
          "rpm": 2000,
          "lph": 12.5
        },
        {
          "rpm": 2500,
          "lph": 24.3
        },
        {
          "rpm": 2800,
          "lph": 34.7
        }
      ],
      "fuelReferenceSource": {
        "title": "Volvo Penta D4-180 I Technical Data 21954790, issue 01, 2012-08-21",
        "url": "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 1: R4, 132 kW, rated speed 2800 RPM. PDF page 2: Fuel system, RPM columns 1000/1500/2000/2500/2800, l/h row Fuel consumption at prop. load x 3.",
        "evidence": "Cubic-load row: 2.3/5.7/12.5/24.3/34.7 L/h. The distinct exponent-2.5 row is 3.3/7.4/14.6/25.6/34.7. Neither is a boat trial.",
        "access": "Original manufacturer technical sheet mirrored by DB Moteurs. PDF text extracted; complete page 2 rendered in memory and visually inspected for rows, units, edition and column alignment.",
        "sha256": "dbf6dbb024a91f32f47fee79907d7c6da9752eae9a33cb097e36d13c6abc49d4"
      },
      "curveConditions": {
        "loadExponent": 3,
        "sourceId": "all-volvo-vp-d4180-table-2012",
        "boatMeasurement": false,
        "extrapolation": "none"
      },
      "ratingReview": {
        "referenceId": "review_volvopenta_d4180i",
        "manufacturer": "Volvo Penta",
        "model": "D4-180 I",
        "manufacturerRatedPowerKw": 132,
        "manufacturerRatedRpm": 2800,
        "warning": true,
        "warningNote": "Rating assumption: Published numeric operating-load row for the stated inboard sales designation. 2012 issue-01 table is source-scoped; the older undated sheet differs. Neither identifies the installed hardware suffix or reports boat measurements.",
        "note": "Published numeric operating-load row for the stated inboard sales designation. 2012 issue-01 table is source-scoped; the older undated sheet differs. Neither identifies the installed hardware suffix or reports boat measurements. Source-scoped manufacturer numeric reference at the published cubic operating-load condition. The installed engine edition and calibration have not been established; the separate older table differs. Linear interpolation only within 1000-2800 RPM, with no extrapolation. This is not measured boat consumption or proof of the selected boat's actual load.",
        "sources": [
          {
            "title": "Volvo Penta D4-180 I Technical Data 21954790, issue 01, 2012-08-21",
            "url": "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: R4, 132 kW, rated speed 2800 RPM. PDF page 2: Fuel system, RPM columns 1000/1500/2000/2500/2800, l/h row Fuel consumption at prop. load x 3.",
            "evidence": "Cubic-load row: 2.3/5.7/12.5/24.3/34.7 L/h. The distinct exponent-2.5 row is 3.3/7.4/14.6/25.6/34.7. Neither is a boat trial.",
            "access": "Original manufacturer technical sheet mirrored by DB Moteurs. PDF text extracted; complete page 2 rendered in memory and visually inspected for rows, units, edition and column alignment.",
            "sha256": "dbf6dbb024a91f32f47fee79907d7c6da9752eae9a33cb097e36d13c6abc49d4"
          },
          {
            "title": "Volvo Penta Technical Data D4-180, undated 64070S03(1).xls export",
            "url": "https://sermakpower.com/brosur/keyif-tekne/t_d4_180.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 2, Fuel system, cubic propeller-load l/h row under RPM 1000/1500/2000/2500/2800.",
            "evidence": "Older sheet gives 2.0/5.4/12.5/23.5/33.7 L/h, differing from issue 01 dated 2012. Its precise printed edition is absent; not selected as the primary curve.",
            "access": "Original manufacturer sheet on Sermak Power mirror; direct in-memory PDF extraction and hash. Metadata creation 2005-11-30 and modification 2008-12-05 are file dates, not asserted publication dates.",
            "sha256": "a6deb81831deac18bbd7826f7851397cb69e99155256574e0b4fc2006c33bb83"
          }
        ]
      }
    },
    {
      "id": "review_volvopenta_d4180if",
      "manufacturer": "Volvo Penta",
      "model": "D4-180I-F",
      "aliases": [],
      "variants": [
        "D4-180I-F"
      ],
      "displayName": "Volvo Penta D4-180I-F",
      "ratedPowerHp": 180,
      "ratedPowerKw": 132,
      "ratedRpm": 2800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Representative D4-180 I manufacturer graph, English 12-2016, 132 kW / 2800 RPM, calculated propeller-load exponent 3. The installed F identity is retained; exact F-suffix fuel calibration is not separately established. This source does not replace or blend the earlier published D4-180 numeric-table references. Not measured boat fuel use.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 2
        },
        {
          "rpm": 1100,
          "lph": 2.5
        },
        {
          "rpm": 1200,
          "lph": 3.1
        },
        {
          "rpm": 1300,
          "lph": 3.7
        },
        {
          "rpm": 1400,
          "lph": 4.5
        },
        {
          "rpm": 1500,
          "lph": 5.4
        },
        {
          "rpm": 1600,
          "lph": 6.5
        },
        {
          "rpm": 1700,
          "lph": 7.8
        },
        {
          "rpm": 1800,
          "lph": 9.3
        },
        {
          "rpm": 1900,
          "lph": 10.8
        },
        {
          "rpm": 2000,
          "lph": 12.5
        },
        {
          "rpm": 2100,
          "lph": 14.3
        },
        {
          "rpm": 2200,
          "lph": 16.2
        },
        {
          "rpm": 2300,
          "lph": 18.3
        },
        {
          "rpm": 2400,
          "lph": 20.7
        },
        {
          "rpm": 2500,
          "lph": 23.5
        },
        {
          "rpm": 2600,
          "lph": 26.6
        },
        {
          "rpm": 2700,
          "lph": 30.1
        },
        {
          "rpm": 2800,
          "lph": 33.6
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvopenta_d4180if",
        "manufacturer": "Volvo Penta",
        "model": "D4-180I-F",
        "manufacturerRatedPowerKw": 132,
        "manufacturerRatedRpm": 2800,
        "note": "Representative D4-180 I manufacturer graph, English 12-2016, 132 kW / 2800 RPM, calculated propeller-load exponent 3. The installed F identity is retained; exact F-suffix fuel calibration is not separately established. This source does not replace or blend the earlier published D4-180 numeric-table references. Not measured boat fuel use.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Diesel D4-180",
            "url": "https://navaboats.com/wp-content/uploads/2022/11/D4-180.pdf",
            "sha256": "2f350fea83cb7e5815f63e47c2ceee22f062ee213a3974f2261f68208b8f4517",
            "page": 1,
            "edition": "English 12-2016; copyright 2016 AB Volvo Penta, printed on page 2",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta Inboard Diesel D4-180",
        "url": "https://navaboats.com/wp-content/uploads/2022/11/D4-180.pdf",
        "sha256": "2f350fea83cb7e5815f63e47c2ceee22f062ee213a3974f2261f68208b8f4517",
        "page": 1,
        "edition": "English 12-2016; copyright 2016 AB Volvo Penta, printed on page 2",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "loadBasis": "manufacturer calculated propeller load",
        "loadConditionNote": "At calculated propeller load exp. 3 is printed directly above the hourly fuel graph; not full-load fuel or measured boat consumption.",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D4-180 I",
        "sourceCurveId": "volvo-d4-180-i-2016-12",
        "sourceRatedPowerKw": 132,
        "sourceEdition": "English 12-2016; copyright 2016 AB Volvo Penta, printed on page 2",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Representative D4-180 I manufacturer graph, English 12-2016, 132 kW / 2800 RPM, calculated propeller-load exponent 3. The installed F identity is retained; exact F-suffix fuel calibration is not separately established. This source does not replace or blend the earlier published D4-180 numeric-table references. Not measured boat fuel use."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-vector-polyline-intersections",
        "uncertaintyLph": 0.3,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "2f350fea83cb7e5815f63e47c2ceee22f062ee213a3974f2261f68208b8f4517",
        "sourcePage": 1
      }
    },
    {
      "id": "review_yanmar_4lv250",
      "manufacturer": "Yanmar",
      "model": "4LV-250",
      "aliases": [],
      "variants": [
        "4LV-250"
      ],
      "displayName": "Yanmar 4LV-250",
      "ratedPowerHp": 250.2,
      "ratedPowerKw": 184,
      "ratedRpm": 3800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 4LV250 manufacturer fuel graph, 184 kW / 3800 RPM, October 2021 datasheet.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1700,
          "lph": 6.75
        },
        {
          "rpm": 1800,
          "lph": 7.8
        },
        {
          "rpm": 1900,
          "lph": 8.85
        },
        {
          "rpm": 2000,
          "lph": 9.95
        },
        {
          "rpm": 2100,
          "lph": 11.1
        },
        {
          "rpm": 2200,
          "lph": 12.35
        },
        {
          "rpm": 2300,
          "lph": 13.7
        },
        {
          "rpm": 2400,
          "lph": 15.25
        },
        {
          "rpm": 2500,
          "lph": 16.85
        },
        {
          "rpm": 2600,
          "lph": 18.5
        },
        {
          "rpm": 2700,
          "lph": 20.15
        },
        {
          "rpm": 2800,
          "lph": 22
        },
        {
          "rpm": 2900,
          "lph": 24
        },
        {
          "rpm": 3000,
          "lph": 26.3
        },
        {
          "rpm": 3100,
          "lph": 28.85
        },
        {
          "rpm": 3200,
          "lph": 31.5
        },
        {
          "rpm": 3300,
          "lph": 34.45
        },
        {
          "rpm": 3400,
          "lph": 37.55
        },
        {
          "rpm": 3500,
          "lph": 40.7
        },
        {
          "rpm": 3600,
          "lph": 44.1
        },
        {
          "rpm": 3700,
          "lph": 48.15
        },
        {
          "rpm": 3800,
          "lph": 52.25
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv250",
        "manufacturer": "Yanmar",
        "model": "4LV-250",
        "manufacturerRatedPowerKw": 184,
        "manufacturerRatedRpm": 3800,
        "note": "Yanmar 4LV250 manufacturer fuel graph, 184 kW / 3800 RPM, October 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV230/4LV250 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV230-250_A4_2021_1018_HR.pdf",
            "sha256": "43337d7361c998bb8bc21f2219919cd6c681a012e9a049c696a7ee15701cb41f",
            "page": 2,
            "edition": "DS_4LV230/250_A4_102021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4LV230/4LV250 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV230-250_A4_2021_1018_HR.pdf",
        "sha256": "43337d7361c998bb8bc21f2219919cd6c681a012e9a049c696a7ee15701cb41f",
        "page": 2,
        "edition": "DS_4LV230/250_A4_102021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4LV250",
        "sourceCurveId": "4LV250",
        "sourceRatedPowerKw": 184,
        "sourceEdition": "DS_4LV230/250_A4_102021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4LV250 manufacturer fuel graph, 184 kW / 3800 RPM, October 2021 datasheet."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "43337d7361c998bb8bc21f2219919cd6c681a012e9a049c696a7ee15701cb41f",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_6by3160",
      "manufacturer": "Yanmar",
      "model": "6BY3-160",
      "aliases": [],
      "variants": [
        "6BY3-160"
      ],
      "displayName": "Yanmar 6BY3-160",
      "ratedPowerHp": 159.1,
      "ratedPowerKw": 117,
      "ratedRpm": 2800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Exact 6BY3-160 original Yanmar product-page fuel graph image, 117 kW / 2800 RPM, explicitly labelled load exponent 2.5. Nineteen trace readings at 1000-2800 RPM; linear interpolation only, no extrapolation. The specification PDF contains power and torque, not this fuel graph; the source link opens the actual manufacturer image. Not 6BY3-220/260, earlier BY2 or a measured Oceanis Yacht 62 trial.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 3.4
        },
        {
          "rpm": 1100,
          "lph": 3.9
        },
        {
          "rpm": 1200,
          "lph": 4.4
        },
        {
          "rpm": 1300,
          "lph": 4.9
        },
        {
          "rpm": 1400,
          "lph": 5.5
        },
        {
          "rpm": 1500,
          "lph": 6.1
        },
        {
          "rpm": 1600,
          "lph": 6.7
        },
        {
          "rpm": 1700,
          "lph": 7.5
        },
        {
          "rpm": 1800,
          "lph": 8.5
        },
        {
          "rpm": 1900,
          "lph": 9.7
        },
        {
          "rpm": 2000,
          "lph": 11.2
        },
        {
          "rpm": 2100,
          "lph": 12.9
        },
        {
          "rpm": 2200,
          "lph": 14.8
        },
        {
          "rpm": 2300,
          "lph": 17
        },
        {
          "rpm": 2400,
          "lph": 19.5
        },
        {
          "rpm": 2500,
          "lph": 22.2
        },
        {
          "rpm": 2600,
          "lph": 25.1
        },
        {
          "rpm": 2700,
          "lph": 28.3
        },
        {
          "rpm": 2800,
          "lph": 31.9
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_6by3160",
        "manufacturer": "Yanmar",
        "model": "6BY3-160",
        "manufacturerRatedPowerKw": 117,
        "manufacturerRatedRpm": 2800,
        "note": "Exact 6BY3-160 original Yanmar product-page fuel graph image, 117 kW / 2800 RPM, explicitly labelled load exponent 2.5. Nineteen trace readings at 1000-2800 RPM; linear interpolation only, no extrapolation. The specification PDF contains power and torque, not this fuel graph; the source link opens the actual manufacturer image. Not 6BY3-220/260, earlier BY2 or a measured Oceanis Yacht 62 trial.",
        "sources": [
          {
            "title": "YANMAR 6BY3-160 Fuel consumption (load exp. 2.5), official product-page graph",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/06/6BY3-160_fuel_curve.jpg",
            "sha256": "8ac255024d84ed4471b87e6dce738148f93ac3003be9299e5dcce0f63ee25c82",
            "format": "manufacturer-image",
            "mediaType": "image/jpeg",
            "page": null,
            "edition": "Undated original manufacturer image; accessed 2026-10-18. Upload URL is not treated as publication date.",
            "productUrl": "https://www.yanmar.com/marine/product/engines/6by3-160/",
            "specificationUrl": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-6BY3-160-Datasheet.pdf",
            "locator": "Original manufacturer hourly fuel graph image"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 6BY3-160 Fuel consumption (load exp. 2.5), official product-page graph",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/06/6BY3-160_fuel_curve.jpg",
        "sha256": "8ac255024d84ed4471b87e6dce738148f93ac3003be9299e5dcce0f63ee25c82",
        "format": "manufacturer-image",
        "mediaType": "image/jpeg",
        "page": null,
        "edition": "Undated original manufacturer image; accessed 2026-10-18. Upload URL is not treated as publication date.",
        "productUrl": "https://www.yanmar.com/marine/product/engines/6by3-160/",
        "specificationUrl": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-6BY3-160-Datasheet.pdf",
        "locator": "Original manufacturer hourly fuel graph image"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "6BY3-160",
        "sourceCurveId": "yanmar_6by3_160_official_image",
        "sourceRatedPowerKw": 117,
        "sourceEdition": "Undated original manufacturer image; accessed 2026-10-18. Upload URL is not treated as publication date.",
        "applicability": "model-specific",
        "applicabilityNote": "Exact 6BY3-160 original Yanmar product-page fuel graph image, 117 kW / 2800 RPM, explicitly labelled load exponent 2.5. Nineteen trace readings at 1000-2800 RPM; linear interpolation only, no extrapolation. The specification PDF contains power and torque, not this fuel graph; the source link opens the actual manufacturer image. Not 6BY3-220/260, earlier BY2 or a measured Oceanis Yacht 62 trial."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-original-manufacturer-JPEG-blue-centerline",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "8ac255024d84ed4471b87e6dce738148f93ac3003be9299e5dcce0f63ee25c82",
        "sourcePage": null,
        "sourceFormat": "manufacturer-image",
        "sourceMediaType": "image/jpeg"
      }
    },
    {
      "id": "review_yanmar_4lv150",
      "manufacturer": "Yanmar",
      "model": "4LV150",
      "aliases": [],
      "variants": [
        "4LV150"
      ],
      "displayName": "Yanmar 4LV150",
      "ratedPowerHp": 149.6,
      "ratedPowerKw": 110,
      "ratedRpm": 3500,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 4LV150 manufacturer fuel graph, 110 kW / 3500 RPM, December 2021 datasheet.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 4.45
        },
        {
          "rpm": 1700,
          "lph": 5.2
        },
        {
          "rpm": 1800,
          "lph": 5.95
        },
        {
          "rpm": 1900,
          "lph": 6.8
        },
        {
          "rpm": 2000,
          "lph": 7.75
        },
        {
          "rpm": 2100,
          "lph": 8.8
        },
        {
          "rpm": 2200,
          "lph": 9.95
        },
        {
          "rpm": 2300,
          "lph": 11.1
        },
        {
          "rpm": 2400,
          "lph": 12.35
        },
        {
          "rpm": 2500,
          "lph": 13.6
        },
        {
          "rpm": 2600,
          "lph": 14.9
        },
        {
          "rpm": 2700,
          "lph": 16.3
        },
        {
          "rpm": 2800,
          "lph": 17.85
        },
        {
          "rpm": 2900,
          "lph": 19.55
        },
        {
          "rpm": 3000,
          "lph": 21.3
        },
        {
          "rpm": 3100,
          "lph": 23.15
        },
        {
          "rpm": 3200,
          "lph": 25
        },
        {
          "rpm": 3300,
          "lph": 27.05
        },
        {
          "rpm": 3400,
          "lph": 29.1
        },
        {
          "rpm": 3500,
          "lph": 31.1
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv150",
        "manufacturer": "Yanmar",
        "model": "4LV150",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3500,
        "note": "Yanmar 4LV150 manufacturer fuel graph, 110 kW / 3500 RPM, December 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
        "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "page": 2,
        "edition": "DS_4LV150/170/195_A4_122021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4LV150",
        "sourceCurveId": "4LV150",
        "sourceRatedPowerKw": 110,
        "sourceEdition": "DS_4LV150/170/195_A4_122021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4LV150 manufacturer fuel graph, 110 kW / 3500 RPM, December 2021 datasheet."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4lv150cr",
      "manufacturer": "Yanmar",
      "model": "4LV150CR",
      "aliases": [],
      "variants": [
        "4LV150CR"
      ],
      "displayName": "Yanmar 4LV150CR",
      "ratedPowerHp": 149.6,
      "ratedPowerKw": 110,
      "ratedRpm": 3500,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "CR denotes common rail in this reviewed catalogue label. Uses the same 110 kW / 3500 RPM 4LV150 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 4.45
        },
        {
          "rpm": 1700,
          "lph": 5.2
        },
        {
          "rpm": 1800,
          "lph": 5.95
        },
        {
          "rpm": 1900,
          "lph": 6.8
        },
        {
          "rpm": 2000,
          "lph": 7.75
        },
        {
          "rpm": 2100,
          "lph": 8.8
        },
        {
          "rpm": 2200,
          "lph": 9.95
        },
        {
          "rpm": 2300,
          "lph": 11.1
        },
        {
          "rpm": 2400,
          "lph": 12.35
        },
        {
          "rpm": 2500,
          "lph": 13.6
        },
        {
          "rpm": 2600,
          "lph": 14.9
        },
        {
          "rpm": 2700,
          "lph": 16.3
        },
        {
          "rpm": 2800,
          "lph": 17.85
        },
        {
          "rpm": 2900,
          "lph": 19.55
        },
        {
          "rpm": 3000,
          "lph": 21.3
        },
        {
          "rpm": 3100,
          "lph": 23.15
        },
        {
          "rpm": 3200,
          "lph": 25
        },
        {
          "rpm": 3300,
          "lph": 27.05
        },
        {
          "rpm": 3400,
          "lph": 29.1
        },
        {
          "rpm": 3500,
          "lph": 31.1
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv150cr",
        "manufacturer": "Yanmar",
        "model": "4LV150CR",
        "manufacturerRatedPowerKw": 110,
        "manufacturerRatedRpm": 3500,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 110 kW / 3500 RPM 4LV150 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
        "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "page": 2,
        "edition": "DS_4LV150/170/195_A4_122021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4LV150",
        "sourceCurveId": "4LV150",
        "sourceRatedPowerKw": 110,
        "sourceEdition": "DS_4LV150/170/195_A4_122021",
        "applicability": "representative-base-engine",
        "applicabilityNote": "CR denotes common rail in this reviewed catalogue label. Uses the same 110 kW / 3500 RPM 4LV150 base-engine manufacturer graph; no boat-specific measurement is implied."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh45cr",
      "manufacturer": "Yanmar",
      "model": "4JH45CR",
      "aliases": [],
      "variants": [
        "4JH45CR"
      ],
      "displayName": "Yanmar 4JH45CR",
      "ratedPowerHp": 45,
      "ratedPowerKw": 33.1,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "CR denotes common rail in this reviewed catalogue label. Uses the same 33.1 kW / 3000 RPM 4JH45 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.75
        },
        {
          "rpm": 1100,
          "lph": 0.9
        },
        {
          "rpm": 1200,
          "lph": 1.05
        },
        {
          "rpm": 1300,
          "lph": 1.2
        },
        {
          "rpm": 1400,
          "lph": 1.4
        },
        {
          "rpm": 1500,
          "lph": 1.6
        },
        {
          "rpm": 1600,
          "lph": 1.8
        },
        {
          "rpm": 1700,
          "lph": 2.1
        },
        {
          "rpm": 1800,
          "lph": 2.4
        },
        {
          "rpm": 1900,
          "lph": 2.7
        },
        {
          "rpm": 2000,
          "lph": 3.1
        },
        {
          "rpm": 2100,
          "lph": 3.5
        },
        {
          "rpm": 2200,
          "lph": 4
        },
        {
          "rpm": 2300,
          "lph": 4.55
        },
        {
          "rpm": 2400,
          "lph": 5.1
        },
        {
          "rpm": 2500,
          "lph": 5.7
        },
        {
          "rpm": 2600,
          "lph": 6.4
        },
        {
          "rpm": 2700,
          "lph": 7.2
        },
        {
          "rpm": 2800,
          "lph": 8.05
        },
        {
          "rpm": 2900,
          "lph": 8.95
        },
        {
          "rpm": 3000,
          "lph": 9.85
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh45cr",
        "manufacturer": "Yanmar",
        "model": "4JH45CR",
        "manufacturerRatedPowerKw": 33.1,
        "manufacturerRatedRpm": 3000,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 33.1 kW / 3000 RPM 4JH45 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
        "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "page": 2,
        "edition": "DS_4JH45/57_A4_01292021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH45",
        "sourceCurveId": "4JH45",
        "sourceRatedPowerKw": 33.1,
        "sourceEdition": "DS_4JH45/57_A4_01292021",
        "applicability": "representative-base-engine",
        "applicabilityNote": "CR denotes common rail in this reviewed catalogue label. Uses the same 33.1 kW / 3000 RPM 4JH45 base-engine manufacturer graph; no boat-specific measurement is implied."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh57cr",
      "manufacturer": "Yanmar",
      "model": "4JH57CR",
      "aliases": [],
      "variants": [
        "4JH57CR"
      ],
      "displayName": "Yanmar 4JH57CR",
      "ratedPowerHp": 57,
      "ratedPowerKw": 41.9,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "CR denotes common rail in this reviewed catalogue label. Uses the same 41.9 kW / 3000 RPM 4JH57 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.65
        },
        {
          "rpm": 1100,
          "lph": 0.8
        },
        {
          "rpm": 1200,
          "lph": 0.95
        },
        {
          "rpm": 1300,
          "lph": 1.15
        },
        {
          "rpm": 1400,
          "lph": 1.3
        },
        {
          "rpm": 1500,
          "lph": 1.5
        },
        {
          "rpm": 1600,
          "lph": 1.75
        },
        {
          "rpm": 1700,
          "lph": 2.05
        },
        {
          "rpm": 1800,
          "lph": 2.3
        },
        {
          "rpm": 1900,
          "lph": 2.65
        },
        {
          "rpm": 2000,
          "lph": 3
        },
        {
          "rpm": 2100,
          "lph": 3.45
        },
        {
          "rpm": 2200,
          "lph": 3.95
        },
        {
          "rpm": 2300,
          "lph": 4.5
        },
        {
          "rpm": 2400,
          "lph": 5.05
        },
        {
          "rpm": 2500,
          "lph": 5.65
        },
        {
          "rpm": 2600,
          "lph": 6.35
        },
        {
          "rpm": 2700,
          "lph": 7.2
        },
        {
          "rpm": 2800,
          "lph": 8.05
        },
        {
          "rpm": 2900,
          "lph": 8.95
        },
        {
          "rpm": 3000,
          "lph": 9.8
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh57cr",
        "manufacturer": "Yanmar",
        "model": "4JH57CR",
        "manufacturerRatedPowerKw": 41.9,
        "manufacturerRatedRpm": 3000,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 41.9 kW / 3000 RPM 4JH57 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
            "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
            "page": 2,
            "edition": "DS_4JH45/57_A4_01292021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4JH45/4JH57 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH45-57_A4_022021_HR.pdf",
        "sha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "page": 2,
        "edition": "DS_4JH45/57_A4_01292021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH57",
        "sourceCurveId": "4JH57",
        "sourceRatedPowerKw": 41.9,
        "sourceEdition": "DS_4JH45/57_A4_01292021",
        "applicability": "representative-base-engine",
        "applicabilityNote": "CR denotes common rail in this reviewed catalogue label. Uses the same 41.9 kW / 3000 RPM 4JH57 base-engine manufacturer graph; no boat-specific measurement is implied."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "19310e26acc677893429c7b1fd689051e3917dfce8f5f7092fd263df7f5a8e13",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh80cr",
      "manufacturer": "Yanmar",
      "model": "4JH80CR",
      "aliases": [],
      "variants": [
        "4JH80CR"
      ],
      "displayName": "Yanmar 4JH80CR",
      "ratedPowerHp": 79.9,
      "ratedPowerKw": 58.8,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "CR denotes common rail in this reviewed catalogue label. Uses the same 58.8 kW / 3200 RPM 4JH80 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 0.7
        },
        {
          "rpm": 1100,
          "lph": 0.9
        },
        {
          "rpm": 1200,
          "lph": 1.05
        },
        {
          "rpm": 1300,
          "lph": 1.3
        },
        {
          "rpm": 1400,
          "lph": 1.55
        },
        {
          "rpm": 1500,
          "lph": 1.85
        },
        {
          "rpm": 1600,
          "lph": 2.15
        },
        {
          "rpm": 1700,
          "lph": 2.55
        },
        {
          "rpm": 1800,
          "lph": 2.95
        },
        {
          "rpm": 1900,
          "lph": 3.45
        },
        {
          "rpm": 2000,
          "lph": 4
        },
        {
          "rpm": 2100,
          "lph": 4.55
        },
        {
          "rpm": 2200,
          "lph": 5.2
        },
        {
          "rpm": 2300,
          "lph": 5.9
        },
        {
          "rpm": 2400,
          "lph": 6.7
        },
        {
          "rpm": 2500,
          "lph": 7.6
        },
        {
          "rpm": 2600,
          "lph": 8.6
        },
        {
          "rpm": 2700,
          "lph": 9.75
        },
        {
          "rpm": 2800,
          "lph": 11
        },
        {
          "rpm": 2900,
          "lph": 12.3
        },
        {
          "rpm": 3000,
          "lph": 13.65
        },
        {
          "rpm": 3100,
          "lph": 14.95
        },
        {
          "rpm": 3200,
          "lph": 16.2
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh80cr",
        "manufacturer": "Yanmar",
        "model": "4JH80CR",
        "manufacturerRatedPowerKw": 58.8,
        "manufacturerRatedRpm": 3200,
        "note": "CR denotes common rail in this reviewed catalogue label. Uses the same 58.8 kW / 3200 RPM 4JH80 base-engine manufacturer graph; no boat-specific measurement is implied.",
        "sources": [
          {
            "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
            "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
            "page": 2,
            "edition": "DS_4JH80/110_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4JH80/4JH110 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
        "sha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
        "page": 2,
        "edition": "DS_4JH80/110_A4_052022",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH80",
        "sourceCurveId": "4JH80",
        "sourceRatedPowerKw": 58.8,
        "sourceEdition": "DS_4JH80/110_A4_052022",
        "applicability": "representative-base-engine",
        "applicabilityNote": "CR denotes common rail in this reviewed catalogue label. Uses the same 58.8 kW / 3200 RPM 4JH80 base-engine manufacturer graph; no boat-specific measurement is implied."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.1,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "6ee2b90de1efd30068ae38073766856d5cab2883be6d160f7965fa9407a2ab22",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4lv195",
      "manufacturer": "Yanmar",
      "model": "4LV195",
      "aliases": [],
      "variants": [
        "4LV195"
      ],
      "displayName": "Yanmar 4LV195",
      "ratedPowerHp": 194.4,
      "ratedPowerKw": 143,
      "ratedRpm": 3500,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 4LV195 manufacturer fuel graph, 143 kW / 3500 RPM, December 2021 datasheet.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 4.95
        },
        {
          "rpm": 1700,
          "lph": 5.95
        },
        {
          "rpm": 1800,
          "lph": 6.95
        },
        {
          "rpm": 1900,
          "lph": 7.9
        },
        {
          "rpm": 2000,
          "lph": 9
        },
        {
          "rpm": 2100,
          "lph": 10.45
        },
        {
          "rpm": 2200,
          "lph": 11.95
        },
        {
          "rpm": 2300,
          "lph": 13.45
        },
        {
          "rpm": 2400,
          "lph": 15
        },
        {
          "rpm": 2500,
          "lph": 16.45
        },
        {
          "rpm": 2600,
          "lph": 18.1
        },
        {
          "rpm": 2700,
          "lph": 20.15
        },
        {
          "rpm": 2800,
          "lph": 22.5
        },
        {
          "rpm": 2900,
          "lph": 25.05
        },
        {
          "rpm": 3000,
          "lph": 27.7
        },
        {
          "rpm": 3100,
          "lph": 30.1
        },
        {
          "rpm": 3200,
          "lph": 32.5
        },
        {
          "rpm": 3300,
          "lph": 35
        },
        {
          "rpm": 3400,
          "lph": 37.8
        },
        {
          "rpm": 3500,
          "lph": 40.85
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv195",
        "manufacturer": "Yanmar",
        "model": "4LV195",
        "manufacturerRatedPowerKw": 143,
        "manufacturerRatedRpm": 3500,
        "note": "Yanmar 4LV195 manufacturer fuel graph, 143 kW / 3500 RPM, December 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
        "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "page": 2,
        "edition": "DS_4LV150/170/195_A4_122021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4LV195",
        "sourceCurveId": "4LV195",
        "sourceRatedPowerKw": 143,
        "sourceEdition": "DS_4LV150/170/195_A4_122021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4LV195 manufacturer fuel graph, 143 kW / 3500 RPM, December 2021 datasheet."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_6ly400",
      "manufacturer": "Yanmar",
      "model": "6LY400",
      "aliases": [],
      "variants": [
        "6LY400"
      ],
      "displayName": "Yanmar 6LY400",
      "ratedPowerHp": 399.7,
      "ratedPowerKw": 294,
      "ratedRpm": 3300,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 6LY400 manufacturer fuel graph, 294 kW / 3300 RPM, April 2026 datasheet.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1500,
          "lph": 11.2
        },
        {
          "rpm": 1600,
          "lph": 13.15
        },
        {
          "rpm": 1700,
          "lph": 15.3
        },
        {
          "rpm": 1800,
          "lph": 17.5
        },
        {
          "rpm": 1900,
          "lph": 20.05
        },
        {
          "rpm": 2000,
          "lph": 22.9
        },
        {
          "rpm": 2100,
          "lph": 26.15
        },
        {
          "rpm": 2200,
          "lph": 29.35
        },
        {
          "rpm": 2300,
          "lph": 32.8
        },
        {
          "rpm": 2400,
          "lph": 36.35
        },
        {
          "rpm": 2500,
          "lph": 40.1
        },
        {
          "rpm": 2600,
          "lph": 44.2
        },
        {
          "rpm": 2700,
          "lph": 48.7
        },
        {
          "rpm": 2800,
          "lph": 53.3
        },
        {
          "rpm": 2900,
          "lph": 58.2
        },
        {
          "rpm": 3000,
          "lph": 63.3
        },
        {
          "rpm": 3100,
          "lph": 68.8
        },
        {
          "rpm": 3200,
          "lph": 74.4
        },
        {
          "rpm": 3300,
          "lph": 80.3
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_6ly400",
        "manufacturer": "Yanmar",
        "model": "6LY400",
        "manufacturerRatedPowerKw": 294,
        "manufacturerRatedRpm": 3300,
        "note": "Yanmar 6LY400 manufacturer fuel graph, 294 kW / 3300 RPM, April 2026 datasheet.",
        "sources": [
          {
            "title": "YANMAR 6LY400/6LY440 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2025/10/6LY400-440_DS_A4_2026_0413-HR.pdf",
            "sha256": "2e1d15dc2ea875e75c579c4b335eac065ecb9ec0d14c99a5d1085810c7be98c8",
            "page": 2,
            "edition": "DS_6LY400/440_A4_04-2026",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 6LY400/6LY440 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2025/10/6LY400-440_DS_A4_2026_0413-HR.pdf",
        "sha256": "2e1d15dc2ea875e75c579c4b335eac065ecb9ec0d14c99a5d1085810c7be98c8",
        "page": 2,
        "edition": "DS_6LY400/440_A4_04-2026",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "6LY400",
        "sourceCurveId": "6LY400",
        "sourceRatedPowerKw": 294,
        "sourceEdition": "DS_6LY400/440_A4_04-2026",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 6LY400 manufacturer fuel graph, 294 kW / 3300 RPM, April 2026 datasheet."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.35,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "2e1d15dc2ea875e75c579c4b335eac065ecb9ec0d14c99a5d1085810c7be98c8",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4lv170",
      "manufacturer": "Yanmar",
      "model": "4LV170",
      "aliases": [],
      "variants": [
        "4LV170"
      ],
      "displayName": "Yanmar 4LV170",
      "ratedPowerHp": 170,
      "ratedPowerKw": 125,
      "ratedRpm": 3500,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 4LV170 manufacturer fuel graph, 125 kW / 3500 RPM, December 2021 datasheet.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 5
        },
        {
          "rpm": 1700,
          "lph": 5.8
        },
        {
          "rpm": 1800,
          "lph": 6.6
        },
        {
          "rpm": 1900,
          "lph": 7.5
        },
        {
          "rpm": 2000,
          "lph": 8.55
        },
        {
          "rpm": 2100,
          "lph": 9.8
        },
        {
          "rpm": 2200,
          "lph": 11.15
        },
        {
          "rpm": 2300,
          "lph": 12.5
        },
        {
          "rpm": 2400,
          "lph": 13.95
        },
        {
          "rpm": 2500,
          "lph": 15.45
        },
        {
          "rpm": 2600,
          "lph": 17
        },
        {
          "rpm": 2700,
          "lph": 18.65
        },
        {
          "rpm": 2800,
          "lph": 20.35
        },
        {
          "rpm": 2900,
          "lph": 22.2
        },
        {
          "rpm": 3000,
          "lph": 24.15
        },
        {
          "rpm": 3100,
          "lph": 26.2
        },
        {
          "rpm": 3200,
          "lph": 28.35
        },
        {
          "rpm": 3300,
          "lph": 30.65
        },
        {
          "rpm": 3400,
          "lph": 33.05
        },
        {
          "rpm": 3500,
          "lph": 35.45
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4lv170",
        "manufacturer": "Yanmar",
        "model": "4LV170",
        "manufacturerRatedPowerKw": 125,
        "manufacturerRatedRpm": 3500,
        "note": "Yanmar 4LV170 manufacturer fuel graph, 125 kW / 3500 RPM, December 2021 datasheet.",
        "sources": [
          {
            "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
            "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
            "page": 2,
            "edition": "DS_4LV150/170/195_A4_122021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "YANMAR 4LV150/4LV170/4LV195 Marine Common Rail Engines - manufacturer datasheet",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1214.pdf",
        "sha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "page": 2,
        "edition": "DS_4LV150/170/195_A4_122021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4LV170",
        "sourceCurveId": "4LV170",
        "sourceRatedPowerKw": 125,
        "sourceEdition": "DS_4LV150/170/195_A4_122021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4LV170 manufacturer fuel graph, 125 kW / 3500 RPM, December 2021 datasheet."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "Calibrated native PDF raster fuel-curve pixel tracing (manufacturer propeller load, not full load)",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "6a5061249b0d20c4570b7ce2d18de9a8e97547e05c7a5cd1c0246c85b52f71db",
        "sourcePage": 2
      }
    },
    {
      "id": "review_nanni_n450",
      "manufacturer": "Nanni",
      "model": "N4.50",
      "aliases": [],
      "variants": [
        "N4.50"
      ],
      "displayName": "Nanni N4.50",
      "ratedPowerHp": 48.1,
      "ratedPowerKw": 35.4,
      "ratedRpm": 2800,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "estimated_from_manufacturer_rated_fuel",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Selected pair follows the exact-model 012024 product-guide edition; DGBXXC01007 independently identifies crankshaft 35.42 kW at the same rated speed. Edition-specific reference, not a universal installed-generation match. The 012014 manual instead gives 36.8 kW / 50 PS at 2800 RPM. Keep the guide's 35.4 kW / 47.5 hp and leaflet's 35.42 kW / 47.5 hp as printed; do not reconcile power units or establish a generation by horsepower alone.",
        "Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.533
        },
        {
          "rpm": 1100,
          "lph": 0.709
        },
        {
          "rpm": 1200,
          "lph": 0.921
        },
        {
          "rpm": 1300,
          "lph": 1.171
        },
        {
          "rpm": 1400,
          "lph": 1.462
        },
        {
          "rpm": 1500,
          "lph": 1.799
        },
        {
          "rpm": 1600,
          "lph": 2.183
        },
        {
          "rpm": 1700,
          "lph": 2.619
        },
        {
          "rpm": 1800,
          "lph": 3.108
        },
        {
          "rpm": 1900,
          "lph": 3.656
        },
        {
          "rpm": 2000,
          "lph": 4.264
        },
        {
          "rpm": 2100,
          "lph": 4.936
        },
        {
          "rpm": 2200,
          "lph": 5.675
        },
        {
          "rpm": 2300,
          "lph": 6.485
        },
        {
          "rpm": 2400,
          "lph": 7.368
        },
        {
          "rpm": 2500,
          "lph": 8.328
        },
        {
          "rpm": 2600,
          "lph": 9.368
        },
        {
          "rpm": 2700,
          "lph": 10.491
        },
        {
          "rpm": 2800,
          "lph": 11.7
        }
      ],
      "fuelReferenceSource": {
        "title": "Nanni Product Guide, DGBXXC03001K 012024",
        "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
        "kind": "manufacturer-document",
        "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
        "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
        "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
        "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
      },
      "curveAssumptions": {
        "loadExponent": 3,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 11.7,
        "ratedFuelSourceId": "all-nanni-nanni-product-guide-012024",
        "formula": "max(minimumFuelLph, ratedFuelLph * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "review_nanni_n450",
        "manufacturer": "Nanni",
        "model": "N4.50",
        "manufacturerRatedPowerKw": 35.4,
        "manufacturerRatedRpm": 2800,
        "warning": true,
        "warningNote": "Rating assumption: Selected pair follows the exact-model 012024 product-guide edition; DGBXXC01007 independently identifies crankshaft 35.42 kW at the same rated speed. Edition-specific reference, not a universal installed-generation match. The 012014 manual instead gives 36.8 kW / 50 PS at 2800 RPM. Keep the guide's 35.4 kW / 47.5 hp and leaflet's 35.42 kW / 47.5 hp as printed; do not reconcile power units or establish a generation by horsepower alone.",
        "note": "Selected pair follows the exact-model 012024 product-guide edition; DGBXXC01007 independently identifies crankshaft 35.42 kW at the same rated speed. Edition-specific reference, not a universal installed-generation match. The 012014 manual instead gives 36.8 kW / 50 PS at 2800 RPM. Keep the guide's 35.4 kW / 47.5 hp and leaflet's 35.42 kW / 47.5 hp as printed; do not reconcile power units or establish a generation by horsepower alone. Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits.",
        "sources": [
          {
            "title": "Nanni Product Guide, DGBXXC03001K 012024",
            "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
            "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
            "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
            "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
          },
          {
            "title": "Nanni N4.50 propulsion-engine leaflet, DGBXXC01007",
            "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXC01007-N4.50.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC01007; no issue date established",
            "locator": "PDF page 1: Power at crankshaft, Rated speed and Idling speed; page 2: heading and document code",
            "evidence": "Exact N4.50: crankshaft 35.42 kW [47.5 hp], rated 2800 RPM, idle 840 RPM, Kubota base and mechanical indirect injection. Page 2 has graphical fuel curves, not a numeric RPM/l/h table. The printed 35.42/47.5 pair is preserved without recomputing horsepower.",
            "access": "Manufacturer-hosted PDF opened and text extracted; specification page rendered and visually inspected in memory on 2026-10-17."
          },
          {
            "title": "Nanni N4.40/N4.43HD/N4.47MD/N4.50 German operator manual, 012014.IndB",
            "url": "https://nannienergy.com/wp-content/uploads/2023/08/Manuel-N4.40-N4.50-DEU-1.pdf",
            "kind": "manufacturer-document",
            "edition": "012014.IndB, printed on final PDF page 67",
            "locator": "PDF page 64 / printed 61, Technical Data: N4.50 column and shared rated-speed row",
            "evidence": "N4.50 column prints maximum 36.8 kW / 50 PS; the rated-speed row is 2800 RPM. This differs from the later guide and DGBXXC01007 leaflet. The documents do not establish a serial-number or generation changeover.",
            "access": "Manufacturer-hosted PDF opened and text extracted; technical-data page rendered and visually inspected in memory on 2026-10-17."
          }
        ]
      }
    },
    {
      "id": "review_nanni_n465",
      "manufacturer": "Nanni",
      "model": "N4.65",
      "aliases": [],
      "variants": [
        "N4.65"
      ],
      "displayName": "Nanni N4.65",
      "ratedPowerHp": 59,
      "ratedPowerKw": 43.4,
      "ratedRpm": 2700,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "estimated_from_manufacturer_rated_fuel",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "DGBXXC01008B explicitly identifies crankshaft power and its rated speed for the mechanical-indirect-injection N4.65. The sourced rating is 59 hp, not 65 hp inferred from the model name. The older 20170102C leaflet's fuel-system descriptions conflict internally; they do not establish a common-rail generation. Installed-vessel identity remains unverified.",
        "Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.5
        },
        {
          "rpm": 1000,
          "lph": 0.686
        },
        {
          "rpm": 1100,
          "lph": 0.913
        },
        {
          "rpm": 1200,
          "lph": 1.185
        },
        {
          "rpm": 1300,
          "lph": 1.507
        },
        {
          "rpm": 1400,
          "lph": 1.882
        },
        {
          "rpm": 1500,
          "lph": 2.315
        },
        {
          "rpm": 1600,
          "lph": 2.809
        },
        {
          "rpm": 1700,
          "lph": 3.37
        },
        {
          "rpm": 1800,
          "lph": 4
        },
        {
          "rpm": 1900,
          "lph": 4.704
        },
        {
          "rpm": 2000,
          "lph": 5.487
        },
        {
          "rpm": 2100,
          "lph": 6.352
        },
        {
          "rpm": 2200,
          "lph": 7.303
        },
        {
          "rpm": 2300,
          "lph": 8.345
        },
        {
          "rpm": 2400,
          "lph": 9.481
        },
        {
          "rpm": 2500,
          "lph": 10.717
        },
        {
          "rpm": 2600,
          "lph": 12.055
        },
        {
          "rpm": 2700,
          "lph": 13.5
        }
      ],
      "fuelReferenceSource": {
        "title": "Nanni Product Guide, DGBXXC03001K 012024",
        "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
        "kind": "manufacturer-document",
        "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
        "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
        "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
        "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
      },
      "curveAssumptions": {
        "loadExponent": 3,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 13.5,
        "ratedFuelSourceId": "all-nanni-nanni-product-guide-012024",
        "formula": "max(minimumFuelLph, ratedFuelLph * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "review_nanni_n465",
        "manufacturer": "Nanni",
        "model": "N4.65",
        "manufacturerRatedPowerKw": 43.4,
        "manufacturerRatedRpm": 2700,
        "warning": true,
        "warningNote": "Rating assumption: DGBXXC01008B explicitly identifies crankshaft power and its rated speed for the mechanical-indirect-injection N4.65. The sourced rating is 59 hp, not 65 hp inferred from the model name. The older 20170102C leaflet's fuel-system descriptions conflict internally; they do not establish a common-rail generation. Installed-vessel identity remains unverified.",
        "note": "DGBXXC01008B explicitly identifies crankshaft power and its rated speed for the mechanical-indirect-injection N4.65. The sourced rating is 59 hp, not 65 hp inferred from the model name. The older 20170102C leaflet's fuel-system descriptions conflict internally; they do not establish a common-rail generation. Installed-vessel identity remains unverified. Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits.",
        "sources": [
          {
            "title": "Nanni N4.65 propulsion-engine leaflet, DGBXXC01008B",
            "url": "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01008B_N4.65-2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC01008B; no issue date established",
            "locator": "PDF page 1: specification rows; page 2: heading, fuel-system description and document code",
            "evidence": "Exact N4.65: crankshaft 43.4 kW [59 hp], rated 2700 RPM, idle 850 RPM. Kubota 2.434-litre turbocharged diesel with mechanical indirect injection. Page 2 specifies indirect E-TVCS and two valves per cylinder. The model number does not mean 65 hp.",
            "access": "PDF linked directly by the manufacturer's N4.65 product page; opened, text extracted and specification page rendered and visually inspected in memory on 2026-10-17."
          },
          {
            "title": "Nanni Product Guide, DGBXXC03001K 012024",
            "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
            "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
            "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
            "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
          },
          {
            "title": "Nanni N4.65 original leaflet, 20170102C ENG, distributor-hosted copy",
            "url": "https://nannidiesel.eu/wp-content/uploads/2017/08/N4.65-ENG.pdf",
            "kind": "manufacturer-document",
            "edition": "20170102C ENG",
            "locator": "PDF page 1 specification table versus PDF page 2 Technical Description",
            "evidence": "Page 1 identifies crankshaft 43.4 kW / 59 hp at rated 2700 RPM and indirect E-TVCS. Page 2 instead describes common rail, four valves per cylinder and DOHC. This is internally inconsistent; do not infer an additional generation or import those fuel-system claims into the selected reference.",
            "access": "Original Nanni-branded leaflet mirrored by Nanni regional distributor site; full PDF text opened on 2026-10-17. Used to preserve a conflict, not as the selected technical-identity source."
          }
        ]
      }
    },
    {
      "id": "review_nanni_n4115",
      "manufacturer": "Nanni",
      "model": "N4.115",
      "aliases": [],
      "variants": [
        "N4.115"
      ],
      "displayName": "Nanni N4.115",
      "ratedPowerHp": 115,
      "ratedPowerKw": 84.6,
      "ratedRpm": 2600,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "estimated_from_manufacturer_rated_fuel",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "DGBXXC01010B identifies exact unsuffixed N4.115 crankshaft power and rated speed; mechanical direct injection, M4. Do not substitute N4.115 E, N4.140 or another same-power model. This is an engine-document reference, not evidence of an installed boat's generation or load.",
        "Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 1
        },
        {
          "rpm": 1000,
          "lph": 1.371
        },
        {
          "rpm": 1100,
          "lph": 1.825
        },
        {
          "rpm": 1200,
          "lph": 2.369
        },
        {
          "rpm": 1300,
          "lph": 3.013
        },
        {
          "rpm": 1400,
          "lph": 3.763
        },
        {
          "rpm": 1500,
          "lph": 4.628
        },
        {
          "rpm": 1600,
          "lph": 5.616
        },
        {
          "rpm": 1700,
          "lph": 6.737
        },
        {
          "rpm": 1800,
          "lph": 7.997
        },
        {
          "rpm": 1900,
          "lph": 9.405
        },
        {
          "rpm": 2000,
          "lph": 10.97
        },
        {
          "rpm": 2100,
          "lph": 12.699
        },
        {
          "rpm": 2200,
          "lph": 14.6
        },
        {
          "rpm": 2300,
          "lph": 16.683
        },
        {
          "rpm": 2400,
          "lph": 18.955
        },
        {
          "rpm": 2500,
          "lph": 21.425
        },
        {
          "rpm": 2600,
          "lph": 24.1
        }
      ],
      "fuelReferenceSource": {
        "title": "Nanni Product Guide, DGBXXC03001K 012024",
        "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
        "kind": "manufacturer-document",
        "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
        "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
        "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
        "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
      },
      "curveAssumptions": {
        "loadExponent": 3,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 24.1,
        "ratedFuelSourceId": "all-nanni-nanni-product-guide-012024",
        "formula": "max(minimumFuelLph, ratedFuelLph * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "review_nanni_n4115",
        "manufacturer": "Nanni",
        "model": "N4.115",
        "manufacturerRatedPowerKw": 84.6,
        "manufacturerRatedRpm": 2600,
        "warning": false,
        "warningNote": "",
        "note": "DGBXXC01010B identifies exact unsuffixed N4.115 crankshaft power and rated speed; mechanical direct injection, M4. Do not substitute N4.115 E, N4.140 or another same-power model. This is an engine-document reference, not evidence of an installed boat's generation or load. Only the rated-power endpoint is published numeric fuel evidence, with the manufacturer's +/-5% tolerance. Intermediate points use an assumed cubic load/fuel shape and a 0.45 L/h minimum, not a manufacturer operating curve or boat measurement. No BSFC/density conversion is used for this method. RPM alone does not establish load; confirm the installed generation and observe the manufacturer's duty limits.",
        "sources": [
          {
            "title": "Nanni N4.115 propulsion-engine leaflet, DGBXXC01010B",
            "url": "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01010B_N4.115-2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC01010B; no issue date established",
            "locator": "PDF page 1: Power at crankshaft, Rated speed, Idling speed and fuel-system rows; page 2: document code",
            "evidence": "Exact unsuffixed N4.115: crankshaft 84.6 kW [115 hp], rated 2600 RPM, idle 825 RPM. Kubota 3.769-litre turbo/intercooled diesel with mechanical direct injection; M4. No equivalence to N4.115 E is assumed.",
            "access": "Manufacturer-hosted PDF opened; full specification page and graphical-curve text extracted on 2026-10-17. No numerical points read from its charts."
          },
          {
            "title": "Nanni Product Guide, DGBXXC03001K 012024",
            "url": "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf",
            "kind": "manufacturer-document",
            "edition": "DGBXXC03001K 012024, as printed inside the PDF; the URL filename differs",
            "locator": "PDF page 7 / printed 5: performance definitions; PDF pages 23, 26, 27, 29 / printed 21, 24, 25, 27: model performance tables",
            "evidence": "ISO 8665-1 performance tables define l/h as maximum fuel consumption at rated engine speed, tolerance +/-5%. Rows list N3.30: 21.3 kW, 29 hp, 3600 RPM, 7.4 l/h, M5; N4.50: 35.4 kW, 47.5 hp, 2800 RPM, 11.7 l/h, M4; N4.65: 43.4 kW, 59 hp, 2700 RPM, 13.5 l/h, M4; N4.115: 84.6 kW, 115 hp, 2600 RPM, 24.1 l/h, M4.",
            "access": "Manufacturer-hosted PDF opened and text extracted; performance-definition page and all four relevant table pages rendered and visually inspected in memory on 2026-10-17. No source files saved."
          }
        ]
      }
    },
    {
      "id": "review_nanni_n330",
      "manufacturer": "Nanni",
      "model": "N3.30",
      "aliases": [],
      "variants": [
        "N3.30"
      ],
      "displayName": "Nanni N3.30",
      "ratedPowerHp": 29,
      "ratedPowerKw": 21.3,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Edition-specific N3.30 manufacturer fuel graph, brochure 150715-ENG, 21.3 kW / 3600 RPM, explicitly calculated propeller-load exponent 3. Same nominal power/RPM, Kubota 1.123 L, 78 x 78.4 mm and 24:1 compression as the current leaflet. This is a representative edition reference, not confirmation of the exact installed Bali Catsmart calibration or every model year. The older brochure prints 65 Nm and different emissions compliance versus 64 Nm in the current leaflet; no serial-number changeover is established. No blending with the 23.5:1 manual table, rescaling or extrapolation below the visible 1200 RPM start. Both catamaran engines are included.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.26
        },
        {
          "rpm": 1400,
          "lph": 0.4
        },
        {
          "rpm": 1600,
          "lph": 0.57
        },
        {
          "rpm": 1800,
          "lph": 0.79
        },
        {
          "rpm": 2000,
          "lph": 1.07
        },
        {
          "rpm": 2200,
          "lph": 1.4
        },
        {
          "rpm": 2400,
          "lph": 1.82
        },
        {
          "rpm": 2600,
          "lph": 2.36
        },
        {
          "rpm": 2800,
          "lph": 3.01
        },
        {
          "rpm": 3000,
          "lph": 3.82
        },
        {
          "rpm": 3200,
          "lph": 4.82
        },
        {
          "rpm": 3400,
          "lph": 6
        },
        {
          "rpm": 3600,
          "lph": 7.38
        }
      ],
      "fuelReferenceSource": {
        "title": "Nanni marine engine Brochure N3.30, original manufacturer brochure with Nanni Diesel Australia contact block",
        "url": "https://www.nannidiesel.com.au/wp-content/uploads/2019/01/Brochure-N3.30.pdf",
        "sha256": "3572cc5afcebbc88c8c6adaa36ac918d1f3692dbad7b63ccba345f9b30ef3b3e",
        "page": 2,
        "edition": "150715-ENG, printed on page 2; not dated from hosting directory",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "ratingReview": {
        "referenceId": "review_nanni_n330",
        "manufacturer": "Nanni",
        "model": "N3.30",
        "manufacturerRatedPowerKw": 21.3,
        "manufacturerRatedRpm": 3600,
        "note": "Edition-specific N3.30 manufacturer fuel graph, brochure 150715-ENG, 21.3 kW / 3600 RPM, explicitly calculated propeller-load exponent 3. Same nominal power/RPM, Kubota 1.123 L, 78 x 78.4 mm and 24:1 compression as the current leaflet. This is a representative edition reference, not confirmation of the exact installed Bali Catsmart calibration or every model year. The older brochure prints 65 Nm and different emissions compliance versus 64 Nm in the current leaflet; no serial-number changeover is established. No blending with the 23.5:1 manual table, rescaling or extrapolation below the visible 1200 RPM start. Both catamaran engines are included.",
        "sources": [
          {
            "title": "Nanni marine engine Brochure N3.30, original manufacturer brochure with Nanni Diesel Australia contact block",
            "url": "https://www.nannidiesel.com.au/wp-content/uploads/2019/01/Brochure-N3.30.pdf",
            "sha256": "3572cc5afcebbc88c8c6adaa36ac918d1f3692dbad7b63ccba345f9b30ef3b3e",
            "page": 2,
            "edition": "150715-ENG, printed on page 2; not dated from hosting directory",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "estimated_from_manufacturer_rated_fuel",
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "N3.30",
        "sourceCurveId": "nanni_n330_21_3kw_150715",
        "sourceRatedPowerKw": 21.3,
        "sourceEdition": "150715-ENG, printed on page 2; not dated from hosting directory",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Edition-specific N3.30 manufacturer fuel graph, brochure 150715-ENG, 21.3 kW / 3600 RPM, explicitly calculated propeller-load exponent 3. Same nominal power/RPM, Kubota 1.123 L, 78 x 78.4 mm and 24:1 compression as the current leaflet. This is a representative edition reference, not confirmation of the exact installed Bali Catsmart calibration or every model year. The older brochure prints 65 Nm and different emissions compliance versus 64 Nm in the current leaflet; no serial-number changeover is established. No blending with the 23.5:1 manual table, rescaling or extrapolation below the visible 1200 RPM start. Both catamaran engines are included."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "printed-axis-calibrated-native-PDF-vector-polyline",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "3572cc5afcebbc88c8c6adaa36ac918d1f3692dbad7b63ccba345f9b30ef3b3e",
        "sourcePage": 2
      }
    },
    {
      "id": "review_man_i6730",
      "manufacturer": "MAN",
      "model": "i6 730",
      "aliases": [],
      "variants": [
        "i6 730"
      ],
      "displayName": "MAN i6 730",
      "ratedPowerHp": 730,
      "ratedPowerKw": 537,
      "ratedRpm": 2300,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "MAN i6-730 original hourly fuel graph, 537 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; no load exponent or publication date is inferred. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. Do not blend older calibration sheets or rescale the plotted fuel readings.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 800,
          "lph": 11.3
        },
        {
          "rpm": 900,
          "lph": 14.4
        },
        {
          "rpm": 1000,
          "lph": 18.3
        },
        {
          "rpm": 1100,
          "lph": 22.6
        },
        {
          "rpm": 1200,
          "lph": 28
        },
        {
          "rpm": 1300,
          "lph": 33.7
        },
        {
          "rpm": 1400,
          "lph": 40.1
        },
        {
          "rpm": 1500,
          "lph": 47.3
        },
        {
          "rpm": 1600,
          "lph": 54.5
        },
        {
          "rpm": 1700,
          "lph": 63
        },
        {
          "rpm": 1800,
          "lph": 72.1
        },
        {
          "rpm": 1900,
          "lph": 83.5
        },
        {
          "rpm": 2000,
          "lph": 96.3
        },
        {
          "rpm": 2100,
          "lph": 112
        },
        {
          "rpm": 2200,
          "lph": 127.9
        },
        {
          "rpm": 2291,
          "lph": 144.4
        }
      ],
      "fuelReferenceSource": {
        "title": "MAN Engines - High speed engines for pleasure boats - Marine",
        "url": "https://www.ariexpo.gr/images/user/Marine/Engines/Marine_Pleasure_EN_180607_MAN.pdf",
        "sha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
        "page": 19,
        "edition": "D 114.632 - wd 07213",
        "issueDate": null,
        "issueDateNote": "Printed issue date not established. Neither the URL's 180607 nor PDF metadata is treated as an issue date.",
        "locator": "PDF page 19, fuel consumption graph"
      },
      "ratingReview": {
        "referenceId": "review_man_i6730",
        "manufacturer": "MAN",
        "model": "i6 730",
        "manufacturerRatedPowerKw": 537,
        "manufacturerRatedRpm": 2300,
        "note": "MAN i6-730 original hourly fuel graph, 537 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; no load exponent or publication date is inferred. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. Do not blend older calibration sheets or rescale the plotted fuel readings.",
        "sources": [
          {
            "title": "MAN Engines - High speed engines for pleasure boats - Marine",
            "url": "https://www.ariexpo.gr/images/user/Marine/Engines/Marine_Pleasure_EN_180607_MAN.pdf",
            "sha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
            "page": 19,
            "edition": "D 114.632 - wd 07213",
            "issueDate": null,
            "issueDateNote": "Printed issue date not established. Neither the URL's 180607 nor PDF metadata is treated as an issue date.",
            "locator": "PDF page 19, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "estimated_from_manufacturer_rated_fuel",
      "curveConditions": {
        "loadExponent": null,
        "basis": "manufacturer calculated propeller load",
        "loadBasis": "manufacturer_explicit_propeller_load",
        "loadConditionNote": "The lower i6-730 Absolute fuel consumption panel explicitly labels its blue trace Propeller curve; a load exponent is not printed. No exponent is inferred from another edition, from power, or from the plotted shape.",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "i6-730",
        "sourceCurveId": "man_i6_730_d114632_wd07213",
        "sourceRatedPowerKw": 537,
        "sourceEdition": "D 114.632 - wd 07213",
        "applicability": "model-specific",
        "applicabilityNote": "MAN i6-730 original hourly fuel graph, 537 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; no load exponent or publication date is inferred. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. Do not blend older calibration sheets or rescale the plotted fuel readings."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-vector-polyline",
        "uncertaintyLph": 2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
        "sourcePage": 19
      }
    },
    {
      "id": "review_man_i6850",
      "manufacturer": "MAN",
      "model": "i6-850",
      "aliases": [],
      "variants": [
        "i6-850"
      ],
      "displayName": "MAN i6-850",
      "ratedPowerHp": 850,
      "ratedPowerKw": 625,
      "ratedRpm": 2300,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "MAN i6-850 original hourly fuel graph, 625 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; exponent and printed issue date are not established. The plotted upper fuel endpoint differs from the adjacent rating table and is imported as drawn, not forced to 163 L/h. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. No older-edition blending or power-rescaling.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 800,
          "lph": 12.8
        },
        {
          "rpm": 900,
          "lph": 16.2
        },
        {
          "rpm": 1000,
          "lph": 21.1
        },
        {
          "rpm": 1100,
          "lph": 26.3
        },
        {
          "rpm": 1200,
          "lph": 32.9
        },
        {
          "rpm": 1300,
          "lph": 40.6
        },
        {
          "rpm": 1400,
          "lph": 48.9
        },
        {
          "rpm": 1500,
          "lph": 57.5
        },
        {
          "rpm": 1600,
          "lph": 66.7
        },
        {
          "rpm": 1700,
          "lph": 77.1
        },
        {
          "rpm": 1800,
          "lph": 89.6
        },
        {
          "rpm": 1900,
          "lph": 104.5
        },
        {
          "rpm": 2000,
          "lph": 120.1
        },
        {
          "rpm": 2100,
          "lph": 135.8
        },
        {
          "rpm": 2200,
          "lph": 150.6
        },
        {
          "rpm": 2293,
          "lph": 166
        }
      ],
      "fuelReferenceSource": {
        "title": "MAN Engines - High speed engines for pleasure boats - Marine",
        "url": "https://www.ariexpo.gr/images/user/Marine/Engines/Marine_Pleasure_EN_180607_MAN.pdf",
        "sha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
        "page": 19,
        "edition": "D 114.632 - wd 07213",
        "issueDate": null,
        "issueDateNote": "Printed issue date not established. Neither the URL's 180607 nor PDF metadata is treated as an issue date.",
        "locator": "PDF page 19, fuel consumption graph"
      },
      "ratingReview": {
        "referenceId": "review_man_i6850",
        "manufacturer": "MAN",
        "model": "i6-850",
        "manufacturerRatedPowerKw": 625,
        "manufacturerRatedRpm": 2300,
        "note": "MAN i6-850 original hourly fuel graph, 625 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; exponent and printed issue date are not established. The plotted upper fuel endpoint differs from the adjacent rating table and is imported as drawn, not forced to 163 L/h. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. No older-edition blending or power-rescaling.",
        "sources": [
          {
            "title": "MAN Engines - High speed engines for pleasure boats - Marine",
            "url": "https://www.ariexpo.gr/images/user/Marine/Engines/Marine_Pleasure_EN_180607_MAN.pdf",
            "sha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
            "page": 19,
            "edition": "D 114.632 - wd 07213",
            "issueDate": null,
            "issueDateNote": "Printed issue date not established. Neither the URL's 180607 nor PDF metadata is treated as an issue date.",
            "locator": "PDF page 19, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "estimated_from_manufacturer_rated_fuel",
      "curveConditions": {
        "loadExponent": null,
        "basis": "manufacturer calculated propeller load",
        "loadBasis": "manufacturer_explicit_propeller_load",
        "loadConditionNote": "The lower i6-850 Absolute fuel consumption panel explicitly labels its blue trace Propeller curve; a load exponent is not printed. No exponent is inferred from another edition, from power, or from the plotted shape.",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "i6-850",
        "sourceCurveId": "man_i6_850_d114632_wd07213",
        "sourceRatedPowerKw": 625,
        "sourceEdition": "D 114.632 - wd 07213",
        "applicability": "model-specific",
        "applicabilityNote": "MAN i6-850 original hourly fuel graph, 625 kW / 2300 RPM, brochure D 114.632 - wd 07213, page 19. The trace explicitly states Propeller curve; exponent and printed issue date are not established. The plotted upper fuel endpoint differs from the adjacent rating table and is imported as drawn, not forced to 163 L/h. Light-duty pleasure-boat reference, not unrestricted continuous power or a measured Sunreef trial. No older-edition blending or power-rescaling."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-vector-polyline",
        "uncertaintyLph": 2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "bfb75d65bda1d452e8bc3db89415bfd0025d7720cad4bb864b3069c3a3601e4e",
        "sourcePage": 19
      }
    },
    {
      "id": "review_johndeere_powertech6068tfm50",
      "manufacturer": "John Deere",
      "model": "PowerTech 6068TFM50",
      "aliases": [],
      "variants": [
        "PowerTech 6068TFM50"
      ],
      "displayName": "John Deere PowerTech 6068TFM50",
      "ratedPowerHp": 228.4,
      "ratedPowerKw": 168,
      "ratedRpm": 2600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_numeric_load_table",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Representative manufacturer M4 reference for the sailing Sunreef 70 n+1 documented twin 6068TFM50 M4 installation: 168 kW / 2600 RPM. Uses the May 2001 manufacturer typical-propeller-load table, curve 6068TFM50225M4, not an endpoint-shaped estimate. The 44.3 L/h propeller endpoint and separate 46.8 L/h Fuel System field coexist in this same sheet and are not blended or treated as a calibration conflict on that fact alone.",
        "Representative older M4 source, not verified as the installed serial-number calibration, 16FA/16FB option or cooling arrangement. The source is based on a keel-cooled engine. Exact published points only, linear interpolation within 1000-2600 RPM and no extrapolation. The source does not print a 2100-RPM row. Not a boat trial, generator, M3/M2 rating or Sunreef 70 Power. The M4 full-power duty limit is one hour in twelve; 2600 RPM is not an unrestricted continuous cruising recommendation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 2.9
        },
        {
          "rpm": 1200,
          "lph": 4.8
        },
        {
          "rpm": 1400,
          "lph": 7.2
        },
        {
          "rpm": 1600,
          "lph": 10.4
        },
        {
          "rpm": 1800,
          "lph": 14.4
        },
        {
          "rpm": 2000,
          "lph": 19.5
        },
        {
          "rpm": 2200,
          "lph": 25.9
        },
        {
          "rpm": 2300,
          "lph": 29.7
        },
        {
          "rpm": 2400,
          "lph": 34
        },
        {
          "rpm": 2500,
          "lph": 38.8
        },
        {
          "rpm": 2600,
          "lph": 44.3
        }
      ],
      "referenceScope": "representative-manufacturer-rating",
      "manufacturerReferenceModel": "6068TFM50 M4, 168 kW / 2600 RPM, May 2001, option 16FA/16FB",
      "fuelReferenceSource": {
        "title": "John Deere PowerTech 6.8 L Engine - Engine Performance Curve 6068TFM50225M4, May 2001",
        "url": "https://aksaeurope.com/Content/Front/images/marin/168kW-2600rpm.pdf#page=2",
        "kind": "manufacturer-document",
        "sha256": "970f60497fbcea9730f6b1a55d0ede7698da86f5eb88a5a49a6090d6badc665a",
        "page": 2,
        "edition": "May 2001; certified 21 May 2001; curve 6068TFM50225M4",
        "locator": "PDF page 2, Fuel Consumption for Typical Propeller Curve, Prop Fuel gal/hr(L/hr); M4 identity on page 1",
        "evidence": "Eleven printed RPM / L/hr rows, 1000-2600 RPM, copied exactly without converting rounded gallon values. M4 168 kW / 2600 RPM; option 16FA/16FB; keel-cooled basis. The 44.3 L/h propeller-load endpoint is distinct from the separate 46.8 L/h Fuel System field in this same sheet.",
        "access": "Original manufacturer-authored PDF on engine-dealer mirror, privately recovered and full pages visually reviewed 2026-10-18."
      },
      "curveConditions": {
        "loadExponent": null,
        "sourceId": "deere-6068tfm50-m4-propeller-table-2001",
        "loadBasis": "manufacturer_explicit_propeller_load",
        "loadConditionNote": "The table explicitly states Fuel Consumption for Typical Propeller Curve and Prop Fuel. A load exponent is not printed and is not inferred from the shape or power column.",
        "boatMeasurement": false,
        "extrapolation": "none"
      },
      "ratingReview": {
        "referenceId": "review_johndeere_powertech6068tfm50",
        "manufacturer": "John Deere",
        "model": "PowerTech 6068TFM50",
        "manufacturerRatedPowerKw": 168,
        "manufacturerRatedRpm": 2600,
        "warning": true,
        "warningNote": "Rating assumption: Representative manufacturer M4 reference for the sailing Sunreef 70 n+1 documented twin 6068TFM50 M4 installation: 168 kW / 2600 RPM. Uses the May 2001 manufacturer typical-propeller-load table, curve 6068TFM50225M4, not an endpoint-shaped estimate. The 44.3 L/h propeller endpoint and separate 46.8 L/h Fuel System field coexist in this same sheet and are not blended or treated as a calibration conflict on that fact alone.",
        "note": "Representative manufacturer M4 reference for the sailing Sunreef 70 n+1 documented twin 6068TFM50 M4 installation: 168 kW / 2600 RPM. Uses the May 2001 manufacturer typical-propeller-load table, curve 6068TFM50225M4, not an endpoint-shaped estimate. The 44.3 L/h propeller endpoint and separate 46.8 L/h Fuel System field coexist in this same sheet and are not blended or treated as a calibration conflict on that fact alone. Representative older M4 source, not verified as the installed serial-number calibration, 16FA/16FB option or cooling arrangement. The source is based on a keel-cooled engine. Exact published points only, linear interpolation within 1000-2600 RPM and no extrapolation. The source does not print a 2100-RPM row. Not a boat trial, generator, M3/M2 rating or Sunreef 70 Power. The M4 full-power duty limit is one hour in twelve; 2600 RPM is not an unrestricted continuous cruising recommendation.",
        "sources": [
          {
            "title": "John Deere PowerTech 6.8 L Engine - Engine Performance Curve 6068TFM50225M4, May 2001",
            "url": "https://aksaeurope.com/Content/Front/images/marin/168kW-2600rpm.pdf#page=2",
            "kind": "manufacturer-document",
            "sha256": "970f60497fbcea9730f6b1a55d0ede7698da86f5eb88a5a49a6090d6badc665a",
            "page": 2,
            "edition": "May 2001; certified 21 May 2001; curve 6068TFM50225M4",
            "locator": "PDF page 2, Fuel Consumption for Typical Propeller Curve, Prop Fuel gal/hr(L/hr); M4 identity on page 1",
            "evidence": "Eleven printed RPM / L/hr rows, 1000-2600 RPM, copied exactly without converting rounded gallon values. M4 168 kW / 2600 RPM; option 16FA/16FB; keel-cooled basis. The 44.3 L/h propeller-load endpoint is distinct from the separate 46.8 L/h Fuel System field in this same sheet.",
            "access": "Original manufacturer-authored PDF on engine-dealer mirror, privately recovered and full pages visually reviewed 2026-10-18."
          },
          {
            "title": "John Deere PowerTech 6068TFM50 Marine Propulsion Engine Specifications, April 2017",
            "url": "https://www.deere.ca/assets/pdfs/common/industries/engines-and-drivetrain/specsheets/6068tfm50_c.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1, Engine Specifications, M4 row; page 2, M-rating limits and 17-04 publication footer",
            "evidence": "M4 explicitly pairs 168 kW / 225 bhp with 2600 RPM and 46.8 L/h rated fuel consumption. M4 typical full-power operation is one hour in twelve. The M2 row has a different rating and must not be used as an M4 curve.",
            "access": "PDF linked by the current John Deere 6068TFM50 product page, retrieved and parsed on 2026-10-17."
          },
          {
            "title": "John Deere 6068TFM50 Marine Propulsion Engine",
            "url": "https://www.deere.ca/en/marine-engines/propulsion/powertech-6-8l-6068tfm50/",
            "kind": "manufacturer-document",
            "locator": "Engine Specifications: M4 row",
            "evidence": "Current manufacturer page corroborates 168 kW, 2600 RPM and rated fuel consumption 46.8 L/h for the M4 rating.",
            "access": "Full manufacturer page retrieved on 2026-10-17."
          },
          {
            "title": "John Deere Marine Engines brochure DSWC20",
            "url": "https://www.deere.com/assets/pdfs/common/industries/engines-and-drivetrain/brochures/marine-engines-brochure-dswc20.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 5 (zero-based 4), 6068TFM50 M4 row",
            "evidence": "Separate manufacturer brochure prints 168 kW, 2600 RPM and 44.3 L/h for M4. The 44.3/46.8 L/h publication discrepancy is retained; no serial-number or calibration changeover was established.",
            "access": "Manufacturer-hosted PDF table retrieved on 2026-10-17; conflicting value not averaged."
          }
        ]
      }
    },
    {
      "id": "review_yanmar_4jh3hte",
      "manufacturer": "Yanmar",
      "model": "4JH3-HTE",
      "aliases": [],
      "variants": [
        "4JH3-HTE"
      ],
      "displayName": "Yanmar 4JH3-HTE",
      "ratedPowerHp": 100.1,
      "ratedPowerKw": 73.6,
      "ratedRpm": 3800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "4JH3-HTE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 73.6 kW / 3800 RPM; brochure rounded 74 kW), not the former 71.4 kW ISO 8665 / 40 C estimate. No power-rescaling. Not a later 4JH4-HTE graph or measured boat fuel use.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 2000,
          "lph": 4.4
        },
        {
          "rpm": 2100,
          "lph": 4.8
        },
        {
          "rpm": 2200,
          "lph": 5.35
        },
        {
          "rpm": 2300,
          "lph": 5.95
        },
        {
          "rpm": 2400,
          "lph": 6.55
        },
        {
          "rpm": 2500,
          "lph": 7.2
        },
        {
          "rpm": 2600,
          "lph": 7.85
        },
        {
          "rpm": 2700,
          "lph": 8.5
        },
        {
          "rpm": 2800,
          "lph": 9.2
        },
        {
          "rpm": 2900,
          "lph": 10
        },
        {
          "rpm": 3000,
          "lph": 10.85
        },
        {
          "rpm": 3100,
          "lph": 11.85
        },
        {
          "rpm": 3200,
          "lph": 12.9
        },
        {
          "rpm": 3300,
          "lph": 14
        },
        {
          "rpm": 3400,
          "lph": 15.15
        },
        {
          "rpm": 3500,
          "lph": 16.4
        },
        {
          "rpm": 3600,
          "lph": 17.9
        },
        {
          "rpm": 3700,
          "lph": 19.5
        },
        {
          "rpm": 3800,
          "lph": 21.15
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh3hte",
        "manufacturer": "Yanmar",
        "model": "4JH3-HTE",
        "manufacturerRatedPowerKw": 73.6,
        "manufacturerRatedRpm": 3800,
        "note": "4JH3-HTE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 73.6 kW / 3800 RPM; brochure rounded 74 kW), not the former 71.4 kW ISO 8665 / 40 C estimate. No power-rescaling. Not a later 4JH4-HTE graph or measured boat fuel use.",
        "sources": [
          {
            "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
            "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
            "page": 1,
            "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
        "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
        "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
        "page": 1,
        "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH3HTE",
        "sourceCurveId": "yanmar_4jh3hte_2002_iso3046",
        "sourceRatedPowerKw": 73.6,
        "sourceEdition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
        "applicability": "model-specific",
        "applicabilityNote": "4JH3-HTE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 73.6 kW / 3800 RPM; brochure rounded 74 kW), not the former 71.4 kW ISO 8665 / 40 C estimate. No power-rescaling. Not a later 4JH4-HTE graph or measured boat fuel use."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-one-bit-raster-centerline",
        "uncertaintyLph": 0.3,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
        "sourcePage": 1
      }
    },
    {
      "id": "review_yanmar_4jh4e",
      "manufacturer": "Yanmar",
      "model": "4JH4E",
      "aliases": [],
      "variants": [
        "4JH4E"
      ],
      "displayName": "Yanmar 4JH4E",
      "ratedPowerHp": 53.8,
      "ratedPowerKw": 39.6,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "extrapolated_from_rated_power",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Selected ISO 8665 maximum crankshaft rating at 40 C; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not confuse 4JH4E with 4JH4AE, 4JH5E or turbo variants.",
        "Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.496
        },
        {
          "rpm": 1100,
          "lph": 0.661
        },
        {
          "rpm": 1200,
          "lph": 0.858
        },
        {
          "rpm": 1300,
          "lph": 1.091
        },
        {
          "rpm": 1400,
          "lph": 1.362
        },
        {
          "rpm": 1500,
          "lph": 1.675
        },
        {
          "rpm": 1600,
          "lph": 2.033
        },
        {
          "rpm": 1700,
          "lph": 2.439
        },
        {
          "rpm": 1800,
          "lph": 2.895
        },
        {
          "rpm": 1900,
          "lph": 3.405
        },
        {
          "rpm": 2000,
          "lph": 3.971
        },
        {
          "rpm": 2100,
          "lph": 4.598
        },
        {
          "rpm": 2200,
          "lph": 5.286
        },
        {
          "rpm": 2300,
          "lph": 6.04
        },
        {
          "rpm": 2400,
          "lph": 6.863
        },
        {
          "rpm": 2500,
          "lph": 7.757
        },
        {
          "rpm": 2600,
          "lph": 8.725
        },
        {
          "rpm": 2700,
          "lph": 9.771
        },
        {
          "rpm": 2800,
          "lph": 10.898
        },
        {
          "rpm": 2900,
          "lph": 12.108
        },
        {
          "rpm": 3000,
          "lph": 13.404
        }
      ],
      "curveAssumptions": {
        "loadExponent": 3,
        "bsfcGramsPerKwh": 285,
        "dieselDensityKgPerLitre": 0.842,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 13.403800475059382,
        "formula": "max(minimumFuelLph, ratedPowerKw * bsfcGramsPerKwh / 1000 / dieselDensityKgPerLitre * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4e",
        "manufacturer": "Yanmar",
        "model": "4JH4E",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "warning": true,
        "warningNote": "Rating assumption: Selected ISO 8665 maximum crankshaft rating at 40 C; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not confuse 4JH4E with 4JH4AE, 4JH5E or turbo variants.",
        "note": "Selected ISO 8665 maximum crankshaft rating at 40 C; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not confuse 4JH4E with 4JH4AE, 4JH5E or turbo variants. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Yanmar type 4JH4E - The Powerful Gem",
            "url": "https://irp.cdn-website.com/76471e1f/files/uploaded/4JH4E_%2854hp%29TechData.pdf",
            "kind": "manufacturer-document",
            "provenance": "Original Yanmar-branded two-page brochure on a third-party CDN mirror; publication date not established.",
            "locator": "PDF page 1: Maximum output at crankshaft, continuous rating and the two fuel-temperature footnotes.",
            "evidence": "Maximum crankshaft power is 40.5 kW/3000 RPM at 25 C under ISO 3046-1, or 39.6/3000 at 40 C under ISO 8665. Continuous power is 36.8/2907. These are documented rating-condition alternatives, not suffix equivalence inferred from horsepower.",
            "access": "HTTP 200 PDF downloaded into memory; specification text extracted and corroborated with Yanmar service-manual reproduction.",
            "sha256": "629a68c60d73a4d58fdc8a7fe897de24e695d8783a03443cb286974fb551bd6c"
          }
        ]
      }
    },
    {
      "id": "review_yanmar_4jh5e",
      "manufacturer": "Yanmar",
      "model": "4JH5E",
      "aliases": [],
      "variants": [
        "4JH5E"
      ],
      "displayName": "Yanmar 4JH5E",
      "ratedPowerHp": 53.8,
      "ratedPowerKw": 39.6,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 4JH5E manufacturer fuel graph, 39.6 kW / 3000 RPM. Uses the February 2021 sheet without blending earlier editions.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 1.9
        },
        {
          "rpm": 1700,
          "lph": 2.1
        },
        {
          "rpm": 1800,
          "lph": 2.4
        },
        {
          "rpm": 1900,
          "lph": 2.8
        },
        {
          "rpm": 2000,
          "lph": 3.2
        },
        {
          "rpm": 2100,
          "lph": 3.7
        },
        {
          "rpm": 2200,
          "lph": 4.2
        },
        {
          "rpm": 2300,
          "lph": 4.7
        },
        {
          "rpm": 2400,
          "lph": 5.2
        },
        {
          "rpm": 2500,
          "lph": 5.8
        },
        {
          "rpm": 2600,
          "lph": 6.5
        },
        {
          "rpm": 2700,
          "lph": 7.4
        },
        {
          "rpm": 2800,
          "lph": 8.4
        },
        {
          "rpm": 2900,
          "lph": 9.7
        },
        {
          "rpm": 3000,
          "lph": 10.9
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh5e",
        "manufacturer": "Yanmar",
        "model": "4JH5E",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "note": "Yanmar 4JH5E manufacturer fuel graph, 39.6 kW / 3000 RPM. Uses the February 2021 sheet without blending earlier editions.",
        "sources": [
          {
            "title": "Yanmar 4JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH5E_A4_022021_HR.pdf",
            "sha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
            "page": 2,
            "edition": "DS_4JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 4JH5E Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH5E_A4_022021_HR.pdf",
        "sha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
        "page": 2,
        "edition": "DS_4JH5E_A4_022021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH5E",
        "sourceCurveId": "4JH5E",
        "sourceRatedPowerKw": 39.6,
        "sourceEdition": "DS_4JH5E_A4_022021",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4JH5E manufacturer fuel graph, 39.6 kW / 3000 RPM. Uses the February 2021 sheet without blending earlier editions."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh4te",
      "manufacturer": "Yanmar",
      "model": "4JH4-TE",
      "aliases": [],
      "variants": [
        "4JH4-TE"
      ],
      "displayName": "Yanmar 4JH4-TE",
      "ratedPowerHp": 75.1,
      "ratedPowerKw": 55.2,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Yanmar 4JH4-TE manufacturer fuel graph, 55.2 kW / 3200 RPM, May 2022 sheet. Uses the fuel graph's stated load exponent, not an adjacent power chart or an older edition.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.8
        },
        {
          "rpm": 1300,
          "lph": 1
        },
        {
          "rpm": 1400,
          "lph": 1.2
        },
        {
          "rpm": 1500,
          "lph": 1.6
        },
        {
          "rpm": 1600,
          "lph": 2
        },
        {
          "rpm": 1700,
          "lph": 2.4
        },
        {
          "rpm": 1800,
          "lph": 2.8
        },
        {
          "rpm": 1900,
          "lph": 3.2
        },
        {
          "rpm": 2000,
          "lph": 3.7
        },
        {
          "rpm": 2100,
          "lph": 4.1
        },
        {
          "rpm": 2200,
          "lph": 4.7
        },
        {
          "rpm": 2300,
          "lph": 5.4
        },
        {
          "rpm": 2400,
          "lph": 6.1
        },
        {
          "rpm": 2500,
          "lph": 6.9
        },
        {
          "rpm": 2600,
          "lph": 7.7
        },
        {
          "rpm": 2700,
          "lph": 8.8
        },
        {
          "rpm": 2800,
          "lph": 10
        },
        {
          "rpm": 2900,
          "lph": 11.3
        },
        {
          "rpm": 3000,
          "lph": 12.7
        },
        {
          "rpm": 3100,
          "lph": 14.3
        },
        {
          "rpm": 3200,
          "lph": 16
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4te",
        "manufacturer": "Yanmar",
        "model": "4JH4-TE",
        "manufacturerRatedPowerKw": 55.2,
        "manufacturerRatedRpm": 3200,
        "note": "Yanmar 4JH4-TE manufacturer fuel graph, 55.2 kW / 3200 RPM, May 2022 sheet. Uses the fuel graph's stated load exponent, not an adjacent power chart or an older edition.",
        "sources": [
          {
            "title": "Yanmar 4JH4-TE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-TE_A4_052022_HR.pdf",
            "sha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
            "page": 2,
            "edition": "DS_4JH4-TE_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 4JH4-TE Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-TE_A4_052022_HR.pdf",
        "sha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
        "page": 2,
        "edition": "DS_4JH4-TE_A4_052022",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH4-TE",
        "sourceCurveId": "4JH4-TE",
        "sourceRatedPowerKw": 55.2,
        "sourceEdition": "DS_4JH4-TE_A4_052022",
        "applicability": "model-specific",
        "applicabilityNote": "Yanmar 4JH4-TE manufacturer fuel graph, 55.2 kW / 3200 RPM, May 2022 sheet. Uses the fuel graph's stated load exponent, not an adjacent power chart or an older edition."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh4tce",
      "manufacturer": "Yanmar",
      "model": "4JH4TCE",
      "aliases": [],
      "variants": [
        "4JH4TCE"
      ],
      "displayName": "Yanmar 4JH4TCE",
      "ratedPowerHp": 75.1,
      "ratedPowerKw": 55.2,
      "ratedRpm": 3200,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 55.2 kW / 3200 RPM 4JH4-TE base-engine manufacturer graph under the reviewed saildrive-family policy. The TCE installation is not separately certified by this graph.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1200,
          "lph": 0.8
        },
        {
          "rpm": 1300,
          "lph": 1
        },
        {
          "rpm": 1400,
          "lph": 1.2
        },
        {
          "rpm": 1500,
          "lph": 1.6
        },
        {
          "rpm": 1600,
          "lph": 2
        },
        {
          "rpm": 1700,
          "lph": 2.4
        },
        {
          "rpm": 1800,
          "lph": 2.8
        },
        {
          "rpm": 1900,
          "lph": 3.2
        },
        {
          "rpm": 2000,
          "lph": 3.7
        },
        {
          "rpm": 2100,
          "lph": 4.1
        },
        {
          "rpm": 2200,
          "lph": 4.7
        },
        {
          "rpm": 2300,
          "lph": 5.4
        },
        {
          "rpm": 2400,
          "lph": 6.1
        },
        {
          "rpm": 2500,
          "lph": 6.9
        },
        {
          "rpm": 2600,
          "lph": 7.7
        },
        {
          "rpm": 2700,
          "lph": 8.8
        },
        {
          "rpm": 2800,
          "lph": 10
        },
        {
          "rpm": 2900,
          "lph": 11.3
        },
        {
          "rpm": 3000,
          "lph": 12.7
        },
        {
          "rpm": 3100,
          "lph": 14.3
        },
        {
          "rpm": 3200,
          "lph": 16
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4tce",
        "manufacturer": "Yanmar",
        "model": "4JH4TCE",
        "manufacturerRatedPowerKw": 55.2,
        "manufacturerRatedRpm": 3200,
        "note": "Uses the 55.2 kW / 3200 RPM 4JH4-TE base-engine manufacturer graph under the reviewed saildrive-family policy. The TCE installation is not separately certified by this graph.",
        "sources": [
          {
            "title": "Yanmar 4JH4-TE Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-TE_A4_052022_HR.pdf",
            "sha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
            "page": 2,
            "edition": "DS_4JH4-TE_A4_052022",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 4JH4-TE Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-TE_A4_052022_HR.pdf",
        "sha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
        "page": 2,
        "edition": "DS_4JH4-TE_A4_052022",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH4-TE",
        "sourceCurveId": "4JH4-TE",
        "sourceRatedPowerKw": 55.2,
        "sourceEdition": "DS_4JH4-TE_A4_052022",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 55.2 kW / 3200 RPM 4JH4-TE base-engine manufacturer graph under the reviewed saildrive-family policy. The TCE installation is not separately certified by this graph."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "2832f82144e8f185254a07d87faeb416103f8ddfe50e525469a69dbc5a9c11ce",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_3gm30f",
      "manufacturer": "Yanmar",
      "model": "3GM30F",
      "aliases": [],
      "variants": [
        "3GM30F"
      ],
      "displayName": "Yanmar 3GM30F",
      "ratedPowerHp": 27.3,
      "ratedPowerKw": 20.1,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Exact 3GM30F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. Brochure rounded 20 kW and operation-manual precise 20.1 kW / 3600 RPM are distinguished; no fuel rescaling. Not FV/FC or 3YM30; actual installed-boat fuel use varies.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1800,
          "lph": 1.05
        },
        {
          "rpm": 1900,
          "lph": 1.2
        },
        {
          "rpm": 2000,
          "lph": 1.4
        },
        {
          "rpm": 2100,
          "lph": 1.55
        },
        {
          "rpm": 2200,
          "lph": 1.7
        },
        {
          "rpm": 2300,
          "lph": 1.9
        },
        {
          "rpm": 2400,
          "lph": 2.15
        },
        {
          "rpm": 2500,
          "lph": 2.35
        },
        {
          "rpm": 2600,
          "lph": 2.55
        },
        {
          "rpm": 2700,
          "lph": 2.8
        },
        {
          "rpm": 2800,
          "lph": 3
        },
        {
          "rpm": 2900,
          "lph": 3.3
        },
        {
          "rpm": 3000,
          "lph": 3.65
        },
        {
          "rpm": 3100,
          "lph": 4
        },
        {
          "rpm": 3200,
          "lph": 4.4
        },
        {
          "rpm": 3300,
          "lph": 4.85
        },
        {
          "rpm": 3400,
          "lph": 5.35
        },
        {
          "rpm": 3500,
          "lph": 5.9
        },
        {
          "rpm": 3600,
          "lph": 6.45
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_3gm30f",
        "manufacturer": "Yanmar",
        "model": "3GM30F",
        "manufacturerRatedPowerKw": 20.1,
        "manufacturerRatedRpm": 3600,
        "note": "Exact 3GM30F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. Brochure rounded 20 kW and operation-manual precise 20.1 kW / 3600 RPM are distinguished; no fuel rescaling. Not FV/FC or 3YM30; actual installed-boat fuel use varies.",
        "sources": [
          {
            "title": "Yanmar GM series manufacturer brochure, The Auxiliary Engine of Choice",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/123%20GM%20INBOARD.pdf",
            "sha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
            "page": 2,
            "edition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar GM series manufacturer brochure, The Auxiliary Engine of Choice",
        "url": "https://www.simplicity-marine.com/pdf/Yanmar/123%20GM%20INBOARD.pdf",
        "sha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
        "page": 2,
        "edition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "3GM30F",
        "sourceCurveId": "yanmar_3gm30f_2001",
        "sourceRatedPowerKw": 20.1,
        "sourceEdition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
        "applicability": "model-specific",
        "applicabilityNote": "Exact 3GM30F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. Brochure rounded 20 kW and operation-manual precise 20.1 kW / 3600 RPM are distinguished; no fuel rescaling. Not FV/FC or 3YM30; actual installed-boat fuel use varies."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-one-bit-raster-centerline",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh3e",
      "manufacturer": "Yanmar",
      "model": "4JH3E",
      "aliases": [],
      "variants": [
        "4JH3E"
      ],
      "displayName": "Yanmar 4JH3E",
      "ratedPowerHp": 56,
      "ratedPowerKw": 41.2,
      "ratedRpm": 3800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Exact naturally aspirated 4JH3E manufacturer graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0, ISO 3046-1 source conditions. Precise operation-manual 41.2 kW / 3800 RPM rating retained; brochure rounds to 41 kW. No fuel rescaling or substitution of TE/HTE/BE/WE graphs.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1900,
          "lph": 2
        },
        {
          "rpm": 2000,
          "lph": 2.25
        },
        {
          "rpm": 2100,
          "lph": 2.5
        },
        {
          "rpm": 2200,
          "lph": 2.8
        },
        {
          "rpm": 2300,
          "lph": 3.1
        },
        {
          "rpm": 2400,
          "lph": 3.4
        },
        {
          "rpm": 2500,
          "lph": 3.75
        },
        {
          "rpm": 2600,
          "lph": 4.15
        },
        {
          "rpm": 2700,
          "lph": 4.55
        },
        {
          "rpm": 2800,
          "lph": 4.95
        },
        {
          "rpm": 2900,
          "lph": 5.4
        },
        {
          "rpm": 3000,
          "lph": 5.9
        },
        {
          "rpm": 3100,
          "lph": 6.45
        },
        {
          "rpm": 3200,
          "lph": 7.1
        },
        {
          "rpm": 3300,
          "lph": 7.8
        },
        {
          "rpm": 3400,
          "lph": 8.55
        },
        {
          "rpm": 3500,
          "lph": 9.35
        },
        {
          "rpm": 3600,
          "lph": 10.3
        },
        {
          "rpm": 3700,
          "lph": 11.3
        },
        {
          "rpm": 3800,
          "lph": 12.4
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh3e",
        "manufacturer": "Yanmar",
        "model": "4JH3E",
        "manufacturerRatedPowerKw": 41.2,
        "manufacturerRatedRpm": 3800,
        "note": "Exact naturally aspirated 4JH3E manufacturer graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0, ISO 3046-1 source conditions. Precise operation-manual 41.2 kW / 3800 RPM rating retained; brochure rounds to 41 kW. No fuel rescaling or substitution of TE/HTE/BE/WE graphs.",
        "sources": [
          {
            "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
            "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
            "page": 1,
            "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
        "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
        "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
        "page": 1,
        "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH3E",
        "sourceCurveId": "yanmar_4jh3e_2002",
        "sourceRatedPowerKw": 41.2,
        "sourceEdition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
        "applicability": "model-specific",
        "applicabilityNote": "Exact naturally aspirated 4JH3E manufacturer graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0, ISO 3046-1 source conditions. Precise operation-manual 41.2 kW / 3800 RPM rating retained; brochure rounds to 41 kW. No fuel rescaling or substitution of TE/HTE/BE/WE graphs."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-one-bit-raster-centerline",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
        "sourcePage": 1
      }
    },
    {
      "id": "review_yanmar_2gm20f",
      "manufacturer": "Yanmar",
      "model": "2GM20F",
      "aliases": [],
      "variants": [
        "2GM20F"
      ],
      "displayName": "Yanmar 2GM20F",
      "ratedPowerHp": 18.2,
      "ratedPowerKw": 13.4,
      "ratedRpm": 3600,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Exact 2GM20F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. The brochure rounds power to 13 kW; the precise 13.4 kW / 3600 RPM operation-manual rating is retained. Fuel ordinates are digitized as printed, not power-rescaled. Not FV/FC or a boat test.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1800,
          "lph": 0.75
        },
        {
          "rpm": 1900,
          "lph": 0.9
        },
        {
          "rpm": 2000,
          "lph": 1
        },
        {
          "rpm": 2100,
          "lph": 1.1
        },
        {
          "rpm": 2200,
          "lph": 1.25
        },
        {
          "rpm": 2300,
          "lph": 1.4
        },
        {
          "rpm": 2400,
          "lph": 1.5
        },
        {
          "rpm": 2500,
          "lph": 1.7
        },
        {
          "rpm": 2600,
          "lph": 1.85
        },
        {
          "rpm": 2700,
          "lph": 2.05
        },
        {
          "rpm": 2800,
          "lph": 2.25
        },
        {
          "rpm": 2900,
          "lph": 2.4
        },
        {
          "rpm": 3000,
          "lph": 2.65
        },
        {
          "rpm": 3100,
          "lph": 2.85
        },
        {
          "rpm": 3200,
          "lph": 3.1
        },
        {
          "rpm": 3300,
          "lph": 3.35
        },
        {
          "rpm": 3400,
          "lph": 3.7
        },
        {
          "rpm": 3500,
          "lph": 4.05
        },
        {
          "rpm": 3600,
          "lph": 4.45
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_2gm20f",
        "manufacturer": "Yanmar",
        "model": "2GM20F",
        "manufacturerRatedPowerKw": 13.4,
        "manufacturerRatedRpm": 3600,
        "note": "Exact 2GM20F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. The brochure rounds power to 13 kW; the precise 13.4 kW / 3600 RPM operation-manual rating is retained. Fuel ordinates are digitized as printed, not power-rescaled. Not FV/FC or a boat test.",
        "sources": [
          {
            "title": "Yanmar GM series manufacturer brochure, The Auxiliary Engine of Choice",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/123%20GM%20INBOARD.pdf",
            "sha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
            "page": 2,
            "edition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar GM series manufacturer brochure, The Auxiliary Engine of Choice",
        "url": "https://www.simplicity-marine.com/pdf/Yanmar/123%20GM%20INBOARD.pdf",
        "sha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
        "page": 2,
        "edition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "2GM20F",
        "sourceCurveId": "yanmar_2gm20f_2001",
        "sourceRatedPowerKw": 13.4,
        "sourceEdition": "Printed footer: 60A123GM-4/01 10M, Printed in the USA",
        "applicability": "model-specific",
        "applicabilityNote": "Exact 2GM20F manufacturer fuel graph, GM brochure 60A123GM-4/01 10M, propeller-load exponent 3.0. The brochure rounds power to 13 kW; the precise 13.4 kW / 3600 RPM operation-manual rating is retained. Fuel ordinates are digitized as printed, not power-rescaled. Not FV/FC or a boat test."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-one-bit-raster-centerline",
        "uncertaintyLph": 0.2,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "0c5c511693923f92dd2424241ced0681a41e9822868916a19d3f2de8f3ac9bfc",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh3te",
      "manufacturer": "Yanmar",
      "model": "4JH3TE",
      "aliases": [],
      "variants": [
        "4JH3TE"
      ],
      "displayName": "Yanmar 4JH3TE",
      "ratedPowerHp": 75.1,
      "ratedPowerKw": 55.2,
      "ratedRpm": 3800,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "4JH3-TE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 55.2 kW / 3800 RPM; brochure rounded 55 kW), not the previously selected 53.5 kW ISO 8665 / 40 C estimate. Readings are not power-rescaled. Not a later 4JH4-TE graph or boat trial.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 2000,
          "lph": 3.55
        },
        {
          "rpm": 2100,
          "lph": 3.85
        },
        {
          "rpm": 2200,
          "lph": 4.3
        },
        {
          "rpm": 2300,
          "lph": 4.85
        },
        {
          "rpm": 2400,
          "lph": 5.35
        },
        {
          "rpm": 2500,
          "lph": 5.95
        },
        {
          "rpm": 2600,
          "lph": 6.45
        },
        {
          "rpm": 2700,
          "lph": 7.05
        },
        {
          "rpm": 2800,
          "lph": 7.65
        },
        {
          "rpm": 2900,
          "lph": 8.25
        },
        {
          "rpm": 3000,
          "lph": 8.95
        },
        {
          "rpm": 3100,
          "lph": 9.75
        },
        {
          "rpm": 3200,
          "lph": 10.55
        },
        {
          "rpm": 3300,
          "lph": 11.4
        },
        {
          "rpm": 3400,
          "lph": 12.25
        },
        {
          "rpm": 3500,
          "lph": 13.25
        },
        {
          "rpm": 3600,
          "lph": 14.45
        },
        {
          "rpm": 3700,
          "lph": 15.85
        },
        {
          "rpm": 3800,
          "lph": 17.3
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh3te",
        "manufacturer": "Yanmar",
        "model": "4JH3TE",
        "manufacturerRatedPowerKw": 55.2,
        "manufacturerRatedRpm": 3800,
        "note": "4JH3-TE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 55.2 kW / 3800 RPM; brochure rounded 55 kW), not the previously selected 53.5 kW ISO 8665 / 40 C estimate. Readings are not power-rescaled. Not a later 4JH4-TE graph or boat trial.",
        "sources": [
          {
            "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
            "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
            "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
            "page": 1,
            "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar JH3 series manufacturer brochure, Compact Mid-Range Marine Power Plants",
        "url": "https://www.simplicity-marine.com/pdf/Yanmar/JH.pdf",
        "sha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
        "page": 1,
        "edition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH3TE",
        "sourceCurveId": "yanmar_4jh3te_2002_iso3046",
        "sourceRatedPowerKw": 55.2,
        "sourceEdition": "Printed footer: 60AJH-5/02 8.45M, Printed in the USA; PDF creation metadata 2002-04-30",
        "applicability": "model-specific",
        "applicabilityNote": "4JH3-TE manufacturer fuel graph, JH3 brochure 60AJH-5/02 8.45M, propeller-load exponent 3.0. Uses source ISO 3046-1 / 25 C rating basis (precise 55.2 kW / 3800 RPM; brochure rounded 55 kW), not the previously selected 53.5 kW ISO 8665 / 40 C estimate. Readings are not power-rescaled. Not a later 4JH4-TE graph or boat trial."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-one-bit-raster-centerline",
        "uncertaintyLph": 0.25,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "349a12d08961f8c840c68d9d83175328bb79fb3439da2882165e195e0bc49a82",
        "sourcePage": 1
      }
    },
    {
      "id": "review_yanmar_4jh5ce",
      "manufacturer": "Yanmar",
      "model": "4JH5-CE",
      "aliases": [],
      "variants": [
        "4JH5-CE"
      ],
      "displayName": "Yanmar 4JH5-CE",
      "ratedPowerHp": 53.8,
      "ratedPowerKw": 39.6,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Uses the 39.6 kW / 3000 RPM 4JH5E base-engine manufacturer graph under the reviewed saildrive-family policy. The CE installation is not separately certified by this graph.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1600,
          "lph": 1.9
        },
        {
          "rpm": 1700,
          "lph": 2.1
        },
        {
          "rpm": 1800,
          "lph": 2.4
        },
        {
          "rpm": 1900,
          "lph": 2.8
        },
        {
          "rpm": 2000,
          "lph": 3.2
        },
        {
          "rpm": 2100,
          "lph": 3.7
        },
        {
          "rpm": 2200,
          "lph": 4.2
        },
        {
          "rpm": 2300,
          "lph": 4.7
        },
        {
          "rpm": 2400,
          "lph": 5.2
        },
        {
          "rpm": 2500,
          "lph": 5.8
        },
        {
          "rpm": 2600,
          "lph": 6.5
        },
        {
          "rpm": 2700,
          "lph": 7.4
        },
        {
          "rpm": 2800,
          "lph": 8.4
        },
        {
          "rpm": 2900,
          "lph": 9.7
        },
        {
          "rpm": 3000,
          "lph": 10.9
        }
      ],
      "ratingReview": {
        "referenceId": "review_yanmar_4jh5ce",
        "manufacturer": "Yanmar",
        "model": "4JH5-CE",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "note": "Uses the 39.6 kW / 3000 RPM 4JH5E base-engine manufacturer graph under the reviewed saildrive-family policy. The CE installation is not separately certified by this graph.",
        "sources": [
          {
            "title": "Yanmar 4JH5E Marine Diesel Engine - Performance Curves",
            "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH5E_A4_022021_HR.pdf",
            "sha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
            "page": 2,
            "edition": "DS_4JH5E_A4_022021",
            "locator": "PDF page 2, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Yanmar 4JH5E Marine Diesel Engine - Performance Curves",
        "url": "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH5E_A4_022021_HR.pdf",
        "sha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
        "page": 2,
        "edition": "DS_4JH5E_A4_022021",
        "locator": "PDF page 2, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 3,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "4JH5E",
        "sourceCurveId": "4JH5E",
        "sourceRatedPowerKw": 39.6,
        "sourceEdition": "DS_4JH5E_A4_022021",
        "applicability": "representative-base-engine",
        "applicabilityNote": "Uses the 39.6 kW / 3000 RPM 4JH5E base-engine manufacturer graph under the reviewed saildrive-family policy. The CE installation is not separately certified by this graph."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "axis-calibrated-native-PDF-raster-blue-centerline",
        "uncertaintyLph": 0.15,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "265b9b6f846f9a925746e1cee9eef39fee3a78447d8a62f0fdb37ed6464d1952",
        "sourcePage": 2
      }
    },
    {
      "id": "review_yanmar_4jh4ce",
      "manufacturer": "Yanmar",
      "model": "4JH4-CE",
      "aliases": [],
      "variants": [
        "4JH4-CE"
      ],
      "displayName": "Yanmar 4JH4-CE",
      "ratedPowerHp": 53.8,
      "ratedPowerKw": 39.6,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "extrapolated_from_rated_power",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Selected exact CE maximum crankshaft pair at 40 C under ISO 8665; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not substitute later 4JH4ACE or infer the actual boat's saildrive generation.",
        "Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.45
        },
        {
          "rpm": 1000,
          "lph": 0.496
        },
        {
          "rpm": 1100,
          "lph": 0.661
        },
        {
          "rpm": 1200,
          "lph": 0.858
        },
        {
          "rpm": 1300,
          "lph": 1.091
        },
        {
          "rpm": 1400,
          "lph": 1.362
        },
        {
          "rpm": 1500,
          "lph": 1.675
        },
        {
          "rpm": 1600,
          "lph": 2.033
        },
        {
          "rpm": 1700,
          "lph": 2.439
        },
        {
          "rpm": 1800,
          "lph": 2.895
        },
        {
          "rpm": 1900,
          "lph": 3.405
        },
        {
          "rpm": 2000,
          "lph": 3.971
        },
        {
          "rpm": 2100,
          "lph": 4.598
        },
        {
          "rpm": 2200,
          "lph": 5.286
        },
        {
          "rpm": 2300,
          "lph": 6.04
        },
        {
          "rpm": 2400,
          "lph": 6.863
        },
        {
          "rpm": 2500,
          "lph": 7.757
        },
        {
          "rpm": 2600,
          "lph": 8.725
        },
        {
          "rpm": 2700,
          "lph": 9.771
        },
        {
          "rpm": 2800,
          "lph": 10.898
        },
        {
          "rpm": 2900,
          "lph": 12.108
        },
        {
          "rpm": 3000,
          "lph": 13.404
        }
      ],
      "curveAssumptions": {
        "loadExponent": 3,
        "bsfcGramsPerKwh": 285,
        "dieselDensityKgPerLitre": 0.842,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 13.403800475059382,
        "formula": "max(minimumFuelLph, ratedPowerKw * bsfcGramsPerKwh / 1000 / dieselDensityKgPerLitre * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "review_yanmar_4jh4ce",
        "manufacturer": "Yanmar",
        "model": "4JH4-CE",
        "manufacturerRatedPowerKw": 39.6,
        "manufacturerRatedRpm": 3000,
        "warning": true,
        "warningNote": "Rating assumption: Selected exact CE maximum crankshaft pair at 40 C under ISO 8665; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not substitute later 4JH4ACE or infer the actual boat's saildrive generation.",
        "note": "Selected exact CE maximum crankshaft pair at 40 C under ISO 8665; planning-estimate input. Also published as 40.5 kW/3000 RPM at 25 C; continuous 36.8/2907. Do not substitute later 4JH4ACE or infer the actual boat's saildrive generation. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Yanmar Saildrive SD50 brochure, 2005",
            "url": "https://www.lsm-diesel.dk/2012/yanmar/tekn_data_pdf/sd-50_techdata.pdf",
            "kind": "manufacturer-document",
            "provenance": "Original four-page Yanmar brochure mirrored by LSM Diesel; page 4 copyright is 2005.",
            "locator": "PDF pages 2-3: shared specification-row labels and 4JH4CE x SD50 column; page 2 rating footnotes.",
            "evidence": "4JH4CE is explicitly named with SD50. Crankshaft maxima are 40.5 kW/3000 RPM at 25 C and 39.6/3000 at 40 C; continuous 36.8/2907. This old brochure's separate 4JH3-TCE column is not the later 4JH4-TCE model.",
            "access": "HTTP 200; complete PDF extracted in memory; PDF page 3 rendered and visually inspected."
          },
          {
            "title": "Yanmar Service Manual M9961-03E091, February 2004",
            "url": "https://www.manualslib.com/manual/3848325/Yanmar-4jh4ce.html?page=18",
            "kind": "manufacturer-document",
            "provenance": "Manufacturer service-manual pages reproduced by ManualsLib; revision history identifies the February 2004 new edition.",
            "locator": "Reproduction page 18, section 1.2(2), original printed page 3; official/internal model and marine-gear rows.",
            "evidence": "The 4JH4E series explicitly includes internal model 4JH4CE with SD40. The table separates crankshaft fuel-stop power from lower propeller-shaft power. The CE code is manufacturer-documented, not obtained by deleting letters.",
            "access": "Manufacturer table read through indexed page text. Column alignment independently corroborated by the original SD50 brochure's explicitly named 4JH4CE column."
          }
        ]
      }
    },
    {
      "id": "review_volvo_d3110i_table",
      "manufacturer": "Volvo Penta",
      "model": "D3-110 I",
      "aliases": [],
      "variants": [
        "D3-110 I"
      ],
      "displayName": "Volvo Penta D3-110 I",
      "ratedPowerHp": 110.1,
      "ratedPowerKw": 81,
      "ratedRpm": 3000,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_numeric_load_table",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "D3-110 I, R5, 81 kW at 3000 RPM. Fuel samples are copied from Volvo technical sheet 21990131 issue 01 dated 2012-06-26, at calculated operating-load exponent 2.5. The separate full-load row is not substituted. Older publication values differ and are not averaged.",
        "Source-scoped numeric manufacturer load-table reference; not a measured boat trial or exact G-suffix calibration. Linear interpolation only from 700 to 3000 RPM, no extrapolation. The 3130-RPM load-table cell is blank and remains excluded. R5 is not an unrestricted continuous-duty rating."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 700,
          "lph": 0.8
        },
        {
          "rpm": 1200,
          "lph": 2.4
        },
        {
          "rpm": 1600,
          "lph": 4.7
        },
        {
          "rpm": 2000,
          "lph": 7.9
        },
        {
          "rpm": 2200,
          "lph": 9.9
        },
        {
          "rpm": 2400,
          "lph": 12.4
        },
        {
          "rpm": 2600,
          "lph": 14.8
        },
        {
          "rpm": 2800,
          "lph": 17.8
        },
        {
          "rpm": 3000,
          "lph": 21
        }
      ],
      "fuelReferenceSource": {
        "title": "Volvo Penta D3-110 I Technical Data, document 21990131, issue 01, 2012-06-26",
        "url": "https://www.dbmoteurs.fr/sites/default/files/t_d3_110_i_f_g--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
        "kind": "manufacturer-document",
        "locator": "PDF page 1: General, Rated speed R5; Performance, crankshaft kW at 3000 RPM; footer. PDF page 2: Fuel system, exponent-2.5 propeller-load and full-load l/h rows.",
        "evidence": "Printed model D3-110 I; R5; 81 kW at 3000 RPM. Numeric propeller-load fuel values are present at nine speeds through 3000 RPM. The full-load row is separate and extends to 3130 RPM. The filename's f_g text is not a printed suffix-applicability declaration.",
        "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta technical sheet on DB Moteurs mirror; all three pages extracted and pages 1-2 rendered in memory and visually inspected for columns, units, load and date.",
        "sha256": "907c21d79266e4b580f47fd2ecf9a708469f750caaf3e6d4654ffa5b5e20377d"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "sourceId": "family-volvo-vp-d3-110-table-2012",
        "boatMeasurement": false,
        "extrapolation": "none"
      },
      "ratingReview": {
        "referenceId": "review_volvo_d3110i_table",
        "manufacturer": "Volvo Penta",
        "model": "D3-110 I",
        "manufacturerRatedPowerKw": 81,
        "manufacturerRatedRpm": 3000,
        "warning": false,
        "warningNote": "",
        "note": "D3-110 I, R5, 81 kW at 3000 RPM. Fuel samples are copied from Volvo technical sheet 21990131 issue 01 dated 2012-06-26, at calculated operating-load exponent 2.5. The separate full-load row is not substituted. Older publication values differ and are not averaged. Source-scoped numeric manufacturer load-table reference; not a measured boat trial or exact G-suffix calibration. Linear interpolation only from 700 to 3000 RPM, no extrapolation. The 3130-RPM load-table cell is blank and remains excluded. R5 is not an unrestricted continuous-duty rating.",
        "sources": [
          {
            "title": "Volvo Penta D3-110 I Technical Data, document 21990131, issue 01, 2012-06-26",
            "url": "https://www.dbmoteurs.fr/sites/default/files/t_d3_110_i_f_g--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: General, Rated speed R5; Performance, crankshaft kW at 3000 RPM; footer. PDF page 2: Fuel system, exponent-2.5 propeller-load and full-load l/h rows.",
            "evidence": "Printed model D3-110 I; R5; 81 kW at 3000 RPM. Numeric propeller-load fuel values are present at nine speeds through 3000 RPM. The full-load row is separate and extends to 3130 RPM. The filename's f_g text is not a printed suffix-applicability declaration.",
            "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta technical sheet on DB Moteurs mirror; all three pages extracted and pages 1-2 rendered in memory and visually inspected for columns, units, load and date.",
            "sha256": "907c21d79266e4b580f47fd2ecf9a708469f750caaf3e6d4654ffa5b5e20377d"
          },
          {
            "title": "Volvo Penta D3-110 I Technical Data, document 21760197, issue 01, 2011-06-14",
            "url": "https://sermakpower.com/brosur/keyif-tekne/t_d3_110.pdf",
            "kind": "manufacturer-document",
            "locator": "PDF page 1: R5 rated speed, crankshaft power and footer. PDF page 2: Fuel system, exponent-2.5 propeller-load l/h row.",
            "evidence": "Earlier D3-110 I sheet also pairs 81 kW with 3000 RPM, but its numeric propeller-load fuel row differs from the 2012 edition. Preserve it as an alternative publication, not extra points to splice into the selected row.",
            "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta sheet on Sermak Power mirror; page 1 extracted and page 2 fuel-table area rendered in memory and visually checked.",
            "sha256": "85c5c34efe2d664cde8989a3a96d1e73b90f02a6eace07693f9a83b94187793e"
          },
          {
            "title": "Volvo Penta D3 French operator manual 47702806, 06-2013",
            "url": "https://manualzilla.com/doc/6385253/manuel-d-instructions",
            "kind": "manufacturer-document",
            "locator": "Printed page 139: Technical Data, D3-110i sales designation / D3-110i-G aftermarket designation, crankshaft and propeller-shaft columns.",
            "evidence": "Exact G row prints 82 kW crankshaft and 79 kW shaft. This table gives no model-specific rated RPM. It does not establish an exact G 82-kW/3000-RPM pair or resolve the difference from the nominal 81-kW D3-110 I technical sheets.",
            "access": "Original manufacturer manual reproduced as public HTML by Manualzilla; technical-data row and edition footer rechecked on 2026-10-17. No claim of new direct PDF retrieval."
          }
        ]
      }
    },
    {
      "id": "review_volvo_d6ips400",
      "manufacturer": "Volvo Penta",
      "model": "D6-IPS400",
      "aliases": [],
      "variants": [
        "D6-IPS400"
      ],
      "displayName": "Volvo Penta D6-IPS400",
      "ratedPowerHp": 300.5,
      "ratedPowerKw": 221,
      "ratedRpm": 3300,
      "fuelType": "diesel",
      "sourceConfidence": "medium",
      "curveSourceType": "manufacturer_graph_digitized",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "D6-IPS400 six-cylinder 5.5-litre IPS10 graph, English 12-2019, 221 kW / 3300 RPM. Not the older four-cylinder IPS400 or D6-300 shaft-drive engine.",
        "Digitized manufacturer fuel plot, not a numeric manufacturer table. Actual installed-boat fuel use varies with load, condition and installation."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 1000,
          "lph": 3.6
        },
        {
          "rpm": 1100,
          "lph": 4.4
        },
        {
          "rpm": 1200,
          "lph": 5.3
        },
        {
          "rpm": 1300,
          "lph": 6.1
        },
        {
          "rpm": 1400,
          "lph": 7.1
        },
        {
          "rpm": 1500,
          "lph": 8.2
        },
        {
          "rpm": 1600,
          "lph": 9.5
        },
        {
          "rpm": 1700,
          "lph": 11
        },
        {
          "rpm": 1800,
          "lph": 12.7
        },
        {
          "rpm": 1900,
          "lph": 14.5
        },
        {
          "rpm": 2000,
          "lph": 16.4
        },
        {
          "rpm": 2100,
          "lph": 18.4
        },
        {
          "rpm": 2200,
          "lph": 20.6
        },
        {
          "rpm": 2300,
          "lph": 23
        },
        {
          "rpm": 2400,
          "lph": 25.4
        },
        {
          "rpm": 2500,
          "lph": 28
        },
        {
          "rpm": 2600,
          "lph": 30.7
        },
        {
          "rpm": 2700,
          "lph": 33.8
        },
        {
          "rpm": 2800,
          "lph": 37.2
        },
        {
          "rpm": 2900,
          "lph": 41.2
        },
        {
          "rpm": 3000,
          "lph": 45.6
        },
        {
          "rpm": 3100,
          "lph": 49.8
        },
        {
          "rpm": 3200,
          "lph": 54.4
        },
        {
          "rpm": 3300,
          "lph": 59.6
        }
      ],
      "ratingReview": {
        "referenceId": "review_volvo_d6ips400",
        "manufacturer": "Volvo Penta",
        "model": "D6-IPS400",
        "manufacturerRatedPowerKw": 221,
        "manufacturerRatedRpm": 3300,
        "note": "D6-IPS400 six-cylinder 5.5-litre IPS10 graph, English 12-2019, 221 kW / 3300 RPM. Not the older four-cylinder IPS400 or D6-300 shaft-drive engine.",
        "sources": [
          {
            "title": "Volvo Penta Inboard Performance System D6-IPS 400/450/500/600/650, English 12-2019",
            "url": "https://vp-service.dk/wp-content/uploads/2024/02/297_47711958-en-d6-400-450-500-600-650-5.pdf",
            "sha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70",
            "page": 1,
            "edition": "English 12-2019",
            "locator": "PDF page 1, fuel consumption graph"
          }
        ]
      },
      "previousCurveSourceType": "extrapolated_from_rated_power",
      "fuelReferenceSource": {
        "title": "Volvo Penta Inboard Performance System D6-IPS 400/450/500/600/650, English 12-2019",
        "url": "https://vp-service.dk/wp-content/uploads/2024/02/297_47711958-en-d6-400-450-500-600-650-5.pdf",
        "sha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70",
        "page": 1,
        "edition": "English 12-2019",
        "locator": "PDF page 1, fuel consumption graph"
      },
      "curveConditions": {
        "loadExponent": 2.5,
        "basis": "manufacturer calculated propeller load",
        "perEngine": true,
        "boatMeasurement": false,
        "extrapolation": "none",
        "sourceModel": "D6-IPS400",
        "sourceCurveId": "D6-IPS400",
        "sourceRatedPowerKw": 221,
        "sourceEdition": "English 12-2019",
        "applicability": "model-specific",
        "applicabilityNote": "D6-IPS400 six-cylinder 5.5-litre IPS10 graph, English 12-2019, 221 kW / 3300 RPM. Not the older four-cylinder IPS400 or D6-300 shaft-drive engine."
      },
      "curveDigitization": {
        "reviewedOn": "2026-10-18",
        "method": "PDF vector centerline extraction; calibrated RPM/Lh ticks; direct cubic-Bezier x(t) inversion of original PDF path, not a fuel/power formula",
        "uncertaintyLph": 0.6,
        "uncertaintyScope": "Approximate graph-reading allowance per engine, not total real-world fuel-use uncertainty",
        "sourceSha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70",
        "sourcePage": 1
      }
    },
    {
      "id": "review_vw_tdi1405bw",
      "manufacturer": "Volkswagen",
      "model": "TDI 140-5 BW",
      "aliases": [],
      "variants": [
        "TDI 140-5 BW"
      ],
      "displayName": "Volkswagen TDI 140-5 BW",
      "ratedPowerHp": 140,
      "ratedPowerKw": 103,
      "ratedRpm": 3500,
      "fuelType": "diesel",
      "sourceConfidence": "low",
      "curveSourceType": "extrapolated_from_rated_power",
      "referenceOrigin": "manufacturer-rating-extension",
      "sourceNotes": [
        "Representative TDI 140-5 BW reference uses the paired manufacturer 103 kW / 3500 RPM rating from the November 2009 brochure. The boat source does not establish BW as fitted. No numeric RPM/L/h table or rated-fuel endpoint was verified; the brochure's unspecified minimum 203 g/kWh is not used as rated-load fuel consumption.",
        "Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use."
      ],
      "interpolation": "piecewise_linear_between_rpm_points",
      "curve": [
        {
          "rpm": 900,
          "lph": 0.593
        },
        {
          "rpm": 1000,
          "lph": 0.813
        },
        {
          "rpm": 1100,
          "lph": 1.082
        },
        {
          "rpm": 1200,
          "lph": 1.405
        },
        {
          "rpm": 1300,
          "lph": 1.786
        },
        {
          "rpm": 1400,
          "lph": 2.231
        },
        {
          "rpm": 1500,
          "lph": 2.744
        },
        {
          "rpm": 1600,
          "lph": 3.331
        },
        {
          "rpm": 1700,
          "lph": 3.995
        },
        {
          "rpm": 1800,
          "lph": 4.742
        },
        {
          "rpm": 1900,
          "lph": 5.577
        },
        {
          "rpm": 2000,
          "lph": 6.505
        },
        {
          "rpm": 2100,
          "lph": 7.53
        },
        {
          "rpm": 2200,
          "lph": 8.658
        },
        {
          "rpm": 2300,
          "lph": 9.893
        },
        {
          "rpm": 2400,
          "lph": 11.241
        },
        {
          "rpm": 2500,
          "lph": 12.705
        },
        {
          "rpm": 2600,
          "lph": 14.292
        },
        {
          "rpm": 2700,
          "lph": 16.005
        },
        {
          "rpm": 2800,
          "lph": 17.85
        },
        {
          "rpm": 2900,
          "lph": 19.832
        },
        {
          "rpm": 3000,
          "lph": 21.955
        },
        {
          "rpm": 3100,
          "lph": 24.224
        },
        {
          "rpm": 3200,
          "lph": 26.645
        },
        {
          "rpm": 3300,
          "lph": 29.222
        },
        {
          "rpm": 3400,
          "lph": 31.96
        },
        {
          "rpm": 3500,
          "lph": 34.863
        }
      ],
      "curveAssumptions": {
        "loadExponent": 3,
        "bsfcGramsPerKwh": 285,
        "dieselDensityKgPerLitre": 0.842,
        "minimumFuelLph": 0.45,
        "ratedFuelLph": 34.86342042755344,
        "formula": "max(minimumFuelLph, ratedPowerKw * bsfcGramsPerKwh / 1000 / dieselDensityKgPerLitre * (rpm / ratedRpm)^loadExponent)"
      },
      "ratingReview": {
        "referenceId": "review_vw_tdi1405bw",
        "manufacturer": "Volkswagen",
        "model": "TDI 140-5 BW",
        "manufacturerRatedPowerKw": 103,
        "manufacturerRatedRpm": 3500,
        "warning": false,
        "warningNote": "",
        "note": "Representative TDI 140-5 BW reference uses the paired manufacturer 103 kW / 3500 RPM rating from the November 2009 brochure. The boat source does not establish BW as fitted. No numeric RPM/L/h table or rated-fuel endpoint was verified; the brochure's unspecified minimum 203 g/kWh is not used as rated-load fuel consumption. Fuel values are calculated planning estimates, not manufacturer-measured fuel consumption or boat tests. Constant BSFC, cubic operating load and the 0.45 L/h minimum are modelling assumptions, not verified low-load behaviour. Installation, load, condition and fuel properties can materially change actual use.",
        "sources": [
          {
            "title": "Volkswagen Marine, Engines for Blue Water Craft, BlueWater_e_09.qxd, November 2009",
            "url": "https://expydoc.com/doc/3339812/engines-for-blue-water-craft",
            "kind": "manufacturer-document",
            "locator": "Printed page 2, TDI 140-5 BW model panel; printed page 5, Specifications, TDI 140-5 BW column; transcript lines 81-136 and 199-274.",
            "evidence": "The named BW variant pairs 103 kW / 140 hp with 3500 RPM, also repeated in the ISO 3046 specification table. Minimum specific fuel consumption is 203 g/kWh, without its RPM/load. The brochure describes BW-specific electronic mapping. No numeric RPM/L/h table or rated-power L/h endpoint was found in this transcript.",
            "access": "Manufacturer-authored brochure read through a public third-party transcript on 2026-10-17, not a current manufacturer-hosted PDF. The download link returned 403 Forbidden. Text transcription and original-page image fidelity could not be independently compared. No values were read from plotted curves."
          }
        ]
      }
    }
  ],
  "brands": [
    {
      "name": "Bali",
      "models": [
        {
          "name": "Bali 4.0",
          "boatType": "catamaran",
          "yachtModelId": 1073727,
          "sourceModelIds": [
            1073727,
            1306207
          ],
          "sourceModelNames": [
            "Bali 4.0 - 4 + 2 cab.",
            "Bali 4.0 - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-1073727-volvopenta-d240-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2017. 2018 dealer-documented vessel only; does not establish the engines of all 2017-2018 hulls. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali40",
                "title": "Croatia Yachting: 2018 Bali 4.0 equipment overview",
                "url": "https://bali-catamarans-dealer-croatia.com/images/ownership/yacht-annexes/used-bali-4_0-2018-overview.pdf",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed equipment passage",
                "evidence": "Two Volvo D2-40 engines replace the standard 20 hp equipment on this 2018 vessel.",
                "note": "Catalogue build years: 2018, 2017. 2018 dealer-documented vessel only; does not establish the engines of all 2017-2018 hulls. Vessel evidence is not universal factory fit. Two Volvo D2-40 engines replace the standard 20 hp equipment on this 2018 vessel."
              },
              "sources": [
                {
                  "id": "cat-bali40",
                  "title": "Croatia Yachting: 2018 Bali 4.0 equipment overview",
                  "url": "https://bali-catamarans-dealer-croatia.com/images/ownership/yacht-annexes/used-bali-4_0-2018-overview.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed equipment passage",
                  "evidence": "Two Volvo D2-40 engines replace the standard 20 hp equipment on this 2018 vessel.",
                  "note": "Catalogue build years: 2018, 2017. 2018 dealer-documented vessel only; does not establish the engines of all 2017-2018 hulls. Vessel evidence is not universal factory fit. Two Volvo D2-40 engines replace the standard 20 hp equipment on this 2018 vessel."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.0\" \"engine\" \"model\"",
              "\"Bali 4.0\" \"D2-40\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1073727-volvopenta-d240-2"
        },
        {
          "name": "Bali 4.1",
          "boatType": "catamaran",
          "yachtModelId": 4422574,
          "sourceModelIds": [
            4422574,
            4487061,
            10233344
          ],
          "sourceModelNames": [
            "Bali 4.1 - 3 + 1 cab.",
            "Bali 4.1 - 4 + 1 cab.",
            "Bali 4.1 - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-4422574-volvopenta-d240-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2020, 2019, 2018. Listed available engine in the February 2018 owner's manual for the 4.1 generation; no standard/option hierarchy inferred. The source's apparent D2-20 and 3JHSE typos are excluded. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali41",
                "title": "Catana: Bali 4.1 owner's manual, February 2018",
                "url": "https://www.booking-manager.com/wbm2/bmdoc/3892661409705620_BALI_4.1_OWNER%27S_MANUAL.pdf",
                "kind": "manufacturer-manual",
                "locator": "Page 10, General Specifications / available engine weights",
                "evidence": "The twin-engine boat specification explicitly lists Volvo D2-40 among available engines. Other strings in the table appear inconsistent and are not normalized into guessed engine models.",
                "note": "Catalogue build years: 2020, 2019, 2018. Listed available engine in the February 2018 owner's manual for the 4.1 generation; no standard/option hierarchy inferred. The source's apparent D2-20 and 3JHSE typos are excluded. Vessel evidence is not universal factory fit. The twin-engine boat specification explicitly lists Volvo D2-40 among available engines. Other strings in the table appear inconsistent and are not normalized into guessed engine models."
              },
              "sources": [
                {
                  "id": "cat-bali41",
                  "title": "Catana: Bali 4.1 owner's manual, February 2018",
                  "url": "https://www.booking-manager.com/wbm2/bmdoc/3892661409705620_BALI_4.1_OWNER%27S_MANUAL.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Page 10, General Specifications / available engine weights",
                  "evidence": "The twin-engine boat specification explicitly lists Volvo D2-40 among available engines. Other strings in the table appear inconsistent and are not normalized into guessed engine models.",
                  "note": "Catalogue build years: 2020, 2019, 2018. Listed available engine in the February 2018 owner's manual for the 4.1 generation; no standard/option hierarchy inferred. The source's apparent D2-20 and 3JHSE typos are excluded. Vessel evidence is not universal factory fit. The twin-engine boat specification explicitly lists Volvo D2-40 among available engines. Other strings in the table appear inconsistent and are not normalized into guessed engine models."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.1\" \"engine\" \"model\"",
              "\"Bali 4.1\" \"3JH5E\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4422574-volvopenta-d240-2"
        },
        {
          "name": "Bali 4.2",
          "boatType": "catamaran",
          "yachtModelId": 12625379,
          "sourceModelIds": [
            12625379,
            13969142,
            13969144,
            23049501
          ],
          "sourceModelNames": [
            "Bali 4.2",
            "Bali 4.2 - 4 + 1 cab.",
            "Bali 4.2 - 4 + 2 cab.",
            "Bali 4.2 OW"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-12625379-yanmar-4jh45-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2021 Simpson Marine vessel only; not all 2021-2026 builds. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali42-y",
                "title": "Simpson Marine: 2021 Bali 4.2 vessel specification",
                "url": "https://www.simpsonmarine.com/yachts/Bali-4.2-9473047/pdf/",
                "kind": "documented-vessel-example",
                "locator": "PROPULSION, Engine No. 1 and Engine No. 2",
                "evidence": "Both propulsion engines are explicitly Yanmar 4JH45, 45 hp, engine year 2021.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2021 Simpson Marine vessel only; not all 2021-2026 builds. Vessel evidence is not universal factory fit. Both propulsion engines are explicitly Yanmar 4JH45, 45 hp, engine year 2021."
              },
              "sources": [
                {
                  "id": "cat-bali42-y",
                  "title": "Simpson Marine: 2021 Bali 4.2 vessel specification",
                  "url": "https://www.simpsonmarine.com/yachts/Bali-4.2-9473047/pdf/",
                  "kind": "documented-vessel-example",
                  "locator": "PROPULSION, Engine No. 1 and Engine No. 2",
                  "evidence": "Both propulsion engines are explicitly Yanmar 4JH45, 45 hp, engine year 2021.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2021 Simpson Marine vessel only; not all 2021-2026 builds. Vessel evidence is not universal factory fit. Both propulsion engines are explicitly Yanmar 4JH45, 45 hp, engine year 2021."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 66.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-12625379-nanni-n450-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Nanni",
              "engineModel": "N4.50",
              "engineDisplayName": "Nanni N4.50",
              "engineReferenceId": "review_nanni_n450",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2023 Croatia Yachting vessel in Seget only; independent observed installation, not a universal substitution. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali42-n",
                "title": "Croatia Yachting: 2023 Bali 4.2 seller listing",
                "url": "https://www.inautia.com/boat/2023-bali-4-2-10244230/",
                "kind": "documented-vessel-example",
                "locator": "Seller Croatia Yachting; Engine and Total Power",
                "evidence": "The 2023 Seget vessel is listed with Nanni N4.50 engines and 90 hp total; this is a different documented installation, not a replacement for the Yanmar evidence.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2023 Croatia Yachting vessel in Seget only; independent observed installation, not a universal substitution. Vessel evidence is not universal factory fit. The 2023 Seget vessel is listed with Nanni N4.50 engines and 90 hp total; this is a different documented installation, not a replacement for the Yanmar evidence."
              },
              "sources": [
                {
                  "id": "cat-bali42-n",
                  "title": "Croatia Yachting: 2023 Bali 4.2 seller listing",
                  "url": "https://www.inautia.com/boat/2023-bali-4-2-10244230/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller Croatia Yachting; Engine and Total Power",
                  "evidence": "The 2023 Seget vessel is listed with Nanni N4.50 engines and 90 hp total; this is a different documented installation, not a replacement for the Yanmar evidence.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021. 2023 Croatia Yachting vessel in Seget only; independent observed installation, not a universal substitution. Vessel evidence is not universal factory fit. The 2023 Seget vessel is listed with Nanni N4.50 engines and 90 hp total; this is a different documented installation, not a replacement for the Yanmar evidence."
                }
              ],
              "selectionPower": {
                "kw": 35.4,
                "sources": [
                  "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 70.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.2\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12625379-yanmar-4jh45-2"
        },
        {
          "name": "Bali 4.3",
          "boatType": "catamaran",
          "yachtModelId": 1078634,
          "sourceModelIds": [
            1078634
          ],
          "sourceModelNames": [
            "Bali 4.3 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-1078634-volvopenta-d250f-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50F",
              "engineDisplayName": "Volvo Penta D2-50F",
              "engineReferenceId": "review_volvopenta_d250f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2017. 2017 charter vessel SAMOA only. Source writes Volvo D2 50 F; hyphenation is normalized, suffix F preserved. Indexed inventory only; do not confuse with the 4.3 MY. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali43",
                "title": "Dream Yacht: SAMOA, 2017 Bali 4.3 inventory",
                "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1073",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed title and Engine(s) / Engine Model",
                "evidence": "The operator's SAMOA inventory identifies the 2017 Bali 4.3 engine model as Volvo D2 50 F, explicitly 2 x 50 hp. Full PDF retrieval failed; support is the indexed inventory passage.",
                "note": "Catalogue build years: 2018, 2017. 2017 charter vessel SAMOA only. Source writes Volvo D2 50 F; hyphenation is normalized, suffix F preserved. Indexed inventory only; do not confuse with the 4.3 MY. Vessel evidence is not universal factory fit. The operator's SAMOA inventory identifies the 2017 Bali 4.3 engine model as Volvo D2 50 F, explicitly 2 x 50 hp. Full PDF retrieval failed; support is the indexed inventory passage."
              },
              "sources": [
                {
                  "id": "cat-bali43",
                  "title": "Dream Yacht: SAMOA, 2017 Bali 4.3 inventory",
                  "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1073",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed title and Engine(s) / Engine Model",
                  "evidence": "The operator's SAMOA inventory identifies the 2017 Bali 4.3 engine model as Volvo D2 50 F, explicitly 2 x 50 hp. Full PDF retrieval failed; support is the indexed inventory passage.",
                  "note": "Catalogue build years: 2018, 2017. 2017 charter vessel SAMOA only. Source writes Volvo D2 50 F; hyphenation is normalized, suffix F preserved. Indexed inventory only; do not confuse with the 4.3 MY. Vessel evidence is not universal factory fit. The operator's SAMOA inventory identifies the 2017 Bali 4.3 engine model as Volvo D2 50 F, explicitly 2 x 50 hp. Full PDF retrieval failed; support is the indexed inventory passage."
                }
              ],
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf",
                  "https://www.royor.net/rafni/assets/volvo-manual-instrucciones-d2-50%2C-d2-60%2C-d-75.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 75
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.3\" \"engine\" \"model\"",
              "\"Bali 4.3\" \"2017\" \"D2\"",
              "\"Bali 4.3\" \"2017\" \"D2-50\"",
              "site:apicube.dreamyacht.com/api/tosellboats/GetDocument/1073 \"Engines HP\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1078634-volvopenta-d250f-2"
        },
        {
          "name": "Bali 4.3 MY",
          "boatType": "catamaran",
          "yachtModelId": 12155572,
          "sourceModelIds": [
            12155572,
            13967633
          ],
          "sourceModelNames": [
            "Bali 4.3 MY - 3 cab.",
            "Bali 4.3 MY - 4 + 1 cab"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-12155572-yanmar-4lv250-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV-250",
              "engineDisplayName": "Yanmar 4LV-250",
              "engineReferenceId": "review_yanmar_4lv250",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2020, 2022. Exact identity is documented only for Catamaran Center's 2019 PHILYA, outside those catalogue years; the seller's hyphenated label is preserved. It does not establish factory fit or the installation on the 2020/2022 catalogue boats. Inconsistent listing power units are not used.",
              "source": {
                "id": "cat-bali43my-philya-2019",
                "title": "Catamaran Center S.L: 2019 Bali 4.3 MY PHILYA seller listing",
                "url": "https://www.boats.com/power-boats/2019-bali-4-3-my-9099754/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed original seller advertisement / Boat Details; Propulsion, both engine entries",
                "evidence": "Catamaran Center's advertisement explicitly lists two Yanmar 4LV-250 engines, engine year 2019. The listing's power units are inconsistent, so no power rating is adopted. Direct opening redirected to the seller platform's general Bali listings; the exact model fields remain search-indexed.",
                "note": "Catalogue build years: 2020, 2022. Exact identity is documented only for Catamaran Center's 2019 PHILYA, outside those catalogue years; the seller's hyphenated label is preserved. It does not establish factory fit or the installation on the 2020/2022 catalogue boats. Inconsistent listing power units are not used. Catamaran Center's advertisement explicitly lists two Yanmar 4LV-250 engines, engine year 2019. The listing's power units are inconsistent, so no power rating is adopted. Direct opening redirected to the seller platform's general Bali listings; the exact model fields remain search-indexed."
              },
              "sources": [
                {
                  "id": "cat-bali43my-philya-2019",
                  "title": "Catamaran Center S.L: 2019 Bali 4.3 MY PHILYA seller listing",
                  "url": "https://www.boats.com/power-boats/2019-bali-4-3-my-9099754/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed original seller advertisement / Boat Details; Propulsion, both engine entries",
                  "evidence": "Catamaran Center's advertisement explicitly lists two Yanmar 4LV-250 engines, engine year 2019. The listing's power units are inconsistent, so no power rating is adopted. Direct opening redirected to the seller platform's general Bali listings; the exact model fields remain search-indexed.",
                  "note": "Catalogue build years: 2020, 2022. Exact identity is documented only for Catamaran Center's 2019 PHILYA, outside those catalogue years; the seller's hyphenated label is preserved. It does not establish factory fit or the installation on the 2020/2022 catalogue boats. Inconsistent listing power units are not used. Catamaran Center's advertisement explicitly lists two Yanmar 4LV-250 engines, engine year 2019. The listing's power units are inconsistent, so no power rating is adopted. Direct opening redirected to the seller platform's general Bali listings; the exact model fields remain search-indexed."
                }
              ],
              "selectionPower": {
                "kw": 184,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV230-250_A4_2021_1018_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 368
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.3 MY\" engine Yanmar model",
              "\"Bali 4.3 MY\" \"4LV250\" -site:imacis.fr -site:leo-yachting.com",
              "\"Bali 4.3 MY\" \"4LV250\" site:ybh.gr",
              "site:leo-yachting.com \"Bali\" \"dealer\"",
              "\"Bali 4.3 MY\" \"Yanmar\" site:baotic-yachting.com",
              "\"Bali 4.3 MY\" \"4LV250\" Baotic",
              "\"Bali 4.3 MY\" manual engine",
              "\"Bali 4.3 MY\" \"4LV\" site:bali-catamarans.com",
              "\"Bali 4.3 MY\" \"4LV250\" broker yacht sales",
              "\"Bali 4.3 MY\" \"4LV250\" \"Catamaran Center\"",
              "\"Bali 4.3 MY\" \"4LV250\" site:boats.com",
              "site:catamarancenter.com \"4.3\"",
              "\"Catamaran Center\" \"Bali 4.3 MY\"",
              "\"Bali 4.3 MY\" \"4LV-250\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12155572-yanmar-4lv250-2"
        },
        {
          "name": "Bali 4.4",
          "boatType": "catamaran",
          "yachtModelId": 23155356,
          "sourceModelIds": [
            23155356,
            23170749,
            24192112
          ],
          "sourceModelNames": [
            "Bali 4.4 - 3 + 1 cab.",
            "Bali 4.4 - 4 + 1 cab.",
            "Bali 4.4 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-23155356-yanmar-4jh57-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023, 2022. 2022 Oren vessel only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali44-y",
                "title": "Broker vessel listing: 2022 Bali 4.4 in Oren",
                "url": "https://boats.com/sailing-boats/2022-bali-4-4-10153184/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion; Engine and Propulsion System",
                "evidence": "This 2022 vessel has two Yanmar 4JH57 engines, 57 hp each, with 2444 hours recorded.",
                "note": "Catalogue build years: 2025, 2024, 2023, 2022. 2022 Oren vessel only. Vessel evidence is not universal factory fit. This 2022 vessel has two Yanmar 4JH57 engines, 57 hp each, with 2444 hours recorded."
              },
              "sources": [
                {
                  "id": "cat-bali44-y",
                  "title": "Broker vessel listing: 2022 Bali 4.4 in Oren",
                  "url": "https://boats.com/sailing-boats/2022-bali-4-4-10153184/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion; Engine and Propulsion System",
                  "evidence": "This 2022 vessel has two Yanmar 4JH57 engines, 57 hp each, with 2444 hours recorded.",
                  "note": "Catalogue build years: 2025, 2024, 2023, 2022. 2022 Oren vessel only. Vessel evidence is not universal factory fit. This 2022 vessel has two Yanmar 4JH57 engines, 57 hp each, with 2444 hours recorded."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-23155356-nanni-n465-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Nanni",
              "engineModel": "N4.65",
              "engineDisplayName": "Nanni N4.65",
              "engineReferenceId": "review_nanni_n465",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023, 2022. 2024 Master Yachting central-listing vessel only; model is retained without forcing a rating from the source's 59 hp display. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali44-n",
                "title": "Master Yachting central listing: 2024 Bali 4.4 in Oren",
                "url": "https://www.boats.com/sailing-boats/2024-bali-4-4-10323339/",
                "kind": "documented-vessel-example",
                "locator": "Presented For Sale By Master Yachting; Propulsion",
                "evidence": "The central broker lists two Nanni Diesel N4.65 engines on the 2024 vessel. The displayed 59 hp rating is retained only as source context.",
                "note": "Catalogue build years: 2025, 2024, 2023, 2022. 2024 Master Yachting central-listing vessel only; model is retained without forcing a rating from the source's 59 hp display. Vessel evidence is not universal factory fit. The central broker lists two Nanni Diesel N4.65 engines on the 2024 vessel. The displayed 59 hp rating is retained only as source context."
              },
              "sources": [
                {
                  "id": "cat-bali44-n",
                  "title": "Master Yachting central listing: 2024 Bali 4.4 in Oren",
                  "url": "https://www.boats.com/sailing-boats/2024-bali-4-4-10323339/",
                  "kind": "documented-vessel-example",
                  "locator": "Presented For Sale By Master Yachting; Propulsion",
                  "evidence": "The central broker lists two Nanni Diesel N4.65 engines on the 2024 vessel. The displayed 59 hp rating is retained only as source context.",
                  "note": "Catalogue build years: 2025, 2024, 2023, 2022. 2024 Master Yachting central-listing vessel only; model is retained without forcing a rating from the source's 59 hp display. Vessel evidence is not universal factory fit. The central broker lists two Nanni Diesel N4.65 engines on the 2024 vessel. The displayed 59 hp rating is retained only as source context."
                }
              ],
              "selectionPower": {
                "kw": 43.4,
                "sources": [
                  "https://nannienergy.com/it/produit/engine-n4-65/"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 86.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.4\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23155356-yanmar-4jh57-2"
        },
        {
          "name": "Bali 4.5",
          "boatType": "catamaran",
          "yachtModelId": 859116,
          "sourceModelIds": [
            859116
          ],
          "sourceModelNames": [
            "Bali 4.5 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-859116-volvopenta-d255f-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55F",
              "engineDisplayName": "Volvo Penta D2-55F",
              "engineReferenceId": "review_volvopenta_d255f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2019, 2018, 2017. 2017 Catamaran Guru sale vessel only; preserve the F suffix. Published 40/55/57 hp offerings elsewhere are not converted into additional guessed models. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali45",
                "title": "Catamaran Guru: 2017 Bali 4.5 original sale inventory",
                "url": "https://catamaranguru.com/2017-bali-4-5-for-sale-great-buy/",
                "kind": "documented-vessel-example",
                "locator": "Engines entry",
                "evidence": "The original sale inventory explicitly gives two Volvo D2-55F engines with saildrives.",
                "note": "Catalogue build years: 2019, 2018, 2017. 2017 Catamaran Guru sale vessel only; preserve the F suffix. Published 40/55/57 hp offerings elsewhere are not converted into additional guessed models. Vessel evidence is not universal factory fit. The original sale inventory explicitly gives two Volvo D2-55F engines with saildrives."
              },
              "sources": [
                {
                  "id": "cat-bali45",
                  "title": "Catamaran Guru: 2017 Bali 4.5 original sale inventory",
                  "url": "https://catamaranguru.com/2017-bali-4-5-for-sale-great-buy/",
                  "kind": "documented-vessel-example",
                  "locator": "Engines entry",
                  "evidence": "The original sale inventory explicitly gives two Volvo D2-55F engines with saildrives.",
                  "note": "Catalogue build years: 2019, 2018, 2017. 2017 Catamaran Guru sale vessel only; preserve the F suffix. Published 40/55/57 hp offerings elsewhere are not converted into additional guessed models. Vessel evidence is not universal factory fit. The original sale inventory explicitly gives two Volvo D2-55F engines with saildrives."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://www.manualslib.de/manual/49008/Volvo-Penta-D2.html?page=76"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 82
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.5\" \"engine model\"",
              "\"Bali 4.5\" \"4JH\" broker",
              "\"Bali 4.5\" \"4JH57\"",
              "\"Bali 4.5\" \"D2-50\"",
              "\"Bali 4.5\" engines Volvo Yanmar specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-859116-volvopenta-d255f-2"
        },
        {
          "name": "Bali 4.6",
          "boatType": "catamaran",
          "yachtModelId": 12425723,
          "sourceModelIds": [
            12425723,
            12625380,
            12719078,
            24235406,
            33570454
          ],
          "sourceModelNames": [
            "Bali 4.6 - 4 + 1 cab.",
            "Bali 4.6 - 4 cab. OW",
            "Bali 4.6 - 5 + 1 cab.",
            "Bali 4.6 - 5 + 2 cab.",
            "Bali 4.6 - 5 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-12425723-yanmar-4jh57-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2022, 2021. Advertised 2024 Marseille vessel, launched October 2023 with 2023 engines; vessel evidence only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali46",
                "title": "Yacht Deals: 2024 Bali 4.6, Marseille seller listing",
                "url": "https://boats.com/sailing-boats/2024-bali-4-6-10186998/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion; vessel launched October 2023",
                "evidence": "Two Yanmar 4JH57 engines are identified, with 2023 engine years on the advertised 2024 model.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2022, 2021. Advertised 2024 Marseille vessel, launched October 2023 with 2023 engines; vessel evidence only. Vessel evidence is not universal factory fit. Two Yanmar 4JH57 engines are identified, with 2023 engine years on the advertised 2024 model."
              },
              "sources": [
                {
                  "id": "cat-bali46",
                  "title": "Yacht Deals: 2024 Bali 4.6, Marseille seller listing",
                  "url": "https://boats.com/sailing-boats/2024-bali-4-6-10186998/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion; vessel launched October 2023",
                  "evidence": "Two Yanmar 4JH57 engines are identified, with 2023 engine years on the advertised 2024 model.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2022, 2021. Advertised 2024 Marseille vessel, launched October 2023 with 2023 engines; vessel evidence only. Vessel evidence is not universal factory fit. Two Yanmar 4JH57 engines are identified, with 2023 engine years on the advertised 2024 model."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.6\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12425723-yanmar-4jh57-2"
        },
        {
          "name": "Bali 4.8",
          "boatType": "catamaran",
          "yachtModelId": 10272424,
          "sourceModelIds": [
            10272424,
            10346712,
            10568679,
            22562164,
            23049071
          ],
          "sourceModelNames": [
            "Bali 4.8 - 5 + 2 cab",
            "Bali 4.8 - 5 cab.",
            "Bali 4.8 - 6 + 1 cab.",
            "Bali 4.8 - 6 + 2 cab.",
            "Bali 4.8 - 6 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-10272424-yanmar-4jh80-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2024, 2023, 2022, 2021, 2020. 2023 Nina Yachting Marmaris vessel only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali48",
                "title": "Nina Yachting: 2023 Bali 4.8, Marmaris seller listing",
                "url": "https://www.boats.com/sailing-boats/2023-bali-4-8-10363912/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, port and starboard engine entries",
                "evidence": "The broker explicitly lists twin Yanmar 4JH80 engines, 80 hp each, engine year 2023.",
                "note": "Catalogue build years: 2024, 2023, 2022, 2021, 2020. 2023 Nina Yachting Marmaris vessel only. Vessel evidence is not universal factory fit. The broker explicitly lists twin Yanmar 4JH80 engines, 80 hp each, engine year 2023."
              },
              "sources": [
                {
                  "id": "cat-bali48",
                  "title": "Nina Yachting: 2023 Bali 4.8, Marmaris seller listing",
                  "url": "https://www.boats.com/sailing-boats/2023-bali-4-8-10363912/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, port and starboard engine entries",
                  "evidence": "The broker explicitly lists twin Yanmar 4JH80 engines, 80 hp each, engine year 2023.",
                  "note": "Catalogue build years: 2024, 2023, 2022, 2021, 2020. 2023 Nina Yachting Marmaris vessel only. Vessel evidence is not universal factory fit. The broker explicitly lists twin Yanmar 4JH80 engines, 80 hp each, engine year 2023."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 4.8\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10272424-yanmar-4jh80-2"
        },
        {
          "name": "Bali 5.2",
          "boatType": "catamaran",
          "yachtModelId": 58680964,
          "sourceModelIds": [
            58680964,
            68886633
          ],
          "sourceModelNames": [
            "Bali 5.2 - 5 + 2 cab.",
            "Bali 5.2 - 6 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-58680964-yanmar-4jh57-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026. Published Bali 5.2 generation configuration; dealer explicitly names model, not just 57 hp. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali52",
                "title": "Yachting 360: Bali 5.2 equipment specification",
                "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                "kind": "authorized-dealer-specification",
                "locator": "Search-indexed propulsion paragraph",
                "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                "note": "Catalogue build years: 2026. Published Bali 5.2 generation configuration; dealer explicitly names model, not just 57 hp. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
              },
              "sources": [
                {
                  "id": "cat-bali52",
                  "title": "Yachting 360: Bali 5.2 equipment specification",
                  "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                  "kind": "authorized-dealer-specification",
                  "locator": "Search-indexed propulsion paragraph",
                  "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                  "note": "Catalogue build years: 2026. Published Bali 5.2 generation configuration; dealer explicitly names model, not just 57 hp. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-58680964-yanmar-4jh80-2",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026. Dealer-published Bali 5.2 option; available order-year specification must be checked. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali52",
                "title": "Yachting 360: Bali 5.2 equipment specification",
                "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                "kind": "authorized-dealer-specification",
                "locator": "Search-indexed propulsion paragraph",
                "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                "note": "Catalogue build years: 2026. Dealer-published Bali 5.2 option; available order-year specification must be checked. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
              },
              "sources": [
                {
                  "id": "cat-bali52",
                  "title": "Yachting 360: Bali 5.2 equipment specification",
                  "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                  "kind": "authorized-dealer-specification",
                  "locator": "Search-indexed propulsion paragraph",
                  "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                  "note": "Catalogue build years: 2026. Dealer-published Bali 5.2 option; available order-year specification must be checked. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-58680964-yanmar-4jh110-2",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026. Dealer-published option; not established for every A2026 price-list revision. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali52",
                "title": "Yachting 360: Bali 5.2 equipment specification",
                "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                "kind": "authorized-dealer-specification",
                "locator": "Search-indexed propulsion paragraph",
                "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                "note": "Catalogue build years: 2026. Dealer-published option; not established for every A2026 price-list revision. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
              },
              "sources": [
                {
                  "id": "cat-bali52",
                  "title": "Yachting 360: Bali 5.2 equipment specification",
                  "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                  "kind": "authorized-dealer-specification",
                  "locator": "Search-indexed propulsion paragraph",
                  "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                  "note": "Catalogue build years: 2026. Dealer-published option; not established for every A2026 price-list revision. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 161.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-58680964-nanni-n4115-2",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Nanni",
              "engineModel": "N4.115",
              "engineDisplayName": "Nanni N4.115",
              "engineReferenceId": "review_nanni_n4115",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026. Nanni option explicitly named by dealer; A2026 list separately names the N4.115 propeller package for twin 115 hp engines. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali52",
                "title": "Yachting 360: Bali 5.2 equipment specification",
                "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                "kind": "authorized-dealer-specification",
                "locator": "Search-indexed propulsion paragraph",
                "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                "note": "Catalogue build years: 2026. Nanni option explicitly named by dealer; A2026 list separately names the N4.115 propeller package for twin 115 hp engines. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
              },
              "sources": [
                {
                  "id": "cat-bali52",
                  "title": "Yachting 360: Bali 5.2 equipment specification",
                  "url": "https://www.yachting360.fr/de/bateaux/bali-52",
                  "kind": "authorized-dealer-specification",
                  "locator": "Search-indexed propulsion paragraph",
                  "evidence": "The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone.",
                  "note": "Catalogue build years: 2026. Nanni option explicitly named by dealer; A2026 list separately names the N4.115 propeller package for twin 115 hp engines. Vessel evidence is not universal factory fit. The dealer explicitly names twin 4JH57 engines and Yanmar 4JH80 / 4JH110 and Nanni N4.115 options. No engine identity is derived from power alone."
                },
                {
                  "id": "cat-bali52-price",
                  "title": "Croatia Yachting: Bali 5.2 price list A2026",
                  "url": "https://bali-catamarans-dealer-croatia.com/images/ownership/yacht-annexes/Tarif%20Bali%205.2%20A2026.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Engines and Safety equipment; Nanni propeller line",
                  "evidence": "The 2026 list offers twin Nanni 115 hp in lieu of Yanmar 57 hp and explicitly identifies the corresponding Nanni N4.115 propeller package.",
                  "note": "Catalogue build years: 2026. Nanni option explicitly named by dealer; A2026 list separately names the N4.115 propeller package for twin 115 hp engines. Vessel evidence is not universal factory fit. The 2026 list offers twin Nanni 115 hp in lieu of Yanmar 57 hp and explicitly identifies the corresponding Nanni N4.115 propeller package."
                }
              ],
              "selectionPower": {
                "kw": 84.6,
                "sources": [
                  "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01010B_N4.115-2.pdf",
                  "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 169.2
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 5.2\" engine Yanmar Nanni model",
              "site:yachting360.fr \"concessionnaire\" \"Bali\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-58680964-yanmar-4jh57-2"
        },
        {
          "name": "Bali 5.4",
          "boatType": "catamaran",
          "yachtModelId": 3957928,
          "sourceModelIds": [
            3957928,
            8380148,
            8916871
          ],
          "sourceModelNames": [
            "Bali 5.4 - 5 + 2 cab",
            "Bali 5.4 - 5 cab.",
            "Bali 5.4 - 6 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-3957928-yanmar-4jh80-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2023, 2021, 2020, 2019. 2019 six-guest-cabin vessel in Sicily only; no claim that every 2019-2023 hull has this option. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali54",
                "title": "Yacht Broker House: 2019 Bali 5.4, Sicily",
                "url": "https://www.ybh.gr/yachts/bali-54-2019",
                "kind": "documented-vessel-example",
                "locator": "Main Info / Engine Type and Overview",
                "evidence": "The broker identifies two Yanmar 4JH80 engines, 80 hp each, on this 2019 six-guest-cabin vessel; SD60 is separately a drive.",
                "note": "Catalogue build years: 2023, 2021, 2020, 2019. 2019 six-guest-cabin vessel in Sicily only; no claim that every 2019-2023 hull has this option. Vessel evidence is not universal factory fit. The broker identifies two Yanmar 4JH80 engines, 80 hp each, on this 2019 six-guest-cabin vessel; SD60 is separately a drive."
              },
              "sources": [
                {
                  "id": "cat-bali54",
                  "title": "Yacht Broker House: 2019 Bali 5.4, Sicily",
                  "url": "https://www.ybh.gr/yachts/bali-54-2019",
                  "kind": "documented-vessel-example",
                  "locator": "Main Info / Engine Type and Overview",
                  "evidence": "The broker identifies two Yanmar 4JH80 engines, 80 hp each, on this 2019 six-guest-cabin vessel; SD60 is separately a drive.",
                  "note": "Catalogue build years: 2023, 2021, 2020, 2019. 2019 six-guest-cabin vessel in Sicily only; no claim that every 2019-2023 hull has this option. Vessel evidence is not universal factory fit. The broker identifies two Yanmar 4JH80 engines, 80 hp each, on this 2019 six-guest-cabin vessel; SD60 is separately a drive."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 5.4\" \"engine model\"",
              "\"Bali 5.4\" \"4JH80\" broker catamarans"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-3957928-yanmar-4jh80-2"
        },
        {
          "name": "Bali 5.8",
          "boatType": "catamaran",
          "yachtModelId": 50968538,
          "sourceModelIds": [
            50968538
          ],
          "sourceModelNames": [
            "Bali 5.8 - 5 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-50968538-nanni-n4115-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Nanni",
              "engineModel": "N4.115",
              "engineDisplayName": "Nanni N4.115",
              "engineReferenceId": "review_nanni_n4115",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025. 2025 Angelina Yachting vessel in Biograd only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-bali58",
                "title": "Angelina Yachting: 2025 Bali 5.8, Biograd seller listing",
                "url": "https://www.boats.com/sailing-boats/2025-bali-5-8-9658486/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, port and starboard entries",
                "evidence": "Both 2025 propulsion engines are explicitly Nanni N4.115, 115 hp each.",
                "note": "Catalogue build years: 2026, 2025. 2025 Angelina Yachting vessel in Biograd only. Vessel evidence is not universal factory fit. Both 2025 propulsion engines are explicitly Nanni N4.115, 115 hp each."
              },
              "sources": [
                {
                  "id": "cat-bali58",
                  "title": "Angelina Yachting: 2025 Bali 5.8, Biograd seller listing",
                  "url": "https://www.boats.com/sailing-boats/2025-bali-5-8-9658486/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, port and starboard entries",
                  "evidence": "Both 2025 propulsion engines are explicitly Nanni N4.115, 115 hp each.",
                  "note": "Catalogue build years: 2026, 2025. 2025 Angelina Yachting vessel in Biograd only. Vessel evidence is not universal factory fit. Both 2025 propulsion engines are explicitly Nanni N4.115, 115 hp each."
                }
              ],
              "selectionPower": {
                "kw": 84.6,
                "sources": [
                  "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01010B_N4.115-2.pdf",
                  "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 169.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali 5.8\" \"engine model\"",
              "\"Bali 5.8\" \"N4.115\" dealer",
              "\"Bali 5.8\" \"N4.115\" site:croatia-yachting.hr",
              "\"Bali 5.8\" \"N4.115\" -site:boatshop24.com -site:inautia.com -site:youboat.com",
              "\"Bali 5.8\" \"N4.115\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-50968538-nanni-n4115-2"
        },
        {
          "name": "Bali Catsmart",
          "boatType": "catamaran",
          "yachtModelId": 32639133,
          "sourceModelIds": [
            32639133,
            33879732,
            35013994,
            41913353,
            50952719
          ],
          "sourceModelNames": [
            "Bali Catsmart - 4 + 1 cab.",
            "Bali Catsmart - 4 + 2 cab.",
            "Bali Catsmart - 4 cab.",
            "Bali Catsmart OW - 3 + 1 cab.",
            "Bali Catsmart OW - 3 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-32639133-nanni-n330-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Nanni",
              "engineModel": "N3.30",
              "engineDisplayName": "Nanni N3.30",
              "engineReferenceId": "review_nanni_n330",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023. A2024 manufacturer sheet explicitly identifies a pair of Nanni N3.30 engines, but its 19.6 hp rating appears inconsistent and is not adopted. The 2025 dealer listing also names N3.30 yet has generic option text naming Yanmar; it is corroboration of a published designation, not definitive individual-vessel identification or universal factory fit.",
              "source": {
                "id": "cat-catsmart",
                "title": "Croatia Yachting: 2025 Bali Catsmart, Kastela seller listing",
                "url": "https://www.boats.com/sailing-boats/2025-bali-catsmart-9860644/?showDealerLocator=1",
                "kind": "documented-vessel-example",
                "locator": "Propulsion / engine make and model",
                "evidence": "The dealer's 2025 Catsmart vessel listing identifies Nanni N3.30 propulsion and 22.4 kW per engine.",
                "note": "Catalogue build years: 2025, 2024, 2023. A2024 manufacturer sheet explicitly identifies a pair of Nanni N3.30 engines, but its 19.6 hp rating appears inconsistent and is not adopted. The 2025 dealer listing also names N3.30 yet has generic option text naming Yanmar; it is corroboration of a published designation, not definitive individual-vessel identification or universal factory fit. The dealer's 2025 Catsmart vessel listing identifies Nanni N3.30 propulsion and 22.4 kW per engine."
              },
              "sources": [
                {
                  "id": "cat-catsmart",
                  "title": "Croatia Yachting: 2025 Bali Catsmart, Kastela seller listing",
                  "url": "https://www.boats.com/sailing-boats/2025-bali-catsmart-9860644/?showDealerLocator=1",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion / engine make and model",
                  "evidence": "The dealer's 2025 Catsmart vessel listing identifies Nanni N3.30 propulsion and 22.4 kW per engine.",
                  "note": "Catalogue build years: 2025, 2024, 2023. A2024 manufacturer sheet explicitly identifies a pair of Nanni N3.30 engines, but its 19.6 hp rating appears inconsistent and is not adopted. The 2025 dealer listing also names N3.30 yet has generic option text naming Yanmar; it is corroboration of a published designation, not definitive individual-vessel identification or universal factory fit. The dealer's 2025 Catsmart vessel listing identifies Nanni N3.30 propulsion and 22.4 kW per engine."
                },
                {
                  "id": "cat-catsmart-manufacturer",
                  "title": "Bali Catsmart manufacturer specifications A2024",
                  "url": "https://www.bali-catamarans.com/wp-content/uploads/sites/4/2024/05/Caracteristiques-BALI-CATSMART-A2024-GB.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Search-indexed technical equipment / engine passage",
                  "evidence": "Manufacturer explicitly gives two Nanni engines with model N3.30. The line also gives an apparently inconsistent 19.6 hp rating and 29 hp option; no rating is adopted.",
                  "note": "Catalogue build years: 2025, 2024, 2023. A2024 manufacturer sheet explicitly identifies a pair of Nanni N3.30 engines, but its 19.6 hp rating appears inconsistent and is not adopted. The 2025 dealer listing also names N3.30 yet has generic option text naming Yanmar; it is corroboration of a published designation, not definitive individual-vessel identification or universal factory fit. Manufacturer explicitly gives two Nanni engines with model N3.30. The line also gives an apparently inconsistent 19.6 hp rating and 29 hp option; no rating is adopted."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXC01004-N3.30.pdf",
                  "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 42.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali Catsmart\" \"engine model\"",
              "\"Bali Catsmart\" \"N3.30\" site:croatia-yachting.hr",
              "\"Bali Catsmart\" \"N3.30\" dealer",
              "\"Bali Catsmart\" \"N3.30\" \"2\" \"2025\" \"Croatia Yachting\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-32639133-nanni-n330-2"
        },
        {
          "name": "Bali Catspace",
          "boatType": "catamaran",
          "yachtModelId": 10306352,
          "sourceModelIds": [
            10306352,
            12517319
          ],
          "sourceModelNames": [
            "Bali Catspace",
            "Bali Catspace OW"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-10306352-yanmar-3jh40-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. 2023 three-cabin owner's-version vessel at Port Pin Rolland only; not the motor-yacht variant. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-catspace",
                "title": "Port Pin Rolland: 2023 Bali Catspace owner version",
                "url": "https://www.boats.com/sailing-boats/2023-bali-catspace-9270626/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, Engine 1 and Engine 2",
                "evidence": "The original seller lists two Yanmar 3JH40 engines, each 40 hp, on this 2023 three-cabin Catspace.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. 2023 three-cabin owner's-version vessel at Port Pin Rolland only; not the motor-yacht variant. Vessel evidence is not universal factory fit. The original seller lists two Yanmar 3JH40 engines, each 40 hp, on this 2023 three-cabin Catspace."
              },
              "sources": [
                {
                  "id": "cat-catspace",
                  "title": "Port Pin Rolland: 2023 Bali Catspace owner version",
                  "url": "https://www.boats.com/sailing-boats/2023-bali-catspace-9270626/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, Engine 1 and Engine 2",
                  "evidence": "The original seller lists two Yanmar 3JH40 engines, each 40 hp, on this 2023 three-cabin Catspace.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. 2023 three-cabin owner's-version vessel at Port Pin Rolland only; not the motor-yacht variant. Vessel evidence is not universal factory fit. The original seller lists two Yanmar 3JH40 engines, each 40 hp, on this 2023 three-cabin Catspace."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bali Catspace\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10306352-yanmar-3jh40-2"
        }
      ]
    },
    {
      "name": "Bavaria",
      "models": [
        {
          "name": "Bavaria 30 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 100221,
          "sourceModelIds": [
            100221
          ],
          "sourceModelNames": [
            "Bavaria 30 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100221-volvopenta-d120b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20 B",
              "engineDisplayName": "Volvo Penta D1-20 B",
              "engineReferenceId": "volvo_d1_20b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2006. Only the broker's 2006 vessel; suffix retained. Not proof of every 2006 installation.",
              "source": {
                "id": "bavaria-research-30-2006",
                "title": "De Valk: 2006 Bavaria 30 Cruiser, reference 351983",
                "url": "https://www.devalk.nl/en/yachtbrokerage/351983/BAVARIA-30-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Specifications / Machinery; Year built",
                "evidence": "A 2006 vessel has one Volvo Penta D1-20 B, installed in 2006.",
                "note": "Dataset build years: 2006. Only the broker's 2006 vessel; suffix retained. Not proof of every 2006 installation. A 2006 vessel has one Volvo Penta D1-20 B, installed in 2006."
              },
              "sources": [
                {
                  "id": "bavaria-research-30-2006",
                  "title": "De Valk: 2006 Bavaria 30 Cruiser, reference 351983",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/351983/BAVARIA-30-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Specifications / Machinery; Year built",
                  "evidence": "A 2006 vessel has one Volvo Penta D1-20 B, installed in 2006.",
                  "note": "Dataset build years: 2006. Only the broker's 2006 vessel; suffix retained. Not proof of every 2006 installation. A 2006 vessel has one Volvo Penta D1-20 B, installed in 2006."
                }
              ],
              "selectionPower": {
                "kw": 14,
                "sources": [
                  "https://www.volvogroup.com/en/news-and-media/news/2008/aug/news-46596.html"
                ],
                "basis": "selection-power-reference",
                "approximate": true,
                "totalKw": 14
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Bavaria \"30 Cruiser\" \"D1-20\" 2006 brokerage"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100221-volvopenta-d120b-1"
        },
        {
          "name": "Bavaria 31 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 100214,
          "sourceModelIds": [
            100214
          ],
          "sourceModelNames": [
            "Bavaria 31 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100214-volvopenta-d120-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008, 2009. Only the Mola vessel first launched in 2008; 2009 boats not individually verified.",
              "source": {
                "id": "bavaria-research-31-2008",
                "title": "Mola: Bavaria 31 Cruiser first launched 2008",
                "url": "https://www.yachthandel-mola.de/Gebrauchtyacht.php?ID=698",
                "kind": "documented-vessel-example",
                "locator": "Technische Daten / Motor; Erstwasserung",
                "evidence": "The 2008 vessel specifies Volvo Penta D1-20.",
                "note": "Dataset build years: 2008, 2009. Only the Mola vessel first launched in 2008; 2009 boats not individually verified. The 2008 vessel specifies Volvo Penta D1-20."
              },
              "sources": [
                {
                  "id": "bavaria-research-31-2008",
                  "title": "Mola: Bavaria 31 Cruiser first launched 2008",
                  "url": "https://www.yachthandel-mola.de/Gebrauchtyacht.php?ID=698",
                  "kind": "documented-vessel-example",
                  "locator": "Technische Daten / Motor; Erstwasserung",
                  "evidence": "The 2008 vessel specifies Volvo Penta D1-20.",
                  "note": "Dataset build years: 2008, 2009. Only the Mola vessel first launched in 2008; 2009 boats not individually verified. The 2008 vessel specifies Volvo Penta D1-20."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Bavaria \"31 Cruiser\" \"D1-20\" 2008"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100214-volvopenta-d120-1"
        },
        {
          "name": "Bavaria 33 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 254,
          "sourceModelIds": [
            254
          ],
          "sourceModelNames": [
            "Bavaria 33 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-254-volvopenta-d120-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008. Same J&J manual's alternative engine. Filename says 2006, declaration contains a later date; not vessel-specific proof for 2008.",
              "source": {
                "id": "bavaria-research-33-manual",
                "title": "Bavaria 33 Cruiser owners and skippers manual, club-hosted original",
                "url": "https://www.bavariayacht.org/downloads/manual/Bavaria%2033%20Cruiser%202006.pdf",
                "kind": "manufacturer-manual",
                "locator": "Printed page 11, section 1.1.3 Motorization",
                "evidence": "The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date.",
                "note": "Dataset build years: 2008. Same J&J manual's alternative engine. Filename says 2006, declaration contains a later date; not vessel-specific proof for 2008. The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date."
              },
              "sources": [
                {
                  "id": "bavaria-research-33-manual",
                  "title": "Bavaria 33 Cruiser owners and skippers manual, club-hosted original",
                  "url": "https://www.bavariayacht.org/downloads/manual/Bavaria%2033%20Cruiser%202006.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Printed page 11, section 1.1.3 Motorization",
                  "evidence": "The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date.",
                  "note": "Dataset build years: 2008. Same J&J manual's alternative engine. Filename says 2006, declaration contains a later date; not vessel-specific proof for 2008. The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-254-volvopenta-d130-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008. J&J 33 Cruiser manual, section 1.1.3; not the Farr Cruiser 33. Manual lists alternatives, not a guaranteed fit on each 2008 boat.",
              "source": {
                "id": "bavaria-research-33-manual",
                "title": "Bavaria 33 Cruiser owners and skippers manual, club-hosted original",
                "url": "https://www.bavariayacht.org/downloads/manual/Bavaria%2033%20Cruiser%202006.pdf",
                "kind": "manufacturer-manual",
                "locator": "Printed page 11, section 1.1.3 Motorization",
                "evidence": "The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date.",
                "note": "Dataset build years: 2008. J&J 33 Cruiser manual, section 1.1.3; not the Farr Cruiser 33. Manual lists alternatives, not a guaranteed fit on each 2008 boat. The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date."
              },
              "sources": [
                {
                  "id": "bavaria-research-33-manual",
                  "title": "Bavaria 33 Cruiser owners and skippers manual, club-hosted original",
                  "url": "https://www.bavariayacht.org/downloads/manual/Bavaria%2033%20Cruiser%202006.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Printed page 11, section 1.1.3 Motorization",
                  "evidence": "The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date.",
                  "note": "Dataset build years: 2008. J&J 33 Cruiser manual, section 1.1.3; not the Farr Cruiser 33. Manual lists alternatives, not a guaranteed fit on each 2008 boat. The J&J-generation manual lists Volvo D1-30 at 20.9 kW or D1-20 at 13.8 kW; it does not classify either as standard. Filename says 2006 but the declaration carries a later date."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 33 Cruiser\" \"2008\" \"D1-30\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-254-volvopenta-d120-1"
        },
        {
          "name": "Bavaria 34 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 255,
          "sourceModelIds": [
            255
          ],
          "sourceModelNames": [
            "Bavaria 34 Cruiser - 2 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-255-volvopenta-d120b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20B",
              "engineDisplayName": "Volvo Penta D1-20B",
              "engineReferenceId": "volvo_d1_20b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008, 2009. J&J generation, 2008 example, reference 203653; not the later Farr Cruiser 34.",
              "source": {
                "id": "bavaria-research-34-2008-20",
                "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 203653",
                "url": "https://www.devalk.nl/en/yachtbrokerage/203653/BAVARIA-34-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Specifications / General and Machinery",
                "evidence": "The J&J-designed 2008 boat has one Volvo Penta D1-20B.",
                "note": "Dataset build years: 2008, 2009. J&J generation, 2008 example, reference 203653; not the later Farr Cruiser 34. The J&J-designed 2008 boat has one Volvo Penta D1-20B."
              },
              "sources": [
                {
                  "id": "bavaria-research-34-2008-20",
                  "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 203653",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/203653/BAVARIA-34-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Specifications / General and Machinery",
                  "evidence": "The J&J-designed 2008 boat has one Volvo Penta D1-20B.",
                  "note": "Dataset build years: 2008, 2009. J&J generation, 2008 example, reference 203653; not the later Farr Cruiser 34. The J&J-designed 2008 boat has one Volvo Penta D1-20B."
                }
              ],
              "selectionPower": {
                "kw": 14,
                "sources": [
                  "https://www.volvogroup.com/en/news-and-media/news/2008/aug/news-46596.html"
                ],
                "basis": "selection-power-reference",
                "approximate": true,
                "totalKw": 14
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-255-volvopenta-d130b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30B",
              "engineDisplayName": "Volvo Penta D1-30B",
              "engineReferenceId": "volvo_d1_30b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008, 2009. Separate J&J 2008 example, reference 806177; 2009 vessels not individually verified.",
              "source": {
                "id": "bavaria-research-34-2008-30",
                "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 806177",
                "url": "https://www.devalk.nl/en/yachtbrokerage/806177/BAVARIA-34-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Machinery / Type and Year installed",
                "evidence": "Another 2008 Bavaria 34 Cruiser has one Volvo Penta D1-30B, installed in 2008.",
                "note": "Dataset build years: 2008, 2009. Separate J&J 2008 example, reference 806177; 2009 vessels not individually verified. Another 2008 Bavaria 34 Cruiser has one Volvo Penta D1-30B, installed in 2008."
              },
              "sources": [
                {
                  "id": "bavaria-research-34-2008-30",
                  "title": "De Valk: 2008 Bavaria 34 Cruiser, reference 806177",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/806177/BAVARIA-34-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Machinery / Type and Year installed",
                  "evidence": "Another 2008 Bavaria 34 Cruiser has one Volvo Penta D1-30B, installed in 2008.",
                  "note": "Dataset build years: 2008, 2009. Separate J&J 2008 example, reference 806177; 2009 vessels not individually verified. Another 2008 Bavaria 34 Cruiser has one Volvo Penta D1-30B, installed in 2008."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://www.lundskov.eu/bavaria/manualer/Volvo/VolvoPentaD1-20-B_Dansk.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 34 Cruiser\" \"2008\" \"engine\" Volvo broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-255-volvopenta-d120b-1"
        },
        {
          "name": "Bavaria 36 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 516654,
          "sourceModelIds": [
            516654
          ],
          "sourceModelNames": [
            "Bavaria 36 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-516654-volvopenta-d120-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2012. Only Aquila, the 2012 Farr Avantgarde example sold by Ancasta. Independent alternative to the D1-30F example.",
              "source": {
                "id": "bavaria-research-36-2012-20",
                "title": "Ancasta: 2012 Bavaria 36 Cruiser Aquila, reference 50676",
                "url": "https://ancasta.com/boats-for-sale/used/sail/bavaria/36-cruiser/50676/",
                "kind": "documented-vessel-example",
                "locator": "Build; Machinery search-indexed passage",
                "evidence": "Aquila is a 2012 Farr-designed Avantgarde example with a single Volvo Penta D1-20 diesel.",
                "note": "Dataset build years: 2012. Only Aquila, the 2012 Farr Avantgarde example sold by Ancasta. Independent alternative to the D1-30F example. Aquila is a 2012 Farr-designed Avantgarde example with a single Volvo Penta D1-20 diesel."
              },
              "sources": [
                {
                  "id": "bavaria-research-36-2012-20",
                  "title": "Ancasta: 2012 Bavaria 36 Cruiser Aquila, reference 50676",
                  "url": "https://ancasta.com/boats-for-sale/used/sail/bavaria/36-cruiser/50676/",
                  "kind": "documented-vessel-example",
                  "locator": "Build; Machinery search-indexed passage",
                  "evidence": "Aquila is a 2012 Farr-designed Avantgarde example with a single Volvo Penta D1-20 diesel.",
                  "note": "Dataset build years: 2012. Only Aquila, the 2012 Farr Avantgarde example sold by Ancasta. Independent alternative to the D1-30F example. Aquila is a 2012 Farr-designed Avantgarde example with a single Volvo Penta D1-20 diesel."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-516654-volvopenta-d130f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30F",
              "engineDisplayName": "Volvo Penta D1-30F",
              "engineReferenceId": "volvo_d1_30f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2012. Only the 2012 Farr-designed two-cabin YachtBroker vessel.",
              "source": {
                "id": "bavaria-research-36-2012-30",
                "title": "YachtBroker: 2012 Bavaria 36 Cruiser, two-cabin boat",
                "url": "https://yachtbroker-network.com/boats-for-sale/bavaria-36-cruiser-2-cabin",
                "kind": "documented-vessel-example",
                "locator": "Boat details / Year, Engine; Engine year",
                "evidence": "The 2012 Farr-designed two-cabin vessel lists Volvo Penta D1-30F.",
                "note": "Dataset build years: 2012. Only the 2012 Farr-designed two-cabin YachtBroker vessel. The 2012 Farr-designed two-cabin vessel lists Volvo Penta D1-30F."
              },
              "sources": [
                {
                  "id": "bavaria-research-36-2012-30",
                  "title": "YachtBroker: 2012 Bavaria 36 Cruiser, two-cabin boat",
                  "url": "https://yachtbroker-network.com/boats-for-sale/bavaria-36-cruiser-2-cabin",
                  "kind": "documented-vessel-example",
                  "locator": "Boat details / Year, Engine; Engine year",
                  "evidence": "The 2012 Farr-designed two-cabin vessel lists Volvo Penta D1-30F.",
                  "note": "Dataset build years: 2012. Only the 2012 Farr-designed two-cabin YachtBroker vessel. The 2012 Farr-designed two-cabin vessel lists Volvo Penta D1-30F."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://www.cnml.eu/wp-content/uploads/2018/03/manuel-de-lutilisateur-D1-20F.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide-Utilisateur_Moteurs-Volvo-Penta-D1-et-D2_Manuel-7748803_version-2020_DB-MOTEURS.pdf",
                  "https://essexcountynj.org/wp-content/uploads/2020/08/Leisure-Diesel-Basic-Packages-MY-2021.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 36 Cruiser\" \"2012\" \"D1\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-516654-volvopenta-d120-1"
        },
        {
          "name": "Bavaria 37 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 1,
          "sourceModelIds": [
            1
          ],
          "sourceModelNames": [
            "Bavaria 37 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1-volvopenta-d130b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30B",
              "engineDisplayName": "Volvo Penta D1-30B",
              "engineReferenceId": "volvo_d1_30b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008. J&J Fun4Five: hull built 2007, launched March 2008, engine installed 2008. Build/launch distinction retained.",
              "source": {
                "id": "bavaria-research-37-2008-30",
                "title": "De Valk: Bavaria 37 Cruiser Fun4Five, reference 812006",
                "url": "https://www.devalk.nl/en/yachtbrokerage/812006/BAVARIA-37-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "General / Year built and Launched; Machinery",
                "evidence": "This J&J vessel was built in 2007, launched March 2008, and has one Volvo Penta D1-30B installed in 2008.",
                "note": "Dataset build years: 2008. J&J Fun4Five: hull built 2007, launched March 2008, engine installed 2008. Build/launch distinction retained. This J&J vessel was built in 2007, launched March 2008, and has one Volvo Penta D1-30B installed in 2008."
              },
              "sources": [
                {
                  "id": "bavaria-research-37-2008-30",
                  "title": "De Valk: Bavaria 37 Cruiser Fun4Five, reference 812006",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/812006/BAVARIA-37-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "General / Year built and Launched; Machinery",
                  "evidence": "This J&J vessel was built in 2007, launched March 2008, and has one Volvo Penta D1-30B installed in 2008.",
                  "note": "Dataset build years: 2008. J&J Fun4Five: hull built 2007, launched March 2008, engine installed 2008. Build/launch distinction retained. This J&J vessel was built in 2007, launched March 2008, and has one Volvo Penta D1-30B installed in 2008."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://www.lundskov.eu/bavaria/manualer/Volvo/VolvoPentaD1-20-B_Dansk.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008. White Whale's 2008 J&J-generation vessel in Dalmatia; not the later Farr Cruiser 37.",
              "source": {
                "id": "bavaria-research-37-2008-40",
                "title": "White Whale: 2008 Bavaria 37 Cruiser in Dalmatia",
                "url": "https://www.uwjachtmakelaar.nl/zeiljachten/4dbc552f-2a1e-4bb4-ba6b-90a7cd0dd367/bavaria-37-cruiser-20/",
                "kind": "documented-vessel-example",
                "locator": "Bouwjaar; Motor",
                "evidence": "A 2008 three-cabin example specifies Volvo Penta D2-40.",
                "note": "Dataset build years: 2008. White Whale's 2008 J&J-generation vessel in Dalmatia; not the later Farr Cruiser 37. A 2008 three-cabin example specifies Volvo Penta D2-40."
              },
              "sources": [
                {
                  "id": "bavaria-research-37-2008-40",
                  "title": "White Whale: 2008 Bavaria 37 Cruiser in Dalmatia",
                  "url": "https://www.uwjachtmakelaar.nl/zeiljachten/4dbc552f-2a1e-4bb4-ba6b-90a7cd0dd367/bavaria-37-cruiser-20/",
                  "kind": "documented-vessel-example",
                  "locator": "Bouwjaar; Motor",
                  "evidence": "A 2008 three-cabin example specifies Volvo Penta D2-40.",
                  "note": "Dataset build years: 2008. White Whale's 2008 J&J-generation vessel in Dalmatia; not the later Farr Cruiser 37. A 2008 three-cabin example specifies Volvo Penta D2-40."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 37 Cruiser\" \"2008\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1-volvopenta-d130b-1"
        },
        {
          "name": "Bavaria 38 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 100213,
          "sourceModelIds": [
            100213
          ],
          "sourceModelNames": [
            "Bavaria 38 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100213-volvopenta-d130-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2008. Only De Valk's 2008 two-cabin J&J 38 Cruiser example; not the older Bavaria 38 or 38 Match.",
              "source": {
                "id": "bavaria-research-38c-2008",
                "title": "De Valk: 2008 Bavaria 38 Cruiser, reference 202986",
                "url": "https://www.devalk.nl/en/yachtbrokerage/202986/BAVARIA-38-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Year built; Machinery / Type and Year installed",
                "evidence": "This two-cabin 2008 Bavaria 38 Cruiser has one Volvo Penta D1-30.",
                "note": "Dataset build years: 2008. Only De Valk's 2008 two-cabin J&J 38 Cruiser example; not the older Bavaria 38 or 38 Match. This two-cabin 2008 Bavaria 38 Cruiser has one Volvo Penta D1-30."
              },
              "sources": [
                {
                  "id": "bavaria-research-38c-2008",
                  "title": "De Valk: 2008 Bavaria 38 Cruiser, reference 202986",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/202986/BAVARIA-38-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Year built; Machinery / Type and Year installed",
                  "evidence": "This two-cabin 2008 Bavaria 38 Cruiser has one Volvo Penta D1-30.",
                  "note": "Dataset build years: 2008. Only De Valk's 2008 two-cabin J&J 38 Cruiser example; not the older Bavaria 38 or 38 Match. This two-cabin 2008 Bavaria 38 Cruiser has one Volvo Penta D1-30."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 38 Cruiser\" \"2008\" \"D1-30\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100213-volvopenta-d130-1"
        },
        {
          "name": "Bavaria 39 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 258,
          "sourceModelIds": [
            258
          ],
          "sourceModelNames": [
            "Bavaria 39 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-258-volvopenta-d130b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30B",
              "engineDisplayName": "Volvo Penta D1-30B",
              "engineReferenceId": "volvo_d1_30b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2005, 2007. Only De Valk reference 351628, built 2007; 2005 examples not individually verified.",
              "source": {
                "id": "bavaria-research-39-2007-30",
                "title": "De Valk: 2007 Bavaria 39 Cruiser, reference 351628",
                "url": "https://www.devalk.nl/nl/jachtmakelaardij/351628/BAVARIA-39-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Bouwjaar; Motor(en)",
                "evidence": "The 2007 boat lists one Volvo Penta D1-30B.",
                "note": "Dataset build years: 2005, 2007. Only De Valk reference 351628, built 2007; 2005 examples not individually verified. The 2007 boat lists one Volvo Penta D1-30B."
              },
              "sources": [
                {
                  "id": "bavaria-research-39-2007-30",
                  "title": "De Valk: 2007 Bavaria 39 Cruiser, reference 351628",
                  "url": "https://www.devalk.nl/nl/jachtmakelaardij/351628/BAVARIA-39-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Bouwjaar; Motor(en)",
                  "evidence": "The 2007 boat lists one Volvo Penta D1-30B.",
                  "note": "Dataset build years: 2005, 2007. Only De Valk reference 351628, built 2007; 2005 examples not individually verified. The 2007 boat lists one Volvo Penta D1-30B."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://www.lundskov.eu/bavaria/manualer/Volvo/VolvoPentaD1-20-B_Dansk.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-258-volvopenta-d240b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40B",
              "engineDisplayName": "Volvo Penta D2-40B",
              "engineReferenceId": "volvo_d2_40b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2005, 2007. Only the separate 2007 Network Yacht Brokers vessel; not evidence of universal or standard fit.",
              "source": {
                "id": "bavaria-research-39-2007-40",
                "title": "Network Yacht Brokers: 2007 Bavaria 39 Cruiser, reference 22F10156884",
                "url": "https://www.networkyachtbrokers.com/boats_for_sale/Bavaria_39_Cruiser-22F10156884.html/",
                "kind": "documented-vessel-example",
                "locator": "Year; Engine Make; Mechanical",
                "evidence": "The original broker specifies Volvo Penta D2-40B on this 2007 example.",
                "note": "Dataset build years: 2005, 2007. Only the separate 2007 Network Yacht Brokers vessel; not evidence of universal or standard fit. The original broker specifies Volvo Penta D2-40B on this 2007 example."
              },
              "sources": [
                {
                  "id": "bavaria-research-39-2007-40",
                  "title": "Network Yacht Brokers: 2007 Bavaria 39 Cruiser, reference 22F10156884",
                  "url": "https://www.networkyachtbrokers.com/boats_for_sale/Bavaria_39_Cruiser-22F10156884.html/",
                  "kind": "documented-vessel-example",
                  "locator": "Year; Engine Make; Mechanical",
                  "evidence": "The original broker specifies Volvo Penta D2-40B on this 2007 example.",
                  "note": "Dataset build years: 2005, 2007. Only the separate 2007 Network Yacht Brokers vessel; not evidence of universal or standard fit. The original broker specifies Volvo Penta D2-40B on this 2007 example."
                }
              ],
              "selectionPower": {
                "kw": 29,
                "sources": [
                  "https://www.volvogroup.com/en/news-and-media/news/2008/aug/news-46596.html"
                ],
                "basis": "selection-power-reference",
                "approximate": true,
                "totalKw": 29
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2005",
              "label": "2005 build",
              "year": 2005,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 39 Cruiser\" \"2007\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-258-volvopenta-d130b-1"
        },
        {
          "name": "Bavaria 40 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 259,
          "sourceModelIds": [
            259
          ],
          "sourceModelNames": [
            "Bavaria 40 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-259-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2009. Only the 2009 J&J 40 Cruiser vessel; not the later Farr Cruiser 40.",
              "source": {
                "id": "bavaria-research-40-2009",
                "title": "De Valk: 2009 Bavaria 40 Cruiser, reference 202170",
                "url": "https://www.devalk.nl/en/yachtbrokerage/202170/BAVARIA-40-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "General / Designer and Year built; Machinery",
                "evidence": "This J&J 2009 Bavaria 40 Cruiser has one Volvo Penta D2-40.",
                "note": "Dataset build years: 2009. Only the 2009 J&J 40 Cruiser vessel; not the later Farr Cruiser 40. This J&J 2009 Bavaria 40 Cruiser has one Volvo Penta D2-40."
              },
              "sources": [
                {
                  "id": "bavaria-research-40-2009",
                  "title": "De Valk: 2009 Bavaria 40 Cruiser, reference 202170",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/202170/BAVARIA-40-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "General / Designer and Year built; Machinery",
                  "evidence": "This J&J 2009 Bavaria 40 Cruiser has one Volvo Penta D2-40.",
                  "note": "Dataset build years: 2009. Only the 2009 J&J 40 Cruiser vessel; not the later Farr Cruiser 40. This J&J 2009 Bavaria 40 Cruiser has one Volvo Penta D2-40."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 40 Cruiser\" \"2009\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-259-volvopenta-d240-1"
        },
        {
          "name": "Bavaria 41",
          "boatType": "sailing-yacht",
          "yachtModelId": 121614,
          "sourceModelIds": [
            121614
          ],
          "sourceModelNames": [
            "Bavaria 41"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-121614-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2003. Only the broker's 2003 Bavaria 41; not the Farr Cruiser 41 introduced a decade later.",
              "source": {
                "id": "bavaria-research-41-2003",
                "title": "Agence Yachting Mediterranee: 2003 Bavaria 41",
                "url": "https://www.agence-yachting-med.fr/acheter-mon-bateau/bavaria-yachts-41-797",
                "kind": "documented-vessel-example",
                "locator": "Model, year and engine specification block",
                "evidence": "The original broker lists a 2003 Bavaria 41 with Volvo Penta D2-55.",
                "note": "Dataset build years: 2003. Only the broker's 2003 Bavaria 41; not the Farr Cruiser 41 introduced a decade later. The original broker lists a 2003 Bavaria 41 with Volvo Penta D2-55."
              },
              "sources": [
                {
                  "id": "bavaria-research-41-2003",
                  "title": "Agence Yachting Mediterranee: 2003 Bavaria 41",
                  "url": "https://www.agence-yachting-med.fr/acheter-mon-bateau/bavaria-yachts-41-797",
                  "kind": "documented-vessel-example",
                  "locator": "Model, year and engine specification block",
                  "evidence": "The original broker lists a 2003 Bavaria 41 with Volvo Penta D2-55.",
                  "note": "Dataset build years: 2003. Only the broker's 2003 Bavaria 41; not the Farr Cruiser 41 introduced a decade later. The original broker lists a 2003 Bavaria 41 with Volvo Penta D2-55."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2003",
              "label": "2003 build",
              "year": 2003,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 41\" \"2003\" \"D2-55\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-121614-volvopenta-d255-1"
        },
        {
          "name": "Bavaria 42 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 260,
          "sourceModelIds": [
            260
          ],
          "sourceModelNames": [
            "Bavaria 42 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-260-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2006, 2008. Only the J&J 2006 boat delivered March 2007, De Valk reference 200853.",
              "source": {
                "id": "bavaria-research-42-2006-40",
                "title": "De Valk: 2006 Bavaria 42 Cruiser, reference 200853",
                "url": "https://www.devalk.nl/en/yachtbrokerage/200853/BAVARIA-42-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Year built; Machinery",
                "evidence": "The J&J 2006 boat, delivered March 2007, has one Volvo Penta D2-40.",
                "note": "Dataset build years: 2006, 2008. Only the J&J 2006 boat delivered March 2007, De Valk reference 200853. The J&J 2006 boat, delivered March 2007, has one Volvo Penta D2-40."
              },
              "sources": [
                {
                  "id": "bavaria-research-42-2006-40",
                  "title": "De Valk: 2006 Bavaria 42 Cruiser, reference 200853",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/200853/BAVARIA-42-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Year built; Machinery",
                  "evidence": "The J&J 2006 boat, delivered March 2007, has one Volvo Penta D2-40.",
                  "note": "Dataset build years: 2006, 2008. Only the J&J 2006 boat delivered March 2007, De Valk reference 200853. The J&J 2006 boat, delivered March 2007, has one Volvo Penta D2-40."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-260-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2006, 2008. Separate 2006 Boatshed example, reference 351444. Neither example establishes the 2008 boats' installation.",
              "source": {
                "id": "bavaria-research-42-2006-55",
                "title": "Boatshed Portsmouth: 2006 Bavaria 42 Cruiser, reference 351444",
                "url": "https://www.boatshed.com/bavaria_42_cruiser-boat-351444.html",
                "kind": "documented-vessel-example",
                "locator": "Year; Mechanical / Engine make and model",
                "evidence": "This 2006 example has one Volvo Penta D2-55.",
                "note": "Dataset build years: 2006, 2008. Separate 2006 Boatshed example, reference 351444. Neither example establishes the 2008 boats' installation. This 2006 example has one Volvo Penta D2-55."
              },
              "sources": [
                {
                  "id": "bavaria-research-42-2006-55",
                  "title": "Boatshed Portsmouth: 2006 Bavaria 42 Cruiser, reference 351444",
                  "url": "https://www.boatshed.com/bavaria_42_cruiser-boat-351444.html",
                  "kind": "documented-vessel-example",
                  "locator": "Year; Mechanical / Engine make and model",
                  "evidence": "This 2006 example has one Volvo Penta D2-55.",
                  "note": "Dataset build years: 2006, 2008. Separate 2006 Boatshed example, reference 351444. Neither example establishes the 2008 boats' installation. This 2006 example has one Volvo Penta D2-55."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 42 Cruiser\" \"2006\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-260-volvopenta-d240-1"
        },
        {
          "name": "Bavaria 44",
          "boatType": "sailing-yacht",
          "yachtModelId": 264,
          "sourceModelIds": [
            264
          ],
          "sourceModelNames": [
            "Bavaria 44"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-264-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D 2-55",
              "engineDisplayName": "Volvo Penta D 2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2002, 2003, 2005. Only Del Mar, a 2003 three-cabin Bavaria 44. Spacing follows the source; 2002 and 2005 builds not individually verified.",
              "source": {
                "id": "bavaria-research-44-2003",
                "title": "De Valk: 2003 Bavaria 44 three-cabin Del Mar, reference 90658",
                "url": "https://www.devalk.nl/en/yachtbrokerage/90658/BAVARIA-44---3.html",
                "kind": "documented-vessel-example",
                "locator": "General / Year built; Machinery",
                "evidence": "The 2003 boat lists one Volvo Penta D 2-55, installed in 2003.",
                "note": "Dataset build years: 2002, 2003, 2005. Only Del Mar, a 2003 three-cabin Bavaria 44. Spacing follows the source; 2002 and 2005 builds not individually verified. The 2003 boat lists one Volvo Penta D 2-55, installed in 2003."
              },
              "sources": [
                {
                  "id": "bavaria-research-44-2003",
                  "title": "De Valk: 2003 Bavaria 44 three-cabin Del Mar, reference 90658",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/90658/BAVARIA-44---3.html",
                  "kind": "documented-vessel-example",
                  "locator": "General / Year built; Machinery",
                  "evidence": "The 2003 boat lists one Volvo Penta D 2-55, installed in 2003.",
                  "note": "Dataset build years: 2002, 2003, 2005. Only Del Mar, a 2003 three-cabin Bavaria 44. Spacing follows the source; 2002 and 2005 builds not individually verified. The 2003 boat lists one Volvo Penta D 2-55, installed in 2003."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2005",
              "label": "2005 build",
              "year": 2005,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2003",
              "label": "2003 build",
              "year": 2003,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2002",
              "label": "2002 build",
              "year": 2002,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 44\" \"2003\" site:devalk.nl engine"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-264-volvopenta-d255-1"
        },
        {
          "name": "Bavaria 46 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 261,
          "sourceModelIds": [
            261
          ],
          "sourceModelNames": [
            "Bavaria 46 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-261-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2006, 2007. J&J 2007 vessel; not the later Farr Cruiser 46. 2006 builds not individually verified.",
              "source": {
                "id": "bavaria-research-46-2007-55",
                "title": "Nord Est Yacht: Bavaria 46 Cruiser, 2007, listing 667",
                "url": "https://www.nordestyacht.it/bavaria-46-cruiser/667",
                "kind": "documented-vessel-example",
                "locator": "Scheda tecnica / Modello motori",
                "evidence": "The 2007 vessel lists one Volvo Penta D2-55.",
                "note": "Dataset build years: 2006, 2007. J&J 2007 vessel; not the later Farr Cruiser 46. 2006 builds not individually verified. The 2007 vessel lists one Volvo Penta D2-55."
              },
              "sources": [
                {
                  "id": "bavaria-research-46-2007-55",
                  "title": "Nord Est Yacht: Bavaria 46 Cruiser, 2007, listing 667",
                  "url": "https://www.nordestyacht.it/bavaria-46-cruiser/667",
                  "kind": "documented-vessel-example",
                  "locator": "Scheda tecnica / Modello motori",
                  "evidence": "The 2007 vessel lists one Volvo Penta D2-55.",
                  "note": "Dataset build years: 2006, 2007. J&J 2007 vessel; not the later Farr Cruiser 46. 2006 builds not individually verified. The 2007 vessel lists one Volvo Penta D2-55."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-261-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2006, 2007. Separate 2007 J&J boat with explicitly described engine upgrade. Source does not prove when that upgrade was fitted.",
              "source": {
                "id": "bavaria-research-46-2007-75",
                "title": "Diamond Yachts: J&J Bavaria 46 Cruiser, 2007",
                "url": "https://www.diamond-yachts.de/gebrauchtboote/details/bavaria-46-cruiser.html",
                "kind": "documented-vessel-example",
                "locator": "Rahmendaten; Maschine; Key Facts",
                "evidence": "The original broker explicitly identifies a 2007 J&J boat with an engine upgrade to Volvo Penta D2-75.",
                "note": "Dataset build years: 2006, 2007. Separate 2007 J&J boat with explicitly described engine upgrade. Source does not prove when that upgrade was fitted. The original broker explicitly identifies a 2007 J&J boat with an engine upgrade to Volvo Penta D2-75."
              },
              "sources": [
                {
                  "id": "bavaria-research-46-2007-75",
                  "title": "Diamond Yachts: J&J Bavaria 46 Cruiser, 2007",
                  "url": "https://www.diamond-yachts.de/gebrauchtboote/details/bavaria-46-cruiser.html",
                  "kind": "documented-vessel-example",
                  "locator": "Rahmendaten; Maschine; Key Facts",
                  "evidence": "The original broker explicitly identifies a 2007 J&J boat with an engine upgrade to Volvo Penta D2-75.",
                  "note": "Dataset build years: 2006, 2007. Separate 2007 J&J boat with explicitly described engine upgrade. Source does not prove when that upgrade was fitted. The original broker explicitly identifies a 2007 J&J boat with an engine upgrade to Volvo Penta D2-75."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 46 Cruiser\" \"2007\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-261-volvopenta-d255-1"
        },
        {
          "name": "Bavaria 47 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 100255,
          "sourceModelIds": [
            100255
          ],
          "sourceModelNames": [
            "Bavaria 47 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100255-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2009. Only Naboo, the 2009 Bavaria 47 Cruiser offered by The One Yacht.",
              "source": {
                "id": "bavaria-research-47-2009",
                "title": "The One Yacht: 2009 Bavaria 47 Cruiser Naboo",
                "url": "https://theoneyacht.com/yacht/bavaria-47-cruiser/",
                "kind": "documented-vessel-example",
                "locator": "Key Specifications; Engine & Equipment",
                "evidence": "Naboo is a 2009 Bavaria 47 Cruiser fitted with Volvo Penta D2-55.",
                "note": "Dataset build years: 2009. Only Naboo, the 2009 Bavaria 47 Cruiser offered by The One Yacht. Naboo is a 2009 Bavaria 47 Cruiser fitted with Volvo Penta D2-55."
              },
              "sources": [
                {
                  "id": "bavaria-research-47-2009",
                  "title": "The One Yacht: 2009 Bavaria 47 Cruiser Naboo",
                  "url": "https://theoneyacht.com/yacht/bavaria-47-cruiser/",
                  "kind": "documented-vessel-example",
                  "locator": "Key Specifications; Engine & Equipment",
                  "evidence": "Naboo is a 2009 Bavaria 47 Cruiser fitted with Volvo Penta D2-55.",
                  "note": "Dataset build years: 2009. Only Naboo, the 2009 Bavaria 47 Cruiser offered by The One Yacht. Naboo is a 2009 Bavaria 47 Cruiser fitted with Volvo Penta D2-55."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 47 Cruiser\" \"2009\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100255-volvopenta-d255-1"
        },
        {
          "name": "Bavaria 49",
          "boatType": "sailing-yacht",
          "yachtModelId": 262,
          "sourceModelIds": [
            262
          ],
          "sourceModelNames": [
            "Bavaria 49"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-262-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2004, 2005. Only Xboat reference 6118, built 2004, described as original engine. Not universal factory evidence for 2004 or 2005.",
              "source": {
                "id": "bavaria-research-49-2004",
                "title": "Xboat: Bavaria 49, 2004, reference 6118",
                "url": "https://www.xboat.uk/PDFs-6118-BAVARIA_BAVARIA-49",
                "kind": "documented-vessel-example",
                "locator": "Main datas; Engines; Owner's Comments",
                "evidence": "The original broker sheet identifies one Volvo Penta D2-75 on a 2004 boat and describes it as the original engine.",
                "note": "Dataset build years: 2004, 2005. Only Xboat reference 6118, built 2004, described as original engine. Not universal factory evidence for 2004 or 2005. The original broker sheet identifies one Volvo Penta D2-75 on a 2004 boat and describes it as the original engine."
              },
              "sources": [
                {
                  "id": "bavaria-research-49-2004",
                  "title": "Xboat: Bavaria 49, 2004, reference 6118",
                  "url": "https://www.xboat.uk/PDFs-6118-BAVARIA_BAVARIA-49",
                  "kind": "documented-vessel-example",
                  "locator": "Main datas; Engines; Owner's Comments",
                  "evidence": "The original broker sheet identifies one Volvo Penta D2-75 on a 2004 boat and describes it as the original engine.",
                  "note": "Dataset build years: 2004, 2005. Only Xboat reference 6118, built 2004, described as original engine. Not universal factory evidence for 2004 or 2005. The original broker sheet identifies one Volvo Penta D2-75 on a 2004 boat and describes it as the original engine."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2005",
              "label": "2005 build",
              "year": 2005,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2004",
              "label": "2004 build",
              "year": 2004,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 49\" \"2004\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-262-volvopenta-d275-1"
        },
        {
          "name": "Bavaria 50 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 100225,
          "sourceModelIds": [
            100225,
            601316
          ],
          "sourceModelNames": [
            "Bavaria 50 Cruiser",
            "Bavaria 50 Cruiser - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100225-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2 75",
              "engineDisplayName": "Volvo Penta D2 75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2005, 2007, 2008. Only the J&J-era 2007 vessel, De Valk reference 800153. Not the later Farr Cruiser 50; 2005/2008 boats unverified.",
              "source": {
                "id": "bavaria-research-50-2007",
                "title": "De Valk: 2007 Bavaria 50 Cruiser, reference 800153",
                "url": "https://www.devalk.nl/en/yachtbrokerage/800153/BAVARIA-50-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Year built; Machinery / Type",
                "evidence": "The 2007 Bavaria 50 Cruiser has one Volvo Penta D2 75.",
                "note": "Dataset build years: 2005, 2007, 2008. Only the J&J-era 2007 vessel, De Valk reference 800153. Not the later Farr Cruiser 50; 2005/2008 boats unverified. The 2007 Bavaria 50 Cruiser has one Volvo Penta D2 75."
              },
              "sources": [
                {
                  "id": "bavaria-research-50-2007",
                  "title": "De Valk: 2007 Bavaria 50 Cruiser, reference 800153",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/800153/BAVARIA-50-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Year built; Machinery / Type",
                  "evidence": "The 2007 Bavaria 50 Cruiser has one Volvo Penta D2 75.",
                  "note": "Dataset build years: 2005, 2007, 2008. Only the J&J-era 2007 vessel, De Valk reference 800153. Not the later Farr Cruiser 50; 2005/2008 boats unverified. The 2007 Bavaria 50 Cruiser has one Volvo Penta D2 75."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2005",
              "label": "2005 build",
              "year": 2005,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 50 Cruiser\" \"2007\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100225-volvopenta-d275-1"
        },
        {
          "name": "Bavaria 51 Cruiser",
          "boatType": "sailing-yacht",
          "yachtModelId": 100253,
          "sourceModelIds": [
            100253
          ],
          "sourceModelNames": [
            "Bavaria 51 Cruiser"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100253-volvopenta-d275b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75B",
              "engineDisplayName": "Volvo Penta D2-75B",
              "engineReferenceId": "volvo_d2_75b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2010. Only Boatery's 2010 vessel. Its dimensions differ from later Farr Cruiser 51; do not merge generations or drop B suffix.",
              "source": {
                "id": "bavaria-research-51-2010",
                "title": "Boatery: Bavaria 51 Cruiser, 2010 vessel specification",
                "url": "https://boatery.dk/wp-content/uploads/2024/10/boatery_bavaria_51_cruiser.pdf",
                "kind": "documented-vessel-example",
                "locator": "year; Engine; Engine Year",
                "evidence": "The original broker sheet lists a 2010 Bavaria 51 Cruiser with one Volvo Penta D2-75B, engine year 2010.",
                "note": "Dataset build years: 2010. Only Boatery's 2010 vessel. Its dimensions differ from later Farr Cruiser 51; do not merge generations or drop B suffix. The original broker sheet lists a 2010 Bavaria 51 Cruiser with one Volvo Penta D2-75B, engine year 2010."
              },
              "sources": [
                {
                  "id": "bavaria-research-51-2010",
                  "title": "Boatery: Bavaria 51 Cruiser, 2010 vessel specification",
                  "url": "https://boatery.dk/wp-content/uploads/2024/10/boatery_bavaria_51_cruiser.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "year; Engine; Engine Year",
                  "evidence": "The original broker sheet lists a 2010 Bavaria 51 Cruiser with one Volvo Penta D2-75B, engine year 2010.",
                  "note": "Dataset build years: 2010. Only Boatery's 2010 vessel. Its dimensions differ from later Farr Cruiser 51; do not merge generations or drop B suffix. The original broker sheet lists a 2010 Bavaria 51 Cruiser with one Volvo Penta D2-75B, engine year 2010."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvogroup.com/en/news-and-media/news/2008/aug/news-46596.html"
                ],
                "basis": "selection-power-reference",
                "approximate": true,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2010",
              "label": "2010 build",
              "year": 2010,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria 51 Cruiser\" \"2010\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100253-volvopenta-d275b-1"
        },
        {
          "name": "Bavaria C38",
          "boatType": "sailing-yacht",
          "yachtModelId": 12414951,
          "sourceModelIds": [
            12414951
          ],
          "sourceModelNames": [
            "Bavaria C38"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-12414951-yanmar-3ym30ae-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2022, 2023, 2024, 2025. Only Maritima Courtage's C38 with engine dated November 2022. The broker explicitly names 3YM30AE; Yanmar rates this version at 3200 rpm. AE suffix retained; do not map it to the legacy 3600-rpm 3YM30 consumption curve. This observed installation neither identifies every C38 nor resolves the price list's abbreviated 3YM30 nomenclature for other boats.",
              "source": {
                "id": "bavaria-research-c38-ae",
                "title": "Maritima Courtage: Bavaria C38 with November 2022 engine",
                "url": "https://www.maritima-courtage.fr/annonces/bavaria-c38/",
                "kind": "documented-vessel-example",
                "locator": "Moteur",
                "evidence": "The original broker explicitly names Yanmar 3YM30AE, engine date 11/2022. It does not establish a universal factory engine.",
                "note": "Dataset build years: 2022, 2023, 2024, 2025. Only Maritima Courtage's C38 with engine dated November 2022. The broker explicitly names 3YM30AE; Yanmar rates this version at 3200 rpm. AE suffix retained; do not map it to the legacy 3600-rpm 3YM30 consumption curve. This observed installation neither identifies every C38 nor resolves the price list's abbreviated 3YM30 nomenclature for other boats. The original broker explicitly names Yanmar 3YM30AE, engine date 11/2022. It does not establish a universal factory engine."
              },
              "sources": [
                {
                  "id": "bavaria-research-c38-ae",
                  "title": "Maritima Courtage: Bavaria C38 with November 2022 engine",
                  "url": "https://www.maritima-courtage.fr/annonces/bavaria-c38/",
                  "kind": "documented-vessel-example",
                  "locator": "Moteur",
                  "evidence": "The original broker explicitly names Yanmar 3YM30AE, engine date 11/2022. It does not establish a universal factory engine.",
                  "note": "Dataset build years: 2022, 2023, 2024, 2025. Only Maritima Courtage's C38 with engine dated November 2022. The broker explicitly names 3YM30AE; Yanmar rates this version at 3200 rpm. AE suffix retained; do not map it to the legacy 3600-rpm 3YM30 consumption curve. This observed installation neither identifies every C38 nor resolves the price list's abbreviated 3YM30 nomenclature for other boats. The original broker explicitly names Yanmar 3YM30AE, engine date 11/2022. It does not establish a universal factory engine."
                },
                {
                  "id": "bavaria-research-yanmar-3ym30ae-spec",
                  "title": "Yanmar Marine International: 3YM30AE specifications",
                  "url": "https://www.yanmar.com/marine/product/engines/3ym30ae/",
                  "kind": "manufacturer-specification",
                  "locator": "Specifications / Rated output and Rated Speed",
                  "evidence": "Yanmar explicitly rates 3YM30AE at 21.3 kW and 3200 rpm. This engine specification does not identify any C38 installation by itself.",
                  "note": "Dataset build years: 2022, 2023, 2024, 2025. Only Maritima Courtage's C38 with engine dated November 2022. The broker explicitly names 3YM30AE; Yanmar rates this version at 3200 rpm. AE suffix retained; do not map it to the legacy 3600-rpm 3YM30 consumption curve. This observed installation neither identifies every C38 nor resolves the price list's abbreviated 3YM30 nomenclature for other boats. Yanmar explicitly rates 3YM30AE at 21.3 kW and 3200 rpm. This engine specification does not identify any C38 installation by itself."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-12414951-yanmar-3ym30-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": null,
              "curveAvailable": false,
              "curveBlockedReason": "Published family label omits the AE suffix and rated RPM; confirm the full engine code before using a curve.",
              "engineCount": 1,
              "applicability": "Dataset build years: 2022, 2023, 2024, 2025. The 3/2022 price list literally prints 3YM30 without AE or rated RPM. Marketing-name/engine-version ambiguity: this may be abbreviated family nomenclature, not proof of a legacy 3YM30 installation. Yanmar separately lists 3YM30 at 3600 rpm and 3YM30AE at 3200 rpm, both 21.3 kW. Preserve the sales label but do not automatically select the legacy 3600-rpm 3YM30 curve, substitute AE, or assert that every C38 has either version. Confirm the full engine code from vessel documentation or its data plate before choosing a curve.",
              "source": {
                "id": "bavaria-research-c38-price",
                "title": "Bavaria C38 manufacturer price list 3/2022, dealer-hosted original",
                "url": "https://bavaria-yachts.ru/Pricelist_SailingYachts_03-2022_EN/Pricelist_C38_03-2022_220412_EN.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1 / Technical Data / Engine standard and option",
                "evidence": "The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE.",
                "note": "Dataset build years: 2022, 2023, 2024, 2025. The 3/2022 price list literally prints 3YM30 without AE or rated RPM. Marketing-name/engine-version ambiguity: this may be abbreviated family nomenclature, not proof of a legacy 3YM30 installation. Yanmar separately lists 3YM30 at 3600 rpm and 3YM30AE at 3200 rpm, both 21.3 kW. Preserve the sales label but do not automatically select the legacy 3600-rpm 3YM30 curve, substitute AE, or assert that every C38 has either version. Confirm the full engine code from vessel documentation or its data plate before choosing a curve. The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE."
              },
              "sources": [
                {
                  "id": "bavaria-research-c38-price",
                  "title": "Bavaria C38 manufacturer price list 3/2022, dealer-hosted original",
                  "url": "https://bavaria-yachts.ru/Pricelist_SailingYachts_03-2022_EN/Pricelist_C38_03-2022_220412_EN.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1 / Technical Data / Engine standard and option",
                  "evidence": "The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE.",
                  "note": "Dataset build years: 2022, 2023, 2024, 2025. The 3/2022 price list literally prints 3YM30 without AE or rated RPM. Marketing-name/engine-version ambiguity: this may be abbreviated family nomenclature, not proof of a legacy 3YM30 installation. Yanmar separately lists 3YM30 at 3600 rpm and 3YM30AE at 3200 rpm, both 21.3 kW. Preserve the sales label but do not automatically select the legacy 3600-rpm 3YM30 curve, substitute AE, or assert that every C38 has either version. Confirm the full engine code from vessel documentation or its data plate before choosing a curve. The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE."
                },
                {
                  "id": "bavaria-research-yanmar-ym-versions",
                  "title": "Yanmar SD25 operation manual, June 2019: applicable engine versions",
                  "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0032_2019.06.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Printed page 37 / Specifications / Applicable engine model; search-indexed table",
                  "evidence": "The engine-compatibility table separately names 3YM30 at 21.3 kW and 3600 rpm, and 3YM30AE at 21.3 kW and 3200 rpm. Equal power cannot identify the version; SD25 itself is a drive, not an engine.",
                  "note": "Dataset build years: 2022, 2023, 2024, 2025. The 3/2022 price list literally prints 3YM30 without AE or rated RPM. Marketing-name/engine-version ambiguity: this may be abbreviated family nomenclature, not proof of a legacy 3YM30 installation. Yanmar separately lists 3YM30 at 3600 rpm and 3YM30AE at 3200 rpm, both 21.3 kW. Preserve the sales label but do not automatically select the legacy 3600-rpm 3YM30 curve, substitute AE, or assert that every C38 has either version. Confirm the full engine code from vessel documentation or its data plate before choosing a curve. The engine-compatibility table separately names 3YM30 at 21.3 kW and 3600 rpm, and 3YM30AE at 21.3 kW and 3200 rpm. Equal power cannot identify the version; SD25 itself is a drive, not an engine."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-12414951-yanmar-3jh40-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2022, 2023, 2024, 2025. Manufacturer price list 3/2022 explicitly lists this option; other model years require their own specification.",
              "source": {
                "id": "bavaria-research-c38-price",
                "title": "Bavaria C38 manufacturer price list 3/2022, dealer-hosted original",
                "url": "https://bavaria-yachts.ru/Pricelist_SailingYachts_03-2022_EN/Pricelist_C38_03-2022_220412_EN.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1 / Technical Data / Engine standard and option",
                "evidence": "The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE.",
                "note": "Dataset build years: 2022, 2023, 2024, 2025. Manufacturer price list 3/2022 explicitly lists this option; other model years require their own specification. The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE."
              },
              "sources": [
                {
                  "id": "bavaria-research-c38-price",
                  "title": "Bavaria C38 manufacturer price list 3/2022, dealer-hosted original",
                  "url": "https://bavaria-yachts.ru/Pricelist_SailingYachts_03-2022_EN/Pricelist_C38_03-2022_220412_EN.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1 / Technical Data / Engine standard and option",
                  "evidence": "The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE.",
                  "note": "Dataset build years: 2022, 2023, 2024, 2025. Manufacturer price list 3/2022 explicitly lists this option; other model years require their own specification. The 3/2022 list labels Yanmar 3YM30 standard at 21.3 kW and Yanmar 3JH40 optional. It gives no standard-engine suffix or rated RPM, so it does not distinguish the legacy 3YM30 from an abbreviated marketing reference to 3YM30AE."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C38\" Yanmar standard optional engine",
              "Yanmar 3YM30AE 3200 3YM30 3600 site:yanmar.com",
              "site:yanmar.com \"3YM30\" \"3YM30AE\" \"3600\" \"3200\" \"21.3\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12414951-yanmar-3ym30ae-1"
        },
        {
          "name": "Bavaria C38 Style",
          "boatType": "sailing-yacht",
          "yachtModelId": 22148402,
          "sourceModelIds": [
            22148402
          ],
          "sourceModelNames": [
            "Bavaria C38 Style"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-22148402-yanmar-3jh40-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2025. Only AMS's 2025 C38 explicitly carrying the Style pack. This supports a Style-equipped vessel, not a separate factory specification for every Style-labelled catalogue boat.",
              "source": {
                "id": "bavaria-research-c38-style2025",
                "title": "AMS Yachting: 2025 Bavaria C38, Full LOA with Style pack",
                "url": "https://amsyachting.com/bateaux/bavaria-c38-2025-en-version-full-loa/",
                "kind": "documented-vessel-example",
                "locator": "Opening boat description and motorisation",
                "evidence": "This 2025 C38 explicitly includes the Style pack and a Yanmar 3JH40. Style applicability is limited to that described package-equipped boat.",
                "note": "Dataset build years: 2025. Only AMS's 2025 C38 explicitly carrying the Style pack. This supports a Style-equipped vessel, not a separate factory specification for every Style-labelled catalogue boat. This 2025 C38 explicitly includes the Style pack and a Yanmar 3JH40. Style applicability is limited to that described package-equipped boat."
              },
              "sources": [
                {
                  "id": "bavaria-research-c38-style2025",
                  "title": "AMS Yachting: 2025 Bavaria C38, Full LOA with Style pack",
                  "url": "https://amsyachting.com/bateaux/bavaria-c38-2025-en-version-full-loa/",
                  "kind": "documented-vessel-example",
                  "locator": "Opening boat description and motorisation",
                  "evidence": "This 2025 C38 explicitly includes the Style pack and a Yanmar 3JH40. Style applicability is limited to that described package-equipped boat.",
                  "note": "Dataset build years: 2025. Only AMS's 2025 C38 explicitly carrying the Style pack. This supports a Style-equipped vessel, not a separate factory specification for every Style-labelled catalogue boat. This 2025 C38 explicitly includes the Style pack and a Yanmar 3JH40. Style applicability is limited to that described package-equipped boat."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C38 Style\" \"3JH40\" \"2025\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-22148402-yanmar-3jh40-1"
        },
        {
          "name": "Bavaria C42",
          "boatType": "sailing-yacht",
          "yachtModelId": 10501555,
          "sourceModelIds": [
            10501555
          ],
          "sourceModelNames": [
            "Bavaria C42"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10501555-yanmar-3jh40-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Undated dealer C42 specification; engine identity explicit, but no claim that every 2020-2025 boat uses it.",
              "source": {
                "id": "bavaria-research-c42-40",
                "title": "Bavaria Yachts Hungary: C42 technical data",
                "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c42/",
                "kind": "authorized-dealer-specification",
                "locator": "Technikai adatok / Motor-tipus",
                "evidence": "The dealer specification names Yanmar 3JH40 at 29.4 kW / 40 hp.",
                "note": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Undated dealer C42 specification; engine identity explicit, but no claim that every 2020-2025 boat uses it. The dealer specification names Yanmar 3JH40 at 29.4 kW / 40 hp."
              },
              "sources": [
                {
                  "id": "bavaria-research-c42-40",
                  "title": "Bavaria Yachts Hungary: C42 technical data",
                  "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c42/",
                  "kind": "authorized-dealer-specification",
                  "locator": "Technikai adatok / Motor-tipus",
                  "evidence": "The dealer specification names Yanmar 3JH40 at 29.4 kW / 40 hp.",
                  "note": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Undated dealer C42 specification; engine identity explicit, but no claim that every 2020-2025 boat uses it. The dealer specification names Yanmar 3JH40 at 29.4 kW / 40 hp."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-10501555-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Only Clipper Marine's 2020 C42 with upgraded engine; a distinct observed alternative.",
              "source": {
                "id": "bavaria-research-c42-57",
                "title": "Clipper Marine: 2020 Bavaria C42",
                "url": "https://www.clippermarine.co.uk/boats-for-sale~boat-feed-detail~-bavaria-c42~57460",
                "kind": "documented-vessel-example",
                "locator": "Description; Options; Propulsion",
                "evidence": "The 2020 example has one Yanmar 4JH57, explicitly described as an engine upgrade.",
                "note": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Only Clipper Marine's 2020 C42 with upgraded engine; a distinct observed alternative. The 2020 example has one Yanmar 4JH57, explicitly described as an engine upgrade."
              },
              "sources": [
                {
                  "id": "bavaria-research-c42-57",
                  "title": "Clipper Marine: 2020 Bavaria C42",
                  "url": "https://www.clippermarine.co.uk/boats-for-sale~boat-feed-detail~-bavaria-c42~57460",
                  "kind": "documented-vessel-example",
                  "locator": "Description; Options; Propulsion",
                  "evidence": "The 2020 example has one Yanmar 4JH57, explicitly described as an engine upgrade.",
                  "note": "Dataset build years: 2020, 2022, 2023, 2024, 2025. Only Clipper Marine's 2020 C42 with upgraded engine; a distinct observed alternative. The 2020 example has one Yanmar 4JH57, explicitly described as an engine upgrade."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C42\" Yanmar engine 3JH 4JH"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10501555-yanmar-3jh40-1"
        },
        {
          "name": "Bavaria C45",
          "boatType": "sailing-yacht",
          "yachtModelId": 8097042,
          "sourceModelIds": [
            8097042,
            8768025
          ],
          "sourceModelNames": [
            "Bavaria C45 - 4 cab.",
            "Bavaria C45 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-8097042-yanmar-4jh57-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2019, 2023, 2024. Cossutti C45 brochure's standard configuration; brochure edition is not a guarantee for every dataset build.",
              "source": {
                "id": "bavaria-research-c45-brochure",
                "title": "Bavaria C45 manufacturer C-Line brochure, Italian dealer mirror",
                "url": "https://www.bavariayachts.it/index_htm_files/Brochure%20C45%20sito.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 11 / C45 technical data, following printed page 24",
                "evidence": "The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional.",
                "note": "Dataset build years: 2019, 2023, 2024. Cossutti C45 brochure's standard configuration; brochure edition is not a guarantee for every dataset build. The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional."
              },
              "sources": [
                {
                  "id": "bavaria-research-c45-brochure",
                  "title": "Bavaria C45 manufacturer C-Line brochure, Italian dealer mirror",
                  "url": "https://www.bavariayachts.it/index_htm_files/Brochure%20C45%20sito.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 11 / C45 technical data, following printed page 24",
                  "evidence": "The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional.",
                  "note": "Dataset build years: 2019, 2023, 2024. Cossutti C45 brochure's standard configuration; brochure edition is not a guarantee for every dataset build. The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-8097042-yanmar-4jh80-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2019, 2023, 2024. Same C45 brochure's explicitly optional engine; not a conclusion from 80 hp alone.",
              "source": {
                "id": "bavaria-research-c45-brochure",
                "title": "Bavaria C45 manufacturer C-Line brochure, Italian dealer mirror",
                "url": "https://www.bavariayachts.it/index_htm_files/Brochure%20C45%20sito.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 11 / C45 technical data, following printed page 24",
                "evidence": "The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional.",
                "note": "Dataset build years: 2019, 2023, 2024. Same C45 brochure's explicitly optional engine; not a conclusion from 80 hp alone. The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional."
              },
              "sources": [
                {
                  "id": "bavaria-research-c45-brochure",
                  "title": "Bavaria C45 manufacturer C-Line brochure, Italian dealer mirror",
                  "url": "https://www.bavariayachts.it/index_htm_files/Brochure%20C45%20sito.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 11 / C45 technical data, following printed page 24",
                  "evidence": "The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional.",
                  "note": "Dataset build years: 2019, 2023, 2024. Same C45 brochure's explicitly optional engine; not a conclusion from 80 hp alone. The C45 table explicitly names Yanmar 4JH57 standard and Yanmar 4JH80 optional."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C45\" engine Yanmar 4JH57 4JH80 specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-8097042-yanmar-4jh57-1"
        },
        {
          "name": "Bavaria C45 Holiday",
          "boatType": "sailing-yacht",
          "yachtModelId": 6021431,
          "sourceModelIds": [
            6021431,
            13039196
          ],
          "sourceModelNames": [
            "Bavaria C45 Holiday",
            "Bavaria C45 Holiday - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-6021431-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2019, 2024. Only Columbus Yachting's explicitly labelled 2019 Holiday boat. The 2024 dataset builds are not individually verified.",
              "source": {
                "id": "bavaria-research-c45-holiday",
                "title": "Columbus Yachting original listing: 2019 Bavaria C45 Holiday",
                "url": "https://ca.boats.com/sailing-boats/2019-bavaria-c45-holiday-10101499/",
                "kind": "documented-vessel-example",
                "locator": "Boat Details; Propulsion; Presented For Sale By",
                "evidence": "Columbus Yachting's own listing identifies the 2019 Holiday vessel with one Yanmar 4JH57.",
                "note": "Dataset build years: 2019, 2024. Only Columbus Yachting's explicitly labelled 2019 Holiday boat. The 2024 dataset builds are not individually verified. Columbus Yachting's own listing identifies the 2019 Holiday vessel with one Yanmar 4JH57."
              },
              "sources": [
                {
                  "id": "bavaria-research-c45-holiday",
                  "title": "Columbus Yachting original listing: 2019 Bavaria C45 Holiday",
                  "url": "https://ca.boats.com/sailing-boats/2019-bavaria-c45-holiday-10101499/",
                  "kind": "documented-vessel-example",
                  "locator": "Boat Details; Propulsion; Presented For Sale By",
                  "evidence": "Columbus Yachting's own listing identifies the 2019 Holiday vessel with one Yanmar 4JH57.",
                  "note": "Dataset build years: 2019, 2024. Only Columbus Yachting's explicitly labelled 2019 Holiday boat. The 2024 dataset builds are not individually verified. Columbus Yachting's own listing identifies the 2019 Holiday vessel with one Yanmar 4JH57."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C45 Holiday\" \"4JH57\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-6021431-yanmar-4jh57-1"
        },
        {
          "name": "Bavaria C45 Style",
          "boatType": "sailing-yacht",
          "yachtModelId": 6031800,
          "sourceModelIds": [
            6031800,
            10491385
          ],
          "sourceModelNames": [
            "Bavaria C45 Style",
            "Bavaria C45 Style - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-6031800-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2019, 2022, 2023. Only the charter specification's explicitly labelled 2020 C45 STYLE. Also outside listed build years; retained as a documented trim-specific alternative.",
              "source": {
                "id": "bavaria-research-c45-style57",
                "title": "Dalmatia Yachting: 2020 Bavaria C45 Style specification",
                "url": "https://www.booking-manager.com/wbm2/bmdoc/4582760557600575_Description_Bavaria_C45_STYLE.pdf",
                "kind": "documented-vessel-example",
                "locator": "Title and equipment list / Yanmar engine",
                "evidence": "The charter vessel specification explicitly labels C45 STYLE, year 2020, and Yanmar 4JH57.",
                "note": "Dataset build years: 2019, 2022, 2023. Only the charter specification's explicitly labelled 2020 C45 STYLE. Also outside listed build years; retained as a documented trim-specific alternative. The charter vessel specification explicitly labels C45 STYLE, year 2020, and Yanmar 4JH57."
              },
              "sources": [
                {
                  "id": "bavaria-research-c45-style57",
                  "title": "Dalmatia Yachting: 2020 Bavaria C45 Style specification",
                  "url": "https://www.booking-manager.com/wbm2/bmdoc/4582760557600575_Description_Bavaria_C45_STYLE.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Title and equipment list / Yanmar engine",
                  "evidence": "The charter vessel specification explicitly labels C45 STYLE, year 2020, and Yanmar 4JH57.",
                  "note": "Dataset build years: 2019, 2022, 2023. Only the charter specification's explicitly labelled 2020 C45 STYLE. Also outside listed build years; retained as a documented trim-specific alternative. The charter vessel specification explicitly labels C45 STYLE, year 2020, and Yanmar 4JH57."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-6031800-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2019, 2022, 2023. Only Yacht Broker House's 2019 Style boat; 2022/2023 builds not individually verified. Engine code repeated explicitly; inconsistent power figure omitted.",
              "source": {
                "id": "bavaria-research-c45-style",
                "title": "Yacht Broker House: Bavaria C45 Style, 2019",
                "url": "https://www.ybh.gr/yachts/bavaria-c45-style",
                "kind": "documented-vessel-example",
                "locator": "Main Info / Built, Model, Engine Type; Specifications / Engine",
                "evidence": "The broker's own 2019 C45 Style page repeatedly names Yanmar 4JH80. Its separate 56 hp figure is inconsistent and is not used as a model identifier or rating.",
                "note": "Dataset build years: 2019, 2022, 2023. Only Yacht Broker House's 2019 Style boat; 2022/2023 builds not individually verified. Engine code repeated explicitly; inconsistent power figure omitted. The broker's own 2019 C45 Style page repeatedly names Yanmar 4JH80. Its separate 56 hp figure is inconsistent and is not used as a model identifier or rating."
              },
              "sources": [
                {
                  "id": "bavaria-research-c45-style",
                  "title": "Yacht Broker House: Bavaria C45 Style, 2019",
                  "url": "https://www.ybh.gr/yachts/bavaria-c45-style",
                  "kind": "documented-vessel-example",
                  "locator": "Main Info / Built, Model, Engine Type; Specifications / Engine",
                  "evidence": "The broker's own 2019 C45 Style page repeatedly names Yanmar 4JH80. Its separate 56 hp figure is inconsistent and is not used as a model identifier or rating.",
                  "note": "Dataset build years: 2019, 2022, 2023. Only Yacht Broker House's 2019 Style boat; 2022/2023 builds not individually verified. Engine code repeated explicitly; inconsistent power figure omitted. The broker's own 2019 C45 Style page repeatedly names Yanmar 4JH80. Its separate 56 hp figure is inconsistent and is not used as a model identifier or rating."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C45 Style\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-6031800-yanmar-4jh57-1"
        },
        {
          "name": "Bavaria C46",
          "boatType": "sailing-yacht",
          "yachtModelId": 34594232,
          "sourceModelIds": [
            34594232,
            37629649,
            39021092
          ],
          "sourceModelNames": [
            "Bavaria C46 - 3 cab.",
            "Bavaria C46 - 4 cab.",
            "Bavaria C46 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-34594232-yanmar-4jh57-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Standard-power reference: builder's 2024 price list establishes 57 hp; Sydney Marine Brokerage's 2026 offered C46 supplies the exact 4JH57 code. This is not verification of every 2024-2026 charter vessel or a measured fuel test.",
              "source": {
                "id": "bavaria-fixed-c46-dealer-57",
                "title": "Sydney Marine Brokerage: Bavaria C46 new dealer reference NSB32",
                "url": "https://www.sydneymarinebrokerage.com/listing/bavaria-c46-1/",
                "kind": "dealer-catalogue-specification",
                "locator": "Boat Listing Details and Engine 1 tables",
                "evidence": "The dealer's 2026 offered C46 configuration names one Yanmar 4JH57, 57 hp, with saildrive. It is a catalogue reference, not a tested installation. Original HTML was directly fetched and read.",
                "note": "Standard-power reference: builder's 2024 price list establishes 57 hp; Sydney Marine Brokerage's 2026 offered C46 supplies the exact 4JH57 code. This is not verification of every 2024-2026 charter vessel or a measured fuel test. The dealer's 2026 offered C46 configuration names one Yanmar 4JH57, 57 hp, with saildrive. It is a catalogue reference, not a tested installation. Original HTML was directly fetched and read."
              },
              "sources": [
                {
                  "id": "bavaria-fixed-c46-dealer-57",
                  "title": "Sydney Marine Brokerage: Bavaria C46 new dealer reference NSB32",
                  "url": "https://www.sydneymarinebrokerage.com/listing/bavaria-c46-1/",
                  "kind": "dealer-catalogue-specification",
                  "locator": "Boat Listing Details and Engine 1 tables",
                  "evidence": "The dealer's 2026 offered C46 configuration names one Yanmar 4JH57, 57 hp, with saildrive. It is a catalogue reference, not a tested installation. Original HTML was directly fetched and read.",
                  "note": "Standard-power reference: builder's 2024 price list establishes 57 hp; Sydney Marine Brokerage's 2026 offered C46 supplies the exact 4JH57 code. This is not verification of every 2024-2026 charter vessel or a measured fuel test. The dealer's 2026 offered C46 configuration names one Yanmar 4JH57, 57 hp, with saildrive. It is a catalogue reference, not a tested installation. Original HTML was directly fetched and read."
                },
                {
                  "id": "bavaria-fixed-c46-builder-standard",
                  "title": "BAVARIA C46 builder price list 02-2024: standard propulsion",
                  "url": "https://www.bavaria-yachts.ru/02-2024/Pricelist_C46_02-2024_231212_EN_fin.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 6, PROPULSION & STEERING SYSTEM",
                  "evidence": "Builder lists 57 hp saildrive diesel as standard, with 80 hp optional. Exact engine code is supplied by the separate dealer reference, not this builder table.",
                  "note": "Standard-power reference: builder's 2024 price list establishes 57 hp; Sydney Marine Brokerage's 2026 offered C46 supplies the exact 4JH57 code. This is not verification of every 2024-2026 charter vessel or a measured fuel test. Builder lists 57 hp saildrive diesel as standard, with 80 hp optional. Exact engine code is supplied by the separate dealer reference, not this builder table."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-34594232-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2024, 2025, 2026. Only ADS Marine's 2024 C46. Not the differently designed Cruiser 46; 2025/2026 builds not individually verified.",
              "source": {
                "id": "bavaria-research-c46-2024",
                "title": "ADS Marine: 2024 Bavaria C46 vessel specification",
                "url": "https://ads-marine.com/en/used-boats/bavaria-c46?f=print_page&type=pdf",
                "kind": "documented-vessel-example",
                "locator": "Vessel identity; PROPULSION",
                "evidence": "The original broker's 2024 C46 sheet lists one Yanmar 4JH80.",
                "note": "Dataset build years: 2024, 2025, 2026. Only ADS Marine's 2024 C46. Not the differently designed Cruiser 46; 2025/2026 builds not individually verified. The original broker's 2024 C46 sheet lists one Yanmar 4JH80."
              },
              "sources": [
                {
                  "id": "bavaria-research-c46-2024",
                  "title": "ADS Marine: 2024 Bavaria C46 vessel specification",
                  "url": "https://ads-marine.com/en/used-boats/bavaria-c46?f=print_page&type=pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel identity; PROPULSION",
                  "evidence": "The original broker's 2024 C46 sheet lists one Yanmar 4JH80.",
                  "note": "Dataset build years: 2024, 2025, 2026. Only ADS Marine's 2024 C46. Not the differently designed Cruiser 46; 2025/2026 builds not individually verified. The original broker's 2024 C46 sheet lists one Yanmar 4JH80."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C46\" \"4JH\" engine",
              "Bavaria C46 Yanmar 4JH57 fixed three blade Sydney Marine Brokerage NSB32"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-34594232-yanmar-4jh57-1"
        },
        {
          "name": "Bavaria C50",
          "boatType": "sailing-yacht",
          "yachtModelId": 10346816,
          "sourceModelIds": [
            10346816,
            59737166
          ],
          "sourceModelNames": [
            "Bavaria C50 - 5 + 1 cab.",
            "Bavaria C50 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10346816-yanmar-4jh80-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2024. Dealer's C50 page explicitly offers Holiday and Style with this engine; undated specification, not proof for every 2024 vessel.",
              "source": {
                "id": "bavaria-research-c50-dealer",
                "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
                "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/",
                "kind": "authorized-dealer-specification",
                "locator": "C50 HOLIDAY and C50 STYLE variants; Technikai adatok",
                "evidence": "The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed.",
                "note": "Dataset build years: 2024. Dealer's C50 page explicitly offers Holiday and Style with this engine; undated specification, not proof for every 2024 vessel. The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed."
              },
              "sources": [
                {
                  "id": "bavaria-research-c50-dealer",
                  "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
                  "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/",
                  "kind": "authorized-dealer-specification",
                  "locator": "C50 HOLIDAY and C50 STYLE variants; Technikai adatok",
                  "evidence": "The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed.",
                  "note": "Dataset build years: 2024. Dealer's C50 page explicitly offers Holiday and Style with this engine; undated specification, not proof for every 2024 vessel. The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C50\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10346816-yanmar-4jh80-1"
        },
        {
          "name": "Bavaria C50 Holiday",
          "boatType": "sailing-yacht",
          "yachtModelId": 39145074,
          "sourceModelIds": [
            39145074
          ],
          "sourceModelNames": [
            "Bavaria C50 Holiday - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-39145074-yanmar-4jh80-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2022, 2024. Holiday is explicitly named on the dealer's C50 specification page. No automatic proof for each 2022/2024 hull.",
              "source": {
                "id": "bavaria-research-c50-dealer",
                "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
                "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/",
                "kind": "authorized-dealer-specification",
                "locator": "C50 HOLIDAY and C50 STYLE variants; Technikai adatok",
                "evidence": "The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed.",
                "note": "Dataset build years: 2022, 2024. Holiday is explicitly named on the dealer's C50 specification page. No automatic proof for each 2022/2024 hull. The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed."
              },
              "sources": [
                {
                  "id": "bavaria-research-c50-dealer",
                  "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
                  "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/",
                  "kind": "authorized-dealer-specification",
                  "locator": "C50 HOLIDAY and C50 STYLE variants; Technikai adatok",
                  "evidence": "The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed.",
                  "note": "Dataset build years: 2022, 2024. Holiday is explicitly named on the dealer's C50 specification page. No automatic proof for each 2022/2024 hull. The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C50 Holiday\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-39145074-yanmar-4jh80-1"
        },
        {
          "name": "Bavaria C50 Style",
          "boatType": "sailing-yacht",
          "yachtModelId": 8855152,
          "sourceModelIds": [
            8855152,
            10291916,
            12414491,
            31377746
          ],
          "sourceModelNames": [
            "Bavaria C50 Style - 3 + 1 cab.",
            "Bavaria C50 Style - 3 cab.",
            "Bavaria C50 Style - 4 + 1 cab.",
            "Bavaria C50 Style - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-8855152-yanmar-4jh80-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2023, 2024, 2025. Style is explicitly named on the dealer's C50 specification page. No automatic proof for each 2023-2025 hull.",
              "source": {
                "id": "bavaria-research-c50-dealer",
                "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
                "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/",
                "kind": "authorized-dealer-specification",
                "locator": "C50 HOLIDAY and C50 STYLE variants; Technikai adatok",
                "evidence": "The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed.",
                "note": "Dataset build years: 2023, 2024, 2025. Style is explicitly named on the dealer's C50 specification page. No automatic proof for each 2023-2025 hull. The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed."
              },
              "sources": [
                {
                  "id": "bavaria-research-c50-dealer",
                  "title": "Bavaria Yachts Hungary: C50, Holiday and Style",
                  "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c50/",
                  "kind": "authorized-dealer-specification",
                  "locator": "C50 HOLIDAY and C50 STYLE variants; Technikai adatok",
                  "evidence": "The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed.",
                  "note": "Dataset build years: 2023, 2024, 2025. Style is explicitly named on the dealer's C50 specification page. No automatic proof for each 2023-2025 hull. The dealer explicitly offers C50 Holiday and C50 Style on this same page and specifies Yanmar 4JH80. No date-specific universal fit is claimed."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C50 Style\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-8855152-yanmar-4jh80-1"
        },
        {
          "name": "Bavaria C57",
          "boatType": "sailing-yacht",
          "yachtModelId": 1505965,
          "sourceModelIds": [
            1505965,
            11249312
          ],
          "sourceModelNames": [
            "Bavaria C57 - 3 + 1 cab.",
            "Bavaria C57 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1505965-yanmar-4jh80-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2017, 2024. C57 configuration in the 2020 manufacturer brochure. Search-indexed page 44 only; direct fetch failed. Not a claim for every 2017/2024 boat.",
              "source": {
                "id": "bavaria-research-c57-brochure",
                "title": "Bavaria C-Line manufacturer brochure, 2020 dealer-hosted original",
                "url": "https://efelnautic.com/wp-content/uploads/plovila/bavaria/C-Line/brochure/Brochure_C-Line_german-english_200220.pdf",
                "kind": "manufacturer-specification",
                "locator": "Search-indexed printed page 44 / C57 FEATURES table",
                "evidence": "The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed.",
                "note": "Dataset build years: 2017, 2024. C57 configuration in the 2020 manufacturer brochure. Search-indexed page 44 only; direct fetch failed. Not a claim for every 2017/2024 boat. The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed."
              },
              "sources": [
                {
                  "id": "bavaria-research-c57-brochure",
                  "title": "Bavaria C-Line manufacturer brochure, 2020 dealer-hosted original",
                  "url": "https://efelnautic.com/wp-content/uploads/plovila/bavaria/C-Line/brochure/Brochure_C-Line_german-english_200220.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Search-indexed printed page 44 / C57 FEATURES table",
                  "evidence": "The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed.",
                  "note": "Dataset build years: 2017, 2024. C57 configuration in the 2020 manufacturer brochure. Search-indexed page 44 only; direct fetch failed. Not a claim for every 2017/2024 boat. The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1505965-yanmar-4jh110-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2017, 2024. Explicit optional engine in that C57 brochure. Later dealer specifications differ; do not treat this standard/option distinction as timeless.",
              "source": {
                "id": "bavaria-research-c57-brochure",
                "title": "Bavaria C-Line manufacturer brochure, 2020 dealer-hosted original",
                "url": "https://efelnautic.com/wp-content/uploads/plovila/bavaria/C-Line/brochure/Brochure_C-Line_german-english_200220.pdf",
                "kind": "manufacturer-specification",
                "locator": "Search-indexed printed page 44 / C57 FEATURES table",
                "evidence": "The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed.",
                "note": "Dataset build years: 2017, 2024. Explicit optional engine in that C57 brochure. Later dealer specifications differ; do not treat this standard/option distinction as timeless. The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed."
              },
              "sources": [
                {
                  "id": "bavaria-research-c57-brochure",
                  "title": "Bavaria C-Line manufacturer brochure, 2020 dealer-hosted original",
                  "url": "https://efelnautic.com/wp-content/uploads/plovila/bavaria/C-Line/brochure/Brochure_C-Line_german-english_200220.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Search-indexed printed page 44 / C57 FEATURES table",
                  "evidence": "The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed.",
                  "note": "Dataset build years: 2017, 2024. Explicit optional engine in that C57 brochure. Later dealer specifications differ; do not treat this standard/option distinction as timeless. The C57 table explicitly names Yanmar 4JH80 standard and Yanmar 4JH110 optional. Search-indexed text was available; direct PDF fetch failed."
                },
                {
                  "id": "bavaria-research-c57-dealer",
                  "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
                  "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/",
                  "kind": "authorized-dealer-specification",
                  "locator": "C57 HOLIDAY and C57 STYLE variants; Technikai adatok",
                  "evidence": "The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110.",
                  "note": "Dataset build years: 2017, 2024. Undated current dealer C57 specification; both named trims explicitly covered. Dealer presentation does not establish factory-option status for 2017. The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C57\" engine Yanmar 4JH80 4JH110"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1505965-yanmar-4jh80-1"
        },
        {
          "name": "Bavaria C57 Holiday",
          "boatType": "sailing-yacht",
          "yachtModelId": 2205485,
          "sourceModelIds": [
            2205485
          ],
          "sourceModelNames": [
            "Bavaria C57 Holiday"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-2205485-yanmar-4jh110-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2018. Holiday is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2018 dataset boat.",
              "source": {
                "id": "bavaria-research-c57-dealer",
                "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
                "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/",
                "kind": "authorized-dealer-specification",
                "locator": "C57 HOLIDAY and C57 STYLE variants; Technikai adatok",
                "evidence": "The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110.",
                "note": "Dataset build years: 2018. Holiday is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2018 dataset boat. The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110."
              },
              "sources": [
                {
                  "id": "bavaria-research-c57-dealer",
                  "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
                  "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/",
                  "kind": "authorized-dealer-specification",
                  "locator": "C57 HOLIDAY and C57 STYLE variants; Technikai adatok",
                  "evidence": "The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110.",
                  "note": "Dataset build years: 2018. Holiday is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2018 dataset boat. The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C57 Holiday\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-2205485-yanmar-4jh110-1"
        },
        {
          "name": "Bavaria C57 Style",
          "boatType": "sailing-yacht",
          "yachtModelId": 37437575,
          "sourceModelIds": [
            37437575
          ],
          "sourceModelNames": [
            "Bavaria C57 Style - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-37437575-yanmar-4jh110-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2024. Style is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2024 dataset boat.",
              "source": {
                "id": "bavaria-research-c57-dealer",
                "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
                "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/",
                "kind": "authorized-dealer-specification",
                "locator": "C57 HOLIDAY and C57 STYLE variants; Technikai adatok",
                "evidence": "The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110.",
                "note": "Dataset build years: 2024. Style is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2024 dataset boat. The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110."
              },
              "sources": [
                {
                  "id": "bavaria-research-c57-dealer",
                  "title": "Bavaria Yachts Hungary: C57, Holiday and Style",
                  "url": "https://bavaria.hu/bavaria-yacht/hajok/bavaria-vitorlas-hajok/bavaria-c57/ismerteto/",
                  "kind": "authorized-dealer-specification",
                  "locator": "C57 HOLIDAY and C57 STYLE variants; Technikai adatok",
                  "evidence": "The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110.",
                  "note": "Dataset build years: 2024. Style is explicitly named on the dealer's C57 page. Undated publication does not verify the individual 2024 dataset boat. The dealer page explicitly names both Holiday and Style and specifies Yanmar 4JH110."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria C57 Style\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-37437575-yanmar-4jh110-1"
        },
        {
          "name": "Bavaria Cruiser 32",
          "boatType": "sailing-yacht",
          "yachtModelId": 100261,
          "sourceModelIds": [
            100261
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 32"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100261-volvopenta-d120-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2012, 2014. February 2012 Farr Cruiser 32 manufacturer specification. Not the older Bavaria 32; 2014 hulls not individually verified.",
              "source": {
                "id": "bavaria-research-cr32-2012",
                "title": "Bavaria Cruiser 32 manufacturer standard specification, February 2012",
                "url": "https://www.staynautica.com/wp-content/uploads/2012/09/Bavaria-32-Cruiser-Equipo-standar-2012.pdf",
                "kind": "manufacturer-specification",
                "locator": "Technical Data / Motorizacion; STAND 02/2012",
                "evidence": "The Farr Cruiser 32 specification names Volvo D1-20.",
                "note": "Dataset build years: 2012, 2014. February 2012 Farr Cruiser 32 manufacturer specification. Not the older Bavaria 32; 2014 hulls not individually verified. The Farr Cruiser 32 specification names Volvo D1-20."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr32-2012",
                  "title": "Bavaria Cruiser 32 manufacturer standard specification, February 2012",
                  "url": "https://www.staynautica.com/wp-content/uploads/2012/09/Bavaria-32-Cruiser-Equipo-standar-2012.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Technical Data / Motorizacion; STAND 02/2012",
                  "evidence": "The Farr Cruiser 32 specification names Volvo D1-20.",
                  "note": "Dataset build years: 2012, 2014. February 2012 Farr Cruiser 32 manufacturer specification. Not the older Bavaria 32; 2014 hulls not individually verified. The Farr Cruiser 32 specification names Volvo D1-20."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 32\" \"2012\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100261-volvopenta-d120-1"
        },
        {
          "name": "Bavaria Cruiser 33",
          "boatType": "sailing-yacht",
          "yachtModelId": 473998,
          "sourceModelIds": [
            473998
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 33"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-473998-volvopenta-d120-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2013, 2014, 2015, 2016. Older Farr-series brochure, Cruiser 33 technical table. Not J&J 33 Cruiser.",
              "source": {
                "id": "bavaria-research-cr-line-early",
                "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                "note": "Dataset build years: 2013, 2014, 2015, 2016. Older Farr-series brochure, Cruiser 33 technical table. Not J&J 33 Cruiser. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr-line-early",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                  "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                  "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                  "note": "Dataset build years: 2013, 2014, 2015, 2016. Older Farr-series brochure, Cruiser 33 technical table. Not J&J 33 Cruiser. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 33\" \"2013\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-473998-volvopenta-d120-1"
        },
        {
          "name": "Bavaria Cruiser 34",
          "boatType": "sailing-yacht",
          "yachtModelId": 1301589,
          "sourceModelIds": [
            1301589,
            1321060
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 34",
            "Bavaria Cruiser 34 - 2 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "bavaria-cruiser-34-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d1_20",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 34 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "configuration": "published-standard",
              "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 34 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
                },
                {
                  "id": "bavaria-research-cr-line-later",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 34, 37 and 46",
                  "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sb-cruiserline-de-en.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 18 overview and page 16 Cruiser 46 data",
                  "evidence": "Separate model columns identify Cruiser 34 Volvo D1-20; Cruiser 37 D1-30; Cruiser 46 D2-50.",
                  "note": "Dataset build years: 2017, 2018, 2019, 2020, 2023, 2024, 2025. Later Farr Cruiser 34 brochure. Not the 2008-2009 J&J Bavaria 34 Cruiser. Separate model columns identify Cruiser 34 Volvo D1-20; Cruiser 37 D1-30; Cruiser 46 D2-50."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "bavaria-cruiser-34-farr-upgrade",
              "label": "Published engine option",
              "engineReferenceId": "volvo_d1_30",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 34 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "configuration": "factory-option",
              "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 34 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 9
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 34\" \"D1-20\" specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "bavaria-cruiser-34-farr-standard"
        },
        {
          "name": "Bavaria Cruiser 34 Style",
          "boatType": "sailing-yacht",
          "yachtModelId": 8497882,
          "sourceModelIds": [
            8497882,
            10361842
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 34 Style",
            "Bavaria Cruiser 34 Style - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "bavaria-cruiser-34-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d1_20",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 34 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "configuration": "published-standard",
              "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 34 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
                },
                {
                  "id": "bavaria-research-cr34-style",
                  "title": "Bavaria Yachts Hungary: Cruiser 34 Style reference specification",
                  "url": "https://bavaria.hu/bavaria-yacht/referenciak/bavaria-cruiser-34-style/",
                  "kind": "authorized-dealer-specification",
                  "locator": "Page title; Technikai adatok / Motor-tipus",
                  "evidence": "The page specifically labelled Cruiser 34 Style names Volvo Penta D1-20.",
                  "note": "Dataset build years: 2019, 2020, 2023, 2024. Dealer page explicitly labels Cruiser 34 Style. No date-specific promise for all 2019/2020/2023/2024 boats. The page specifically labelled Cruiser 34 Style names Volvo Penta D1-20."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "bavaria-cruiser-34-farr-upgrade",
              "label": "Published engine option",
              "engineReferenceId": "volvo_d1_30",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 34 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "configuration": "factory-option",
              "applicability": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 34 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/34%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 34: D1-20 standard, D1-30 option. Not the older Bavaria 34 Cruiser generation."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 34 Style\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "bavaria-cruiser-34-farr-standard"
        },
        {
          "name": "Bavaria Cruiser 36",
          "boatType": "sailing-yacht",
          "yachtModelId": 102053,
          "sourceModelIds": [
            102053
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 36"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-102053-volvopenta-d120-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2011, 2012, 2013. Separate 2011 Farr owner's-layout example, Beekhuis reference 231009. Neither example establishes every 2012/2013 installation.",
              "source": {
                "id": "bavaria-research-cr36-2011-20",
                "title": "Beekhuis Yachtbrokers: 2011 Cruiser 36, reference 231009",
                "url": "https://www.beekhuisyachtbrokers.com/en/sold-yachts/bavaria-cruiser-36-2-cabin/",
                "kind": "documented-vessel-example",
                "locator": "Year built; Engine specification",
                "evidence": "The Farr-designed 2011 owner's-layout boat explicitly names Volvo Penta D1-20.",
                "note": "Dataset build years: 2011, 2012, 2013. Separate 2011 Farr owner's-layout example, Beekhuis reference 231009. Neither example establishes every 2012/2013 installation. The Farr-designed 2011 owner's-layout boat explicitly names Volvo Penta D1-20."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr36-2011-20",
                  "title": "Beekhuis Yachtbrokers: 2011 Cruiser 36, reference 231009",
                  "url": "https://www.beekhuisyachtbrokers.com/en/sold-yachts/bavaria-cruiser-36-2-cabin/",
                  "kind": "documented-vessel-example",
                  "locator": "Year built; Engine specification",
                  "evidence": "The Farr-designed 2011 owner's-layout boat explicitly names Volvo Penta D1-20.",
                  "note": "Dataset build years: 2011, 2012, 2013. Separate 2011 Farr owner's-layout example, Beekhuis reference 231009. Neither example establishes every 2012/2013 installation. The Farr-designed 2011 owner's-layout boat explicitly names Volvo Penta D1-20."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-102053-volvopenta-d130f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30F",
              "engineDisplayName": "Volvo Penta D1-30F",
              "engineReferenceId": "volvo_d1_30f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2011, 2012, 2013. Only the 2011 Farr/BMW vessel, De Valk reference 251277.",
              "source": {
                "id": "bavaria-research-cr36-2011",
                "title": "De Valk: Farr Bavaria 36 Cruiser, 2011, reference 251277",
                "url": "https://www.devalk.nl/en/yachtbrokerage/251277/BAVARIA-36-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Year built; Broker comments; Machinery",
                "evidence": "The Farr/BMW 2011 boat has one Volvo Penta D1-30F.",
                "note": "Dataset build years: 2011, 2012, 2013. Only the 2011 Farr/BMW vessel, De Valk reference 251277. The Farr/BMW 2011 boat has one Volvo Penta D1-30F."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr36-2011",
                  "title": "De Valk: Farr Bavaria 36 Cruiser, 2011, reference 251277",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/251277/BAVARIA-36-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Year built; Broker comments; Machinery",
                  "evidence": "The Farr/BMW 2011 boat has one Volvo Penta D1-30F.",
                  "note": "Dataset build years: 2011, 2012, 2013. Only the 2011 Farr/BMW vessel, De Valk reference 251277. The Farr/BMW 2011 boat has one Volvo Penta D1-30F."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://www.cnml.eu/wp-content/uploads/2018/03/manuel-de-lutilisateur-D1-20F.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide-Utilisateur_Moteurs-Volvo-Penta-D1-et-D2_Manuel-7748803_version-2020_DB-MOTEURS.pdf",
                  "https://essexcountynj.org/wp-content/uploads/2020/08/Leisure-Diesel-Basic-Packages-MY-2021.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 36\" \"2011\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-102053-volvopenta-d120-1"
        },
        {
          "name": "Bavaria Cruiser 37",
          "boatType": "sailing-yacht",
          "yachtModelId": 528769,
          "sourceModelIds": [
            528769
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 37 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-528769-volvopenta-d120-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. Earlier Farr Cruiser 37 brochure configuration; do not replace with the engine printed in a later edition.",
              "source": {
                "id": "bavaria-research-cr-line-early",
                "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. Earlier Farr Cruiser 37 brochure configuration; do not replace with the engine printed in a later edition. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr-line-early",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                  "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                  "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. Earlier Farr Cruiser 37 brochure configuration; do not replace with the engine printed in a later edition. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "bavaria-cruiser-37-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d1_30",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 37 technical sheet, 2025",
                "url": "https://www.bavariayachts.it/download/37-cruiser-scheda-tenica-2025.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Published D1-30 standard configuration. Earlier editions and individual boats may differ."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "configuration": "published-standard",
              "applicability": "Published D1-30 standard configuration. Earlier editions and individual boats may differ.",
              "sources": [
                {
                  "id": "bavaria-research-cr37-2025",
                  "title": "Bavaria Cruiser 37 technical sheet, 2025",
                  "url": "https://www.bavariayachts.it/download/37-cruiser-scheda-tenica-2025.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 1 / Motore standard",
                  "evidence": "The 2025 Farr Cruiser 37 sheet explicitly specifies Volvo D1-30 as standard.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. 2025 Farr Cruiser 37 technical sheet explicitly says standard; does not retrospectively specify 2014-2024 boats. The 2025 Farr Cruiser 37 sheet explicitly specifies Volvo D1-30 as standard."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 5
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 37\" engine D1-30 specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-528769-volvopenta-d120-1"
        },
        {
          "name": "Bavaria Cruiser 37 Style",
          "boatType": "sailing-yacht",
          "yachtModelId": 12894471,
          "sourceModelIds": [
            12894471
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 37 Style"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "bavaria-cruiser-37-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d1_30",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 37 technical sheet, 2025",
                "url": "https://www.bavariayachts.it/download/37-cruiser-scheda-tenica-2025.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Published D1-30 standard configuration. Earlier editions and individual boats may differ."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "configuration": "published-standard",
              "applicability": "Published D1-30 standard configuration. Earlier editions and individual boats may differ.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 37 technical sheet, 2025",
                  "url": "https://www.bavariayachts.it/download/37-cruiser-scheda-tenica-2025.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Published D1-30 standard configuration. Earlier editions and individual boats may differ."
                },
                {
                  "id": "bavaria-research-cr37-style",
                  "title": "Diamond Yachts: 2023 Bavaria Cruiser 37 Style",
                  "url": "https://www.diamond-yachts.de/gebrauchtboote/details/bavaria-cruiser-37-style.html",
                  "kind": "documented-vessel-example",
                  "locator": "Rahmendaten; Technische Ausrustung",
                  "evidence": "The original broker's 2023 Style vessel has Volvo Penta D1-30.",
                  "note": "Dataset build years: 2023. Only the original broker's 2023 Style boat, matching the dataset's build year. The original broker's 2023 Style vessel has Volvo Penta D1-30."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 37 Style\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "bavaria-cruiser-37-farr-standard"
        },
        {
          "name": "Bavaria Cruiser 40",
          "boatType": "sailing-yacht",
          "yachtModelId": 102806,
          "sourceModelIds": [
            102806
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 40"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-102806-volvopenta-d130-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2011, 2013. 2011 Farr Cruiser 40 owners manual; listed engine, no standard/option assignment inferred.",
              "source": {
                "id": "bavaria-research-cr40-manual",
                "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
                "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf",
                "kind": "manufacturer-manual",
                "locator": "Section 1.1.3 Motorisation",
                "evidence": "The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option.",
                "note": "Dataset build years: 2011, 2013. 2011 Farr Cruiser 40 owners manual; listed engine, no standard/option assignment inferred. The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr40-manual",
                  "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
                  "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Section 1.1.3 Motorisation",
                  "evidence": "The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option.",
                  "note": "Dataset build years: 2011, 2013. 2011 Farr Cruiser 40 owners manual; listed engine, no standard/option assignment inferred. The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-102806-volvopenta-d240-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2011, 2013. Same model-specific manual's explicit alternative; not transferred to the 2009 J&J 40 Cruiser.",
              "source": {
                "id": "bavaria-research-cr40-manual",
                "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
                "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf",
                "kind": "manufacturer-manual",
                "locator": "Section 1.1.3 Motorisation",
                "evidence": "The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option.",
                "note": "Dataset build years: 2011, 2013. Same model-specific manual's explicit alternative; not transferred to the 2009 J&J 40 Cruiser. The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr40-manual",
                  "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
                  "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Section 1.1.3 Motorisation",
                  "evidence": "The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option.",
                  "note": "Dataset build years: 2011, 2013. Same model-specific manual's explicit alternative; not transferred to the 2009 J&J 40 Cruiser. The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-102806-volvopenta-d255-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2011, 2013. Same manual's explicit alternative. Individual 2011/2013 engine identity must still be checked.",
              "source": {
                "id": "bavaria-research-cr40-manual",
                "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
                "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf",
                "kind": "manufacturer-manual",
                "locator": "Section 1.1.3 Motorisation",
                "evidence": "The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option.",
                "note": "Dataset build years: 2011, 2013. Same manual's explicit alternative. Individual 2011/2013 engine identity must still be checked. The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr40-manual",
                  "title": "Bavaria Cruiser 40 owners manual, 2011, original mirrored by Uchimata",
                  "url": "https://www.uchimata.fr/wp-content/uploads/2014/10/Bavaria-40-Cruiser-2011-Uchimata-Manuel-Propri%C3%A9taire-en.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Section 1.1.3 Motorisation",
                  "evidence": "The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option.",
                  "note": "Dataset build years: 2011, 2013. Same manual's explicit alternative. Individual 2011/2013 engine identity must still be checked. The Cruiser 40 manual explicitly lists Volvo D1-30, D2-40 and D2-55; the motorisation section does not label each standard versus option."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 40\" \"D1-30\" \"technical\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-102806-volvopenta-d130-1"
        },
        {
          "name": "Bavaria Cruiser 40 S",
          "boatType": "sailing-yacht",
          "yachtModelId": 105658,
          "sourceModelIds": [
            105658
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 40 S"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-105658-volvopenta-d130-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2012, 2013. February 2012 standard specification explicitly names Cruiser 40 S. Not inferred from Cruiser 40 or 41S.",
              "source": {
                "id": "bavaria-research-cr40s-2012",
                "title": "Bavaria Cruiser 40 S manufacturer standard specification, February 2012",
                "url": "https://www.staynautica.com/wp-content/uploads/2012/06/Bavaria-40-Cruiser-S-Equipo-standar-2012.pdf",
                "kind": "manufacturer-specification",
                "locator": "Technical Data / Motorizacion; STAND 02/2012",
                "evidence": "The expressly named Cruiser 40 S specification names Volvo D1-30.",
                "note": "Dataset build years: 2012, 2013. February 2012 standard specification explicitly names Cruiser 40 S. Not inferred from Cruiser 40 or 41S. The expressly named Cruiser 40 S specification names Volvo D1-30."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr40s-2012",
                  "title": "Bavaria Cruiser 40 S manufacturer standard specification, February 2012",
                  "url": "https://www.staynautica.com/wp-content/uploads/2012/06/Bavaria-40-Cruiser-S-Equipo-standar-2012.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Technical Data / Motorizacion; STAND 02/2012",
                  "evidence": "The expressly named Cruiser 40 S specification names Volvo D1-30.",
                  "note": "Dataset build years: 2012, 2013. February 2012 standard specification explicitly names Cruiser 40 S. Not inferred from Cruiser 40 or 41S. The expressly named Cruiser 40 S specification names Volvo D1-30."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 40 S\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-105658-volvopenta-d130-1"
        },
        {
          "name": "Bavaria Cruiser 41",
          "boatType": "sailing-yacht",
          "yachtModelId": 528768,
          "sourceModelIds": [
            528768
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 41 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-528768-volvopenta-d130-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022. Earlier Farr Cruiser 41 brochure configuration; not the 2003 Bavaria 41.",
              "source": {
                "id": "bavaria-research-cr-line-early",
                "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022. Earlier Farr Cruiser 41 brochure configuration; not the 2003 Bavaria 41. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr-line-early",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                  "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                  "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022. Earlier Farr Cruiser 41 brochure configuration; not the 2003 Bavaria 41. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "bavaria-cruiser-41-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d2_40",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser Line manufacturer brochure",
                "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sy-cruiserline-de-en.pdf",
                "kind": "manufacturer-brochure",
                "note": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "configuration": "published-standard",
              "applicability": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models.",
              "sources": [
                {
                  "title": "Bavaria Cruiser Line manufacturer brochure",
                  "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sy-cruiserline-de-en.pdf",
                  "kind": "manufacturer-brochure",
                  "note": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models."
                },
                {
                  "id": "bavaria-research-cr41-2018",
                  "title": "De Valk: Bavaria Cruiser 41, 2018, reference 813650",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/813650/BAVARIA-CRUISER-41.html",
                  "kind": "documented-vessel-example",
                  "locator": "Year built; Machinery",
                  "evidence": "The 2018 boat has one Volvo Penta D2-40 installed in 2018.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022. Only the original broker's 2018 boat; a separate documented alternative to the earlier brochure. The 2018 boat has one Volvo Penta D2-40 installed in 2018."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 5
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 41\" engine D2-40 specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-528768-volvopenta-d130-1"
        },
        {
          "name": "Bavaria Cruiser 41S",
          "boatType": "sailing-yacht",
          "yachtModelId": 554817,
          "sourceModelIds": [
            554817
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 41S"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-554817-volvopenta-d240-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2017. Dealer page expressly names the sport Cruiser 41 S; undated specification, not confirmation of each 2017 boat.",
              "source": {
                "id": "bavaria-research-cr41s",
                "title": "Busfield Marine Brokers: Bavaria Cruiser 41 S",
                "url": "https://www.busfieldmarine.co.nz/shop/Bavaria%2BSail/Bavaria%2BCruiser%2B41%2BS.html",
                "kind": "authorized-dealer-specification",
                "locator": "Cruiser 41 S description and Specifications / Engine",
                "evidence": "The Bavaria dealer's explicitly labelled 41 S model page names Volvo Penta D2-40.",
                "note": "Dataset build years: 2017. Dealer page expressly names the sport Cruiser 41 S; undated specification, not confirmation of each 2017 boat. The Bavaria dealer's explicitly labelled 41 S model page names Volvo Penta D2-40."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr41s",
                  "title": "Busfield Marine Brokers: Bavaria Cruiser 41 S",
                  "url": "https://www.busfieldmarine.co.nz/shop/Bavaria%2BSail/Bavaria%2BCruiser%2B41%2BS.html",
                  "kind": "authorized-dealer-specification",
                  "locator": "Cruiser 41 S description and Specifications / Engine",
                  "evidence": "The Bavaria dealer's explicitly labelled 41 S model page names Volvo Penta D2-40.",
                  "note": "Dataset build years: 2017. Dealer page expressly names the sport Cruiser 41 S; undated specification, not confirmation of each 2017 boat. The Bavaria dealer's explicitly labelled 41 S model page names Volvo Penta D2-40."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 7
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 41S\" \"D2-40\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-554817-volvopenta-d240-1"
        },
        {
          "name": "Bavaria Cruiser 45",
          "boatType": "sailing-yacht",
          "yachtModelId": 100212,
          "sourceModelIds": [
            100212,
            473984
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 45",
            "Bavaria Cruiser 45 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100212-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2010, 2012, 2013, 2018. Only Almissani's 2012 boat; 2010/2013/2018 builds not individually verified. Not C45.",
              "source": {
                "id": "bavaria-research-cr45-2012",
                "title": "Almissani original listing: 2012 Bavaria Cruiser 45",
                "url": "https://www.boatshop24.com/us/boat/2012-bavaria-cruiser-45-9728443/",
                "kind": "documented-vessel-example",
                "locator": "Year; Engine; seller Almissani",
                "evidence": "The original selling broker lists a 2012 Cruiser 45 with Volvo Penta D2-55.",
                "note": "Dataset build years: 2010, 2012, 2013, 2018. Only Almissani's 2012 boat; 2010/2013/2018 builds not individually verified. Not C45. The original selling broker lists a 2012 Cruiser 45 with Volvo Penta D2-55."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr45-2012",
                  "title": "Almissani original listing: 2012 Bavaria Cruiser 45",
                  "url": "https://www.boatshop24.com/us/boat/2012-bavaria-cruiser-45-9728443/",
                  "kind": "documented-vessel-example",
                  "locator": "Year; Engine; seller Almissani",
                  "evidence": "The original selling broker lists a 2012 Cruiser 45 with Volvo Penta D2-55.",
                  "note": "Dataset build years: 2010, 2012, 2013, 2018. Only Almissani's 2012 boat; 2010/2013/2018 builds not individually verified. Not C45. The original selling broker lists a 2012 Cruiser 45 with Volvo Penta D2-55."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2010",
              "label": "2010 build",
              "year": 2010,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 45\" \"2012\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100212-volvopenta-d255-1"
        },
        {
          "name": "Bavaria Cruiser 46",
          "boatType": "sailing-yacht",
          "yachtModelId": 529354,
          "sourceModelIds": [
            529354,
            835530,
            50270091
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 46 - 3 cab.",
            "Bavaria Cruiser 46 - 4 cab.",
            "Bavaria Cruiser 46 - 4 cab.*"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "bavaria-cruiser-46-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d2_50",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 46 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "configuration": "published-standard",
              "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 46 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
                },
                {
                  "id": "bavaria-research-cr-line-later",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 34, 37 and 46",
                  "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sb-cruiserline-de-en.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 18 overview and page 16 Cruiser 46 data",
                  "evidence": "Separate model columns identify Cruiser 34 Volvo D1-20; Cruiser 37 D1-30; Cruiser 46 D2-50.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023, 2024. Later manufacturer Cruiser 46 brochure configuration; differing edition is retained. Separate model columns identify Cruiser 34 Volvo D1-20; Cruiser 37 D1-30; Cruiser 46 D2-50."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 37.5
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-529354-volvopenta-d255-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023, 2024. Earlier Farr Cruiser 46 brochure; not J&J Bavaria 46 Cruiser.",
              "source": {
                "id": "bavaria-research-cr-line-early",
                "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023, 2024. Earlier Farr Cruiser 46 brochure; not J&J Bavaria 46 Cruiser. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr-line-early",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                  "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                  "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023, 2024. Earlier Farr Cruiser 46 brochure; not J&J Bavaria 46 Cruiser. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "bavaria-cruiser-46-farr-upgrade",
              "label": "Published engine option",
              "engineReferenceId": "volvo_d2_75",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 46 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "configuration": "factory-option",
              "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 46 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
                },
                {
                  "id": "bavaria-research-cr46-2015",
                  "title": "Clipper Marine: 2015 Bavaria Cruiser 46 Eastern Trilogy",
                  "url": "https://www.clippermarine.co.uk/boats-for-sale~boat-feed-detail~-bavaria-cruiser-46~58921",
                  "kind": "documented-vessel-example",
                  "locator": "Description; Other options; Propulsion",
                  "evidence": "The 2015 boat explicitly has a Volvo Penta D2-75 engine upgrade.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2020, 2021, 2022, 2023, 2024. Only Eastern Trilogy, the 2015 boat with an explicitly documented engine upgrade. The 2015 boat explicitly has a Volvo Penta D2-75 engine upgrade."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 46\" \"D2-75\" site:clippermarine.co.uk"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "bavaria-cruiser-46-farr-standard"
        },
        {
          "name": "Bavaria Cruiser 46 Style",
          "boatType": "sailing-yacht",
          "yachtModelId": 3970430,
          "sourceModelIds": [
            3970430
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 46 Style - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "bavaria-cruiser-46-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d2_50",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 46 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "configuration": "published-standard",
              "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 46 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 37.5
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "bavaria-cruiser-46-farr-upgrade",
              "label": "Published engine option",
              "engineReferenceId": "volvo_d2_75",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser 46 technical sheet",
                "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                "kind": "manufacturer-technical-sheet",
                "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "configuration": "factory-option",
              "applicability": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser.",
              "sources": [
                {
                  "title": "Bavaria Cruiser 46 technical sheet",
                  "url": "https://www.bavariayachts.it/index_htm_files/46%20Cruiser%20scheda%20tecnica.pdf",
                  "kind": "manufacturer-technical-sheet",
                  "note": "Farr-designed Cruiser 46: D2-50 standard and D2-75 option. Not the 2006-2007 Bavaria 46 Cruiser."
                },
                {
                  "id": "bavaria-research-cr46-style",
                  "title": "VELADOC original listing: Bavaria Cruiser 46 Style",
                  "url": "https://au.boats.com/sailing-boats/2017-bavaria-cruiser-46-style-10020572/",
                  "kind": "documented-vessel-example",
                  "locator": "Boat Details / Model and Year; Propulsion / Engine Model",
                  "evidence": "VELADOC's original Style listing explicitly specifies Volvo Penta D2-75. Listing year is 2017 while description says 2018; neither establishes the dataset's 2020 vessel.",
                  "note": "Dataset build years: 2020. Only VELADOC's explicitly named Style boat: listing year 2017, description 2018. This supports an observed Style installation but does not verify the dataset's 2020 boat. VELADOC's original Style listing explicitly specifies Volvo Penta D2-75. Listing year is 2017 while description says 2018; neither establishes the dataset's 2020 vessel."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 46 Style\" engine model Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "bavaria-cruiser-46-farr-standard"
        },
        {
          "name": "Bavaria Cruiser 50",
          "boatType": "sailing-yacht",
          "yachtModelId": 102807,
          "sourceModelIds": [
            102807
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 50"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-102807-volvopenta-d275-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2011, 2012, 2013. Farr Cruiser 50 technical table; not J&J 50 Cruiser. Individual 2011-2013 hulls still require verification.",
              "source": {
                "id": "bavaria-research-cr-line-early",
                "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                "note": "Dataset build years: 2011, 2012, 2013. Farr Cruiser 50 technical table; not J&J 50 Cruiser. Individual 2011-2013 hulls still require verification. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr-line-early",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                  "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                  "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                  "note": "Dataset build years: 2011, 2012, 2013. Farr Cruiser 50 technical table; not J&J 50 Cruiser. Individual 2011-2013 hulls still require verification. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 50\" \"2011\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-102807-volvopenta-d275-1"
        },
        {
          "name": "Bavaria Cruiser 51",
          "boatType": "sailing-yacht",
          "yachtModelId": 556469,
          "sourceModelIds": [
            556469
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 51"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "bavaria-cruiser-51-farr-standard",
              "label": "Published standard engine",
              "engineReferenceId": "volvo_d2_75",
              "engineCount": 1,
              "source": {
                "title": "Bavaria Cruiser Line manufacturer brochure",
                "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sy-cruiserline-de-en.pdf",
                "kind": "manufacturer-brochure",
                "note": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models."
              },
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "configuration": "published-standard",
              "applicability": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models.",
              "sources": [
                {
                  "title": "Bavaria Cruiser Line manufacturer brochure",
                  "url": "https://www.bavariayachts.com/fileadmin/media/global/service/downloads/brochures/sailingyachts/bavaria-service-downloads-brochures-sy-cruiserline-de-en.pdf",
                  "kind": "manufacturer-brochure",
                  "note": "Cruiser 41 D2-40; Cruiser 51 D2-75. Applies to these Cruiser generations, not similarly numbered older models."
                },
                {
                  "id": "bavaria-research-cr51",
                  "title": "Sail Yachting: Bavaria Cruiser 51 standard specification",
                  "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/_____bavaria_cruiser_51-1.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Varie / Motore",
                  "evidence": "The dealer-hosted Cruiser 51 specification explicitly names Volvo Penta D2-75.",
                  "note": "Dataset build years: 2014, 2015, 2016, 2017, 2018, 2020, 2021. Dealer's expressly named Cruiser 51 specification; not the older 2010 Bavaria 51 Cruiser. The dealer-hosted Cruiser 51 specification explicitly names Volvo Penta D2-75."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 51\" engine D2-75 specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "bavaria-cruiser-51-farr-standard"
        },
        {
          "name": "Bavaria Cruiser 55",
          "boatType": "sailing-yacht",
          "yachtModelId": 104552,
          "sourceModelIds": [
            104552
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 55 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-104552-volvopenta-d3110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-110",
              "engineDisplayName": "Volvo Penta D3-110",
              "engineReferenceId": "volvo_d3_110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2010. Only Fontnautic's 2010 Barcelona boat. This does not identify all five-cabin 2010 boats.",
              "source": {
                "id": "bavaria-research-cr55-2010",
                "title": "Fontnautic: 2010 Bavaria Cruiser 55 in Barcelona",
                "url": "https://fontnautic.com/bavaria-cruiser-55/",
                "kind": "documented-vessel-example",
                "locator": "Datos principales / Motores; La embarcacion",
                "evidence": "The broker's 2010 vessel has one Volvo Penta D3-110.",
                "note": "Dataset build years: 2010. Only Fontnautic's 2010 Barcelona boat. This does not identify all five-cabin 2010 boats. The broker's 2010 vessel has one Volvo Penta D3-110."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr55-2010",
                  "title": "Fontnautic: 2010 Bavaria Cruiser 55 in Barcelona",
                  "url": "https://fontnautic.com/bavaria-cruiser-55/",
                  "kind": "documented-vessel-example",
                  "locator": "Datos principales / Motores; La embarcacion",
                  "evidence": "The broker's 2010 vessel has one Volvo Penta D3-110.",
                  "note": "Dataset build years: 2010. Only Fontnautic's 2010 Barcelona boat. This does not identify all five-cabin 2010 boats. The broker's 2010 vessel has one Volvo Penta D3-110."
                }
              ],
              "selectionPower": {
                "kw": 81,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/47701949_FR-VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 81
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2010",
              "label": "2010 build",
              "year": 2010,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Bavaria Cruiser 55\" \"2010\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-104552-volvopenta-d3110-1"
        },
        {
          "name": "Bavaria Cruiser 56",
          "boatType": "sailing-yacht",
          "yachtModelId": 529933,
          "sourceModelIds": [
            529933
          ],
          "sourceModelNames": [
            "Bavaria Cruiser 56 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-529933-yanmar-4jh4hte-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-HTE",
              "engineDisplayName": "Yanmar 4JH4-HTE",
              "engineReferenceId": "yanmar_4jh4_hte",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset build years: 2014, 2015, 2016. Model-specific Cruiser 56 manufacturer table, distinct from Cruiser 55. Retain exact HTE suffix.",
              "source": {
                "id": "bavaria-research-cr-line-early",
                "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                "note": "Dataset build years: 2014, 2015, 2016. Model-specific Cruiser 56 manufacturer table, distinct from Cruiser 55. Retain exact HTE suffix. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
              },
              "sources": [
                {
                  "id": "bavaria-research-cr-line-early",
                  "title": "Bavaria Cruiser Line manufacturer brochure: 56, 50, 46, 41, 37, 33",
                  "url": "https://www.bavaria-yachts.it/uploads/1/9/9/2/19921925/brochure_cruiser_56-50-46-41-37-33_eng.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 11, 17, 21, 25, 28, 33, 39 / model-specific technical tables",
                  "evidence": "Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification.",
                  "note": "Dataset build years: 2014, 2015, 2016. Model-specific Cruiser 56 manufacturer table, distinct from Cruiser 55. Retain exact HTE suffix. Tables explicitly list Cruiser 56 Yanmar 4JH4-HTE; 50 Volvo D2-75; 46 D2-55; 41 D1-30; 40 S D1-30; 37 D1-20; 33 D1-20. This is the older Farr-series brochure, not an all-year specification."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Bavaria Cruiser 56 engine Yanmar 4JH4 HTE charter broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-529933-yanmar-4jh4hte-1"
        }
      ]
    },
    {
      "name": "Beneteau",
      "models": [
        {
          "name": "Beneteau 50",
          "boatType": "sailing-yacht",
          "yachtModelId": 60,
          "sourceModelIds": [
            60
          ],
          "sourceModelNames": [
            "Beneteau 50"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-60-yanmar-4jh3hte-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH3-HTE",
              "engineDisplayName": "Yanmar 4JH3-HTE",
              "engineReferenceId": "review_yanmar_4jh3hte",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2005. The 2005 Yachts France example documents this installation on the Farr Beneteau 50; not universal factory fit and not the later Oceanis 50 Family.",
              "source": {
                "id": "bengrand-ben50-yachts-france",
                "title": "Yachts France: 2005 Beneteau 50, Beaulieu-sur-Mer, seller listing",
                "url": "https://de.boats.com/segelboote/2005-beneteau-50-10114530/",
                "kind": "documented-vessel-example",
                "locator": "Bootsangaben and Motorisierung; seller YACHTS FRANCE; listing 10114530",
                "evidence": "The seller identifies a 2005 Beneteau 50 and a Yanmar 4JH3-HTE, with engine year 2005. This is one vessel, not a factory-wide specification.",
                "note": "Dataset year: 2005. The 2005 Yachts France example documents this installation on the Farr Beneteau 50; not universal factory fit and not the later Oceanis 50 Family. The seller identifies a 2005 Beneteau 50 and a Yanmar 4JH3-HTE, with engine year 2005. This is one vessel, not a factory-wide specification."
              },
              "sources": [
                {
                  "id": "bengrand-ben50-yachts-france",
                  "title": "Yachts France: 2005 Beneteau 50, Beaulieu-sur-Mer, seller listing",
                  "url": "https://de.boats.com/segelboote/2005-beneteau-50-10114530/",
                  "kind": "documented-vessel-example",
                  "locator": "Bootsangaben and Motorisierung; seller YACHTS FRANCE; listing 10114530",
                  "evidence": "The seller identifies a 2005 Beneteau 50 and a Yanmar 4JH3-HTE, with engine year 2005. This is one vessel, not a factory-wide specification.",
                  "note": "Dataset year: 2005. The 2005 Yachts France example documents this installation on the Farr Beneteau 50; not universal factory fit and not the later Oceanis 50 Family. The seller identifies a 2005 Beneteau 50 and a Yanmar 4JH3-HTE, with engine year 2005. This is one vessel, not a factory-wide specification."
                }
              ],
              "selectionPower": {
                "kw": 71.4,
                "sources": [
                  "https://nhmr.nl/wp-content/uploads/2022/03/YANMAR-USE-AND-MAINTENANCE-4JH3-TE-TCE-HTE-DTE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 71.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2005",
              "label": "2005 build",
              "year": 2005,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Beneteau 50\" \"2005\" \"4JH\"",
              "\"Beneteau 50\" \"2005\" \"4JH3-HTE\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-60-yanmar-4jh3hte-1"
        },
        {
          "name": "First 27",
          "boatType": "sailing-yacht",
          "yachtModelId": 31873167,
          "sourceModelIds": [
            31873167
          ],
          "sourceModelNames": [
            "First 27"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-31873167-yanmar-2ym15-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "2YM15",
              "engineDisplayName": "Yanmar 2YM15",
              "engineReferenceId": "yanmar_2ym15",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2022. Modern Seascape-derived First 27, fixed-keel inboard version. The manufacturer equipment list explicitly separates First 27 from First 27 SE. Not the 1970s/1980s First 27 or an SE outboard installation.",
              "source": {
                "id": "bengrand-first27-beneteau-spec",
                "title": "Beneteau First 27 / First 27 SE general equipment list, North America",
                "url": "https://signature-yachts.com/wp-content/uploads/2023/03/First-27SE-specs.pdf",
                "kind": "manufacturer-specification",
                "locator": "ENGINE; separate FIRST 27 VERSION and FIRST 27 SE VERSION headings",
                "evidence": "The First 27 version explicitly receives a Yanmar 2YM15 inboard. The SE version instead has provision for an optional outboard; the two versions must not be conflated.",
                "note": "Dataset year: 2022. Modern Seascape-derived First 27, fixed-keel inboard version. The manufacturer equipment list explicitly separates First 27 from First 27 SE. Not the 1970s/1980s First 27 or an SE outboard installation. The First 27 version explicitly receives a Yanmar 2YM15 inboard. The SE version instead has provision for an optional outboard; the two versions must not be conflated."
              },
              "sources": [
                {
                  "id": "bengrand-first27-beneteau-spec",
                  "title": "Beneteau First 27 / First 27 SE general equipment list, North America",
                  "url": "https://signature-yachts.com/wp-content/uploads/2023/03/First-27SE-specs.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "ENGINE; separate FIRST 27 VERSION and FIRST 27 SE VERSION headings",
                  "evidence": "The First 27 version explicitly receives a Yanmar 2YM15 inboard. The SE version instead has provision for an optional outboard; the two versions must not be conflated.",
                  "note": "Dataset year: 2022. Modern Seascape-derived First 27, fixed-keel inboard version. The manufacturer equipment list explicitly separates First 27 from First 27 SE. Not the 1970s/1980s First 27 or an SE outboard installation. The First 27 version explicitly receives a Yanmar 2YM15 inboard. The SE version instead has provision for an optional outboard; the two versions must not be conflated."
                }
              ],
              "selectionPower": {
                "kw": 10,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/2ym15/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 10
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"First 27\" \"2YM15\"",
              "Beneteau First 27 inboard \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-31873167-yanmar-2ym15-1"
        },
        {
          "name": "First 35",
          "boatType": "sailing-yacht",
          "yachtModelId": 101324,
          "sourceModelIds": [
            101324
          ],
          "sourceModelNames": [
            "First 35"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-101324-yanmar-3ym30-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2011. Layline's 2011 modern First 35 example only; not the older Jean Berret First 35 design. The source prints 3YM30 without AE, which is retained as written.",
              "source": {
                "id": "bengrand-first35-layline-2011",
                "title": "Layline Yacht Broker: First 35, 2011",
                "url": "https://www.layline.com.br/seminovos/Veleiro/1635/",
                "kind": "documented-vessel-example",
                "locator": "FIRST 35; 2011 - 35 pes; Motorizacao",
                "evidence": "The broker specifies a 2011 Yanmar 3YM30, 29 hp, in this 2011 First 35. The listing also mentions a later keel update.",
                "note": "Dataset year: 2011. Layline's 2011 modern First 35 example only; not the older Jean Berret First 35 design. The source prints 3YM30 without AE, which is retained as written. The broker specifies a 2011 Yanmar 3YM30, 29 hp, in this 2011 First 35. The listing also mentions a later keel update."
              },
              "sources": [
                {
                  "id": "bengrand-first35-layline-2011",
                  "title": "Layline Yacht Broker: First 35, 2011",
                  "url": "https://www.layline.com.br/seminovos/Veleiro/1635/",
                  "kind": "documented-vessel-example",
                  "locator": "FIRST 35; 2011 - 35 pes; Motorizacao",
                  "evidence": "The broker specifies a 2011 Yanmar 3YM30, 29 hp, in this 2011 First 35. The listing also mentions a later keel update.",
                  "note": "Dataset year: 2011. Layline's 2011 modern First 35 example only; not the older Jean Berret First 35 design. The source prints 3YM30 without AE, which is retained as written. The broker specifies a 2011 Yanmar 3YM30, 29 hp, in this 2011 First 35. The listing also mentions a later keel update."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"First 35\" \"2011\" \"3YM\"",
              "\"Beneteau First 35\" \"2011\" engine broker Yanmar"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-101324-yanmar-3ym30-1"
        },
        {
          "name": "First 36",
          "boatType": "sailing-yacht",
          "yachtModelId": 32585710,
          "sourceModelIds": [
            32585710
          ],
          "sourceModelNames": [
            "First 36"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-32585710-yanmar-3ym30ae-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2026, 2025, 2024, 2022. Modern Manuard/Seascape First 36, not First 36.7 or First 36 SE. The Beneteau/Yanmar panel explicitly prints AE and 3200 rpm; do not substitute the 3600-rpm 3YM30 curve. Publication does not establish every individual boat across these years.",
              "source": {
                "id": "bengrand-beneteau-yanmar-brochure",
                "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                "note": "Dataset years: 2026, 2025, 2024, 2022. Modern Manuard/Seascape First 36, not First 36.7 or First 36 SE. The Beneteau/Yanmar panel explicitly prints AE and 3200 rpm; do not substitute the 3600-rpm 3YM30 curve. Publication does not establish every individual boat across these years. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
              },
              "sources": [
                {
                  "id": "bengrand-beneteau-yanmar-brochure",
                  "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                  "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                  "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                  "note": "Dataset years: 2026, 2025, 2024, 2022. Modern Manuard/Seascape First 36, not First 36.7 or First 36 SE. The Beneteau/Yanmar panel explicitly prints AE and 3200 rpm; do not substitute the 3600-rpm 3YM30 curve. Publication does not establish every individual boat across these years. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-32585710-yanmar-3ym30-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": null,
              "curveAvailable": false,
              "curveBlockedReason": "Conflicting explicit manufacturer evidence identifies 3YM30AE at 3200 rpm, while this boat specification uses generic unsuffixed 3YM30 nomenclature. Preserve the published label, but do not attach the older 3600-rpm 3YM30 curve unless the individual engine version is independently established.",
              "engineCount": 1,
              "applicability": "Navar-hosted manufacturer sheet for the same modern First 36 prints generic 3YM30, 21 kW / 29 hp, without AE. Version identity is ambiguous because the explicit joint Beneteau/Yanmar model panel names 3YM30AE at 3200 rpm. This may be abbreviated brochure nomenclature, not a separate engine option or factory proof of the older 3600-rpm 3YM30 hardware. Verify the engine plate; this generic label must not authorize the old curve.",
              "source": {
                "id": "bengrand-first36-beneteau-spec",
                "title": "Beneteau First 36 specification, Navar-hosted manufacturer document",
                "url": "https://www.navaryacht.com/wp-content/uploads/2023/11/36.pdf",
                "kind": "manufacturer-specification",
                "locator": "PROPULSION",
                "evidence": "The document calls the engine Yanmar 3YM30, 21 kW / 29 hp, and separately names the SD25 saildrive. It does not print the AE engine suffix in that passage.",
                "note": "Navar-hosted manufacturer sheet for the same modern First 36 prints generic 3YM30, 21 kW / 29 hp, without AE. Version identity is ambiguous because the explicit joint Beneteau/Yanmar model panel names 3YM30AE at 3200 rpm. This may be abbreviated brochure nomenclature, not a separate engine option or factory proof of the older 3600-rpm 3YM30 hardware. Verify the engine plate; this generic label must not authorize the old curve. The document calls the engine Yanmar 3YM30, 21 kW / 29 hp, and separately names the SD25 saildrive. It does not print the AE engine suffix in that passage."
              },
              "sources": [
                {
                  "id": "bengrand-first36-beneteau-spec",
                  "title": "Beneteau First 36 specification, Navar-hosted manufacturer document",
                  "url": "https://www.navaryacht.com/wp-content/uploads/2023/11/36.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PROPULSION",
                  "evidence": "The document calls the engine Yanmar 3YM30, 21 kW / 29 hp, and separately names the SD25 saildrive. It does not print the AE engine suffix in that passage.",
                  "note": "Navar-hosted manufacturer sheet for the same modern First 36 prints generic 3YM30, 21 kW / 29 hp, without AE. Version identity is ambiguous because the explicit joint Beneteau/Yanmar model panel names 3YM30AE at 3200 rpm. This may be abbreviated brochure nomenclature, not a separate engine option or factory proof of the older 3600-rpm 3YM30 hardware. Verify the engine plate; this generic label must not authorize the old curve. The document calls the engine Yanmar 3YM30, 21 kW / 29 hp, and separately names the SD25 saildrive. It does not print the AE engine suffix in that passage."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Beneteau First 36 \"3YM30\"",
              "\"BENETEAU x YANMAR\" brochure"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-32585710-yanmar-3ym30ae-1"
        },
        {
          "name": "First 44",
          "boatType": "sailing-yacht",
          "yachtModelId": 31443948,
          "sourceModelIds": [
            31443948
          ],
          "sourceModelNames": [
            "First 44"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-31443948-yanmar-4jh57-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2023. Beneteau's modern First 44 financing configuration explicitly names 4JH57; the offer is not a dated build record for the dataset boats. Not First 44.7 or an assumption about a separate electric demonstration boat.",
              "source": {
                "id": "bengrand-first44-beneteau",
                "title": "Beneteau: Financez votre First 44",
                "url": "https://www.beneteau.com/fr/financez-votre-first-44",
                "kind": "manufacturer-specification",
                "locator": "Motorisation",
                "evidence": "Beneteau explicitly identifies the offered First 44 configuration as Yanmar 4JH57 CR SD, 42 kW / 57 hp. CR and SD describe the fuel system and drive, not another engine model.",
                "note": "Dataset year: 2023. Beneteau's modern First 44 financing configuration explicitly names 4JH57; the offer is not a dated build record for the dataset boats. Not First 44.7 or an assumption about a separate electric demonstration boat. Beneteau explicitly identifies the offered First 44 configuration as Yanmar 4JH57 CR SD, 42 kW / 57 hp. CR and SD describe the fuel system and drive, not another engine model."
              },
              "sources": [
                {
                  "id": "bengrand-first44-beneteau",
                  "title": "Beneteau: Financez votre First 44",
                  "url": "https://www.beneteau.com/fr/financez-votre-first-44",
                  "kind": "manufacturer-specification",
                  "locator": "Motorisation",
                  "evidence": "Beneteau explicitly identifies the offered First 44 configuration as Yanmar 4JH57 CR SD, 42 kW / 57 hp. CR and SD describe the fuel system and drive, not another engine model.",
                  "note": "Dataset year: 2023. Beneteau's modern First 44 financing configuration explicitly names 4JH57; the offer is not a dated build record for the dataset boats. Not First 44.7 or an assumption about a separate electric demonstration boat. Beneteau explicitly identifies the offered First 44 configuration as Yanmar 4JH57 CR SD, 42 kW / 57 hp. CR and SD describe the fuel system and drive, not another engine model."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"First 44\" \"4JH\"",
              "\"First 44\" \"4JH57\" site:beneteau.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-31443948-yanmar-4jh57-1"
        },
        {
          "name": "First 53",
          "boatType": "sailing-yacht",
          "yachtModelId": 10624523,
          "sourceModelIds": [
            10624523
          ],
          "sourceModelNames": [
            "First 53 - 3 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10624523-yanmar-4jh80-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2022, 2020. Modern Biscontini/Argento First Yacht 53, also sold as First 53. The Beneteau/Yanmar model panel identifies 4JH80; inconsistent power typography in that panel is not used for ratings. Not the older First 53F5.",
              "source": {
                "id": "bengrand-beneteau-yanmar-brochure",
                "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                "note": "Dataset years: 2022, 2020. Modern Biscontini/Argento First Yacht 53, also sold as First 53. The Beneteau/Yanmar model panel identifies 4JH80; inconsistent power typography in that panel is not used for ratings. Not the older First 53F5. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
              },
              "sources": [
                {
                  "id": "bengrand-beneteau-yanmar-brochure",
                  "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                  "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                  "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                  "note": "Dataset years: 2022, 2020. Modern Biscontini/Argento First Yacht 53, also sold as First 53. The Beneteau/Yanmar model panel identifies 4JH80; inconsistent power typography in that panel is not used for ratings. Not the older First 53F5. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-10624523-yanmar-4jh110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "ZUMA, 2020 First 53, engine year 2020, as listed by Flagship Yacht Sales. Documents the larger installation, not the engine on every 2020 or 2022 boat.",
              "source": {
                "id": "bengrand-first53-zuma-2020",
                "title": "Flagship Yacht Sales: ZUMA, 2020 Beneteau First 53, seller listing",
                "url": "https://www.boattrader.com/boat/2020-beneteau-first-53-9804165/",
                "kind": "documented-vessel-example",
                "locator": "Boat Details; Propulsion",
                "evidence": "The original selling broker lists ZUMA as a 2020 First 53 with one Yanmar 4JH110, 110 hp, engine year 2020.",
                "note": "ZUMA, 2020 First 53, engine year 2020, as listed by Flagship Yacht Sales. Documents the larger installation, not the engine on every 2020 or 2022 boat. The original selling broker lists ZUMA as a 2020 First 53 with one Yanmar 4JH110, 110 hp, engine year 2020."
              },
              "sources": [
                {
                  "id": "bengrand-first53-zuma-2020",
                  "title": "Flagship Yacht Sales: ZUMA, 2020 Beneteau First 53, seller listing",
                  "url": "https://www.boattrader.com/boat/2020-beneteau-first-53-9804165/",
                  "kind": "documented-vessel-example",
                  "locator": "Boat Details; Propulsion",
                  "evidence": "The original selling broker lists ZUMA as a 2020 First 53 with one Yanmar 4JH110, 110 hp, engine year 2020.",
                  "note": "ZUMA, 2020 First 53, engine year 2020, as listed by Flagship Yacht Sales. Documents the larger installation, not the engine on every 2020 or 2022 boat. The original selling broker lists ZUMA as a 2020 First 53 with one Yanmar 4JH110, 110 hp, engine year 2020."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"First 53\" \"engine model\"",
              "\"First 53\" \"4JH80\" site:murrayyachtsales.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10624523-yanmar-4jh80-1"
        },
        {
          "name": "Oceanis 30.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 10238965,
          "sourceModelIds": [
            10238965
          ],
          "sourceModelNames": [
            "Oceanis 30.1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10238965-yanmar-2ym15-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "2YM15",
              "engineDisplayName": "Yanmar 2YM15",
              "engineReferenceId": "yanmar_2ym15",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separate 2019-listed inland-waterways-only version. Its navigation restriction must not be dropped or treated as the general seagoing specification.",
              "source": {
                "id": "bengrand-oc301-2019-price",
                "title": "Beneteau Oceanis 30.1 retail list dated 1 October 2019",
                "url": "https://www.yachtingstargroup.com/wp-content/uploads/2020/04/Listino-30.1.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, MOTORIZZAZIONE; codes 1Y4 and 1YB",
                "evidence": "The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways.",
                "note": "Separate 2019-listed inland-waterways-only version. Its navigation restriction must not be dropped or treated as the general seagoing specification. The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways."
              },
              "sources": [
                {
                  "id": "bengrand-oc301-2019-price",
                  "title": "Beneteau Oceanis 30.1 retail list dated 1 October 2019",
                  "url": "https://www.yachtingstargroup.com/wp-content/uploads/2020/04/Listino-30.1.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, MOTORIZZAZIONE; codes 1Y4 and 1YB",
                  "evidence": "The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways.",
                  "note": "Separate 2019-listed inland-waterways-only version. Its navigation restriction must not be dropped or treated as the general seagoing specification. The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways."
                }
              ],
              "selectionPower": {
                "kw": 10,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/2ym15/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 10
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-10238965-yanmar-3ym20-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2020. Explicit engine version on the 1 October 2019 Oceanis 30.1 retail list; suitable period evidence, not identification of all four dataset examples.",
              "source": {
                "id": "bengrand-oc301-2019-price",
                "title": "Beneteau Oceanis 30.1 retail list dated 1 October 2019",
                "url": "https://www.yachtingstargroup.com/wp-content/uploads/2020/04/Listino-30.1.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, MOTORIZZAZIONE; codes 1Y4 and 1YB",
                "evidence": "The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways.",
                "note": "Dataset year: 2020. Explicit engine version on the 1 October 2019 Oceanis 30.1 retail list; suitable period evidence, not identification of all four dataset examples. The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways."
              },
              "sources": [
                {
                  "id": "bengrand-oc301-2019-price",
                  "title": "Beneteau Oceanis 30.1 retail list dated 1 October 2019",
                  "url": "https://www.yachtingstargroup.com/wp-content/uploads/2020/04/Listino-30.1.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, MOTORIZZAZIONE; codes 1Y4 and 1YB",
                  "evidence": "The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways.",
                  "note": "Dataset year: 2020. Explicit engine version on the 1 October 2019 Oceanis 30.1 retail list; suitable period evidence, not identification of all four dataset examples. The list offers Yanmar 3YM20, 15 kW / 21 hp, and a Yanmar 2YM15, 10 kW / 14 hp, version expressly restricted to inland waterways."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-10238965-torqeedo-cruise60fptorqlink-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Torqeedo",
              "engineModel": "Cruise 6.0 FP TorqLink",
              "engineDisplayName": "Torqeedo Cruise 6.0 FP TorqLink",
              "engineReferenceId": null,
              "curveAvailable": false,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Later 2024 dealer-listed electric pod version, approved for inland waters only. Not evidence that the dataset's 2020 boats were offered or fitted with this version. Electric identity only; no diesel consumption curve applies.",
              "source": {
                "id": "bengrand-oc301-electric-2024",
                "title": "Risbjerg: Oceanis 30.1 price list 2024",
                "url": "https://www.risbjerg.dk/wp-content/uploads/2019/01/Oceanis-30.1.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "Page 1, PROPULSION; codes 1YB and 1T41",
                "evidence": "The dealer lists the 3YM20 diesel and a Torqeedo Cruise 6.0 FP TorqLink pod option. The electric version is approved for inland waters only.",
                "note": "Later 2024 dealer-listed electric pod version, approved for inland waters only. Not evidence that the dataset's 2020 boats were offered or fitted with this version. Electric identity only; no diesel consumption curve applies. The dealer lists the 3YM20 diesel and a Torqeedo Cruise 6.0 FP TorqLink pod option. The electric version is approved for inland waters only."
              },
              "sources": [
                {
                  "id": "bengrand-oc301-electric-2024",
                  "title": "Risbjerg: Oceanis 30.1 price list 2024",
                  "url": "https://www.risbjerg.dk/wp-content/uploads/2019/01/Oceanis-30.1.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Page 1, PROPULSION; codes 1YB and 1T41",
                  "evidence": "The dealer lists the 3YM20 diesel and a Torqeedo Cruise 6.0 FP TorqLink pod option. The electric version is approved for inland waters only.",
                  "note": "Later 2024 dealer-listed electric pod version, approved for inland waters only. Not evidence that the dataset's 2020 boats were offered or fitted with this version. Electric identity only; no diesel consumption curve applies. The dealer lists the 3YM20 diesel and a Torqeedo Cruise 6.0 FP TorqLink pod option. The electric version is approved for inland waters only."
                }
              ],
              "selectionPower": null,
              "selectionRole": "electric",
              "selectionLabel": "Electric option"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 30.1\" \"2YM15\" \"3YM20\"",
              "\"Oceanis 30.1\" \"Cruise\" Torqeedo site:risbjerg.dk"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10238965-yanmar-2ym15-1"
        },
        {
          "name": "Oceanis 31",
          "boatType": "sailing-yacht",
          "yachtModelId": 100305,
          "sourceModelIds": [
            100305
          ],
          "sourceModelNames": [
            "Oceanis 31"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100305-yanmar-3ym20-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2017. De Valk reference 204034 documents a 2017 Oceanis 31 with a 2017 installation. Does not prove the engine in the dataset's particular boat.",
              "source": {
                "id": "bengrand-oc31-devalk-2017",
                "title": "De Valk: Beneteau Oceanis 31, 2017, reference 204034",
                "url": "https://www.devalk.nl/en/yachtbrokerage/204034/BENETEAU-OCEANIS-31.html",
                "kind": "documented-vessel-example",
                "locator": "Built; Machinery",
                "evidence": "The 2017 vessel has one Yanmar 3YM20, 21 hp, installed in 2017, with shaft drive.",
                "note": "Dataset year: 2017. De Valk reference 204034 documents a 2017 Oceanis 31 with a 2017 installation. Does not prove the engine in the dataset's particular boat. The 2017 vessel has one Yanmar 3YM20, 21 hp, installed in 2017, with shaft drive."
              },
              "sources": [
                {
                  "id": "bengrand-oc31-devalk-2017",
                  "title": "De Valk: Beneteau Oceanis 31, 2017, reference 204034",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/204034/BENETEAU-OCEANIS-31.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built; Machinery",
                  "evidence": "The 2017 vessel has one Yanmar 3YM20, 21 hp, installed in 2017, with shaft drive.",
                  "note": "Dataset year: 2017. De Valk reference 204034 documents a 2017 Oceanis 31 with a 2017 installation. Does not prove the engine in the dataset's particular boat. The 2017 vessel has one Yanmar 3YM20, 21 hp, installed in 2017, with shaft drive."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 31\" \"2017\" \"3YM20\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100305-yanmar-3ym20-1"
        },
        {
          "name": "Oceanis 34",
          "boatType": "sailing-yacht",
          "yachtModelId": 100307,
          "sourceModelIds": [
            100307
          ],
          "sourceModelNames": [
            "Oceanis 34"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100307-yanmar-3ym30-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2014, 2013, 2012. Evidence is specifically the 2013 Limited Edition sheet for this Oceanis 34 generation. Neither adjacent year nor every trim is established; not Oceanis 34.1. Source prints 3YM30 without AE.",
              "source": {
                "id": "bengrand-oc34-2013-price",
                "title": "Oceanis 34 Limited Edition 2013, Bohus Yachts specification/price sheet",
                "url": "https://www.bohusyachts.se/wp-content/uploads/2018/05/Oceanis-34-2013-B-SWE-.xlsx.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "OCEANIS 34 Limited Edition 2013; motorization line",
                "evidence": "The dealer sheet explicitly names Yanmar 3YM30, 21 kW / 29 hp, for the 2013 Limited Edition Oceanis 34.",
                "note": "Dataset years: 2014, 2013, 2012. Evidence is specifically the 2013 Limited Edition sheet for this Oceanis 34 generation. Neither adjacent year nor every trim is established; not Oceanis 34.1. Source prints 3YM30 without AE. The dealer sheet explicitly names Yanmar 3YM30, 21 kW / 29 hp, for the 2013 Limited Edition Oceanis 34."
              },
              "sources": [
                {
                  "id": "bengrand-oc34-2013-price",
                  "title": "Oceanis 34 Limited Edition 2013, Bohus Yachts specification/price sheet",
                  "url": "https://www.bohusyachts.se/wp-content/uploads/2018/05/Oceanis-34-2013-B-SWE-.xlsx.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "OCEANIS 34 Limited Edition 2013; motorization line",
                  "evidence": "The dealer sheet explicitly names Yanmar 3YM30, 21 kW / 29 hp, for the 2013 Limited Edition Oceanis 34.",
                  "note": "Dataset years: 2014, 2013, 2012. Evidence is specifically the 2013 Limited Edition sheet for this Oceanis 34 generation. Neither adjacent year nor every trim is established; not Oceanis 34.1. Source prints 3YM30 without AE. The dealer sheet explicitly names Yanmar 3YM30, 21 kW / 29 hp, for the 2013 Limited Edition Oceanis 34."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 34\" \"2013\" engine Yanmar broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100307-yanmar-3ym30-1"
        },
        {
          "name": "Oceanis 34.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 25032645,
          "sourceModelIds": [
            25032645
          ],
          "sourceModelNames": [
            "Oceanis 34.1 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-25032645-yanmar-3ym20-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2023. Modern Lombard Oceanis 34.1, explicitly named in the Beneteau/Yanmar brochure and later dealer list. Not Oceanis 34; the actual 2023 charter boats remain to be checked.",
              "source": {
                "id": "bengrand-beneteau-yanmar-brochure",
                "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                "note": "Dataset year: 2023. Modern Lombard Oceanis 34.1, explicitly named in the Beneteau/Yanmar brochure and later dealer list. Not Oceanis 34; the actual 2023 charter boats remain to be checked. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
              },
              "sources": [
                {
                  "id": "bengrand-beneteau-yanmar-brochure",
                  "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                  "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                  "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                  "note": "Dataset year: 2023. Modern Lombard Oceanis 34.1, explicitly named in the Beneteau/Yanmar brochure and later dealer list. Not Oceanis 34; the actual 2023 charter boats remain to be checked. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
                },
                {
                  "id": "bengrand-oc341-2025-price",
                  "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
                  "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Page 1, PROPULSION; 1YB, 1ZF0 and 1T41U",
                  "evidence": "The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia.",
                  "note": "Dataset year: 2023. Modern Lombard Oceanis 34.1, explicitly named in the Beneteau/Yanmar brochure and later dealer list. Not Oceanis 34; the actual 2023 charter boats remain to be checked. The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-25032645-yanmar-3ym30ae-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicit 2025 dealer-listed propulsion upgrade. Retain AE; this later document alone does not prove the option or installation on the dataset's 2023 boats.",
              "source": {
                "id": "bengrand-oc341-2025-price",
                "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
                "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "Page 1, PROPULSION; 1YB, 1ZF0 and 1T41U",
                "evidence": "The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia.",
                "note": "Explicit 2025 dealer-listed propulsion upgrade. Retain AE; this later document alone does not prove the option or installation on the dataset's 2023 boats. The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia."
              },
              "sources": [
                {
                  "id": "bengrand-oc341-2025-price",
                  "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
                  "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Page 1, PROPULSION; 1YB, 1ZF0 and 1T41U",
                  "evidence": "The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia.",
                  "note": "Explicit 2025 dealer-listed propulsion upgrade. Retain AE; this later document alone does not prove the option or installation on the dataset's 2023 boats. The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-25032645-torqeedo-cruise60fptorqlink-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Torqeedo",
              "engineModel": "Cruise 6.0 FP TorqLink",
              "engineDisplayName": "Torqeedo Cruise 6.0 FP TorqLink",
              "engineReferenceId": null,
              "curveAvailable": false,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicit 2025-listed electric option, inland-waterway-only, except Australia. Availability on a 2023 build is not established. No diesel curve may be borrowed for this electric motor.",
              "source": {
                "id": "bengrand-oc341-2025-price",
                "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
                "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "Page 1, PROPULSION; 1YB, 1ZF0 and 1T41U",
                "evidence": "The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia.",
                "note": "Explicit 2025-listed electric option, inland-waterway-only, except Australia. Availability on a 2023 build is not established. No diesel curve may be borrowed for this electric motor. The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia."
              },
              "sources": [
                {
                  "id": "bengrand-oc341-2025-price",
                  "title": "Risbjerg: Beneteau Oceanis 34.1 price list 2025",
                  "url": "https://www.risbjerg.dk/wp-content/uploads/2021/09/Beneteau-Oceanis-34.1-2025.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Page 1, PROPULSION; 1YB, 1ZF0 and 1T41U",
                  "evidence": "The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia.",
                  "note": "Explicit 2025-listed electric option, inland-waterway-only, except Australia. Availability on a 2023 build is not established. No diesel curve may be borrowed for this electric motor. The list explicitly offers 3YM20 and 3YM30AE diesels, plus a Torqeedo Cruise 6.0 FP TorqLink pod. The electric version is inland-waterway-only and excluded for Australia."
                }
              ],
              "selectionPower": null,
              "selectionRole": "electric",
              "selectionLabel": "Electric option"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 34.1\" \"3YM30\" Beneteau specifications",
              "\"Oceanis 34.1\" \"3YM30AE\" site:risbjerg.dk"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-25032645-yanmar-3ym20-1"
        },
        {
          "name": "Oceanis 35",
          "boatType": "sailing-yacht",
          "yachtModelId": 841487,
          "sourceModelIds": [
            841487
          ],
          "sourceModelNames": [
            "Oceanis 35"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-841487-yanmar-3ym20-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Antipode's first-owner 2015 Oceanis 35 Cruiser example has this different engine. No assumption that the difference is determined by build year alone.",
              "source": {
                "id": "bengrand-oc35-antipode-2015",
                "title": "Antipode: 2015 Oceanis 35, Douarnenez, seller-origin listing",
                "url": "https://www.topbarcos.com/barco/2015-beneteau-oceanis-35-10327725/",
                "kind": "documented-vessel-example",
                "locator": "Seller ANTIPODE; Motor; seller description",
                "evidence": "Antipode's description of this first-owner 2015 Oceanis 35 explicitly identifies a Yanmar 3YM20, 21 hp. This differs from the documented 2016 3YM30AE boat.",
                "note": "Antipode's first-owner 2015 Oceanis 35 Cruiser example has this different engine. No assumption that the difference is determined by build year alone. Antipode's description of this first-owner 2015 Oceanis 35 explicitly identifies a Yanmar 3YM20, 21 hp. This differs from the documented 2016 3YM30AE boat."
              },
              "sources": [
                {
                  "id": "bengrand-oc35-antipode-2015",
                  "title": "Antipode: 2015 Oceanis 35, Douarnenez, seller-origin listing",
                  "url": "https://www.topbarcos.com/barco/2015-beneteau-oceanis-35-10327725/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller ANTIPODE; Motor; seller description",
                  "evidence": "Antipode's description of this first-owner 2015 Oceanis 35 explicitly identifies a Yanmar 3YM20, 21 hp. This differs from the documented 2016 3YM30AE boat.",
                  "note": "Antipode's first-owner 2015 Oceanis 35 Cruiser example has this different engine. No assumption that the difference is determined by build year alone. Antipode's description of this first-owner 2015 Oceanis 35 explicitly identifies a Yanmar 3YM20, 21 hp. This differs from the documented 2016 3YM30AE boat."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-841487-yanmar-3ym30ae-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2016, 2015. Network Yacht Brokers' 2016 three-cabin Oceanis 35 example only, not universal fit. Not Oceanis 35.1; AE is preserved.",
              "source": {
                "id": "bengrand-oc35-nyb-2016",
                "title": "Network Yacht Brokers Dublin: 2016 Beneteau Oceanis 35, reference 30292",
                "url": "https://www.networkyachtbrokers.com/boats_for_sale/Beneteau_Oceanis_35-30292.html/",
                "kind": "documented-vessel-example",
                "locator": "Year; Engine Make; Horsepower",
                "evidence": "The original broker's 2016 three-cabin Oceanis 35 has a Yanmar 3YM 30AE, 29 hp. Spacing is normalized to 3YM30AE without dropping AE.",
                "note": "Dataset years: 2016, 2015. Network Yacht Brokers' 2016 three-cabin Oceanis 35 example only, not universal fit. Not Oceanis 35.1; AE is preserved. The original broker's 2016 three-cabin Oceanis 35 has a Yanmar 3YM 30AE, 29 hp. Spacing is normalized to 3YM30AE without dropping AE."
              },
              "sources": [
                {
                  "id": "bengrand-oc35-nyb-2016",
                  "title": "Network Yacht Brokers Dublin: 2016 Beneteau Oceanis 35, reference 30292",
                  "url": "https://www.networkyachtbrokers.com/boats_for_sale/Beneteau_Oceanis_35-30292.html/",
                  "kind": "documented-vessel-example",
                  "locator": "Year; Engine Make; Horsepower",
                  "evidence": "The original broker's 2016 three-cabin Oceanis 35 has a Yanmar 3YM 30AE, 29 hp. Spacing is normalized to 3YM30AE without dropping AE.",
                  "note": "Dataset years: 2016, 2015. Network Yacht Brokers' 2016 three-cabin Oceanis 35 example only, not universal fit. Not Oceanis 35.1; AE is preserved. The original broker's 2016 three-cabin Oceanis 35 has a Yanmar 3YM 30AE, 29 hp. Spacing is normalized to 3YM30AE without dropping AE."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 35\" \"2016\" \"3YM\"",
              "\"Oceanis 35\" \"2015\" \"3YM20\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-841487-yanmar-3ym20-1"
        },
        {
          "name": "Oceanis 35.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 1323161,
          "sourceModelIds": [
            1323161
          ],
          "sourceModelNames": [
            "Oceanis 35.1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1323161-yanmar-3ym30ae-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2020, 2019, 2018, 2017. Nautivela's individual 2018 Oceanis 35.1 documents this exact engine; not a universal specification across these years. Do not collapse AE into 3YM30.",
              "source": {
                "id": "bengrand-oc351-nautivela-2018",
                "title": "Nautivela: Beneteau Oceanis 35.1 2018, vessel sheet 39064",
                "url": "https://nautivela.net/wp-content/uploads/2025/08/fitxa-39064.pdf",
                "kind": "documented-vessel-example",
                "locator": "MOTORIZACION: NUMERO DE MOTORES, MARCA, MODELO, ANO DEL MOTOR",
                "evidence": "The 2018 vessel sheet lists one Yanmar 3YM30AE, with engine year 2018.",
                "note": "Dataset years: 2020, 2019, 2018, 2017. Nautivela's individual 2018 Oceanis 35.1 documents this exact engine; not a universal specification across these years. Do not collapse AE into 3YM30. The 2018 vessel sheet lists one Yanmar 3YM30AE, with engine year 2018."
              },
              "sources": [
                {
                  "id": "bengrand-oc351-nautivela-2018",
                  "title": "Nautivela: Beneteau Oceanis 35.1 2018, vessel sheet 39064",
                  "url": "https://nautivela.net/wp-content/uploads/2025/08/fitxa-39064.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "MOTORIZACION: NUMERO DE MOTORES, MARCA, MODELO, ANO DEL MOTOR",
                  "evidence": "The 2018 vessel sheet lists one Yanmar 3YM30AE, with engine year 2018.",
                  "note": "Dataset years: 2020, 2019, 2018, 2017. Nautivela's individual 2018 Oceanis 35.1 documents this exact engine; not a universal specification across these years. Do not collapse AE into 3YM30. The 2018 vessel sheet lists one Yanmar 3YM30AE, with engine year 2018."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 35.1\" \"3YM\" brochure",
              "\"Oceanis 35.1\" \"3YM30AE\" site:nautivela.net"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1323161-yanmar-3ym30ae-1"
        },
        {
          "name": "Oceanis 37.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 38626558,
          "sourceModelIds": [
            38626558
          ],
          "sourceModelNames": [
            "Oceanis 37.1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-38626558-yanmar-3jh40-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2024. The 2024 dealer list explicitly identifies 3JH40 and Flagstaff's 2024 vessel specification corroborates it. The 12 kW Torqeedo electric option was also investigated, but its exact commercial model was not established and is not inferred from power.",
              "source": {
                "id": "bengrand-oc371-2024-price",
                "title": "Risbjerg: Oceanis 37.1 price list 2024",
                "url": "https://www.risbjerg.dk/wp-content/uploads/2023/08/Oceanis-37.1.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "Page 1, PROPULSION; codes 1ZJ0 and 1T51",
                "evidence": "The list names the 3JH40 diesel. A separate inland-only Torqeedo electric option is described by 48 V FP pod and 12 kW, without an exact commercial engine model in the reviewed passage.",
                "note": "Dataset year: 2024. The 2024 dealer list explicitly identifies 3JH40 and Flagstaff's 2024 vessel specification corroborates it. The 12 kW Torqeedo electric option was also investigated, but its exact commercial model was not established and is not inferred from power. The list names the 3JH40 diesel. A separate inland-only Torqeedo electric option is described by 48 V FP pod and 12 kW, without an exact commercial engine model in the reviewed passage."
              },
              "sources": [
                {
                  "id": "bengrand-oc371-2024-price",
                  "title": "Risbjerg: Oceanis 37.1 price list 2024",
                  "url": "https://www.risbjerg.dk/wp-content/uploads/2023/08/Oceanis-37.1.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Page 1, PROPULSION; codes 1ZJ0 and 1T51",
                  "evidence": "The list names the 3JH40 diesel. A separate inland-only Torqeedo electric option is described by 48 V FP pod and 12 kW, without an exact commercial engine model in the reviewed passage.",
                  "note": "Dataset year: 2024. The 2024 dealer list explicitly identifies 3JH40 and Flagstaff's 2024 vessel specification corroborates it. The 12 kW Torqeedo electric option was also investigated, but its exact commercial model was not established and is not inferred from power. The list names the 3JH40 diesel. A separate inland-only Torqeedo electric option is described by 48 V FP pod and 12 kW, without an exact commercial engine model in the reviewed passage."
                },
                {
                  "id": "bengrand-oc371-flagstaff-2024",
                  "title": "Flagstaff Marine: Beneteau Oceanis 37.1, 2024 specification",
                  "url": "https://flagstaffmarine.com.au/wp-content/themes/marine/pdf-converter/specifications.php?boat_id=316773",
                  "kind": "documented-vessel-example",
                  "locator": "General: Launch Year; Engine / Machinery",
                  "evidence": "The dealer's 2024 Oceanis 37.1 specification identifies Yanmar and the 3JH40 diesel, 29 kW / 40 hp.",
                  "note": "Dataset year: 2024. The 2024 dealer list explicitly identifies 3JH40 and Flagstaff's 2024 vessel specification corroborates it. The 12 kW Torqeedo electric option was also investigated, but its exact commercial model was not established and is not inferred from power. The dealer's 2024 Oceanis 37.1 specification identifies Yanmar and the 3JH40 diesel, 29 kW / 40 hp."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 37.1\" \"engine model\"",
              "\"Oceanis 37.1\" \"2024\" \"3JH40\"",
              "\"Oceanis 37.1\" \"Cruise\" \"12.0\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-38626558-yanmar-3jh40-1"
        },
        {
          "name": "Oceanis 38",
          "boatType": "sailing-yacht",
          "yachtModelId": 528770,
          "sourceModelIds": [
            528770
          ],
          "sourceModelNames": [
            "Oceanis 38 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-528770-yanmar-3ym30ae-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2016, 2015. De Valk's 2015 three-cabin lifting-keel Oceanis 38 Cruiser is the observed example. Not evidence for every trim, 2016 boat, or the later Oceanis 38.1.",
              "source": {
                "id": "bengrand-oc38-devalk-2015",
                "title": "De Valk: 2015 Beneteau Oceanis 38 Cruiser, reference 810669",
                "url": "https://www.devalk.nl/en/yachtbrokerage/810669/BENETEAU-OCEANIS-38-CRUISER.html",
                "kind": "documented-vessel-example",
                "locator": "Built; Machinery",
                "evidence": "The 2015 lifting-keel, three-cabin Oceanis 38 Cruiser has one Yanmar 3YM30AE, 29 hp, installed in 2015.",
                "note": "Dataset years: 2016, 2015. De Valk's 2015 three-cabin lifting-keel Oceanis 38 Cruiser is the observed example. Not evidence for every trim, 2016 boat, or the later Oceanis 38.1. The 2015 lifting-keel, three-cabin Oceanis 38 Cruiser has one Yanmar 3YM30AE, 29 hp, installed in 2015."
              },
              "sources": [
                {
                  "id": "bengrand-oc38-devalk-2015",
                  "title": "De Valk: 2015 Beneteau Oceanis 38 Cruiser, reference 810669",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/810669/BENETEAU-OCEANIS-38-CRUISER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built; Machinery",
                  "evidence": "The 2015 lifting-keel, three-cabin Oceanis 38 Cruiser has one Yanmar 3YM30AE, 29 hp, installed in 2015.",
                  "note": "Dataset years: 2016, 2015. De Valk's 2015 three-cabin lifting-keel Oceanis 38 Cruiser is the observed example. Not evidence for every trim, 2016 boat, or the later Oceanis 38.1. The 2015 lifting-keel, three-cabin Oceanis 38 Cruiser has one Yanmar 3YM30AE, 29 hp, installed in 2015."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 38\" \"3YM30\" broker",
              "\"Oceanis 38\" \"2015\" engine site:devalk.nl"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-528770-yanmar-3ym30ae-1"
        },
        {
          "name": "Oceanis 38.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 1327817,
          "sourceModelIds": [
            1327817
          ],
          "sourceModelNames": [
            "Oceanis 38.1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1327817-yanmar-3ym30ae-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2023, 2022, 2020, 2019, 2018, 2017. Explicitly named in the January 2021 list and the Beneteau/Yanmar brochure, which rates this AE engine at 3200 rpm. Publication is not proof of every individual boat or model year.",
              "source": {
                "id": "bengrand-oc381-2021-price",
                "title": "Beneteau Oceanis 38.1 retail list dated 1 January 2021",
                "url": "https://www.yachtingstargroup.com/wp-content/uploads/2021/04/Gennaio-2021-38.1.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, MOTORIZZAZIONE; codes 1ZF1 and 1ZJ1",
                "evidence": "The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive.",
                "note": "Dataset years: 2023, 2022, 2020, 2019, 2018, 2017. Explicitly named in the January 2021 list and the Beneteau/Yanmar brochure, which rates this AE engine at 3200 rpm. Publication is not proof of every individual boat or model year. The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive."
              },
              "sources": [
                {
                  "id": "bengrand-oc381-2021-price",
                  "title": "Beneteau Oceanis 38.1 retail list dated 1 January 2021",
                  "url": "https://www.yachtingstargroup.com/wp-content/uploads/2021/04/Gennaio-2021-38.1.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, MOTORIZZAZIONE; codes 1ZF1 and 1ZJ1",
                  "evidence": "The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive.",
                  "note": "Dataset years: 2023, 2022, 2020, 2019, 2018, 2017. Explicitly named in the January 2021 list and the Beneteau/Yanmar brochure, which rates this AE engine at 3200 rpm. Publication is not proof of every individual boat or model year. The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive."
                },
                {
                  "id": "bengrand-beneteau-yanmar-brochure",
                  "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                  "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                  "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                  "note": "Dataset years: 2023, 2022, 2020, 2019, 2018, 2017. Explicitly named in the January 2021 list and the Beneteau/Yanmar brochure, which rates this AE engine at 3200 rpm. Publication is not proof of every individual boat or model year. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1327817-yanmar-3jh40-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separate higher-output propulsion version explicitly offered in the January 2021 retail list. Do not assume this option was offered or fitted in every dataset year.",
              "source": {
                "id": "bengrand-oc381-2021-price",
                "title": "Beneteau Oceanis 38.1 retail list dated 1 January 2021",
                "url": "https://www.yachtingstargroup.com/wp-content/uploads/2021/04/Gennaio-2021-38.1.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, MOTORIZZAZIONE; codes 1ZF1 and 1ZJ1",
                "evidence": "The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive.",
                "note": "Separate higher-output propulsion version explicitly offered in the January 2021 retail list. Do not assume this option was offered or fitted in every dataset year. The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive."
              },
              "sources": [
                {
                  "id": "bengrand-oc381-2021-price",
                  "title": "Beneteau Oceanis 38.1 retail list dated 1 January 2021",
                  "url": "https://www.yachtingstargroup.com/wp-content/uploads/2021/04/Gennaio-2021-38.1.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, MOTORIZZAZIONE; codes 1ZF1 and 1ZJ1",
                  "evidence": "The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive.",
                  "note": "Separate higher-output propulsion version explicitly offered in the January 2021 retail list. Do not assume this option was offered or fitted in every dataset year. The list offers Yanmar 3YM30AE, 21 kW / 29 hp, or Yanmar 3JH40, 29 kW / 40 hp, both described separately from the saildrive."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 38.1\" \"3YM30AE\" specifications"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1327817-yanmar-3ym30ae-1"
        },
        {
          "name": "Oceanis 40.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 10307256,
          "sourceModelIds": [
            10307256,
            12530975
          ],
          "sourceModelNames": [
            "Oceanis 40.1",
            "Oceanis 40.1 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10307256-yanmar-4jh45-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2025, 2024, 2023, 2022, 2021. The Oceanis 40.1 panel in the Beneteau/Yanmar brochure explicitly lists 4JH45, not just a power rating. The panel is model evidence, not confirmation of every year or cabin layout.",
              "source": {
                "id": "bengrand-beneteau-yanmar-brochure",
                "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                "note": "Dataset years: 2025, 2024, 2023, 2022, 2021. The Oceanis 40.1 panel in the Beneteau/Yanmar brochure explicitly lists 4JH45, not just a power rating. The panel is model evidence, not confirmation of every year or cabin layout. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
              },
              "sources": [
                {
                  "id": "bengrand-beneteau-yanmar-brochure",
                  "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                  "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                  "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                  "note": "Dataset years: 2025, 2024, 2023, 2022, 2021. The Oceanis 40.1 panel in the Beneteau/Yanmar brochure explicitly lists 4JH45, not just a power rating. The panel is model evidence, not confirmation of every year or cabin layout. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 8
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 40.1\" \"4JH45\" \"4JH57\" brochure"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10307256-yanmar-4jh45-1"
        },
        {
          "name": "Oceanis 41",
          "boatType": "sailing-yacht",
          "yachtModelId": 515077,
          "sourceModelIds": [
            515077
          ],
          "sourceModelNames": [
            "Oceanis 41"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-515077-yanmar-3jh5e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH5E",
              "engineDisplayName": "Yanmar 3JH5E",
              "engineReferenceId": "yanmar_3jh5e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2014, 2013. Evidence is Flagstaff's specific 2013 Oceanis 41, HIN FRSPBDC159F313. Not Oceanis 41.1 and not proof of a universal 2014 specification.",
              "source": {
                "id": "bengrand-oc41-flagstaff-2013",
                "title": "Flagstaff Marine: Beneteau Oceanis 41, 2013 specification",
                "url": "https://flagstaffmarine.com.au/wp-content/themes/marine/pdf-converter/specifications.php?boat_id=323597",
                "kind": "documented-vessel-example",
                "locator": "General: Launch Year and HIN; Engine / Machinery",
                "evidence": "The 2013 Oceanis 41, HIN FRSPBDC159F313, is explicitly fitted with a Yanmar 3JH5E, 40 hp, saildrive installation.",
                "note": "Dataset years: 2014, 2013. Evidence is Flagstaff's specific 2013 Oceanis 41, HIN FRSPBDC159F313. Not Oceanis 41.1 and not proof of a universal 2014 specification. The 2013 Oceanis 41, HIN FRSPBDC159F313, is explicitly fitted with a Yanmar 3JH5E, 40 hp, saildrive installation."
              },
              "sources": [
                {
                  "id": "bengrand-oc41-flagstaff-2013",
                  "title": "Flagstaff Marine: Beneteau Oceanis 41, 2013 specification",
                  "url": "https://flagstaffmarine.com.au/wp-content/themes/marine/pdf-converter/specifications.php?boat_id=323597",
                  "kind": "documented-vessel-example",
                  "locator": "General: Launch Year and HIN; Engine / Machinery",
                  "evidence": "The 2013 Oceanis 41, HIN FRSPBDC159F313, is explicitly fitted with a Yanmar 3JH5E, 40 hp, saildrive installation.",
                  "note": "Dataset years: 2014, 2013. Evidence is Flagstaff's specific 2013 Oceanis 41, HIN FRSPBDC159F313. Not Oceanis 41.1 and not proof of a universal 2014 specification. The 2013 Oceanis 41, HIN FRSPBDC159F313, is explicitly fitted with a Yanmar 3JH5E, 40 hp, saildrive installation."
                }
              ],
              "selectionPower": {
                "kw": 28.7,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_3JH5E.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 28.7
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 41\" \"2013\" \"3JH5E\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-515077-yanmar-3jh5e-1"
        },
        {
          "name": "Oceanis 41.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 1065666,
          "sourceModelIds": [
            1065666
          ],
          "sourceModelNames": [
            "Oceanis 41.1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1065666-yanmar-4jh45-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2020, 2019, 2018, 2017, 2016, 2014. Evidence applies to the actual Oceanis 41.1 generation and does not resolve the anomalous 2014 dataset label. Do not transfer Oceanis 41 engine evidence or assign this setup automatically to that 2014 record.",
              "source": {
                "id": "bengrand-oc411-risbjerg-price",
                "title": "Risbjerg: Beneteau Oceanis 41.1 retail specification/price list",
                "url": "https://www.risbjerg.dk/wp-content/uploads/2015/11/OC-41.1.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "VERSION / Motor; code 1XD1",
                "evidence": "The Oceanis 41.1 list names Yanmar 4JH45 CR SD, 33 kW / 45 hp. This is not an Oceanis 41 specification.",
                "note": "Dataset years: 2020, 2019, 2018, 2017, 2016, 2014. Evidence applies to the actual Oceanis 41.1 generation and does not resolve the anomalous 2014 dataset label. Do not transfer Oceanis 41 engine evidence or assign this setup automatically to that 2014 record. The Oceanis 41.1 list names Yanmar 4JH45 CR SD, 33 kW / 45 hp. This is not an Oceanis 41 specification."
              },
              "sources": [
                {
                  "id": "bengrand-oc411-risbjerg-price",
                  "title": "Risbjerg: Beneteau Oceanis 41.1 retail specification/price list",
                  "url": "https://www.risbjerg.dk/wp-content/uploads/2015/11/OC-41.1.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "VERSION / Motor; code 1XD1",
                  "evidence": "The Oceanis 41.1 list names Yanmar 4JH45 CR SD, 33 kW / 45 hp. This is not an Oceanis 41 specification.",
                  "note": "Dataset years: 2020, 2019, 2018, 2017, 2016, 2014. Evidence applies to the actual Oceanis 41.1 generation and does not resolve the anomalous 2014 dataset label. Do not transfer Oceanis 41 engine evidence or assign this setup automatically to that 2014 record. The Oceanis 41.1 list names Yanmar 4JH45 CR SD, 33 kW / 45 hp. This is not an Oceanis 41 specification."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 41.1\" \"4JH45\" \"4JH40\"",
              "\"Oceanis 41.1\" \"4JH45\" brochure"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1065666-yanmar-4jh45-1"
        },
        {
          "name": "Oceanis 43",
          "boatType": "sailing-yacht",
          "yachtModelId": 100343,
          "sourceModelIds": [
            100343
          ],
          "sourceModelNames": [
            "Oceanis 43"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100343-yanmar-4jh4e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4E",
              "engineDisplayName": "Yanmar 4JH4E",
              "engineReferenceId": "review_yanmar_4jh4e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2009. Prime Time, 2009 Oceanis 43, as documented by Grand Yachts. Installation evidence only; no universal factory-fit claim.",
              "source": {
                "id": "bengrand-oc43-grandyachts-2009",
                "title": "Grand Yachts: Prime Time, 2009 Beneteau Oceanis 43",
                "url": "https://www.grandyachts.com/our-inventory/used-boats-for-sale/?boat_id=7624941",
                "kind": "documented-vessel-example",
                "locator": "Year; Engine 1: Make & Model, Year and Power",
                "evidence": "Prime Time is listed as a 2009 Oceanis 43 with a 2009 Yanmar 4JH4E, 54 hp.",
                "note": "Dataset year: 2009. Prime Time, 2009 Oceanis 43, as documented by Grand Yachts. Installation evidence only; no universal factory-fit claim. Prime Time is listed as a 2009 Oceanis 43 with a 2009 Yanmar 4JH4E, 54 hp."
              },
              "sources": [
                {
                  "id": "bengrand-oc43-grandyachts-2009",
                  "title": "Grand Yachts: Prime Time, 2009 Beneteau Oceanis 43",
                  "url": "https://www.grandyachts.com/our-inventory/used-boats-for-sale/?boat_id=7624941",
                  "kind": "documented-vessel-example",
                  "locator": "Year; Engine 1: Make & Model, Year and Power",
                  "evidence": "Prime Time is listed as a 2009 Oceanis 43 with a 2009 Yanmar 4JH4E, 54 hp.",
                  "note": "Dataset year: 2009. Prime Time, 2009 Oceanis 43, as documented by Grand Yachts. Installation evidence only; no universal factory-fit claim. Prime Time is listed as a 2009 Oceanis 43 with a 2009 Yanmar 4JH4E, 54 hp."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://irp.cdn-website.com/76471e1f/files/uploaded/4JH4E_%2854hp%29TechData.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 43\" \"2009\" \"4JH\"",
              "\"Oceanis 43\" \"2009\" \"4JH4E\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100343-yanmar-4jh4e-1"
        },
        {
          "name": "Oceanis 45",
          "boatType": "sailing-yacht",
          "yachtModelId": 478262,
          "sourceModelIds": [
            478262,
            490519
          ],
          "sourceModelNames": [
            "Oceanis 45 - 3 cab.",
            "Oceanis 45 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-478262-yanmar-4jh5e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH5E",
              "engineDisplayName": "Yanmar 4JH5E",
              "engineReferenceId": "review_yanmar_4jh5e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2018, 2017, 2016, 2015, 2014, 2013, 2012. De Valk reference 809852 is a 2013 three-cabin boat. This example does not establish all years or the four-cabin source-model variant.",
              "source": {
                "id": "bengrand-oc45-devalk-2013",
                "title": "De Valk: 2013 Beneteau Oceanis 45, reference 809852",
                "url": "https://www.devalk.nl/en/yachtbrokerage/809852/BENETEAU-OCEANIS-45.html",
                "kind": "documented-vessel-example",
                "locator": "Built; Machinery",
                "evidence": "This 2013 three-cabin Oceanis 45 has one Yanmar 4JH5E, 54 hp, with saildrive.",
                "note": "Dataset years: 2018, 2017, 2016, 2015, 2014, 2013, 2012. De Valk reference 809852 is a 2013 three-cabin boat. This example does not establish all years or the four-cabin source-model variant. This 2013 three-cabin Oceanis 45 has one Yanmar 4JH5E, 54 hp, with saildrive."
              },
              "sources": [
                {
                  "id": "bengrand-oc45-devalk-2013",
                  "title": "De Valk: 2013 Beneteau Oceanis 45, reference 809852",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/809852/BENETEAU-OCEANIS-45.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built; Machinery",
                  "evidence": "This 2013 three-cabin Oceanis 45 has one Yanmar 4JH5E, 54 hp, with saildrive.",
                  "note": "Dataset years: 2018, 2017, 2016, 2015, 2014, 2013, 2012. De Valk reference 809852 is a 2013 three-cabin boat. This example does not establish all years or the four-cabin source-model variant. This 2013 three-cabin Oceanis 45 has one Yanmar 4JH5E, 54 hp, with saildrive."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH5E.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 45\" \"4JH5E\" specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-478262-yanmar-4jh5e-1"
        },
        {
          "name": "Oceanis 46",
          "boatType": "sailing-yacht",
          "yachtModelId": 125470,
          "sourceModelIds": [
            125470
          ],
          "sourceModelNames": [
            "Oceanis 46 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-125470-yanmar-4jh4te-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-TE",
              "engineDisplayName": "Yanmar 4JH4-TE",
              "engineReferenceId": "review_yanmar_4jh4te",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2011. Perla Alba, YOTI's 2011 Oceanis 46 example. The source explicitly identifies TE; do not replace it with TCE, 4JH57 or another engine based on horsepower. Not Oceanis 46.1.",
              "source": {
                "id": "bengrand-oc46-yoti-2011",
                "title": "YOTI: Perla Alba, 2011 Beneteau Oceanis 46",
                "url": "https://www.yoti.com.au/?bdbrochure=beneteau-oceanis-46-perla-alba-sold",
                "kind": "documented-vessel-example",
                "locator": "Specifications: Model, Year and Engine Make",
                "evidence": "The original broker's specification identifies Perla Alba as a 2011 Oceanis 46 and explicitly names Yanmar 4JH4-TE.",
                "note": "Dataset year: 2011. Perla Alba, YOTI's 2011 Oceanis 46 example. The source explicitly identifies TE; do not replace it with TCE, 4JH57 or another engine based on horsepower. Not Oceanis 46.1. The original broker's specification identifies Perla Alba as a 2011 Oceanis 46 and explicitly names Yanmar 4JH4-TE."
              },
              "sources": [
                {
                  "id": "bengrand-oc46-yoti-2011",
                  "title": "YOTI: Perla Alba, 2011 Beneteau Oceanis 46",
                  "url": "https://www.yoti.com.au/?bdbrochure=beneteau-oceanis-46-perla-alba-sold",
                  "kind": "documented-vessel-example",
                  "locator": "Specifications: Model, Year and Engine Make",
                  "evidence": "The original broker's specification identifies Perla Alba as a 2011 Oceanis 46 and explicitly names Yanmar 4JH4-TE.",
                  "note": "Dataset year: 2011. Perla Alba, YOTI's 2011 Oceanis 46 example. The source explicitly identifies TE; do not replace it with TCE, 4JH57 or another engine based on horsepower. Not Oceanis 46.1. The original broker's specification identifies Perla Alba as a 2011 Oceanis 46 and explicitly names Yanmar 4JH4-TE."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH4-TE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 46\" \"2011\" \"4JH4\"",
              "\"Oceanis 46\" \"2011\" engine site:devalk.nl"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-125470-yanmar-4jh4te-1"
        },
        {
          "name": "Oceanis 46.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 7820066,
          "sourceModelIds": [
            7820066,
            7889678,
            8036954
          ],
          "sourceModelNames": [
            "Oceanis 46.1",
            "Oceanis 46.1 - 3 cab.",
            "Oceanis 46.1 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-7820066-yanmar-4jh57-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019. Explicit Oceanis 46.1 brochure panel; not the older Oceanis 46. A model-level published configuration does not identify each boat or guarantee unchanged availability across all years.",
              "source": {
                "id": "bengrand-beneteau-yanmar-brochure",
                "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                "note": "Dataset years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019. Explicit Oceanis 46.1 brochure panel; not the older Oceanis 46. A model-level published configuration does not identify each boat or guarantee unchanged availability across all years. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
              },
              "sources": [
                {
                  "id": "bengrand-beneteau-yanmar-brochure",
                  "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                  "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                  "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                  "note": "Dataset years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019. Explicit Oceanis 46.1 brochure panel; not the older Oceanis 46. A model-level published configuration does not identify each boat or guarantee unchanged availability across all years. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-7820066-yanmar-4jh80-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicitly labelled option in the Oceanis 46.1 brochure panel. Engine is 4JH80; SD60 is its drive and is not stored as an engine model.",
              "source": {
                "id": "bengrand-beneteau-yanmar-brochure",
                "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                "note": "Explicitly labelled option in the Oceanis 46.1 brochure panel. Engine is 4JH80; SD60 is its drive and is not stored as an engine model. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
              },
              "sources": [
                {
                  "id": "bengrand-beneteau-yanmar-brochure",
                  "title": "Beneteau x Yanmar original engine/model brochure, Signature Yachts copy",
                  "url": "https://signature-yachts.com/wp-content/uploads/2025/07/BENETEAU-x-YANMAR-Online-Brochure-compressed.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 6-8, YANMAR ENGINES IN BENETEAU BOAT MODELS; individual model panels",
                  "evidence": "Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components.",
                  "note": "Explicitly labelled option in the Oceanis 46.1 brochure panel. Engine is 4JH80; SD60 is its drive and is not stored as an engine model. Panels explicitly pair First 36 with 3YM30AE, Oceanis 34.1 with 3YM20, Oceanis 38.1 with 3YM30AE, Oceanis 40.1 with 4JH45, and Oceanis 46.1 with 4JH57 or optional 4JH80. AE panels specify 3200 rpm. First Yacht 53 is also shown with 4JH80 and an optional 4JH110. Gearbox and saildrive names are separate components."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 13
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 15
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 46.1\" \"4JH57\" \"4JH80\" specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7820066-yanmar-4jh57-1"
        },
        {
          "name": "Oceanis 47",
          "boatType": "sailing-yacht",
          "yachtModelId": 64123960,
          "sourceModelIds": [
            64123960,
            72475776
          ],
          "sourceModelNames": [
            "Oceanis 47 - 4 cab.",
            "Oceanis 47 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-64123960-yanmar-4jh57-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2026. New-generation Oceanis 47 retail list issued in 2025. This is not the older Oceanis 473/Clipper 473 design or a promise about every four- or five-cabin charter boat.",
              "source": {
                "id": "bengrand-oc47-nautivela-price",
                "title": "Beneteau Oceanis 47 retail list, Nautivela copy",
                "url": "https://nautivela.net/wp-content/uploads/2025/07/OCEANIS_47.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, MOTORIZACION; codes 1XA1 and 1XB1",
                "evidence": "The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp.",
                "note": "Dataset year: 2026. New-generation Oceanis 47 retail list issued in 2025. This is not the older Oceanis 473/Clipper 473 design or a promise about every four- or five-cabin charter boat. The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp."
              },
              "sources": [
                {
                  "id": "bengrand-oc47-nautivela-price",
                  "title": "Beneteau Oceanis 47 retail list, Nautivela copy",
                  "url": "https://nautivela.net/wp-content/uploads/2025/07/OCEANIS_47.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, MOTORIZACION; codes 1XA1 and 1XB1",
                  "evidence": "The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp.",
                  "note": "Dataset year: 2026. New-generation Oceanis 47 retail list issued in 2025. This is not the older Oceanis 473/Clipper 473 design or a promise about every four- or five-cabin charter boat. The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-64123960-yanmar-4jh80-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separate larger propulsion version in the same new-generation Oceanis 47 retail list.",
              "source": {
                "id": "bengrand-oc47-nautivela-price",
                "title": "Beneteau Oceanis 47 retail list, Nautivela copy",
                "url": "https://nautivela.net/wp-content/uploads/2025/07/OCEANIS_47.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, MOTORIZACION; codes 1XA1 and 1XB1",
                "evidence": "The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp.",
                "note": "Separate larger propulsion version in the same new-generation Oceanis 47 retail list. The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp."
              },
              "sources": [
                {
                  "id": "bengrand-oc47-nautivela-price",
                  "title": "Beneteau Oceanis 47 retail list, Nautivela copy",
                  "url": "https://nautivela.net/wp-content/uploads/2025/07/OCEANIS_47.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, MOTORIZACION; codes 1XA1 and 1XB1",
                  "evidence": "The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp.",
                  "note": "Separate larger propulsion version in the same new-generation Oceanis 47 retail list. The new Oceanis 47 list explicitly offers Yanmar 4JH57, 42 kW / 57 hp, and Yanmar 4JH80, 59 kW / 80 hp."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 47\" \"4JH57\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-64123960-yanmar-4jh57-1"
        },
        {
          "name": "Oceanis 48",
          "boatType": "sailing-yacht",
          "yachtModelId": 516659,
          "sourceModelIds": [
            516659,
            519533
          ],
          "sourceModelNames": [
            "Oceanis 48 - 4 cab.",
            "Oceanis 48 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-516659-yanmar-4jh4te-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-TE",
              "engineDisplayName": "Yanmar 4JH4-TE",
              "engineReferenceId": "review_yanmar_4jh4te",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2018, 2017, 2016, 2015, 2014. De Valk reference 813081 is built 2015 and described as model year 2016. Its three-cabin installation is not proof for all four-/five-cabin dataset variants or years.",
              "source": {
                "id": "bengrand-oc48-devalk-2015",
                "title": "De Valk: Beneteau Oceanis 48, reference 813081",
                "url": "https://www.devalk.nl/en/yachtbrokerage/813081/BENETEAU-OCEANIS-48.html",
                "kind": "documented-vessel-example",
                "locator": "Built; broker comments; Machinery",
                "evidence": "The broker lists a 2015-built, 2016-model-year Oceanis 48 with one Yanmar 4JH4-TE, 75 hp.",
                "note": "Dataset years: 2018, 2017, 2016, 2015, 2014. De Valk reference 813081 is built 2015 and described as model year 2016. Its three-cabin installation is not proof for all four-/five-cabin dataset variants or years. The broker lists a 2015-built, 2016-model-year Oceanis 48 with one Yanmar 4JH4-TE, 75 hp."
              },
              "sources": [
                {
                  "id": "bengrand-oc48-devalk-2015",
                  "title": "De Valk: Beneteau Oceanis 48, reference 813081",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/813081/BENETEAU-OCEANIS-48.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built; broker comments; Machinery",
                  "evidence": "The broker lists a 2015-built, 2016-model-year Oceanis 48 with one Yanmar 4JH4-TE, 75 hp.",
                  "note": "Dataset years: 2018, 2017, 2016, 2015, 2014. De Valk reference 813081 is built 2015 and described as model year 2016. Its three-cabin installation is not proof for all four-/five-cabin dataset variants or years. The broker lists a 2015-built, 2016-model-year Oceanis 48 with one Yanmar 4JH4-TE, 75 hp."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH4-TE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 48\" engine site:devalk.nl",
              "\"Oceanis 48\" \"4JH\" site:devalk.nl"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-516659-yanmar-4jh4te-1"
        },
        {
          "name": "Oceanis 50 Family",
          "boatType": "sailing-yacht",
          "yachtModelId": 104209,
          "sourceModelIds": [
            104209,
            10396734
          ],
          "sourceModelNames": [
            "Oceanis 50 Family - 5 + 1 cab.",
            "Oceanis 50 Family - 6 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-104209-yanmar-4jh4tce-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4TCE",
              "engineDisplayName": "Yanmar 4JH4TCE",
              "engineReferenceId": "review_yanmar_4jh4tce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2012. MACARMI is explicitly a 2011 Oceanis 50 Family G5, not the earlier Beneteau 50. This adjacent-year vessel is an observed installation only and does not confirm either 2012 cabin variant. Exact source spelling 4JH4TCE is retained; SD is excluded as drive terminology. Other reviewed Family material gave 110 hp without an exact engine identity and is not guessed.",
              "source": {
                "id": "bengrand-oc50family-castaner-2011",
                "title": "I. Castaner Yachts: Oceanis 50 Family MACARMI, reference 15347",
                "url": "https://castaner-yachts.com/wp-content/uploads/2026/02/ICY-REF-15347-Beneteau-Oceanis-50-Family.pdf",
                "kind": "documented-vessel-example",
                "locator": "PDF page 1: Model and Year; page 2: ENGINES",
                "evidence": "MACARMI is expressly a 2011 Oceanis 50 Family G5. Its engine is printed as Yanmar 4JH4TCE SD, 75 hp; SD describes the drive.",
                "note": "Dataset year: 2012. MACARMI is explicitly a 2011 Oceanis 50 Family G5, not the earlier Beneteau 50. This adjacent-year vessel is an observed installation only and does not confirm either 2012 cabin variant. Exact source spelling 4JH4TCE is retained; SD is excluded as drive terminology. Other reviewed Family material gave 110 hp without an exact engine identity and is not guessed. MACARMI is expressly a 2011 Oceanis 50 Family G5. Its engine is printed as Yanmar 4JH4TCE SD, 75 hp; SD describes the drive."
              },
              "sources": [
                {
                  "id": "bengrand-oc50family-castaner-2011",
                  "title": "I. Castaner Yachts: Oceanis 50 Family MACARMI, reference 15347",
                  "url": "https://castaner-yachts.com/wp-content/uploads/2026/02/ICY-REF-15347-Beneteau-Oceanis-50-Family.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "PDF page 1: Model and Year; page 2: ENGINES",
                  "evidence": "MACARMI is expressly a 2011 Oceanis 50 Family G5. Its engine is printed as Yanmar 4JH4TCE SD, 75 hp; SD describes the drive.",
                  "note": "Dataset year: 2012. MACARMI is explicitly a 2011 Oceanis 50 Family G5, not the earlier Beneteau 50. This adjacent-year vessel is an observed installation only and does not confirm either 2012 cabin variant. Exact source spelling 4JH4TCE is retained; SD is excluded as drive terminology. Other reviewed Family material gave 110 hp without an exact engine identity and is not guessed. MACARMI is expressly a 2011 Oceanis 50 Family G5. Its engine is printed as Yanmar 4JH4TCE SD, 75 hp; SD describes the drive."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 50 Family\" \"4JH\" specification",
              "\"Oceanis 50 Family\" \"engine\" Yanmar",
              "\"Oceanis 50 Family\" \"2012\" \"4JH4\"",
              "\"Oceanis 50 Family\" \"2012\" \"4JH4-HTE\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-104209-yanmar-4jh4tce-1"
        },
        {
          "name": "Oceanis 51.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 3734661,
          "sourceModelIds": [
            3734661,
            4378681,
            23161564
          ],
          "sourceModelNames": [
            "Oceanis 51.1",
            "Oceanis 51.1 - 5 + 1 cab.",
            "Oceanis 51.1 OW - 3 cab"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-3734661-yanmar-4jh80-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2025, 2024, 2022, 2020, 2019, 2018. The B2025 list explicitly names the engine for Oceanis 51.1; earlier years and each owner/charter layout require individual verification.",
              "source": {
                "id": "bengrand-oc511-2025-price",
                "title": "Beneteau Oceanis 51.1 price list B2025, Kiriacoulis copy",
                "url": "https://www.kiriacoulis.com/sales/BeneteauOceanis51.1_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION; codes 1XB1 and 1XC0",
                "evidence": "The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp.",
                "note": "Dataset years: 2025, 2024, 2022, 2020, 2019, 2018. The B2025 list explicitly names the engine for Oceanis 51.1; earlier years and each owner/charter layout require individual verification. The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp."
              },
              "sources": [
                {
                  "id": "bengrand-oc511-2025-price",
                  "title": "Beneteau Oceanis 51.1 price list B2025, Kiriacoulis copy",
                  "url": "https://www.kiriacoulis.com/sales/BeneteauOceanis51.1_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION; codes 1XB1 and 1XC0",
                  "evidence": "The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp.",
                  "note": "Dataset years: 2025, 2024, 2022, 2020, 2019, 2018. The B2025 list explicitly names the engine for Oceanis 51.1; earlier years and each owner/charter layout require individual verification. The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-3734661-yanmar-4jh110-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separate propulsion version in the January 2025 list; not proof of the 110 hp option in every dataset year. No curve is inferred for this larger engine.",
              "source": {
                "id": "bengrand-oc511-2025-price",
                "title": "Beneteau Oceanis 51.1 price list B2025, Kiriacoulis copy",
                "url": "https://www.kiriacoulis.com/sales/BeneteauOceanis51.1_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION; codes 1XB1 and 1XC0",
                "evidence": "The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp.",
                "note": "Separate propulsion version in the January 2025 list; not proof of the 110 hp option in every dataset year. No curve is inferred for this larger engine. The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp."
              },
              "sources": [
                {
                  "id": "bengrand-oc511-2025-price",
                  "title": "Beneteau Oceanis 51.1 price list B2025, Kiriacoulis copy",
                  "url": "https://www.kiriacoulis.com/sales/BeneteauOceanis51.1_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION; codes 1XB1 and 1XC0",
                  "evidence": "The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp.",
                  "note": "Separate propulsion version in the January 2025 list; not proof of the 110 hp option in every dataset year. No curve is inferred for this larger engine. The January 2025 list names Yanmar 4JH80 CR SD, 59 kW / 80 hp, and Yanmar 4JH110 CR, 81 kW / 110 hp."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 51.1\" \"4JH80\" brochure"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-3734661-yanmar-4jh80-1"
        },
        {
          "name": "Oceanis 52",
          "boatType": "sailing-yacht",
          "yachtModelId": 69291510,
          "sourceModelIds": [
            69291510,
            71108744
          ],
          "sourceModelNames": [
            "Oceanis 52 - 3 cab.",
            "Oceanis 52 - 6 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-69291510-yanmar-4jh110-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2026. New Oceanis 52, not Oceanis 523 or an older 52-foot design. Both dealer sources publish 4JH110 CR. CR is retained here as an explicit common-rail technology annotation, not an additional model suffix: Yanmar's own model heading is 4JH110 and its combustion system is separately specified as common rail. Sport Nautic's 2026 engine field corroborates the now-unavailable Guasch offer; neither proves the engine in every dataset cabin layout.",
              "source": {
                "id": "bengrand-oc52-guasch-2026",
                "title": "Hermanos Guasch: Beneteau Oceanis 52, new 2026",
                "url": "https://hermanosguasch.com/es/ofertas/beneteau-oceanis-52-new-2026",
                "kind": "authorized-dealer-specification",
                "locator": "Search-indexed Modelo motor and model introduction/delivery description; page returned 404 on second-pass recheck",
                "evidence": "The indexed dealer offer explicitly names Yanmar 4JH110 CR for the new 2026 Oceanis 52. The page returned 404 on recheck; the separate Sport Nautic stock listing corroborates the exact published designation.",
                "note": "Dataset year: 2026. New Oceanis 52, not Oceanis 523 or an older 52-foot design. Both dealer sources publish 4JH110 CR. CR is retained here as an explicit common-rail technology annotation, not an additional model suffix: Yanmar's own model heading is 4JH110 and its combustion system is separately specified as common rail. Sport Nautic's 2026 engine field corroborates the now-unavailable Guasch offer; neither proves the engine in every dataset cabin layout. The indexed dealer offer explicitly names Yanmar 4JH110 CR for the new 2026 Oceanis 52. The page returned 404 on recheck; the separate Sport Nautic stock listing corroborates the exact published designation."
              },
              "sources": [
                {
                  "id": "bengrand-oc52-guasch-2026",
                  "title": "Hermanos Guasch: Beneteau Oceanis 52, new 2026",
                  "url": "https://hermanosguasch.com/es/ofertas/beneteau-oceanis-52-new-2026",
                  "kind": "authorized-dealer-specification",
                  "locator": "Search-indexed Modelo motor and model introduction/delivery description; page returned 404 on second-pass recheck",
                  "evidence": "The indexed dealer offer explicitly names Yanmar 4JH110 CR for the new 2026 Oceanis 52. The page returned 404 on recheck; the separate Sport Nautic stock listing corroborates the exact published designation.",
                  "note": "Dataset year: 2026. New Oceanis 52, not Oceanis 523 or an older 52-foot design. Both dealer sources publish 4JH110 CR. CR is retained here as an explicit common-rail technology annotation, not an additional model suffix: Yanmar's own model heading is 4JH110 and its combustion system is separately specified as common rail. Sport Nautic's 2026 engine field corroborates the now-unavailable Guasch offer; neither proves the engine in every dataset cabin layout. The indexed dealer offer explicitly names Yanmar 4JH110 CR for the new 2026 Oceanis 52. The page returned 404 on recheck; the separate Sport Nautic stock listing corroborates the exact published designation."
                },
                {
                  "id": "bengrand-oc52-sportnautic-2026",
                  "title": "Sport Nautic: Oceanis 52 STOCK, 2026",
                  "url": "https://sportnautic.com/embarcacion/oceanis-52-stock/",
                  "kind": "authorized-dealer-specification",
                  "locator": "Ano 2026; Motor / Marca and Modelo; Motorizacion y sistemas",
                  "evidence": "The dealer's own 2026 stock page explicitly prints Yanmar 4JH110 CR in the engine model field and describes the 110 hp saildrive installation. Its inconsistent cabin counts are not used as evidence for any specific layout.",
                  "note": "Dataset year: 2026. New Oceanis 52, not Oceanis 523 or an older 52-foot design. Both dealer sources publish 4JH110 CR. CR is retained here as an explicit common-rail technology annotation, not an additional model suffix: Yanmar's own model heading is 4JH110 and its combustion system is separately specified as common rail. Sport Nautic's 2026 engine field corroborates the now-unavailable Guasch offer; neither proves the engine in every dataset cabin layout. The dealer's own 2026 stock page explicitly prints Yanmar 4JH110 CR in the engine model field and describes the 110 hp saildrive installation. Its inconsistent cabin counts are not used as evidence for any specific layout."
                },
                {
                  "id": "bengrand-yanmar-4jh110-identity",
                  "title": "Yanmar Marine International: 4JH110 official specification",
                  "url": "https://www.yanmar.com/marine/product/engines/4jh110/",
                  "kind": "manufacturer-specification",
                  "locator": "Page/model heading 4JH110; Specifications / Combustion system; JH-CR operation-manual model list",
                  "evidence": "Yanmar names the engine model 4JH110 and separately describes its Bosch common-rail combustion system. This supports treating CR as a technology annotation rather than an additional engine-model suffix; it does not itself prove installation in any boat.",
                  "note": "Dataset year: 2026. New Oceanis 52, not Oceanis 523 or an older 52-foot design. Both dealer sources publish 4JH110 CR. CR is retained here as an explicit common-rail technology annotation, not an additional model suffix: Yanmar's own model heading is 4JH110 and its combustion system is separately specified as common rail. Sport Nautic's 2026 engine field corroborates the now-unavailable Guasch offer; neither proves the engine in every dataset cabin layout. Yanmar names the engine model 4JH110 and separately describes its Bosch common-rail combustion system. This supports treating CR as a technology annotation rather than an additional engine-model suffix; it does not itself prove installation in any boat."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 52\" \"4JH110\"",
              "site:yanmar.com/marine \"4JH110\" \"common rail\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-69291510-yanmar-4jh110-1"
        },
        {
          "name": "Oceanis 54",
          "boatType": "sailing-yacht",
          "yachtModelId": 23337163,
          "sourceModelIds": [
            23337163
          ],
          "sourceModelNames": [
            "Oceanis 54 - 3 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-23337163-yanmar-4jh110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2024, 2023, 2022. Abayachting explicitly lists a 2023-built Oceanis 54 with three cabins plus crew and this engine. Applies to the modern 54 example only; not the older late-2000s Oceanis 54. Full PDF retrieval failed, so support is limited to the original broker's search-indexed particulars.",
              "source": {
                "id": "bengrand-oc54-abayachting-2023",
                "title": "Abayachting: Beneteau Oceanis 54, 2023 vessel specification",
                "url": "https://www.abayachting.com/en/pdf/Beneteau-Oceanis-54-usata-2023/n97eIB1yIU2AmvxtTC4EvQ/v/bim/1",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed PDF particulars: Hull Year Built, Year Registration, Engine and description",
                "evidence": "The original broker's specification explicitly pairs a 2023-built Oceanis 54, three cabins and three bathrooms plus crew cabin, with Yanmar 4JH110. The full PDF fetch failed; the engine/year passage was available in the search index.",
                "note": "Dataset years: 2024, 2023, 2022. Abayachting explicitly lists a 2023-built Oceanis 54 with three cabins plus crew and this engine. Applies to the modern 54 example only; not the older late-2000s Oceanis 54. Full PDF retrieval failed, so support is limited to the original broker's search-indexed particulars. The original broker's specification explicitly pairs a 2023-built Oceanis 54, three cabins and three bathrooms plus crew cabin, with Yanmar 4JH110. The full PDF fetch failed; the engine/year passage was available in the search index."
              },
              "sources": [
                {
                  "id": "bengrand-oc54-abayachting-2023",
                  "title": "Abayachting: Beneteau Oceanis 54, 2023 vessel specification",
                  "url": "https://www.abayachting.com/en/pdf/Beneteau-Oceanis-54-usata-2023/n97eIB1yIU2AmvxtTC4EvQ/v/bim/1",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed PDF particulars: Hull Year Built, Year Registration, Engine and description",
                  "evidence": "The original broker's specification explicitly pairs a 2023-built Oceanis 54, three cabins and three bathrooms plus crew cabin, with Yanmar 4JH110. The full PDF fetch failed; the engine/year passage was available in the search index.",
                  "note": "Dataset years: 2024, 2023, 2022. Abayachting explicitly lists a 2023-built Oceanis 54 with three cabins plus crew and this engine. Applies to the modern 54 example only; not the older late-2000s Oceanis 54. Full PDF retrieval failed, so support is limited to the original broker's search-indexed particulars. The original broker's specification explicitly pairs a 2023-built Oceanis 54, three cabins and three bathrooms plus crew cabin, with Yanmar 4JH110. The full PDF fetch failed; the engine/year passage was available in the search index."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 54\" \"2022\" \"engine model\"",
              "\"Oceanis 54\" \"4JH110\" \"2023\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23337163-yanmar-4jh110-1"
        },
        {
          "name": "Oceanis 55",
          "boatType": "sailing-yacht",
          "yachtModelId": 967776,
          "sourceModelIds": [
            967776
          ],
          "sourceModelNames": [
            "Oceanis 55 - 4 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-967776-yanmar-4jh110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2017. DARKSYDE is a 2017-built, 2018-model Oceanis 55, three-cabin owner's version, as documented by its selling broker. Not proof of the dataset's four-plus-one-cabin boat or every Oceanis 55.",
              "source": {
                "id": "bengrand-oc55-grabau-darksyde",
                "title": "Grabau International: DARKSYDE, 2017-built / 2018-model Oceanis 55, seller listing",
                "url": "https://www.yachtworld.co.uk/yacht/2017-beneteau-oceanis-55-10331268/",
                "kind": "documented-vessel-example",
                "locator": "Seller description; Full Sales Inventory / MACHINERY / Engine & gearbox",
                "evidence": "The original selling broker explicitly lists DARKSYDE with a Yanmar 4JH110, producing 110 hp at 3200 rpm. The listing distinguishes 2017 build from 2018 model year.",
                "note": "Dataset year: 2017. DARKSYDE is a 2017-built, 2018-model Oceanis 55, three-cabin owner's version, as documented by its selling broker. Not proof of the dataset's four-plus-one-cabin boat or every Oceanis 55. The original selling broker explicitly lists DARKSYDE with a Yanmar 4JH110, producing 110 hp at 3200 rpm. The listing distinguishes 2017 build from 2018 model year."
              },
              "sources": [
                {
                  "id": "bengrand-oc55-grabau-darksyde",
                  "title": "Grabau International: DARKSYDE, 2017-built / 2018-model Oceanis 55, seller listing",
                  "url": "https://www.yachtworld.co.uk/yacht/2017-beneteau-oceanis-55-10331268/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller description; Full Sales Inventory / MACHINERY / Engine & gearbox",
                  "evidence": "The original selling broker explicitly lists DARKSYDE with a Yanmar 4JH110, producing 110 hp at 3200 rpm. The listing distinguishes 2017 build from 2018 model year.",
                  "note": "Dataset year: 2017. DARKSYDE is a 2017-built, 2018-model Oceanis 55, three-cabin owner's version, as documented by its selling broker. Not proof of the dataset's four-plus-one-cabin boat or every Oceanis 55. The original selling broker explicitly lists DARKSYDE with a Yanmar 4JH110, producing 110 hp at 3200 rpm. The listing distinguishes 2017 build from 2018 model year."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 55\" \"2017\" Yanmar engine broker",
              "\"Oceanis 55\" \"2017\" \"4JH110\" broker",
              "\"Oceanis 55\" \"Darksyde\" \"Grabau\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-967776-yanmar-4jh110-1"
        },
        {
          "name": "Oceanis 60",
          "boatType": "sailing-yacht",
          "yachtModelId": 1079295,
          "sourceModelIds": [
            1079295,
            11404206
          ],
          "sourceModelNames": [
            "Oceanis 60 - 3 + 1 cab.",
            "Oceanis 60 - 4 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1079295-volkswagen-1405-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volkswagen",
              "engineModel": "140-5",
              "engineDisplayName": "Volkswagen TDI 140-5",
              "engineReferenceId": "review_vw_tdi1405bw",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2025, 2024, 2015. Evidence covers De Valk's 2015 18.24 m Oceanis 60 only. It does not resolve whether the 2024/2025 dataset entries are the same design or the newer Oceanis Yacht 60. Do not attach this engine to those later entries without hull/generation confirmation; a shared number 60 is not evidence.",
              "source": {
                "id": "bengrand-oc60-devalk-2015",
                "title": "De Valk: 2015 Beneteau Oceanis 60, reference 811385",
                "url": "https://www.devalk.nl/en/yachtbrokerage/811385/BENETEAU-OCEANIS-60.html",
                "kind": "documented-vessel-example",
                "locator": "Built; Engine(s); Machinery",
                "evidence": "This 2015 Oceanis 60, length 18.24 m, has one Volkswagen 140-5 diesel, 140 hp. This is not evidence for the newer Oceanis Yacht 60 design.",
                "note": "Dataset years: 2025, 2024, 2015. Evidence covers De Valk's 2015 18.24 m Oceanis 60 only. It does not resolve whether the 2024/2025 dataset entries are the same design or the newer Oceanis Yacht 60. Do not attach this engine to those later entries without hull/generation confirmation; a shared number 60 is not evidence. This 2015 Oceanis 60, length 18.24 m, has one Volkswagen 140-5 diesel, 140 hp. This is not evidence for the newer Oceanis Yacht 60 design."
              },
              "sources": [
                {
                  "id": "bengrand-oc60-devalk-2015",
                  "title": "De Valk: 2015 Beneteau Oceanis 60, reference 811385",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/811385/BENETEAU-OCEANIS-60.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built; Engine(s); Machinery",
                  "evidence": "This 2015 Oceanis 60, length 18.24 m, has one Volkswagen 140-5 diesel, 140 hp. This is not evidence for the newer Oceanis Yacht 60 design.",
                  "note": "Dataset years: 2025, 2024, 2015. Evidence covers De Valk's 2015 18.24 m Oceanis 60 only. It does not resolve whether the 2024/2025 dataset entries are the same design or the newer Oceanis Yacht 60. Do not attach this engine to those later entries without hull/generation confirmation; a shared number 60 is not evidence. This 2015 Oceanis 60, length 18.24 m, has one Volkswagen 140-5 diesel, 140 hp. This is not evidence for the newer Oceanis Yacht 60 design."
                }
              ],
              "engineFamilyReference": {
                "family": "TDI 140-5",
                "reportedModel": "140-5",
                "referenceModel": "TDI 140-5 BW",
                "referenceId": "review_vw_tdi1405bw",
                "basis": "reviewed-base-engine-family",
                "note": "Base-engine family reference: Volkswagen TDI 140-5, represented by the documented BW variant's 103 kW at 3500 RPM. This does not establish the BW suffix as fitted. The original 2015 Oceanis 60 applicability remains unchanged; no assignment is extended to newer-generation 2024/2025 entries. Fuel values are calculated planning estimates, not a published numeric fuel curve or boat measurements.",
                "sources": [
                  {
                    "title": "Volkswagen Marine, Engines for Blue Water Craft, BlueWater_e_09.qxd, November 2009",
                    "url": "https://expydoc.com/doc/3339812/engines-for-blue-water-craft",
                    "kind": "manufacturer-document",
                    "locator": "Printed page 2, TDI 140-5 BW model panel; printed page 5, Specifications, TDI 140-5 BW column; transcript lines 81-136 and 199-274.",
                    "evidence": "The named BW variant pairs 103 kW / 140 hp with 3500 RPM, also repeated in the ISO 3046 specification table. Minimum specific fuel consumption is 203 g/kWh, without its RPM/load. The brochure describes BW-specific electronic mapping. No numeric RPM/L/h table or rated-power L/h endpoint was found in this transcript.",
                    "access": "Manufacturer-authored brochure read through a public third-party transcript on 2026-10-17, not a current manufacturer-hosted PDF. The download link returned 403 Forbidden. Text transcription and original-page image fidelity could not be independently compared. No values were read from plotted curves."
                  }
                ]
              },
              "selectionPower": {
                "kw": 102.969825,
                "sources": [
                  "https://www.devalk.nl/en/yachtbrokerage/811385/BENETEAU-OCEANIS-60.html"
                ],
                "basis": "documented-engine-rating",
                "approximate": false,
                "totalKw": 102.969825
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis 60\" \"2015\" Yanmar model",
              "\"Oceanis 60\" \"2015\" \"4LHA\"",
              "\"Oceanis 60\" \"2015\" \"engine\" site:devalk.nl"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1079295-volkswagen-1405-1"
        },
        {
          "name": "Oceanis Clipper 323",
          "boatType": "sailing-yacht",
          "yachtModelId": 100306,
          "sourceModelIds": [
            100306
          ],
          "sourceModelNames": [
            "Oceanis Clipper 323"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100306-yanmar-3gm30f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3GM30F",
              "engineDisplayName": "Yanmar 3GM30F",
              "engineReferenceId": "review_yanmar_3gm30f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2004. BJ Marine's individual 2004 lifting-keel Clipper 323. The seller prints 3gm30f; only case is normalized. No claim that all 2004 boats have this rather than another installation.",
              "source": {
                "id": "bengrand-clip323-bjmarine-2004",
                "title": "BJ Marine Pwllheli: 2004 Oceanis Clipper 323, seller listing",
                "url": "https://www.yachtworld.it/yacht/2004-beneteau-oceanis-clipper-323-10178277/",
                "kind": "documented-vessel-example",
                "locator": "Seller description; Propulsione",
                "evidence": "BJ Marine's 2004 lifting-keel Oceanis Clipper 323 has a Yanmar 3gm30f, engine year 2004, 29 hp. Letter case is normalized to 3GM30F.",
                "note": "Dataset year: 2004. BJ Marine's individual 2004 lifting-keel Clipper 323. The seller prints 3gm30f; only case is normalized. No claim that all 2004 boats have this rather than another installation. BJ Marine's 2004 lifting-keel Oceanis Clipper 323 has a Yanmar 3gm30f, engine year 2004, 29 hp. Letter case is normalized to 3GM30F."
              },
              "sources": [
                {
                  "id": "bengrand-clip323-bjmarine-2004",
                  "title": "BJ Marine Pwllheli: 2004 Oceanis Clipper 323, seller listing",
                  "url": "https://www.yachtworld.it/yacht/2004-beneteau-oceanis-clipper-323-10178277/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller description; Propulsione",
                  "evidence": "BJ Marine's 2004 lifting-keel Oceanis Clipper 323 has a Yanmar 3gm30f, engine year 2004, 29 hp. Letter case is normalized to 3GM30F.",
                  "note": "Dataset year: 2004. BJ Marine's individual 2004 lifting-keel Clipper 323. The seller prints 3gm30f; only case is normalized. No claim that all 2004 boats have this rather than another installation. BJ Marine's 2004 lifting-keel Oceanis Clipper 323 has a Yanmar 3gm30f, engine year 2004, 29 hp. Letter case is normalized to 3GM30F."
                }
              ],
              "selectionPower": {
                "kw": 20.1,
                "sources": [
                  "https://manuals.plus/m/4aa6cf1f22f7758b5ff0ed1abdef8b474eda37ff2418c0974ce53adbeab3eab5.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2004",
              "label": "2004 build",
              "year": 2004,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis Clipper 323\" engine MD2020",
              "\"Oceanis Clipper 323\" \"2004\" \"engine\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100306-yanmar-3gm30f-1"
        },
        {
          "name": "Oceanis Clipper 411",
          "boatType": "sailing-yacht",
          "yachtModelId": 151,
          "sourceModelIds": [
            151
          ],
          "sourceModelNames": [
            "Oceanis Clipper 411 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-151-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset year: 2003. Boatshed Portsmouth reference 246542, a 2003 Oceanis 411 Clipper with shaft drive. Vessel example only, not proof of the dataset's four-cabin charter boat. A separate Clipper listing printed only the incomplete Yanmar family name 4JH3; no suffix was invented.",
              "source": {
                "id": "bengrand-clip411-boatshed-2003",
                "title": "Boatshed Portsmouth: 2003 Beneteau Oceanis 411 Clipper, reference 246542",
                "url": "https://norfolk.boatshed.com/beneteau_oceanis_411-boat-246542.html",
                "kind": "documented-vessel-example",
                "locator": "Main particulars; Mechanical / Engine make and model",
                "evidence": "The broker's archived 2003 Clipper example explicitly has one Volvo D2-55 four-cylinder diesel, 55 hp, with a straight shaft.",
                "note": "Dataset year: 2003. Boatshed Portsmouth reference 246542, a 2003 Oceanis 411 Clipper with shaft drive. Vessel example only, not proof of the dataset's four-cabin charter boat. A separate Clipper listing printed only the incomplete Yanmar family name 4JH3; no suffix was invented. The broker's archived 2003 Clipper example explicitly has one Volvo D2-55 four-cylinder diesel, 55 hp, with a straight shaft."
              },
              "sources": [
                {
                  "id": "bengrand-clip411-boatshed-2003",
                  "title": "Boatshed Portsmouth: 2003 Beneteau Oceanis 411 Clipper, reference 246542",
                  "url": "https://norfolk.boatshed.com/beneteau_oceanis_411-boat-246542.html",
                  "kind": "documented-vessel-example",
                  "locator": "Main particulars; Mechanical / Engine make and model",
                  "evidence": "The broker's archived 2003 Clipper example explicitly has one Volvo D2-55 four-cylinder diesel, 55 hp, with a straight shaft.",
                  "note": "Dataset year: 2003. Boatshed Portsmouth reference 246542, a 2003 Oceanis 411 Clipper with shaft drive. Vessel example only, not proof of the dataset's four-cabin charter boat. A separate Clipper listing printed only the incomplete Yanmar family name 4JH3; no suffix was invented. The broker's archived 2003 Clipper example explicitly has one Volvo D2-55 four-cylinder diesel, 55 hp, with a straight shaft."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2003",
              "label": "2003 build",
              "year": 2003,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis Clipper 411\" \"2003\" engine",
              "\"Oceanis Clipper 411\" \"2003\" \"engine\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-151-volvopenta-d255-1"
        },
        {
          "name": "Oceanis Yacht 62",
          "boatType": "sailing-yacht",
          "yachtModelId": 2840387,
          "sourceModelIds": [
            2840387
          ],
          "sourceModelNames": [
            "Oceanis Yacht 62 - 3 + 1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-2840387-yanmar-6by3160-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "6BY3-160",
              "engineDisplayName": "Yanmar 6BY3-160",
              "engineReferenceId": "review_yanmar_6by3160",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dataset years: 2022, 2017. Azul reference 2085 documents a 2018 Oceanis Yacht 62, not either dataset boat. Exact 6BY3-160 is preserved. Later 2022 broker material supplied only 4LV plus power, so a 4LV suffix was not inferred and the 2022 entry remains individually unverified.",
              "source": {
                "id": "bengrand-oy62-azul-2018",
                "title": "Azul Yachts: Oceanis Yacht 62, 2018, Odoo reference 2085",
                "url": "https://www.azulyachts.com/en/my/products/2085/ficha_en",
                "kind": "documented-vessel-example",
                "locator": "PDF page 1, FEATURES / Year and Engine type",
                "evidence": "The dealer's own specification explicitly lists a 2018 Oceanis Yacht 62 and Yanmar 6BY3-160, 160 hp.",
                "note": "Dataset years: 2022, 2017. Azul reference 2085 documents a 2018 Oceanis Yacht 62, not either dataset boat. Exact 6BY3-160 is preserved. Later 2022 broker material supplied only 4LV plus power, so a 4LV suffix was not inferred and the 2022 entry remains individually unverified. The dealer's own specification explicitly lists a 2018 Oceanis Yacht 62 and Yanmar 6BY3-160, 160 hp."
              },
              "sources": [
                {
                  "id": "bengrand-oy62-azul-2018",
                  "title": "Azul Yachts: Oceanis Yacht 62, 2018, Odoo reference 2085",
                  "url": "https://www.azulyachts.com/en/my/products/2085/ficha_en",
                  "kind": "documented-vessel-example",
                  "locator": "PDF page 1, FEATURES / Year and Engine type",
                  "evidence": "The dealer's own specification explicitly lists a 2018 Oceanis Yacht 62 and Yanmar 6BY3-160, 160 hp.",
                  "note": "Dataset years: 2022, 2017. Azul reference 2085 documents a 2018 Oceanis Yacht 62, not either dataset boat. Exact 6BY3-160 is preserved. Later 2022 broker material supplied only 4LV plus power, so a 4LV suffix was not inferred and the 2022 entry remains individually unverified. The dealer's own specification explicitly lists a 2018 Oceanis Yacht 62 and Yanmar 6BY3-160, 160 hp."
                }
              ],
              "selectionPower": {
                "kw": 117,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-6BY3-160-Datasheet.pdf",
                  "https://www.yanmar.com/marine/product/engines/6by3-160/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Oceanis Yacht 62\" \"engine model\"",
              "\"Oceanis Yacht 62\" \"6BY3-160\"",
              "\"Oceanis Yacht 62\" \"2017\" \"6BY3-160\"",
              "\"Oceanis Yacht 62\" \"6BY3-160\" \"Beneteau\" brochure pdf"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-2840387-yanmar-6by3160-1"
        }
      ]
    },
    {
      "name": "Dufour",
      "models": [
        {
          "name": "Dufour 37",
          "boatType": "sailing-yacht",
          "yachtModelId": 33086735,
          "sourceModelIds": [
            33086735
          ],
          "sourceModelNames": [
            "Dufour 37 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-33086735-volvopenta-d120-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Current Dufour 37 dealer specification; catalogue coverage is 2024. The cited edition is not proof of the engine on either individual catalogue yacht or of all factory options.",
              "source": {
                "id": "de-dufour37",
                "title": "Angelina Yachting: Dufour 37 model specification",
                "url": "https://angelina-yachting.eu/model-dufour-37.html",
                "kind": "authorized-dealer-specification",
                "locator": "Search-indexed model specification passage",
                "evidence": "The dealer explicitly names the Volvo Penta D1-20 engine for the Dufour 37, with a 140 L fuel capacity.",
                "note": "Current Dufour 37 dealer specification; catalogue coverage is 2024. The cited edition is not proof of the engine on either individual catalogue yacht or of all factory options. The dealer explicitly names the Volvo Penta D1-20 engine for the Dufour 37, with a 140 L fuel capacity."
              },
              "sources": [
                {
                  "id": "de-dufour37",
                  "title": "Angelina Yachting: Dufour 37 model specification",
                  "url": "https://angelina-yachting.eu/model-dufour-37.html",
                  "kind": "authorized-dealer-specification",
                  "locator": "Search-indexed model specification passage",
                  "evidence": "The dealer explicitly names the Volvo Penta D1-20 engine for the Dufour 37, with a 140 L fuel capacity.",
                  "note": "Current Dufour 37 dealer specification; catalogue coverage is 2024. The cited edition is not proof of the engine on either individual catalogue yacht or of all factory options. The dealer explicitly names the Volvo Penta D1-20 engine for the Dufour 37, with a 140 L fuel capacity."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Dufour 37 engine D1-30 D1-20 specifications"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-33086735-volvopenta-d120-1"
        },
        {
          "name": "Dufour 41",
          "boatType": "sailing-yacht",
          "yachtModelId": 34313410,
          "sourceModelIds": [
            34313410,
            35572617
          ],
          "sourceModelNames": [
            "Dufour 41 - 3 cab.",
            "Dufour 41 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-34313410-volvopenta-d260-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60",
              "engineDisplayName": "Volvo Penta D2-60",
              "engineReferenceId": "volvo_d2_60",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "ACY Yachts' 2024 Marina del Rey example only. Catalogue covers 2023 and 2024; this is not the older Dufour 41 Classic and is not a universal standard-engine claim.",
              "source": {
                "id": "de-dufour41",
                "title": "ACY Yachts: 2024 Dufour 41, Marina del Rey",
                "url": "https://www.boattrader.com/boat/2024-dufour-41-10109132//",
                "kind": "documented-vessel-example",
                "locator": "Seller ACY Yachts - Marina Del Rey; Propulsion",
                "evidence": "The broker's 2024 Dufour 41 listing specifies a single Volvo Penta D2-60 diesel, 60 hp, engine year 2024.",
                "note": "ACY Yachts' 2024 Marina del Rey example only. Catalogue covers 2023 and 2024; this is not the older Dufour 41 Classic and is not a universal standard-engine claim. The broker's 2024 Dufour 41 listing specifies a single Volvo Penta D2-60 diesel, 60 hp, engine year 2024."
              },
              "sources": [
                {
                  "id": "de-dufour41",
                  "title": "ACY Yachts: 2024 Dufour 41, Marina del Rey",
                  "url": "https://www.boattrader.com/boat/2024-dufour-41-10109132//",
                  "kind": "documented-vessel-example",
                  "locator": "Seller ACY Yachts - Marina Del Rey; Propulsion",
                  "evidence": "The broker's 2024 Dufour 41 listing specifies a single Volvo Penta D2-60 diesel, 60 hp, engine year 2024.",
                  "note": "ACY Yachts' 2024 Marina del Rey example only. Catalogue covers 2023 and 2024; this is not the older Dufour 41 Classic and is not a universal standard-engine claim. The broker's 2024 Dufour 41 listing specifies a single Volvo Penta D2-60 diesel, 60 hp, engine year 2024."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 44
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Dufour 41 engine D2-50 specifications",
              "\"Dufour 41\" \"engine\" \"4JH\" 2024",
              "\"Dufour 41\" \"2024\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-34313410-volvopenta-d260-1"
        },
        {
          "name": "Dufour 44",
          "boatType": "sailing-yacht",
          "yachtModelId": 39893520,
          "sourceModelIds": [
            39893520,
            40842436
          ],
          "sourceModelNames": [
            "Dufour 44 - 3 cab.",
            "Dufour 44 - 4 cab"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-39893520-volvopenta-d260-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60",
              "engineDisplayName": "Volvo Penta D2-60",
              "engineReferenceId": "volvo_d2_60",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Euro Sail Yacht's November 2024 new-generation Dufour 44 offer. Catalogue covers 2024/2025. Not applicable to the separate 2004 catalogue entry.",
              "source": {
                "id": "de-dufour44new",
                "title": "Euro Sail Yacht: Dufour 44, November 2024 offer",
                "url": "https://www.eurosailyacht.com/en/latest-offers/267/44-novembre-2024",
                "kind": "documented-vessel-example",
                "locator": "Main profile",
                "evidence": "The new-generation Dufour 44 offer explicitly lists engine Volvo Penta D2-60, with three cabins and two bathrooms.",
                "note": "Euro Sail Yacht's November 2024 new-generation Dufour 44 offer. Catalogue covers 2024/2025. Not applicable to the separate 2004 catalogue entry. The new-generation Dufour 44 offer explicitly lists engine Volvo Penta D2-60, with three cabins and two bathrooms."
              },
              "sources": [
                {
                  "id": "de-dufour44new",
                  "title": "Euro Sail Yacht: Dufour 44, November 2024 offer",
                  "url": "https://www.eurosailyacht.com/en/latest-offers/267/44-novembre-2024",
                  "kind": "documented-vessel-example",
                  "locator": "Main profile",
                  "evidence": "The new-generation Dufour 44 offer explicitly lists engine Volvo Penta D2-60, with three cabins and two bathrooms.",
                  "note": "Euro Sail Yacht's November 2024 new-generation Dufour 44 offer. Catalogue covers 2024/2025. Not applicable to the separate 2004 catalogue entry. The new-generation Dufour 44 offer explicitly lists engine Volvo Penta D2-60, with three cabins and two bathrooms."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 44
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Dufour 44 2024 engine D2-60 specifications"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-39893520-volvopenta-d260-1"
        },
        {
          "name": "Dufour 44 (2004 catalogue entry)",
          "boatType": "sailing-yacht",
          "yachtModelId": 126191,
          "sourceModelIds": [
            126191
          ],
          "sourceModelNames": [
            "Dufour 44 - 4 cab.*"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-126191-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "DBY stock INDU442820, ALL DAY, explicitly a 2004 Dufour 44 of the Felci / Patrick Roseo generation, only. Catalogue covers 2004 but describes four cabins; ALL DAY has a three-cabin owner layout. This establishes an observed installation for the older named Dufour 44 design, not sourceModelId 126191's individual charter boat or every layout. Not the 2024/2025 Dufour 44, and no B suffix is inferred from the separate Performance listing.",
              "source": {
                "id": "de-dufour44-2004-dby",
                "title": "DBY Boat Sales: 2004 Dufour 44 ALL DAY, stock INDU442820",
                "url": "https://www.dbyboatsales.com.au/?bdbrochure=dufour-44",
                "kind": "documented-vessel-example",
                "locator": "PDF page 1 Boat Details / Inventory; page 2 Features; page 4 Engine Details",
                "evidence": "The original broker PDF explicitly calls ALL DAY a 2004 Dufour 44, attributes the design to Umberto Felci / Patrick Roseo, and lists one Volvo Penta D2-55, 55 hp. The observed boat has a three-cabin owner layout. Although the inventory field says Engine Standard, this vessel listing is not treated as proof of universal factory fit.",
                "note": "DBY stock INDU442820, ALL DAY, explicitly a 2004 Dufour 44 of the Felci / Patrick Roseo generation, only. Catalogue covers 2004 but describes four cabins; ALL DAY has a three-cabin owner layout. This establishes an observed installation for the older named Dufour 44 design, not sourceModelId 126191's individual charter boat or every layout. Not the 2024/2025 Dufour 44, and no B suffix is inferred from the separate Performance listing. The original broker PDF explicitly calls ALL DAY a 2004 Dufour 44, attributes the design to Umberto Felci / Patrick Roseo, and lists one Volvo Penta D2-55, 55 hp. The observed boat has a three-cabin owner layout. Although the inventory field says Engine Standard, this vessel listing is not treated as proof of universal factory fit."
              },
              "sources": [
                {
                  "id": "de-dufour44-2004-dby",
                  "title": "DBY Boat Sales: 2004 Dufour 44 ALL DAY, stock INDU442820",
                  "url": "https://www.dbyboatsales.com.au/?bdbrochure=dufour-44",
                  "kind": "documented-vessel-example",
                  "locator": "PDF page 1 Boat Details / Inventory; page 2 Features; page 4 Engine Details",
                  "evidence": "The original broker PDF explicitly calls ALL DAY a 2004 Dufour 44, attributes the design to Umberto Felci / Patrick Roseo, and lists one Volvo Penta D2-55, 55 hp. The observed boat has a three-cabin owner layout. Although the inventory field says Engine Standard, this vessel listing is not treated as proof of universal factory fit.",
                  "note": "DBY stock INDU442820, ALL DAY, explicitly a 2004 Dufour 44 of the Felci / Patrick Roseo generation, only. Catalogue covers 2004 but describes four cabins; ALL DAY has a three-cabin owner layout. This establishes an observed installation for the older named Dufour 44 design, not sourceModelId 126191's individual charter boat or every layout. Not the 2024/2025 Dufour 44, and no B suffix is inferred from the separate Performance listing. The original broker PDF explicitly calls ALL DAY a 2004 Dufour 44, attributes the design to Umberto Felci / Patrick Roseo, and lists one Volvo Penta D2-55, 55 hp. The observed boat has a three-cabin owner layout. Although the inventory field says Engine Standard, this vessel listing is not treated as proof of universal factory fit."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2004",
              "label": "2004 build",
              "year": 2004,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 44\" \"2004\" \"engine\" Volvo",
              "\"Dufour 44\" \"2004\" \"Volvo\" \"D2\"",
              "Dufour 44 2004 Volvo engine original brochure"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-126191-volvopenta-d255-1"
        },
        {
          "name": "Dufour 48",
          "boatType": "sailing-yacht",
          "yachtModelId": 52057032,
          "sourceModelIds": [
            52057032
          ],
          "sourceModelNames": [
            "Dufour 48"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-52057032-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2025 Queensland monohull stock vessel only; catalogue covers 2025/2026. Not the 48 Catamaran, and SD60 is not retained as an engine model.",
              "source": {
                "id": "de-dufour48mono",
                "title": "Broker stock listing: 2025 Dufour 48, Queensland",
                "url": "https://www.yachtworld.com/yacht/2025-dufour-48-10282855/",
                "kind": "documented-vessel-example",
                "locator": "Mechanical and performance inventory; search-indexed engine description",
                "evidence": "The 2025 monohull stock boat has one Yanmar 4JH80 common-rail diesel rated in the listing at 80 hp. SD60 is separately described as its saildrive, not its engine.",
                "note": "2025 Queensland monohull stock vessel only; catalogue covers 2025/2026. Not the 48 Catamaran, and SD60 is not retained as an engine model. The 2025 monohull stock boat has one Yanmar 4JH80 common-rail diesel rated in the listing at 80 hp. SD60 is separately described as its saildrive, not its engine."
              },
              "sources": [
                {
                  "id": "de-dufour48mono",
                  "title": "Broker stock listing: 2025 Dufour 48, Queensland",
                  "url": "https://www.yachtworld.com/yacht/2025-dufour-48-10282855/",
                  "kind": "documented-vessel-example",
                  "locator": "Mechanical and performance inventory; search-indexed engine description",
                  "evidence": "The 2025 monohull stock boat has one Yanmar 4JH80 common-rail diesel rated in the listing at 80 hp. SD60 is separately described as its saildrive, not its engine.",
                  "note": "2025 Queensland monohull stock vessel only; catalogue covers 2025/2026. Not the 48 Catamaran, and SD60 is not retained as an engine model. The 2025 monohull stock boat has one Yanmar 4JH80 common-rail diesel rated in the listing at 80 hp. SD60 is separately described as its saildrive, not its engine."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 48\" \"2025\" \"engine\" model",
              "\"Dufour 48\" \"4JH80\" -site:yachtworld.* -site:boats.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-52057032-yanmar-4jh80-1"
        },
        {
          "name": "Dufour 48 Catamaran",
          "boatType": "catamaran",
          "yachtModelId": 5052719,
          "sourceModelIds": [
            5052719,
            7516919
          ],
          "sourceModelNames": [
            "Dufour 48 Catamaran - 4 + 2 cab.",
            "Dufour 48 Catamaran - 5 + 1 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-5052719-volvopenta-d260-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60",
              "engineDisplayName": "Volvo Penta D2-60",
              "engineReferenceId": "volvo_d2_60",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "ProSail's 2019 catamaran example only. Catalogue spans 2018-2025; the example does not establish every year's factory fit. Not applicable to the new 48 monohull.",
              "source": {
                "id": "de-dufour48cat",
                "title": "ProSail: Dufour 48 Catamaran, 2019",
                "url": "https://www.prosail.it/en/yachts/dufour-48-catamaran-2019/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed engine specification",
                "evidence": "The 2019 Dufour 48 Catamaran listing names two Volvo Penta D2 60 engines, each 60 hp.",
                "note": "ProSail's 2019 catamaran example only. Catalogue spans 2018-2025; the example does not establish every year's factory fit. Not applicable to the new 48 monohull. The 2019 Dufour 48 Catamaran listing names two Volvo Penta D2 60 engines, each 60 hp."
              },
              "sources": [
                {
                  "id": "de-dufour48cat",
                  "title": "ProSail: Dufour 48 Catamaran, 2019",
                  "url": "https://www.prosail.it/en/yachts/dufour-48-catamaran-2019/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed engine specification",
                  "evidence": "The 2019 Dufour 48 Catamaran listing names two Volvo Penta D2 60 engines, each 60 hp.",
                  "note": "ProSail's 2019 catamaran example only. Catalogue spans 2018-2025; the example does not establish every year's factory fit. Not applicable to the new 48 monohull. The 2019 Dufour 48 Catamaran listing names two Volvo Penta D2 60 engines, each 60 hp."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 88
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 48 Catamaran\" \"engine\" \"D2\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-5052719-volvopenta-d260-2"
        },
        {
          "name": "Dufour 56 Exclusive",
          "boatType": "sailing-yacht",
          "yachtModelId": 1374392,
          "sourceModelIds": [
            1374392,
            22525343
          ],
          "sourceModelNames": [
            "Dufour 56 Exclusive - 4 + 1 cab.",
            "Dufour 56 Exclusive - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1374392-volvopenta-d3110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-110",
              "engineDisplayName": "Volvo Penta D3-110",
              "engineReferenceId": "volvo_d3_110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Grabau's 2019 Dufour 56 Exclusive only; catalogue covers 2019, 2020 and 2023. No universal fit across those years is implied.",
              "source": {
                "id": "de-dufour56-110",
                "title": "Grabau International: 2019 Dufour 56 Exclusive",
                "url": "https://www.grabauinternational.com/dompdf/dompdf.php?input_file=https%3A%2F%2Fwww.grabauinternational.com%2Fbrokerage_print_pdf.php%3Fid%3D3001239&out=2019-dufour-56-exclusive-3001239",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed machinery and broker comments",
                "evidence": "The original broker's 2019 Dufour 56 Exclusive brochure names a Volvo D3-110 engine and four-bladed feathering propeller.",
                "note": "Grabau's 2019 Dufour 56 Exclusive only; catalogue covers 2019, 2020 and 2023. No universal fit across those years is implied. The original broker's 2019 Dufour 56 Exclusive brochure names a Volvo D3-110 engine and four-bladed feathering propeller."
              },
              "sources": [
                {
                  "id": "de-dufour56-110",
                  "title": "Grabau International: 2019 Dufour 56 Exclusive",
                  "url": "https://www.grabauinternational.com/dompdf/dompdf.php?input_file=https%3A%2F%2Fwww.grabauinternational.com%2Fbrokerage_print_pdf.php%3Fid%3D3001239&out=2019-dufour-56-exclusive-3001239",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed machinery and broker comments",
                  "evidence": "The original broker's 2019 Dufour 56 Exclusive brochure names a Volvo D3-110 engine and four-bladed feathering propeller.",
                  "note": "Grabau's 2019 Dufour 56 Exclusive only; catalogue covers 2019, 2020 and 2023. No universal fit across those years is implied. The original broker's 2019 Dufour 56 Exclusive brochure names a Volvo D3-110 engine and four-bladed feathering propeller."
                }
              ],
              "selectionPower": {
                "kw": 81,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/47701949_FR-VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 81
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1374392-volvopenta-d3150-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-150",
              "engineDisplayName": "Volvo Penta D3-150",
              "engineReferenceId": "review_volvopenta_d3150",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Caraibe Yachts' separately documented sold 56 Exclusive only; build year not established from the cited engine passage, so no catalogue year is assigned to it.",
              "source": {
                "id": "de-dufour56-150",
                "title": "Caraibe Yachts: Dufour 56 Exclusive sold vessel",
                "url": "https://www.caraibe-yachts.com/en/bateaux/sold/dufour-56-exclusive",
                "kind": "documented-vessel-example",
                "locator": "ENGINE(S)",
                "evidence": "The selling broker explicitly describes one Volvo Penta D3-150 diesel with V-drive transmission. The extracted passage does not establish the boat's build year.",
                "note": "Caraibe Yachts' separately documented sold 56 Exclusive only; build year not established from the cited engine passage, so no catalogue year is assigned to it. The selling broker explicitly describes one Volvo Penta D3-150 diesel with V-drive transmission. The extracted passage does not establish the boat's build year."
              },
              "sources": [
                {
                  "id": "de-dufour56-150",
                  "title": "Caraibe Yachts: Dufour 56 Exclusive sold vessel",
                  "url": "https://www.caraibe-yachts.com/en/bateaux/sold/dufour-56-exclusive",
                  "kind": "documented-vessel-example",
                  "locator": "ENGINE(S)",
                  "evidence": "The selling broker explicitly describes one Volvo Penta D3-150 diesel with V-drive transmission. The extracted passage does not establish the boat's build year.",
                  "note": "Caraibe Yachts' separately documented sold 56 Exclusive only; build year not established from the cited engine passage, so no catalogue year is assigned to it. The selling broker explicitly describes one Volvo Penta D3-150 diesel with V-drive transmission. The extracted passage does not establish the boat's build year."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://manualzilla.com/doc/6385253/manuel-d-instructions",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide%20de%20l%27utilisateur%20D3.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 56 Exclusive\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1374392-volvopenta-d3110-1"
        },
        {
          "name": "Dufour 310 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 593131,
          "sourceModelIds": [
            593131
          ],
          "sourceModelNames": [
            "Dufour 310 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-593131-volvopenta-d120-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Star Yachting's 2014 310 Grand Large only. Catalogue covers 2014 and 2018; the 2014 example does not verify the 2018 individual boat.",
              "source": {
                "id": "de-dufour310",
                "title": "Star Yachting: 2014 Dufour 310 Grand Large inventory",
                "url": "https://www.star-yachting.fr/en/media-file/1242926/star-yachting-fiche-bateau-dufour-310-grand-large-en.pdf",
                "kind": "documented-vessel-example",
                "locator": "Characteristics and Engine specification",
                "evidence": "The broker sheet identifies a 2014 Dufour 310 Grand Large and one Volvo Penta D1-20 with saildrive.",
                "note": "Star Yachting's 2014 310 Grand Large only. Catalogue covers 2014 and 2018; the 2014 example does not verify the 2018 individual boat. The broker sheet identifies a 2014 Dufour 310 Grand Large and one Volvo Penta D1-20 with saildrive."
              },
              "sources": [
                {
                  "id": "de-dufour310",
                  "title": "Star Yachting: 2014 Dufour 310 Grand Large inventory",
                  "url": "https://www.star-yachting.fr/en/media-file/1242926/star-yachting-fiche-bateau-dufour-310-grand-large-en.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Characteristics and Engine specification",
                  "evidence": "The broker sheet identifies a 2014 Dufour 310 Grand Large and one Volvo Penta D1-20 with saildrive.",
                  "note": "Star Yachting's 2014 310 Grand Large only. Catalogue covers 2014 and 2018; the 2014 example does not verify the 2018 individual boat. The broker sheet identifies a 2014 Dufour 310 Grand Large and one Volvo Penta D1-20 with saildrive."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 310\" \"engine\" \"D1\"",
              "\"Dufour 310\" \"D1-20\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-593131-volvopenta-d120-1"
        },
        {
          "name": "Dufour 335 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 516950,
          "sourceModelIds": [
            516950
          ],
          "sourceModelNames": [
            "Dufour 335 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-516950-volvopenta-d130-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "De Valk reference 400656, built 2014, only. Catalogue covers 2014; the listing's overhaul does not establish a different engine model or the other catalogue yachts' installations.",
              "source": {
                "id": "de-dufour335",
                "title": "De Valk: 2014 Dufour 335 Grand Large, reference 400656",
                "url": "https://www.devalk.nl/en/yachtbrokerage/400656/DUFOUR-335-GRAND-LARGE.html",
                "kind": "documented-vessel-example",
                "locator": "General and Machinery",
                "evidence": "The 2014 boat has one Volvo Penta D1-30, 29 hp, installed in 2014. The listing separately records a 2022/2023 overhaul.",
                "note": "De Valk reference 400656, built 2014, only. Catalogue covers 2014; the listing's overhaul does not establish a different engine model or the other catalogue yachts' installations. The 2014 boat has one Volvo Penta D1-30, 29 hp, installed in 2014. The listing separately records a 2022/2023 overhaul."
              },
              "sources": [
                {
                  "id": "de-dufour335",
                  "title": "De Valk: 2014 Dufour 335 Grand Large, reference 400656",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/400656/DUFOUR-335-GRAND-LARGE.html",
                  "kind": "documented-vessel-example",
                  "locator": "General and Machinery",
                  "evidence": "The 2014 boat has one Volvo Penta D1-30, 29 hp, installed in 2014. The listing separately records a 2022/2023 overhaul.",
                  "note": "De Valk reference 400656, built 2014, only. Catalogue covers 2014; the listing's overhaul does not establish a different engine model or the other catalogue yachts' installations. The 2014 boat has one Volvo Penta D1-30, 29 hp, installed in 2014. The listing separately records a 2022/2023 overhaul."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 335\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-516950-volvopenta-d130-1"
        },
        {
          "name": "Dufour 350 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 829486,
          "sourceModelIds": [
            829486
          ],
          "sourceModelNames": [
            "Dufour 350 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-829486-volvopenta-d130f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30F",
              "engineDisplayName": "Volvo Penta D1-30F",
              "engineReferenceId": "volvo_d1_30f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Astra, model year 2017 with engine year 2016, only. Catalogue covers 2015-2017. Suffix F is retained and is not assumed for every boat.",
              "source": {
                "id": "de-dufour350-f",
                "title": "Northstar Yacht Sales: 2017 Dufour 350 Grand Large Astra",
                "url": "https://www.northstaryachtsales.com/boat-details/2017-dufour-350-grand-large-34-8656593",
                "kind": "documented-vessel-example",
                "locator": "Engines",
                "evidence": "Astra is described as model year 2017; the engine field names Volvo-Penta D1-30F, engine year 2016, 29 hp.",
                "note": "Astra, model year 2017 with engine year 2016, only. Catalogue covers 2015-2017. Suffix F is retained and is not assumed for every boat. Astra is described as model year 2017; the engine field names Volvo-Penta D1-30F, engine year 2016, 29 hp."
              },
              "sources": [
                {
                  "id": "de-dufour350-f",
                  "title": "Northstar Yacht Sales: 2017 Dufour 350 Grand Large Astra",
                  "url": "https://www.northstaryachtsales.com/boat-details/2017-dufour-350-grand-large-34-8656593",
                  "kind": "documented-vessel-example",
                  "locator": "Engines",
                  "evidence": "Astra is described as model year 2017; the engine field names Volvo-Penta D1-30F, engine year 2016, 29 hp.",
                  "note": "Astra, model year 2017 with engine year 2016, only. Catalogue covers 2015-2017. Suffix F is retained and is not assumed for every boat. Astra is described as model year 2017; the engine field names Volvo-Penta D1-30F, engine year 2016, 29 hp."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://www.cnml.eu/wp-content/uploads/2018/03/manuel-de-lutilisateur-D1-20F.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide-Utilisateur_Moteurs-Volvo-Penta-D1-et-D2_Manuel-7748803_version-2020_DB-MOTEURS.pdf",
                  "https://essexcountynj.org/wp-content/uploads/2020/08/Leisure-Diesel-Basic-Packages-MY-2021.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-829486-volvopenta-d130-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dream Yacht's 2015 Valencia only; the operator does not give an F suffix. Not a claim that every 350 GL has this configuration.",
              "source": {
                "id": "de-dufour350-dream",
                "title": "Dream Yacht: 2015 Dufour 350 GL Valencia",
                "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1091?lang=it",
                "kind": "documented-vessel-example",
                "locator": "Vessel header and Inventory / Engine(s)",
                "evidence": "The charter operator's Valencia inventory names Volvo Penta D1-30 and 30 hp; the Volvo Penta 130 S-B is separately the saildrive.",
                "note": "Dream Yacht's 2015 Valencia only; the operator does not give an F suffix. Not a claim that every 350 GL has this configuration. The charter operator's Valencia inventory names Volvo Penta D1-30 and 30 hp; the Volvo Penta 130 S-B is separately the saildrive."
              },
              "sources": [
                {
                  "id": "de-dufour350-dream",
                  "title": "Dream Yacht: 2015 Dufour 350 GL Valencia",
                  "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1091?lang=it",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel header and Inventory / Engine(s)",
                  "evidence": "The charter operator's Valencia inventory names Volvo Penta D1-30 and 30 hp; the Volvo Penta 130 S-B is separately the saildrive.",
                  "note": "Dream Yacht's 2015 Valencia only; the operator does not give an F suffix. Not a claim that every 350 GL has this configuration. The charter operator's Valencia inventory names Volvo Penta D1-30 and 30 hp; the Volvo Penta 130 S-B is separately the saildrive."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 350\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-829486-volvopenta-d130f-1"
        },
        {
          "name": "Dufour 360 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 4584373,
          "sourceModelIds": [
            4584373,
            4681716
          ],
          "sourceModelNames": [
            "Dufour 360 GL",
            "Dufour 360 GL - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-4584373-volvopenta-d130-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dream Yacht's 2019 Snowdrop only, described as Dufour 360. Catalogue covers 2018-2020 360 GL. The saildrive type is separate, and no suffix or universal factory fit is inferred.",
              "source": {
                "id": "de-dufour360",
                "title": "Dream Yacht: 2019 Dufour 360 Snowdrop",
                "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1172",
                "kind": "documented-vessel-example",
                "locator": "Vessel header and Inventory / Engine(s)",
                "evidence": "The 2019 Snowdrop inventory explicitly names Volvo D1 30, 30 hp, separately from the Volvo 130 S D saildrive.",
                "note": "Dream Yacht's 2019 Snowdrop only, described as Dufour 360. Catalogue covers 2018-2020 360 GL. The saildrive type is separate, and no suffix or universal factory fit is inferred. The 2019 Snowdrop inventory explicitly names Volvo D1 30, 30 hp, separately from the Volvo 130 S D saildrive."
              },
              "sources": [
                {
                  "id": "de-dufour360",
                  "title": "Dream Yacht: 2019 Dufour 360 Snowdrop",
                  "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1172",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel header and Inventory / Engine(s)",
                  "evidence": "The 2019 Snowdrop inventory explicitly names Volvo D1 30, 30 hp, separately from the Volvo 130 S D saildrive.",
                  "note": "Dream Yacht's 2019 Snowdrop only, described as Dufour 360. Catalogue covers 2018-2020 360 GL. The saildrive type is separate, and no suffix or universal factory fit is inferred. The 2019 Snowdrop inventory explicitly names Volvo D1 30, 30 hp, separately from the Volvo 130 S D saildrive."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 360\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4584373-volvopenta-d130-1"
        },
        {
          "name": "Dufour 375 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 519477,
          "sourceModelIds": [
            519477
          ],
          "sourceModelNames": [
            "Dufour 375 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-519477-yanmar-3ym30-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Xboat reference 6179, a separate 2011 375 Grand Large only. No claim for all 2013 boats, and not 3YM30AE.",
              "source": {
                "id": "de-dufour375-yanmar",
                "title": "Xboat: 2011 Dufour 375 Grand Large, reference 6179",
                "url": "https://www.xboat.uk/PDFs-6179-DUFOUR_DUFOUR-375-GRAND-LARGE",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed vessel year and Engines table",
                "evidence": "The original broker sheet names a 2011 Dufour 375 Grand Large with one Yanmar 3YM30. It does not support the different 3YM30AE designation.",
                "note": "Xboat reference 6179, a separate 2011 375 Grand Large only. No claim for all 2013 boats, and not 3YM30AE. The original broker sheet names a 2011 Dufour 375 Grand Large with one Yanmar 3YM30. It does not support the different 3YM30AE designation."
              },
              "sources": [
                {
                  "id": "de-dufour375-yanmar",
                  "title": "Xboat: 2011 Dufour 375 Grand Large, reference 6179",
                  "url": "https://www.xboat.uk/PDFs-6179-DUFOUR_DUFOUR-375-GRAND-LARGE",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed vessel year and Engines table",
                  "evidence": "The original broker sheet names a 2011 Dufour 375 Grand Large with one Yanmar 3YM30. It does not support the different 3YM30AE designation.",
                  "note": "Xboat reference 6179, a separate 2011 375 Grand Large only. No claim for all 2013 boats, and not 3YM30AE. The original broker sheet names a 2011 Dufour 375 Grand Large with one Yanmar 3YM30. It does not support the different 3YM30AE designation."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-519477-volvopenta-d240f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40F",
              "engineDisplayName": "Volvo Penta D2-40F",
              "engineReferenceId": "review_volvopenta_d240f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "De Valk's 2011-built, 2012-launched 375 Grand Large only; catalogue covers 2013, not this individual boat.",
              "source": {
                "id": "de-dufour375-volvo",
                "title": "De Valk: Dufour 375 Grand Large, reference 807067",
                "url": "https://www.devalk.nl/en/yachtbrokerage/807067/DUFOUR-375-GRAND-LARGE.html",
                "kind": "documented-vessel-example",
                "locator": "General and Machinery",
                "evidence": "The 2011-built, 2012-launched boat has one Volvo Penta D2-40F, listed at 39 hp, installed in 2011.",
                "note": "De Valk's 2011-built, 2012-launched 375 Grand Large only; catalogue covers 2013, not this individual boat. The 2011-built, 2012-launched boat has one Volvo Penta D2-40F, listed at 39 hp, installed in 2011."
              },
              "sources": [
                {
                  "id": "de-dufour375-volvo",
                  "title": "De Valk: Dufour 375 Grand Large, reference 807067",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/807067/DUFOUR-375-GRAND-LARGE.html",
                  "kind": "documented-vessel-example",
                  "locator": "General and Machinery",
                  "evidence": "The 2011-built, 2012-launched boat has one Volvo Penta D2-40F, listed at 39 hp, installed in 2011.",
                  "note": "De Valk's 2011-built, 2012-launched 375 Grand Large only; catalogue covers 2013, not this individual boat. The 2011-built, 2012-launched boat has one Volvo Penta D2-40F, listed at 39 hp, installed in 2011."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://www.cnml.eu/wp-content/uploads/2018/03/manuel-de-lutilisateur-D1-20F.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide-Utilisateur_Moteurs-Volvo-Penta-D1-et-D2_Manuel-7748803_version-2020_DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 375\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-519477-yanmar-3ym30-1"
        },
        {
          "name": "Dufour 382 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 829520,
          "sourceModelIds": [
            829520
          ],
          "sourceModelNames": [
            "Dufour 382 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-829520-volvopenta-d240f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40F",
              "engineDisplayName": "Volvo Penta D2-40F",
              "engineReferenceId": "review_volvopenta_d240f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dream Yacht's 2017 Taonga only. Catalogue covers 2015-2018; the F designation is not extrapolated to all four build years.",
              "source": {
                "id": "de-dufour382",
                "title": "Dream Yacht: 2017 Dufour 382 Grand Large Taonga",
                "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/984",
                "kind": "documented-vessel-example",
                "locator": "Vessel header and Engine Model",
                "evidence": "The charter operator's 2017 Taonga inventory explicitly names Volvo Penta D2-40F.",
                "note": "Dream Yacht's 2017 Taonga only. Catalogue covers 2015-2018; the F designation is not extrapolated to all four build years. The charter operator's 2017 Taonga inventory explicitly names Volvo Penta D2-40F."
              },
              "sources": [
                {
                  "id": "de-dufour382",
                  "title": "Dream Yacht: 2017 Dufour 382 Grand Large Taonga",
                  "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/984",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel header and Engine Model",
                  "evidence": "The charter operator's 2017 Taonga inventory explicitly names Volvo Penta D2-40F.",
                  "note": "Dream Yacht's 2017 Taonga only. Catalogue covers 2015-2018; the F designation is not extrapolated to all four build years. The charter operator's 2017 Taonga inventory explicitly names Volvo Penta D2-40F."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://www.cnml.eu/wp-content/uploads/2018/03/manuel-de-lutilisateur-D1-20F.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide-Utilisateur_Moteurs-Volvo-Penta-D1-et-D2_Manuel-7748803_version-2020_DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 382\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-829520-volvopenta-d240f-1"
        },
        {
          "name": "Dufour 390",
          "boatType": "sailing-yacht",
          "yachtModelId": 23032907,
          "sourceModelIds": [
            23032907
          ],
          "sourceModelNames": [
            "Dufour 390"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-23032907-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2019 Marseille Dufour 390 listing only. Catalogue covers 2020; it is evidence for this modern design's observed installation, not the catalogue boat's identity.",
              "source": {
                "id": "de-dufour390",
                "title": "Broker listing: 2019 Dufour 390, Marseille",
                "url": "https://www.boats.com/sailing-boats/2019-dufour-390-9979766/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The 2019 Dufour 390 listing explicitly gives Volvo D2 40 as the engine model.",
                "note": "2019 Marseille Dufour 390 listing only. Catalogue covers 2020; it is evidence for this modern design's observed installation, not the catalogue boat's identity. The 2019 Dufour 390 listing explicitly gives Volvo D2 40 as the engine model."
              },
              "sources": [
                {
                  "id": "de-dufour390",
                  "title": "Broker listing: 2019 Dufour 390, Marseille",
                  "url": "https://www.boats.com/sailing-boats/2019-dufour-390-9979766/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The 2019 Dufour 390 listing explicitly gives Volvo D2 40 as the engine model.",
                  "note": "2019 Marseille Dufour 390 listing only. Catalogue covers 2020; it is evidence for this modern design's observed installation, not the catalogue boat's identity. The 2019 Dufour 390 listing explicitly gives Volvo D2 40 as the engine model."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 390\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23032907-volvopenta-d240-1"
        },
        {
          "name": "Dufour 390 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 7681890,
          "sourceModelIds": [
            7681890
          ],
          "sourceModelNames": [
            "Dufour 390 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-7681890-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "ProSail's 2019 Pixie, expressly described as 390 Grand Large, only. Catalogue covers 2019-2023; no universal factory fit or identity for the separate normalized Dufour 390 entry is implied.",
              "source": {
                "id": "de-dufour390gl",
                "title": "ProSail: 2019 Dufour 390 Pixie",
                "url": "https://www.prosail.it/en/yachts/dufour-390-2019-pixie/",
                "kind": "documented-vessel-example",
                "locator": "Information and engine specification",
                "evidence": "The broker explicitly calls the design 390 Grand Large and names a 40 hp Volvo Penta D2-40 SD. SD describes the saildrive installation.",
                "note": "ProSail's 2019 Pixie, expressly described as 390 Grand Large, only. Catalogue covers 2019-2023; no universal factory fit or identity for the separate normalized Dufour 390 entry is implied. The broker explicitly calls the design 390 Grand Large and names a 40 hp Volvo Penta D2-40 SD. SD describes the saildrive installation."
              },
              "sources": [
                {
                  "id": "de-dufour390gl",
                  "title": "ProSail: 2019 Dufour 390 Pixie",
                  "url": "https://www.prosail.it/en/yachts/dufour-390-2019-pixie/",
                  "kind": "documented-vessel-example",
                  "locator": "Information and engine specification",
                  "evidence": "The broker explicitly calls the design 390 Grand Large and names a 40 hp Volvo Penta D2-40 SD. SD describes the saildrive installation.",
                  "note": "ProSail's 2019 Pixie, expressly described as 390 Grand Large, only. Catalogue covers 2019-2023; no universal factory fit or identity for the separate normalized Dufour 390 entry is implied. The broker explicitly calls the design 390 Grand Large and names a 40 hp Volvo Penta D2-40 SD. SD describes the saildrive installation."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 390 GL\" \"D2-40\"",
              "Dufour 390 GL SIRENE D2-40 Catamaran Guru"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7681890-volvopenta-d240-1"
        },
        {
          "name": "Dufour 410 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 556134,
          "sourceModelIds": [
            556134
          ],
          "sourceModelNames": [
            "Dufour 410 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-556134-volvopenta-d255f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55F",
              "engineDisplayName": "Volvo Penta D2-55F",
              "engineReferenceId": "review_volvopenta_d255f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2015 Mamaroneck 410 GL example only; catalogue covers 2015. Not the Dufour 41, 41 Classic or 412 GL.",
              "source": {
                "id": "de-dufour410",
                "title": "Broker listing: 2015 Dufour 410 GL, Mamaroneck",
                "url": "https://www.boats.com/sailing-boats/2015-dufour-410-gl-10320590/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed vessel description and Propulsion / Engine Model",
                "evidence": "The 2015 410 GL listing explicitly names the Volvo Penta D2-55F engine.",
                "note": "2015 Mamaroneck 410 GL example only; catalogue covers 2015. Not the Dufour 41, 41 Classic or 412 GL. The 2015 410 GL listing explicitly names the Volvo Penta D2-55F engine."
              },
              "sources": [
                {
                  "id": "de-dufour410",
                  "title": "Broker listing: 2015 Dufour 410 GL, Mamaroneck",
                  "url": "https://www.boats.com/sailing-boats/2015-dufour-410-gl-10320590/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed vessel description and Propulsion / Engine Model",
                  "evidence": "The 2015 410 GL listing explicitly names the Volvo Penta D2-55F engine.",
                  "note": "2015 Mamaroneck 410 GL example only; catalogue covers 2015. Not the Dufour 41, 41 Classic or 412 GL. The 2015 410 GL listing explicitly names the Volvo Penta D2-55F engine."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://www.manualslib.de/manual/49008/Volvo-Penta-D2.html?page=76"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 410\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-556134-volvopenta-d255f-1"
        },
        {
          "name": "Dufour 412 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 1078623,
          "sourceModelIds": [
            1078623
          ],
          "sourceModelNames": [
            "Dufour 412 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1078623-volvopenta-d250-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "engineReferenceId": "volvo_d2_50",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Dream Yacht's 2017 Bermuda only. Catalogue covers 2016-2021; not a universal fit for that range.",
              "source": {
                "id": "de-dufour412-50",
                "title": "Dream Yacht: 2017 Dufour 412 Bermuda",
                "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1178",
                "kind": "documented-vessel-example",
                "locator": "Vessel header and Engine Model",
                "evidence": "The charter operator's 2017 Bermuda inventory names Volvo D2 50 as the engine model.",
                "note": "Dream Yacht's 2017 Bermuda only. Catalogue covers 2016-2021; not a universal fit for that range. The charter operator's 2017 Bermuda inventory names Volvo D2 50 as the engine model."
              },
              "sources": [
                {
                  "id": "de-dufour412-50",
                  "title": "Dream Yacht: 2017 Dufour 412 Bermuda",
                  "url": "https://apicube.dreamyacht.com/api/tosellboats/GetDocument/1178",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel header and Engine Model",
                  "evidence": "The charter operator's 2017 Bermuda inventory names Volvo D2 50 as the engine model.",
                  "note": "Dream Yacht's 2017 Bermuda only. Catalogue covers 2016-2021; not a universal fit for that range. The charter operator's 2017 Bermuda inventory names Volvo D2 50 as the engine model."
                }
              ],
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 37.5
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1078623-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separate 2016 Bormes-les-Mimosas 412 Grand Large example only; retained independently of the 2017 D2-50 example.",
              "source": {
                "id": "de-dufour412-55",
                "title": "Broker listing: 2016 Dufour 412 Grand Large, Bormes-les-Mimosas",
                "url": "https://ca.boats.com/sailing-boats/2016-dufour-412-grand-large-10308800/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The 2016 412 Grand Large listing explicitly gives Volvo Penta D2-55.",
                "note": "Separate 2016 Bormes-les-Mimosas 412 Grand Large example only; retained independently of the 2017 D2-50 example. The 2016 412 Grand Large listing explicitly gives Volvo Penta D2-55."
              },
              "sources": [
                {
                  "id": "de-dufour412-55",
                  "title": "Broker listing: 2016 Dufour 412 Grand Large, Bormes-les-Mimosas",
                  "url": "https://ca.boats.com/sailing-boats/2016-dufour-412-grand-large-10308800/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The 2016 412 Grand Large listing explicitly gives Volvo Penta D2-55.",
                  "note": "Separate 2016 Bormes-les-Mimosas 412 Grand Large example only; retained independently of the 2017 D2-50 example. The 2016 412 Grand Large listing explicitly gives Volvo Penta D2-55."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 412\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1078623-volvopenta-d250-1"
        },
        {
          "name": "Dufour 430",
          "boatType": "sailing-yacht",
          "yachtModelId": 10249433,
          "sourceModelIds": [
            10249433,
            22561375
          ],
          "sourceModelNames": [
            "Dufour 430",
            "Dufour 430 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10249433-volvopenta-d260-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60",
              "engineDisplayName": "Volvo Penta D2-60",
              "engineReferenceId": "volvo_d2_60",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "W-Yachts' upgraded 2024 stock Dufour 430 only. Catalogue covers 2020, 2022 and 2023; this later example does not establish the engine on those boats or a standard fit.",
              "source": {
                "id": "de-dufour430",
                "title": "W-Yachts: 2024 Dufour 430, Vestre Amoy",
                "url": "https://ca.boats.com/sailing-boats/2024-dufour-430-9987789/",
                "kind": "documented-vessel-example",
                "locator": "Seller description and Propulsion / Engine Model",
                "evidence": "The dealer's 2024 stock vessel is described as upgraded to 60 hp and its engine model is explicitly D2-60, Volvo Penta.",
                "note": "W-Yachts' upgraded 2024 stock Dufour 430 only. Catalogue covers 2020, 2022 and 2023; this later example does not establish the engine on those boats or a standard fit. The dealer's 2024 stock vessel is described as upgraded to 60 hp and its engine model is explicitly D2-60, Volvo Penta."
              },
              "sources": [
                {
                  "id": "de-dufour430",
                  "title": "W-Yachts: 2024 Dufour 430, Vestre Amoy",
                  "url": "https://ca.boats.com/sailing-boats/2024-dufour-430-9987789/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller description and Propulsion / Engine Model",
                  "evidence": "The dealer's 2024 stock vessel is described as upgraded to 60 hp and its engine model is explicitly D2-60, Volvo Penta.",
                  "note": "W-Yachts' upgraded 2024 stock Dufour 430 only. Catalogue covers 2020, 2022 and 2023; this later example does not establish the engine on those boats or a standard fit. The dealer's 2024 stock vessel is described as upgraded to 60 hp and its engine model is explicitly D2-60, Volvo Penta."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 44
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 430\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10249433-volvopenta-d260-1"
        },
        {
          "name": "Dufour 430 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 7657334,
          "sourceModelIds": [
            7657334
          ],
          "sourceModelNames": [
            "Dufour 430 GL"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-7657334-volvopenta-d260-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60",
              "engineDisplayName": "Volvo Penta D2-60",
              "engineReferenceId": "volvo_d2_60",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Malta Yachting's cited 430 Grand Large specification. Catalogue covers 2019, 2020, 2021 and 2023; publication does not verify each individual build or exclude other configurations.",
              "source": {
                "id": "de-dufour430gl",
                "title": "Malta Yachting: Dufour 430 Grand Large",
                "url": "https://www.maltayachting.com.mt/product/dufour-430-grand-large/",
                "kind": "authorized-dealer-specification",
                "locator": "Search-indexed Engine Model field",
                "evidence": "The dealer's Dufour 430 Grand Large specification explicitly gives engine model D2-60.",
                "note": "Malta Yachting's cited 430 Grand Large specification. Catalogue covers 2019, 2020, 2021 and 2023; publication does not verify each individual build or exclude other configurations. The dealer's Dufour 430 Grand Large specification explicitly gives engine model D2-60."
              },
              "sources": [
                {
                  "id": "de-dufour430gl",
                  "title": "Malta Yachting: Dufour 430 Grand Large",
                  "url": "https://www.maltayachting.com.mt/product/dufour-430-grand-large/",
                  "kind": "authorized-dealer-specification",
                  "locator": "Search-indexed Engine Model field",
                  "evidence": "The dealer's Dufour 430 Grand Large specification explicitly gives engine model D2-60.",
                  "note": "Malta Yachting's cited 430 Grand Large specification. Catalogue covers 2019, 2020, 2021 and 2023; publication does not verify each individual build or exclude other configurations. The dealer's Dufour 430 Grand Large specification explicitly gives engine model D2-60."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 44
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 8
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 430 GL\" engine Volvo"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7657334-volvopenta-d260-1"
        },
        {
          "name": "Dufour 460 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 1026022,
          "sourceModelIds": [
            1026022,
            1298313,
            7325338
          ],
          "sourceModelNames": [
            "Dufour 460 GL",
            "Dufour 460 GL - 3 cab.",
            "Dufour 460 GL - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1026022-volvopenta-d260f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60F",
              "engineDisplayName": "Volvo Penta D2-60F",
              "engineReferenceId": "review_volvopenta_d260f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Williams and Smithells' 2017 460 Grand Large only; catalogue spans 2016-2020.",
              "source": {
                "id": "de-dufour460-60",
                "title": "Williams and Smithells: 2017 Dufour 460 Grand Large",
                "url": "https://www.williamsandsmithells.com/?marinesync_pdf=12917",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed description and model/year specification",
                "evidence": "The original broker describes the 2017 Dufour 460 Grand Large as powered by a 60 hp Volvo D2-60F engine.",
                "note": "Williams and Smithells' 2017 460 Grand Large only; catalogue spans 2016-2020. The original broker describes the 2017 Dufour 460 Grand Large as powered by a 60 hp Volvo D2-60F engine."
              },
              "sources": [
                {
                  "id": "de-dufour460-60",
                  "title": "Williams and Smithells: 2017 Dufour 460 Grand Large",
                  "url": "https://www.williamsandsmithells.com/?marinesync_pdf=12917",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed description and model/year specification",
                  "evidence": "The original broker describes the 2017 Dufour 460 Grand Large as powered by a 60 hp Volvo D2-60F engine.",
                  "note": "Williams and Smithells' 2017 460 Grand Large only; catalogue spans 2016-2020. The original broker describes the 2017 Dufour 460 Grand Large as powered by a 60 hp Volvo D2-60F engine."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf",
                  "https://www.royor.net/rafni/assets/volvo-manual-instrucciones-d2-50%2C-d2-60%2C-d-75.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 44
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1026022-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Abayachting's separate 2016 460 Grand Large only. Both observed alternatives are retained; neither identifies every catalogue yacht.",
              "source": {
                "id": "de-dufour460-75",
                "title": "Abayachting: 2016 Dufour 460 Grand Large",
                "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-460-Grand-Large-usata-2016/zsM9ihJE7ECIne4ldsa-UA/v/bim/1",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Model / Engine table",
                "evidence": "The broker's 2016 460 Grand Large sheet explicitly names Volvo Penta D2-75.",
                "note": "Abayachting's separate 2016 460 Grand Large only. Both observed alternatives are retained; neither identifies every catalogue yacht. The broker's 2016 460 Grand Large sheet explicitly names Volvo Penta D2-75."
              },
              "sources": [
                {
                  "id": "de-dufour460-75",
                  "title": "Abayachting: 2016 Dufour 460 Grand Large",
                  "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-460-Grand-Large-usata-2016/zsM9ihJE7ECIne4ldsa-UA/v/bim/1",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Model / Engine table",
                  "evidence": "The broker's 2016 460 Grand Large sheet explicitly names Volvo Penta D2-75.",
                  "note": "Abayachting's separate 2016 460 Grand Large only. Both observed alternatives are retained; neither identifies every catalogue yacht. The broker's 2016 460 Grand Large sheet explicitly names Volvo Penta D2-75."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 11
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 460\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1026022-volvopenta-d260f-1"
        },
        {
          "name": "Dufour 470",
          "boatType": "sailing-yacht",
          "yachtModelId": 12732252,
          "sourceModelIds": [
            12732252,
            14279140,
            23020953,
            24752402
          ],
          "sourceModelNames": [
            "Dufour 470 - 3 cab.",
            "Dufour 470 - 4 + 1 cab.",
            "Dufour 470 - 4 cab.",
            "Dufour 470 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-12732252-volvopenta-d260f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60F",
              "engineDisplayName": "Volvo Penta D2-60F",
              "engineReferenceId": "review_volvopenta_d260f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "TNC Proyect's 2023 Denia example only, not a contradiction proving either engine universally standard.",
              "source": {
                "id": "de-dufour470-60",
                "title": "TNC Proyect: 2023 Dufour 470, Denia",
                "url": "https://www.youboat.com/boat/2023-dufour-470-9833171/",
                "kind": "documented-vessel-example",
                "locator": "Seller Marcos Perez Manglano / TNC Proyect; Engine Model",
                "evidence": "The broker's 2023 Dufour 470 example explicitly names Volvo Penta D2-60F, 60 hp.",
                "note": "TNC Proyect's 2023 Denia example only, not a contradiction proving either engine universally standard. The broker's 2023 Dufour 470 example explicitly names Volvo Penta D2-60F, 60 hp."
              },
              "sources": [
                {
                  "id": "de-dufour470-60",
                  "title": "TNC Proyect: 2023 Dufour 470, Denia",
                  "url": "https://www.youboat.com/boat/2023-dufour-470-9833171/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller Marcos Perez Manglano / TNC Proyect; Engine Model",
                  "evidence": "The broker's 2023 Dufour 470 example explicitly names Volvo Penta D2-60F, 60 hp.",
                  "note": "TNC Proyect's 2023 Denia example only, not a contradiction proving either engine universally standard. The broker's 2023 Dufour 470 example explicitly names Volvo Penta D2-60F, 60 hp."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf",
                  "https://www.royor.net/rafni/assets/volvo-manual-instrucciones-d2-50%2C-d2-60%2C-d-75.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 44
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-12732252-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Racing-Yachts reference 774, built 2024, only. Catalogue covers 2021-2025.",
              "source": {
                "id": "de-dufour470-75",
                "title": "Racing-Yachts: 2024 Dufour 470, reference 774",
                "url": "https://www.racing-yachts.com/app/web/upload/pdfs/774.pdf",
                "kind": "documented-vessel-example",
                "locator": "Vessel particulars and Engine",
                "evidence": "The original broker's 2024 Dufour 470 sheet specifies Volvo Penta D2-75.",
                "note": "Racing-Yachts reference 774, built 2024, only. Catalogue covers 2021-2025. The original broker's 2024 Dufour 470 sheet specifies Volvo Penta D2-75."
              },
              "sources": [
                {
                  "id": "de-dufour470-75",
                  "title": "Racing-Yachts: 2024 Dufour 470, reference 774",
                  "url": "https://www.racing-yachts.com/app/web/upload/pdfs/774.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel particulars and Engine",
                  "evidence": "The original broker's 2024 Dufour 470 sheet specifies Volvo Penta D2-75.",
                  "note": "Racing-Yachts reference 774, built 2024, only. Catalogue covers 2021-2025. The original broker's 2024 Dufour 470 sheet specifies Volvo Penta D2-75."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 14
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 11
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 470\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12732252-volvopenta-d260f-1"
        },
        {
          "name": "Dufour 520 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 3909307,
          "sourceModelIds": [
            3909307,
            8052769
          ],
          "sourceModelNames": [
            "Dufour 520 GL",
            "Dufour 520 GL - 3. cab"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-3909307-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separate 2018 Cecina 520 Grand Large example only. Not substituted for the larger D3-110 and not a universal 2019 fit claim.",
              "source": {
                "id": "de-dufour520-75",
                "title": "Broker listing: 2018 Dufour 520 Grand Large, Cecina",
                "url": "https://uk.boats.com/sailing-boats/2018-dufour-520-grand-large-10263608/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "This separate 2018 520 Grand Large vessel explicitly has a Volvo Penta D2-75.",
                "note": "Separate 2018 Cecina 520 Grand Large example only. Not substituted for the larger D3-110 and not a universal 2019 fit claim. This separate 2018 520 Grand Large vessel explicitly has a Volvo Penta D2-75."
              },
              "sources": [
                {
                  "id": "de-dufour520-75",
                  "title": "Broker listing: 2018 Dufour 520 Grand Large, Cecina",
                  "url": "https://uk.boats.com/sailing-boats/2018-dufour-520-grand-large-10263608/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "This separate 2018 520 Grand Large vessel explicitly has a Volvo Penta D2-75.",
                  "note": "Separate 2018 Cecina 520 Grand Large example only. Not substituted for the larger D3-110 and not a universal 2019 fit claim. This separate 2018 520 Grand Large vessel explicitly has a Volvo Penta D2-75."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-3909307-volvopenta-d3110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-110",
              "engineDisplayName": "Volvo Penta D3-110",
              "engineReferenceId": "volvo_d3_110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Abayachting's 2018 520 Grand Large - 520 GL example only; catalogue covers 2018/2019.",
              "source": {
                "id": "de-dufour520-110",
                "title": "Abayachting: 2018 Dufour 520 Grand Large - 520 GL",
                "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-520-Grand-Large-520-Gl-usata-2018/jCBiFTTyf0mHTbe92Fh9gQ/v/bim/1",
                "kind": "documented-vessel-example",
                "locator": "Model / Engine table",
                "evidence": "The broker's 2018 Dufour 520 Grand Large - 520 GL sheet explicitly names Volvo D3-110.",
                "note": "Abayachting's 2018 520 Grand Large - 520 GL example only; catalogue covers 2018/2019. The broker's 2018 Dufour 520 Grand Large - 520 GL sheet explicitly names Volvo D3-110."
              },
              "sources": [
                {
                  "id": "de-dufour520-110",
                  "title": "Abayachting: 2018 Dufour 520 Grand Large - 520 GL",
                  "url": "https://www.abayachting.com/en/pdf/Dufour-Yachts-520-Grand-Large-520-Gl-usata-2018/jCBiFTTyf0mHTbe92Fh9gQ/v/bim/1",
                  "kind": "documented-vessel-example",
                  "locator": "Model / Engine table",
                  "evidence": "The broker's 2018 Dufour 520 Grand Large - 520 GL sheet explicitly names Volvo D3-110.",
                  "note": "Abayachting's 2018 520 Grand Large - 520 GL example only; catalogue covers 2018/2019. The broker's 2018 Dufour 520 Grand Large - 520 GL sheet explicitly names Volvo D3-110."
                }
              ],
              "selectionPower": {
                "kw": 81,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/47701949_FR-VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 81
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 520\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-3909307-volvopenta-d275-1"
        },
        {
          "name": "Dufour 530",
          "boatType": "sailing-yacht",
          "yachtModelId": 10306351,
          "sourceModelIds": [
            10306351,
            10372704,
            12504008,
            13619521
          ],
          "sourceModelNames": [
            "Dufour 530",
            "Dufour 530 - 4 + 1 cab.",
            "Dufour 530 - 5 + 1 cab.",
            "Dufour 530 - 6 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10306351-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separate 2024 Dufour 530 listing, reference 9555041, only. No inference about all later boats or ODSea+ electric motor identity.",
              "source": {
                "id": "de-dufour530-80",
                "title": "Broker listing: 2024 Dufour 530, reference 9555041",
                "url": "https://www.youboat.com/boat/2024-dufour-530-9555041/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The 2024 Dufour 530 vessel listing explicitly names Yanmar 4JH80.",
                "note": "Separate 2024 Dufour 530 listing, reference 9555041, only. No inference about all later boats or ODSea+ electric motor identity. The 2024 Dufour 530 vessel listing explicitly names Yanmar 4JH80."
              },
              "sources": [
                {
                  "id": "de-dufour530-80",
                  "title": "Broker listing: 2024 Dufour 530, reference 9555041",
                  "url": "https://www.youboat.com/boat/2024-dufour-530-9555041/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The 2024 Dufour 530 vessel listing explicitly names Yanmar 4JH80.",
                  "note": "Separate 2024 Dufour 530 listing, reference 9555041, only. No inference about all later boats or ODSea+ electric motor identity. The 2024 Dufour 530 vessel listing explicitly names Yanmar 4JH80."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-10306351-volvopenta-d3110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-110",
              "engineDisplayName": "Volvo Penta D3-110",
              "engineReferenceId": "volvo_d3_110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2021 Port Saint Louis 530 example only; catalogue covers 2021-2025. HS63IV-E is a transmission, not part of the engine identity.",
              "source": {
                "id": "de-dufour530-110",
                "title": "Broker listing: 2021 Dufour 530 Grand Large, Port Saint Louis",
                "url": "https://www.boattrader.com/boat/2021-dufour-530-grand-large-8577668/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The vessel's engine field explicitly reads D3-110 / HS63IV-E, Volvo Penta. D3-110 is the engine; HS63IV-E is the transmission and is not retained as an engine model.",
                "note": "2021 Port Saint Louis 530 example only; catalogue covers 2021-2025. HS63IV-E is a transmission, not part of the engine identity. The vessel's engine field explicitly reads D3-110 / HS63IV-E, Volvo Penta. D3-110 is the engine; HS63IV-E is the transmission and is not retained as an engine model."
              },
              "sources": [
                {
                  "id": "de-dufour530-110",
                  "title": "Broker listing: 2021 Dufour 530 Grand Large, Port Saint Louis",
                  "url": "https://www.boattrader.com/boat/2021-dufour-530-grand-large-8577668/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The vessel's engine field explicitly reads D3-110 / HS63IV-E, Volvo Penta. D3-110 is the engine; HS63IV-E is the transmission and is not retained as an engine model.",
                  "note": "2021 Port Saint Louis 530 example only; catalogue covers 2021-2025. HS63IV-E is a transmission, not part of the engine identity. The vessel's engine field explicitly reads D3-110 / HS63IV-E, Volvo Penta. D3-110 is the engine; HS63IV-E is the transmission and is not retained as an engine model."
                }
              ],
              "selectionPower": {
                "kw": 81,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/47701949_FR-VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 81
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 530\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10306351-yanmar-4jh80-1"
        },
        {
          "name": "Dufour 560 GL",
          "boatType": "sailing-yacht",
          "yachtModelId": 1179831,
          "sourceModelIds": [
            1179831
          ],
          "sourceModelNames": [
            "Dufour 560 GL - 4 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1179831-volvopenta-d3110ig-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-110I-G",
              "engineDisplayName": "Volvo Penta D3-110",
              "engineReferenceId": "review_volvo_d3110i_table",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2015 560 Grand Large example only; catalogue covers 2016. Exact I-G suffix is retained. Not the later 56 Exclusive, and not proof for the catalogue's individual 2016 boat.",
              "source": {
                "id": "de-dufour560",
                "title": "Broker listing: 2015 Dufour 560 Grand Large",
                "url": "https://www.inautia.com/boat/2015-dufour-560-grand-large-2015-9480677/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The 2015 Dufour 560 Grand Large listing explicitly names Volvo Penta D3-110I-G; the I-G suffix is retained.",
                "note": "2015 560 Grand Large example only; catalogue covers 2016. Exact I-G suffix is retained. Not the later 56 Exclusive, and not proof for the catalogue's individual 2016 boat. The 2015 Dufour 560 Grand Large listing explicitly names Volvo Penta D3-110I-G; the I-G suffix is retained."
              },
              "sources": [
                {
                  "id": "de-dufour560",
                  "title": "Broker listing: 2015 Dufour 560 Grand Large",
                  "url": "https://www.inautia.com/boat/2015-dufour-560-grand-large-2015-9480677/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The 2015 Dufour 560 Grand Large listing explicitly names Volvo Penta D3-110I-G; the I-G suffix is retained.",
                  "note": "2015 560 Grand Large example only; catalogue covers 2016. Exact I-G suffix is retained. Not the later 56 Exclusive, and not proof for the catalogue's individual 2016 boat. The 2015 Dufour 560 Grand Large listing explicitly names Volvo Penta D3-110I-G; the I-G suffix is retained."
                }
              ],
              "engineFamilyReference": {
                "family": "D3-110",
                "reportedModel": "D3-110I-G",
                "referenceModel": "D3-110 I",
                "referenceId": "review_volvo_d3110i_table",
                "basis": "reviewed-base-engine-family",
                "note": "Base-engine family reference: Volvo Penta D3-110, using the published 2012 D3-110 I fuel table at load exponent 2.5. The vessel's I-G label is preserved in the research data. Its G manual prints 82 kW versus this reference's 81 kW; no correction or exact-suffix equivalence is claimed. This is not a measured Dufour fuel test.",
                "sources": [
                  {
                    "title": "Volvo Penta D3-110 I Technical Data, document 21990131, issue 01, 2012-06-26",
                    "url": "https://www.dbmoteurs.fr/sites/default/files/t_d3_110_i_f_g--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
                    "kind": "manufacturer-document",
                    "locator": "PDF page 1: General, Rated speed R5; Performance, crankshaft kW at 3000 RPM; footer. PDF page 2: Fuel system, exponent-2.5 propeller-load and full-load l/h rows.",
                    "evidence": "Printed model D3-110 I; R5; 81 kW at 3000 RPM. Numeric propeller-load fuel values are present at nine speeds through 3000 RPM. The full-load row is separate and extends to 3130 RPM. The filename's f_g text is not a printed suffix-applicability declaration.",
                    "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta technical sheet on DB Moteurs mirror; all three pages extracted and pages 1-2 rendered in memory and visually inspected for columns, units, load and date.",
                    "sha256": "907c21d79266e4b580f47fd2ecf9a708469f750caaf3e6d4654ffa5b5e20377d"
                  },
                  {
                    "title": "Volvo Penta D3-110 I Technical Data, document 21760197, issue 01, 2011-06-14",
                    "url": "https://sermakpower.com/brosur/keyif-tekne/t_d3_110.pdf",
                    "kind": "manufacturer-document",
                    "locator": "PDF page 1: R5 rated speed, crankshaft power and footer. PDF page 2: Fuel system, exponent-2.5 propeller-load l/h row.",
                    "evidence": "Earlier D3-110 I sheet also pairs 81 kW with 3000 RPM, but its numeric propeller-load fuel row differs from the 2012 edition. Preserve it as an alternative publication, not extra points to splice into the selected row.",
                    "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta sheet on Sermak Power mirror; page 1 extracted and page 2 fuel-table area rendered in memory and visually checked.",
                    "sha256": "85c5c34efe2d664cde8989a3a96d1e73b90f02a6eace07693f9a83b94187793e"
                  },
                  {
                    "title": "Volvo Penta D3 French operator manual 47702806, 06-2013",
                    "url": "https://manualzilla.com/doc/6385253/manuel-d-instructions",
                    "kind": "manufacturer-document",
                    "locator": "Printed page 139: Technical Data, D3-110i sales designation / D3-110i-G aftermarket designation, crankshaft and propeller-shaft columns.",
                    "evidence": "Exact G row prints 82 kW crankshaft and 79 kW shaft. This table gives no model-specific rated RPM. It does not establish an exact G 82-kW/3000-RPM pair or resolve the difference from the nominal 81-kW D3-110 I technical sheets.",
                    "access": "Original manufacturer manual reproduced as public HTML by Manualzilla; technical-data row and edition footer rechecked on 2026-10-17. No claim of new direct PDF retrieval."
                  }
                ]
              },
              "selectionPower": null,
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour 560\" \"engine\" \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1179831-volvopenta-d3110ig-1"
        },
        {
          "name": "Dufour Exclusive 56",
          "boatType": "sailing-yacht",
          "yachtModelId": 1519916,
          "sourceModelIds": [
            1519916,
            6280320
          ],
          "sourceModelNames": [
            "Dufour Exclusive 56 - 3 + 1 cab.",
            "Dufour Exclusive 56 - 4 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1519916-volvopenta-d3150i-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-150i",
              "engineDisplayName": "Volvo Penta D3-150i",
              "engineReferenceId": "review_volvopenta_d3150i",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Yacht Broker House's 2017 Exclusive 56 in Corfu only. Catalogue covers 2017 and 2020; no automatic sharing with the separate normalized Dufour 56 Exclusive entry and no universal 2020 fit claim.",
              "source": {
                "id": "de-dufourexclusive56",
                "title": "Yacht Broker House: 2017 Dufour Exclusive 56, Corfu",
                "url": "https://www.boats.com/sailing-boats/2017-dufour-exclusive-56-10032440/",
                "kind": "documented-vessel-example",
                "locator": "Seller Yacht Broker House; search-indexed Propulsion / Engine Model",
                "evidence": "The 2017 Dufour Exclusive 56 broker listing explicitly names Volvo Penta D3-150i.",
                "note": "Yacht Broker House's 2017 Exclusive 56 in Corfu only. Catalogue covers 2017 and 2020; no automatic sharing with the separate normalized Dufour 56 Exclusive entry and no universal 2020 fit claim. The 2017 Dufour Exclusive 56 broker listing explicitly names Volvo Penta D3-150i."
              },
              "sources": [
                {
                  "id": "de-dufourexclusive56",
                  "title": "Yacht Broker House: 2017 Dufour Exclusive 56, Corfu",
                  "url": "https://www.boats.com/sailing-boats/2017-dufour-exclusive-56-10032440/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller Yacht Broker House; search-indexed Propulsion / Engine Model",
                  "evidence": "The 2017 Dufour Exclusive 56 broker listing explicitly names Volvo Penta D3-150i.",
                  "note": "Yacht Broker House's 2017 Exclusive 56 in Corfu only. Catalogue covers 2017 and 2020; no automatic sharing with the separate normalized Dufour 56 Exclusive entry and no universal 2020 fit claim. The 2017 Dufour Exclusive 56 broker listing explicitly names Volvo Penta D3-150i."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://manualzilla.com/doc/6385253/manuel-d-instructions",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide%20de%20l%27utilisateur%20D3.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour Exclusive 56\" \"D3-110\"",
              "Dufour Exclusive 56 D3 engine broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1519916-volvopenta-d3150i-1"
        },
        {
          "name": "Dufour Exclusive 63",
          "boatType": "sailing-yacht",
          "yachtModelId": 5451700,
          "sourceModelIds": [
            5451700
          ],
          "sourceModelNames": [
            "Dufour Exclusive 63 - 4 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-5451700-volvopenta-d4180if-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D4-180I-F",
              "engineDisplayName": "Volvo Penta D4-180I-F",
              "engineReferenceId": "review_volvopenta_d4180if",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Bach Yachting's 2018 63 Exclusive only. Catalogue covers 2018; exact I-F suffix is retained and the 180 hp figure alone is not the basis for the match.",
              "source": {
                "id": "de-dufourexclusive63",
                "title": "Bach Yachting: 2018 Dufour 63 Exclusive",
                "url": "https://www.bachyachting.com/boat/sailboat-dufour_63_exclusive-2018-for_sale-475723",
                "kind": "documented-vessel-example",
                "locator": "Description and Engine model",
                "evidence": "The original broker specifies Volvo Penta D4-180I-F diesel, 132 kW / 180 hp, on the 2018 Dufour 63 Exclusive.",
                "note": "Bach Yachting's 2018 63 Exclusive only. Catalogue covers 2018; exact I-F suffix is retained and the 180 hp figure alone is not the basis for the match. The original broker specifies Volvo Penta D4-180I-F diesel, 132 kW / 180 hp, on the 2018 Dufour 63 Exclusive."
              },
              "sources": [
                {
                  "id": "de-dufourexclusive63",
                  "title": "Bach Yachting: 2018 Dufour 63 Exclusive",
                  "url": "https://www.bachyachting.com/boat/sailboat-dufour_63_exclusive-2018-for_sale-475723",
                  "kind": "documented-vessel-example",
                  "locator": "Description and Engine model",
                  "evidence": "The original broker specifies Volvo Penta D4-180I-F diesel, 132 kW / 180 hp, on the 2018 Dufour 63 Exclusive.",
                  "note": "Bach Yachting's 2018 63 Exclusive only. Catalogue covers 2018; exact I-F suffix is retained and the 180 hp figure alone is not the basis for the match. The original broker specifies Volvo Penta D4-180I-F diesel, 132 kW / 180 hp, on the 2018 Dufour 63 Exclusive."
                }
              ],
              "selectionPower": {
                "kw": 132,
                "sources": [
                  "https://www.manualslib.com/manual/3560939/Volvo-Penta-D4.html?page=138",
                  "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 132
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Dufour Exclusive 63\" engine Volvo",
              "Dufour 63 Exclusive D4 180 engine"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-5451700-volvopenta-d4180if-1"
        }
      ]
    },
    {
      "name": "Elan",
      "models": [
        {
          "name": "Elan 45",
          "boatType": "sailing-yacht",
          "yachtModelId": 100228,
          "sourceModelIds": [
            100228
          ],
          "sourceModelNames": [
            "Elan 45"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100228-yanmar-4jh3e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH3E",
              "engineDisplayName": "Yanmar 4JH3E",
              "engineReferenceId": "review_yanmar_4jh3e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Secondo Mare vessel ID 1012, explicitly an Elan 45 built 2001 with engine year 2001, only. Catalogue covers 2002; this is an adjacent-year example of the older Elan 45 generation, not proof of the individual 2002 catalogue yacht, a factory standard, or a turbo variant. Not the later Impression 45. Intermediary claims of 4JH3-TE or Nafsika's 4JH5E remain unverified and are not substituted.",
              "source": {
                "id": "de-elan45-secondomare",
                "title": "Secondo Mare: Elan 45, 2001, vessel ID 1012",
                "url": "https://secondomare.com/boat/elan-45-for-sale/",
                "kind": "documented-vessel-example",
                "locator": "Basic info; Additional specifications / Engine",
                "evidence": "The original selling broker identifies a 2001 Elan 45, length 13.42 m, and explicitly lists engine manufacturer Yanmar, model 4JH3E, engine year 2001, diesel, shaft drive. No horsepower-based model inference is involved.",
                "note": "Secondo Mare vessel ID 1012, explicitly an Elan 45 built 2001 with engine year 2001, only. Catalogue covers 2002; this is an adjacent-year example of the older Elan 45 generation, not proof of the individual 2002 catalogue yacht, a factory standard, or a turbo variant. Not the later Impression 45. Intermediary claims of 4JH3-TE or Nafsika's 4JH5E remain unverified and are not substituted. The original selling broker identifies a 2001 Elan 45, length 13.42 m, and explicitly lists engine manufacturer Yanmar, model 4JH3E, engine year 2001, diesel, shaft drive. No horsepower-based model inference is involved."
              },
              "sources": [
                {
                  "id": "de-elan45-secondomare",
                  "title": "Secondo Mare: Elan 45, 2001, vessel ID 1012",
                  "url": "https://secondomare.com/boat/elan-45-for-sale/",
                  "kind": "documented-vessel-example",
                  "locator": "Basic info; Additional specifications / Engine",
                  "evidence": "The original selling broker identifies a 2001 Elan 45, length 13.42 m, and explicitly lists engine manufacturer Yanmar, model 4JH3E, engine year 2001, diesel, shaft drive. No horsepower-based model inference is involved.",
                  "note": "Secondo Mare vessel ID 1012, explicitly an Elan 45 built 2001 with engine year 2001, only. Catalogue covers 2002; this is an adjacent-year example of the older Elan 45 generation, not proof of the individual 2002 catalogue yacht, a factory standard, or a turbo variant. Not the later Impression 45. Intermediary claims of 4JH3-TE or Nafsika's 4JH5E remain unverified and are not substituted. The original selling broker identifies a 2001 Elan 45, length 13.42 m, and explicitly lists engine manufacturer Yanmar, model 4JH3E, engine year 2001, diesel, shaft drive. No horsepower-based model inference is involved."
                }
              ],
              "selectionPower": {
                "kw": 41.2,
                "sources": [
                  "https://nhmr.nl/wp-content/uploads/2022/03/YANMAR-USE-AND-MAINTENANCE-3JH-4JH.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2002",
              "label": "2002 build",
              "year": 2002,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 45\" \"2002\" Yanmar Volvo engine",
              "Elan 45 2002 4JH3-TE broker",
              "Elan 45 Yanmar broker MD22 2001",
              "Elan 45 2002 Nafsika Yanmar engine charter operator",
              "Marea Yachting Nafsika Elan 45 engine",
              "Marea Yachting official Nafsika",
              "Elan 45 2002 Yanmar yacht broker",
              "Elan 45 Yanmar 4JH3E broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100228-yanmar-4jh3e-1"
        },
        {
          "name": "Elan 333",
          "boatType": "sailing-yacht",
          "yachtModelId": 253,
          "sourceModelIds": [
            253
          ],
          "sourceModelNames": [
            "Elan 333"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-253-yanmar-2gm20f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "2GM20F",
              "engineDisplayName": "Yanmar 2GM20F",
              "engineReferenceId": "review_yanmar_2gm20f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Yachtlink vessel sheet only; build year not established from the indexed passage. Catalogue covers 2003/2004, so neither year is individually verified. Not the older Elan 33.",
              "source": {
                "id": "de-elan333",
                "title": "Yachtlink: Elan 333 vessel particulars",
                "url": "https://www.yachtlink.be/print/pdf/node/196",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Machinery and Vessel's Particulars",
                "evidence": "The original broker's Elan 333 sheet names one Yanmar 2GM20F, listed at 18 bhp. Build year was not established from the indexed passage.",
                "note": "Yachtlink vessel sheet only; build year not established from the indexed passage. Catalogue covers 2003/2004, so neither year is individually verified. Not the older Elan 33. The original broker's Elan 333 sheet names one Yanmar 2GM20F, listed at 18 bhp. Build year was not established from the indexed passage."
              },
              "sources": [
                {
                  "id": "de-elan333",
                  "title": "Yachtlink: Elan 333 vessel particulars",
                  "url": "https://www.yachtlink.be/print/pdf/node/196",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Machinery and Vessel's Particulars",
                  "evidence": "The original broker's Elan 333 sheet names one Yanmar 2GM20F, listed at 18 bhp. Build year was not established from the indexed passage.",
                  "note": "Yachtlink vessel sheet only; build year not established from the indexed passage. Catalogue covers 2003/2004, so neither year is individually verified. Not the older Elan 33. The original broker's Elan 333 sheet names one Yanmar 2GM20F, listed at 18 bhp. Build year was not established from the indexed passage."
                }
              ],
              "selectionPower": {
                "kw": 13.4,
                "sources": [
                  "https://manuals.plus/m/4aa6cf1f22f7758b5ff0ed1abdef8b474eda37ff2418c0974ce53adbeab3eab5.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2004",
              "label": "2004 build",
              "year": 2004,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2003",
              "label": "2003 build",
              "year": 2003,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 333\" \"engine model\"",
              "\"Elan 333\" \"MD2020\"",
              "Elan 333 Yanmar 2GM20 brokerage"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-253-yanmar-2gm20f-1"
        },
        {
          "name": "Elan 344 Impression",
          "boatType": "sailing-yacht",
          "yachtModelId": 167,
          "sourceModelIds": [
            167
          ],
          "sourceModelNames": [
            "Elan 344 Impression"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-167-volvopenta-d130b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30B",
              "engineDisplayName": "Volvo Penta D1-30B",
              "engineReferenceId": "volvo_d1_30b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Batagent's specifically identified 2008 Impression 344 hull only. Catalogue covers 2006, 2008 and 2011; suffix B is not extrapolated to all builds.",
              "source": {
                "id": "de-elan344",
                "title": "Batagent: Elan Impression 344, 2008 equipment list",
                "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-e344.pdf",
                "kind": "documented-vessel-example",
                "locator": "Vessel header and Motor",
                "evidence": "The broker's 2008 Elan Impression 344 inventory explicitly names Volvo Penta D1-30B, 29 hp, and identifies the individual hull.",
                "note": "Batagent's specifically identified 2008 Impression 344 hull only. Catalogue covers 2006, 2008 and 2011; suffix B is not extrapolated to all builds. The broker's 2008 Elan Impression 344 inventory explicitly names Volvo Penta D1-30B, 29 hp, and identifies the individual hull."
              },
              "sources": [
                {
                  "id": "de-elan344",
                  "title": "Batagent: Elan Impression 344, 2008 equipment list",
                  "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-e344.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel header and Motor",
                  "evidence": "The broker's 2008 Elan Impression 344 inventory explicitly names Volvo Penta D1-30B, 29 hp, and identifies the individual hull.",
                  "note": "Batagent's specifically identified 2008 Impression 344 hull only. Catalogue covers 2006, 2008 and 2011; suffix B is not extrapolated to all builds. The broker's 2008 Elan Impression 344 inventory explicitly names Volvo Penta D1-30B, 29 hp, and identifies the individual hull."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://www.lundskov.eu/bavaria/manualer/Volvo/VolvoPentaD1-20-B_Dansk.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 344 Impression\" \"engine\"",
              "Elan Impression 344 Volvo D1-30 brochure"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-167-volvopenta-d130b-1"
        },
        {
          "name": "Elan 350 Performance",
          "boatType": "sailing-yacht",
          "yachtModelId": 116264,
          "sourceModelIds": [
            116264
          ],
          "sourceModelNames": [
            "Elan 350 Performance - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-116264-volvopenta-d130-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Nicolle Associates' 2010 Elan 350 performance-cruiser example only. Catalogue covers 2012/2013; this does not establish those individual boats' installations or use the renamed E4 as a proxy.",
              "source": {
                "id": "de-elan350",
                "title": "Nicolle Associates: 2010 Elan 350, Southampton",
                "url": "https://www.boats.com/sailing-boats/2010-elan-350-4790246/",
                "kind": "documented-vessel-example",
                "locator": "Seller Nicolle Associates; Propulsion / Engine Model",
                "evidence": "The broker's Elan 350 listing names Volvo Penta D1-30. This is an older 2010 example, not the catalogue's 2012/2013 individual boats.",
                "note": "Nicolle Associates' 2010 Elan 350 performance-cruiser example only. Catalogue covers 2012/2013; this does not establish those individual boats' installations or use the renamed E4 as a proxy. The broker's Elan 350 listing names Volvo Penta D1-30. This is an older 2010 example, not the catalogue's 2012/2013 individual boats."
              },
              "sources": [
                {
                  "id": "de-elan350",
                  "title": "Nicolle Associates: 2010 Elan 350, Southampton",
                  "url": "https://www.boats.com/sailing-boats/2010-elan-350-4790246/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller Nicolle Associates; Propulsion / Engine Model",
                  "evidence": "The broker's Elan 350 listing names Volvo Penta D1-30. This is an older 2010 example, not the catalogue's 2012/2013 individual boats.",
                  "note": "Nicolle Associates' 2010 Elan 350 performance-cruiser example only. Catalogue covers 2012/2013; this does not establish those individual boats' installations or use the renamed E4 as a proxy. The broker's Elan 350 listing names Volvo Penta D1-30. This is an older 2010 example, not the catalogue's 2012/2013 individual boats."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 6
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 350\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-116264-volvopenta-d130-1"
        },
        {
          "name": "Elan 384 Impression",
          "boatType": "sailing-yacht",
          "yachtModelId": 166,
          "sourceModelIds": [
            166
          ],
          "sourceModelNames": [
            "Elan 384 Impression"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-166-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "YoungBloods, built 2006, only. Catalogue covers 2005/2007; no universal fit or individual catalogue-boat identity is implied.",
              "source": {
                "id": "de-elan384",
                "title": "David Walters Yachts: 2006 Elan Impression 384 YoungBloods",
                "url": "https://www.davidwaltersyachts.com/for-sale/10055144",
                "kind": "documented-vessel-example",
                "locator": "Description and Engine Model",
                "evidence": "The original broker names Volvo Penta D2-40, 40 hp, for the 2006 Elan Impression 384.",
                "note": "YoungBloods, built 2006, only. Catalogue covers 2005/2007; no universal fit or individual catalogue-boat identity is implied. The original broker names Volvo Penta D2-40, 40 hp, for the 2006 Elan Impression 384."
              },
              "sources": [
                {
                  "id": "de-elan384",
                  "title": "David Walters Yachts: 2006 Elan Impression 384 YoungBloods",
                  "url": "https://www.davidwaltersyachts.com/for-sale/10055144",
                  "kind": "documented-vessel-example",
                  "locator": "Description and Engine Model",
                  "evidence": "The original broker names Volvo Penta D2-40, 40 hp, for the 2006 Elan Impression 384.",
                  "note": "YoungBloods, built 2006, only. Catalogue covers 2005/2007; no universal fit or individual catalogue-boat identity is implied. The original broker names Volvo Penta D2-40, 40 hp, for the 2006 Elan Impression 384."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2005",
              "label": "2005 build",
              "year": 2005,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 384 Impression\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-166-volvopenta-d240-1"
        },
        {
          "name": "Elan 434 Impression",
          "boatType": "sailing-yacht",
          "yachtModelId": 165,
          "sourceModelIds": [
            165
          ],
          "sourceModelNames": [
            "Elan 434 Impression"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-165-volvopenta-d255c-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55C",
              "engineDisplayName": "Volvo Penta D2-55C",
              "engineReferenceId": "review_volvopenta_d255c",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Nautilus Yacht Management's separate 2006 Impression 434 in Nadi only, outside the catalogue's build years. Exact C suffix is retained.",
              "source": {
                "id": "de-elan434-55",
                "title": "Nautilus Yacht Management: 2006 Elan Impression 434, Nadi",
                "url": "https://www.boats.com/sailing-boats/2006-elan-impression-434-10237305/?showDealerLocator=1",
                "kind": "documented-vessel-example",
                "locator": "Seller and Propulsion / Engine Model",
                "evidence": "A separate 2006 Impression 434 example explicitly names Volvo Penta D2-55C.",
                "note": "Nautilus Yacht Management's separate 2006 Impression 434 in Nadi only, outside the catalogue's build years. Exact C suffix is retained. A separate 2006 Impression 434 example explicitly names Volvo Penta D2-55C."
              },
              "sources": [
                {
                  "id": "de-elan434-55",
                  "title": "Nautilus Yacht Management: 2006 Elan Impression 434, Nadi",
                  "url": "https://www.boats.com/sailing-boats/2006-elan-impression-434-10237305/?showDealerLocator=1",
                  "kind": "documented-vessel-example",
                  "locator": "Seller and Propulsion / Engine Model",
                  "evidence": "A separate 2006 Impression 434 example explicitly names Volvo Penta D2-55C.",
                  "note": "Nautilus Yacht Management's separate 2006 Impression 434 in Nadi only, outside the catalogue's build years. Exact C suffix is retained. A separate 2006 Impression 434 example explicitly names Volvo Penta D2-55C."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://www.eddievan.com/documents/engine/volvopenta/d2-55operatormanual.pdf"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-165-volvopenta-d275b-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75B",
              "engineDisplayName": "Volvo Penta D2-75B",
              "engineReferenceId": "volvo_d2_75b",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Petzold's 2007 Cranston Impression 434 only. Catalogue covers 2007-2009; not a standard fit across that range.",
              "source": {
                "id": "de-elan434-75",
                "title": "Petzold's Marine Center: 2007 Elan Impression 434",
                "url": "https://www.boats.com/sailing-boats/2007-elan-impression-434-10132864/",
                "kind": "documented-vessel-example",
                "locator": "Seller and Propulsion / Engine Model",
                "evidence": "The broker's 2007 Impression 434 example in Cranston explicitly names Volvo Penta D2-75B.",
                "note": "Petzold's 2007 Cranston Impression 434 only. Catalogue covers 2007-2009; not a standard fit across that range. The broker's 2007 Impression 434 example in Cranston explicitly names Volvo Penta D2-75B."
              },
              "sources": [
                {
                  "id": "de-elan434-75",
                  "title": "Petzold's Marine Center: 2007 Elan Impression 434",
                  "url": "https://www.boats.com/sailing-boats/2007-elan-impression-434-10132864/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller and Propulsion / Engine Model",
                  "evidence": "The broker's 2007 Impression 434 example in Cranston explicitly names Volvo Penta D2-75B.",
                  "note": "Petzold's 2007 Cranston Impression 434 only. Catalogue covers 2007-2009; not a standard fit across that range. The broker's 2007 Impression 434 example in Cranston explicitly names Volvo Penta D2-75B."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvogroup.com/en/news-and-media/news/2008/aug/news-46596.html"
                ],
                "basis": "selection-power-reference",
                "approximate": true,
                "totalKw": 55
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 434\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-165-volvopenta-d255c-1"
        },
        {
          "name": "Elan 444 Impression",
          "boatType": "sailing-yacht",
          "yachtModelId": 110636,
          "sourceModelIds": [
            110636
          ],
          "sourceModelNames": [
            "Elan 444 Impression"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-110636-volvopenta-d255f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55F",
              "engineDisplayName": "Volvo Penta D2-55F",
              "engineReferenceId": "review_volvopenta_d255f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Sunlife Charter's TIGER only; build year not verified from the cited indexed passage. Catalogue covers 2013, which is not individually identified by this example.",
              "source": {
                "id": "de-elan444",
                "title": "Sunlife Charter: Elan 444 Impression TIGER",
                "url": "https://www.sunlife.hr/en/charter/yachtdetails/p/yachtId-3297750265000116/Elan%2B444%2BImpression-TIGER.html",
                "kind": "documented-vessel-example",
                "locator": "Specification / Engine",
                "evidence": "The charter operator's TIGER specification names Volvo D2-55 F. The indexed engine passage does not establish TIGER's build year.",
                "note": "Sunlife Charter's TIGER only; build year not verified from the cited indexed passage. Catalogue covers 2013, which is not individually identified by this example. The charter operator's TIGER specification names Volvo D2-55 F. The indexed engine passage does not establish TIGER's build year."
              },
              "sources": [
                {
                  "id": "de-elan444",
                  "title": "Sunlife Charter: Elan 444 Impression TIGER",
                  "url": "https://www.sunlife.hr/en/charter/yachtdetails/p/yachtId-3297750265000116/Elan%2B444%2BImpression-TIGER.html",
                  "kind": "documented-vessel-example",
                  "locator": "Specification / Engine",
                  "evidence": "The charter operator's TIGER specification names Volvo D2-55 F. The indexed engine passage does not establish TIGER's build year.",
                  "note": "Sunlife Charter's TIGER only; build year not verified from the cited indexed passage. Catalogue covers 2013, which is not individually identified by this example. The charter operator's TIGER specification names Volvo D2-55 F. The indexed engine passage does not establish TIGER's build year."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://www.manualslib.de/manual/49008/Volvo-Penta-D2.html?page=76"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 7
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 444\" \"engine\" \"D2\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-110636-volvopenta-d255f-1"
        },
        {
          "name": "Elan 514 Impression",
          "boatType": "sailing-yacht",
          "yachtModelId": 107353,
          "sourceModelIds": [
            107353
          ],
          "sourceModelNames": [
            "Elan 514 Impression - 4 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-107353-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Xboat reference 4489, built 2008, only. Catalogue covers 2007/2008; a separate Hvar Adventure brochure's D3 plus horsepower was not expanded into a guessed D3 engine designation.",
              "source": {
                "id": "de-elan514",
                "title": "Xboat: 2008 Elan 514 Impression, reference 4489",
                "url": "https://www.xboat.uk/PDFs-4489-ELAN-ELAN%2B514%2BIMPRESSION",
                "kind": "documented-vessel-example",
                "locator": "Vessel year and Engines table",
                "evidence": "The original broker specifies one Volvo D2-75, 75 hp, for the 2008 Elan 514 Impression.",
                "note": "Xboat reference 4489, built 2008, only. Catalogue covers 2007/2008; a separate Hvar Adventure brochure's D3 plus horsepower was not expanded into a guessed D3 engine designation. The original broker specifies one Volvo D2-75, 75 hp, for the 2008 Elan 514 Impression."
              },
              "sources": [
                {
                  "id": "de-elan514",
                  "title": "Xboat: 2008 Elan 514 Impression, reference 4489",
                  "url": "https://www.xboat.uk/PDFs-4489-ELAN-ELAN%2B514%2BIMPRESSION",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel year and Engines table",
                  "evidence": "The original broker specifies one Volvo D2-75, 75 hp, for the 2008 Elan 514 Impression.",
                  "note": "Xboat reference 4489, built 2008, only. Catalogue covers 2007/2008; a separate Hvar Adventure brochure's D3 plus horsepower was not expanded into a guessed D3 engine designation. The original broker specifies one Volvo D2-75, 75 hp, for the 2008 Elan 514 Impression."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan 514\" \"engine\" model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-107353-volvopenta-d275-1"
        },
        {
          "name": "Elan E3",
          "boatType": "sailing-yacht",
          "yachtModelId": 1093682,
          "sourceModelIds": [
            1093682
          ],
          "sourceModelNames": [
            "Elan E3"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1093682-volvopenta-d120-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Racing-Yachts reference 365 E3 example only; build year not established from the indexed engine passage. Retained independently of the later Yanmar standard.",
              "source": {
                "id": "de-elane3-volvo",
                "title": "Racing-Yachts: Elan E3, reference 365",
                "url": "https://www.racing-yachts.com/app/web/upload/pdfs/365.pdf",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Engine field",
                "evidence": "The original broker's E3 vessel sheet explicitly names D1-20 Volvo Penta; the indexed passage does not establish build year.",
                "note": "Racing-Yachts reference 365 E3 example only; build year not established from the indexed engine passage. Retained independently of the later Yanmar standard. The original broker's E3 vessel sheet explicitly names D1-20 Volvo Penta; the indexed passage does not establish build year."
              },
              "sources": [
                {
                  "id": "de-elane3-volvo",
                  "title": "Racing-Yachts: Elan E3, reference 365",
                  "url": "https://www.racing-yachts.com/app/web/upload/pdfs/365.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Engine field",
                  "evidence": "The original broker's E3 vessel sheet explicitly names D1-20 Volvo Penta; the indexed passage does not establish build year.",
                  "note": "Racing-Yachts reference 365 E3 example only; build year not established from the indexed engine passage. Retained independently of the later Yanmar standard. The original broker's E3 vessel sheet explicitly names D1-20 Volvo Penta; the indexed passage does not establish build year."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1093682-yanmar-3ym20-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Standard 2022 B E3 equipment edition only. Catalogue covers 2016; this later sheet must not be treated as proof of the original 2016 engine.",
              "source": {
                "id": "de-elane3-yanmar",
                "title": "Elan E3 Standard 2022 B equipment sheet, hosted by Sailway",
                "url": "https://sailway.es/wp-content/uploads/2022/02/E3_Standard-EU_2022B.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 1-2, Technical Specifications and Engine Equipment",
                "evidence": "The manufacturer sheet explicitly specifies Yanmar 3YM20 as the E3 standard engine. The electric option is only described by power and manufacturer, not an exact motor model.",
                "note": "Standard 2022 B E3 equipment edition only. Catalogue covers 2016; this later sheet must not be treated as proof of the original 2016 engine. The manufacturer sheet explicitly specifies Yanmar 3YM20 as the E3 standard engine. The electric option is only described by power and manufacturer, not an exact motor model."
              },
              "sources": [
                {
                  "id": "de-elane3-yanmar",
                  "title": "Elan E3 Standard 2022 B equipment sheet, hosted by Sailway",
                  "url": "https://sailway.es/wp-content/uploads/2022/02/E3_Standard-EU_2022B.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 1-2, Technical Specifications and Engine Equipment",
                  "evidence": "The manufacturer sheet explicitly specifies Yanmar 3YM20 as the E3 standard engine. The electric option is only described by power and manufacturer, not an exact motor model.",
                  "note": "Standard 2022 B E3 equipment edition only. Catalogue covers 2016; this later sheet must not be treated as proof of the original 2016 engine. The manufacturer sheet explicitly specifies Yanmar 3YM20 as the E3 standard engine. The electric option is only described by power and manufacturer, not an exact motor model."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan E3\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1093682-volvopenta-d120-1"
        },
        {
          "name": "Elan E4",
          "boatType": "sailing-yacht",
          "yachtModelId": 1696182,
          "sourceModelIds": [
            1696182,
            11369538
          ],
          "sourceModelNames": [
            "Elan E4",
            "Elan E4 - 2 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1696182-volvopenta-d130-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2015 E4 owner's-manual edition only. Catalogue spans 2017-2024 with gaps; a manual edition does not establish every later build's installation.",
              "source": {
                "id": "de-elane4-manual",
                "title": "Elan E4 owner's manual, 23 September 2015",
                "url": "https://aquatoria-yachting.com/f/e4_owners_manual_23092015.pdf",
                "kind": "manufacturer-manual",
                "locator": "Printed page 22, section 6.2.2 Engine and Propeller Installation",
                "evidence": "The manual explicitly says standard E4 versions are equipped with a Volvo D1-30 engine with saildrive. Some unrelated figure/footer labels retain E360 text, but this engine paragraph expressly names E4.",
                "note": "2015 E4 owner's-manual edition only. Catalogue spans 2017-2024 with gaps; a manual edition does not establish every later build's installation. The manual explicitly says standard E4 versions are equipped with a Volvo D1-30 engine with saildrive. Some unrelated figure/footer labels retain E360 text, but this engine paragraph expressly names E4."
              },
              "sources": [
                {
                  "id": "de-elane4-manual",
                  "title": "Elan E4 owner's manual, 23 September 2015",
                  "url": "https://aquatoria-yachting.com/f/e4_owners_manual_23092015.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Printed page 22, section 6.2.2 Engine and Propeller Installation",
                  "evidence": "The manual explicitly says standard E4 versions are equipped with a Volvo D1-30 engine with saildrive. Some unrelated figure/footer labels retain E360 text, but this engine paragraph expressly names E4.",
                  "note": "2015 E4 owner's-manual edition only. Catalogue spans 2017-2024 with gaps; a manual edition does not establish every later build's installation. The manual explicitly says standard E4 versions are equipped with a Volvo D1-30 engine with saildrive. Some unrelated figure/footer labels retain E360 text, but this engine paragraph expressly names E4."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1696182-yanmar-3ym30ae-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2019 E4 equipment/price-list edition only. AE suffix is mandatory; no 3YM30 consumption curve or 3600 rpm rating is borrowed.",
              "source": {
                "id": "de-elane4-yanmar",
                "title": "Floor Yachts: Elan E4 2019 equipment/price list",
                "url": "https://www.flooryachts.dk/wp-content/uploads/2019/06/Elan_2019_08_B-E4_Dkr_.pdf",
                "kind": "manufacturer-specification",
                "locator": "Search-indexed engine equipment item",
                "evidence": "The E4 document explicitly names Yanmar engine 3YM30AE. The AE suffix is part of the identity and must not be dropped or matched automatically to 3YM30.",
                "note": "2019 E4 equipment/price-list edition only. AE suffix is mandatory; no 3YM30 consumption curve or 3600 rpm rating is borrowed. The E4 document explicitly names Yanmar engine 3YM30AE. The AE suffix is part of the identity and must not be dropped or matched automatically to 3YM30."
              },
              "sources": [
                {
                  "id": "de-elane4-yanmar",
                  "title": "Floor Yachts: Elan E4 2019 equipment/price list",
                  "url": "https://www.flooryachts.dk/wp-content/uploads/2019/06/Elan_2019_08_B-E4_Dkr_.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Search-indexed engine equipment item",
                  "evidence": "The E4 document explicitly names Yanmar engine 3YM30AE. The AE suffix is part of the identity and must not be dropped or matched automatically to 3YM30.",
                  "note": "2019 E4 equipment/price-list edition only. AE suffix is mandatory; no 3YM30 consumption curve or 3600 rpm rating is borrowed. The E4 document explicitly names Yanmar engine 3YM30AE. The AE suffix is part of the identity and must not be dropped or matched automatically to 3YM30."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan E4\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1696182-volvopenta-d130-1"
        },
        {
          "name": "Elan E5",
          "boatType": "sailing-yacht",
          "yachtModelId": 1295737,
          "sourceModelIds": [
            1295737
          ],
          "sourceModelNames": [
            "Elan E5"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1295737-volvopenta-d240-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Standard 2019 B E5 manufacturer equipment sheet only. Catalogue covers 2020; no assertion that all 2020 boats retained this fit.",
              "source": {
                "id": "de-elane5",
                "title": "Elan E5 Standard 2019 B, Meadream Sailing / Elan Yachts France",
                "url": "https://www.meadream-sailing.com/wp-content/uploads/2020/11/Elan-Yachts-E5.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 3, Equipement Moteur",
                "evidence": "The 2019 B manufacturer equipment sheet names Volvo Penta D2-40 saildrive. The summary table's power-only Volvo field is not the basis for the identification.",
                "note": "Standard 2019 B E5 manufacturer equipment sheet only. Catalogue covers 2020; no assertion that all 2020 boats retained this fit. The 2019 B manufacturer equipment sheet names Volvo Penta D2-40 saildrive. The summary table's power-only Volvo field is not the basis for the identification."
              },
              "sources": [
                {
                  "id": "de-elane5",
                  "title": "Elan E5 Standard 2019 B, Meadream Sailing / Elan Yachts France",
                  "url": "https://www.meadream-sailing.com/wp-content/uploads/2020/11/Elan-Yachts-E5.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 3, Equipement Moteur",
                  "evidence": "The 2019 B manufacturer equipment sheet names Volvo Penta D2-40 saildrive. The summary table's power-only Volvo field is not the basis for the identification.",
                  "note": "Standard 2019 B E5 manufacturer equipment sheet only. Catalogue covers 2020; no assertion that all 2020 boats retained this fit. The 2019 B manufacturer equipment sheet names Volvo Penta D2-40 saildrive. The summary table's power-only Volvo field is not the basis for the identification."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan E5\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1295737-volvopenta-d240-1"
        },
        {
          "name": "Elan E6",
          "boatType": "sailing-yacht",
          "yachtModelId": 25647923,
          "sourceModelIds": [
            25647923
          ],
          "sourceModelNames": [
            "Elan E6"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-25647923-yanmar-4jh57-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Standard 2022 B E6 manufacturer equipment sheet. Catalogue covers 2022-2025; the cited edition is not proof for every individual build.",
              "source": {
                "id": "de-elane6-yanmar",
                "title": "Elan E6 Standard 2022 B equipment sheet, hosted by Sailway",
                "url": "https://sailway.es/wp-content/uploads/2022/02/E6_Standard-EU_2022B.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 1-2, engine specification rows and Engine Equipment",
                "evidence": "The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence.",
                "note": "Standard 2022 B E6 manufacturer equipment sheet. Catalogue covers 2022-2025; the cited edition is not proof for every individual build. The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence."
              },
              "sources": [
                {
                  "id": "de-elane6-yanmar",
                  "title": "Elan E6 Standard 2022 B equipment sheet, hosted by Sailway",
                  "url": "https://sailway.es/wp-content/uploads/2022/02/E6_Standard-EU_2022B.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 1-2, engine specification rows and Engine Equipment",
                  "evidence": "The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence.",
                  "note": "Standard 2022 B E6 manufacturer equipment sheet. Catalogue covers 2022-2025; the cited edition is not proof for every individual build. The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-25647923-volvopenta-d260f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60F",
              "engineDisplayName": "Volvo Penta D2-60F",
              "engineReferenceId": "review_volvopenta_d260f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "De Valk reference 812156, built 2022, only. The observed Volvo installation is retained separately from the published Yanmar configurations.",
              "source": {
                "id": "de-elane6-volvo",
                "title": "De Valk: 2022 Elan E6, reference 812156",
                "url": "https://www.devalk.nl/en/yachtbrokerage/812156/ELAN-E6.html",
                "kind": "documented-vessel-example",
                "locator": "Vessel year and Machinery",
                "evidence": "The original broker's 2022 Elan E6 example explicitly has one Volvo D2-60F, 60 hp. This observed installation differs from the Yanmar manufacturer-sheet configuration.",
                "note": "De Valk reference 812156, built 2022, only. The observed Volvo installation is retained separately from the published Yanmar configurations. The original broker's 2022 Elan E6 example explicitly has one Volvo D2-60F, 60 hp. This observed installation differs from the Yanmar manufacturer-sheet configuration."
              },
              "sources": [
                {
                  "id": "de-elane6-volvo",
                  "title": "De Valk: 2022 Elan E6, reference 812156",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/812156/ELAN-E6.html",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel year and Machinery",
                  "evidence": "The original broker's 2022 Elan E6 example explicitly has one Volvo D2-60F, 60 hp. This observed installation differs from the Yanmar manufacturer-sheet configuration.",
                  "note": "De Valk reference 812156, built 2022, only. The observed Volvo installation is retained separately from the published Yanmar configurations. The original broker's 2022 Elan E6 example explicitly has one Volvo D2-60F, 60 hp. This observed installation differs from the Yanmar manufacturer-sheet configuration."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf",
                  "https://www.royor.net/rafni/assets/volvo-manual-instrucciones-d2-50%2C-d2-60%2C-d-75.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 44
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-25647923-yanmar-4jh80-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicit option in the same 2022 B E6 specification only; installation must be checked on the boat.",
              "source": {
                "id": "de-elane6-yanmar",
                "title": "Elan E6 Standard 2022 B equipment sheet, hosted by Sailway",
                "url": "https://sailway.es/wp-content/uploads/2022/02/E6_Standard-EU_2022B.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF pages 1-2, engine specification rows and Engine Equipment",
                "evidence": "The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence.",
                "note": "Explicit option in the same 2022 B E6 specification only; installation must be checked on the boat. The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence."
              },
              "sources": [
                {
                  "id": "de-elane6-yanmar",
                  "title": "Elan E6 Standard 2022 B equipment sheet, hosted by Sailway",
                  "url": "https://sailway.es/wp-content/uploads/2022/02/E6_Standard-EU_2022B.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF pages 1-2, engine specification rows and Engine Equipment",
                  "evidence": "The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence.",
                  "note": "Explicit option in the same 2022 B E6 specification only; installation must be checked on the boat. The E6 sheet explicitly lists Yanmar 4JH57 standard and Yanmar 4JH80 option; engine equipment repeats 4JH57. A boilerplate certification sentence names GT6, so applicability follows the E6 document and its model-specific specification, not that sentence."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan E6\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-25647923-yanmar-4jh57-1"
        },
        {
          "name": "Elan GT6",
          "boatType": "sailing-yacht",
          "yachtModelId": 23036769,
          "sourceModelIds": [
            23036769
          ],
          "sourceModelNames": [
            "Elan GT6"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-23036769-yanmar-4jh57-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "GT6 column of the cited GT Line brochure only. Catalogue covers 2022; current hosted brochure publication alone does not verify the 2022 individual yacht. Not GT6X or GT5.",
              "source": {
                "id": "de-elangt6",
                "title": "Elan GT Line manufacturer brochure",
                "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-GT_Line_1.pdf",
                "kind": "manufacturer-specification",
                "locator": "Technical specification comparison, ELAN GT6 column / Engine (standard)",
                "evidence": "The brochure explicitly assigns Yanmar 4JH57 to GT6 in the standard-engine row; the neighbouring GT5 column lists a different engine and is not used.",
                "note": "GT6 column of the cited GT Line brochure only. Catalogue covers 2022; current hosted brochure publication alone does not verify the 2022 individual yacht. Not GT6X or GT5. The brochure explicitly assigns Yanmar 4JH57 to GT6 in the standard-engine row; the neighbouring GT5 column lists a different engine and is not used."
              },
              "sources": [
                {
                  "id": "de-elangt6",
                  "title": "Elan GT Line manufacturer brochure",
                  "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-GT_Line_1.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Technical specification comparison, ELAN GT6 column / Engine (standard)",
                  "evidence": "The brochure explicitly assigns Yanmar 4JH57 to GT6 in the standard-engine row; the neighbouring GT5 column lists a different engine and is not used.",
                  "note": "GT6 column of the cited GT Line brochure only. Catalogue covers 2022; current hosted brochure publication alone does not verify the 2022 individual yacht. Not GT6X or GT5. The brochure explicitly assigns Yanmar 4JH57 to GT6 in the standard-engine row; the neighbouring GT5 column lists a different engine and is not used."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan GT6\" \"engine model\"",
              "Elan GT6 standard specifications Yanmar 4JH57 PDF"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23036769-yanmar-4jh57-1"
        },
        {
          "name": "Elan Impression 35",
          "boatType": "sailing-yacht",
          "yachtModelId": 988651,
          "sourceModelIds": [
            988651
          ],
          "sourceModelNames": [
            "Elan Impression 35"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-988651-volvopenta-d120f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20F",
              "engineDisplayName": "Volvo Penta D1-20F",
              "engineReferenceId": "review_volvopenta_d120f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Vining Marine's 2015 boat and 2015 engine only. Catalogue covers 2015, 2017 and 2018; suffix F is not applied automatically to every boat.",
              "source": {
                "id": "de-elani35",
                "title": "Vining Marine: 2015 Elan Impression 35",
                "url": "https://viningmarine.co.nz/yachts/elan-impression-35/",
                "kind": "documented-vessel-example",
                "locator": "Specifications / engine make, model and year",
                "evidence": "The broker's 2015 boat explicitly has Volvo D1-20F, engine year 2015. The F suffix is retained.",
                "note": "Vining Marine's 2015 boat and 2015 engine only. Catalogue covers 2015, 2017 and 2018; suffix F is not applied automatically to every boat. The broker's 2015 boat explicitly has Volvo D1-20F, engine year 2015. The F suffix is retained."
              },
              "sources": [
                {
                  "id": "de-elani35",
                  "title": "Vining Marine: 2015 Elan Impression 35",
                  "url": "https://viningmarine.co.nz/yachts/elan-impression-35/",
                  "kind": "documented-vessel-example",
                  "locator": "Specifications / engine make, model and year",
                  "evidence": "The broker's 2015 boat explicitly has Volvo D1-20F, engine year 2015. The F suffix is retained.",
                  "note": "Vining Marine's 2015 boat and 2015 engine only. Catalogue covers 2015, 2017 and 2018; suffix F is not applied automatically to every boat. The broker's 2015 boat explicitly has Volvo D1-20F, engine year 2015. The F suffix is retained."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.cnml.eu/wp-content/uploads/2018/03/manuel-de-lutilisateur-D1-20F.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide-Utilisateur_Moteurs-Volvo-Penta-D1-et-D2_Manuel-7748803_version-2020_DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 13.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 35\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-988651-volvopenta-d120f-1"
        },
        {
          "name": "Elan Impression 40",
          "boatType": "sailing-yacht",
          "yachtModelId": 835488,
          "sourceModelIds": [
            835488
          ],
          "sourceModelNames": [
            "Elan Impression 40"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-835488-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "I. Castaner Yachts' 2018 Marbella Impression 40 only. Catalogue covers 2015-2019; not the 40.1 and not a universal fit.",
              "source": {
                "id": "de-elani40",
                "title": "I. Castaner Yachts: 2018 Elan Impression 40, Marbella",
                "url": "https://www.boats.com/power-boats/2018-elan-impression-40-10280522/",
                "kind": "documented-vessel-example",
                "locator": "Seller I. Castaner Yachts Brokerage & Charter; Propulsion / Engine Model",
                "evidence": "The broker's Impression 40 vessel explicitly has Volvo Penta D2-40. The portal URL uses power-boats, but the vessel and model in the ad are the sailing Impression 40.",
                "note": "I. Castaner Yachts' 2018 Marbella Impression 40 only. Catalogue covers 2015-2019; not the 40.1 and not a universal fit. The broker's Impression 40 vessel explicitly has Volvo Penta D2-40. The portal URL uses power-boats, but the vessel and model in the ad are the sailing Impression 40."
              },
              "sources": [
                {
                  "id": "de-elani40",
                  "title": "I. Castaner Yachts: 2018 Elan Impression 40, Marbella",
                  "url": "https://www.boats.com/power-boats/2018-elan-impression-40-10280522/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller I. Castaner Yachts Brokerage & Charter; Propulsion / Engine Model",
                  "evidence": "The broker's Impression 40 vessel explicitly has Volvo Penta D2-40. The portal URL uses power-boats, but the vessel and model in the ad are the sailing Impression 40.",
                  "note": "I. Castaner Yachts' 2018 Marbella Impression 40 only. Catalogue covers 2015-2019; not the 40.1 and not a universal fit. The broker's Impression 40 vessel explicitly has Volvo Penta D2-40. The portal URL uses power-boats, but the vessel and model in the ad are the sailing Impression 40."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 40\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-835488-volvopenta-d240-1"
        },
        {
          "name": "Elan Impression 40.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 10233022,
          "sourceModelIds": [
            10233022
          ],
          "sourceModelNames": [
            "Elan Impression 40.1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-10233022-volvopenta-d250-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "engineReferenceId": "volvo_d2_50",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2021 Pula Impression 40.1 example only. Catalogue covers 2020, 2022 and 2023, not this individual example's year. The manufacturer's power-only summary was not used to infer this model.",
              "source": {
                "id": "de-elani401",
                "title": "Broker listing: 2021 Elan Impression 40.1, Pula",
                "url": "https://www.boatshop24.com/us/boat/2021-elan-impression-40-1-10333878/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The 2021 Impression 40.1 vessel explicitly names Volvo Penta D2-50, 50 hp / 37.3 kW. It is not evidence of all 2020/2022/2023 charter boats.",
                "note": "2021 Pula Impression 40.1 example only. Catalogue covers 2020, 2022 and 2023, not this individual example's year. The manufacturer's power-only summary was not used to infer this model. The 2021 Impression 40.1 vessel explicitly names Volvo Penta D2-50, 50 hp / 37.3 kW. It is not evidence of all 2020/2022/2023 charter boats."
              },
              "sources": [
                {
                  "id": "de-elani401",
                  "title": "Broker listing: 2021 Elan Impression 40.1, Pula",
                  "url": "https://www.boatshop24.com/us/boat/2021-elan-impression-40-1-10333878/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The 2021 Impression 40.1 vessel explicitly names Volvo Penta D2-50, 50 hp / 37.3 kW. It is not evidence of all 2020/2022/2023 charter boats.",
                  "note": "2021 Pula Impression 40.1 example only. Catalogue covers 2020, 2022 and 2023, not this individual example's year. The manufacturer's power-only summary was not used to infer this model. The 2021 Impression 40.1 vessel explicitly names Volvo Penta D2-50, 50 hp / 37.3 kW. It is not evidence of all 2020/2022/2023 charter boats."
                }
              ],
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 37.5
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 8
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 40.1\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10233022-volvopenta-d250-1"
        },
        {
          "name": "Elan Impression 43",
          "boatType": "sailing-yacht",
          "yachtModelId": 30818625,
          "sourceModelIds": [
            30818625
          ],
          "sourceModelNames": [
            "Elan Impression 43"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-30818625-yanmar-4jh45-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Impression 43 column in the cited manufacturer brochure; catalogue covers 2023. The later hosted edition does not establish the engine on the specific 2023 catalogue boat.",
              "source": {
                "id": "de-elani43",
                "title": "Elan Impression Line manufacturer brochure: Impression 43",
                "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 8, Impression 43 technical specifications column",
                "evidence": "The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat.",
                "note": "Impression 43 column in the cited manufacturer brochure; catalogue covers 2023. The later hosted edition does not establish the engine on the specific 2023 catalogue boat. The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat."
              },
              "sources": [
                {
                  "id": "de-elani43",
                  "title": "Elan Impression Line manufacturer brochure: Impression 43",
                  "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 8, Impression 43 technical specifications column",
                  "evidence": "The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat.",
                  "note": "Impression 43 column in the cited manufacturer brochure; catalogue covers 2023. The later hosted edition does not establish the engine on the specific 2023 catalogue boat. The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-30818625-yanmar-4jh57-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Another explicitly listed Impression 43 configuration in the same brochure; not an inference from 57 hp and not assigned universally to 2023.",
              "source": {
                "id": "de-elani43",
                "title": "Elan Impression Line manufacturer brochure: Impression 43",
                "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 8, Impression 43 technical specifications column",
                "evidence": "The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat.",
                "note": "Another explicitly listed Impression 43 configuration in the same brochure; not an inference from 57 hp and not assigned universally to 2023. The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat."
              },
              "sources": [
                {
                  "id": "de-elani43",
                  "title": "Elan Impression Line manufacturer brochure: Impression 43",
                  "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 8, Impression 43 technical specifications column",
                  "evidence": "The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat.",
                  "note": "Another explicitly listed Impression 43 configuration in the same brochure; not an inference from 57 hp and not assigned universally to 2023. The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-30818625-yanmar-4jh80-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Additional explicitly listed Impression 43 configuration in the same edition; boat-specific installation must be verified.",
              "source": {
                "id": "de-elani43",
                "title": "Elan Impression Line manufacturer brochure: Impression 43",
                "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 8, Impression 43 technical specifications column",
                "evidence": "The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat.",
                "note": "Additional explicitly listed Impression 43 configuration in the same edition; boat-specific installation must be verified. The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat."
              },
              "sources": [
                {
                  "id": "de-elani43",
                  "title": "Elan Impression Line manufacturer brochure: Impression 43",
                  "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-ImpressionLine.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 8, Impression 43 technical specifications column",
                  "evidence": "The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat.",
                  "note": "Additional explicitly listed Impression 43 configuration in the same edition; boat-specific installation must be verified. The Impression 43 column explicitly names Yanmar 4JH45, 4JH57 and 4JH80 in the engine specification rows. They are retained as published configurations without assuming which applies to an individual boat."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 43\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-30818625-yanmar-4jh45-1"
        },
        {
          "name": "Elan Impression 45",
          "boatType": "sailing-yacht",
          "yachtModelId": 837181,
          "sourceModelIds": [
            837181,
            50899385,
            50899390
          ],
          "sourceModelNames": [
            "Elan Impression 45",
            "Elan Impression 45 - 3 cab.",
            "Elan Impression 45 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-837181-yanmar-4jh45-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Current 12.82 m hull-length Impression 45 in the September 2024 brochure only. Catalogue spans two generations; this is not evidence for legacy 2015-2019 boats or automatic allocation to any sourceModelId.",
              "source": {
                "id": "de-elani45-current",
                "title": "Elan Impression 45 manufacturer brochure, September 2024",
                "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 18, Technical specifications",
                "evidence": "The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45.",
                "note": "Current 12.82 m hull-length Impression 45 in the September 2024 brochure only. Catalogue spans two generations; this is not evidence for legacy 2015-2019 boats or automatic allocation to any sourceModelId. The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45."
              },
              "sources": [
                {
                  "id": "de-elani45-current",
                  "title": "Elan Impression 45 manufacturer brochure, September 2024",
                  "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 18, Technical specifications",
                  "evidence": "The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45.",
                  "note": "Current 12.82 m hull-length Impression 45 in the September 2024 brochure only. Catalogue spans two generations; this is not evidence for legacy 2015-2019 boats or automatic allocation to any sourceModelId. The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-837181-volvopenta-d255-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "2019 legacy Impression 45 vessel listing only. Catalogue includes 2015-2019 as well as 2023-2025; no transfer to the newer design under the same label.",
              "source": {
                "id": "de-elani45-legacy",
                "title": "Broker listing: 2019 Elan Impression 45, reference 9113406",
                "url": "https://www.topboats.com/uk/boat/2019-elan-impression-45-9113406/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The 2019 legacy Impression 45 vessel listing explicitly names Volvo Penta D2-55; this evidence is kept separate from the current renamed Impression design.",
                "note": "2019 legacy Impression 45 vessel listing only. Catalogue includes 2015-2019 as well as 2023-2025; no transfer to the newer design under the same label. The 2019 legacy Impression 45 vessel listing explicitly names Volvo Penta D2-55; this evidence is kept separate from the current renamed Impression design."
              },
              "sources": [
                {
                  "id": "de-elani45-legacy",
                  "title": "Broker listing: 2019 Elan Impression 45, reference 9113406",
                  "url": "https://www.topboats.com/uk/boat/2019-elan-impression-45-9113406/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The 2019 legacy Impression 45 vessel listing explicitly names Volvo Penta D2-55; this evidence is kept separate from the current renamed Impression design.",
                  "note": "2019 legacy Impression 45 vessel listing only. Catalogue includes 2015-2019 as well as 2023-2025; no transfer to the newer design under the same label. The 2019 legacy Impression 45 vessel listing explicitly names Volvo Penta D2-55; this evidence is kept separate from the current renamed Impression design."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-837181-yanmar-4jh57-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Current 12.82 m hull-length design in the September 2024 brochure only; not the earlier legacy Impression 45 or proof for each 2023-2025 catalogue boat.",
              "source": {
                "id": "de-elani45-current",
                "title": "Elan Impression 45 manufacturer brochure, September 2024",
                "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 18, Technical specifications",
                "evidence": "The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45.",
                "note": "Current 12.82 m hull-length design in the September 2024 brochure only; not the earlier legacy Impression 45 or proof for each 2023-2025 catalogue boat. The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45."
              },
              "sources": [
                {
                  "id": "de-elani45-current",
                  "title": "Elan Impression 45 manufacturer brochure, September 2024",
                  "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 18, Technical specifications",
                  "evidence": "The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45.",
                  "note": "Current 12.82 m hull-length design in the September 2024 brochure only; not the earlier legacy Impression 45 or proof for each 2023-2025 catalogue boat. The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-837181-yanmar-4jh80-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Additional explicit configuration for the current 12.82 m hull-length design only. No cross-generation engine or consumption-curve substitution.",
              "source": {
                "id": "de-elani45-current",
                "title": "Elan Impression 45 manufacturer brochure, September 2024",
                "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 18, Technical specifications",
                "evidence": "The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45.",
                "note": "Additional explicit configuration for the current 12.82 m hull-length design only. No cross-generation engine or consumption-curve substitution. The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45."
              },
              "sources": [
                {
                  "id": "de-elani45-current",
                  "title": "Elan Impression 45 manufacturer brochure, September 2024",
                  "url": "https://www.elan-yachts.com/sites/default/files/2025-02/Brochure-I45-September_2024-E-Doc-Pages.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 18, Technical specifications",
                  "evidence": "The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45.",
                  "note": "Additional explicit configuration for the current 12.82 m hull-length design only. No cross-generation engine or consumption-curve substitution. The 12.82 m hull-length current Impression 45 brochure explicitly names Yanmar 4JH45, 4JH57 and 4JH80. This is not proof for the earlier 13.85 m legacy Impression 45."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 45\" engine model",
              "Elan Impression 45.1 Yanmar Volvo standard specification PDF"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-837181-yanmar-4jh45-1"
        },
        {
          "name": "Elan Impression 45 (ex. 43)",
          "boatType": "sailing-yacht",
          "yachtModelId": 55686823,
          "sourceModelIds": [
            55686823
          ],
          "sourceModelNames": [
            "Elan Impression 45 (ex. 43) - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-55686823-yanmar-4jh45-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Pre-rename Impression 43 Standard 2023 A specification, explicitly linked to the modern 45 / ex.43 generation by Elan's 29 July 2024 announcement. Catalogue covers 2024. This is a published generation configuration, not identification of One for all, the individual catalogue yacht or every post-update boat. Not the legacy Impression 45 or 45.1.",
              "source": {
                "id": "de-elani45ex43-2023-spec",
                "title": "Elan Impression 43 Standard 2023 A equipment specification",
                "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 1 Technical Specifications / Engine Yanmar rows; page 2 Engine Equipment",
                "evidence": "The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement.",
                "note": "Pre-rename Impression 43 Standard 2023 A specification, explicitly linked to the modern 45 / ex.43 generation by Elan's 29 July 2024 announcement. Catalogue covers 2024. This is a published generation configuration, not identification of One for all, the individual catalogue yacht or every post-update boat. Not the legacy Impression 45 or 45.1. The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement."
              },
              "sources": [
                {
                  "id": "de-elani45ex43-2023-spec",
                  "title": "Elan Impression 43 Standard 2023 A equipment specification",
                  "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 1 Technical Specifications / Engine Yanmar rows; page 2 Engine Equipment",
                  "evidence": "The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement.",
                  "note": "Pre-rename Impression 43 Standard 2023 A specification, explicitly linked to the modern 45 / ex.43 generation by Elan's 29 July 2024 announcement. Catalogue covers 2024. This is a published generation configuration, not identification of One for all, the individual catalogue yacht or every post-update boat. Not the legacy Impression 45 or 45.1. The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement."
                },
                {
                  "id": "de-elani45ex43-rename",
                  "title": "Elan Yachts: Impression 43 Gets Longer and Becomes Impression 45, 29 July 2024",
                  "url": "https://www.elan-yachts.com/en/news/elan-impression-43-gets-longer-and-becomes-elan-impression-45",
                  "kind": "manufacturer-specification",
                  "locator": "Dated manufacturer announcement, model-history and design-update paragraphs",
                  "evidence": "Elan explicitly links the 2022-launched Impression 43 to the renamed Impression 45 in July 2024. It attributes increased overall length to a fixed bowsprit and describes cockpit-window and saloon updates. This establishes the modern 43-to-45 generation relationship, not an engine on any individual charter boat and not a link to the legacy Impression 45.",
                  "note": "Pre-rename Impression 43 Standard 2023 A specification, explicitly linked to the modern 45 / ex.43 generation by Elan's 29 July 2024 announcement. Catalogue covers 2024. This is a published generation configuration, not identification of One for all, the individual catalogue yacht or every post-update boat. Not the legacy Impression 45 or 45.1. Elan explicitly links the 2022-launched Impression 43 to the renamed Impression 45 in July 2024. It attributes increased overall length to a fixed bowsprit and describes cockpit-window and saloon updates. This establishes the modern 43-to-45 generation relationship, not an engine on any individual charter boat and not a link to the legacy Impression 45."
                },
                {
                  "id": "de-elani45ex43-previous-model",
                  "title": "Elan Yachts: previous-model Impression 43 technical specification",
                  "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-43",
                  "kind": "manufacturer-specification",
                  "locator": "Technical Specification / Engine (standard) and Engine (option)",
                  "evidence": "The manufacturer's retained Impression 43 page explicitly lists Yanmar 4JH45 standard and 4JH57 / 4JH80 options. The current Impression 45 page links to this page as its previous version, and the separate July 2024 announcement establishes the model-name transition.",
                  "note": "Pre-rename Impression 43 Standard 2023 A specification, explicitly linked to the modern 45 / ex.43 generation by Elan's 29 July 2024 announcement. Catalogue covers 2024. This is a published generation configuration, not identification of One for all, the individual catalogue yacht or every post-update boat. Not the legacy Impression 45 or 45.1. The manufacturer's retained Impression 43 page explicitly lists Yanmar 4JH45 standard and 4JH57 / 4JH80 options. The current Impression 45 page links to this page as its previous version, and the separate July 2024 announcement establishes the model-name transition."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-55686823-yanmar-4jh57-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicit option in the pre-rename Impression 43 Standard 2023 A sheet and retained official previous-model specification; Elan documents the July 2024 43-to-45 name/design update. This does not prove that One for all's published 57 hp engine or sourceModelId 55686823 is a 4JH57; its observed specification remains power-only.",
              "source": {
                "id": "de-elani45ex43-2023-spec",
                "title": "Elan Impression 43 Standard 2023 A equipment specification",
                "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 1 Technical Specifications / Engine Yanmar rows; page 2 Engine Equipment",
                "evidence": "The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement.",
                "note": "Explicit option in the pre-rename Impression 43 Standard 2023 A sheet and retained official previous-model specification; Elan documents the July 2024 43-to-45 name/design update. This does not prove that One for all's published 57 hp engine or sourceModelId 55686823 is a 4JH57; its observed specification remains power-only. The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement."
              },
              "sources": [
                {
                  "id": "de-elani45ex43-2023-spec",
                  "title": "Elan Impression 43 Standard 2023 A equipment specification",
                  "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 1 Technical Specifications / Engine Yanmar rows; page 2 Engine Equipment",
                  "evidence": "The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement.",
                  "note": "Explicit option in the pre-rename Impression 43 Standard 2023 A sheet and retained official previous-model specification; Elan documents the July 2024 43-to-45 name/design update. This does not prove that One for all's published 57 hp engine or sourceModelId 55686823 is a 4JH57; its observed specification remains power-only. The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement."
                },
                {
                  "id": "de-elani45ex43-rename",
                  "title": "Elan Yachts: Impression 43 Gets Longer and Becomes Impression 45, 29 July 2024",
                  "url": "https://www.elan-yachts.com/en/news/elan-impression-43-gets-longer-and-becomes-elan-impression-45",
                  "kind": "manufacturer-specification",
                  "locator": "Dated manufacturer announcement, model-history and design-update paragraphs",
                  "evidence": "Elan explicitly links the 2022-launched Impression 43 to the renamed Impression 45 in July 2024. It attributes increased overall length to a fixed bowsprit and describes cockpit-window and saloon updates. This establishes the modern 43-to-45 generation relationship, not an engine on any individual charter boat and not a link to the legacy Impression 45.",
                  "note": "Explicit option in the pre-rename Impression 43 Standard 2023 A sheet and retained official previous-model specification; Elan documents the July 2024 43-to-45 name/design update. This does not prove that One for all's published 57 hp engine or sourceModelId 55686823 is a 4JH57; its observed specification remains power-only. Elan explicitly links the 2022-launched Impression 43 to the renamed Impression 45 in July 2024. It attributes increased overall length to a fixed bowsprit and describes cockpit-window and saloon updates. This establishes the modern 43-to-45 generation relationship, not an engine on any individual charter boat and not a link to the legacy Impression 45."
                },
                {
                  "id": "de-elani45ex43-previous-model",
                  "title": "Elan Yachts: previous-model Impression 43 technical specification",
                  "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-43",
                  "kind": "manufacturer-specification",
                  "locator": "Technical Specification / Engine (standard) and Engine (option)",
                  "evidence": "The manufacturer's retained Impression 43 page explicitly lists Yanmar 4JH45 standard and 4JH57 / 4JH80 options. The current Impression 45 page links to this page as its previous version, and the separate July 2024 announcement establishes the model-name transition.",
                  "note": "Explicit option in the pre-rename Impression 43 Standard 2023 A sheet and retained official previous-model specification; Elan documents the July 2024 43-to-45 name/design update. This does not prove that One for all's published 57 hp engine or sourceModelId 55686823 is a 4JH57; its observed specification remains power-only. The manufacturer's retained Impression 43 page explicitly lists Yanmar 4JH45 standard and 4JH57 / 4JH80 options. The current Impression 45 page links to this page as its previous version, and the separate July 2024 announcement establishes the model-name transition."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-55686823-yanmar-4jh80-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Additional explicit option in the pre-rename modern Impression 43 specification, with the generation/name bridge independently established by Elan. No universal 2024 availability or individual installation is asserted, and no inference is made from another model of similar length.",
              "source": {
                "id": "de-elani45ex43-2023-spec",
                "title": "Elan Impression 43 Standard 2023 A equipment specification",
                "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf",
                "kind": "manufacturer-specification",
                "locator": "PDF page 1 Technical Specifications / Engine Yanmar rows; page 2 Engine Equipment",
                "evidence": "The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement.",
                "note": "Additional explicit option in the pre-rename modern Impression 43 specification, with the generation/name bridge independently established by Elan. No universal 2024 availability or individual installation is asserted, and no inference is made from another model of similar length. The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement."
              },
              "sources": [
                {
                  "id": "de-elani45ex43-2023-spec",
                  "title": "Elan Impression 43 Standard 2023 A equipment specification",
                  "url": "https://www.yachtsharesydney.com.au/wp-content/uploads/2022/09/I43_Standard-EU_2023A.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "PDF page 1 Technical Specifications / Engine Yanmar rows; page 2 Engine Equipment",
                  "evidence": "The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement.",
                  "note": "Additional explicit option in the pre-rename modern Impression 43 specification, with the generation/name bridge independently established by Elan. No universal 2024 availability or individual installation is asserted, and no inference is made from another model of similar length. The readable original manufacturer equipment sheet lists Yanmar 4JH45 / 45 hp standard and 4JH57 / 57 hp and 4JH80 / 80 hp as options. Engine Equipment repeats 4JH45. These are explicit pre-rename Impression 43 configurations, linked to the modern ex.43 generation through Elan's separate dated announcement."
                },
                {
                  "id": "de-elani45ex43-rename",
                  "title": "Elan Yachts: Impression 43 Gets Longer and Becomes Impression 45, 29 July 2024",
                  "url": "https://www.elan-yachts.com/en/news/elan-impression-43-gets-longer-and-becomes-elan-impression-45",
                  "kind": "manufacturer-specification",
                  "locator": "Dated manufacturer announcement, model-history and design-update paragraphs",
                  "evidence": "Elan explicitly links the 2022-launched Impression 43 to the renamed Impression 45 in July 2024. It attributes increased overall length to a fixed bowsprit and describes cockpit-window and saloon updates. This establishes the modern 43-to-45 generation relationship, not an engine on any individual charter boat and not a link to the legacy Impression 45.",
                  "note": "Additional explicit option in the pre-rename modern Impression 43 specification, with the generation/name bridge independently established by Elan. No universal 2024 availability or individual installation is asserted, and no inference is made from another model of similar length. Elan explicitly links the 2022-launched Impression 43 to the renamed Impression 45 in July 2024. It attributes increased overall length to a fixed bowsprit and describes cockpit-window and saloon updates. This establishes the modern 43-to-45 generation relationship, not an engine on any individual charter boat and not a link to the legacy Impression 45."
                },
                {
                  "id": "de-elani45ex43-previous-model",
                  "title": "Elan Yachts: previous-model Impression 43 technical specification",
                  "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-43",
                  "kind": "manufacturer-specification",
                  "locator": "Technical Specification / Engine (standard) and Engine (option)",
                  "evidence": "The manufacturer's retained Impression 43 page explicitly lists Yanmar 4JH45 standard and 4JH57 / 4JH80 options. The current Impression 45 page links to this page as its previous version, and the separate July 2024 announcement establishes the model-name transition.",
                  "note": "Additional explicit option in the pre-rename modern Impression 43 specification, with the generation/name bridge independently established by Elan. No universal 2024 availability or individual installation is asserted, and no inference is made from another model of similar length. The manufacturer's retained Impression 43 page explicitly lists Yanmar 4JH45 standard and 4JH57 / 4JH80 options. The current Impression 45 page links to this page as its previous version, and the separate July 2024 announcement establishes the model-name transition."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 45 (ex. 43)\" engine",
              "Elan Impression 45 ex 43 Yanmar 4JH57",
              "site:elan-yachts.com Impression 43 renamed 45 2024",
              "\"Impression 45 (ex. 43)\" \"Yanmar\"",
              "Elan Impression 45 ex 43 engine owners manual 4JH",
              "Elan Impression 45 ex 43 One for all engine 4JH57"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-55686823-yanmar-4jh45-1"
        },
        {
          "name": "Elan Impression 45.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 9749015,
          "sourceModelIds": [
            9749015,
            13362136
          ],
          "sourceModelNames": [
            "Elan Impression 45.1",
            "Elan Impression 45.1 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-9749015-volvopenta-d250-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "engineReferenceId": "volvo_d2_50",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Standard 2020 B Impression 45.1 equipment list only. Catalogue spans 2019-2023; not a claim that all years and options have this engine.",
              "source": {
                "id": "de-elani451-standard",
                "title": "Elan Impression 45.1 Standard 2020 B equipment sheet",
                "url": "https://irp-cdn.multiscreensite.com/0515d615/files/uploaded/I45-1_Standard-EU_2020B.pdf",
                "kind": "manufacturer-specification",
                "locator": "Engine Equipment section",
                "evidence": "The manufacturer equipment list explicitly names Volvo Penta D2-50 with saildrive. The Yanmar option in the summary is only 57 hp and is not identified by inference.",
                "note": "Standard 2020 B Impression 45.1 equipment list only. Catalogue spans 2019-2023; not a claim that all years and options have this engine. The manufacturer equipment list explicitly names Volvo Penta D2-50 with saildrive. The Yanmar option in the summary is only 57 hp and is not identified by inference."
              },
              "sources": [
                {
                  "id": "de-elani451-standard",
                  "title": "Elan Impression 45.1 Standard 2020 B equipment sheet",
                  "url": "https://irp-cdn.multiscreensite.com/0515d615/files/uploaded/I45-1_Standard-EU_2020B.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Engine Equipment section",
                  "evidence": "The manufacturer equipment list explicitly names Volvo Penta D2-50 with saildrive. The Yanmar option in the summary is only 57 hp and is not identified by inference.",
                  "note": "Standard 2020 B Impression 45.1 equipment list only. Catalogue spans 2019-2023; not a claim that all years and options have this engine. The manufacturer equipment list explicitly names Volvo Penta D2-50 with saildrive. The Yanmar option in the summary is only 57 hp and is not identified by inference."
                }
              ],
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 37.5
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-9749015-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "De Valk reference 812510, built 2023, only. Separate observed alternative, not proof of the factory option offered in every earlier year.",
              "source": {
                "id": "de-elani451-75",
                "title": "De Valk: 2023 Elan Impression 45.1, reference 812510",
                "url": "https://www.devalk.nl/en/yachtbrokerage/812510/ELAN-IMPRESSION-45.1.html",
                "kind": "documented-vessel-example",
                "locator": "Vessel year and Machinery",
                "evidence": "The original broker's 2023 Impression 45.1 example explicitly has one Volvo D2-75.",
                "note": "De Valk reference 812510, built 2023, only. Separate observed alternative, not proof of the factory option offered in every earlier year. The original broker's 2023 Impression 45.1 example explicitly has one Volvo D2-75."
              },
              "sources": [
                {
                  "id": "de-elani451-75",
                  "title": "De Valk: 2023 Elan Impression 45.1, reference 812510",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/812510/ELAN-IMPRESSION-45.1.html",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel year and Machinery",
                  "evidence": "The original broker's 2023 Impression 45.1 example explicitly has one Volvo D2-75.",
                  "note": "De Valk reference 812510, built 2023, only. Separate observed alternative, not proof of the factory option offered in every earlier year. The original broker's 2023 Impression 45.1 example explicitly has one Volvo D2-75."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 45.1\" engine model",
              "Elan Impression 45.1 Yanmar Volvo standard specification PDF",
              "Elan Impression 45.1 D2-50 engine broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-9749015-volvopenta-d250-1"
        },
        {
          "name": "Elan Impression 50",
          "boatType": "sailing-yacht",
          "yachtModelId": 829505,
          "sourceModelIds": [
            829505,
            1501522
          ],
          "sourceModelNames": [
            "Elan Impression 50",
            "Elan Impression 50 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-829505-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "DMA Yachting's 2019 Impression 50 in Faro only. Catalogue covers 2015-2019; not the 50.1 and not a universal fit for the earlier years.",
              "source": {
                "id": "de-elani50",
                "title": "DMA Yachting: 2019 Elan Impression 50, Faro",
                "url": "https://www.boats.com/sailing-boats/2019-elan-impression-50-10365070/",
                "kind": "documented-vessel-example",
                "locator": "Seller DMA YACHTING SL; Propulsion / Engine Model",
                "evidence": "The broker's 2019 Elan Impression 50 listing explicitly names Volvo Penta D2-75, 75 hp.",
                "note": "DMA Yachting's 2019 Impression 50 in Faro only. Catalogue covers 2015-2019; not the 50.1 and not a universal fit for the earlier years. The broker's 2019 Elan Impression 50 listing explicitly names Volvo Penta D2-75, 75 hp."
              },
              "sources": [
                {
                  "id": "de-elani50",
                  "title": "DMA Yachting: 2019 Elan Impression 50, Faro",
                  "url": "https://www.boats.com/sailing-boats/2019-elan-impression-50-10365070/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller DMA YACHTING SL; Propulsion / Engine Model",
                  "evidence": "The broker's 2019 Elan Impression 50 listing explicitly names Volvo Penta D2-75, 75 hp.",
                  "note": "DMA Yachting's 2019 Impression 50 in Faro only. Catalogue covers 2015-2019; not the 50.1 and not a universal fit for the earlier years. The broker's 2019 Elan Impression 50 listing explicitly names Volvo Penta D2-75, 75 hp."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 50\" \"engine\" \"D2-75\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-829505-volvopenta-d275-1"
        },
        {
          "name": "Elan Impression 50.1",
          "boatType": "sailing-yacht",
          "yachtModelId": 12895613,
          "sourceModelIds": [
            12895613
          ],
          "sourceModelNames": [
            "Elan Impression 50.1"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-12895613-volvopenta-d275-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Mystic Impression, built 2022, only, outside the catalogue's listed years. Kept as an independently documented older alternative, not a universal year-based rule.",
              "source": {
                "id": "de-elani501-volvo",
                "title": "SYS Yacht Sales: 2022 Elan Impression 50.1 Mystic Impression",
                "url": "https://sysyachtsales.com/yacht-search/2022/elan-impression-50-1-mystic-impression/9761443/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed engine equipment inventory",
                "evidence": "The original broker's 2022 Impression 50.1 example explicitly lists Volvo Penta D2-75 with S-drive, providing an older observed alternative to the current Yanmar specification.",
                "note": "Mystic Impression, built 2022, only, outside the catalogue's listed years. Kept as an independently documented older alternative, not a universal year-based rule. The original broker's 2022 Impression 50.1 example explicitly lists Volvo Penta D2-75 with S-drive, providing an older observed alternative to the current Yanmar specification."
              },
              "sources": [
                {
                  "id": "de-elani501-volvo",
                  "title": "SYS Yacht Sales: 2022 Elan Impression 50.1 Mystic Impression",
                  "url": "https://sysyachtsales.com/yacht-search/2022/elan-impression-50-1-mystic-impression/9761443/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed engine equipment inventory",
                  "evidence": "The original broker's 2022 Impression 50.1 example explicitly lists Volvo Penta D2-75 with S-drive, providing an older observed alternative to the current Yanmar specification.",
                  "note": "Mystic Impression, built 2022, only, outside the catalogue's listed years. Kept as an independently documented older alternative, not a universal year-based rule. The original broker's 2022 Impression 50.1 example explicitly lists Volvo Penta D2-75 with S-drive, providing an older observed alternative to the current Yanmar specification."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-12895613-yanmar-4jh80-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Current manufacturer specification only. Catalogue covers 2020, 2021, 2023 and 2024; not proof that all earlier 50.1 boats had this engine.",
              "source": {
                "id": "de-elani501-standard",
                "title": "Elan Yachts: Impression 50.1 technical specification",
                "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-501",
                "kind": "manufacturer-specification",
                "locator": "Technical Specification / Engine (standard)",
                "evidence": "The manufacturer explicitly names Yanmar 4JH80, 58.8 kW / 80 mhp, as standard in the cited current specification.",
                "note": "Current manufacturer specification only. Catalogue covers 2020, 2021, 2023 and 2024; not proof that all earlier 50.1 boats had this engine. The manufacturer explicitly names Yanmar 4JH80, 58.8 kW / 80 mhp, as standard in the cited current specification."
              },
              "sources": [
                {
                  "id": "de-elani501-standard",
                  "title": "Elan Yachts: Impression 50.1 technical specification",
                  "url": "https://www.elan-yachts.com/en/yacht-lines/impression-line/elan-impression-501",
                  "kind": "manufacturer-specification",
                  "locator": "Technical Specification / Engine (standard)",
                  "evidence": "The manufacturer explicitly names Yanmar 4JH80, 58.8 kW / 80 mhp, as standard in the cited current specification.",
                  "note": "Current manufacturer specification only. Catalogue covers 2020, 2021, 2023 and 2024; not proof that all earlier 50.1 boats had this engine. The manufacturer explicitly names Yanmar 4JH80, 58.8 kW / 80 mhp, as standard in the cited current specification."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Elan Impression 50.1\" \"engine\" \"4JH80\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12895613-volvopenta-d275-1"
        }
      ]
    },
    {
      "name": "Fountaine Pajot",
      "models": [
        {
          "name": "Fountaine Pajot Astrea 42",
          "boatType": "catamaran",
          "yachtModelId": 7043001,
          "sourceModelIds": [
            7043001,
            7888049,
            8651853,
            10249431
          ],
          "sourceModelNames": [
            "Fountaine Pajot Astrea 42",
            "Fountaine Pajot Astrea 42 - 4 + 1 cab.",
            "Fountaine Pajot Astrea 42 - 4 + 2 cab.",
            "Fountaine Pajot Astrea 42 Quatuor"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-7043001-volvopenta-d250-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "engineReferenceId": "volvo_d2_50",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019. 2019 FAVORITE CHILD vessel brochure only; not all Astrea 42 build years. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-astrea",
                "title": "Just Catamarans: 2019 Astrea 42 FAVORITE CHILD",
                "url": "https://justcatamarans.net/wp-content/uploads/2023/02/2019-Fountaine_Pajot-Astrea_42-02182023.pdf",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Information and Features / propulsion",
                "evidence": "The original broker's 2019 Astrea 42 vessel brochure identifies Volvo Penta D2-50 engines.",
                "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019. 2019 FAVORITE CHILD vessel brochure only; not all Astrea 42 build years. Vessel evidence is not universal factory fit. The original broker's 2019 Astrea 42 vessel brochure identifies Volvo Penta D2-50 engines."
              },
              "sources": [
                {
                  "id": "cat-astrea",
                  "title": "Just Catamarans: 2019 Astrea 42 FAVORITE CHILD",
                  "url": "https://justcatamarans.net/wp-content/uploads/2023/02/2019-Fountaine_Pajot-Astrea_42-02182023.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Information and Features / propulsion",
                  "evidence": "The original broker's 2019 Astrea 42 vessel brochure identifies Volvo Penta D2-50 engines.",
                  "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019. 2019 FAVORITE CHILD vessel brochure only; not all Astrea 42 build years. Vessel evidence is not universal factory fit. The original broker's 2019 Astrea 42 vessel brochure identifies Volvo Penta D2-50 engines."
                }
              ],
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 75
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Fountaine Pajot Astrea 42\" \"D2\"",
              "\"Astrea 42\" \"D2-50\" dealer",
              "\"Astrea 42\" \"D2\" engine broker",
              "\"Astrea 42\" \"D2-50\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7043001-volvopenta-d250-2"
        },
        {
          "name": "Fountaine Pajot Aura 51",
          "boatType": "catamaran",
          "yachtModelId": 28466327,
          "sourceModelIds": [
            28466327,
            31563065,
            39050517
          ],
          "sourceModelNames": [
            "Fountaine Pajot Aura 51",
            "Fountaine Pajot Aura 51 - 5 + 1 cab.",
            "Fountaine Pajot Aura 51 - 6 + 1 cab"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-28466327-volvopenta-d275-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023. 2024 Fort Lauderdale vessel only. Conflicting source horsepower cells are not used, and newer Yanmar offerings are not assumed from their power. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-aura",
                "title": "Broker seller listing: 2024 Aura 51, Fort Lauderdale",
                "url": "https://www.boattrader.com/boat/2024-fountaine-pajot-aura-51-10061688/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, Engine 1 and Engine 2",
                "evidence": "Both 2024 propulsion engines are explicitly Volvo D2-75. The page gives inconsistent horsepower across engine rows, so no rating is adopted.",
                "note": "Catalogue build years: 2025, 2024, 2023. 2024 Fort Lauderdale vessel only. Conflicting source horsepower cells are not used, and newer Yanmar offerings are not assumed from their power. Vessel evidence is not universal factory fit. Both 2024 propulsion engines are explicitly Volvo D2-75. The page gives inconsistent horsepower across engine rows, so no rating is adopted."
              },
              "sources": [
                {
                  "id": "cat-aura",
                  "title": "Broker seller listing: 2024 Aura 51, Fort Lauderdale",
                  "url": "https://www.boattrader.com/boat/2024-fountaine-pajot-aura-51-10061688/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, Engine 1 and Engine 2",
                  "evidence": "Both 2024 propulsion engines are explicitly Volvo D2-75. The page gives inconsistent horsepower across engine rows, so no rating is adopted.",
                  "note": "Catalogue build years: 2025, 2024, 2023. 2024 Fort Lauderdale vessel only. Conflicting source horsepower cells are not used, and newer Yanmar offerings are not assumed from their power. Vessel evidence is not universal factory fit. Both 2024 propulsion engines are explicitly Volvo D2-75. The page gives inconsistent horsepower across engine rows, so no rating is adopted."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Fountaine Pajot Aura 51\" \"engine model\"",
              "\"Fountaine Pajot Aura 51\" \"D2-75\" site:wardyachtsales.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-28466327-volvopenta-d275-2"
        },
        {
          "name": "Fountaine Pajot Elba 45",
          "boatType": "catamaran",
          "yachtModelId": 10238913,
          "sourceModelIds": [
            10238913,
            10321531,
            11099674,
            12625376,
            12782052,
            70718814
          ],
          "sourceModelNames": [
            "Fountaine Pajot Elba 45 - 3 + 1 cab.",
            "Fountaine Pajot Elba 45 - 3 cab.",
            "Fountaine Pajot Elba 45 - 4 + 1 cab.",
            "Fountaine Pajot Elba 45 - 4 + 2 cab.",
            "Fountaine Pajot Elba 45 - 4 cab.",
            "Fountaine Pajot Elba 45 - 5 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-10238913-volvopenta-d250-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "engineReferenceId": "volvo_d2_50",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020. Grand Large manufacturer inventory edition hosted by Canet Boat Plaisance; not a guarantee for every 2020-2025 hull. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-elba",
                "title": "Fountaine Pajot Elba 45 Grand Large inventory",
                "url": "https://canetboatplaisance.com/wp-content/uploads/2022/02/inventaire-fr-elba-45-fountaine-pajot.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 12/15, C-1 Moteurs et equipements",
                "evidence": "The manufacturer inventory distributed by Canet Boat Plaisance explicitly lists two Volvo D2-50 saildrive engines.",
                "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020. Grand Large manufacturer inventory edition hosted by Canet Boat Plaisance; not a guarantee for every 2020-2025 hull. Vessel evidence is not universal factory fit. The manufacturer inventory distributed by Canet Boat Plaisance explicitly lists two Volvo D2-50 saildrive engines."
              },
              "sources": [
                {
                  "id": "cat-elba",
                  "title": "Fountaine Pajot Elba 45 Grand Large inventory",
                  "url": "https://canetboatplaisance.com/wp-content/uploads/2022/02/inventaire-fr-elba-45-fountaine-pajot.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 12/15, C-1 Moteurs et equipements",
                  "evidence": "The manufacturer inventory distributed by Canet Boat Plaisance explicitly lists two Volvo D2-50 saildrive engines.",
                  "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020. Grand Large manufacturer inventory edition hosted by Canet Boat Plaisance; not a guarantee for every 2020-2025 hull. Vessel evidence is not universal factory fit. The manufacturer inventory distributed by Canet Boat Plaisance explicitly lists two Volvo D2-50 saildrive engines."
                }
              ],
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 75
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Fountaine Pajot Elba 45\" \"D2\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10238913-volvopenta-d250-2"
        },
        {
          "name": "Fountaine Pajot FP 44",
          "boatType": "catamaran",
          "yachtModelId": 59311624,
          "sourceModelIds": [
            59311624,
            61903208
          ],
          "sourceModelNames": [
            "Fountaine Pajot FP 44 Quatuor - 4 + 2 cab.",
            "Fountaine Pajot FP 44 Quatuor - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-59311624-yanmar-4jh57ce-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57-CE",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026. BJ Marine's 2026 stock offer only; preserve CE suffix. No transfer from Helia 44 or another similarly numbered design. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-fp44",
                "title": "BJ Marine: 2026 Fountaine Pajot FP44 seller specification",
                "url": "https://uk.boats.com/sailing-boats/2026-fountaine-pajot-fp44-10360829/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, both engine entries",
                "evidence": "The BJ Marine 2026 FP44 listing specifies two Yanmar 4JH57-CE engines, 57 hp each.",
                "note": "Catalogue build years: 2026. BJ Marine's 2026 stock offer only; preserve CE suffix. No transfer from Helia 44 or another similarly numbered design. Vessel evidence is not universal factory fit. The BJ Marine 2026 FP44 listing specifies two Yanmar 4JH57-CE engines, 57 hp each."
              },
              "sources": [
                {
                  "id": "cat-fp44",
                  "title": "BJ Marine: 2026 Fountaine Pajot FP44 seller specification",
                  "url": "https://uk.boats.com/sailing-boats/2026-fountaine-pajot-fp44-10360829/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, both engine entries",
                  "evidence": "The BJ Marine 2026 FP44 listing specifies two Yanmar 4JH57-CE engines, 57 hp each.",
                  "note": "Catalogue build years: 2026. BJ Marine's 2026 stock offer only; preserve CE suffix. No transfer from Helia 44 or another similarly numbered design. Vessel evidence is not universal factory fit. The BJ Marine 2026 FP44 listing specifies two Yanmar 4JH57-CE engines, 57 hp each."
                }
              ],
              "engineFamilyReference": {
                "family": "4JH57",
                "reportedModel": "4JH57-CE",
                "referenceModel": "4JH57",
                "referenceId": "yanmar_4jh57",
                "basis": "reviewed-base-engine-family",
                "note": "Base-engine family reference: Yanmar 4JH57, using its digitized manufacturer fuel graph at 41.9 kW / 3000 RPM. The maker also lists the saildrive 4JH57-C at that rating. The vessel's CE label is retained in the research data. This is a representative base-engine curve, not a measured FP44 test or confirmation of identical CE calibration. Both engines are included.",
                "sources": [
                  {
                    "title": "YANMAR SD60 Operation Manual, 0ASDM-EN0023, May 2018",
                    "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0023_2018.05.pdf",
                    "kind": "manufacturer-document",
                    "locator": "Specifications, printed page 37 / PDF page 41, Applicable engine model rows",
                    "evidence": "3JH5CE and 3JH5AE-C are explicitly listed at 28.7 kW / 3000 RPM, and 4JH57-C at 41.9 kW / 3000 RPM. This supports a family-level rating reference, not proof that every ACE/CE commercial label is a universal manufacturer alias or has identical boat fuel use.",
                    "access": "Manufacturer-hosted PDF and model-specific indexed table retrieved on 2026-10-17."
                  }
                ]
              },
              "selectionPower": {
                "kw": 41.92342875,
                "sources": [
                  "https://uk.boats.com/sailing-boats/2026-fountaine-pajot-fp44-10360829/"
                ],
                "basis": "documented-engine-rating",
                "approximate": false,
                "totalKw": 83.8468575
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Fountaine Pajot FP 44\" engine model",
              "\"Fountaine Pajot FP44\" \"4JH57-CE\" site:bjmarine.net"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-59311624-yanmar-4jh57ce-2"
        },
        {
          "name": "Fountaine Pajot Isla 40",
          "boatType": "catamaran",
          "yachtModelId": 12781883,
          "sourceModelIds": [
            12781883
          ],
          "sourceModelNames": [
            "Fountaine Pajot Isla 40 - 4 + 1 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-12781883-volvopenta-d120-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-20",
              "engineDisplayName": "Volvo Penta D1-20",
              "engineReferenceId": "volvo_d1_20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; available configuration, not an inferred standard. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-isla",
                "title": "Fountaine Pajot Isla 40 owner's manual",
                "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                "kind": "manufacturer-manual",
                "locator": "Page 7, Characteristics / Inboard engines table",
                "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                "note": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; available configuration, not an inferred standard. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
              },
              "sources": [
                {
                  "id": "cat-isla",
                  "title": "Fountaine Pajot Isla 40 owner's manual",
                  "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Page 7, Characteristics / Inboard engines table",
                  "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                  "note": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; available configuration, not an inferred standard. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
                }
              ],
              "selectionPower": {
                "kw": 13.8,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 27.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-12781883-yanmar-3ym20-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; malformed power extraction in this row is not adopted. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-isla",
                "title": "Fountaine Pajot Isla 40 owner's manual",
                "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                "kind": "manufacturer-manual",
                "locator": "Page 7, Characteristics / Inboard engines table",
                "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                "note": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; malformed power extraction in this row is not adopted. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
              },
              "sources": [
                {
                  "id": "cat-isla",
                  "title": "Fountaine Pajot Isla 40 owner's manual",
                  "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Page 7, Characteristics / Inboard engines table",
                  "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                  "note": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; malformed power extraction in this row is not adopted. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 30.6
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-12781883-volvopenta-d130-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; specific boats require inspection. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-isla",
                "title": "Fountaine Pajot Isla 40 owner's manual",
                "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                "kind": "manufacturer-manual",
                "locator": "Page 7, Characteristics / Inboard engines table",
                "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                "note": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; specific boats require inspection. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
              },
              "sources": [
                {
                  "id": "cat-isla",
                  "title": "Fountaine Pajot Isla 40 owner's manual",
                  "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Page 7, Characteristics / Inboard engines table",
                  "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                  "note": "Catalogue build years: 2022. Isla 40 manufacturer's inboard-engine table; specific boats require inspection. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-12781883-yanmar-3ym30ae-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2022. Isla 40 manufacturer's table writes 3YM30 AE and gives maximum rate 3200 rpm. AE suffix and rating are retained; not interchangeable with 3YM30. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-isla",
                "title": "Fountaine Pajot Isla 40 owner's manual",
                "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                "kind": "manufacturer-manual",
                "locator": "Page 7, Characteristics / Inboard engines table",
                "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                "note": "Catalogue build years: 2022. Isla 40 manufacturer's table writes 3YM30 AE and gives maximum rate 3200 rpm. AE suffix and rating are retained; not interchangeable with 3YM30. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
              },
              "sources": [
                {
                  "id": "cat-isla",
                  "title": "Fountaine Pajot Isla 40 owner's manual",
                  "url": "https://manuals.plus/m/a07879c939dcb569bc4636c537cc7575bc4311273d7b311c9b599f098a358d2d.pdf",
                  "kind": "manufacturer-manual",
                  "locator": "Page 7, Characteristics / Inboard engines table",
                  "evidence": "The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm.",
                  "note": "Catalogue build years: 2022. Isla 40 manufacturer's table writes 3YM30 AE and gives maximum rate 3200 rpm. AE suffix and rating are retained; not interchangeable with 3YM30. Vessel evidence is not universal factory fit. The original manufacturer manual lists twin Volvo D1-20 and D1-30 and twin Yanmar 3YM20 and 3YM30 AE configurations; its AE row states maximum 3200 rpm."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 42.6
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Isla 40\" \"D1-30\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12781883-volvopenta-d120-2"
        },
        {
          "name": "Fountaine Pajot Lucia 40",
          "boatType": "catamaran",
          "yachtModelId": 1049039,
          "sourceModelIds": [
            1049039,
            1289943
          ],
          "sourceModelNames": [
            "Fountaine Pajot Lucia 40 - 3 cab.",
            "Fountaine Pajot Lucia 40 - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-1049039-volvopenta-d130-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2019, 2017, 2016. Atalanta Marine's 2019 Lucia 40 vessel only; does not establish all 2016/2017 hulls. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lucia-2019",
                "title": "Atalanta Marine: 2019 Fountaine Pajot Lucia 40 vessel brochure",
                "url": "https://atalantamarine.com/wp-content/uploads/2025/03/FOUNTAINE-PAJOT-LUCIA-40-2019.pdf",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed yacht specification / engines",
                "evidence": "The broker's 2019 vessel brochure explicitly identifies two Volvo Penta D1-30 engines.",
                "note": "Catalogue build years: 2019, 2017, 2016. Atalanta Marine's 2019 Lucia 40 vessel only; does not establish all 2016/2017 hulls. Vessel evidence is not universal factory fit. The broker's 2019 vessel brochure explicitly identifies two Volvo Penta D1-30 engines."
              },
              "sources": [
                {
                  "id": "cat-lucia-2019",
                  "title": "Atalanta Marine: 2019 Fountaine Pajot Lucia 40 vessel brochure",
                  "url": "https://atalantamarine.com/wp-content/uploads/2025/03/FOUNTAINE-PAJOT-LUCIA-40-2019.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed yacht specification / engines",
                  "evidence": "The broker's 2019 vessel brochure explicitly identifies two Volvo Penta D1-30 engines.",
                  "note": "Catalogue build years: 2019, 2017, 2016. Atalanta Marine's 2019 Lucia 40 vessel only; does not establish all 2016/2017 hulls. Vessel evidence is not universal factory fit. The broker's 2019 vessel brochure explicitly identifies two Volvo Penta D1-30 engines."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lucia 40\" \"D1-30\"",
              "\"Lucia 40\" \"2019\" \"D1-30\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1049039-volvopenta-d130-2"
        },
        {
          "name": "Fountaine Pajot MY 37",
          "boatType": "catamaran",
          "yachtModelId": 1163421,
          "sourceModelIds": [
            1163421
          ],
          "sourceModelNames": [
            "Fountaine Pajot MY 37"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-1163421-volvopenta-d3220-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-220",
              "engineDisplayName": "Volvo Penta D3-220",
              "engineReferenceId": "review_volvopenta_d3220",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2015. De Valk vessel with engines installed in 2017, outside the catalogue's 2015/2018 build years; no cross-year factory assertion. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-my37",
                "title": "De Valk: Fountaine Pajot MY 37, reference 811803",
                "url": "https://www.devalk.nl/en/brochure_full/811803/FOUNTAINE-PAJOT-MY-37.html",
                "kind": "documented-vessel-example",
                "locator": "MACHINERY, page 3",
                "evidence": "The broker explicitly lists two Volvo D3-220 engines, 220 hp, installed in 2017.",
                "note": "Catalogue build years: 2018, 2015. De Valk vessel with engines installed in 2017, outside the catalogue's 2015/2018 build years; no cross-year factory assertion. Vessel evidence is not universal factory fit. The broker explicitly lists two Volvo D3-220 engines, 220 hp, installed in 2017."
              },
              "sources": [
                {
                  "id": "cat-my37",
                  "title": "De Valk: Fountaine Pajot MY 37, reference 811803",
                  "url": "https://www.devalk.nl/en/brochure_full/811803/FOUNTAINE-PAJOT-MY-37.html",
                  "kind": "documented-vessel-example",
                  "locator": "MACHINERY, page 3",
                  "evidence": "The broker explicitly lists two Volvo D3-220 engines, 220 hp, installed in 2017.",
                  "note": "Catalogue build years: 2018, 2015. De Valk vessel with engines installed in 2017, outside the catalogue's 2015/2018 build years; no cross-year factory assertion. Vessel evidence is not universal factory fit. The broker explicitly lists two Volvo D3-220 engines, 220 hp, installed in 2017."
                }
              ],
              "selectionPower": {
                "kw": 162,
                "sources": [
                  "https://sra-moteur.com/uploads/catalogue/produits/documentations/d3-220-d3-220.pdf",
                  "https://manualzilla.com/doc/6385253/manuel-d-instructions"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 324
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"MY 37\" \"D3-220\" Fountaine"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1163421-volvopenta-d3220-2"
        },
        {
          "name": "Fountaine Pajot MY4.S",
          "boatType": "catamaran",
          "yachtModelId": 23569313,
          "sourceModelIds": [
            23569313
          ],
          "sourceModelNames": [
            "Fountaine Pajot MY4.S"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-23569313-yanmar-4lv250-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV250",
              "engineDisplayName": "Yanmar 4LV250",
              "engineReferenceId": "review_yanmar_4lv250",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2022. MarineMax's 2022 VINO FLORIDA vessel only; distinct from MY 37 and MY5. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-my4s",
                "title": "MarineMax: 2022 MY4.S VINO FLORIDA",
                "url": "https://inventory.marinemax.com/products/2022-fountaine-pajot-my-4-s",
                "kind": "documented-vessel-example",
                "locator": "Description / Notable Features",
                "evidence": "MarineMax's own listing identifies twin Yanmar 4LV250 propulsion engines, 250 hp each, on its 2022 stock vessel.",
                "note": "Catalogue build years: 2022. MarineMax's 2022 VINO FLORIDA vessel only; distinct from MY 37 and MY5. Vessel evidence is not universal factory fit. MarineMax's own listing identifies twin Yanmar 4LV250 propulsion engines, 250 hp each, on its 2022 stock vessel."
              },
              "sources": [
                {
                  "id": "cat-my4s",
                  "title": "MarineMax: 2022 MY4.S VINO FLORIDA",
                  "url": "https://inventory.marinemax.com/products/2022-fountaine-pajot-my-4-s",
                  "kind": "documented-vessel-example",
                  "locator": "Description / Notable Features",
                  "evidence": "MarineMax's own listing identifies twin Yanmar 4LV250 propulsion engines, 250 hp each, on its 2022 stock vessel.",
                  "note": "Catalogue build years: 2022. MarineMax's 2022 VINO FLORIDA vessel only; distinct from MY 37 and MY5. Vessel evidence is not universal factory fit. MarineMax's own listing identifies twin Yanmar 4LV250 propulsion engines, 250 hp each, on its 2022 stock vessel."
                }
              ],
              "selectionPower": {
                "kw": 184,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV230-250_A4_2021_1018_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 368
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Fountaine Pajot MY4.S\" \"4LV\"",
              "\"MY4.S\" \"4LV250\" dealer",
              "\"MY4.S\" \"4LV250\"",
              "\"MY4.S\" \"4LV250\" broker dealer Yanmar",
              "\"Fountaine Pajot MY4.S\" \"2022\" \"4LV250\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23569313-yanmar-4lv250-2"
        },
        {
          "name": "Fountaine Pajot MY5",
          "boatType": "catamaran",
          "yachtModelId": 23569310,
          "sourceModelIds": [
            23569310
          ],
          "sourceModelNames": [
            "Fountaine Pajot MY5"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-23569310-volvopenta-d6300-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D6-300",
              "engineDisplayName": "Volvo Penta D6-300 (IPS400)",
              "engineReferenceId": "review_volvo_d6ips400",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2022. Baotic's 2022 MY5 listing names IPS400 D6-300; record the D6-300 engine, not IPS400 alone. Not automatically the MY40 or MY6. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-my5",
                "title": "Baotic Yachting: 2022 Fountaine Pajot MY5 seller listing",
                "url": "https://www.boatshop24.com/de/boot/2022-fountaine-pajot-my5-7868354/",
                "kind": "documented-vessel-example",
                "locator": "Seller Baotic Yachting / Motoranzeige",
                "evidence": "The official dealer's 2022 vessel listing explicitly names Volvo Penta IPS400 D6-300 and 600 hp total; D6-300 is the engine identity, IPS400 the propulsion package.",
                "note": "Catalogue build years: 2022. Baotic's 2022 MY5 listing names IPS400 D6-300; record the D6-300 engine, not IPS400 alone. Not automatically the MY40 or MY6. Vessel evidence is not universal factory fit. The official dealer's 2022 vessel listing explicitly names Volvo Penta IPS400 D6-300 and 600 hp total; D6-300 is the engine identity, IPS400 the propulsion package."
              },
              "sources": [
                {
                  "id": "cat-my5",
                  "title": "Baotic Yachting: 2022 Fountaine Pajot MY5 seller listing",
                  "url": "https://www.boatshop24.com/de/boot/2022-fountaine-pajot-my5-7868354/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller Baotic Yachting / Motoranzeige",
                  "evidence": "The official dealer's 2022 vessel listing explicitly names Volvo Penta IPS400 D6-300 and 600 hp total; D6-300 is the engine identity, IPS400 the propulsion package.",
                  "note": "Catalogue build years: 2022. Baotic's 2022 MY5 listing names IPS400 D6-300; record the D6-300 engine, not IPS400 alone. Not automatically the MY40 or MY6. Vessel evidence is not universal factory fit. The official dealer's 2022 vessel listing explicitly names Volvo Penta IPS400 D6-300 and 600 hp total; D6-300 is the engine identity, IPS400 the propulsion package."
                }
              ],
              "engineFamilyReference": {
                "family": "D6-300 (IPS400)",
                "reportedModel": "D6-300",
                "referenceModel": "D6-IPS400",
                "referenceId": "review_volvo_d6ips400",
                "basis": "reviewed-base-engine-family",
                "note": "Base-engine family reference: the documented MY5 IPS400 / D6-300 label uses the digitized D6-IPS400 manufacturer fuel graph, 221 kW at 3300 RPM. This keeps the correct six-cylinder IPS application rather than the different 3500-RPM inboard reference. It is a representative base-engine graph, not a published numeric table or a measured MY5 test. Both engines are included.",
                "sources": [
                  {
                    "title": "Volvo Penta Inboard Performance System D6-IPS 400/450/500/600/650, English 12-2019",
                    "url": "https://vp-service.dk/wp-content/uploads/2024/02/297_47711958-en-d6-400-450-500-600-650-5.pdf",
                    "kind": "manufacturer-document",
                    "locator": "PDF page 1: Technical Data, D6-IPS400 column, crankshaft/propshaft power, speed, displacement and rating; fuel-chart caption and duty footnote. Page 2: printed edition footer.",
                    "evidence": "D6-IPS400: 221 kW crankshaft, 212 kW propshaft, 3300 RPM, six cylinders, 5.5 litres, R4. Fuel is shown only as an exponent-2.5 calculated-propeller-load chart; neither a numeric fuel table nor a printed numeric rated-fuel endpoint is supplied.",
                    "access": "Retrieved successfully over HTTPS on 2026-10-17. Original Volvo Penta leaflet on VP-Service mirror; both complete pages extracted, rendered in memory and visually inspected. Printed date is 12-2019, not the URL upload date.",
                    "sha256": "a60c60bf05f7b3c47862fafa98d8de7803484cac48c7f29ac61c8a3c1ca74c70"
                  }
                ]
              },
              "selectionPower": {
                "kw": 220.649625,
                "sources": [
                  "https://www.boatshop24.com/de/boot/2022-fountaine-pajot-my5-7868354/"
                ],
                "basis": "documented-engine-rating",
                "approximate": false,
                "totalKw": 441.29925
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Fountaine Pajot MY5\" \"D6\"",
              "\"MY5\" \"D6\" Fountaine dealer"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23569310-volvopenta-d6300-2"
        },
        {
          "name": "Fountaine Pajot Saba 50",
          "boatType": "catamaran",
          "yachtModelId": 829525,
          "sourceModelIds": [
            829525,
            2205211
          ],
          "sourceModelNames": [
            "Fountaine Pajot Saba 50 - 4 + 2 cab.",
            "Fountaine Pajot Saba 50 - 6 + 1 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-829525-yanmar-4jh5ce-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH5-CE",
              "engineDisplayName": "Yanmar 4JH5-CE",
              "engineReferenceId": "review_yanmar_4jh5ce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; model punctuation retained as printed, not replaced with 4JH57. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-saba",
                "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                "kind": "manufacturer-manual",
                "locator": "Technical Information / Characteristics / Inboard engines",
                "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; model punctuation retained as printed, not replaced with 4JH57. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
              },
              "sources": [
                {
                  "id": "cat-saba",
                  "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                  "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                  "kind": "manufacturer-manual",
                  "locator": "Technical Information / Characteristics / Inboard engines",
                  "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                  "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; model punctuation retained as printed, not replaced with 4JH57. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 79.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-829525-volvopenta-d255-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55",
              "engineDisplayName": "Volvo Penta D2-55",
              "engineReferenceId": "volvo_d2_55",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table; no standard/option status inferred. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-saba",
                "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                "kind": "manufacturer-manual",
                "locator": "Technical Information / Characteristics / Inboard engines",
                "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table; no standard/option status inferred. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
              },
              "sources": [
                {
                  "id": "cat-saba",
                  "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                  "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                  "kind": "manufacturer-manual",
                  "locator": "Technical Information / Characteristics / Inboard engines",
                  "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                  "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table; no standard/option status inferred. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-55.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 82
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-829525-volvopenta-d275-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-saba",
                "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                "kind": "manufacturer-manual",
                "locator": "Technical Information / Characteristics / Inboard engines",
                "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
              },
              "sources": [
                {
                  "id": "cat-saba",
                  "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                  "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                  "kind": "manufacturer-manual",
                  "locator": "Technical Information / Characteristics / Inboard engines",
                  "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                  "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual's inboard-engine table. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-829525-yanmar-4jh4tce-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4TCE",
              "engineDisplayName": "Yanmar 4JH4TCE",
              "engineReferenceId": "review_yanmar_4jh4tce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; exact TCE variant retained. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-saba",
                "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                "kind": "manufacturer-manual",
                "locator": "Technical Information / Characteristics / Inboard engines",
                "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; exact TCE variant retained. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
              },
              "sources": [
                {
                  "id": "cat-saba",
                  "title": "Fountaine Pajot Saba 50 owner's manual, 15 May 2016",
                  "url": "https://manualzz.com/doc/44118206/fountaine-pajot-saba-50-user-manual",
                  "kind": "manufacturer-manual",
                  "locator": "Technical Information / Characteristics / Inboard engines",
                  "evidence": "The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings.",
                  "note": "Catalogue build years: 2018, 2017, 2016. 15 May 2016 Saba 50 manual; exact TCE variant retained. Vessel evidence is not universal factory fit. The manufacturer table lists twin Volvo D2-55, Yanmar 4JH5-CE, Volvo D2-75 and Yanmar 4JH4TCE configurations. It is a reproduced manufacturer manual, not inferred from ratings."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110.4
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Fountaine Pajot Saba 50\" \"D2-75\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-829525-yanmar-4jh5ce-2"
        },
        {
          "name": "Fountaine Pajot Saona 47",
          "boatType": "catamaran",
          "yachtModelId": 2876277,
          "sourceModelIds": [
            2876277
          ],
          "sourceModelNames": [
            "Fountaine Pajot Saona 47 Quintet - 5 + 1 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-2876277-volvopenta-d260-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-60",
              "engineDisplayName": "Volvo Penta D2-60",
              "engineReferenceId": "volvo_d2_60",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2020, 2019, 2018, 2017. 2020 AILA Maestro vessel, hull 120, only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-saona",
                "title": "Ward Yacht Sales: 2020 Saona 47 AILA",
                "url": "https://www.wardyachtsales.com/yachts-for-sale/2020-fountaine-pajot-saona-47-fort-pierce-florida-2850622",
                "kind": "documented-vessel-example",
                "locator": "Engines (twin), Volvo D2-60 #1 and #2",
                "evidence": "The original broker identifies two Volvo D2-60 engines, 60 hp each, on the 2020 Maestro vessel.",
                "note": "Catalogue build years: 2020, 2019, 2018, 2017. 2020 AILA Maestro vessel, hull 120, only. Vessel evidence is not universal factory fit. The original broker identifies two Volvo D2-60 engines, 60 hp each, on the 2020 Maestro vessel."
              },
              "sources": [
                {
                  "id": "cat-saona",
                  "title": "Ward Yacht Sales: 2020 Saona 47 AILA",
                  "url": "https://www.wardyachtsales.com/yachts-for-sale/2020-fountaine-pajot-saona-47-fort-pierce-florida-2850622",
                  "kind": "documented-vessel-example",
                  "locator": "Engines (twin), Volvo D2-60 #1 and #2",
                  "evidence": "The original broker identifies two Volvo D2-60 engines, 60 hp each, on the 2020 Maestro vessel.",
                  "note": "Catalogue build years: 2020, 2019, 2018, 2017. 2020 AILA Maestro vessel, hull 120, only. Vessel evidence is not universal factory fit. The original broker identifies two Volvo D2-60 engines, 60 hp each, on the 2020 Maestro vessel."
                }
              ],
              "selectionPower": {
                "kw": 44,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 88
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Saona 47\" \"D2-60\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-2876277-volvopenta-d260-2"
        }
      ]
    },
    {
      "name": "Hanse",
      "models": [
        {
          "name": "Hanse 345",
          "boatType": "sailing-yacht",
          "yachtModelId": 523270,
          "sourceModelIds": [
            523270
          ],
          "sourceModelNames": [
            "Hanse 345"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-523270-yanmar-3ym30ae-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Dave Townley Yachts' 2017 Hanse 345; matches registry year 2017. The broker describes an upgraded installation, not every 345's standard. Preserve AE suffix.",
              "source": {
                "id": "hanse-mixed-h345-2017",
                "title": "Dave Townley Yachts: 2017 Hanse 345",
                "url": "https://davetownleyyachts.com/2017-hanse-345",
                "kind": "documented-vessel-example",
                "locator": "ENGINE",
                "evidence": "Selling broker lists a Yanmar 3YM30AE diesel on this 2017 Hanse 345 and calls it the larger engine upgrade.",
                "note": "Only Dave Townley Yachts' 2017 Hanse 345; matches registry year 2017. The broker describes an upgraded installation, not every 345's standard. Preserve AE suffix. Selling broker lists a Yanmar 3YM30AE diesel on this 2017 Hanse 345 and calls it the larger engine upgrade."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h345-2017",
                  "title": "Dave Townley Yachts: 2017 Hanse 345",
                  "url": "https://davetownleyyachts.com/2017-hanse-345",
                  "kind": "documented-vessel-example",
                  "locator": "ENGINE",
                  "evidence": "Selling broker lists a Yanmar 3YM30AE diesel on this 2017 Hanse 345 and calls it the larger engine upgrade.",
                  "note": "Only Dave Townley Yachts' 2017 Hanse 345; matches registry year 2017. The broker describes an upgraded installation, not every 345's standard. Preserve AE suffix. Selling broker lists a Yanmar 3YM30AE diesel on this 2017 Hanse 345 and calls it the larger engine upgrade."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 345\" \"engine\" \"3YM\"",
              "\"Hanse 345\" \"engine\" \"Yanmar\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-523270-yanmar-3ym30ae-1"
        },
        {
          "name": "Hanse 348",
          "boatType": "sailing-yacht",
          "yachtModelId": 7269811,
          "sourceModelIds": [
            7269811
          ],
          "sourceModelNames": [
            "Hanse 348- 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-7269811-yanmar-3ym30ae-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only XBOAT's 2021 Hanse 348. Registry year is 2024; this is same named design but not proof for the 2024 charter boat or every layout. AE suffix retained.",
              "source": {
                "id": "hanse-mixed-h348-2021",
                "title": "XBOAT: 2021 Hanse 348",
                "url": "https://www.xboat.fr/6007-HANSE_HANSE-348.html",
                "kind": "documented-vessel-example",
                "locator": "FICHE TECHNIQUE / Moteurs",
                "evidence": "The original broker specifies one Yanmar 3YM30AE diesel in its 2021 Hanse 348.",
                "note": "Only XBOAT's 2021 Hanse 348. Registry year is 2024; this is same named design but not proof for the 2024 charter boat or every layout. AE suffix retained. The original broker specifies one Yanmar 3YM30AE diesel in its 2021 Hanse 348."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h348-2021",
                  "title": "XBOAT: 2021 Hanse 348",
                  "url": "https://www.xboat.fr/6007-HANSE_HANSE-348.html",
                  "kind": "documented-vessel-example",
                  "locator": "FICHE TECHNIQUE / Moteurs",
                  "evidence": "The original broker specifies one Yanmar 3YM30AE diesel in its 2021 Hanse 348.",
                  "note": "Only XBOAT's 2021 Hanse 348. Registry year is 2024; this is same named design but not proof for the 2024 charter boat or every layout. AE suffix retained. The original broker specifies one Yanmar 3YM30AE diesel in its 2021 Hanse 348."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-7269811-yanmar-3ym30-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only BOATERY's two-cabin boat listed as model year 2024; narrative separately gives first launch 2022, so year is inconsistent. Registry's source label is three-cabin 2024. Published model lacks AE; no missing suffix is supplied or equivalence asserted.",
              "source": {
                "id": "hanse-mixed-h348-2024",
                "title": "BOATERY: Hanse 348 two-cabin vessel",
                "url": "https://boatery.dk/vare/hanse-348-2-cabin/",
                "kind": "documented-vessel-example",
                "locator": "Baddetaljer; Yderligere information; Motor/elinstallationer",
                "evidence": "Broker lists one Yanmar 3YM30, 29 hp and model year 2024; narrative separately says first launched 2022. AE suffix is not published.",
                "note": "Only BOATERY's two-cabin boat listed as model year 2024; narrative separately gives first launch 2022, so year is inconsistent. Registry's source label is three-cabin 2024. Published model lacks AE; no missing suffix is supplied or equivalence asserted. Broker lists one Yanmar 3YM30, 29 hp and model year 2024; narrative separately says first launched 2022. AE suffix is not published."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h348-2024",
                  "title": "BOATERY: Hanse 348 two-cabin vessel",
                  "url": "https://boatery.dk/vare/hanse-348-2-cabin/",
                  "kind": "documented-vessel-example",
                  "locator": "Baddetaljer; Yderligere information; Motor/elinstallationer",
                  "evidence": "Broker lists one Yanmar 3YM30, 29 hp and model year 2024; narrative separately says first launched 2022. AE suffix is not published.",
                  "note": "Only BOATERY's two-cabin boat listed as model year 2024; narrative separately gives first launch 2022, so year is inconsistent. Registry's source label is three-cabin 2024. Published model lacks AE; no missing suffix is supplied or equivalence asserted. Broker lists one Yanmar 3YM30, 29 hp and model year 2024; narrative separately says first launched 2022. AE suffix is not published."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 348\" \"engine\" \"3YM\"",
              "\"Hanse 348\" \"3YM30\"",
              "\"Hanse 348\" \"2024\" Yanmar engine model",
              "\"Hanse 348\" \"3YM30\" site:boatery.dk"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7269811-yanmar-3ym30ae-1"
        },
        {
          "name": "Hanse 360",
          "boatType": "sailing-yacht",
          "yachtModelId": 50679636,
          "sourceModelIds": [
            50679636
          ],
          "sourceModelNames": [
            "Hanse 360"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-50679636-yanmar-3jh40-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Hanse Vertriebs' 2025 stock Hanse 360, matching registry year 2025. Listing calls this stronger-engine extra. Manual hanse-mixed-h360-electric also offers power-only diesel/electric choices, but gives no electric motor model to record.",
              "source": {
                "id": "hanse-mixed-h360-2025",
                "title": "Hanse Vertriebs: 2025 Hanse 360 stock boat",
                "url": "https://www.yachtworld.com/yacht/2025-hanse-360-9834595/",
                "kind": "documented-vessel-example",
                "locator": "Seller description / Engine",
                "evidence": "Hanse Vertriebs identifies Yanmar 3JH40 in this 2025 stock boat and describes it as the stronger-engine extra.",
                "note": "Only Hanse Vertriebs' 2025 stock Hanse 360, matching registry year 2025. Listing calls this stronger-engine extra. Manual hanse-mixed-h360-electric also offers power-only diesel/electric choices, but gives no electric motor model to record. Hanse Vertriebs identifies Yanmar 3JH40 in this 2025 stock boat and describes it as the stronger-engine extra."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h360-2025",
                  "title": "Hanse Vertriebs: 2025 Hanse 360 stock boat",
                  "url": "https://www.yachtworld.com/yacht/2025-hanse-360-9834595/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller description / Engine",
                  "evidence": "Hanse Vertriebs identifies Yanmar 3JH40 in this 2025 stock boat and describes it as the stronger-engine extra.",
                  "note": "Only Hanse Vertriebs' 2025 stock Hanse 360, matching registry year 2025. Listing calls this stronger-engine extra. Manual hanse-mixed-h360-electric also offers power-only diesel/electric choices, but gives no electric motor model to record. Hanse Vertriebs identifies Yanmar 3JH40 in this 2025 stock boat and describes it as the stronger-engine extra."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 360\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-50679636-yanmar-3jh40-1"
        },
        {
          "name": "Hanse 385",
          "boatType": "sailing-yacht",
          "yachtModelId": 484234,
          "sourceModelIds": [
            484234
          ],
          "sourceModelNames": [
            "Hanse 385"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-484234-volvopenta-d130-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only BoatAgent's 2013 Tyreso vessel. Registry also covers 2012 and 2015, not confirmed by this vessel example.",
              "source": {
                "id": "hanse-mixed-h385-2013",
                "title": "BoatAgent: 2013 Hanse 385, Tyreso",
                "url": "https://boatagent.com/boats/hanse-385-tyreso-2013/",
                "kind": "documented-vessel-example",
                "locator": "Fakta Hanse 385 -2013 / KEY FACTS",
                "evidence": "Original broker identifies Volvo Penta D1-30 propulsion on this 2013 Hanse 385.",
                "note": "Only BoatAgent's 2013 Tyreso vessel. Registry also covers 2012 and 2015, not confirmed by this vessel example. Original broker identifies Volvo Penta D1-30 propulsion on this 2013 Hanse 385."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h385-2013",
                  "title": "BoatAgent: 2013 Hanse 385, Tyreso",
                  "url": "https://boatagent.com/boats/hanse-385-tyreso-2013/",
                  "kind": "documented-vessel-example",
                  "locator": "Fakta Hanse 385 -2013 / KEY FACTS",
                  "evidence": "Original broker identifies Volvo Penta D1-30 propulsion on this 2013 Hanse 385.",
                  "note": "Only BoatAgent's 2013 Tyreso vessel. Registry also covers 2012 and 2015, not confirmed by this vessel example. Original broker identifies Volvo Penta D1-30 propulsion on this 2013 Hanse 385."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 385\" \"engine\" \"3JH\"",
              "\"Hanse 385\" \"3JH5E\"",
              "\"Hanse 385\" engine Volvo Yanmar specification",
              "Hanse 385 D1-30 2013 broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-484234-volvopenta-d130-1"
        },
        {
          "name": "Hanse 388",
          "boatType": "sailing-yacht",
          "yachtModelId": 4327922,
          "sourceModelIds": [
            4327922
          ],
          "sourceModelNames": [
            "Hanse 388"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-4327922-yanmar-3ym30ae-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Maan, built 2023 and launched May 2024. Registry covers 2018-2023. This confirms a 2023 example, not all six registry years. AE suffix retained.",
              "source": {
                "id": "hanse-mixed-h388-2023",
                "title": "De Valk: 2023 Hanse 388 Maan",
                "url": "https://www.devalk.nl/en/yachtbrokerage/811438/HANSE-388.html",
                "kind": "documented-vessel-example",
                "locator": "Built / Machinery",
                "evidence": "2023 boat, launched May 2024, has one Yanmar 3YM30AE diesel according to the selling broker.",
                "note": "Only Maan, built 2023 and launched May 2024. Registry covers 2018-2023. This confirms a 2023 example, not all six registry years. AE suffix retained. 2023 boat, launched May 2024, has one Yanmar 3YM30AE diesel according to the selling broker."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h388-2023",
                  "title": "De Valk: 2023 Hanse 388 Maan",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/811438/HANSE-388.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built / Machinery",
                  "evidence": "2023 boat, launched May 2024, has one Yanmar 3YM30AE diesel according to the selling broker.",
                  "note": "Only Maan, built 2023 and launched May 2024. Registry covers 2018-2023. This confirms a 2023 example, not all six registry years. AE suffix retained. 2023 boat, launched May 2024, has one Yanmar 3YM30AE diesel according to the selling broker."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-4327922-yanmar-3jh40-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Morgon; broker header gives 2022, comments say built 2021 and delivered 2022. Both years occur in registry coverage 2018-2023. No universal upgrade claim.",
              "source": {
                "id": "hanse-mixed-h388-2022",
                "title": "De Valk: Hanse 388 Morgon",
                "url": "https://www.devalk.nl/en/yachtbrokerage/810815/HANSE-388.html",
                "kind": "documented-vessel-example",
                "locator": "Broker comments / Machinery",
                "evidence": "Morgon was built in 2021, delivered in 2022 and listed as built 2022; machinery is one Yanmar 3JH40, 39 hp.",
                "note": "Only Morgon; broker header gives 2022, comments say built 2021 and delivered 2022. Both years occur in registry coverage 2018-2023. No universal upgrade claim. Morgon was built in 2021, delivered in 2022 and listed as built 2022; machinery is one Yanmar 3JH40, 39 hp."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h388-2022",
                  "title": "De Valk: Hanse 388 Morgon",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/810815/HANSE-388.html",
                  "kind": "documented-vessel-example",
                  "locator": "Broker comments / Machinery",
                  "evidence": "Morgon was built in 2021, delivered in 2022 and listed as built 2022; machinery is one Yanmar 3JH40, 39 hp.",
                  "note": "Only Morgon; broker header gives 2022, comments say built 2021 and delivered 2022. Both years occur in registry coverage 2018-2023. No universal upgrade claim. Morgon was built in 2021, delivered in 2022 and listed as built 2022; machinery is one Yanmar 3JH40, 39 hp."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 388\" \"engine\" Yanmar"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4327922-yanmar-3ym30ae-1"
        },
        {
          "name": "Hanse 400",
          "boatType": "sailing-yacht",
          "yachtModelId": 100401,
          "sourceModelIds": [
            100401
          ],
          "sourceModelNames": [
            "Hanse 400"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100401-volvopenta-d240f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40F",
              "engineDisplayName": "Volvo Penta D2-40F",
              "engineReferenceId": "review_volvopenta_d240f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only 2011 Tarskavaig, matching the registry's 2011 coverage. F suffix is explicitly present in the original broker inventory.",
              "source": {
                "id": "hanse-mixed-h400-2011-f",
                "title": "Mark Cameron Yachts: 2011 Hanse 400 Tarskavaig",
                "url": "https://www.mcyachts.co.uk/news/new-listing-2011-hanse-400-tarskavaig/",
                "kind": "documented-vessel-example",
                "locator": "Equipment highlights",
                "evidence": "Original selling broker specifically lists a 2011 Volvo Penta D2-40F engine and separately identifies the saildrive.",
                "note": "Only 2011 Tarskavaig, matching the registry's 2011 coverage. F suffix is explicitly present in the original broker inventory. Original selling broker specifically lists a 2011 Volvo Penta D2-40F engine and separately identifies the saildrive."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h400-2011-f",
                  "title": "Mark Cameron Yachts: 2011 Hanse 400 Tarskavaig",
                  "url": "https://www.mcyachts.co.uk/news/new-listing-2011-hanse-400-tarskavaig/",
                  "kind": "documented-vessel-example",
                  "locator": "Equipment highlights",
                  "evidence": "Original selling broker specifically lists a 2011 Volvo Penta D2-40F engine and separately identifies the saildrive.",
                  "note": "Only 2011 Tarskavaig, matching the registry's 2011 coverage. F suffix is explicitly present in the original broker inventory. Original selling broker specifically lists a 2011 Volvo Penta D2-40F engine and separately identifies the saildrive."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://www.cnml.eu/wp-content/uploads/2018/03/manuel-de-lutilisateur-D1-20F.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide-Utilisateur_Moteurs-Volvo-Penta-D1-et-D2_Manuel-7748803_version-2020_DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-100401-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only De Valk reference 812423, built 2011 with engine installed 2011; registry also covers 2011. Source does not supply the F suffix and is not used to infer one.",
              "source": {
                "id": "hanse-mixed-h400-2011",
                "title": "De Valk: 2011 Hanse 400, reference 812423",
                "url": "https://www.devalk.nl/en/yachtbrokerage/812423/HANSE-400.html",
                "kind": "documented-vessel-example",
                "locator": "Machinery / Year installed",
                "evidence": "Selling broker identifies one Volvo Penta D2-40 installed in 2011 on its 2011 Hanse 400; no F suffix is stated.",
                "note": "Only De Valk reference 812423, built 2011 with engine installed 2011; registry also covers 2011. Source does not supply the F suffix and is not used to infer one. Selling broker identifies one Volvo Penta D2-40 installed in 2011 on its 2011 Hanse 400; no F suffix is stated."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h400-2011",
                  "title": "De Valk: 2011 Hanse 400, reference 812423",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/812423/HANSE-400.html",
                  "kind": "documented-vessel-example",
                  "locator": "Machinery / Year installed",
                  "evidence": "Selling broker identifies one Volvo Penta D2-40 installed in 2011 on its 2011 Hanse 400; no F suffix is stated.",
                  "note": "Only De Valk reference 812423, built 2011 with engine installed 2011; registry also covers 2011. Source does not supply the F suffix and is not used to infer one. Selling broker identifies one Volvo Penta D2-40 installed in 2011 on its 2011 Hanse 400; no F suffix is stated."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 400\" \"2011\" \"engine\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100401-volvopenta-d240f-1"
        },
        {
          "name": "Hanse 410",
          "boatType": "sailing-yacht",
          "yachtModelId": 39170356,
          "sourceModelIds": [
            39170356
          ],
          "sourceModelNames": [
            "Hanse 410"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-39170356-yanmar-3jh40-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "New-generation Hanse 410 shown by YANMAR Marine at boot Dusseldorf 2024. Registry years are 2024, 2025 and 2026; source documents the 2024 configuration, not every later-year build.",
              "source": {
                "id": "hanse-mixed-h410-yanmar",
                "title": "YANMAR Marine: Hanse 410 at boot Dusseldorf 2024",
                "url": "https://www.youtube.com/watch?v=6IQTQx4X0ww",
                "kind": "manufacturer-specification",
                "locator": "YANMAR Marine video title, published 23 May 2024",
                "evidence": "Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional.",
                "note": "New-generation Hanse 410 shown by YANMAR Marine at boot Dusseldorf 2024. Registry years are 2024, 2025 and 2026; source documents the 2024 configuration, not every later-year build. Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h410-yanmar",
                  "title": "YANMAR Marine: Hanse 410 at boot Dusseldorf 2024",
                  "url": "https://www.youtube.com/watch?v=6IQTQx4X0ww",
                  "kind": "manufacturer-specification",
                  "locator": "YANMAR Marine video title, published 23 May 2024",
                  "evidence": "Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional.",
                  "note": "New-generation Hanse 410 shown by YANMAR Marine at boot Dusseldorf 2024. Registry years are 2024, 2025 and 2026; source documents the 2024 configuration, not every later-year build. Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-39170356-yanmar-4jh57-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "YANMAR Marine explicitly names this optional engine for the new Hanse 410 at boot Dusseldorf 2024. Does not identify any individual registry boat from 2024-2026.",
              "source": {
                "id": "hanse-mixed-h410-yanmar",
                "title": "YANMAR Marine: Hanse 410 at boot Dusseldorf 2024",
                "url": "https://www.youtube.com/watch?v=6IQTQx4X0ww",
                "kind": "manufacturer-specification",
                "locator": "YANMAR Marine video title, published 23 May 2024",
                "evidence": "Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional.",
                "note": "YANMAR Marine explicitly names this optional engine for the new Hanse 410 at boot Dusseldorf 2024. Does not identify any individual registry boat from 2024-2026. Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h410-yanmar",
                  "title": "YANMAR Marine: Hanse 410 at boot Dusseldorf 2024",
                  "url": "https://www.youtube.com/watch?v=6IQTQx4X0ww",
                  "kind": "manufacturer-specification",
                  "locator": "YANMAR Marine video title, published 23 May 2024",
                  "evidence": "Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional.",
                  "note": "YANMAR Marine explicitly names this optional engine for the new Hanse 410 at boot Dusseldorf 2024. Does not identify any individual registry boat from 2024-2026. Engine manufacturer's title explicitly pairs Hanse 410 with 3JH40 and identifies 4JH57 as optional."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 410\" \"3JH40\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-39170356-yanmar-3jh40-1"
        },
        {
          "name": "Hanse 415",
          "boatType": "sailing-yacht",
          "yachtModelId": 484232,
          "sourceModelIds": [
            484232
          ],
          "sourceModelNames": [
            "Hanse 415"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-484232-volvopenta-d240-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-40",
              "engineDisplayName": "Volvo Penta D2-40",
              "engineReferenceId": "volvo_d2_40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Croatia Yachting's 2016 Kastela vessel. Registry covers 2015-2018; this is a 2016 installation, not a universal 415 fit.",
              "source": {
                "id": "hanse-mixed-h415-2016-40",
                "title": "Croatia Yachting: 2016 Hanse 415 in Kastela",
                "url": "https://uk.boats.com/sailing-boats/2016-hanse-415-7837955/",
                "kind": "documented-vessel-example",
                "locator": "Presented for sale by Croatia Yachting / Propulsion",
                "evidence": "The selling dealer's 2016 vessel listing identifies one Volvo Penta D2-40 diesel.",
                "note": "Only Croatia Yachting's 2016 Kastela vessel. Registry covers 2015-2018; this is a 2016 installation, not a universal 415 fit. The selling dealer's 2016 vessel listing identifies one Volvo Penta D2-40 diesel."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h415-2016-40",
                  "title": "Croatia Yachting: 2016 Hanse 415 in Kastela",
                  "url": "https://uk.boats.com/sailing-boats/2016-hanse-415-7837955/",
                  "kind": "documented-vessel-example",
                  "locator": "Presented for sale by Croatia Yachting / Propulsion",
                  "evidence": "The selling dealer's 2016 vessel listing identifies one Volvo Penta D2-40 diesel.",
                  "note": "Only Croatia Yachting's 2016 Kastela vessel. Registry covers 2015-2018; this is a 2016 installation, not a universal 415 fit. The selling dealer's 2016 vessel listing identifies one Volvo Penta D2-40 diesel."
                }
              ],
              "selectionPower": {
                "kw": 29.1,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D2-40.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-484232-volvopenta-d255f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-55F",
              "engineDisplayName": "Volvo Penta D2-55F",
              "engineReferenceId": "review_volvopenta_d255f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only 2016 Acadia in Kevin Dailey Yacht Brokerage's listing. Registry covers 2015-2018. Exact F suffix retained; alternative to the separately documented D2-40 boat.",
              "source": {
                "id": "hanse-mixed-h415-2016-55f",
                "title": "Kevin Dailey Yacht Brokerage: 2016 Hanse 415 Acadia",
                "url": "https://www.boattrader.com/boat/2016-hanse-415-9882923/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion / Acadia details",
                "evidence": "Selling broker's Acadia listing specifies Volvo D2-55F diesel propulsion, an exact alternative to the D2-40 example.",
                "note": "Only 2016 Acadia in Kevin Dailey Yacht Brokerage's listing. Registry covers 2015-2018. Exact F suffix retained; alternative to the separately documented D2-40 boat. Selling broker's Acadia listing specifies Volvo D2-55F diesel propulsion, an exact alternative to the D2-40 example."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h415-2016-55f",
                  "title": "Kevin Dailey Yacht Brokerage: 2016 Hanse 415 Acadia",
                  "url": "https://www.boattrader.com/boat/2016-hanse-415-9882923/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion / Acadia details",
                  "evidence": "Selling broker's Acadia listing specifies Volvo D2-55F diesel propulsion, an exact alternative to the D2-40 example.",
                  "note": "Only 2016 Acadia in Kevin Dailey Yacht Brokerage's listing. Registry covers 2015-2018. Exact F suffix retained; alternative to the separately documented D2-40 boat. Selling broker's Acadia listing specifies Volvo D2-55F diesel propulsion, an exact alternative to the D2-40 example."
                }
              ],
              "selectionPower": {
                "kw": 41,
                "sources": [
                  "https://www.manualslib.de/manual/49008/Volvo-Penta-D2.html?page=76"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 41
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 415\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-484232-volvopenta-d240-1"
        },
        {
          "name": "Hanse 418",
          "boatType": "sailing-yacht",
          "yachtModelId": 4487088,
          "sourceModelIds": [
            4487088
          ],
          "sourceModelNames": [
            "Hanse 418 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-4487088-yanmar-3jh5e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH5E",
              "engineDisplayName": "Yanmar 3JH5E",
              "engineReferenceId": "yanmar_3jh5e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the Lelystad vessel with engine year 2019. Registry includes 2019 among its 2018-2025 sampled years. Retain the older 3JH5E identity; do not rewrite as 3JH40 from equal power.",
              "source": {
                "id": "hanse-mixed-h418-2019",
                "title": "Lelystad Yachtshift: 2019 Hanse 418",
                "url": "https://lelystad.yachtshift.nl/179/hanse-418",
                "kind": "documented-vessel-example",
                "locator": "Hoofdmotor",
                "evidence": "Original vessel listing explicitly names a Yanmar 3JH5E, engine year 2019, 39 hp.",
                "note": "Only the Lelystad vessel with engine year 2019. Registry includes 2019 among its 2018-2025 sampled years. Retain the older 3JH5E identity; do not rewrite as 3JH40 from equal power. Original vessel listing explicitly names a Yanmar 3JH5E, engine year 2019, 39 hp."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h418-2019",
                  "title": "Lelystad Yachtshift: 2019 Hanse 418",
                  "url": "https://lelystad.yachtshift.nl/179/hanse-418",
                  "kind": "documented-vessel-example",
                  "locator": "Hoofdmotor",
                  "evidence": "Original vessel listing explicitly names a Yanmar 3JH5E, engine year 2019, 39 hp.",
                  "note": "Only the Lelystad vessel with engine year 2019. Registry includes 2019 among its 2018-2025 sampled years. Retain the older 3JH5E identity; do not rewrite as 3JH40 from equal power. Original vessel listing explicitly names a Yanmar 3JH5E, engine year 2019, 39 hp."
                }
              ],
              "selectionPower": {
                "kw": 28.7,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_3JH5E.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 28.7
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-4487088-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only De Valk's 2021 Hanse 418. Registry covers 2018, 2019, 2020, 2021, 2022, 2024 and 2025; no other registry years are established by this example.",
              "source": {
                "id": "hanse-mixed-h418-2021",
                "title": "De Valk: 2021 Hanse 418, reference 808225",
                "url": "https://www.devalk.nl/en/yachtbrokerage/808225/HANSE-418.html",
                "kind": "documented-vessel-example",
                "locator": "Machinery",
                "evidence": "Broker specifies one Yanmar 4JH57, 57 hp, installed 2021 on this 2021 Hanse 418.",
                "note": "Only De Valk's 2021 Hanse 418. Registry covers 2018, 2019, 2020, 2021, 2022, 2024 and 2025; no other registry years are established by this example. Broker specifies one Yanmar 4JH57, 57 hp, installed 2021 on this 2021 Hanse 418."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h418-2021",
                  "title": "De Valk: 2021 Hanse 418, reference 808225",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/808225/HANSE-418.html",
                  "kind": "documented-vessel-example",
                  "locator": "Machinery",
                  "evidence": "Broker specifies one Yanmar 4JH57, 57 hp, installed 2021 on this 2021 Hanse 418.",
                  "note": "Only De Valk's 2021 Hanse 418. Registry covers 2018, 2019, 2020, 2021, 2022, 2024 and 2025; no other registry years are established by this example. Broker specifies one Yanmar 4JH57, 57 hp, installed 2021 on this 2021 Hanse 418."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 418\" engine \"model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4487088-yanmar-3jh5e-1"
        },
        {
          "name": "Hanse 430 E",
          "boatType": "sailing-yacht",
          "yachtModelId": 8066657,
          "sourceModelIds": [
            8066657
          ],
          "sourceModelNames": [
            "Hanse 430 E"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-8066657-yanmar-3jh4e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH4E",
              "engineDisplayName": "Yanmar 3JH4E",
              "engineReferenceId": "yanmar_3jh4e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only De Valk's 2008 epoxy Hanse 430E, matching registry year 2008. Source formats the code as 3JH4 E; only whitespace is normalized.",
              "source": {
                "id": "hanse-mixed-h430e-2008",
                "title": "De Valk: 2008 Hanse 430E",
                "url": "https://www.devalk.nl/en/yachtbrokerage/300537/HANSE-430E.html",
                "kind": "documented-vessel-example",
                "locator": "General / Machinery",
                "evidence": "Selling broker identifies a 2008 epoxy Hanse 430E with one Yanmar 3JH4 E engine installed in 2008.",
                "note": "Only De Valk's 2008 epoxy Hanse 430E, matching registry year 2008. Source formats the code as 3JH4 E; only whitespace is normalized. Selling broker identifies a 2008 epoxy Hanse 430E with one Yanmar 3JH4 E engine installed in 2008."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h430e-2008",
                  "title": "De Valk: 2008 Hanse 430E",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/300537/HANSE-430E.html",
                  "kind": "documented-vessel-example",
                  "locator": "General / Machinery",
                  "evidence": "Selling broker identifies a 2008 epoxy Hanse 430E with one Yanmar 3JH4 E engine installed in 2008.",
                  "note": "Only De Valk's 2008 epoxy Hanse 430E, matching registry year 2008. Source formats the code as 3JH4 E; only whitespace is normalized. Selling broker identifies a 2008 epoxy Hanse 430E with one Yanmar 3JH4 E engine installed in 2008."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.fi/content/download/14006/102939/file/JH4_OM_Rev_01_18DEC06.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-8066657-yanmar-4jh4e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4E",
              "engineDisplayName": "Yanmar 4JH4E",
              "engineReferenceId": "review_yanmar_4jh4e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only BoatAgent's 2007 epoxy Hanse 430e, not the registry's 2008 individual boat. Same explicitly named E design; not generalized to a non-E Hanse 430. SD-50 is the drive, not the engine.",
              "source": {
                "id": "hanse-mixed-h430e-2007",
                "title": "BoatAgent: 2007 Hanse 430e equipment list",
                "url": "https://batagent.se/wp-content/uploads/2023/06/import/hanse-430e-equipment-list-eng.pdf",
                "kind": "documented-vessel-example",
                "locator": "Engine",
                "evidence": "Original broker's 2007 epoxy 430e inventory identifies Yanmar 4JH4E, 55 hp; SD-50 appears separately as the saildrive.",
                "note": "Only BoatAgent's 2007 epoxy Hanse 430e, not the registry's 2008 individual boat. Same explicitly named E design; not generalized to a non-E Hanse 430. SD-50 is the drive, not the engine. Original broker's 2007 epoxy 430e inventory identifies Yanmar 4JH4E, 55 hp; SD-50 appears separately as the saildrive."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h430e-2007",
                  "title": "BoatAgent: 2007 Hanse 430e equipment list",
                  "url": "https://batagent.se/wp-content/uploads/2023/06/import/hanse-430e-equipment-list-eng.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Engine",
                  "evidence": "Original broker's 2007 epoxy 430e inventory identifies Yanmar 4JH4E, 55 hp; SD-50 appears separately as the saildrive.",
                  "note": "Only BoatAgent's 2007 epoxy Hanse 430e, not the registry's 2008 individual boat. Same explicitly named E design; not generalized to a non-E Hanse 430. SD-50 is the drive, not the engine. Original broker's 2007 epoxy 430e inventory identifies Yanmar 4JH4E, 55 hp; SD-50 appears separately as the saildrive."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://irp.cdn-website.com/76471e1f/files/uploaded/4JH4E_%2854hp%29TechData.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 430 E\" engine Yanmar",
              "\"Hanse 430e\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-8066657-yanmar-3jh4e-1"
        },
        {
          "name": "Hanse 455",
          "boatType": "sailing-yacht",
          "yachtModelId": 831617,
          "sourceModelIds": [
            831617,
            1074348
          ],
          "sourceModelNames": [
            "Hanse 455",
            "Hanse 455 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-831617-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Yacht Trade Denmark's 2017 vessel. Registry also covers 2016 and 2018 and combines three-cabin and unspecified-layout IDs; source does not establish every layout/year.",
              "source": {
                "id": "hanse-mixed-h455-2017",
                "title": "Yacht Trade Denmark: 2017 Hanse 455",
                "url": "https://www.yachttradedenmark.com/da/solgte-bade/hanse-455",
                "kind": "documented-vessel-example",
                "locator": "Modelar / Motorproducent / Antal motorer / HK",
                "evidence": "Original broker lists model year 2017 and one Yanmar 4JH57, 57 hp.",
                "note": "Only Yacht Trade Denmark's 2017 vessel. Registry also covers 2016 and 2018 and combines three-cabin and unspecified-layout IDs; source does not establish every layout/year. Original broker lists model year 2017 and one Yanmar 4JH57, 57 hp."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h455-2017",
                  "title": "Yacht Trade Denmark: 2017 Hanse 455",
                  "url": "https://www.yachttradedenmark.com/da/solgte-bade/hanse-455",
                  "kind": "documented-vessel-example",
                  "locator": "Modelar / Motorproducent / Antal motorer / HK",
                  "evidence": "Original broker lists model year 2017 and one Yanmar 4JH57, 57 hp.",
                  "note": "Only Yacht Trade Denmark's 2017 vessel. Registry also covers 2016 and 2018 and combines three-cabin and unspecified-layout IDs; source does not establish every layout/year. Original broker lists model year 2017 and one Yanmar 4JH57, 57 hp."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 455\" engine Yanmar model",
              "\"Hanse 455\" \"4JH57\" \"2017\" -site:boats.com -site:svb.de"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-831617-yanmar-4jh57-1"
        },
        {
          "name": "Hanse 458",
          "boatType": "sailing-yacht",
          "yachtModelId": 8341114,
          "sourceModelIds": [
            8341114,
            8510599
          ],
          "sourceModelNames": [
            "Hanse 458",
            "Hanse 458 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-8341114-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Clipper Marine's Hanse 458 delivered spring 2025 in Patra. Registry includes 2025 within 2019-2025; keep separate from 2024 Nebulas' 4JH80.",
              "source": {
                "id": "hanse-mixed-h458-2025",
                "title": "Clipper Marine: 2025 Hanse 458, Patra",
                "url": "https://www.inautia.com/boat/2025-hanse-458-10295430/",
                "kind": "documented-vessel-example",
                "locator": "Clipper Marine seller description / Engine Model",
                "evidence": "Clipper Marine's original vessel listing identifies Yanmar 4JH57, 57 hp, on a Hanse 458 delivered in spring 2025.",
                "note": "Only Clipper Marine's Hanse 458 delivered spring 2025 in Patra. Registry includes 2025 within 2019-2025; keep separate from 2024 Nebulas' 4JH80. Clipper Marine's original vessel listing identifies Yanmar 4JH57, 57 hp, on a Hanse 458 delivered in spring 2025."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h458-2025",
                  "title": "Clipper Marine: 2025 Hanse 458, Patra",
                  "url": "https://www.inautia.com/boat/2025-hanse-458-10295430/",
                  "kind": "documented-vessel-example",
                  "locator": "Clipper Marine seller description / Engine Model",
                  "evidence": "Clipper Marine's original vessel listing identifies Yanmar 4JH57, 57 hp, on a Hanse 458 delivered in spring 2025.",
                  "note": "Only Clipper Marine's Hanse 458 delivered spring 2025 in Patra. Registry includes 2025 within 2019-2025; keep separate from 2024 Nebulas' 4JH80. Clipper Marine's original vessel listing identifies Yanmar 4JH57, 57 hp, on a Hanse 458 delivered in spring 2025."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-8341114-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only 2024 Nebulas. Registry covers 2019-2025. This is an observed 2024 installation, not the standard for all Hanse 458 boats.",
              "source": {
                "id": "hanse-mixed-h458-2024",
                "title": "De Valk: 2024 Hanse 458 Nebulas",
                "url": "https://www.devalk.nl/en/yachtbrokerage/812187/HANSE-458.html",
                "kind": "documented-vessel-example",
                "locator": "Built / Engine(s) / Broker comments",
                "evidence": "2024 Nebulas is explicitly listed with one Yanmar 4JH80, 80 hp.",
                "note": "Only 2024 Nebulas. Registry covers 2019-2025. This is an observed 2024 installation, not the standard for all Hanse 458 boats. 2024 Nebulas is explicitly listed with one Yanmar 4JH80, 80 hp."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h458-2024",
                  "title": "De Valk: 2024 Hanse 458 Nebulas",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/812187/HANSE-458.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built / Engine(s) / Broker comments",
                  "evidence": "2024 Nebulas is explicitly listed with one Yanmar 4JH80, 80 hp.",
                  "note": "Only 2024 Nebulas. Registry covers 2019-2025. This is an observed 2024 installation, not the standard for all Hanse 458 boats. 2024 Nebulas is explicitly listed with one Yanmar 4JH80, 80 hp."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 8
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 458\" \"4JH\"",
              "Hanse 458 Yanmar engine 4JH57 broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-8341114-yanmar-4jh57-1"
        },
        {
          "name": "Hanse 460",
          "boatType": "sailing-yacht",
          "yachtModelId": 22582938,
          "sourceModelIds": [
            22582938,
            23155596,
            23165243
          ],
          "sourceModelNames": [
            "Hanse 460",
            "Hanse 460 - 3 cab",
            "Hanse 460 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-22582938-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only ADS Marine's 2023-build, 2024-model-year vessel. Registry covers 2022-2026; both published dates are within coverage, but this does not resolve other boats.",
              "source": {
                "id": "hanse-mixed-h460-57",
                "title": "ADS Marine: Hanse 460, build 2023 / model 2024",
                "url": "https://ads-marine.com/en/sail-boats/hanse-460?f=print_page&type=pdf",
                "kind": "documented-vessel-example",
                "locator": "GENERAL INFORMATION / PROPULSION",
                "evidence": "Broker's vessel PDF specifies 2023 build, 2024 model year and one Yanmar 4JH57, 57 hp.",
                "note": "Only ADS Marine's 2023-build, 2024-model-year vessel. Registry covers 2022-2026; both published dates are within coverage, but this does not resolve other boats. Broker's vessel PDF specifies 2023 build, 2024 model year and one Yanmar 4JH57, 57 hp."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h460-57",
                  "title": "ADS Marine: Hanse 460, build 2023 / model 2024",
                  "url": "https://ads-marine.com/en/sail-boats/hanse-460?f=print_page&type=pdf",
                  "kind": "documented-vessel-example",
                  "locator": "GENERAL INFORMATION / PROPULSION",
                  "evidence": "Broker's vessel PDF specifies 2023 build, 2024 model year and one Yanmar 4JH57, 57 hp.",
                  "note": "Only ADS Marine's 2023-build, 2024-model-year vessel. Registry covers 2022-2026; both published dates are within coverage, but this does not resolve other boats. Broker's vessel PDF specifies 2023 build, 2024 model year and one Yanmar 4JH57, 57 hp."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-22582938-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Wilkinson Marine's documented Hanse 460; the extracted machinery section does not establish build year. Registry covers 2022-2026. Do not assign a year-wide factory fit from this example.",
              "source": {
                "id": "hanse-mixed-h460-80",
                "title": "Wilkinson Marine: Hanse 460",
                "url": "https://www.wilkinsonmarine.com/store/p159/Hanse_460.html",
                "kind": "documented-vessel-example",
                "locator": "MACHINERY / Engine and gearbox",
                "evidence": "Selling broker explicitly identifies one Yanmar 4JH80 common-rail diesel rated 80 hp, 59 kW at 3200 rpm. SD-60 is described separately as gearbox.",
                "note": "Only Wilkinson Marine's documented Hanse 460; the extracted machinery section does not establish build year. Registry covers 2022-2026. Do not assign a year-wide factory fit from this example. Selling broker explicitly identifies one Yanmar 4JH80 common-rail diesel rated 80 hp, 59 kW at 3200 rpm. SD-60 is described separately as gearbox."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h460-80",
                  "title": "Wilkinson Marine: Hanse 460",
                  "url": "https://www.wilkinsonmarine.com/store/p159/Hanse_460.html",
                  "kind": "documented-vessel-example",
                  "locator": "MACHINERY / Engine and gearbox",
                  "evidence": "Selling broker explicitly identifies one Yanmar 4JH80 common-rail diesel rated 80 hp, 59 kW at 3200 rpm. SD-60 is described separately as gearbox.",
                  "note": "Only Wilkinson Marine's documented Hanse 460; the extracted machinery section does not establish build year. Registry covers 2022-2026. Do not assign a year-wide factory fit from this example. Selling broker explicitly identifies one Yanmar 4JH80 common-rail diesel rated 80 hp, 59 kW at 3200 rpm. SD-60 is described separately as gearbox."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 12
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 8
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 460\" \"4JH\"",
              "Hanse 460 Yanmar engine model specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-22582938-yanmar-4jh57-1"
        },
        {
          "name": "Hanse 505",
          "boatType": "sailing-yacht",
          "yachtModelId": 530038,
          "sourceModelIds": [
            530038,
            577061,
            838112
          ],
          "sourceModelNames": [
            "Hanse 505 - 4 + 1 cab.",
            "Hanse 505 - 5 + 1 cab.",
            "Hanse 505 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-530038-volvopenta-d275-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75",
              "engineDisplayName": "Volvo Penta D2-75",
              "engineReferenceId": "volvo_d2_75",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Firros Yachts' Hanse 505 model specification, not an individual vessel identification. Registry covers 2017 and 2018, but this undated dealer page does not establish which build years or engine suffixes it describes.",
              "source": {
                "id": "hanse-mixed-h505-dealer",
                "title": "Firros Yachts: Hanse 505 technical characteristics",
                "url": "https://www.firrosyachts.com/hanse/hanse-505/",
                "kind": "authorized-dealer-specification",
                "locator": "Les caracteristiques techniques du Hanse 505",
                "evidence": "Hanse dealer's model page explicitly publishes Volvo Penta D2-75 at 72 CV / 53 kW. Authorization was independently verified in Hanse's dealer directory at https://hanseyachts.com/gb/dealers/firros-yachts-16/.",
                "note": "Firros Yachts' Hanse 505 model specification, not an individual vessel identification. Registry covers 2017 and 2018, but this undated dealer page does not establish which build years or engine suffixes it describes. Hanse dealer's model page explicitly publishes Volvo Penta D2-75 at 72 CV / 53 kW. Authorization was independently verified in Hanse's dealer directory at https://hanseyachts.com/gb/dealers/firros-yachts-16/."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h505-dealer",
                  "title": "Firros Yachts: Hanse 505 technical characteristics",
                  "url": "https://www.firrosyachts.com/hanse/hanse-505/",
                  "kind": "authorized-dealer-specification",
                  "locator": "Les caracteristiques techniques du Hanse 505",
                  "evidence": "Hanse dealer's model page explicitly publishes Volvo Penta D2-75 at 72 CV / 53 kW. Authorization was independently verified in Hanse's dealer directory at https://hanseyachts.com/gb/dealers/firros-yachts-16/.",
                  "note": "Firros Yachts' Hanse 505 model specification, not an individual vessel identification. Registry covers 2017 and 2018, but this undated dealer page does not establish which build years or engine suffixes it describes. Hanse dealer's model page explicitly publishes Volvo Penta D2-75 at 72 CV / 53 kW. Authorization was independently verified in Hanse's dealer directory at https://hanseyachts.com/gb/dealers/firros-yachts-16/."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-530038-volvopenta-d275f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-75F",
              "engineDisplayName": "Volvo Penta D2-75F",
              "engineReferenceId": "review_volvopenta_d275f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only 2014 First Light. Registry covers 2017 and 2018, which are not established by this older vessel example. F suffix explicitly retained.",
              "source": {
                "id": "hanse-mixed-h505-2014",
                "title": "YOTI: Hanse 505 First Light",
                "url": "https://www.yoti.com.au/?bdbrochure=hanse-505-first-light-sold",
                "kind": "documented-vessel-example",
                "locator": "Specifications / Year / Engine Make",
                "evidence": "Original broker's sold-boat brochure identifies 2014 Hanse 505 First Light with Volvo D2-75F.",
                "note": "Only 2014 First Light. Registry covers 2017 and 2018, which are not established by this older vessel example. F suffix explicitly retained. Original broker's sold-boat brochure identifies 2014 Hanse 505 First Light with Volvo D2-75F."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h505-2014",
                  "title": "YOTI: Hanse 505 First Light",
                  "url": "https://www.yoti.com.au/?bdbrochure=hanse-505-first-light-sold",
                  "kind": "documented-vessel-example",
                  "locator": "Specifications / Year / Engine Make",
                  "evidence": "Original broker's sold-boat brochure identifies 2014 Hanse 505 First Light with Volvo D2-75F.",
                  "note": "Only 2014 First Light. Registry covers 2017 and 2018, which are not established by this older vessel example. F suffix explicitly retained. Original broker's sold-boat brochure identifies 2014 Hanse 505 First Light with Volvo D2-75F."
                }
              ],
              "selectionPower": {
                "kw": 55,
                "sources": [
                  "https://www.manualslib.de/manual/49008/Volvo-Penta-D2.html?page=76"
                ],
                "basis": "selection-power-reference",
                "approximate": false,
                "totalKw": 55
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 505\" \"D2\"",
              "\"Hanse 505\" \"2017\" \"D2-75\" site:devalk.nl OR site:grabauinternational.com OR site:mcyachts.co.uk"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-530038-volvopenta-d275-1"
        },
        {
          "name": "Hanse 508",
          "boatType": "sailing-yacht",
          "yachtModelId": 8135909,
          "sourceModelIds": [
            8135909,
            10518962,
            10925065,
            31420562,
            46406157
          ],
          "sourceModelNames": [
            "Hanse 508",
            "Hanse 508 - 3 + 1 cab.",
            "Hanse 508 - 4 + 1 cab.",
            "Hanse 508 - 5 + 1 cab.",
            "Hanse 508 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-8135909-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Yacht Broker House's 2023 Hanse 508 in Lavrio. Registry covers 2019-2025 and combines several cabin layouts; no claim for all other years or layouts.",
              "source": {
                "id": "hanse-mixed-h508-2023",
                "title": "Yacht Broker House: 2023 Hanse 508 in Lavrio",
                "url": "https://boats.com/sailing-boats/2023-hanse-508-10256725/",
                "kind": "documented-vessel-example",
                "locator": "Presented for sale by Yacht Broker House / Propulsion / Seller description",
                "evidence": "Selling broker explicitly identifies Yanmar 4JH80, 80 hp, on this 2023 Hanse 508.",
                "note": "Only Yacht Broker House's 2023 Hanse 508 in Lavrio. Registry covers 2019-2025 and combines several cabin layouts; no claim for all other years or layouts. Selling broker explicitly identifies Yanmar 4JH80, 80 hp, on this 2023 Hanse 508."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h508-2023",
                  "title": "Yacht Broker House: 2023 Hanse 508 in Lavrio",
                  "url": "https://boats.com/sailing-boats/2023-hanse-508-10256725/",
                  "kind": "documented-vessel-example",
                  "locator": "Presented for sale by Yacht Broker House / Propulsion / Seller description",
                  "evidence": "Selling broker explicitly identifies Yanmar 4JH80, 80 hp, on this 2023 Hanse 508.",
                  "note": "Only Yacht Broker House's 2023 Hanse 508 in Lavrio. Registry covers 2019-2025 and combines several cabin layouts; no claim for all other years or layouts. Selling broker explicitly identifies Yanmar 4JH80, 80 hp, on this 2023 Hanse 508."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 6
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 508\" \"4JH\"",
              "Hanse 508 Yanmar engine model specification",
              "Hanse 508 4JH80 broker",
              "\"Hanse 508\" \"4JH80\" \"Yacht Broker House\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-8135909-yanmar-4jh80-1"
        },
        {
          "name": "Hanse 510",
          "boatType": "sailing-yacht",
          "yachtModelId": 30773405,
          "sourceModelIds": [
            30773405,
            31419541,
            39170174
          ],
          "sourceModelNames": [
            "Hanse 510 - 3 + 1 cab.",
            "Hanse 510 - 4 + 1 cab.",
            "Hanse 510 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-30773405-yanmar-4jh110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Hanse Vertriebs' 2023 Hanse 510 in Greifswald; this is the new Berret-Racoupeau generation, not the historical Hanse 510. Registry covers 2023-2026; no inferred fit for the other years.",
              "source": {
                "id": "hanse-mixed-h510-2023",
                "title": "Hanse Vertriebs: 2023 Hanse 510 in Greifswald",
                "url": "https://www.boats.com/sailing-boats/2023-hanse-510-9603428/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion / Seller description",
                "evidence": "Hanse Vertriebs' vessel listing explicitly names Yanmar 4JH110; this is the newer Berret-Racoupeau Hanse 510.",
                "note": "Only Hanse Vertriebs' 2023 Hanse 510 in Greifswald; this is the new Berret-Racoupeau generation, not the historical Hanse 510. Registry covers 2023-2026; no inferred fit for the other years. Hanse Vertriebs' vessel listing explicitly names Yanmar 4JH110; this is the newer Berret-Racoupeau Hanse 510."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h510-2023",
                  "title": "Hanse Vertriebs: 2023 Hanse 510 in Greifswald",
                  "url": "https://www.boats.com/sailing-boats/2023-hanse-510-9603428/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion / Seller description",
                  "evidence": "Hanse Vertriebs' vessel listing explicitly names Yanmar 4JH110; this is the newer Berret-Racoupeau Hanse 510.",
                  "note": "Only Hanse Vertriebs' 2023 Hanse 510 in Greifswald; this is the new Berret-Racoupeau generation, not the historical Hanse 510. Registry covers 2023-2026; no inferred fit for the other years. Hanse Vertriebs' vessel listing explicitly names Yanmar 4JH110; this is the newer Berret-Racoupeau Hanse 510."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Hanse 510 Yanmar engine model specification",
              "Hanse 510 4JH110 broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-30773405-yanmar-4jh110-1"
        },
        {
          "name": "Hanse 545",
          "boatType": "sailing-yacht",
          "yachtModelId": 478296,
          "sourceModelIds": [
            478296
          ],
          "sourceModelNames": [
            "Hanse 545"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-478296-volvopenta-d3110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-110",
              "engineDisplayName": "Volvo Penta D3-110",
              "engineReferenceId": "volvo_d3_110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Oceanis Yachts' Hanse 545 charter boat. Specification says 2011, matching registry year; page summary says 2010. Retain that dating discrepancy rather than asserting an exact production interval.",
              "source": {
                "id": "hanse-mixed-h545-2011",
                "title": "Oceanis Yachts: Hanse 545 charter specification",
                "url": "https://oceanis.it/en/yacht-charter/hanse-545/",
                "kind": "documented-vessel-example",
                "locator": "Specifications / Year / Engine",
                "evidence": "Operator's own specification lists year 2011 and Volvo D3-110 HP under Engine; page summary separately says 2010.",
                "note": "Only Oceanis Yachts' Hanse 545 charter boat. Specification says 2011, matching registry year; page summary says 2010. Retain that dating discrepancy rather than asserting an exact production interval. Operator's own specification lists year 2011 and Volvo D3-110 HP under Engine; page summary separately says 2010."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h545-2011",
                  "title": "Oceanis Yachts: Hanse 545 charter specification",
                  "url": "https://oceanis.it/en/yacht-charter/hanse-545/",
                  "kind": "documented-vessel-example",
                  "locator": "Specifications / Year / Engine",
                  "evidence": "Operator's own specification lists year 2011 and Volvo D3-110 HP under Engine; page summary separately says 2010.",
                  "note": "Only Oceanis Yachts' Hanse 545 charter boat. Specification says 2011, matching registry year; page summary says 2010. Retain that dating discrepancy rather than asserting an exact production interval. Operator's own specification lists year 2011 and Volvo D3-110 HP under Engine; page summary separately says 2010."
                }
              ],
              "selectionPower": {
                "kw": 81,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/47701949_FR-VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 81
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 545\" engine Yanmar Volvo model",
              "\"Hanse 545\" \"2011\" engine Volvo D3"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-478296-volvopenta-d3110-1"
        },
        {
          "name": "Hanse 548",
          "boatType": "sailing-yacht",
          "yachtModelId": 4327881,
          "sourceModelIds": [
            4327881,
            4422199
          ],
          "sourceModelNames": [
            "Hanse 548 - 4 + 1 cab.",
            "Hanse 548 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-4327881-yanmar-4jh110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Nina Yachting's 2020 Hanse 548 in Athens, within registry years 2018, 2019, 2020 and 2022. Listing platform misclassifies it as a power cruiser; engine field explicitly identifies 4JH110. No fit inferred for other registry years.",
              "source": {
                "id": "hanse-mixed-h548-2020",
                "title": "Nina Yachting: 2020 Hanse 548, Athens",
                "url": "https://uk.boats.com/power-boats/2020-hanse-548-10210022/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion",
                "evidence": "Selling broker explicitly identifies a 2020 Yanmar 4JH110, 110 hp, shaft-drive installation. Platform's power-cruiser classification is inconsistent with the sailing model.",
                "note": "Only Nina Yachting's 2020 Hanse 548 in Athens, within registry years 2018, 2019, 2020 and 2022. Listing platform misclassifies it as a power cruiser; engine field explicitly identifies 4JH110. No fit inferred for other registry years. Selling broker explicitly identifies a 2020 Yanmar 4JH110, 110 hp, shaft-drive installation. Platform's power-cruiser classification is inconsistent with the sailing model."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h548-2020",
                  "title": "Nina Yachting: 2020 Hanse 548, Athens",
                  "url": "https://uk.boats.com/power-boats/2020-hanse-548-10210022/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion",
                  "evidence": "Selling broker explicitly identifies a 2020 Yanmar 4JH110, 110 hp, shaft-drive installation. Platform's power-cruiser classification is inconsistent with the sailing model.",
                  "note": "Only Nina Yachting's 2020 Hanse 548 in Athens, within registry years 2018, 2019, 2020 and 2022. Listing platform misclassifies it as a power cruiser; engine field explicitly identifies 4JH110. No fit inferred for other registry years. Selling broker explicitly identifies a 2020 Yanmar 4JH110, 110 hp, shaft-drive installation. Platform's power-cruiser classification is inconsistent with the sailing model."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 548\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4327881-yanmar-4jh110-1"
        },
        {
          "name": "Hanse 575",
          "boatType": "sailing-yacht",
          "yachtModelId": 618360,
          "sourceModelIds": [
            618360,
            1079296
          ],
          "sourceModelNames": [
            "Hanse 575 - 3 + 1 cab.",
            "Hanse 575 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-618360-volvopenta-d3110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-110",
              "engineDisplayName": "Volvo Penta D3-110",
              "engineReferenceId": "volvo_d3_110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Navark's 2013 Hanse 575, outside registry years 2014-2016. Source writes D3-110HK, with HK denoting horsepower; no assumption that other years share it.",
              "source": {
                "id": "hanse-mixed-h575-2013",
                "title": "Navark: 2013 Hanse 575",
                "url": "https://www.navark.se/files/pdf/hanse-575-2013.pdf",
                "kind": "documented-vessel-example",
                "locator": "PROPULSION",
                "evidence": "Original broker's 2013 vessel PDF names Volvo Penta D3-110HK; HK is the local horsepower label, not an added engine suffix.",
                "note": "Only Navark's 2013 Hanse 575, outside registry years 2014-2016. Source writes D3-110HK, with HK denoting horsepower; no assumption that other years share it. Original broker's 2013 vessel PDF names Volvo Penta D3-110HK; HK is the local horsepower label, not an added engine suffix."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h575-2013",
                  "title": "Navark: 2013 Hanse 575",
                  "url": "https://www.navark.se/files/pdf/hanse-575-2013.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "PROPULSION",
                  "evidence": "Original broker's 2013 vessel PDF names Volvo Penta D3-110HK; HK is the local horsepower label, not an added engine suffix.",
                  "note": "Only Navark's 2013 Hanse 575, outside registry years 2014-2016. Source writes D3-110HK, with HK denoting horsepower; no assumption that other years share it. Original broker's 2013 vessel PDF names Volvo Penta D3-110HK; HK is the local horsepower label, not an added engine suffix."
                }
              ],
              "selectionPower": {
                "kw": 81,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://www.dbmoteurs.fr/sites/default/files/47701949_FR-VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 81
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-618360-volvopenta-d3150-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-150",
              "engineDisplayName": "Volvo Penta D3-150",
              "engineReferenceId": "review_volvopenta_d3150",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Solaris Yachts brokerage's 2015 Hanse 575. Registry covers 2014, 2015 and 2016. Source writes D3 150; punctuation normalized without changing identity.",
              "source": {
                "id": "hanse-mixed-h575-2015",
                "title": "Solaris Yachts brokerage: 2015 Hanse 575",
                "url": "https://www.solarisyachts.com/cms/wp-content/uploads/Hanse_575_Brokerage_EN_V2.pdf",
                "kind": "documented-vessel-example",
                "locator": "Page 4 / ENGINES - PROPULSION",
                "evidence": "Original brokerage brochure identifies VOLVO PENTA D3 150 with shaft transmission on a 2015 Hanse 575.",
                "note": "Only Solaris Yachts brokerage's 2015 Hanse 575. Registry covers 2014, 2015 and 2016. Source writes D3 150; punctuation normalized without changing identity. Original brokerage brochure identifies VOLVO PENTA D3 150 with shaft transmission on a 2015 Hanse 575."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h575-2015",
                  "title": "Solaris Yachts brokerage: 2015 Hanse 575",
                  "url": "https://www.solarisyachts.com/cms/wp-content/uploads/Hanse_575_Brokerage_EN_V2.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Page 4 / ENGINES - PROPULSION",
                  "evidence": "Original brokerage brochure identifies VOLVO PENTA D3 150 with shaft transmission on a 2015 Hanse 575.",
                  "note": "Only Solaris Yachts brokerage's 2015 Hanse 575. Registry covers 2014, 2015 and 2016. Source writes D3 150; punctuation normalized without changing identity. Original brokerage brochure identifies VOLVO PENTA D3 150 with shaft transmission on a 2015 Hanse 575."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://manualzilla.com/doc/6385253/manuel-d-instructions",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide%20de%20l%27utilisateur%20D3.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 575\" engine Volvo model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-618360-volvopenta-d3110-1"
        },
        {
          "name": "Hanse 588",
          "boatType": "sailing-yacht",
          "yachtModelId": 1360533,
          "sourceModelIds": [
            1360533,
            4487076,
            10260055
          ],
          "sourceModelNames": [
            "Hanse 588 - 3 + 1 cab.",
            "Hanse 588 - 4 + 1 cab.",
            "Hanse 588 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1360533-volvopenta-d3150-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-150",
              "engineDisplayName": "Volvo Penta D3-150",
              "engineReferenceId": "review_volvopenta_d3150",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only 2018 Magma, outside the registry's sampled years 2017, 2020, 2022, 2023, 2024 and 2025. Does not establish a Volvo installation for any of those individual boats.",
              "source": {
                "id": "hanse-mixed-h588-2018",
                "title": "De Valk: 2018 Hanse 588 Magma",
                "url": "https://www.devalk.nl/en/yachtbrokerage/812828/HANSE-588.html",
                "kind": "documented-vessel-example",
                "locator": "Built / Machinery",
                "evidence": "Original broker specifies one Volvo Penta D3-150, 150 hp, on its 2018 Hanse 588 Magma.",
                "note": "Only 2018 Magma, outside the registry's sampled years 2017, 2020, 2022, 2023, 2024 and 2025. Does not establish a Volvo installation for any of those individual boats. Original broker specifies one Volvo Penta D3-150, 150 hp, on its 2018 Hanse 588 Magma."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h588-2018",
                  "title": "De Valk: 2018 Hanse 588 Magma",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/812828/HANSE-588.html",
                  "kind": "documented-vessel-example",
                  "locator": "Built / Machinery",
                  "evidence": "Original broker specifies one Volvo Penta D3-150, 150 hp, on its 2018 Hanse 588 Magma.",
                  "note": "Only 2018 Magma, outside the registry's sampled years 2017, 2020, 2022, 2023, 2024 and 2025. Does not establish a Volvo installation for any of those individual boats. Original broker specifies one Volvo Penta D3-150, 150 hp, on its 2018 Hanse 588 Magma."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://manualzilla.com/doc/6385253/manuel-d-instructions",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide%20de%20l%27utilisateur%20D3.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1360533-yanmar-4lv150-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV150",
              "engineDisplayName": "Yanmar 4LV150",
              "engineReferenceId": "review_yanmar_4lv150",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only De Valk reference 812536, engine installed 2024. Registry includes 2024 among sampled years 2017-2025. Installation date alone is not confirmation of build year or universal changeover.",
              "source": {
                "id": "hanse-mixed-h588-2024",
                "title": "De Valk: Hanse 588, reference 812536",
                "url": "https://www.devalk.nl/nl/brochure_full/812536/HANSE-588.html",
                "kind": "documented-vessel-example",
                "locator": "MOTOR(EN) / Type / Geinstalleerd in jaar",
                "evidence": "Original brokerage brochure identifies one Yanmar 4LV150, 150 hp, installed in 2024.",
                "note": "Only De Valk reference 812536, engine installed 2024. Registry includes 2024 among sampled years 2017-2025. Installation date alone is not confirmation of build year or universal changeover. Original brokerage brochure identifies one Yanmar 4LV150, 150 hp, installed in 2024."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h588-2024",
                  "title": "De Valk: Hanse 588, reference 812536",
                  "url": "https://www.devalk.nl/nl/brochure_full/812536/HANSE-588.html",
                  "kind": "documented-vessel-example",
                  "locator": "MOTOR(EN) / Type / Geinstalleerd in jaar",
                  "evidence": "Original brokerage brochure identifies one Yanmar 4LV150, 150 hp, installed in 2024.",
                  "note": "Only De Valk reference 812536, engine installed 2024. Registry includes 2024 among sampled years 2017-2025. Installation date alone is not confirmation of build year or universal changeover. Original brokerage brochure identifies one Yanmar 4LV150, 150 hp, installed in 2024."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1018_HR.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/YANMAR_DS_4LV150170195_A4_2020_0512.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 588\" engine Volvo Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1360533-volvopenta-d3150-1"
        },
        {
          "name": "Hanse 590",
          "boatType": "sailing-yacht",
          "yachtModelId": 50892507,
          "sourceModelIds": [
            50892507
          ],
          "sourceModelNames": [
            "Hanse 590"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-50892507-yanmar-4lv150-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV150",
              "engineDisplayName": "Yanmar 4LV150",
              "engineReferenceId": "review_yanmar_4lv150",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Croatia Yachting's 2025 Hanse 590 in Kastela. Registry covers 2025 and 2026; this is a 2025 observed installation, not proof for every 2026 boat.",
              "source": {
                "id": "hanse-mixed-h590-2025",
                "title": "Croatia Yachting: 2025 Hanse 590 in Kastela",
                "url": "https://www.yachtworld.com/yacht/2025-hanse-590-9859175/",
                "kind": "documented-vessel-example",
                "locator": "Croatia Yachting seller description / Propulsion",
                "evidence": "Official Hanse dealer's 2025 vessel listing explicitly identifies one Yanmar 4LV150; power is published as 110 kW in the matching boats.com listing.",
                "note": "Only Croatia Yachting's 2025 Hanse 590 in Kastela. Registry covers 2025 and 2026; this is a 2025 observed installation, not proof for every 2026 boat. Official Hanse dealer's 2025 vessel listing explicitly identifies one Yanmar 4LV150; power is published as 110 kW in the matching boats.com listing."
              },
              "sources": [
                {
                  "id": "hanse-mixed-h590-2025",
                  "title": "Croatia Yachting: 2025 Hanse 590 in Kastela",
                  "url": "https://www.yachtworld.com/yacht/2025-hanse-590-9859175/",
                  "kind": "documented-vessel-example",
                  "locator": "Croatia Yachting seller description / Propulsion",
                  "evidence": "Official Hanse dealer's 2025 vessel listing explicitly identifies one Yanmar 4LV150; power is published as 110 kW in the matching boats.com listing.",
                  "note": "Only Croatia Yachting's 2025 Hanse 590 in Kastela. Registry covers 2025 and 2026; this is a 2025 observed installation, not proof for every 2026 boat. Official Hanse dealer's 2025 vessel listing explicitly identifies one Yanmar 4LV150; power is published as 110 kW in the matching boats.com listing."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1018_HR.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/YANMAR_DS_4LV150170195_A4_2020_0512.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Hanse 590\" engine model Yanmar",
              "Hanse 590 Yanmar engine model",
              "\"Hanse 590\" \"4LV150\" \"Croatia Yachting\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-50892507-yanmar-4lv150-1"
        }
      ]
    },
    {
      "name": "Jeanneau",
      "models": [
        {
          "name": "Jeanneau 53",
          "boatType": "sailing-yacht",
          "yachtModelId": 855186,
          "sourceModelIds": [
            855186
          ],
          "sourceModelNames": [
            "Jeanneau 53 - 5 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-855186-yanmar-4jh4hte-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-HTE",
              "engineDisplayName": "Yanmar 4JH4-HTE",
              "engineReferenceId": "yanmar_4jh4_hte",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the broker's 2011 Jeanneau 53 example; not proof of factory standard or of the catalogue's 2014 hull. Catalogue build years reviewed: 2011, 2014.",
              "source": {
                "id": "js-j53-storm",
                "title": "Storm Yachting: 2011 Jeanneau 53",
                "url": "https://stormyachting.com/sailing-yachts/2011-jeanneau-53/",
                "kind": "documented-vessel-example",
                "locator": "Engine & Machinery; Engine Type and Engine Date",
                "evidence": "The broker's 2011 vessel lists a Yanmar 4JH4-HTE main diesel, with engine date 2011 and advertised power 110 hp.",
                "note": "Only the broker's 2011 Jeanneau 53 example; not proof of factory standard or of the catalogue's 2014 hull. Catalogue build years reviewed: 2011, 2014. The broker's 2011 vessel lists a Yanmar 4JH4-HTE main diesel, with engine date 2011 and advertised power 110 hp."
              },
              "sources": [
                {
                  "id": "js-j53-storm",
                  "title": "Storm Yachting: 2011 Jeanneau 53",
                  "url": "https://stormyachting.com/sailing-yachts/2011-jeanneau-53/",
                  "kind": "documented-vessel-example",
                  "locator": "Engine & Machinery; Engine Type and Engine Date",
                  "evidence": "The broker's 2011 vessel lists a Yanmar 4JH4-HTE main diesel, with engine date 2011 and advertised power 110 hp.",
                  "note": "Only the broker's 2011 Jeanneau 53 example; not proof of factory standard or of the catalogue's 2014 hull. Catalogue build years reviewed: 2011, 2014. The broker's 2011 vessel lists a Yanmar 4JH4-HTE main diesel, with engine date 2011 and advertised power 110 hp."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Jeanneau 53 2011 engine Yanmar 4JH4"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-855186-yanmar-4jh4hte-1"
        },
        {
          "name": "Jeanneau 54",
          "boatType": "sailing-yacht",
          "yachtModelId": 1050362,
          "sourceModelIds": [
            1050362,
            1073746,
            7913531
          ],
          "sourceModelNames": [
            "Jeanneau 54 - 4 + 1 cab.",
            "Jeanneau 54 - 5 + 1 cab.",
            "Jeanneau 54 - 6 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1050362-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the broker's 2017 Jeanneau 54, reference 812290; not a claim about every 2016, 2017 or 2023 boat. Catalogue build years reviewed: 2016, 2017, 2023.",
              "source": {
                "id": "js-j54-devalk",
                "title": "De Valk: Jeanneau 54, reference 812290",
                "url": "https://www.devalk.nl/nl/jachtmakelaardij/812290/JEANNEAU-54.html",
                "kind": "documented-vessel-example",
                "locator": "Bouwjaar and Motor(en); search-indexed passage",
                "evidence": "The broker identifies a 2017 Jeanneau 54 with one Yanmar 4JH80 diesel rated 80 hp.",
                "note": "Only the broker's 2017 Jeanneau 54, reference 812290; not a claim about every 2016, 2017 or 2023 boat. Catalogue build years reviewed: 2016, 2017, 2023. The broker identifies a 2017 Jeanneau 54 with one Yanmar 4JH80 diesel rated 80 hp."
              },
              "sources": [
                {
                  "id": "js-j54-devalk",
                  "title": "De Valk: Jeanneau 54, reference 812290",
                  "url": "https://www.devalk.nl/nl/jachtmakelaardij/812290/JEANNEAU-54.html",
                  "kind": "documented-vessel-example",
                  "locator": "Bouwjaar and Motor(en); search-indexed passage",
                  "evidence": "The broker identifies a 2017 Jeanneau 54 with one Yanmar 4JH80 diesel rated 80 hp.",
                  "note": "Only the broker's 2017 Jeanneau 54, reference 812290; not a claim about every 2016, 2017 or 2023 boat. Catalogue build years reviewed: 2016, 2017, 2023. The broker identifies a 2017 Jeanneau 54 with one Yanmar 4JH80 diesel rated 80 hp."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1050362-yanmar-4jh110-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only G. Winter's Sailing Center's 2017 Jeanneau 54 Second Wind. Keep separate from the 4JH80 example; no claim that every charter layout has this engine. Catalogue build years reviewed: 2016, 2017, 2023.",
              "source": {
                "id": "js-j54-second-wind",
                "title": "G. Winter's Sailing Center: 2017 Jeanneau 54 Second Wind",
                "url": "https://www.yachtworld.com/yacht/2017-jeanneau-54-10130239/",
                "kind": "documented-vessel-example",
                "locator": "Seller description and Propulsion; original selling-broker listing hosted on YachtWorld",
                "evidence": "The selling broker identifies the 2017 Jeanneau 54 Second Wind and a Yanmar 4JH110 diesel rated 110 hp. This is an individual vessel, not a model-wide standard.",
                "note": "Only G. Winter's Sailing Center's 2017 Jeanneau 54 Second Wind. Keep separate from the 4JH80 example; no claim that every charter layout has this engine. Catalogue build years reviewed: 2016, 2017, 2023. The selling broker identifies the 2017 Jeanneau 54 Second Wind and a Yanmar 4JH110 diesel rated 110 hp. This is an individual vessel, not a model-wide standard."
              },
              "sources": [
                {
                  "id": "js-j54-second-wind",
                  "title": "G. Winter's Sailing Center: 2017 Jeanneau 54 Second Wind",
                  "url": "https://www.yachtworld.com/yacht/2017-jeanneau-54-10130239/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller description and Propulsion; original selling-broker listing hosted on YachtWorld",
                  "evidence": "The selling broker identifies the 2017 Jeanneau 54 Second Wind and a Yanmar 4JH110 diesel rated 110 hp. This is an individual vessel, not a model-wide standard.",
                  "note": "Only G. Winter's Sailing Center's 2017 Jeanneau 54 Second Wind. Keep separate from the 4JH80 example; no claim that every charter layout has this engine. Catalogue build years reviewed: 2016, 2017, 2023. The selling broker identifies the 2017 Jeanneau 54 Second Wind and a Yanmar 4JH110 diesel rated 110 hp. This is an individual vessel, not a model-wide standard."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Jeanneau 54 2017 engine Yanmar 4JH110",
              "\"Jeanneau 54\" \"4JH80\" price pdf",
              "\"Jeanneau 54\" \"Second Wind\" \"4JH110\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1050362-yanmar-4jh80-1"
        },
        {
          "name": "Jeanneau 60",
          "boatType": "sailing-yacht",
          "yachtModelId": 13356601,
          "sourceModelIds": [
            13356601
          ],
          "sourceModelNames": [
            "Jeanneau 60"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-13356601-yanmar-4lv150cr-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV150CR",
              "engineDisplayName": "Yanmar 4LV150CR",
              "engineReferenceId": "review_yanmar_4lv150cr",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Jeanneau Yachts 60 propulsion package in the January 2025 manufacturer price list. Same named contemporary design, but the catalogue's individual 2023 hull is not verified; do not infer an installation or retrofit date. Catalogue build years reviewed: 2023.",
              "source": {
                "id": "js-j60-price",
                "title": "Jeanneau Yachts 60 manufacturer price list, B2025 January 2025",
                "url": "https://www.kiriacoulis.com/sales/JeanneauYachts60_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION, code A *1 1ZI0",
                "evidence": "The Jeanneau-issued order/price sheet offers the Jeanneau Yachts 60 with a Yanmar 4LV150CR, 150 hp, shaft-drive propulsion package.",
                "note": "Jeanneau Yachts 60 propulsion package in the January 2025 manufacturer price list. Same named contemporary design, but the catalogue's individual 2023 hull is not verified; do not infer an installation or retrofit date. Catalogue build years reviewed: 2023. The Jeanneau-issued order/price sheet offers the Jeanneau Yachts 60 with a Yanmar 4LV150CR, 150 hp, shaft-drive propulsion package."
              },
              "sources": [
                {
                  "id": "js-j60-price",
                  "title": "Jeanneau Yachts 60 manufacturer price list, B2025 January 2025",
                  "url": "https://www.kiriacoulis.com/sales/JeanneauYachts60_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION, code A *1 1ZI0",
                  "evidence": "The Jeanneau-issued order/price sheet offers the Jeanneau Yachts 60 with a Yanmar 4LV150CR, 150 hp, shaft-drive propulsion package.",
                  "note": "Jeanneau Yachts 60 propulsion package in the January 2025 manufacturer price list. Same named contemporary design, but the catalogue's individual 2023 hull is not verified; do not infer an installation or retrofit date. Catalogue build years reviewed: 2023. The Jeanneau-issued order/price sheet offers the Jeanneau Yachts 60 with a Yanmar 4LV150CR, 150 hp, shaft-drive propulsion package."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1018_HR.pdf",
                  "https://www.kiriacoulis.it/wp-content/uploads/2020/02/JeanneauYachts60_price.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Jeanneau 60 engine 4LV 150"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-13356601-yanmar-4lv150cr-1"
        },
        {
          "name": "Jeanneau 64",
          "boatType": "sailing-yacht",
          "yachtModelId": 23986641,
          "sourceModelIds": [
            23986641
          ],
          "sourceModelNames": [
            "Jeanneau 64 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-23986641-volvopenta-d4180-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D4-180",
              "engineDisplayName": "Volvo Penta D4-180",
              "engineReferenceId": "review_volvopenta_d4180",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Jeanneau 64 manufacturer equipment inventory available in the 2019-era archive, not the later Jeanneau 65. Catalogue years 2016 and 2019 still require individual engine-plate confirmation. Catalogue build years reviewed: 2016, 2019.",
              "source": {
                "id": "js-j64-inventory",
                "title": "Jeanneau 64 manufacturer inventory: ENGINE & THRUSTER",
                "url": "https://app.jeanneau.com/inventory/17919",
                "kind": "manufacturer-specification",
                "locator": "ENGINE & THRUSTER; search-indexed passage",
                "evidence": "Jeanneau's 64 equipment inventory names the Volvo D4-180 and gives 180 hp / 132 kW with shaft and gearbox details.",
                "note": "Jeanneau 64 manufacturer equipment inventory available in the 2019-era archive, not the later Jeanneau 65. Catalogue years 2016 and 2019 still require individual engine-plate confirmation. Catalogue build years reviewed: 2016, 2019. Jeanneau's 64 equipment inventory names the Volvo D4-180 and gives 180 hp / 132 kW with shaft and gearbox details."
              },
              "sources": [
                {
                  "id": "js-j64-inventory",
                  "title": "Jeanneau 64 manufacturer inventory: ENGINE & THRUSTER",
                  "url": "https://app.jeanneau.com/inventory/17919",
                  "kind": "manufacturer-specification",
                  "locator": "ENGINE & THRUSTER; search-indexed passage",
                  "evidence": "Jeanneau's 64 equipment inventory names the Volvo D4-180 and gives 180 hp / 132 kW with shaft and gearbox details.",
                  "note": "Jeanneau 64 manufacturer equipment inventory available in the 2019-era archive, not the later Jeanneau 65. Catalogue years 2016 and 2019 still require individual engine-plate confirmation. Catalogue build years reviewed: 2016, 2019. Jeanneau's 64 equipment inventory names the Volvo D4-180 and gives 180 hp / 132 kW with shaft and gearbox details."
                }
              ],
              "selectionPower": {
                "kw": 132,
                "sources": [
                  "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
                  "https://sermakpower.com/brosur/keyif-tekne/t_d4_180.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 132
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "Jeanneau 64 engine Volvo D4 180"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23986641-volvopenta-d4180-1"
        },
        {
          "name": "Sun Odyssey 33i",
          "boatType": "sailing-yacht",
          "yachtModelId": 100354,
          "sourceModelIds": [
            100354
          ],
          "sourceModelNames": [
            "Sun Odyssey 33i - 2 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100354-yanmar-3ym20-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Original preliminary Sun Odyssey 33i model brochure. A published configuration for this design, not proof that each of the catalogue's 2011-2015 boats retains the original engine. Catalogue build years reviewed: 2011, 2012, 2013, 2014, 2015.",
              "source": {
                "id": "js-so33i-brochure",
                "title": "Jeanneau Sun Odyssey 33i original preliminary brochure",
                "url": "https://www.voile-et-vie.fr/docs/brochure-sun-odyssey-33i.pdf",
                "kind": "manufacturer-specification",
                "locator": "Specifications table, Motorisation Maxi / Engine / Motor",
                "evidence": "The original Jeanneau model brochure explicitly lists Yanmar 3YM20, 21 hp / 15 kW, for the Sun Odyssey 33i.",
                "note": "Original preliminary Sun Odyssey 33i model brochure. A published configuration for this design, not proof that each of the catalogue's 2011-2015 boats retains the original engine. Catalogue build years reviewed: 2011, 2012, 2013, 2014, 2015. The original Jeanneau model brochure explicitly lists Yanmar 3YM20, 21 hp / 15 kW, for the Sun Odyssey 33i."
              },
              "sources": [
                {
                  "id": "js-so33i-brochure",
                  "title": "Jeanneau Sun Odyssey 33i original preliminary brochure",
                  "url": "https://www.voile-et-vie.fr/docs/brochure-sun-odyssey-33i.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Specifications table, Motorisation Maxi / Engine / Motor",
                  "evidence": "The original Jeanneau model brochure explicitly lists Yanmar 3YM20, 21 hp / 15 kW, for the Sun Odyssey 33i.",
                  "note": "Original preliminary Sun Odyssey 33i model brochure. A published configuration for this design, not proof that each of the catalogue's 2011-2015 boats retains the original engine. Catalogue build years reviewed: 2011, 2012, 2013, 2014, 2015. The original Jeanneau model brochure explicitly lists Yanmar 3YM20, 21 hp / 15 kW, for the Sun Odyssey 33i."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 33i\" \"3YM20\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100354-yanmar-3ym20-1"
        },
        {
          "name": "Sun Odyssey 35",
          "boatType": "sailing-yacht",
          "yachtModelId": 57,
          "sourceModelIds": [
            57
          ],
          "sourceModelNames": [
            "Sun Odyssey 35"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-57-yanmar-3gm30f-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3GM30F",
              "engineDisplayName": "Yanmar 3GM30F",
              "engineReferenceId": "review_yanmar_3gm30f",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Coneys Marine's 2003 Sun Odyssey 35 example. The F suffix is explicitly present in the seller's description; do not infer it for other 35s. Catalogue build years reviewed: 2003.",
              "source": {
                "id": "js-so35-coneys",
                "title": "Coneys Marine: 2003 Jeanneau Sun Odyssey 35",
                "url": "https://www.boattrader.com/boat/2003-jeanneau-sun-odyssey-35-10176244/",
                "kind": "documented-vessel-example",
                "locator": "Seller's Boat Details, Description and Engine Maintenance/Upgrades; Propulsion",
                "evidence": "The original Coneys Marine listing explicitly names Yanmar 3GM30F in its seller description and propulsion fields for the 2003 boat; maintenance records are also specific to that engine.",
                "note": "Only Coneys Marine's 2003 Sun Odyssey 35 example. The F suffix is explicitly present in the seller's description; do not infer it for other 35s. Catalogue build years reviewed: 2003. The original Coneys Marine listing explicitly names Yanmar 3GM30F in its seller description and propulsion fields for the 2003 boat; maintenance records are also specific to that engine."
              },
              "sources": [
                {
                  "id": "js-so35-coneys",
                  "title": "Coneys Marine: 2003 Jeanneau Sun Odyssey 35",
                  "url": "https://www.boattrader.com/boat/2003-jeanneau-sun-odyssey-35-10176244/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller's Boat Details, Description and Engine Maintenance/Upgrades; Propulsion",
                  "evidence": "The original Coneys Marine listing explicitly names Yanmar 3GM30F in its seller description and propulsion fields for the 2003 boat; maintenance records are also specific to that engine.",
                  "note": "Only Coneys Marine's 2003 Sun Odyssey 35 example. The F suffix is explicitly present in the seller's description; do not infer it for other 35s. Catalogue build years reviewed: 2003. The original Coneys Marine listing explicitly names Yanmar 3GM30F in its seller description and propulsion fields for the 2003 boat; maintenance records are also specific to that engine."
                }
              ],
              "selectionPower": {
                "kw": 20.1,
                "sources": [
                  "https://manuals.plus/m/4aa6cf1f22f7758b5ff0ed1abdef8b474eda37ff2418c0974ce53adbeab3eab5.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 20.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2003",
              "label": "2003 build",
              "year": 2003,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 35\" \"3GM30\" 2003",
              "\"Sun Odyssey 35\" \"3GM30F\" Coneys Marine"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-57-yanmar-3gm30f-1"
        },
        {
          "name": "Sun Odyssey 36i",
          "boatType": "sailing-yacht",
          "yachtModelId": 52,
          "sourceModelIds": [
            52
          ],
          "sourceModelNames": [
            "Sun Odyssey 36i"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-52-yanmar-3ym30-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only WINDSWEPT, the charter operator's 2012 Sun Odyssey 36i. Not identification of either Croatian catalogue boat. Catalogue build years reviewed: 2012.",
              "source": {
                "id": "js-so36i-windward",
                "title": "Windward Sailing Charters: 2012 Sun Odyssey 36i WINDSWEPT",
                "url": "https://www.windwardcharters.com/sailboat-details-windswept",
                "kind": "documented-vessel-example",
                "locator": "Features & Specifications and Propulsion",
                "evidence": "The charter operator identifies WINDSWEPT as a 2012 Jeanneau Sun Odyssey 36i and lists Yanmar 3YM30 Diesel 29 HP.",
                "note": "Only WINDSWEPT, the charter operator's 2012 Sun Odyssey 36i. Not identification of either Croatian catalogue boat. Catalogue build years reviewed: 2012. The charter operator identifies WINDSWEPT as a 2012 Jeanneau Sun Odyssey 36i and lists Yanmar 3YM30 Diesel 29 HP."
              },
              "sources": [
                {
                  "id": "js-so36i-windward",
                  "title": "Windward Sailing Charters: 2012 Sun Odyssey 36i WINDSWEPT",
                  "url": "https://www.windwardcharters.com/sailboat-details-windswept",
                  "kind": "documented-vessel-example",
                  "locator": "Features & Specifications and Propulsion",
                  "evidence": "The charter operator identifies WINDSWEPT as a 2012 Jeanneau Sun Odyssey 36i and lists Yanmar 3YM30 Diesel 29 HP.",
                  "note": "Only WINDSWEPT, the charter operator's 2012 Sun Odyssey 36i. Not identification of either Croatian catalogue boat. Catalogue build years reviewed: 2012. The charter operator identifies WINDSWEPT as a 2012 Jeanneau Sun Odyssey 36i and lists Yanmar 3YM30 Diesel 29 HP."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 36i\" \"3YM30\" 2012"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-52-yanmar-3ym30-1"
        },
        {
          "name": "Sun Odyssey 42i",
          "boatType": "sailing-yacht",
          "yachtModelId": 100258,
          "sourceModelIds": [
            100258
          ],
          "sourceModelNames": [
            "Sun Odyssey 42i"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100258-yanmar-4jh4e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-E",
              "engineDisplayName": "Yanmar 4JH4-E",
              "engineReferenceId": "review_yanmar_4jh4e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the 2007 Sun Odyssey 42i in Batagent's equipment list, engine E04861. Preserve the E designation as published; the catalogue also contains 2008 boats that this source does not identify. Catalogue build years reviewed: 2007, 2008.",
              "source": {
                "id": "js-so42i-batagent",
                "title": "Batagent: 2007 Sun Odyssey 42i equipment list",
                "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-v2-2.pdf",
                "kind": "documented-vessel-example",
                "locator": "Page 1, title SUN ODYSSEY 42i, 2007 and Motor; revision 2018-05-24",
                "evidence": "The broker's equipment sheet identifies a Yanmar 4JH4-E, engine number E04861, in the 2007 Sun Odyssey 42i.",
                "note": "Only the 2007 Sun Odyssey 42i in Batagent's equipment list, engine E04861. Preserve the E designation as published; the catalogue also contains 2008 boats that this source does not identify. Catalogue build years reviewed: 2007, 2008. The broker's equipment sheet identifies a Yanmar 4JH4-E, engine number E04861, in the 2007 Sun Odyssey 42i."
              },
              "sources": [
                {
                  "id": "js-so42i-batagent",
                  "title": "Batagent: 2007 Sun Odyssey 42i equipment list",
                  "url": "https://batagent.se/wp-content/uploads/2023/06/import/utrustningslista-v2-2.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Page 1, title SUN ODYSSEY 42i, 2007 and Motor; revision 2018-05-24",
                  "evidence": "The broker's equipment sheet identifies a Yanmar 4JH4-E, engine number E04861, in the 2007 Sun Odyssey 42i.",
                  "note": "Only the 2007 Sun Odyssey 42i in Batagent's equipment list, engine E04861. Preserve the E designation as published; the catalogue also contains 2008 boats that this source does not identify. Catalogue build years reviewed: 2007, 2008. The broker's equipment sheet identifies a Yanmar 4JH4-E, engine number E04861, in the 2007 Sun Odyssey 42i."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://irp.cdn-website.com/76471e1f/files/uploaded/4JH4E_%2854hp%29TechData.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 42i\" engine Yanmar model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100258-yanmar-4jh4e-1"
        },
        {
          "name": "Sun Odyssey 44i",
          "boatType": "sailing-yacht",
          "yachtModelId": 100257,
          "sourceModelIds": [
            100257
          ],
          "sourceModelNames": [
            "Sun Odyssey 44i"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100257-yanmar-4jh4e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4E",
              "engineDisplayName": "Yanmar 4JH4E",
              "engineReferenceId": "review_yanmar_4jh4e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Reported identity only for the 2011 broker example, reference 813586, outside the catalogue's 2009 year. The same listing says 75 hp, an internally questionable pairing; omit that rating and require engine-plate verification. Do not silently change E to TE or use a TE curve. Catalogue build years reviewed: 2009.",
              "source": {
                "id": "js-so44i-devalk-e",
                "title": "De Valk: 2011 Sun Odyssey 44i, reference 813586",
                "url": "https://www.devalk.nl/en/yachtbrokerage/813586/JEANNEAU-SUN-ODYSSEY-44I.html",
                "kind": "documented-vessel-example",
                "locator": "General and Machinery; search-indexed passage",
                "evidence": "The broker names one Yanmar 4JH4E in a 2011 Sun Odyssey 44i. The listing also calls it 75 hp, a questionable pairing; that power is not carried into the setup.",
                "note": "Reported identity only for the 2011 broker example, reference 813586, outside the catalogue's 2009 year. The same listing says 75 hp, an internally questionable pairing; omit that rating and require engine-plate verification. Do not silently change E to TE or use a TE curve. Catalogue build years reviewed: 2009. The broker names one Yanmar 4JH4E in a 2011 Sun Odyssey 44i. The listing also calls it 75 hp, a questionable pairing; that power is not carried into the setup."
              },
              "sources": [
                {
                  "id": "js-so44i-devalk-e",
                  "title": "De Valk: 2011 Sun Odyssey 44i, reference 813586",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/813586/JEANNEAU-SUN-ODYSSEY-44I.html",
                  "kind": "documented-vessel-example",
                  "locator": "General and Machinery; search-indexed passage",
                  "evidence": "The broker names one Yanmar 4JH4E in a 2011 Sun Odyssey 44i. The listing also calls it 75 hp, a questionable pairing; that power is not carried into the setup.",
                  "note": "Reported identity only for the 2011 broker example, reference 813586, outside the catalogue's 2009 year. The same listing says 75 hp, an internally questionable pairing; omit that rating and require engine-plate verification. Do not silently change E to TE or use a TE curve. Catalogue build years reviewed: 2009. The broker names one Yanmar 4JH4E in a 2011 Sun Odyssey 44i. The listing also calls it 75 hp, a questionable pairing; that power is not carried into the setup."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://irp.cdn-website.com/76471e1f/files/uploaded/4JH4E_%2854hp%29TechData.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-100257-yanmar-4jh4te-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-TE",
              "engineDisplayName": "Yanmar 4JH4-TE",
              "engineReferenceId": "review_yanmar_4jh4te",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the broker's Sun Odyssey 44i with engine installed in 2009, reference 812357. Search-indexed primary broker evidence; direct access returned a server error. Not a universal standard. Catalogue build years reviewed: 2009.",
              "source": {
                "id": "js-so44i-devalk-te",
                "title": "De Valk: Sun Odyssey 44i, reference 812357",
                "url": "https://www.devalk.nl/en/brochure_full/812357/JEANNEAU-SUN-ODYSSEY-44I.html",
                "kind": "documented-vessel-example",
                "locator": "Machinery, page 3; search-indexed passage (direct open returned a server error)",
                "evidence": "The broker's indexed machinery table explicitly lists one Yanmar 4JH4-TE, 75 hp, installed in 2009. Its SD50-4T field describes a gearbox/drive, not the engine.",
                "note": "Only the broker's Sun Odyssey 44i with engine installed in 2009, reference 812357. Search-indexed primary broker evidence; direct access returned a server error. Not a universal standard. Catalogue build years reviewed: 2009. The broker's indexed machinery table explicitly lists one Yanmar 4JH4-TE, 75 hp, installed in 2009. Its SD50-4T field describes a gearbox/drive, not the engine."
              },
              "sources": [
                {
                  "id": "js-so44i-devalk-te",
                  "title": "De Valk: Sun Odyssey 44i, reference 812357",
                  "url": "https://www.devalk.nl/en/brochure_full/812357/JEANNEAU-SUN-ODYSSEY-44I.html",
                  "kind": "documented-vessel-example",
                  "locator": "Machinery, page 3; search-indexed passage (direct open returned a server error)",
                  "evidence": "The broker's indexed machinery table explicitly lists one Yanmar 4JH4-TE, 75 hp, installed in 2009. Its SD50-4T field describes a gearbox/drive, not the engine.",
                  "note": "Only the broker's Sun Odyssey 44i with engine installed in 2009, reference 812357. Search-indexed primary broker evidence; direct access returned a server error. Not a universal standard. Catalogue build years reviewed: 2009. The broker's indexed machinery table explicitly lists one Yanmar 4JH4-TE, 75 hp, installed in 2009. Its SD50-4T field describes a gearbox/drive, not the engine."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH4-TE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55.2
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 44i\" engine Yanmar model",
              "\"Sun Odyssey 44i\" \"4JH4E\" brochure pdf"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100257-yanmar-4jh4e-1"
        },
        {
          "name": "Sun Odyssey 45",
          "boatType": "sailing-yacht",
          "yachtModelId": 54,
          "sourceModelIds": [
            54
          ],
          "sourceModelNames": [
            "Sun Odyssey 45"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-54-yanmar-4jh3te-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH3TE",
              "engineDisplayName": "Yanmar 4JH3TE",
              "engineReferenceId": "review_yanmar_4jh3te",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Idefix 4, built 2006, HIN FRIR100157C606, in eSailing's listing. Do not merge with 45 DS or 45.2. Catalogue build years reviewed: 2006.",
              "source": {
                "id": "js-so45-esailing",
                "title": "eSailing: 2006 Sun Odyssey 45 Idefix 4",
                "url": "https://esailing.nl/en/boats/sold-boats/618/jeanneau-sun-odyssey-45",
                "kind": "documented-vessel-example",
                "locator": "General description and Engine; search-indexed passage",
                "evidence": "The broker identifies Idefix 4, built 2006, and explicitly lists a Yanmar 4JH3TE turbodiesel rated 75 hp, engine number E16140.",
                "note": "Only Idefix 4, built 2006, HIN FRIR100157C606, in eSailing's listing. Do not merge with 45 DS or 45.2. Catalogue build years reviewed: 2006. The broker identifies Idefix 4, built 2006, and explicitly lists a Yanmar 4JH3TE turbodiesel rated 75 hp, engine number E16140."
              },
              "sources": [
                {
                  "id": "js-so45-esailing",
                  "title": "eSailing: 2006 Sun Odyssey 45 Idefix 4",
                  "url": "https://esailing.nl/en/boats/sold-boats/618/jeanneau-sun-odyssey-45",
                  "kind": "documented-vessel-example",
                  "locator": "General description and Engine; search-indexed passage",
                  "evidence": "The broker identifies Idefix 4, built 2006, and explicitly lists a Yanmar 4JH3TE turbodiesel rated 75 hp, engine number E16140.",
                  "note": "Only Idefix 4, built 2006, HIN FRIR100157C606, in eSailing's listing. Do not merge with 45 DS or 45.2. Catalogue build years reviewed: 2006. The broker identifies Idefix 4, built 2006, and explicitly lists a Yanmar 4JH3TE turbodiesel rated 75 hp, engine number E16140."
                }
              ],
              "selectionPower": {
                "kw": 53.5,
                "sources": [
                  "https://nhmr.nl/wp-content/uploads/2022/03/YANMAR-USE-AND-MAINTENANCE-4JH3-TE-TCE-HTE-DTE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 53.5
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 45\" \"2006\" engine Yanmar"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-54-yanmar-4jh3te-1"
        },
        {
          "name": "Sun Odyssey 49",
          "boatType": "sailing-yacht",
          "yachtModelId": 55,
          "sourceModelIds": [
            55
          ],
          "sourceModelNames": [
            "Sun Odyssey 49"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-55-yanmar-4jh3hte-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH3HTE",
              "engineDisplayName": "Yanmar 4JH3HTE",
              "engineReferenceId": "review_yanmar_4jh3hte",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only De Valk's 2006 Sun Odyssey 49, reference 811031, engine installed 2006. Source prints 4JH 3HTE; only the internal space is normalized. Its 90 hp claim is not used as a reliable rated value. Not the 49i or 49 DS. Catalogue build years reviewed: 2006.",
              "source": {
                "id": "js-so49-devalk",
                "title": "De Valk: 2006 Sun Odyssey 49, reference 811031",
                "url": "https://www.devalk.nl/en/yachtbrokerage/811031/JEANNEAU-SUN-ODYSSEY-49.html",
                "kind": "documented-vessel-example",
                "locator": "General and Machinery",
                "evidence": "The broker identifies a 2006 Sun Odyssey 49 with one Yanmar 4JH 3HTE, installed 2006. The advertised 90 hp is retained only as source context, not used to derive the engine identity.",
                "note": "Only De Valk's 2006 Sun Odyssey 49, reference 811031, engine installed 2006. Source prints 4JH 3HTE; only the internal space is normalized. Its 90 hp claim is not used as a reliable rated value. Not the 49i or 49 DS. Catalogue build years reviewed: 2006. The broker identifies a 2006 Sun Odyssey 49 with one Yanmar 4JH 3HTE, installed 2006. The advertised 90 hp is retained only as source context, not used to derive the engine identity."
              },
              "sources": [
                {
                  "id": "js-so49-devalk",
                  "title": "De Valk: 2006 Sun Odyssey 49, reference 811031",
                  "url": "https://www.devalk.nl/en/yachtbrokerage/811031/JEANNEAU-SUN-ODYSSEY-49.html",
                  "kind": "documented-vessel-example",
                  "locator": "General and Machinery",
                  "evidence": "The broker identifies a 2006 Sun Odyssey 49 with one Yanmar 4JH 3HTE, installed 2006. The advertised 90 hp is retained only as source context, not used to derive the engine identity.",
                  "note": "Only De Valk's 2006 Sun Odyssey 49, reference 811031, engine installed 2006. Source prints 4JH 3HTE; only the internal space is normalized. Its 90 hp claim is not used as a reliable rated value. Not the 49i or 49 DS. Catalogue build years reviewed: 2006. The broker identifies a 2006 Sun Odyssey 49 with one Yanmar 4JH 3HTE, installed 2006. The advertised 90 hp is retained only as source context, not used to derive the engine identity."
                }
              ],
              "selectionPower": {
                "kw": 71.4,
                "sources": [
                  "https://nhmr.nl/wp-content/uploads/2022/03/YANMAR-USE-AND-MAINTENANCE-4JH3-TE-TCE-HTE-DTE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 71.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 49\" \"2006\" engine Yanmar",
              "\"Sun Odyssey 49\" \"2006\" \"4JH\" broker -site:youboat.com -site:yachtingaddress.com -site:boatshop24.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-55-yanmar-4jh3hte-1"
        },
        {
          "name": "Sun Odyssey 49i",
          "boatType": "sailing-yacht",
          "yachtModelId": 100339,
          "sourceModelIds": [
            100339
          ],
          "sourceModelNames": [
            "Sun Odyssey 49i"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-100339-yanmar-4jh4te-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-TE",
              "engineDisplayName": "Yanmar 4JH4-TE",
              "engineReferenceId": "review_yanmar_4jh4te",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Ciel Rose, built/launched 2008, engine E12045, in Nautilus Yacht Management's original vessel brochure. Catalogue build years reviewed: 2008.",
              "source": {
                "id": "js-so49i-nautilus",
                "title": "Nautilus Yacht Management: 2008 Sun Odyssey 49i Ciel Rose",
                "url": "https://imgs.yachthub.com/3/1/6/9/3/0/Ciel_Rose_Brochure.pdf",
                "kind": "documented-vessel-example",
                "locator": "Pages 1, 3 and 4; Boat Details, Information & Features, Engine / Machinery",
                "evidence": "Nautilus's original broker PDF identifies Ciel Rose as a 2008 Sun Odyssey 49i, with one 2008 Yanmar 4JH4-TE rated 75 hp and engine number E12045.",
                "note": "Only Ciel Rose, built/launched 2008, engine E12045, in Nautilus Yacht Management's original vessel brochure. Catalogue build years reviewed: 2008. Nautilus's original broker PDF identifies Ciel Rose as a 2008 Sun Odyssey 49i, with one 2008 Yanmar 4JH4-TE rated 75 hp and engine number E12045."
              },
              "sources": [
                {
                  "id": "js-so49i-nautilus",
                  "title": "Nautilus Yacht Management: 2008 Sun Odyssey 49i Ciel Rose",
                  "url": "https://imgs.yachthub.com/3/1/6/9/3/0/Ciel_Rose_Brochure.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Pages 1, 3 and 4; Boat Details, Information & Features, Engine / Machinery",
                  "evidence": "Nautilus's original broker PDF identifies Ciel Rose as a 2008 Sun Odyssey 49i, with one 2008 Yanmar 4JH4-TE rated 75 hp and engine number E12045.",
                  "note": "Only Ciel Rose, built/launched 2008, engine E12045, in Nautilus Yacht Management's original vessel brochure. Catalogue build years reviewed: 2008. Nautilus's original broker PDF identifies Ciel Rose as a 2008 Sun Odyssey 49i, with one 2008 Yanmar 4JH4-TE rated 75 hp and engine number E12045."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH4-TE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-100339-yanmar-4jh4hte-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4HTE",
              "engineDisplayName": "Yanmar 4JH4HTE",
              "engineReferenceId": "yanmar_4jh4_hte",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only De Valk reference 800051, a 2008 Sun Odyssey 49i with engine installed 2008. Source prints 4JH4 HTE; only spacing is normalized. Separate observed higher-power configuration, not a claim about all 49i hulls. Catalogue build years reviewed: 2008.",
              "source": {
                "id": "js-so49i-devalk",
                "title": "De Valk: 2008 Sun Odyssey 49i, reference 800051",
                "url": "https://www.devalk.nl/en/brochure_full/800051/JEANNEAU-SUN-ODYSSEY-49I.html",
                "kind": "documented-vessel-example",
                "locator": "Machinery, page 3; search-indexed passage",
                "evidence": "The broker lists one Yanmar 4JH4 HTE rated 110 hp, installed in 2008, for its 2008 Sun Odyssey 49i example.",
                "note": "Only De Valk reference 800051, a 2008 Sun Odyssey 49i with engine installed 2008. Source prints 4JH4 HTE; only spacing is normalized. Separate observed higher-power configuration, not a claim about all 49i hulls. Catalogue build years reviewed: 2008. The broker lists one Yanmar 4JH4 HTE rated 110 hp, installed in 2008, for its 2008 Sun Odyssey 49i example."
              },
              "sources": [
                {
                  "id": "js-so49i-devalk",
                  "title": "De Valk: 2008 Sun Odyssey 49i, reference 800051",
                  "url": "https://www.devalk.nl/en/brochure_full/800051/JEANNEAU-SUN-ODYSSEY-49I.html",
                  "kind": "documented-vessel-example",
                  "locator": "Machinery, page 3; search-indexed passage",
                  "evidence": "The broker lists one Yanmar 4JH4 HTE rated 110 hp, installed in 2008, for its 2008 Sun Odyssey 49i example.",
                  "note": "Only De Valk reference 800051, a 2008 Sun Odyssey 49i with engine installed 2008. Source prints 4JH4 HTE; only spacing is normalized. Separate observed higher-power configuration, not a claim about all 49i hulls. Catalogue build years reviewed: 2008. The broker lists one Yanmar 4JH4 HTE rated 110 hp, installed in 2008, for its 2008 Sun Odyssey 49i example."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 49i\" \"engine\" Yanmar",
              "\"Sun Odyssey 49i\" \"2008\" \"4JH4\"",
              "\"Sun Odyssey 49i\" \"4JH4-TE\" brochure pdf"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100339-yanmar-4jh4te-1"
        },
        {
          "name": "Sun Odyssey 54 DS",
          "boatType": "sailing-yacht",
          "yachtModelId": 947111,
          "sourceModelIds": [
            947111,
            956014
          ],
          "sourceModelNames": [
            "Sun Odyssey 54 DS - 3 + 1 cab.",
            "Sun Odyssey 54 DS - 4 + 1 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-947111-yanmar-4jh4hte-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4HTE",
              "engineDisplayName": "Yanmar 4JH4HTE",
              "engineReferenceId": "yanmar_4jh4_hte",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Storm Yachting's Sun Odyssey 54 DS example with engine date 2008. Does not establish the catalogue's 2006 installation; do not transfer engines from the later Jeanneau 54. Catalogue build years reviewed: 2006, 2008.",
              "source": {
                "id": "js-so54ds-storm",
                "title": "Storm Yachting: Sun Odyssey 54 DS, 2008 engine",
                "url": "https://stormyachting.com/sailing-yachts/jeanneau-sun-odyssey-54-ds/",
                "kind": "documented-vessel-example",
                "locator": "Engine & Machinery; Engine Type, Engine Power, Engine Date",
                "evidence": "The broker identifies a Yanmar 4JH4HTE main diesel with engine date 2008 and power 1 x 110 hp.",
                "note": "Only Storm Yachting's Sun Odyssey 54 DS example with engine date 2008. Does not establish the catalogue's 2006 installation; do not transfer engines from the later Jeanneau 54. Catalogue build years reviewed: 2006, 2008. The broker identifies a Yanmar 4JH4HTE main diesel with engine date 2008 and power 1 x 110 hp."
              },
              "sources": [
                {
                  "id": "js-so54ds-storm",
                  "title": "Storm Yachting: Sun Odyssey 54 DS, 2008 engine",
                  "url": "https://stormyachting.com/sailing-yachts/jeanneau-sun-odyssey-54-ds/",
                  "kind": "documented-vessel-example",
                  "locator": "Engine & Machinery; Engine Type, Engine Power, Engine Date",
                  "evidence": "The broker identifies a Yanmar 4JH4HTE main diesel with engine date 2008 and power 1 x 110 hp.",
                  "note": "Only Storm Yachting's Sun Odyssey 54 DS example with engine date 2008. Does not establish the catalogue's 2006 installation; do not transfer engines from the later Jeanneau 54. Catalogue build years reviewed: 2006, 2008. The broker identifies a Yanmar 4JH4HTE main diesel with engine date 2008 and power 1 x 110 hp."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 80.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 54 DS\" \"engine\" Yanmar"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-947111-yanmar-4jh4hte-1"
        },
        {
          "name": "Sun Odyssey 319",
          "boatType": "sailing-yacht",
          "yachtModelId": 4044853,
          "sourceModelIds": [
            4044853
          ],
          "sourceModelNames": [
            "Sun Odyssey 319 - 2 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-4044853-yanmar-3ym20-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Jeanneau dealer's archived new-model specification for the 319 design. No dated individual 2018 or 2020 catalogue hull is identified. Catalogue build years reviewed: 2018, 2020.",
              "source": {
                "id": "js-so319-ac",
                "title": "A&C Yacht Brokers: Sun Odyssey 319 new-model specification",
                "url": "https://www.bateaux-antilles.fr/bateaux-neufs/jeanneau/sun-odyssey-319.html",
                "kind": "authorized-dealer-specification",
                "locator": "Voiles, motorisation et reservoirs",
                "evidence": "The Jeanneau dealer's archived new-model page explicitly names Yanmar 3YM20 with saildrive for the Sun Odyssey 319.",
                "note": "Jeanneau dealer's archived new-model specification for the 319 design. No dated individual 2018 or 2020 catalogue hull is identified. Catalogue build years reviewed: 2018, 2020. The Jeanneau dealer's archived new-model page explicitly names Yanmar 3YM20 with saildrive for the Sun Odyssey 319."
              },
              "sources": [
                {
                  "id": "js-so319-ac",
                  "title": "A&C Yacht Brokers: Sun Odyssey 319 new-model specification",
                  "url": "https://www.bateaux-antilles.fr/bateaux-neufs/jeanneau/sun-odyssey-319.html",
                  "kind": "authorized-dealer-specification",
                  "locator": "Voiles, motorisation et reservoirs",
                  "evidence": "The Jeanneau dealer's archived new-model page explicitly names Yanmar 3YM20 with saildrive for the Sun Odyssey 319.",
                  "note": "Jeanneau dealer's archived new-model specification for the 319 design. No dated individual 2018 or 2020 catalogue hull is identified. Catalogue build years reviewed: 2018, 2020. The Jeanneau dealer's archived new-model page explicitly names Yanmar 3YM20 with saildrive for the Sun Odyssey 319."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 319\" \"engine\" Yanmar",
              "\"Sun Odyssey 319\" \"3YM20\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4044853-yanmar-3ym20-1"
        },
        {
          "name": "Sun Odyssey 349",
          "boatType": "sailing-yacht",
          "yachtModelId": 570019,
          "sourceModelIds": [
            570019
          ],
          "sourceModelNames": [
            "Sun Odyssey 349 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-570019-yanmar-3ym20-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM20",
              "engineDisplayName": "Yanmar 3YM20",
              "engineReferenceId": "yanmar_3ym20",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only ADS Marine's 2015 Sun Odyssey 349 example. Broader catalogue coverage through 2024 is not evidence that all intervening boats use the same engine. Catalogue build years reviewed: 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024.",
              "source": {
                "id": "js-so349-ads",
                "title": "ADS Marine: 2015 Sun Odyssey 349 vessel specification",
                "url": "https://www.ads-marine.com/en/used-boats/jeanneau-sun-odyssey-349?f=print_page&type=pdf",
                "kind": "documented-vessel-example",
                "locator": "Page 1, General Information and Propulsion",
                "evidence": "The broker identifies model year/build year 2015 and one Yanmar 3YM20 rated 21 hp; the equipment text also gives 15 kW and shaft drive.",
                "note": "Only ADS Marine's 2015 Sun Odyssey 349 example. Broader catalogue coverage through 2024 is not evidence that all intervening boats use the same engine. Catalogue build years reviewed: 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024. The broker identifies model year/build year 2015 and one Yanmar 3YM20 rated 21 hp; the equipment text also gives 15 kW and shaft drive."
              },
              "sources": [
                {
                  "id": "js-so349-ads",
                  "title": "ADS Marine: 2015 Sun Odyssey 349 vessel specification",
                  "url": "https://www.ads-marine.com/en/used-boats/jeanneau-sun-odyssey-349?f=print_page&type=pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Page 1, General Information and Propulsion",
                  "evidence": "The broker identifies model year/build year 2015 and one Yanmar 3YM20 rated 21 hp; the equipment text also gives 15 kW and shaft drive.",
                  "note": "Only ADS Marine's 2015 Sun Odyssey 349 example. Broader catalogue coverage through 2024 is not evidence that all intervening boats use the same engine. Catalogue build years reviewed: 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024. The broker identifies model year/build year 2015 and one Yanmar 3YM20 rated 21 hp; the equipment text also gives 15 kW and shaft drive."
                }
              ],
              "selectionPower": {
                "kw": 15.3,
                "sources": [
                  "https://www.yanmar.com/marine/product/engines/3ym20/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 15.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 349\" \"engine\" Yanmar"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-570019-yanmar-3ym20-1"
        },
        {
          "name": "Sun Odyssey 350",
          "boatType": "sailing-yacht",
          "yachtModelId": 41261560,
          "sourceModelIds": [
            41261560
          ],
          "sourceModelNames": [
            "Sun Odyssey 350 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-41261560-yanmar-3ym30ae-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Standard diesel on page 1 of the December 2023 manufacturer inventory for the 2024-generation 350, corroborated by Locasail's January 2026 offering. Page 3 inconsistently prints 3YM20 at the same 29 CV / 21 kW rating; this is not accepted as a genuine second installation. Preserve AE, not the older 3YM30 curve identity. The optional Torqeedo 6 kW pod lacks an exact model name and is not resolved here. Catalogue build years reviewed: 2024, 2026.",
              "source": {
                "id": "js-so350-inventory",
                "title": "Jeanneau Sun Odyssey 350 original equipment inventory, December 2023",
                "url": "https://www.locasail.com/uploads/files/url-t-site1media-5994.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, I TECHNIQUE, Motorisation; compare page 3, I MOTORISATION",
                "evidence": "The page-1 standard engine is explicitly Yanmar 3YM30AE, 29 CV / 21 kW. Page 3 inconsistently prints 3YM20 with the same rating, so it is not accepted as a second installation. The 6 kW Torqeedo option has no exact model identifier.",
                "note": "Standard diesel on page 1 of the December 2023 manufacturer inventory for the 2024-generation 350, corroborated by Locasail's January 2026 offering. Page 3 inconsistently prints 3YM20 at the same 29 CV / 21 kW rating; this is not accepted as a genuine second installation. Preserve AE, not the older 3YM30 curve identity. The optional Torqeedo 6 kW pod lacks an exact model name and is not resolved here. Catalogue build years reviewed: 2024, 2026. The page-1 standard engine is explicitly Yanmar 3YM30AE, 29 CV / 21 kW. Page 3 inconsistently prints 3YM20 with the same rating, so it is not accepted as a second installation. The 6 kW Torqeedo option has no exact model identifier."
              },
              "sources": [
                {
                  "id": "js-so350-inventory",
                  "title": "Jeanneau Sun Odyssey 350 original equipment inventory, December 2023",
                  "url": "https://www.locasail.com/uploads/files/url-t-site1media-5994.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, I TECHNIQUE, Motorisation; compare page 3, I MOTORISATION",
                  "evidence": "The page-1 standard engine is explicitly Yanmar 3YM30AE, 29 CV / 21 kW. Page 3 inconsistently prints 3YM20 with the same rating, so it is not accepted as a second installation. The 6 kW Torqeedo option has no exact model identifier.",
                  "note": "Standard diesel on page 1 of the December 2023 manufacturer inventory for the 2024-generation 350, corroborated by Locasail's January 2026 offering. Page 3 inconsistently prints 3YM20 at the same 29 CV / 21 kW rating; this is not accepted as a genuine second installation. Preserve AE, not the older 3YM30 curve identity. The optional Torqeedo 6 kW pod lacks an exact model name and is not resolved here. Catalogue build years reviewed: 2024, 2026. The page-1 standard engine is explicitly Yanmar 3YM30AE, 29 CV / 21 kW. Page 3 inconsistently prints 3YM20 with the same rating, so it is not accepted as a second installation. The 6 kW Torqeedo option has no exact model identifier."
                },
                {
                  "id": "js-so350-locasail",
                  "title": "Locasail: Sun Odyssey 350 January 2026 specification",
                  "url": "https://www.locasail.com/bateaux-neufs/jeanneau-voile-yachts/sun-odyssey-350.html",
                  "kind": "authorized-dealer-specification",
                  "locator": "Price/version row immediately above Documentation, Tarif Janv 2026",
                  "evidence": "The Jeanneau dealer explicitly advertises the Sun Odyssey 350 with Yanmar 3YM30AE, 29 CV, shaft drive. The AE suffix is present in the source.",
                  "note": "Standard diesel on page 1 of the December 2023 manufacturer inventory for the 2024-generation 350, corroborated by Locasail's January 2026 offering. Page 3 inconsistently prints 3YM20 at the same 29 CV / 21 kW rating; this is not accepted as a genuine second installation. Preserve AE, not the older 3YM30 curve identity. The optional Torqeedo 6 kW pod lacks an exact model name and is not resolved here. Catalogue build years reviewed: 2024, 2026. The Jeanneau dealer explicitly advertises the Sun Odyssey 350 with Yanmar 3YM30AE, 29 CV, shaft drive. The AE suffix is present in the source."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 350\" \"3YM\" engine",
              "\"Sun Odyssey 350\" Yanmar \"3YM30AE\"",
              "\"Sun Odyssey 350\" \"3YM30AE\" -site:yachtingaddress.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-41261560-yanmar-3ym30ae-1"
        },
        {
          "name": "Sun Odyssey 379",
          "boatType": "sailing-yacht",
          "yachtModelId": 478352,
          "sourceModelIds": [
            478352
          ],
          "sourceModelNames": [
            "Sun Odyssey 379"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-478352-yanmar-3ym30-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the broker's 2015 Sun Odyssey 379 example. The separate catalogue year 2013 is not identified by this source. Catalogue build years reviewed: 2013, 2015.",
              "source": {
                "id": "js-so379-annapolis",
                "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 379",
                "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-379-37-10319475",
                "kind": "documented-vessel-example",
                "locator": "Engine and Manuvering; Engines",
                "evidence": "The broker's 2015 Sun Odyssey 379 listing explicitly names Yanmar 3YM30, 29 hp, with saildrive. Hour counters differ within the page and are not used here.",
                "note": "Only the broker's 2015 Sun Odyssey 379 example. The separate catalogue year 2013 is not identified by this source. Catalogue build years reviewed: 2013, 2015. The broker's 2015 Sun Odyssey 379 listing explicitly names Yanmar 3YM30, 29 hp, with saildrive. Hour counters differ within the page and are not used here."
              },
              "sources": [
                {
                  "id": "js-so379-annapolis",
                  "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 379",
                  "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-379-37-10319475",
                  "kind": "documented-vessel-example",
                  "locator": "Engine and Manuvering; Engines",
                  "evidence": "The broker's 2015 Sun Odyssey 379 listing explicitly names Yanmar 3YM30, 29 hp, with saildrive. Hour counters differ within the page and are not used here.",
                  "note": "Only the broker's 2015 Sun Odyssey 379 example. The separate catalogue year 2013 is not identified by this source. Catalogue build years reviewed: 2013, 2015. The broker's 2015 Sun Odyssey 379 listing explicitly names Yanmar 3YM30, 29 hp, with saildrive. Hour counters differ within the page and are not used here."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 379\" \"engine\" Yanmar",
              "\"Sun Odyssey 379\" \"3YM30\" broker"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-478352-yanmar-3ym30-1"
        },
        {
          "name": "Sun Odyssey 380",
          "boatType": "sailing-yacht",
          "yachtModelId": 21572643,
          "sourceModelIds": [
            21572643
          ],
          "sourceModelNames": [
            "Sun Odyssey 380 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-21572643-yanmar-3jh40-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Manufacturer's March 2025 Just in Time offer configuration for the Sun Odyssey 380. It is not a claim about every 2022-2025 boat or about the different Salona 380. Catalogue build years reviewed: 2022, 2023, 2024, 2025.",
              "source": {
                "id": "js-so380-jeanneau",
                "title": "Jeanneau Sun Odyssey 380 Just in Time offer, March 2025",
                "url": "https://app.jeanneau.com/uploads/media/image/interior/5254206d3ccfa7c9712ff64e27f6899b.pdf",
                "kind": "manufacturer-specification",
                "locator": "Offer equipment/price table, first propulsion row",
                "evidence": "The manufacturer's Sun Odyssey 380 offer names Yanmar 3JH40, 40 hp, shaft drive.",
                "note": "Manufacturer's March 2025 Just in Time offer configuration for the Sun Odyssey 380. It is not a claim about every 2022-2025 boat or about the different Salona 380. Catalogue build years reviewed: 2022, 2023, 2024, 2025. The manufacturer's Sun Odyssey 380 offer names Yanmar 3JH40, 40 hp, shaft drive."
              },
              "sources": [
                {
                  "id": "js-so380-jeanneau",
                  "title": "Jeanneau Sun Odyssey 380 Just in Time offer, March 2025",
                  "url": "https://app.jeanneau.com/uploads/media/image/interior/5254206d3ccfa7c9712ff64e27f6899b.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Offer equipment/price table, first propulsion row",
                  "evidence": "The manufacturer's Sun Odyssey 380 offer names Yanmar 3JH40, 40 hp, shaft drive.",
                  "note": "Manufacturer's March 2025 Just in Time offer configuration for the Sun Odyssey 380. It is not a claim about every 2022-2025 boat or about the different Salona 380. Catalogue build years reviewed: 2022, 2023, 2024, 2025. The manufacturer's Sun Odyssey 380 offer names Yanmar 3JH40, 40 hp, shaft drive."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 380\" \"3JH40\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-21572643-yanmar-3jh40-1"
        },
        {
          "name": "Sun Odyssey 389",
          "boatType": "sailing-yacht",
          "yachtModelId": 1052995,
          "sourceModelIds": [
            1052995
          ],
          "sourceModelNames": [
            "Sun Odyssey 389"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1052995-yanmar-3ym30-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Manufacturer's published Sun Odyssey 389 equipment inventory; no individual 2018 charter boat identified. No inference from the predecessor 379 is used. Catalogue build years reviewed: 2018.",
              "source": {
                "id": "js-so389-jeanneau",
                "title": "Jeanneau Sun Odyssey 389 equipment inventory",
                "url": "https://app.jeanneau.com/inventory/22559",
                "kind": "manufacturer-specification",
                "locator": "I TECHNICAL, Engine; search-indexed passage",
                "evidence": "Jeanneau's inventory explicitly names Yanmar 3YM30, 29 CV / 21 kW, saildrive for the Sun Odyssey 389.",
                "note": "Manufacturer's published Sun Odyssey 389 equipment inventory; no individual 2018 charter boat identified. No inference from the predecessor 379 is used. Catalogue build years reviewed: 2018. Jeanneau's inventory explicitly names Yanmar 3YM30, 29 CV / 21 kW, saildrive for the Sun Odyssey 389."
              },
              "sources": [
                {
                  "id": "js-so389-jeanneau",
                  "title": "Jeanneau Sun Odyssey 389 equipment inventory",
                  "url": "https://app.jeanneau.com/inventory/22559",
                  "kind": "manufacturer-specification",
                  "locator": "I TECHNICAL, Engine; search-indexed passage",
                  "evidence": "Jeanneau's inventory explicitly names Yanmar 3YM30, 29 CV / 21 kW, saildrive for the Sun Odyssey 389.",
                  "note": "Manufacturer's published Sun Odyssey 389 equipment inventory; no individual 2018 charter boat identified. No inference from the predecessor 379 is used. Catalogue build years reviewed: 2018. Jeanneau's inventory explicitly names Yanmar 3YM30, 29 CV / 21 kW, saildrive for the Sun Odyssey 389."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 21.3
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 389\" \"3YM30\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1052995-yanmar-3ym30-1"
        },
        {
          "name": "Sun Odyssey 410",
          "boatType": "sailing-yacht",
          "yachtModelId": 7912959,
          "sourceModelIds": [
            7912959
          ],
          "sourceModelNames": [
            "Sun Odyssey 410 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-7912959-yanmar-3jh40-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH40",
              "engineDisplayName": "Yanmar 3JH40",
              "engineReferenceId": "yanmar_3jh40",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Lower-priced shaft-drive propulsion package in the January 2025 Sun Odyssey 410 price list. Not retroactively guaranteed for all catalogue years 2019-2025. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025.",
              "source": {
                "id": "js-so410-price",
                "title": "Jeanneau Sun Odyssey 410 manufacturer price list, B2025 January 2025",
                "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey410_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION, codes A *1 1ZJ0 and A *1 1XD0",
                "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410.",
                "note": "Lower-priced shaft-drive propulsion package in the January 2025 Sun Odyssey 410 price list. Not retroactively guaranteed for all catalogue years 2019-2025. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410."
              },
              "sources": [
                {
                  "id": "js-so410-price",
                  "title": "Jeanneau Sun Odyssey 410 manufacturer price list, B2025 January 2025",
                  "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey410_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION, codes A *1 1ZJ0 and A *1 1XD0",
                  "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410.",
                  "note": "Lower-priced shaft-drive propulsion package in the January 2025 Sun Odyssey 410 price list. Not retroactively guaranteed for all catalogue years 2019-2025. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410."
                }
              ],
              "selectionPower": {
                "kw": 29.4,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 29.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-7912959-yanmar-4jh45cr-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45CR",
              "engineDisplayName": "Yanmar 4JH45CR",
              "engineReferenceId": "review_yanmar_4jh45cr",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separately priced 45 hp shaft-drive version in the January 2025 Sun Odyssey 410 price list; only a published offering, not identification of a selected boat. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025.",
              "source": {
                "id": "js-so410-price",
                "title": "Jeanneau Sun Odyssey 410 manufacturer price list, B2025 January 2025",
                "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey410_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION, codes A *1 1ZJ0 and A *1 1XD0",
                "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410.",
                "note": "Separately priced 45 hp shaft-drive version in the January 2025 Sun Odyssey 410 price list; only a published offering, not identification of a selected boat. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410."
              },
              "sources": [
                {
                  "id": "js-so410-price",
                  "title": "Jeanneau Sun Odyssey 410 manufacturer price list, B2025 January 2025",
                  "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey410_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION, codes A *1 1ZJ0 and A *1 1XD0",
                  "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410.",
                  "note": "Separately priced 45 hp shaft-drive version in the January 2025 Sun Odyssey 410 price list; only a published offering, not identification of a selected boat. Catalogue build years reviewed: 2019, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 3JH40 40 hp and Yanmar 4JH45CR 45 hp, both shaft drive, for the Sun Odyssey 410."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH45.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/04/2022_0314_Vetus-Selectietabellen-Yanmar-ENG-2022.pdf",
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 410\" \"engine\" Yanmar",
              "site:app.jeanneau.com \"Sun Odyssey 410\" \"3JH\"",
              "\"Sun Odyssey 410\" \"3JH40\" price"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7912959-yanmar-3jh40-1"
        },
        {
          "name": "Sun Odyssey 415",
          "boatType": "sailing-yacht",
          "yachtModelId": 70152016,
          "sourceModelIds": [
            70152016
          ],
          "sourceModelNames": [
            "Sun Odyssey 415"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-70152016-yanmar-4jh45-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicit standard common-rail shaft-drive engine in the May/June 2025 Sun Odyssey 415 inventory, applicable to the new 2026-era design. Do not substitute a 410 engine based on shared hull dimensions. Catalogue build years reviewed: 2026.",
              "source": {
                "id": "js-so415-inventory",
                "title": "Jeanneau Sun Odyssey 415 original equipment inventory, May/June 2025",
                "url": "https://www.sea-ventures.co.uk/wp-content/uploads/2025/06/415-specification.pdf",
                "kind": "manufacturer-specification",
                "locator": "Engine section, Standard; document updated May 2025",
                "evidence": "The manufacturer's inventory, hosted by Jeanneau dealer Sea Ventures, explicitly names standard Yanmar 4JH45 Common Rail shaft drive, 45 hp / 33 kW.",
                "note": "Explicit standard common-rail shaft-drive engine in the May/June 2025 Sun Odyssey 415 inventory, applicable to the new 2026-era design. Do not substitute a 410 engine based on shared hull dimensions. Catalogue build years reviewed: 2026. The manufacturer's inventory, hosted by Jeanneau dealer Sea Ventures, explicitly names standard Yanmar 4JH45 Common Rail shaft drive, 45 hp / 33 kW."
              },
              "sources": [
                {
                  "id": "js-so415-inventory",
                  "title": "Jeanneau Sun Odyssey 415 original equipment inventory, May/June 2025",
                  "url": "https://www.sea-ventures.co.uk/wp-content/uploads/2025/06/415-specification.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Engine section, Standard; document updated May 2025",
                  "evidence": "The manufacturer's inventory, hosted by Jeanneau dealer Sea Ventures, explicitly names standard Yanmar 4JH45 Common Rail shaft drive, 45 hp / 33 kW.",
                  "note": "Explicit standard common-rail shaft-drive engine in the May/June 2025 Sun Odyssey 415 inventory, applicable to the new 2026-era design. Do not substitute a 410 engine based on shared hull dimensions. Catalogue build years reviewed: 2026. The manufacturer's inventory, hosted by Jeanneau dealer Sea Ventures, explicitly names standard Yanmar 4JH45 Common Rail shaft drive, 45 hp / 33 kW."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 415\" \"engine\" Yanmar"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-70152016-yanmar-4jh45-1"
        },
        {
          "name": "Sun Odyssey 419",
          "boatType": "sailing-yacht",
          "yachtModelId": 1067079,
          "sourceModelIds": [
            1067079
          ],
          "sourceModelNames": [
            "Sun Odyssey 419 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1067079-yanmar-4jh45-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Williams & Smithells' 2018 Sun Odyssey 419, a former Sunsail sail-training yacht. Not evidence for every 2018/2019 catalogue boat. Catalogue build years reviewed: 2018, 2019.",
              "source": {
                "id": "js-so419-williams",
                "title": "Williams & Smithells: 2018 Sun Odyssey 419",
                "url": "https://www.williamsandsmithells.com/boats/jeanneau-sun-odyssey-419/",
                "kind": "documented-vessel-example",
                "locator": "Key Information, Construction and Machinery",
                "evidence": "The original broker listing identifies a 2018 Sun Odyssey 419 with a Yanmar 4JH45 rated 45 hp and saildrive.",
                "note": "Only Williams & Smithells' 2018 Sun Odyssey 419, a former Sunsail sail-training yacht. Not evidence for every 2018/2019 catalogue boat. Catalogue build years reviewed: 2018, 2019. The original broker listing identifies a 2018 Sun Odyssey 419 with a Yanmar 4JH45 rated 45 hp and saildrive."
              },
              "sources": [
                {
                  "id": "js-so419-williams",
                  "title": "Williams & Smithells: 2018 Sun Odyssey 419",
                  "url": "https://www.williamsandsmithells.com/boats/jeanneau-sun-odyssey-419/",
                  "kind": "documented-vessel-example",
                  "locator": "Key Information, Construction and Machinery",
                  "evidence": "The original broker listing identifies a 2018 Sun Odyssey 419 with a Yanmar 4JH45 rated 45 hp and saildrive.",
                  "note": "Only Williams & Smithells' 2018 Sun Odyssey 419, a former Sunsail sail-training yacht. Not evidence for every 2018/2019 catalogue boat. Catalogue build years reviewed: 2018, 2019. The original broker listing identifies a 2018 Sun Odyssey 419 with a Yanmar 4JH45 rated 45 hp and saildrive."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 419\" \"engine\" Yanmar",
              "site:app.jeanneau.com \"Sun Odyssey 419\" \"4JH\"",
              "\"Sun Odyssey 419\" \"4JH45\" specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1067079-yanmar-4jh45-1"
        },
        {
          "name": "Sun Odyssey 439",
          "boatType": "sailing-yacht",
          "yachtModelId": 119451,
          "sourceModelIds": [
            119451
          ],
          "sourceModelNames": [
            "Sun Odyssey 439"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-119451-yanmar-4jh5ce-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH5-CE",
              "engineDisplayName": "Yanmar 4JH5-CE",
              "engineReferenceId": "review_yanmar_4jh5ce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the 2013 Performance example Tallulah Ruby in Network Yacht Brokers Lefkas' seller specification; no inference from 449 or 44 DS. Catalogue build years reviewed: 2013, 2014.",
              "source": {
                "id": "js-so439-nyb",
                "title": "Network Yacht Brokers Lefkas: 2013 Sun Odyssey 439 Tallulah Ruby",
                "url": "https://www.yachtworld.com/yacht/2013-jeanneau-sun-odyssey-439-10256294/",
                "kind": "documented-vessel-example",
                "locator": "Full Specification, CONSTRUCTION and MECHANICAL; original selling-broker listing hosted on YachtWorld",
                "evidence": "The broker identifies the 2013 Sun Odyssey 439 Performance Tallulah Ruby and explicitly lists Yanmar 4JH5-CE, 54 hp, with saildrive in its mechanical specification.",
                "note": "Only the 2013 Performance example Tallulah Ruby in Network Yacht Brokers Lefkas' seller specification; no inference from 449 or 44 DS. Catalogue build years reviewed: 2013, 2014. The broker identifies the 2013 Sun Odyssey 439 Performance Tallulah Ruby and explicitly lists Yanmar 4JH5-CE, 54 hp, with saildrive in its mechanical specification."
              },
              "sources": [
                {
                  "id": "js-so439-nyb",
                  "title": "Network Yacht Brokers Lefkas: 2013 Sun Odyssey 439 Tallulah Ruby",
                  "url": "https://www.yachtworld.com/yacht/2013-jeanneau-sun-odyssey-439-10256294/",
                  "kind": "documented-vessel-example",
                  "locator": "Full Specification, CONSTRUCTION and MECHANICAL; original selling-broker listing hosted on YachtWorld",
                  "evidence": "The broker identifies the 2013 Sun Odyssey 439 Performance Tallulah Ruby and explicitly lists Yanmar 4JH5-CE, 54 hp, with saildrive in its mechanical specification.",
                  "note": "Only the 2013 Performance example Tallulah Ruby in Network Yacht Brokers Lefkas' seller specification; no inference from 449 or 44 DS. Catalogue build years reviewed: 2013, 2014. The broker identifies the 2013 Sun Odyssey 439 Performance Tallulah Ruby and explicitly lists Yanmar 4JH5-CE, 54 hp, with saildrive in its mechanical specification."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-119451-yanmar-4jh5e-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH5E",
              "engineDisplayName": "Yanmar 4JH5E",
              "engineReferenceId": "review_yanmar_4jh5e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Reported exact designation on the broker's separate 2015 example, outside the catalogue's 2013/2014 coverage. Preserve the published designation without inventing a CE suffix; SD-60 is the separate drive, not an engine. Catalogue build years reviewed: 2013, 2014.",
              "source": {
                "id": "js-so439-annapolis",
                "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 439",
                "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-439-43-10249316",
                "kind": "documented-vessel-example",
                "locator": "Engine and Saildrive",
                "evidence": "The broker's 2015 Sun Odyssey 439 example explicitly lists Yanmar 4JH5E, 54 hp, mechanical fuel injection, separately from the Yanmar SD-60 saildrive.",
                "note": "Reported exact designation on the broker's separate 2015 example, outside the catalogue's 2013/2014 coverage. Preserve the published designation without inventing a CE suffix; SD-60 is the separate drive, not an engine. Catalogue build years reviewed: 2013, 2014. The broker's 2015 Sun Odyssey 439 example explicitly lists Yanmar 4JH5E, 54 hp, mechanical fuel injection, separately from the Yanmar SD-60 saildrive."
              },
              "sources": [
                {
                  "id": "js-so439-annapolis",
                  "title": "Annapolis Yacht Broker Services: 2015 Sun Odyssey 439",
                  "url": "https://www.annapolisyachtbroker.com/listings/2015-jeanneau-sun-odyssey-439-43-10249316",
                  "kind": "documented-vessel-example",
                  "locator": "Engine and Saildrive",
                  "evidence": "The broker's 2015 Sun Odyssey 439 example explicitly lists Yanmar 4JH5E, 54 hp, mechanical fuel injection, separately from the Yanmar SD-60 saildrive.",
                  "note": "Reported exact designation on the broker's separate 2015 example, outside the catalogue's 2013/2014 coverage. Preserve the published designation without inventing a CE suffix; SD-60 is the separate drive, not an engine. Catalogue build years reviewed: 2013, 2014. The broker's 2015 Sun Odyssey 439 example explicitly lists Yanmar 4JH5E, 54 hp, mechanical fuel injection, separately from the Yanmar SD-60 saildrive."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH5E.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 439\" \"engine\" Yanmar",
              "\"Sun Odyssey 439\" \"4JH5-CE\" \"inventaire\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-119451-yanmar-4jh5ce-1"
        },
        {
          "name": "Sun Odyssey 440",
          "boatType": "sailing-yacht",
          "yachtModelId": 4033329,
          "sourceModelIds": [
            4033329,
            4782583
          ],
          "sourceModelNames": [
            "Sun Odyssey 440 - 3 cab.",
            "Sun Odyssey 440 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-4033329-yanmar-4jh45-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "45 hp shaft-drive version in the January 2025 Sun Odyssey 440 price list. Earlier catalogue years 2018-2024 need hull-specific confirmation. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025.",
              "source": {
                "id": "js-so440-price",
                "title": "Jeanneau Sun Odyssey 440 manufacturer price list, B2025 January 2025",
                "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey440_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION, codes A *1 1XD0 and A *1 1XA0",
                "evidence": "The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440.",
                "note": "45 hp shaft-drive version in the January 2025 Sun Odyssey 440 price list. Earlier catalogue years 2018-2024 need hull-specific confirmation. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440."
              },
              "sources": [
                {
                  "id": "js-so440-price",
                  "title": "Jeanneau Sun Odyssey 440 manufacturer price list, B2025 January 2025",
                  "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey440_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION, codes A *1 1XD0 and A *1 1XA0",
                  "evidence": "The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440.",
                  "note": "45 hp shaft-drive version in the January 2025 Sun Odyssey 440 price list. Earlier catalogue years 2018-2024 need hull-specific confirmation. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 33.1
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-4033329-yanmar-4jh57cr-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57CR",
              "engineDisplayName": "Yanmar 4JH57CR",
              "engineReferenceId": "review_yanmar_4jh57cr",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separately priced 57 hp shaft-drive version in the same January 2025 Sun Odyssey 440 sheet; no assumption that all four-cabin or three-cabin boats have it. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025.",
              "source": {
                "id": "js-so440-price",
                "title": "Jeanneau Sun Odyssey 440 manufacturer price list, B2025 January 2025",
                "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey440_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION, codes A *1 1XD0 and A *1 1XA0",
                "evidence": "The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440.",
                "note": "Separately priced 57 hp shaft-drive version in the same January 2025 Sun Odyssey 440 sheet; no assumption that all four-cabin or three-cabin boats have it. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440."
              },
              "sources": [
                {
                  "id": "js-so440-price",
                  "title": "Jeanneau Sun Odyssey 440 manufacturer price list, B2025 January 2025",
                  "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey440_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION, codes A *1 1XD0 and A *1 1XA0",
                  "evidence": "The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440.",
                  "note": "Separately priced 57 hp shaft-drive version in the same January 2025 Sun Odyssey 440 sheet; no assumption that all four-cabin or three-cabin boats have it. Catalogue build years reviewed: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025. The Jeanneau-issued price sheet lists Yanmar 4JH45 45 hp and Yanmar 4JH57CR 57 hp shaft-drive versions of the Sun Odyssey 440."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-Datasheet_4JH57.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/04/2022_0314_Vetus-Selectietabellen-Yanmar-ENG-2022.pdf",
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 440\" Yanmar \"engine\"",
              "site:app.jeanneau.com \"Sun Odyssey 440\" \"4JH\"",
              "\"Sun Odyssey 440\" \"4JH45\" price"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4033329-yanmar-4jh45-1"
        },
        {
          "name": "Sun Odyssey 449",
          "boatType": "sailing-yacht",
          "yachtModelId": 1052996,
          "sourceModelIds": [
            1052996,
            1299617
          ],
          "sourceModelNames": [
            "Sun Odyssey 449",
            "Sun Odyssey 449 - 3 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1052996-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Zosca, the operator's 2017 Sun Odyssey 449. No manufacturer-standard claim and no assumption about the catalogue's 2016, 2018 or 2019 boats. Catalogue build years reviewed: 2016, 2017, 2018, 2019.",
              "source": {
                "id": "js-so449-zosca",
                "title": "Zosca Sailing: 2017 Sun Odyssey 449 Zosca",
                "url": "https://www.zoscasailing.com/details/",
                "kind": "documented-vessel-example",
                "locator": "Zosca Layout, Specifications, and Equipments; Layout and Specs, Engine",
                "evidence": "The sailing operator identifies Zosca as a 2017 Sun Odyssey 449 and explicitly names Yanmar 4JH57.",
                "note": "Only Zosca, the operator's 2017 Sun Odyssey 449. No manufacturer-standard claim and no assumption about the catalogue's 2016, 2018 or 2019 boats. Catalogue build years reviewed: 2016, 2017, 2018, 2019. The sailing operator identifies Zosca as a 2017 Sun Odyssey 449 and explicitly names Yanmar 4JH57."
              },
              "sources": [
                {
                  "id": "js-so449-zosca",
                  "title": "Zosca Sailing: 2017 Sun Odyssey 449 Zosca",
                  "url": "https://www.zoscasailing.com/details/",
                  "kind": "documented-vessel-example",
                  "locator": "Zosca Layout, Specifications, and Equipments; Layout and Specs, Engine",
                  "evidence": "The sailing operator identifies Zosca as a 2017 Sun Odyssey 449 and explicitly names Yanmar 4JH57.",
                  "note": "Only Zosca, the operator's 2017 Sun Odyssey 449. No manufacturer-standard claim and no assumption about the catalogue's 2016, 2018 or 2019 boats. Catalogue build years reviewed: 2016, 2017, 2018, 2019. The sailing operator identifies Zosca as a 2017 Sun Odyssey 449 and explicitly names Yanmar 4JH57."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 9
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 449\" Yanmar \"engine\"",
              "site:app.jeanneau.com \"Sun Odyssey 449\" \"4JH\"",
              "\"Sun Odyssey 449\" \"4JH57\" specification"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1052996-yanmar-4jh57-1"
        },
        {
          "name": "Sun Odyssey 455",
          "boatType": "sailing-yacht",
          "yachtModelId": 72664883,
          "sourceModelIds": [
            72664883
          ],
          "sourceModelNames": [
            "Sun Odyssey 455"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-72664883-yanmar-4jh57cr-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57CR",
              "engineDisplayName": "Yanmar 4JH57CR",
              "engineReferenceId": "review_yanmar_4jh57cr",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Standard engine in the December 2025 manufacturer inventory for the new Sun Odyssey 455, consistent with the dealer's exact specification. Intended for the 2026-era model, not the older 440 or 449. Catalogue build years reviewed: 2026.",
              "source": {
                "id": "js-so455-inventory",
                "title": "Jeanneau Sun Odyssey 455 original equipment inventory, December 2025",
                "url": "https://www.bateaux-antilles.fr/sites/www.bateaux-antilles.fr/files/documentation/other/21348/2025-0067-prprintinvvoileso455fr12-25.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 3, I MOTORISATION, Standard and Options",
                "evidence": "Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW.",
                "note": "Standard engine in the December 2025 manufacturer inventory for the new Sun Odyssey 455, consistent with the dealer's exact specification. Intended for the 2026-era model, not the older 440 or 449. Catalogue build years reviewed: 2026. Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW."
              },
              "sources": [
                {
                  "id": "js-so455-inventory",
                  "title": "Jeanneau Sun Odyssey 455 original equipment inventory, December 2025",
                  "url": "https://www.bateaux-antilles.fr/sites/www.bateaux-antilles.fr/files/documentation/other/21348/2025-0067-prprintinvvoileso455fr12-25.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 3, I MOTORISATION, Standard and Options",
                  "evidence": "Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW.",
                  "note": "Standard engine in the December 2025 manufacturer inventory for the new Sun Odyssey 455, consistent with the dealer's exact specification. Intended for the 2026-era model, not the older 440 or 449. Catalogue build years reviewed: 2026. Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW."
                },
                {
                  "id": "js-so455-ac",
                  "title": "A&C Yacht Brokers: new-generation Sun Odyssey 455",
                  "url": "https://www.bateaux-antilles.fr/bateaux-neufs/jeanneau/sun-odyssey-455.html",
                  "kind": "authorized-dealer-specification",
                  "locator": "Voiles, motorisation et reservoirs",
                  "evidence": "The Jeanneau dealer explicitly lists Yanmar 4JH57CR, 57 CV, saildrive for the new Sun Odyssey 455.",
                  "note": "Standard engine in the December 2025 manufacturer inventory for the new Sun Odyssey 455, consistent with the dealer's exact specification. Intended for the 2026-era model, not the older 440 or 449. Catalogue build years reviewed: 2026. The Jeanneau dealer explicitly lists Yanmar 4JH57CR, 57 CV, saildrive for the new Sun Odyssey 455."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-Datasheet_4JH57.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/04/2022_0314_Vetus-Selectietabellen-Yanmar-ENG-2022.pdf",
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-72664883-yanmar-4jh80cr-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80CR",
              "engineDisplayName": "Yanmar 4JH80CR",
              "engineReferenceId": "review_yanmar_4jh80cr",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicit manufacturer engine option in the December 2025 Sun Odyssey 455 inventory; saildrive and electronic throttle. Not a standard-fit assertion. Catalogue build years reviewed: 2026.",
              "source": {
                "id": "js-so455-inventory",
                "title": "Jeanneau Sun Odyssey 455 original equipment inventory, December 2025",
                "url": "https://www.bateaux-antilles.fr/sites/www.bateaux-antilles.fr/files/documentation/other/21348/2025-0067-prprintinvvoileso455fr12-25.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 3, I MOTORISATION, Standard and Options",
                "evidence": "Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW.",
                "note": "Explicit manufacturer engine option in the December 2025 Sun Odyssey 455 inventory; saildrive and electronic throttle. Not a standard-fit assertion. Catalogue build years reviewed: 2026. Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW."
              },
              "sources": [
                {
                  "id": "js-so455-inventory",
                  "title": "Jeanneau Sun Odyssey 455 original equipment inventory, December 2025",
                  "url": "https://www.bateaux-antilles.fr/sites/www.bateaux-antilles.fr/files/documentation/other/21348/2025-0067-prprintinvvoileso455fr12-25.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 3, I MOTORISATION, Standard and Options",
                  "evidence": "Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW.",
                  "note": "Explicit manufacturer engine option in the December 2025 Sun Odyssey 455 inventory; saildrive and electronic throttle. Not a standard-fit assertion. Catalogue build years reviewed: 2026. Jeanneau's original inventory explicitly names standard Yanmar 4JH57CR Sail Drive, 57 CV / 42 kW, and optional Yanmar 4JH80CR Sail Drive, 80 CV / 59 kW."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/04/2022_0314_Vetus-Selectietabellen-Yanmar-ENG-2022.pdf",
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 455\" Yanmar \"engine\"",
              "\"Sun Odyssey 455\" \"4JH\" price pdf",
              "\"Sun Odyssey 455\" \"4JH57CR\" -site:yachtworld.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-72664883-yanmar-4jh57cr-1"
        },
        {
          "name": "Sun Odyssey 469",
          "boatType": "sailing-yacht",
          "yachtModelId": 478311,
          "sourceModelIds": [
            478311
          ],
          "sourceModelNames": [
            "Sun Odyssey 469"
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-478311-yanmar-4jh5ce-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH5-CE",
              "engineDisplayName": "Yanmar 4JH5-CE",
              "engineReferenceId": "review_yanmar_4jh5ce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Clarke & Carter's boat built November 2013 and first commissioned 2014. The distinction between build and commissioning years is explicit; do not treat all 2014 boats as identified. Catalogue build years reviewed: 2014.",
              "source": {
                "id": "js-so469-clarke",
                "title": "Clarke & Carter: 2013-built Sun Odyssey 469, commissioned 2014",
                "url": "https://www.clarkeandcarter.co.uk/2013-jeanneau-sun-odyssey-469/",
                "kind": "documented-vessel-example",
                "locator": "Basic Boat Information; Mechanical Systems; Construction",
                "evidence": "The broker specifies Yanmar 4JH5-CE 54 hp with saildrive and explains that this boat was built in November 2013 and first commissioned in 2014.",
                "note": "Only Clarke & Carter's boat built November 2013 and first commissioned 2014. The distinction between build and commissioning years is explicit; do not treat all 2014 boats as identified. Catalogue build years reviewed: 2014. The broker specifies Yanmar 4JH5-CE 54 hp with saildrive and explains that this boat was built in November 2013 and first commissioned in 2014."
              },
              "sources": [
                {
                  "id": "js-so469-clarke",
                  "title": "Clarke & Carter: 2013-built Sun Odyssey 469, commissioned 2014",
                  "url": "https://www.clarkeandcarter.co.uk/2013-jeanneau-sun-odyssey-469/",
                  "kind": "documented-vessel-example",
                  "locator": "Basic Boat Information; Mechanical Systems; Construction",
                  "evidence": "The broker specifies Yanmar 4JH5-CE 54 hp with saildrive and explains that this boat was built in November 2013 and first commissioned in 2014.",
                  "note": "Only Clarke & Carter's boat built November 2013 and first commissioned 2014. The distinction between build and commissioning years is explicit; do not treat all 2014 boats as identified. Catalogue build years reviewed: 2014. The broker specifies Yanmar 4JH5-CE 54 hp with saildrive and explains that this boat was built in November 2013 and first commissioned in 2014."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 469\" Yanmar \"engine\"",
              "\"Sun Odyssey 469\" \"2014\" \"4JH5\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-478311-yanmar-4jh5ce-1"
        },
        {
          "name": "Sun Odyssey 479",
          "boatType": "sailing-yacht",
          "yachtModelId": 1060778,
          "sourceModelIds": [
            1060778
          ],
          "sourceModelNames": [
            "Sun Odyssey 479 - 4 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1060778-yanmar-4jh5ce-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH5-CE",
              "engineDisplayName": "Yanmar 4JH5-CE",
              "engineReferenceId": "review_yanmar_4jh5ce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the operator/broker's 2016 Sun Odyssey 479 sales-inventory example, outside the catalogue's 2017-2019 coverage. Keep separate from the 2018 4JH57 example. Catalogue build years reviewed: 2017, 2018, 2019.",
              "source": {
                "id": "js-so479-vacanze",
                "title": "Vacanzeavela: Sun Odyssey 479, 2016 sales inventory",
                "url": "https://www.vacanzeavela.it/pages/occasioni2.asp?Id=1",
                "kind": "documented-vessel-example",
                "locator": "Occasioni table, SUN ODYSSEY 479 row",
                "evidence": "The charter operator/broker's own inventory explicitly lists a 2016 Sun Odyssey 479 with Yanmar 4JH5-CE, 54 CV. This is not evidence that the 2018 4JH57 example is wrong.",
                "note": "Only the operator/broker's 2016 Sun Odyssey 479 sales-inventory example, outside the catalogue's 2017-2019 coverage. Keep separate from the 2018 4JH57 example. Catalogue build years reviewed: 2017, 2018, 2019. The charter operator/broker's own inventory explicitly lists a 2016 Sun Odyssey 479 with Yanmar 4JH5-CE, 54 CV. This is not evidence that the 2018 4JH57 example is wrong."
              },
              "sources": [
                {
                  "id": "js-so479-vacanze",
                  "title": "Vacanzeavela: Sun Odyssey 479, 2016 sales inventory",
                  "url": "https://www.vacanzeavela.it/pages/occasioni2.asp?Id=1",
                  "kind": "documented-vessel-example",
                  "locator": "Occasioni table, SUN ODYSSEY 479 row",
                  "evidence": "The charter operator/broker's own inventory explicitly lists a 2016 Sun Odyssey 479 with Yanmar 4JH5-CE, 54 CV. This is not evidence that the 2018 4JH57 example is wrong.",
                  "note": "Only the operator/broker's 2016 Sun Odyssey 479 sales-inventory example, outside the catalogue's 2017-2019 coverage. Keep separate from the 2018 4JH57 example. Catalogue build years reviewed: 2017, 2018, 2019. The charter operator/broker's own inventory explicitly lists a 2016 Sun Odyssey 479 with Yanmar 4JH5-CE, 54 CV. This is not evidence that the 2018 4JH57 example is wrong."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 39.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1060778-yanmar-4jh57-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only Victory, the 2018 Horizon Edition Sun Odyssey 479 in Denison's original listing. Not a standard or guaranteed 2017/2019 fit. Catalogue build years reviewed: 2017, 2018, 2019.",
              "source": {
                "id": "js-so479-denison",
                "title": "Denison Yachting: 2018 Sun Odyssey 479 Victory",
                "url": "https://www.yachtworld.com/yacht/2018-jeanneau-sun-odyssey-479-10127959/",
                "kind": "documented-vessel-example",
                "locator": "Seller description and Propulsion; original selling-broker listing hosted on YachtWorld",
                "evidence": "Denison's listing identifies the 2018 Horizon Edition Sun Odyssey 479 Victory and a Yanmar 4JH57 rated 57 hp.",
                "note": "Only Victory, the 2018 Horizon Edition Sun Odyssey 479 in Denison's original listing. Not a standard or guaranteed 2017/2019 fit. Catalogue build years reviewed: 2017, 2018, 2019. Denison's listing identifies the 2018 Horizon Edition Sun Odyssey 479 Victory and a Yanmar 4JH57 rated 57 hp."
              },
              "sources": [
                {
                  "id": "js-so479-denison",
                  "title": "Denison Yachting: 2018 Sun Odyssey 479 Victory",
                  "url": "https://www.yachtworld.com/yacht/2018-jeanneau-sun-odyssey-479-10127959/",
                  "kind": "documented-vessel-example",
                  "locator": "Seller description and Propulsion; original selling-broker listing hosted on YachtWorld",
                  "evidence": "Denison's listing identifies the 2018 Horizon Edition Sun Odyssey 479 Victory and a Yanmar 4JH57 rated 57 hp.",
                  "note": "Only Victory, the 2018 Horizon Edition Sun Odyssey 479 in Denison's original listing. Not a standard or guaranteed 2017/2019 fit. Catalogue build years reviewed: 2017, 2018, 2019. Denison's listing identifies the 2018 Horizon Edition Sun Odyssey 479 Victory and a Yanmar 4JH57 rated 57 hp."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 479\" \"engine\" Yanmar",
              "\"Sun Odyssey 479\" \"2018\" \"4JH57\" -site:boattomorrow.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1060778-yanmar-4jh5ce-1"
        },
        {
          "name": "Sun Odyssey 490",
          "boatType": "sailing-yacht",
          "yachtModelId": 4556104,
          "sourceModelIds": [
            4556104,
            7530821,
            7819782,
            10140223
          ],
          "sourceModelNames": [
            "Sun Odyssey 490 - 3 cab.",
            "Sun Odyssey 490 - 4 + 1 cab.",
            "Sun Odyssey 490 - 5 + 1 cab.",
            "Sun Odyssey 490 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-4556104-yanmar-4jh57cr-1",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57CR",
              "engineDisplayName": "Yanmar 4JH57CR",
              "engineReferenceId": "review_yanmar_4jh57cr",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "57 hp saildrive propulsion package in the January 2025 Sun Odyssey 490 manufacturer sheet. Does not establish individual 2019/2020/2023/2024 catalogue installations. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025.",
              "source": {
                "id": "js-so490-price",
                "title": "Jeanneau Sun Odyssey 490 manufacturer price list, B2025 January 2025",
                "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey490_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION, codes A *1 1XA1 and A *1 1XB1",
                "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages.",
                "note": "57 hp saildrive propulsion package in the January 2025 Sun Odyssey 490 manufacturer sheet. Does not establish individual 2019/2020/2023/2024 catalogue installations. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages."
              },
              "sources": [
                {
                  "id": "js-so490-price",
                  "title": "Jeanneau Sun Odyssey 490 manufacturer price list, B2025 January 2025",
                  "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey490_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION, codes A *1 1XA1 and A *1 1XB1",
                  "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages.",
                  "note": "57 hp saildrive propulsion package in the January 2025 Sun Odyssey 490 manufacturer sheet. Does not establish individual 2019/2020/2023/2024 catalogue installations. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/Yanmar-Datasheet_4JH57.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/04/2022_0314_Vetus-Selectietabellen-Yanmar-ENG-2022.pdf",
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.9
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-4556104-yanmar-4jh80cr-1",
              "label": "Published engine option",
              "configuration": "factory-option",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80CR",
              "engineDisplayName": "Yanmar 4JH80CR",
              "engineReferenceId": "review_yanmar_4jh80cr",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Separately priced 80 hp saildrive version in the same January 2025 Sun Odyssey 490 sheet. Neither saildrive name nor cabin count is used to infer the engine. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025.",
              "source": {
                "id": "js-so490-price",
                "title": "Jeanneau Sun Odyssey 490 manufacturer price list, B2025 January 2025",
                "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey490_price.pdf",
                "kind": "manufacturer-specification",
                "locator": "Page 1, PROPULSION, codes A *1 1XA1 and A *1 1XB1",
                "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages.",
                "note": "Separately priced 80 hp saildrive version in the same January 2025 Sun Odyssey 490 sheet. Neither saildrive name nor cabin count is used to infer the engine. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages."
              },
              "sources": [
                {
                  "id": "js-so490-price",
                  "title": "Jeanneau Sun Odyssey 490 manufacturer price list, B2025 January 2025",
                  "url": "https://www.kiriacoulis.com/sales/JeanneauSunOdyssey490_price.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "Page 1, PROPULSION, codes A *1 1XA1 and A *1 1XB1",
                  "evidence": "The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages.",
                  "note": "Separately priced 80 hp saildrive version in the same January 2025 Sun Odyssey 490 sheet. Neither saildrive name nor cabin count is used to infer the engine. Catalogue build years reviewed: 2019, 2020, 2023, 2024, 2025. The Jeanneau-issued price sheet separately offers Yanmar 4JH57CR 57 hp and Yanmar 4JH80CR 80 hp saildrive packages."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH80-110_A4_052022_HR.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/04/2022_0314_Vetus-Selectietabellen-Yanmar-ENG-2022.pdf",
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 490\" \"engine\" Yanmar",
              "\"Sun Odyssey 490\" \"4JH57\" price pdf",
              "\"Sun Odyssey 490\" \"4JH57CR\" \"4JH80CR\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4556104-yanmar-4jh57cr-1"
        },
        {
          "name": "Sun Odyssey 509",
          "boatType": "sailing-yacht",
          "yachtModelId": 125533,
          "sourceModelIds": [
            125533,
            921624
          ],
          "sourceModelNames": [
            "Sun Odyssey 509 - 5 + 1 cab.",
            "Sun Odyssey 509 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-125533-yanmar-4jh4tce-1",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-TCE",
              "engineDisplayName": "Yanmar 4JH4-TCE",
              "engineReferenceId": "review_yanmar_4jh4tce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Explicit standard engine in the July 2011 preliminary manufacturer inventory for the Sun Odyssey 509 design. The catalogue's 2014 hulls are not individually verified; this is not a specification for the later 519. Catalogue build years reviewed: 2014.",
              "source": {
                "id": "js-so509-inventory",
                "title": "Jeanneau Sun Odyssey 509 preliminary standard inventory, July 2011",
                "url": "https://www.mottemarine.fr/images/pic_bateaux/2011/d754_inventaire_sunodyssey509.pdf",
                "kind": "manufacturer-specification",
                "locator": "EQUIPEMENT STANDARD, MOTORISATION; July 2011 footer",
                "evidence": "The original Jeanneau inventory explicitly names standard Yanmar 4JH4-TCE Sail-Drive, 75 hp / 55 kW.",
                "note": "Explicit standard engine in the July 2011 preliminary manufacturer inventory for the Sun Odyssey 509 design. The catalogue's 2014 hulls are not individually verified; this is not a specification for the later 519. Catalogue build years reviewed: 2014. The original Jeanneau inventory explicitly names standard Yanmar 4JH4-TCE Sail-Drive, 75 hp / 55 kW."
              },
              "sources": [
                {
                  "id": "js-so509-inventory",
                  "title": "Jeanneau Sun Odyssey 509 preliminary standard inventory, July 2011",
                  "url": "https://www.mottemarine.fr/images/pic_bateaux/2011/d754_inventaire_sunodyssey509.pdf",
                  "kind": "manufacturer-specification",
                  "locator": "EQUIPEMENT STANDARD, MOTORISATION; July 2011 footer",
                  "evidence": "The original Jeanneau inventory explicitly names standard Yanmar 4JH4-TCE Sail-Drive, 75 hp / 55 kW.",
                  "note": "Explicit standard engine in the July 2011 preliminary manufacturer inventory for the Sun Odyssey 509 design. The catalogue's 2014 hulls are not individually verified; this is not a specification for the later 519. Catalogue build years reviewed: 2014. The original Jeanneau inventory explicitly names standard Yanmar 4JH4-TCE Sail-Drive, 75 hp / 55 kW."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 55.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 509\" \"engine\" Yanmar",
              "\"Sun Odyssey 509\" \"4JH4-TCE\" pdf -site:manualzz.com -site:manualslib.com",
              "\"Sun Odyssey 509\" \"4JH4-TCE\" Jeanneau brochure"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-125533-yanmar-4jh4tce-1"
        },
        {
          "name": "Sun Odyssey 519",
          "boatType": "sailing-yacht",
          "yachtModelId": 1070507,
          "sourceModelIds": [
            1070507,
            1205184
          ],
          "sourceModelNames": [
            "Sun Odyssey 519 - 5 + 1 cab.",
            "Sun Odyssey 519 - 5 cab."
          ],
          "defaultEngineCount": 1,
          "engineSetups": [
            {
              "id": "research-1070507-yanmar-4jh80-1",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 1,
              "applicability": "Only the broker's 2018 Sun Odyssey 519 with a 2018 engine. Does not establish the catalogue's 2016 installation; no silent substitution of the 509's 4JH4-TCE. Catalogue build years reviewed: 2016, 2018.",
              "source": {
                "id": "js-so519-bottega",
                "title": "La Bottega del Mare: 2018 Sun Odyssey 519",
                "url": "https://www.labottegadelmare.com/barche-toscana/vendita-barche-usate/2018-Jeanneau-Sun_Odyssey_519-EN.pdf",
                "kind": "documented-vessel-example",
                "locator": "Page 2, Boat Details and Information & Features",
                "evidence": "The broker's vessel PDF identifies a 2018 Sun Odyssey 519 with one 2018 Yanmar 4JH80 rated 80 hp and saildrive.",
                "note": "Only the broker's 2018 Sun Odyssey 519 with a 2018 engine. Does not establish the catalogue's 2016 installation; no silent substitution of the 509's 4JH4-TCE. Catalogue build years reviewed: 2016, 2018. The broker's vessel PDF identifies a 2018 Sun Odyssey 519 with one 2018 Yanmar 4JH80 rated 80 hp and saildrive."
              },
              "sources": [
                {
                  "id": "js-so519-bottega",
                  "title": "La Bottega del Mare: 2018 Sun Odyssey 519",
                  "url": "https://www.labottegadelmare.com/barche-toscana/vendita-barche-usate/2018-Jeanneau-Sun_Odyssey_519-EN.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Page 2, Boat Details and Information & Features",
                  "evidence": "The broker's vessel PDF identifies a 2018 Sun Odyssey 519 with one 2018 Yanmar 4JH80 rated 80 hp and saildrive.",
                  "note": "Only the broker's 2018 Sun Odyssey 519 with a 2018 engine. Does not establish the catalogue's 2016 installation; no silent substitution of the 509's 4JH4-TCE. Catalogue build years reviewed: 2016, 2018. The broker's vessel PDF identifies a 2018 Sun Odyssey 519 with one 2018 Yanmar 4JH80 rated 80 hp and saildrive."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 58.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sun Odyssey 519\" \"engine\" Yanmar",
              "\"Sun Odyssey 519\" \"4JH80\" specification -site:boattomorrow.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1070507-yanmar-4jh80-1"
        }
      ]
    },
    {
      "name": "Lagoon",
      "models": [
        {
          "name": "Lagoon 38",
          "boatType": "catamaran",
          "yachtModelId": 53770131,
          "sourceModelIds": [
            53770131,
            62675462,
            69208192
          ],
          "sourceModelNames": [
            "Lagoon 38 - 3 + 2 cab.",
            "Lagoon 38 - 4 + 2 cab.",
            "Lagoon 38 - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-53770131-yanmar-3ym30ae-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30AE",
              "engineDisplayName": "Yanmar 3YM30AE",
              "engineReferenceId": "yanmar_3ym30ae",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025. New-design 2026 Lagoon 38 hull 6 in Church Point only; never mapped from Lagoon 380. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag38",
                "title": "TMG seller listing: 2026 Lagoon 38 hull 6, Church Point",
                "url": "https://www.boats.com/sailing-boats/2026-lagoon-38-10073292/",
                "kind": "documented-vessel-example",
                "locator": "Engines; description of Lagoon 38 hull 6",
                "evidence": "The new Lagoon 38 example explicitly has two Yanmar 3YM30AE 29 hp engines; it is not the older Lagoon 380.",
                "note": "Catalogue build years: 2026, 2025. New-design 2026 Lagoon 38 hull 6 in Church Point only; never mapped from Lagoon 380. Vessel evidence is not universal factory fit. The new Lagoon 38 example explicitly has two Yanmar 3YM30AE 29 hp engines; it is not the older Lagoon 380."
              },
              "sources": [
                {
                  "id": "cat-lag38",
                  "title": "TMG seller listing: 2026 Lagoon 38 hull 6, Church Point",
                  "url": "https://www.boats.com/sailing-boats/2026-lagoon-38-10073292/",
                  "kind": "documented-vessel-example",
                  "locator": "Engines; description of Lagoon 38 hull 6",
                  "evidence": "The new Lagoon 38 example explicitly has two Yanmar 3YM30AE 29 hp engines; it is not the older Lagoon 380.",
                  "note": "Catalogue build years: 2026, 2025. New-design 2026 Lagoon 38 hull 6 in Church Point only; never mapped from Lagoon 380. Vessel evidence is not universal factory fit. The new Lagoon 38 example explicitly has two Yanmar 3YM30AE 29 hp engines; it is not the older Lagoon 380."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_3YM30_A4_082022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 42.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 38\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-53770131-yanmar-3ym30ae-2"
        },
        {
          "name": "Lagoon 39",
          "boatType": "catamaran",
          "yachtModelId": 529930,
          "sourceModelIds": [
            529930
          ],
          "sourceModelNames": [
            "Lagoon 39 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-529930-yanmar-3ym30-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2017, 2016. 2013 ALVOCO example only, outside the catalogue's 2016/2017 build years. No inference that later hulls retain the non-AE engine. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag39",
                "title": "SAIL Tahiti: 2013 Lagoon 39 ALVOCO seller listing",
                "url": "https://www.boats.com/sailing-boats/2013-lagoon-39-10160650/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion; vessel description ALVOCO",
                "evidence": "The original broker identifies twin Yanmar 3YM30 engines, 29 hp each, from 2013.",
                "note": "Catalogue build years: 2017, 2016. 2013 ALVOCO example only, outside the catalogue's 2016/2017 build years. No inference that later hulls retain the non-AE engine. Vessel evidence is not universal factory fit. The original broker identifies twin Yanmar 3YM30 engines, 29 hp each, from 2013."
              },
              "sources": [
                {
                  "id": "cat-lag39",
                  "title": "SAIL Tahiti: 2013 Lagoon 39 ALVOCO seller listing",
                  "url": "https://www.boats.com/sailing-boats/2013-lagoon-39-10160650/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion; vessel description ALVOCO",
                  "evidence": "The original broker identifies twin Yanmar 3YM30 engines, 29 hp each, from 2013.",
                  "note": "Catalogue build years: 2017, 2016. 2013 ALVOCO example only, outside the catalogue's 2016/2017 build years. No inference that later hulls retain the non-AE engine. Vessel evidence is not universal factory fit. The original broker identifies twin Yanmar 3YM30 engines, 29 hp each, from 2013."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 42.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 39\" \"engine model\"",
              "\"Lagoon 39\" \"2017\" \"3YM30AE\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-529930-yanmar-3ym30-2"
        },
        {
          "name": "Lagoon 40",
          "boatType": "catamaran",
          "yachtModelId": 4298201,
          "sourceModelIds": [
            4298201,
            7943351,
            8066374
          ],
          "sourceModelNames": [
            "Lagoon 40 - 3 + 2 cab",
            "Lagoon 40 - 4 + 1 cab.",
            "Lagoon 40 - 4 + 2 cab"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-4298201-yanmar-4jh45-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "engineReferenceId": "yanmar_4jh45",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Lazio vessel only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag40",
                "title": "Broker seller listing: 2019 Lagoon 40, Lazio",
                "url": "https://www.boats.com/sailing-boats/2019-lagoon-40-9783288/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, both engine entries",
                "evidence": "This 2019 Lagoon 40 explicitly has two Yanmar 4JH45 engines, each rated 45 hp.",
                "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Lazio vessel only. Vessel evidence is not universal factory fit. This 2019 Lagoon 40 explicitly has two Yanmar 4JH45 engines, each rated 45 hp."
              },
              "sources": [
                {
                  "id": "cat-lag40",
                  "title": "Broker seller listing: 2019 Lagoon 40, Lazio",
                  "url": "https://www.boats.com/sailing-boats/2019-lagoon-40-9783288/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, both engine entries",
                  "evidence": "This 2019 Lagoon 40 explicitly has two Yanmar 4JH45 engines, each rated 45 hp.",
                  "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Lazio vessel only. Vessel evidence is not universal factory fit. This 2019 Lagoon 40 explicitly has two Yanmar 4JH45 engines, each rated 45 hp."
                }
              ],
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 66.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-4298201-yanmar-4jh57-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Simpson Marine reference 8861191 vessel only; separate documented fit, not inferred from Lagoon 42. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag40-57",
                "title": "Simpson Marine: 2019 Lagoon 40, reference 8861191",
                "url": "https://www.simpsonmarine.com/yachts/Lagoon-40-8861191/pdf/",
                "kind": "documented-vessel-example",
                "locator": "PROPULSION",
                "evidence": "The original broker names two 2019 Yanmar 4JH57 engines, 57 hp each. This separate installation is not assumed to be a universal factory option.",
                "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Simpson Marine reference 8861191 vessel only; separate documented fit, not inferred from Lagoon 42. Vessel evidence is not universal factory fit. The original broker names two 2019 Yanmar 4JH57 engines, 57 hp each. This separate installation is not assumed to be a universal factory option."
              },
              "sources": [
                {
                  "id": "cat-lag40-57",
                  "title": "Simpson Marine: 2019 Lagoon 40, reference 8861191",
                  "url": "https://www.simpsonmarine.com/yachts/Lagoon-40-8861191/pdf/",
                  "kind": "documented-vessel-example",
                  "locator": "PROPULSION",
                  "evidence": "The original broker names two 2019 Yanmar 4JH57 engines, 57 hp each. This separate installation is not assumed to be a universal factory option.",
                  "note": "Catalogue build years: 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018. 2019 Simpson Marine reference 8861191 vessel only; separate documented fit, not inferred from Lagoon 42. Vessel evidence is not universal factory fit. The original broker names two 2019 Yanmar 4JH57 engines, 57 hp each. This separate installation is not assumed to be a universal factory option."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 40\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4298201-yanmar-4jh45-2"
        },
        {
          "name": "Lagoon 42",
          "boatType": "catamaran",
          "yachtModelId": 1027822,
          "sourceModelIds": [
            1027822,
            1323114,
            3818374,
            9049497
          ],
          "sourceModelNames": [
            "Lagoon 42 - 3 + 1 cab.",
            "Lagoon 42 - 4 + 1 cab.",
            "Lagoon 42 - 4 + 2 cab.",
            "Lagoon 42 OW"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "lagoon-42-2016-generation-documented-45",
              "label": "Documented 45 hp configuration",
              "engineReferenceId": "yanmar_4jh45",
              "engineCount": 2,
              "source": {
                "title": "Published 2020 Lagoon 42 PAU HANA vessel specification",
                "url": "https://www.catamarans.com/Brochure/Brochure_453495_10-07-2025_15_18_17.pdf",
                "kind": "documented-vessel-example",
                "note": "The selling broker's original vessel specification lists twin Yanmar 4JH45 engines. A documented alternative, not an assertion about all Lagoon 42 boats."
              },
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "configuration": "documented-vessel",
              "applicability": "The selling broker's original vessel specification lists twin Yanmar 4JH45 engines. A documented alternative, not an assertion about all Lagoon 42 boats.",
              "sources": [
                {
                  "id": "cat-lag42-45",
                  "title": "The Catamaran Company: 2020 Lagoon 42 PAU HANA",
                  "url": "https://www.catamarans.com/Brochure/Brochure_453495_10-07-2025_15_18_17.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Vessel specifications / Engine Model and Engine Configuration",
                  "evidence": "The original broker lists Yanmar 4JH45, 45 hp, twin configuration, with 2019 engine years on a 2020 vessel.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. 2020 PAU HANA only; source dates the engines 2019. Vessel evidence is not universal factory fit. The original broker lists Yanmar 4JH45, 45 hp, twin configuration, with 2019 engine years on a 2020 vessel."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 66.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-1027822-yanmar-4jh57-2",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. E2024 dealer specification expressly valid for delivery through 31 December 2024, in both named base layouts; not every earlier Lagoon 42. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag42-2024",
                "title": "Lagoon Katamaran Nord: Lagoon 42 E2024 specification",
                "url": "https://www.lagoon-catamaran.de/fileadmin/user_upload/Lagoon_42_E2024_.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "Base owner version; four-cabin version; delivery through 31 December 2024",
                "evidence": "The dated dealer list explicitly names twin Yanmar 4JH57 engines of 57 hp in both base layouts.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. E2024 dealer specification expressly valid for delivery through 31 December 2024, in both named base layouts; not every earlier Lagoon 42. Vessel evidence is not universal factory fit. The dated dealer list explicitly names twin Yanmar 4JH57 engines of 57 hp in both base layouts."
              },
              "sources": [
                {
                  "id": "cat-lag42-2024",
                  "title": "Lagoon Katamaran Nord: Lagoon 42 E2024 specification",
                  "url": "https://www.lagoon-catamaran.de/fileadmin/user_upload/Lagoon_42_E2024_.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "Base owner version; four-cabin version; delivery through 31 December 2024",
                  "evidence": "The dated dealer list explicitly names twin Yanmar 4JH57 engines of 57 hp in both base layouts.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. E2024 dealer specification expressly valid for delivery through 31 December 2024, in both named base layouts; not every earlier Lagoon 42. Vessel evidence is not universal factory fit. The dated dealer list explicitly names twin Yanmar 4JH57 engines of 57 hp in both base layouts."
                },
                {
                  "id": "cat-lag42-57",
                  "title": "Lagoon dealer: documented 2020 Lagoon 42, reference 50",
                  "url": "https://www.lagoon-catamaran.de/gebrauchtboote/detail/lagoon-42-50.html",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed 2020 vessel description / Motor",
                  "evidence": "The dealer describes a 2020 four-cabin Lagoon 42 and explicitly names Yanmar 4JH57. The prior reviewed registry supplies the twin-engine count; a fresh search reconfirmed model and year, although direct page retrieval did not complete.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017. Dealer's documented 2020 four-cabin example only; independent alternative to PAU HANA. Vessel evidence is not universal factory fit. The dealer describes a 2020 four-cabin Lagoon 42 and explicitly names Yanmar 4JH57. The prior reviewed registry supplies the twin-engine count; a fresh search reconfirmed model and year, although direct page retrieval did not complete."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 7
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 11
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 10
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 42\" \"4JH45\" broker",
              "\"Lagoon 42\" \"PAU HANA\" \"4JH45\"",
              "\"Lagoon 42\" \"4JH57\" site:lagoon-catamaran.de/gebrauchtboote/detail/lagoon-42-50.html"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "lagoon-42-2016-generation-documented-45"
        },
        {
          "name": "Lagoon 43",
          "boatType": "catamaran",
          "yachtModelId": 46950302,
          "sourceModelIds": [
            46950302,
            54240504,
            72305280
          ],
          "sourceModelNames": [
            "Lagoon 43 - 3 + 1 cab. OW",
            "Lagoon 43 - 4 + 1 cab.",
            "Lagoon 43 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-46950302-yanmar-4jh57-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025. New-generation 2026 sailing Lagoon 43 in Gibraltar with 2025 engines only; not the old Lagoon 43 Powercat. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag43",
                "title": "Harel Yachts: 2026 Lagoon 43, Gibraltar seller listing",
                "url": "https://www.boats.com/sailing-boats/2026-lagoon-43-10108131/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, both engine entries",
                "evidence": "The new-generation sailing Lagoon 43 is listed with two Yanmar 4JH57 engines, 57 hp each, engine year 2025; not the old 43 Powercat.",
                "note": "Catalogue build years: 2026, 2025. New-generation 2026 sailing Lagoon 43 in Gibraltar with 2025 engines only; not the old Lagoon 43 Powercat. Vessel evidence is not universal factory fit. The new-generation sailing Lagoon 43 is listed with two Yanmar 4JH57 engines, 57 hp each, engine year 2025; not the old 43 Powercat."
              },
              "sources": [
                {
                  "id": "cat-lag43",
                  "title": "Harel Yachts: 2026 Lagoon 43, Gibraltar seller listing",
                  "url": "https://www.boats.com/sailing-boats/2026-lagoon-43-10108131/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, both engine entries",
                  "evidence": "The new-generation sailing Lagoon 43 is listed with two Yanmar 4JH57 engines, 57 hp each, engine year 2025; not the old 43 Powercat.",
                  "note": "Catalogue build years: 2026, 2025. New-generation 2026 sailing Lagoon 43 in Gibraltar with 2025 engines only; not the old Lagoon 43 Powercat. Vessel evidence is not universal factory fit. The new-generation sailing Lagoon 43 is listed with two Yanmar 4JH57 engines, 57 hp each, engine year 2025; not the old 43 Powercat."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 11
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 5
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 43\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-46950302-yanmar-4jh57-2"
        },
        {
          "name": "Lagoon 46",
          "boatType": "catamaran",
          "yachtModelId": 9963355,
          "sourceModelIds": [
            9963355,
            10350661,
            10772421
          ],
          "sourceModelNames": [
            "Lagoon 46 - 4 + 1 cab.",
            "Lagoon 46 - 4 + 2 cab.",
            "Lagoon 46 OW - 3 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-9963355-yanmar-4jh57-2",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. B2026 dealer price-list standard engine; do not retroactively apply to all 2020-2025 vessels. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag46",
                "title": "Lagoon Katamaran Nord: Lagoon 46 price list B2026",
                "url": "https://www.lagoon-catamaran.de/fileadmin/B2026/Preisliste_Lagoon46_B2026_EN.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "BOAT / STANDARD",
                "evidence": "The dealer's 2026 specification explicitly defines standard equipment as two Yanmar 4JH57 engines of 57 hp.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. B2026 dealer price-list standard engine; do not retroactively apply to all 2020-2025 vessels. Vessel evidence is not universal factory fit. The dealer's 2026 specification explicitly defines standard equipment as two Yanmar 4JH57 engines of 57 hp."
              },
              "sources": [
                {
                  "id": "cat-lag46",
                  "title": "Lagoon Katamaran Nord: Lagoon 46 price list B2026",
                  "url": "https://www.lagoon-catamaran.de/fileadmin/B2026/Preisliste_Lagoon46_B2026_EN.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "BOAT / STANDARD",
                  "evidence": "The dealer's 2026 specification explicitly defines standard equipment as two Yanmar 4JH57 engines of 57 hp.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023, 2022, 2021, 2020. B2026 dealer price-list standard engine; do not retroactively apply to all 2020-2025 vessels. Vessel evidence is not universal factory fit. The dealer's 2026 specification explicitly defines standard equipment as two Yanmar 4JH57 engines of 57 hp."
                },
                {
                  "title": "Lagoon dealer vessel specification: Lagoon 46, reference 275",
                  "url": "https://www.lagoon-catamaran.de/fileadmin/user_upload/Expose_Lagoon_46_275.pdf",
                  "kind": "documented-vessel-example",
                  "note": "This dealer vessel specification lists two Yanmar 4JH57 engines. Other engine options and individual boats may differ."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 11
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 11
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 11
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 8
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 46\" \"4JH57\" dealer"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-9963355-yanmar-4jh57-2"
        },
        {
          "name": "Lagoon 50",
          "boatType": "catamaran",
          "yachtModelId": 4327930,
          "sourceModelIds": [
            4327930,
            4411613,
            6871456,
            7913530,
            8510191
          ],
          "sourceModelNames": [
            "Lagoon 50",
            "Lagoon 50 - 5 + 2 cab.",
            "Lagoon 50 - 6 + 1 cab.",
            "Lagoon 50 - 6 + 2 cab.",
            "Lagoon 50 OW - 4 + 1 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-4327930-yanmar-4jh80-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2023, 2022, 2021, 2020, 2019, 2018. 2020 HORTZ vessel only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag50",
                "title": "Broker seller listing: 2020 Lagoon 50 HORTZ",
                "url": "https://www.yachtworld.com/yacht/2020-lagoon-50-10055308/",
                "kind": "documented-vessel-example",
                "locator": "Inventory / Engines",
                "evidence": "The vessel inventory explicitly lists two Yanmar 4JH80 engines, 80 hp, with engine years March 2020.",
                "note": "Catalogue build years: 2023, 2022, 2021, 2020, 2019, 2018. 2020 HORTZ vessel only. Vessel evidence is not universal factory fit. The vessel inventory explicitly lists two Yanmar 4JH80 engines, 80 hp, with engine years March 2020."
              },
              "sources": [
                {
                  "id": "cat-lag50",
                  "title": "Broker seller listing: 2020 Lagoon 50 HORTZ",
                  "url": "https://www.yachtworld.com/yacht/2020-lagoon-50-10055308/",
                  "kind": "documented-vessel-example",
                  "locator": "Inventory / Engines",
                  "evidence": "The vessel inventory explicitly lists two Yanmar 4JH80 engines, 80 hp, with engine years March 2020.",
                  "note": "Catalogue build years: 2023, 2022, 2021, 2020, 2019, 2018. 2020 HORTZ vessel only. Vessel evidence is not universal factory fit. The vessel inventory explicitly lists two Yanmar 4JH80 engines, 80 hp, with engine years March 2020."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 50\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-4327930-yanmar-4jh80-2"
        },
        {
          "name": "Lagoon 51",
          "boatType": "catamaran",
          "yachtModelId": 30797964,
          "sourceModelIds": [
            30797964,
            33359702,
            37953460,
            40008772
          ],
          "sourceModelNames": [
            "Lagoon 51 - 6 + 1 cab.",
            "Lagoon 51 - 6 + 2 cab.",
            "Lagoon 51 - 6 cab.",
            "Lagoon 51 OW - 4 + 1 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-30797964-yanmar-4jh80-2",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. A2026 list dated September 2025, covering its explicitly listed Lagoon 51 layouts; not proof of individual 2023-2025 engines. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag51",
                "title": "Lagoon Katamaran Nord: Lagoon 51 price list A2026",
                "url": "https://www.lagoon-catamaran.de/fileadmin/Preislisten/A2026/Lagoon_51_Preisliste_A2026_EN.pdf",
                "kind": "authorized-dealer-specification",
                "locator": "September 2025 A2026, BOAT / STANDARD and LAYOUT",
                "evidence": "The 2026 list explicitly specifies two Yanmar 4JH80 engines, 80 hp each, across listed cabin arrangements.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023. A2026 list dated September 2025, covering its explicitly listed Lagoon 51 layouts; not proof of individual 2023-2025 engines. Vessel evidence is not universal factory fit. The 2026 list explicitly specifies two Yanmar 4JH80 engines, 80 hp each, across listed cabin arrangements."
              },
              "sources": [
                {
                  "id": "cat-lag51",
                  "title": "Lagoon Katamaran Nord: Lagoon 51 price list A2026",
                  "url": "https://www.lagoon-catamaran.de/fileadmin/Preislisten/A2026/Lagoon_51_Preisliste_A2026_EN.pdf",
                  "kind": "authorized-dealer-specification",
                  "locator": "September 2025 A2026, BOAT / STANDARD and LAYOUT",
                  "evidence": "The 2026 list explicitly specifies two Yanmar 4JH80 engines, 80 hp each, across listed cabin arrangements.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023. A2026 list dated September 2025, covering its explicitly listed Lagoon 51 layouts; not proof of individual 2023-2025 engines. Vessel evidence is not universal factory fit. The 2026 list explicitly specifies two Yanmar 4JH80 engines, 80 hp each, across listed cabin arrangements."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 5
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 51\" \"engine model\"",
              "\"Lagoon 51\" \"4JH80\" site:lagoon-catamaran.de"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-30797964-yanmar-4jh80-2"
        },
        {
          "name": "Lagoon 52",
          "boatType": "catamaran",
          "yachtModelId": 844978,
          "sourceModelIds": [
            844978,
            858120
          ],
          "sourceModelNames": [
            "Lagoon 52 - 5 + 2 cab.",
            "Lagoon 52 - 6 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-844978-yanmar-4jh4tce-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4TCE",
              "engineDisplayName": "Yanmar 4JH4TCE",
              "engineReferenceId": "review_yanmar_4jh4tce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build year: 2015. Original broker reference 1500, a 2015 Lagoon 52 four-cabin vessel in Greece, only. Exact model spelling is preserved from its engine field. The broker explicitly calls this boat Lagoon 52; this evidence is not borrowed from the separately normalized Lagoon 52 F and does not prove universal factory fit.",
              "source": {
                "id": "cat-lag52-2015-ref1500",
                "title": "Windward Islands Yachting & Travel: 2015 Lagoon 52, broker reference 1500",
                "url": "https://www.worldwideyachtbroker.com/en/pdf/1500",
                "kind": "documented-vessel-example",
                "locator": "Page 1 / LAGOON 52 4 cabins version (2015); Engine; Engine HP; Comments",
                "evidence": "The original broker PDF labels this four-cabin vessel Lagoon 52, built in 2015, and explicitly lists two Yanmar 4JH4TCE engines of 75 hp. It does not label the vessel 52 F.",
                "note": "Catalogue build year: 2015. Original broker reference 1500, a 2015 Lagoon 52 four-cabin vessel in Greece, only. Exact model spelling is preserved from its engine field. The broker explicitly calls this boat Lagoon 52; this evidence is not borrowed from the separately normalized Lagoon 52 F and does not prove universal factory fit. The original broker PDF labels this four-cabin vessel Lagoon 52, built in 2015, and explicitly lists two Yanmar 4JH4TCE engines of 75 hp. It does not label the vessel 52 F."
              },
              "sources": [
                {
                  "id": "cat-lag52-2015-ref1500",
                  "title": "Windward Islands Yachting & Travel: 2015 Lagoon 52, broker reference 1500",
                  "url": "https://www.worldwideyachtbroker.com/en/pdf/1500",
                  "kind": "documented-vessel-example",
                  "locator": "Page 1 / LAGOON 52 4 cabins version (2015); Engine; Engine HP; Comments",
                  "evidence": "The original broker PDF labels this four-cabin vessel Lagoon 52, built in 2015, and explicitly lists two Yanmar 4JH4TCE engines of 75 hp. It does not label the vessel 52 F.",
                  "note": "Catalogue build year: 2015. Original broker reference 1500, a 2015 Lagoon 52 four-cabin vessel in Greece, only. Exact model spelling is preserved from its engine field. The broker explicitly calls this boat Lagoon 52; this evidence is not borrowed from the separately normalized Lagoon 52 F and does not prove universal factory fit. The original broker PDF labels this four-cabin vessel Lagoon 52, built in 2015, and explicitly lists two Yanmar 4JH4TCE engines of 75 hp. It does not label the vessel 52 F."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.abcpm.co.uk/downloads/engines/yanmar/sd50.pdf",
                  "https://www.navela.hr/site_media/media/uploads/engines/documents/SD60_OPMen_0ASDM-G00200.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 52\" \"2015\" \"engine model\"",
              "\"Lagoon 52\" \"2015\" \"4JH4\"",
              "\"Lagoon 52\" \"2015\" \"4JH4-TE\" broker",
              "\"Lagoon 52\" \"Farasha\" \"4JH4\"",
              "\"Lagoon 52\" \"Farasha\" site:multihullcompany.com",
              "\"Lagoon 52\" \"2015\" \"4JH4-TE\" site:multihullcompany.com",
              "Lagoon 52 2015 Yanmar engine specifications broker PDF",
              "Lagoon 52 owners manual engines 2013 2014",
              "\"Lagoon 52\" \"owner manual\" Yanmar",
              "\"Lagoon 52\" \"4JH\" \"pdf\" -F -site:dailyboats.com",
              "\"Lagoon 52\" \"4JH4TCE\"",
              "\"Lagoon 52\" \"4JH5CE\" manual"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-844978-yanmar-4jh4tce-2"
        },
        {
          "name": "Lagoon 52 F",
          "boatType": "catamaran",
          "yachtModelId": 6260488,
          "sourceModelIds": [
            6260488,
            8784320,
            10138482,
            13363102
          ],
          "sourceModelNames": [
            "Lagoon 52 F - 4 + 2 cab.",
            "Lagoon 52 F - 5 + 2 cab.",
            "Lagoon 52 F - 6 + 2 cab.",
            "Lagoon 52 F OW - 3 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-6260488-yanmar-4jh4te-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-TE",
              "engineDisplayName": "Yanmar 4JH4-TE",
              "engineReferenceId": "review_yanmar_4jh4te",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2021, 2019, 2017, 2013. 2015 SERENITY, refitted 2023, only. This build year is outside catalogue years 2013/2017/2019/2021; no claim about those builds. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag52f",
                "title": "Adriatic Sailing: 2015 Lagoon 52 F SERENITY",
                "url": "https://www.adriatic-sailing.hr/Downloads/Lagoon52f-Serenity.pdf",
                "kind": "documented-vessel-example",
                "locator": "Year of Build/Refit; engine, generator and performance",
                "evidence": "The charter operator identifies 2015 build, 2023 refit and two Yanmar 4JH4-TE main engines, 75 hp each.",
                "note": "Catalogue build years: 2021, 2019, 2017, 2013. 2015 SERENITY, refitted 2023, only. This build year is outside catalogue years 2013/2017/2019/2021; no claim about those builds. Vessel evidence is not universal factory fit. The charter operator identifies 2015 build, 2023 refit and two Yanmar 4JH4-TE main engines, 75 hp each."
              },
              "sources": [
                {
                  "id": "cat-lag52f",
                  "title": "Adriatic Sailing: 2015 Lagoon 52 F SERENITY",
                  "url": "https://www.adriatic-sailing.hr/Downloads/Lagoon52f-Serenity.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Year of Build/Refit; engine, generator and performance",
                  "evidence": "The charter operator identifies 2015 build, 2023 refit and two Yanmar 4JH4-TE main engines, 75 hp each.",
                  "note": "Catalogue build years: 2021, 2019, 2017, 2013. 2015 SERENITY, refitted 2023, only. This build year is outside catalogue years 2013/2017/2019/2021; no claim about those builds. Vessel evidence is not universal factory fit. The charter operator identifies 2015 build, 2023 refit and two Yanmar 4JH4-TE main engines, 75 hp each."
                }
              ],
              "selectionPower": {
                "kw": 55.2,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH4-TE.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 110.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-6260488-yanmar-4jh80-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2021, 2019, 2017, 2013. 2017 St Thomas vessel with 2016 main engines only. Only two propulsion engines counted; the separately listed generator and tender engine are excluded. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag52f-2017",
                "title": "Broker vessel listing: 2017 Lagoon 52 F, St Thomas",
                "url": "https://www.boattrader.com/boat/2017-lagoon-52-f-9455248/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, Engine 1 / Engine 2; Engine and Helm Station",
                "evidence": "The two main propulsion engines are explicitly Yanmar 4JH80, 80 hp each, engine year 2016. Additional listed Onan and Honda units are generator and tender equipment, not additional propulsion engines.",
                "note": "Catalogue build years: 2021, 2019, 2017, 2013. 2017 St Thomas vessel with 2016 main engines only. Only two propulsion engines counted; the separately listed generator and tender engine are excluded. Vessel evidence is not universal factory fit. The two main propulsion engines are explicitly Yanmar 4JH80, 80 hp each, engine year 2016. Additional listed Onan and Honda units are generator and tender equipment, not additional propulsion engines."
              },
              "sources": [
                {
                  "id": "cat-lag52f-2017",
                  "title": "Broker vessel listing: 2017 Lagoon 52 F, St Thomas",
                  "url": "https://www.boattrader.com/boat/2017-lagoon-52-f-9455248/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, Engine 1 / Engine 2; Engine and Helm Station",
                  "evidence": "The two main propulsion engines are explicitly Yanmar 4JH80, 80 hp each, engine year 2016. Additional listed Onan and Honda units are generator and tender equipment, not additional propulsion engines.",
                  "note": "Catalogue build years: 2021, 2019, 2017, 2013. 2017 St Thomas vessel with 2016 main engines only. Only two propulsion engines counted; the separately listed generator and tender engine are excluded. Vessel evidence is not universal factory fit. The two main propulsion engines are explicitly Yanmar 4JH80, 80 hp each, engine year 2016. Additional listed Onan and Honda units are generator and tender equipment, not additional propulsion engines."
                },
                {
                  "id": "cat-lag52f-80",
                  "title": "The Multihull Company: 2020 Lagoon 52 F CHICAGO",
                  "url": "https://www.multihullcompany.com/boat/lagoon-52-f-9978544/",
                  "kind": "documented-vessel-example",
                  "locator": "Engines and Propulsion",
                  "evidence": "The broker explicitly lists two Yanmar 4JH80 engines, 80 hp each, on this 2020 Lagoon 52F.",
                  "note": "Catalogue build years: 2021, 2019, 2017, 2013. 2020 CHICAGO example only, outside catalogue build coverage; not inferred for the separate Lagoon 52 entry. Vessel evidence is not universal factory fit. The broker explicitly lists two Yanmar 4JH80 engines, 80 hp each, on this 2020 Lagoon 52F."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 52 F\" \"engine model\"",
              "\"Lagoon 52 F\" \"2017\" \"4JH80\" site:catamarans.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-6260488-yanmar-4jh4te-2"
        },
        {
          "name": "Lagoon 55",
          "boatType": "catamaran",
          "yachtModelId": 23457678,
          "sourceModelIds": [
            23457678,
            50884928,
            58373524,
            63227530
          ],
          "sourceModelNames": [
            "Lagoon 55 - 4 + 2 cab.",
            "Lagoon 55 - 4 cab.",
            "Lagoon 55 - 5 + 1 cab.",
            "Lagoon 55 - 5 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-23457678-yanmar-4jh80-2",
              "label": "Published engine configuration",
              "configuration": "published-configuration",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. Marine Servicenter's 2026 new-boat offer only. Template gives 2022 engine years; this is a published offer, not proof of a particular delivered hull. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag55-y",
                "title": "Marine Servicenter: 2026 Lagoon 55 new-boat offer",
                "url": "https://www.boats.com/sailing-boats/2026-lagoon-55-9020273/",
                "kind": "authorized-dealer-specification",
                "locator": "Propulsion, both engine entries",
                "evidence": "The dealer's new-boat offer identifies two Yanmar 4JH80 engines of 80 hp. The template separately labels engine years 2022, so it does not establish a specific delivered 2026 hull.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023. Marine Servicenter's 2026 new-boat offer only. Template gives 2022 engine years; this is a published offer, not proof of a particular delivered hull. Vessel evidence is not universal factory fit. The dealer's new-boat offer identifies two Yanmar 4JH80 engines of 80 hp. The template separately labels engine years 2022, so it does not establish a specific delivered 2026 hull."
              },
              "sources": [
                {
                  "id": "cat-lag55-y",
                  "title": "Marine Servicenter: 2026 Lagoon 55 new-boat offer",
                  "url": "https://www.boats.com/sailing-boats/2026-lagoon-55-9020273/",
                  "kind": "authorized-dealer-specification",
                  "locator": "Propulsion, both engine entries",
                  "evidence": "The dealer's new-boat offer identifies two Yanmar 4JH80 engines of 80 hp. The template separately labels engine years 2022, so it does not establish a specific delivered 2026 hull.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023. Marine Servicenter's 2026 new-boat offer only. Template gives 2022 engine years; this is a published offer, not proof of a particular delivered hull. Vessel evidence is not universal factory fit. The dealer's new-boat offer identifies two Yanmar 4JH80 engines of 80 hp. The template separately labels engine years 2022, so it does not establish a specific delivered 2026 hull."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-23457678-yanmar-4jh110-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH110",
              "engineDisplayName": "Yanmar 4JH110",
              "engineReferenceId": "yanmar_4jh110",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. 2026 STELLA MARE charter vessel only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag55-110",
                "title": "Horizon Yacht Sales: 2026 Lagoon 55 STELLA MARE",
                "url": "https://boats.com/sailing-boats/2026-lagoon-55-10311002/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, both engine entries; STELLA MARE description",
                "evidence": "The operator/broker's 2026 vessel listing explicitly identifies two Yanmar 4JH110 engines, 110 hp each.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023. 2026 STELLA MARE charter vessel only. Vessel evidence is not universal factory fit. The operator/broker's 2026 vessel listing explicitly identifies two Yanmar 4JH110 engines, 110 hp each."
              },
              "sources": [
                {
                  "id": "cat-lag55-110",
                  "title": "Horizon Yacht Sales: 2026 Lagoon 55 STELLA MARE",
                  "url": "https://boats.com/sailing-boats/2026-lagoon-55-10311002/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, both engine entries; STELLA MARE description",
                  "evidence": "The operator/broker's 2026 vessel listing explicitly identifies two Yanmar 4JH110 engines, 110 hp each.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023. 2026 STELLA MARE charter vessel only. Vessel evidence is not universal factory fit. The operator/broker's 2026 vessel listing explicitly identifies two Yanmar 4JH110 engines, 110 hp each."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 161.8
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-23457678-nanni-n4115-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Nanni",
              "engineModel": "N4-115",
              "engineDisplayName": "Nanni N4-115",
              "engineReferenceId": "review_nanni_n4115",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025, 2024, 2023. 2023 hull 17 in Singapore only; exact source uses N4-115 hyphenation. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag55",
                "title": "Simpson Marine: 2023 Lagoon 55 hull 17",
                "url": "https://www.simpsonmarine.com/yachts/Lagoon-55-10024850/",
                "kind": "documented-vessel-example",
                "locator": "Engines; Specs and Options / LAGOON 55 #17",
                "evidence": "The original broker explicitly identifies two Nanni N4-115 engines, 115 hp each, on the 2023 example.",
                "note": "Catalogue build years: 2026, 2025, 2024, 2023. 2023 hull 17 in Singapore only; exact source uses N4-115 hyphenation. Vessel evidence is not universal factory fit. The original broker explicitly identifies two Nanni N4-115 engines, 115 hp each, on the 2023 example."
              },
              "sources": [
                {
                  "id": "cat-lag55",
                  "title": "Simpson Marine: 2023 Lagoon 55 hull 17",
                  "url": "https://www.simpsonmarine.com/yachts/Lagoon-55-10024850/",
                  "kind": "documented-vessel-example",
                  "locator": "Engines; Specs and Options / LAGOON 55 #17",
                  "evidence": "The original broker explicitly identifies two Nanni N4-115 engines, 115 hp each, on the 2023 example.",
                  "note": "Catalogue build years: 2026, 2025, 2024, 2023. 2023 hull 17 in Singapore only; exact source uses N4-115 hyphenation. Vessel evidence is not universal factory fit. The original broker explicitly identifies two Nanni N4-115 engines, 115 hp each, on the 2023 example."
                }
              ],
              "selectionPower": {
                "kw": 84.6,
                "sources": [
                  "https://nannienergy.com/wp-content/uploads/2023/11/DGBXXC01010B_N4.115-2.pdf",
                  "https://nannienergy.com/wp-content/uploads/2024/03/Product_Guide_DGBXXC03001N2.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 169.2
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 3
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 55\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-23457678-yanmar-4jh80-2"
        },
        {
          "name": "Lagoon 60",
          "boatType": "catamaran",
          "yachtModelId": 50296116,
          "sourceModelIds": [
            50296116
          ],
          "sourceModelNames": [
            "Lagoon 60 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-50296116-yanmar-4lv150-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV150",
              "engineDisplayName": "Yanmar 4LV150",
              "engineReferenceId": "review_yanmar_4lv150",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2026, 2025. 2025 Marina's Service sailing-catamaran vessel only; not an inferred fit for other 60-foot designs. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag60",
                "title": "Marina's Service: 2025 Lagoon 60 seller listing",
                "url": "https://au.yachtworld.com/yacht/2025-lagoon-60-10039389/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, Engine 1 and Engine 2",
                "evidence": "The 2025 sailing Lagoon 60 is explicitly listed with two Yanmar 4LV150 engines, 150 hp each.",
                "note": "Catalogue build years: 2026, 2025. 2025 Marina's Service sailing-catamaran vessel only; not an inferred fit for other 60-foot designs. Vessel evidence is not universal factory fit. The 2025 sailing Lagoon 60 is explicitly listed with two Yanmar 4LV150 engines, 150 hp each."
              },
              "sources": [
                {
                  "id": "cat-lag60",
                  "title": "Marina's Service: 2025 Lagoon 60 seller listing",
                  "url": "https://au.yachtworld.com/yacht/2025-lagoon-60-10039389/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, Engine 1 and Engine 2",
                  "evidence": "The 2025 sailing Lagoon 60 is explicitly listed with two Yanmar 4LV150 engines, 150 hp each.",
                  "note": "Catalogue build years: 2026, 2025. 2025 Marina's Service sailing-catamaran vessel only; not an inferred fit for other 60-foot designs. Vessel evidence is not universal factory fit. The 2025 sailing Lagoon 60 is explicitly listed with two Yanmar 4LV150 engines, 150 hp each."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1018_HR.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/YANMAR_DS_4LV150170195_A4_2020_0512.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 220
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 60\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-50296116-yanmar-4lv150-2"
        },
        {
          "name": "Lagoon 77",
          "boatType": "catamaran",
          "yachtModelId": 10100280,
          "sourceModelIds": [
            10100280
          ],
          "sourceModelNames": [
            "Lagoon 77"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-10100280-volvopenta-d4180i-2",
              "label": "Published standard engine",
              "configuration": "published-standard",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D4-180 I",
              "engineDisplayName": "Volvo Penta D4-180 I",
              "engineReferenceId": "review_volvopenta_d4180i",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build year: 2019. Exact standard engine designation in Lagoon's September 2016 Seventy 7 technical handbook, pages 8-9, for that published generation only; not proof of a particular 2019 hull's installation or continued standard fit in every later year. The 2019 operator sources cat-lag77 and cat-lag77-conflict give conflicting maker/power descriptions without a complete exact model and do not independently resolve that hull.",
              "source": {
                "id": "cat-lag77-handbook-2016",
                "title": "Lagoon Seventy 7 technical handbook, September 2016, manufacturer document reproduction",
                "url": "https://manualzz.com/doc/58479554/lagoon-seventy-7-technical-handbook",
                "kind": "manufacturer-manual",
                "locator": "Pages 3 and 8-9 / Technical sheet; Engines; Volvo Penta engine designation table",
                "evidence": "The original Lagoon handbook specifies standard Volvo engines and reproduces the exact D4-180 I designation, 132 kW / 180 hp at 2800 rpm. The twin-engine installation has separate port and starboard engine rooms. Its optional-engine line prints JOHN DEER and N5.230; that branding is not silently converted into a Nanni installation on a 2019 hull.",
                "note": "Catalogue build year: 2019. Exact standard engine designation in Lagoon's September 2016 Seventy 7 technical handbook, pages 8-9, for that published generation only; not proof of a particular 2019 hull's installation or continued standard fit in every later year. The 2019 operator sources cat-lag77 and cat-lag77-conflict give conflicting maker/power descriptions without a complete exact model and do not independently resolve that hull. The original Lagoon handbook specifies standard Volvo engines and reproduces the exact D4-180 I designation, 132 kW / 180 hp at 2800 rpm. The twin-engine installation has separate port and starboard engine rooms. Its optional-engine line prints JOHN DEER and N5.230; that branding is not silently converted into a Nanni installation on a 2019 hull."
              },
              "sources": [
                {
                  "id": "cat-lag77-handbook-2016",
                  "title": "Lagoon Seventy 7 technical handbook, September 2016, manufacturer document reproduction",
                  "url": "https://manualzz.com/doc/58479554/lagoon-seventy-7-technical-handbook",
                  "kind": "manufacturer-manual",
                  "locator": "Pages 3 and 8-9 / Technical sheet; Engines; Volvo Penta engine designation table",
                  "evidence": "The original Lagoon handbook specifies standard Volvo engines and reproduces the exact D4-180 I designation, 132 kW / 180 hp at 2800 rpm. The twin-engine installation has separate port and starboard engine rooms. Its optional-engine line prints JOHN DEER and N5.230; that branding is not silently converted into a Nanni installation on a 2019 hull.",
                  "note": "Catalogue build year: 2019. Exact standard engine designation in Lagoon's September 2016 Seventy 7 technical handbook, pages 8-9, for that published generation only; not proof of a particular 2019 hull's installation or continued standard fit in every later year. The 2019 operator sources cat-lag77 and cat-lag77-conflict give conflicting maker/power descriptions without a complete exact model and do not independently resolve that hull. The original Lagoon handbook specifies standard Volvo engines and reproduces the exact D4-180 I designation, 132 kW / 180 hp at 2800 rpm. The twin-engine installation has separate port and starboard engine rooms. Its optional-engine line prints JOHN DEER and N5.230; that branding is not silently converted into a Nanni installation on a 2019 hull."
                }
              ],
              "selectionPower": {
                "kw": 132,
                "sources": [
                  "https://www.dbmoteurs.fr/sites/default/files/T_D4_180_i--VOLVO-PENTA-DBMOTEURS-DB-MOTEURS.pdf",
                  "https://sermakpower.com/brosur/keyif-tekne/t_d4_180.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 264
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-10100280-nanni-n5230-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Nanni",
              "engineModel": "N5.230",
              "engineDisplayName": "Nanni N5.230",
              "engineReferenceId": "review_nanni_n5230cr2_2019",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build year: 2019. Exact twin Nanni installation is documented only on the 2023 Lagoon Seventy 7 MANAIA, outside catalogue coverage. This is not a universal factory fit and is not evidence that a 2019 charter boat carries this engine. The 2016 handbook's optional JOHN DEER / N5.230 wording is not silently used to relabel the engines on the 2019 vessel.",
              "source": {
                "id": "cat-lag77-manaia-2023",
                "title": "Odyssea: 2023 Lagoon Seventy 7 MANAIA original broker specification",
                "url": "https://www.odysseayachting.com/ownership-preowned-manaia-seventy-7-2023",
                "kind": "documented-vessel-example",
                "locator": "General Information / Year; Main Propulsion / Port and Starboard; Propulsion & Engineering",
                "evidence": "The broker explicitly identifies a 2023 Seventy 7 and separately lists the port and starboard main engines as Nanni N5.230, 230 hp each, with engine year 2023. This is not evidence of the installation on a 2019 boat.",
                "note": "Catalogue build year: 2019. Exact twin Nanni installation is documented only on the 2023 Lagoon Seventy 7 MANAIA, outside catalogue coverage. This is not a universal factory fit and is not evidence that a 2019 charter boat carries this engine. The 2016 handbook's optional JOHN DEER / N5.230 wording is not silently used to relabel the engines on the 2019 vessel. The broker explicitly identifies a 2023 Seventy 7 and separately lists the port and starboard main engines as Nanni N5.230, 230 hp each, with engine year 2023. This is not evidence of the installation on a 2019 boat."
              },
              "sources": [
                {
                  "id": "cat-lag77-manaia-2023",
                  "title": "Odyssea: 2023 Lagoon Seventy 7 MANAIA original broker specification",
                  "url": "https://www.odysseayachting.com/ownership-preowned-manaia-seventy-7-2023",
                  "kind": "documented-vessel-example",
                  "locator": "General Information / Year; Main Propulsion / Port and Starboard; Propulsion & Engineering",
                  "evidence": "The broker explicitly identifies a 2023 Seventy 7 and separately lists the port and starboard main engines as Nanni N5.230, 230 hp each, with engine year 2023. This is not evidence of the installation on a 2019 boat.",
                  "note": "Catalogue build year: 2019. Exact twin Nanni installation is documented only on the 2023 Lagoon Seventy 7 MANAIA, outside catalogue coverage. This is not a universal factory fit and is not evidence that a 2019 charter boat carries this engine. The 2016 handbook's optional JOHN DEER / N5.230 wording is not silently used to relabel the engines on the 2019 vessel. The broker explicitly identifies a 2023 Seventy 7 and separately lists the port and starboard main engines as Nanni N5.230, 230 hp each, with engine year 2023. This is not evidence of the installation on a 2019 boat."
                }
              ],
              "engineFamilyReference": {
                "family": "N5.230",
                "reportedModel": "N5.230",
                "referenceModel": "N5.230 CR2",
                "referenceId": "review_nanni_n5230cr2_2019",
                "basis": "reviewed-base-engine-family",
                "note": "Representative N5.230 family reference using the exact initial-2019 N5.230 CR2 manufacturer numeric table, 168 kW / 2600 RPM, propeller-load exponent 3. A dealer documents twin CR2 on Seventy 7 and Nanni identifies the Lagoon N5/John Deere family; Manaia's own listing omits CR2. Exact installed suffix, serial number, calibration and applicability to every model year remain unconfirmed. The original 2023 vessel-only / 2019 catalogue caveat is unchanged. No rescaling to the vessel's 230 hp label or cross-edition blending. Both engines are included, not a measured Lagoon fuel test.",
                "sources": [
                  {
                    "title": "Nanni N5 CR2 Operator Manual, initial May 2019, N5.230CR2 exact numeric propeller-load table",
                    "url": "https://nannienergy.com/wp-content/uploads/2023/08/DGBXXT09013_N5.CR2_Small.pdf#page=100",
                    "kind": "manufacturer-document",
                    "locator": "PDF pages 99-100 and 102, exact N5.230CR2 appendix DFRGBT02029",
                    "sha256": "d861aec1454bb902ff3975710e6dc5b6eaf501c206ed94e2aeeafb41061bec4a",
                    "evidence": "168 kW / 2600 RPM, 4.5 L, electronically controlled common rail, 16.7:1; nine explicitly labelled propeller-load-exp.3 L/h fuel rows. Exact source reference, not proof of Manaia's installed suffix or calibration.",
                    "access": "Original manufacturer PDF privately preserved; relevant complete pages visually inspected and numeric cells independently verified on 2026-10-18."
                  },
                  {
                    "title": "Nanni application service manager interview, 23 October 2023",
                    "url": "https://nannienergy.com/nannis-profiles-patrice-hugot-application-service-manager/",
                    "kind": "manufacturer-document",
                    "locator": "Interview, Lagoon engine example",
                    "evidence": "Nanni's application manager identifies the Lagoon installation as an N5 based on John Deere. Family evidence only, not exact suffix or hull identification.",
                    "access": "Manufacturer's original article retrieved and relevant passage inspected on 2026-10-18."
                  },
                  {
                    "title": "Marinec/Seacomm: Lagoon Seventy 7 installation with two Nanni N5.230 CR2",
                    "url": "https://seacomm.ru/solutions/novyy-katamaran-lagoon-seventy-7-s-2-mya-sudovymi-dizelyami-nanni-n5-230-cr2/",
                    "kind": "engine-dealer-installation",
                    "locator": "Original installation article, engine model and technical summary",
                    "evidence": "Dealer explicitly names twin N5.230 CR2 on Seventy 7, 228 hp and 4.5 L. Undated; no identification as Manaia or proof of its calibration.",
                    "access": "Dealer's own original article retrieved and exact engine/boat passage inspected on 2026-10-18."
                  }
                ]
              },
              "selectionPower": {
                "kw": 169.1647125,
                "sources": [
                  "https://www.odysseayachting.com/ownership-preowned-manaia-seventy-7-2023"
                ],
                "basis": "documented-engine-rating",
                "approximate": false,
                "totalKw": 338.329425
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 77\" \"engine model\"",
              "\"Lagoon 77\" \"2019\" engine Nanni Volvo",
              "\"Lagoon 77\" \"2019\" \"engine model\"",
              "\"Lagoon Seventy 7\" \"2019\" \"N5\"",
              "\"Lagoon\" \"77\" \"Nanni\" \"N5.230\"",
              "\"Lagoon Seventy 7\" \"2019\" \"Nanni\" engine",
              "\"Lagoon Seventy 7\" \"2019\" \"N5.230\"",
              "\"Lagoon 77\" \"2019\" \"D4-180\"",
              "\"Lagoon Seventy 7\" \"Tellstar\" engine",
              "\"Lagoon 77\" \"2019\" engine \"N5\"",
              "\"Lagoon 77\" \"2019\" \"Volvo\" \"D4\"",
              "\"Lagoon\" \"Seventy 7\" \"N5.230\" brochure",
              "\"Lagoon Seventy 7\" \"N5.230\" site:nannidiesel.com",
              "\"Lagoon Seventy 7\" \"N5.230\" site:nannienergy.com"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10100280-volvopenta-d4180i-2"
        },
        {
          "name": "Lagoon 380",
          "boatType": "catamaran",
          "yachtModelId": 100220,
          "sourceModelIds": [
            100220,
            100263
          ],
          "sourceModelNames": [
            "Lagoon 380 - 4 + 2 cab.",
            "Lagoon 380 - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-100220-yanmar-3ym30-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2019, 2018, 2017, 2013. Refurbished Lagoon 380 with 2014 replacement engines only; source contains differing 2013 refurbishment / 2014 engine dates. Boat build year not established, so it does not prove any listed 2013/2017/2018/2019 hull. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag380",
                "title": "DBY Boat Sales: Lagoon 380 original vessel brochure",
                "url": "https://www.dbyboatsales.com.au/?bdbrochure=lagoon-380-1&mode=2",
                "kind": "documented-vessel-example",
                "locator": "Engine Details / refurbishment paragraph",
                "evidence": "The original broker explicitly records two Yanmar 3YM30 engines dated 2014 on a refurbished Lagoon 380. This is a replacement-engine vessel example.",
                "note": "Catalogue build years: 2019, 2018, 2017, 2013. Refurbished Lagoon 380 with 2014 replacement engines only; source contains differing 2013 refurbishment / 2014 engine dates. Boat build year not established, so it does not prove any listed 2013/2017/2018/2019 hull. Vessel evidence is not universal factory fit. The original broker explicitly records two Yanmar 3YM30 engines dated 2014 on a refurbished Lagoon 380. This is a replacement-engine vessel example."
              },
              "sources": [
                {
                  "id": "cat-lag380",
                  "title": "DBY Boat Sales: Lagoon 380 original vessel brochure",
                  "url": "https://www.dbyboatsales.com.au/?bdbrochure=lagoon-380-1&mode=2",
                  "kind": "documented-vessel-example",
                  "locator": "Engine Details / refurbishment paragraph",
                  "evidence": "The original broker explicitly records two Yanmar 3YM30 engines dated 2014 on a refurbished Lagoon 380. This is a replacement-engine vessel example.",
                  "note": "Catalogue build years: 2019, 2018, 2017, 2013. Refurbished Lagoon 380 with 2014 replacement engines only; source contains differing 2013 refurbishment / 2014 engine dates. Boat build year not established, so it does not prove any listed 2013/2017/2018/2019 hull. Vessel evidence is not universal factory fit. The original broker explicitly records two Yanmar 3YM30 engines dated 2014 on a refurbished Lagoon 380. This is a replacement-engine vessel example."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 42.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 380\" \"2013\" \"3YM30\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100220-yanmar-3ym30-2"
        },
        {
          "name": "Lagoon 380 S2",
          "boatType": "catamaran",
          "yachtModelId": 100302,
          "sourceModelIds": [
            100302
          ],
          "sourceModelNames": [
            "Lagoon 380 S2 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-100302-yanmar-3ym30-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3YM30",
              "engineDisplayName": "Yanmar 3YM30",
              "engineReferenceId": "yanmar_3ym30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2015, 2007, 2006. Lighthouse Yachting's 2007 S2 example only. Source's per-engine model/power fields used, not inconsistent duplicate totals. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag380s2",
                "title": "Lighthouse Yachting: 2007 Lagoon 380 S2",
                "url": "https://www.lighthouseyachting.com/lagoon-380-s2---2007",
                "kind": "documented-vessel-example",
                "locator": "Engines, Engine 1 and Engine 2",
                "evidence": "The broker identifies two Yanmar 3ym30 engines built in 2007, each 29 hp; redundant total-power labels are inconsistent and not used.",
                "note": "Catalogue build years: 2015, 2007, 2006. Lighthouse Yachting's 2007 S2 example only. Source's per-engine model/power fields used, not inconsistent duplicate totals. Vessel evidence is not universal factory fit. The broker identifies two Yanmar 3ym30 engines built in 2007, each 29 hp; redundant total-power labels are inconsistent and not used."
              },
              "sources": [
                {
                  "id": "cat-lag380s2",
                  "title": "Lighthouse Yachting: 2007 Lagoon 380 S2",
                  "url": "https://www.lighthouseyachting.com/lagoon-380-s2---2007",
                  "kind": "documented-vessel-example",
                  "locator": "Engines, Engine 1 and Engine 2",
                  "evidence": "The broker identifies two Yanmar 3ym30 engines built in 2007, each 29 hp; redundant total-power labels are inconsistent and not used.",
                  "note": "Catalogue build years: 2015, 2007, 2006. Lighthouse Yachting's 2007 S2 example only. Source's per-engine model/power fields used, not inconsistent duplicate totals. Vessel evidence is not universal factory fit. The broker identifies two Yanmar 3ym30 engines built in 2007, each 29 hp; redundant total-power labels are inconsistent and not used."
                }
              ],
              "selectionPower": {
                "kw": 21.3,
                "sources": [
                  "https://www.yanmar.fi/content/download/13983/102776/file/YM_OM_English.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 42.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2007",
              "label": "2007 build",
              "year": 2007,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 380 S2\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-100302-yanmar-3ym30-2"
        },
        {
          "name": "Lagoon 400",
          "boatType": "catamaran",
          "yachtModelId": 115072,
          "sourceModelIds": [
            115072
          ],
          "sourceModelNames": [
            "Lagoon 400 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-115072-yanmar-3jh5ace-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH5ACE",
              "engineDisplayName": "Yanmar 3JH5",
              "engineReferenceId": "review_yanmar_3jh5_family",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2012, 2011. Lighthouse Yachting's 2011 Lagoon 400 only; preserve ACE suffix and do not transfer to 400 S2. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag400",
                "title": "Lighthouse Yachting: 2011 Lagoon 400 owner's version",
                "url": "https://www.lighthouseyachting.com/lagoon-400---2011",
                "kind": "documented-vessel-example",
                "locator": "Engines, Engine 1 and Engine 2",
                "evidence": "Both 2011 engines are explicitly Yanmar 3JH5ACE, 40 hp each.",
                "note": "Catalogue build years: 2012, 2011. Lighthouse Yachting's 2011 Lagoon 400 only; preserve ACE suffix and do not transfer to 400 S2. Vessel evidence is not universal factory fit. Both 2011 engines are explicitly Yanmar 3JH5ACE, 40 hp each."
              },
              "sources": [
                {
                  "id": "cat-lag400",
                  "title": "Lighthouse Yachting: 2011 Lagoon 400 owner's version",
                  "url": "https://www.lighthouseyachting.com/lagoon-400---2011",
                  "kind": "documented-vessel-example",
                  "locator": "Engines, Engine 1 and Engine 2",
                  "evidence": "Both 2011 engines are explicitly Yanmar 3JH5ACE, 40 hp each.",
                  "note": "Catalogue build years: 2012, 2011. Lighthouse Yachting's 2011 Lagoon 400 only; preserve ACE suffix and do not transfer to 400 S2. Vessel evidence is not universal factory fit. Both 2011 engines are explicitly Yanmar 3JH5ACE, 40 hp each."
                }
              ],
              "engineFamilyReference": {
                "family": "3JH5",
                "reportedModel": "3JH5ACE",
                "referenceModel": "3JH5",
                "referenceId": "review_yanmar_3jh5_family",
                "basis": "reviewed-base-engine-family",
                "note": "Base-engine family reference: Yanmar 3JH5, using the digitized 3JH5E manufacturer fuel graph at 28.7 kW / 3000 RPM. The vessel source's 3JH5ACE spelling is retained in the research data. This is a representative base-engine curve, not an exact ACE calibration or a measured Lagoon fuel test. Both engines are included.",
                "sources": [
                  {
                    "title": "YANMAR JH Series Operation Manual, 0AJHM-EN0025, December 2019",
                    "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0AJHM-EN0025_2019.12.pdf",
                    "kind": "manufacturer-document",
                    "locator": "Specifications, printed page 98, 3JH5E / 3JH5AE Engines",
                    "evidence": "Manufacturer groups 3JH5E and 3JH5AE together: crankshaft fuel-stop power 28.7 kW at 3000 RPM; continuous 26.1 kW at 2907 RPM. Engine output must not be confused with shaft output.",
                    "access": "Manufacturer-hosted document; complete specification row retrieved through indexed PDF text on 2026-10-17."
                  },
                  {
                    "title": "YANMAR SD60 Operation Manual, 0ASDM-EN0023, May 2018",
                    "url": "https://www.yanmar.com/marine/wp-content/uploads/2020/05/0ASDM-EN0023_2018.05.pdf",
                    "kind": "manufacturer-document",
                    "locator": "Specifications, printed page 37 / PDF page 41, Applicable engine model rows",
                    "evidence": "3JH5CE and 3JH5AE-C are explicitly listed at 28.7 kW / 3000 RPM, and 4JH57-C at 41.9 kW / 3000 RPM. This supports a family-level rating reference, not proof that every ACE/CE commercial label is a universal manufacturer alias or has identical boat fuel use.",
                    "access": "Manufacturer-hosted PDF and model-specific indexed table retrieved on 2026-10-17."
                  },
                  {
                    "title": "YANMAR Marine International: 3JH5E",
                    "url": "https://www.yanmar.com/marine/product/engines/3jh5e/",
                    "kind": "manufacturer-document",
                    "locator": "Specifications: rated output and rated speed",
                    "evidence": "28.7 kW / 39 metric hp at 3000 RPM for the 3JH5E. No numeric RPM/L/h operating table is stated on the page.",
                    "access": "Current manufacturer product page retrieved on 2026-10-17."
                  }
                ]
              },
              "selectionPower": {
                "kw": 29.41995,
                "sources": [
                  "https://www.lighthouseyachting.com/lagoon-400---2011"
                ],
                "basis": "documented-engine-rating",
                "approximate": false,
                "totalKw": 58.8399
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2012",
              "label": "2012 build",
              "year": 2012,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 400\" \"2011\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-115072-yanmar-3jh5ace-2"
        },
        {
          "name": "Lagoon 400 S2",
          "boatType": "catamaran",
          "yachtModelId": 528724,
          "sourceModelIds": [
            528724,
            2199272
          ],
          "sourceModelNames": [
            "Lagoon 400 S2 - 4 + 1 cab.",
            "Lagoon 400 S2 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-528724-yanmar-3jh5e-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "3JH5E",
              "engineDisplayName": "Yanmar 3JH5E",
              "engineReferenceId": "yanmar_3jh5e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2016, 2015, 2014, 2013. Marine Team's 2015 S2 example in Valencia only; the original listing expressly states 2 x 40 cv. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag400s2",
                "title": "Marine Team: 2015 Lagoon 400 S2 original sale inventory",
                "url": "https://marineteam.es/producto/lagoon-400-s2-ano-2015/",
                "kind": "documented-vessel-example",
                "locator": "Motor / engine make and power",
                "evidence": "The original broker names Yanmar 3JH5E engines with 2 x 40 cv, 6800 hours, in its 2015 S2 listing.",
                "note": "Catalogue build years: 2018, 2016, 2015, 2014, 2013. Marine Team's 2015 S2 example in Valencia only; the original listing expressly states 2 x 40 cv. Vessel evidence is not universal factory fit. The original broker names Yanmar 3JH5E engines with 2 x 40 cv, 6800 hours, in its 2015 S2 listing."
              },
              "sources": [
                {
                  "id": "cat-lag400s2",
                  "title": "Marine Team: 2015 Lagoon 400 S2 original sale inventory",
                  "url": "https://marineteam.es/producto/lagoon-400-s2-ano-2015/",
                  "kind": "documented-vessel-example",
                  "locator": "Motor / engine make and power",
                  "evidence": "The original broker names Yanmar 3JH5E engines with 2 x 40 cv, 6800 hours, in its 2015 S2 listing.",
                  "note": "Catalogue build years: 2018, 2016, 2015, 2014, 2013. Marine Team's 2015 S2 example in Valencia only; the original listing expressly states 2 x 40 cv. Vessel evidence is not universal factory fit. The original broker names Yanmar 3JH5E engines with 2 x 40 cv, 6800 hours, in its 2015 S2 listing."
                }
              ],
              "selectionPower": {
                "kw": 28.7,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_3JH5E.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 57.4
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2013",
              "label": "2013 build",
              "year": 2013,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 400 S2\" \"engine model\"",
              "\"Lagoon 400 S2\" \"4JH45\" broker",
              "\"Lagoon 400 S2\" \"3JH5\" broker",
              "\"Lagoon 400 S2\" \"3JH5E\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-528724-yanmar-3jh5e-2"
        },
        {
          "name": "Lagoon 440",
          "boatType": "catamaran",
          "yachtModelId": 169,
          "sourceModelIds": [
            169,
            515300,
            10172308
          ],
          "sourceModelNames": [
            "Lagoon 440 - 4 + 1 cab.",
            "Lagoon 440 - 4 + 2 cab.",
            "Lagoon 440 - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-169-yanmar-4jh4ce-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-CE",
              "engineDisplayName": "Yanmar 4JH4-CE",
              "engineReferenceId": "review_yanmar_4jh4ce",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2009, 2006. AINULINDALE vessel only; source writes 4JH4-CE SD, with SD treated as drive description. Build year not established from reviewed indexed passage, so 2006/2009 coverage remains unverified. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag440",
                "title": "Just Catamarans: Lagoon 440 AINULINDALE",
                "url": "https://justcatamarans.net/wp-content/uploads/2017/01/AINULINDALE-Brochure.pdf",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Propulsion / Engine Model",
                "evidence": "The original broker brochure explicitly identifies Yanmar 4JH4-CE SD. The SD drive description is not treated as a separate engine model.",
                "note": "Catalogue build years: 2009, 2006. AINULINDALE vessel only; source writes 4JH4-CE SD, with SD treated as drive description. Build year not established from reviewed indexed passage, so 2006/2009 coverage remains unverified. Vessel evidence is not universal factory fit. The original broker brochure explicitly identifies Yanmar 4JH4-CE SD. The SD drive description is not treated as a separate engine model."
              },
              "sources": [
                {
                  "id": "cat-lag440",
                  "title": "Just Catamarans: Lagoon 440 AINULINDALE",
                  "url": "https://justcatamarans.net/wp-content/uploads/2017/01/AINULINDALE-Brochure.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Propulsion / Engine Model",
                  "evidence": "The original broker brochure explicitly identifies Yanmar 4JH4-CE SD. The SD drive description is not treated as a separate engine model.",
                  "note": "Catalogue build years: 2009, 2006. AINULINDALE vessel only; source writes 4JH4-CE SD, with SD treated as drive description. Build year not established from reviewed indexed passage, so 2006/2009 coverage remains unverified. Vessel evidence is not universal factory fit. The original broker brochure explicitly identifies Yanmar 4JH4-CE SD. The SD drive description is not treated as a separate engine model."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.lsm-diesel.dk/2012/yanmar/tekn_data_pdf/sd-50_techdata.pdf",
                  "https://www.manualslib.com/manual/3848325/Yanmar-4jh4ce.html?page=18"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 79.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2009",
              "label": "2009 build",
              "year": 2009,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2006",
              "label": "2006 build",
              "year": 2006,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 440\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-169-yanmar-4jh4ce-2"
        },
        {
          "name": "Lagoon 450",
          "boatType": "catamaran",
          "yachtModelId": 126488,
          "sourceModelIds": [
            126488
          ],
          "sourceModelNames": [
            "Lagoon 450 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-126488-yanmar-4jh5e-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH5E",
              "engineDisplayName": "Yanmar 4JH5E",
              "engineReferenceId": "review_yanmar_4jh5e",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2019, 2018, 2015, 2014. 2014 CHAPTER TWO, engine years 2013, only; no reuse of 450 S specification. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag450",
                "title": "The Catamaran Company: 2014 Lagoon 450 CHAPTER TWO",
                "url": "https://www.boattrader.com/boat/2014-lagoon-450-10048369/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion; seller The Catamaran Company",
                "evidence": "The broker's 2014 Lagoon 450 listing explicitly identifies twin Yanmar 4JH5E engines, with 2013 engine years and 54 hp each.",
                "note": "Catalogue build years: 2019, 2018, 2015, 2014. 2014 CHAPTER TWO, engine years 2013, only; no reuse of 450 S specification. Vessel evidence is not universal factory fit. The broker's 2014 Lagoon 450 listing explicitly identifies twin Yanmar 4JH5E engines, with 2013 engine years and 54 hp each."
              },
              "sources": [
                {
                  "id": "cat-lag450",
                  "title": "The Catamaran Company: 2014 Lagoon 450 CHAPTER TWO",
                  "url": "https://www.boattrader.com/boat/2014-lagoon-450-10048369/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion; seller The Catamaran Company",
                  "evidence": "The broker's 2014 Lagoon 450 listing explicitly identifies twin Yanmar 4JH5E engines, with 2013 engine years and 54 hp each.",
                  "note": "Catalogue build years: 2019, 2018, 2015, 2014. 2014 CHAPTER TWO, engine years 2013, only; no reuse of 450 S specification. Vessel evidence is not universal factory fit. The broker's 2014 Lagoon 450 listing explicitly identifies twin Yanmar 4JH5E engines, with 2013 engine years and 54 hp each."
                }
              ],
              "selectionPower": {
                "kw": 39.6,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/Yanmar-Datasheet_4JH5E.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 79.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 4
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2014",
              "label": "2014 build",
              "year": 2014,
              "exampleYachtCount": 4
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 450\" \"2014\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-126488-yanmar-4jh5e-2"
        },
        {
          "name": "Lagoon 450 F",
          "boatType": "catamaran",
          "yachtModelId": 1312687,
          "sourceModelIds": [
            1312687
          ],
          "sourceModelNames": [
            "Lagoon 450 F - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-1312687-yanmar-4jh57-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH57",
              "engineDisplayName": "Yanmar 4JH57",
              "engineReferenceId": "yanmar_4jh57",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2020, 2019, 2018, 2017, 2016, 2015, 2011. Grassi Bateaux's 2017 flybridge example only; no transfer from Sporttop. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag450f",
                "title": "Grassi Bateaux: 2017 Lagoon 450 F original dealer listing",
                "url": "https://www.grassibateaux.com/lagoon-450-f-3/",
                "kind": "documented-vessel-example",
                "locator": "Description / Motorisation; Moteurs",
                "evidence": "The original selling dealer identifies Yanmar 4JH57 engines on its 2017 Lagoon 450 F, described as first-owner and sold new by that dealership.",
                "note": "Catalogue build years: 2020, 2019, 2018, 2017, 2016, 2015, 2011. Grassi Bateaux's 2017 flybridge example only; no transfer from Sporttop. Vessel evidence is not universal factory fit. The original selling dealer identifies Yanmar 4JH57 engines on its 2017 Lagoon 450 F, described as first-owner and sold new by that dealership."
              },
              "sources": [
                {
                  "id": "cat-lag450f",
                  "title": "Grassi Bateaux: 2017 Lagoon 450 F original dealer listing",
                  "url": "https://www.grassibateaux.com/lagoon-450-f-3/",
                  "kind": "documented-vessel-example",
                  "locator": "Description / Motorisation; Moteurs",
                  "evidence": "The original selling dealer identifies Yanmar 4JH57 engines on its 2017 Lagoon 450 F, described as first-owner and sold new by that dealership.",
                  "note": "Catalogue build years: 2020, 2019, 2018, 2017, 2016, 2015, 2011. Grassi Bateaux's 2017 flybridge example only; no transfer from Sporttop. Vessel evidence is not universal factory fit. The original selling dealer identifies Yanmar 4JH57 engines on its 2017 Lagoon 450 F, described as first-owner and sold new by that dealership."
                }
              ],
              "selectionPower": {
                "kw": 41.9,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 83.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 6
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2016",
              "label": "2016 build",
              "year": 2016,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2011",
              "label": "2011 build",
              "year": 2011,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 450 F\" \"2017\" \"4JH57\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-1312687-yanmar-4jh57-2"
        },
        {
          "name": "Lagoon 450 S",
          "boatType": "catamaran",
          "yachtModelId": 1312688,
          "sourceModelIds": [
            1312688,
            10226219
          ],
          "sourceModelNames": [
            "Lagoon 450 S - 4 + 1 cab.",
            "Lagoon 450 S - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "lagoon-450-sporttop-published",
              "label": "Published twin-engine setup",
              "engineReferenceId": "yanmar_4jh45",
              "engineCount": 2,
              "source": {
                "title": "Lagoon 450 Sporttop published technical specifications",
                "url": "https://www.lagoon-catamaran.de/en/lagoon-models/lagoon-450-sporttop.html",
                "kind": "manufacturer-dealer-model-specification",
                "note": "Published Sporttop model specification lists two Yanmar 4JH45 engines. Other installations must be checked on the boat."
              },
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH45",
              "engineDisplayName": "Yanmar 4JH45",
              "configuration": "published-configuration",
              "applicability": "Published Sporttop model specification lists two Yanmar 4JH45 engines. Other installations must be checked on the boat.",
              "sources": [
                {
                  "id": "cat-lag450s",
                  "title": "Lagoon Katamaran Nord: Lagoon 450 Sporttop technical data",
                  "url": "https://www.lagoon-catamaran.de/en/lagoon-models/lagoon-450-sporttop.html",
                  "kind": "authorized-dealer-specification",
                  "locator": "Technical data / Motorisation",
                  "evidence": "The dealer explicitly publishes two Yanmar 4JH45 engines, 45 hp each, for the Sporttop variant.",
                  "note": "Catalogue build years: 2021, 2020, 2019, 2018, 2017. Dealer technical specification explicitly for Sporttop / S variant; undated generation-level publication, not every individual 2017-2021 hull. Vessel evidence is not universal factory fit. The dealer explicitly publishes two Yanmar 4JH45 engines, 45 hp each, for the Sporttop variant."
                }
              ],
              "curveAvailable": true,
              "selectionPower": {
                "kw": 33.1,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 66.2
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2019",
              "label": "2019 build",
              "year": 2019,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 3
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 2
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 450 S\" \"4JH45\"",
              "\"Lagoon 450 Sporttop\" \"4JH45\" site:lagoon-catamaran.de"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "lagoon-450-sporttop-published"
        },
        {
          "name": "Lagoon 560",
          "boatType": "catamaran",
          "yachtModelId": 941036,
          "sourceModelIds": [
            941036,
            1174945
          ],
          "sourceModelNames": [
            "Lagoon 560",
            "Lagoon 560 - 5 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-941036-yanmar-4jh4hte-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH4-HTE",
              "engineDisplayName": "Yanmar 4JH4-HTE",
              "engineReferenceId": "yanmar_4jh4_hte",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2017, 2015. 2012 plain Lagoon 560 example, engine years 2011, only; outside catalogue years 2015/2017. Later 560 S2 evidence was not silently mapped to this entry. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag560",
                "title": "Broker seller listing: 2012 Lagoon 560, Fernandina Beach",
                "url": "https://www.boats.com/sailing-boats/2012-lagoon-560-9927043/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, port and starboard entries",
                "evidence": "The vessel listing explicitly identifies two Yanmar 4JH4-HTE engines, 110 hp each, with 2011 engine years.",
                "note": "Catalogue build years: 2017, 2015. 2012 plain Lagoon 560 example, engine years 2011, only; outside catalogue years 2015/2017. Later 560 S2 evidence was not silently mapped to this entry. Vessel evidence is not universal factory fit. The vessel listing explicitly identifies two Yanmar 4JH4-HTE engines, 110 hp each, with 2011 engine years."
              },
              "sources": [
                {
                  "id": "cat-lag560",
                  "title": "Broker seller listing: 2012 Lagoon 560, Fernandina Beach",
                  "url": "https://www.boats.com/sailing-boats/2012-lagoon-560-9927043/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, port and starboard entries",
                  "evidence": "The vessel listing explicitly identifies two Yanmar 4JH4-HTE engines, 110 hp each, with 2011 engine years.",
                  "note": "Catalogue build years: 2017, 2015. 2012 plain Lagoon 560 example, engine years 2011, only; outside catalogue years 2015/2017. Later 560 S2 evidence was not silently mapped to this entry. Vessel evidence is not universal factory fit. The vessel listing explicitly identifies two Yanmar 4JH4-HTE engines, 110 hp each, with 2011 engine years."
                }
              ],
              "selectionPower": {
                "kw": 80.9,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2021/02/DS_4JH4-HTE_A4_052022_HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 161.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 560\" \"engine model\"",
              "\"Lagoon 560\" \"2015\" \"4JH4-HTE\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-941036-yanmar-4jh4hte-2"
        },
        {
          "name": "Lagoon 620",
          "boatType": "catamaran",
          "yachtModelId": 7768065,
          "sourceModelIds": [
            7768065,
            9550575
          ],
          "sourceModelNames": [
            "Lagoon 620 - 5 + 2 cab.",
            "Lagoon 620 - 6 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-7768065-volvopenta-d3150-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-150",
              "engineDisplayName": "Volvo Penta D3-150",
              "engineReferenceId": "review_volvopenta_d3150",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2018, 2017. 2017 Grupo Marino Altamar vessel only; no conversion of other D3 family or 110 hp references into this engine model. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag620",
                "title": "Grupo Marino Altamar: 2017 Lagoon 620 seller listing",
                "url": "https://www.boats.com/sailing-boats/2017-lagoon-620-9691067/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion; twin Volvo Penta diesel description",
                "evidence": "The original seller explicitly identifies two Volvo Penta D3-150 engines, 150 hp each, on its 2017 Lagoon 620.",
                "note": "Catalogue build years: 2018, 2017. 2017 Grupo Marino Altamar vessel only; no conversion of other D3 family or 110 hp references into this engine model. Vessel evidence is not universal factory fit. The original seller explicitly identifies two Volvo Penta D3-150 engines, 150 hp each, on its 2017 Lagoon 620."
              },
              "sources": [
                {
                  "id": "cat-lag620",
                  "title": "Grupo Marino Altamar: 2017 Lagoon 620 seller listing",
                  "url": "https://www.boats.com/sailing-boats/2017-lagoon-620-9691067/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion; twin Volvo Penta diesel description",
                  "evidence": "The original seller explicitly identifies two Volvo Penta D3-150 engines, 150 hp each, on its 2017 Lagoon 620.",
                  "note": "Catalogue build years: 2018, 2017. 2017 Grupo Marino Altamar vessel only; no conversion of other D3 family or 110 hp references into this engine model. Vessel evidence is not universal factory fit. The original seller explicitly identifies two Volvo Penta D3-150 engines, 150 hp each, on its 2017 Lagoon 620."
                }
              ],
              "selectionPower": {
                "kw": 110,
                "sources": [
                  "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                  "https://manualzilla.com/doc/6385253/manuel-d-instructions",
                  "https://www.dbmoteurs.fr/sites/default/files/Guide%20de%20l%27utilisateur%20D3.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 220
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2017",
              "label": "2017 build",
              "year": 2017,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon 620\" \"engine model\"",
              "\"Lagoon 620\" \"2017\" \"D3-150\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7768065-volvopenta-d3150-2"
        },
        {
          "name": "Lagoon Sixty 5",
          "boatType": "catamaran",
          "yachtModelId": 12782297,
          "sourceModelIds": [
            12782297
          ],
          "sourceModelNames": [
            "Lagoon Sixty 5"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-12782297-volvopenta-d4175-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D4-175",
              "engineDisplayName": "Volvo Penta D4-175",
              "engineReferenceId": "review_volvopenta_d4175",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2024, 2021. Separately documented 2021 sailing SIXTY 5 only; independent observed alternative. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag65-volvo",
                "title": "Broker seller listing: 2021 Lagoon SIXTY 5",
                "url": "https://www.boattrader.com/boat/2021-lagoon-sixty-5-10143023//",
                "kind": "documented-vessel-example",
                "locator": "Propulsion, Engine 1 and Engine 2",
                "evidence": "The 2021 vessel listing explicitly identifies two Volvo D4-175 engines, 175 hp each.",
                "note": "Catalogue build years: 2024, 2021. Separately documented 2021 sailing SIXTY 5 only; independent observed alternative. Vessel evidence is not universal factory fit. The 2021 vessel listing explicitly identifies two Volvo D4-175 engines, 175 hp each."
              },
              "sources": [
                {
                  "id": "cat-lag65-volvo",
                  "title": "Broker seller listing: 2021 Lagoon SIXTY 5",
                  "url": "https://www.boattrader.com/boat/2021-lagoon-sixty-5-10143023//",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion, Engine 1 and Engine 2",
                  "evidence": "The 2021 vessel listing explicitly identifies two Volvo D4-175 engines, 175 hp each.",
                  "note": "Catalogue build years: 2024, 2021. Separately documented 2021 sailing SIXTY 5 only; independent observed alternative. Vessel evidence is not universal factory fit. The 2021 vessel listing explicitly identifies two Volvo D4-175 engines, 175 hp each."
                }
              ],
              "selectionPower": {
                "kw": 129,
                "sources": [
                  "https://irp.cdn-website.com/dca030c4/files/uploaded/D4-175_230_v1.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 258
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-12782297-yanmar-4lv195-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV195",
              "engineDisplayName": "Yanmar 4LV195",
              "engineReferenceId": "review_yanmar_4lv195",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2024, 2021. 2024 BIG PICTURE sailing SIXTY 5 only. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag65",
                "title": "Broker seller listing: 2024 Lagoon SIXTY 5 BIG PICTURE",
                "url": "https://www.boats.com/sailing-boats/2024-lagoon-sixty-5-9153332/",
                "kind": "documented-vessel-example",
                "locator": "Propulsion; BIG PICTURE description",
                "evidence": "The vessel listing explicitly identifies two Yanmar 4LV195 engines, 195 hp each, on the 2024 sailing SIXTY 5.",
                "note": "Catalogue build years: 2024, 2021. 2024 BIG PICTURE sailing SIXTY 5 only. Vessel evidence is not universal factory fit. The vessel listing explicitly identifies two Yanmar 4LV195 engines, 195 hp each, on the 2024 sailing SIXTY 5."
              },
              "sources": [
                {
                  "id": "cat-lag65",
                  "title": "Broker seller listing: 2024 Lagoon SIXTY 5 BIG PICTURE",
                  "url": "https://www.boats.com/sailing-boats/2024-lagoon-sixty-5-9153332/",
                  "kind": "documented-vessel-example",
                  "locator": "Propulsion; BIG PICTURE description",
                  "evidence": "The vessel listing explicitly identifies two Yanmar 4LV195 engines, 195 hp each, on the 2024 sailing SIXTY 5.",
                  "note": "Catalogue build years: 2024, 2021. 2024 BIG PICTURE sailing SIXTY 5 only. Vessel evidence is not universal factory fit. The vessel listing explicitly identifies two Yanmar 4LV195 engines, 195 hp each, on the 2024 sailing SIXTY 5."
                }
              ],
              "selectionPower": {
                "kw": 143,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1018_HR.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/YANMAR_DS_4LV150170195_A4_2020_0512.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 286
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2021",
              "label": "2021 build",
              "year": 2021,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon Sixty 5\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-12782297-volvopenta-d4175-2"
        },
        {
          "name": "Lagoon Sixty 7",
          "boatType": "catamaran",
          "yachtModelId": 32811604,
          "sourceModelIds": [
            32811604
          ],
          "sourceModelNames": [
            "Lagoon Sixty 7"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-32811604-yanmar-6ly400-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "6LY400",
              "engineDisplayName": "Yanmar 6LY400",
              "engineReferenceId": "review_yanmar_6ly400",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Catalogue build years: 2023. Simpson Marine motor-catamaran inventory 9152998 only. Vessel build year not established from the reviewed indexed passage, so it does not confirm the catalogue's 2023 boat. Not the sailing SIXTY 5. Vessel evidence is not universal factory fit.",
              "source": {
                "id": "cat-lag67",
                "title": "Simpson Marine: Lagoon SIXTY 7, reference 9152998",
                "url": "https://www.simpsonmarine.com/yachts/Lagoon-SIXTY%207-9152998/pdf/",
                "kind": "documented-vessel-example",
                "locator": "PROPULSION, both engine entries",
                "evidence": "The broker's motor-catamaran inventory explicitly lists twin Yanmar 6LY400 engines. It is not evidence for the sailing SIXTY 5.",
                "note": "Catalogue build years: 2023. Simpson Marine motor-catamaran inventory 9152998 only. Vessel build year not established from the reviewed indexed passage, so it does not confirm the catalogue's 2023 boat. Not the sailing SIXTY 5. Vessel evidence is not universal factory fit. The broker's motor-catamaran inventory explicitly lists twin Yanmar 6LY400 engines. It is not evidence for the sailing SIXTY 5."
              },
              "sources": [
                {
                  "id": "cat-lag67",
                  "title": "Simpson Marine: Lagoon SIXTY 7, reference 9152998",
                  "url": "https://www.simpsonmarine.com/yachts/Lagoon-SIXTY%207-9152998/pdf/",
                  "kind": "documented-vessel-example",
                  "locator": "PROPULSION, both engine entries",
                  "evidence": "The broker's motor-catamaran inventory explicitly lists twin Yanmar 6LY400 engines. It is not evidence for the sailing SIXTY 5.",
                  "note": "Catalogue build years: 2023. Simpson Marine motor-catamaran inventory 9152998 only. Vessel build year not established from the reviewed indexed passage, so it does not confirm the catalogue's 2023 boat. Not the sailing SIXTY 5. Vessel evidence is not universal factory fit. The broker's motor-catamaran inventory explicitly lists twin Yanmar 6LY400 engines. It is not evidence for the sailing SIXTY 5."
                }
              ],
              "selectionPower": {
                "kw": 294,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2025/10/6LY400-440_DS_A4_2026_0413-HR.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 588
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Lagoon Sixty 7\" \"engine model\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-32811604-yanmar-6ly400-2"
        }
      ]
    },
    {
      "name": "Nautitech",
      "models": [
        {
          "name": "Nautitech 40",
          "boatType": "catamaran",
          "yachtModelId": 116665,
          "sourceModelIds": [
            116665
          ],
          "sourceModelNames": [
            "Nautitech 40"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-116665-volvopenta-d130-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only 2008 Citron Vert, the older Nautitech 40 design, not the later 40 Open. Matches registry year 2008, but not its individual charter vessel. Source is Port Navy Service's search-indexed original broker listing; full page returned 410. Separate 2008 Yanmar examples do not specify exact engine models.",
              "source": {
                "id": "hanse-mixed-n40-2008",
                "title": "Port Navy Service: 2008 Nautitech 40 Citron Vert",
                "url": "https://www.boat24.com/en/sailingboats/nautitech/nautitech-40/detail/745888/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed vessel details / Engine / Motorleistung; seller Port Navy Service",
                "evidence": "Original broker's platform listing names Citron Vert, build 2008, and Volvo D1-30 with two 30 hp engines. Full page returned 410 during review, so evidence is limited to the indexed passage.",
                "note": "Only 2008 Citron Vert, the older Nautitech 40 design, not the later 40 Open. Matches registry year 2008, but not its individual charter vessel. Source is Port Navy Service's search-indexed original broker listing; full page returned 410. Separate 2008 Yanmar examples do not specify exact engine models. Original broker's platform listing names Citron Vert, build 2008, and Volvo D1-30 with two 30 hp engines. Full page returned 410 during review, so evidence is limited to the indexed passage."
              },
              "sources": [
                {
                  "id": "hanse-mixed-n40-2008",
                  "title": "Port Navy Service: 2008 Nautitech 40 Citron Vert",
                  "url": "https://www.boat24.com/en/sailingboats/nautitech/nautitech-40/detail/745888/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed vessel details / Engine / Motorleistung; seller Port Navy Service",
                  "evidence": "Original broker's platform listing names Citron Vert, build 2008, and Volvo D1-30 with two 30 hp engines. Full page returned 410 during review, so evidence is limited to the indexed passage.",
                  "note": "Only 2008 Citron Vert, the older Nautitech 40 design, not the later 40 Open. Matches registry year 2008, but not its individual charter vessel. Source is Port Navy Service's search-indexed original broker listing; full page returned 410. Separate 2008 Yanmar examples do not specify exact engine models. Original broker's platform listing names Citron Vert, build 2008, and Volvo D1-30 with two 30 hp engines. Full page returned 410 during review, so evidence is limited to the indexed passage."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2008",
              "label": "2008 build",
              "year": 2008,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Nautitech 40\" \"2008\" engines model",
              "\"Nautitech 40\" \"2008\" \"Yanmar\"",
              "\"Nautitech 40\" \"2008\" \"3YM30\"",
              "\"CITRON VERT\" Nautitech \"D1-30\"",
              "\"Nautitech 40\" \"CITRON VERT\" \"Navy\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-116665-volvopenta-d130-2"
        },
        {
          "name": "Nautitech 40 Open",
          "boatType": "catamaran",
          "yachtModelId": 858515,
          "sourceModelIds": [
            858515,
            1298401,
            1328118
          ],
          "sourceModelNames": [
            "Nautitech 40 Open - 4 + 1 cab.",
            "Nautitech 40 Open - 4 + 2 cab.",
            "Nautitech 40 Open - 4 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-858515-volvopenta-d130-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D1-30",
              "engineDisplayName": "Volvo Penta D1-30",
              "engineReferenceId": "volvo_d1_30",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only 2015 Roccamare in Neo Marine's original brochure. Registry covers 2015, 2018, 2022 and 2025. Does not establish other years or the separately retained catalogue label Nautitech 40 open NEW.",
              "source": {
                "id": "hanse-mixed-n40open-2015",
                "title": "Neo Marine: 2015 Nautitech 40 Open Roccamare brochure",
                "url": "https://neomarine.fr/wp-content/uploads/2024/12/Nautitech-Catamarans-40-Open-ROCCAMARE-%E2%80%93-Neomarine-%E2%80%93-Brochure-complete.pdf",
                "kind": "documented-vessel-example",
                "locator": "Page 2 / SPECIFICATIONS",
                "evidence": "Original broker's brochure explicitly gives year 2015, Volvo Penta D1-30 and twin 30 hp engines.",
                "note": "Only 2015 Roccamare in Neo Marine's original brochure. Registry covers 2015, 2018, 2022 and 2025. Does not establish other years or the separately retained catalogue label Nautitech 40 open NEW. Original broker's brochure explicitly gives year 2015, Volvo Penta D1-30 and twin 30 hp engines."
              },
              "sources": [
                {
                  "id": "hanse-mixed-n40open-2015",
                  "title": "Neo Marine: 2015 Nautitech 40 Open Roccamare brochure",
                  "url": "https://neomarine.fr/wp-content/uploads/2024/12/Nautitech-Catamarans-40-Open-ROCCAMARE-%E2%80%93-Neomarine-%E2%80%93-Brochure-complete.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Page 2 / SPECIFICATIONS",
                  "evidence": "Original broker's brochure explicitly gives year 2015, Volvo Penta D1-30 and twin 30 hp engines.",
                  "note": "Only 2015 Roccamare in Neo Marine's original brochure. Registry covers 2015, 2018, 2022 and 2025. Does not establish other years or the separately retained catalogue label Nautitech 40 open NEW. Original broker's brochure explicitly gives year 2015, Volvo Penta D1-30 and twin 30 hp engines."
                }
              ],
              "selectionPower": {
                "kw": 20.9,
                "sources": [
                  "https://shop.toadmarinesupply.com/utility/includes/content/volvo/sales_lit/D1-30.pdf",
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d1-inboard/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 41.8
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2018",
              "label": "2018 build",
              "year": 2018,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2015",
              "label": "2015 build",
              "year": 2015,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Nautitech 40 Open\" engine model Volvo",
              "\"Nautitech 40 Open\" \"D1-30\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-858515-volvopenta-d130-2"
        },
        {
          "name": "Nautitech 46 Open",
          "boatType": "catamaran",
          "yachtModelId": 37490460,
          "sourceModelIds": [
            37490460
          ],
          "sourceModelNames": [
            "Nautitech 46 Open - 3 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-37490460-volvopenta-d250-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D2-50",
              "engineDisplayName": "Volvo Penta D2-50",
              "engineReferenceId": "volvo_d2_50",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only Neo Marine's 2023 Nautitech 46 Open. Registry covers 2022 only, so that boat's fit remains unconfirmed. This is explicitly the Open design, not a Fly or other similarly sized catamaran.",
              "source": {
                "id": "hanse-mixed-n46open-2023",
                "title": "Neo Marine: 2023 Nautitech 46 Open",
                "url": "https://neomarine.fr/en/bateau/2023-nautitech-46-open-id52-en/",
                "kind": "documented-vessel-example",
                "locator": "Engine information",
                "evidence": "Original broker explicitly identifies two Volvo Penta D2-50 diesel saildrive engines, engine year 2023.",
                "note": "Only Neo Marine's 2023 Nautitech 46 Open. Registry covers 2022 only, so that boat's fit remains unconfirmed. This is explicitly the Open design, not a Fly or other similarly sized catamaran. Original broker explicitly identifies two Volvo Penta D2-50 diesel saildrive engines, engine year 2023."
              },
              "sources": [
                {
                  "id": "hanse-mixed-n46open-2023",
                  "title": "Neo Marine: 2023 Nautitech 46 Open",
                  "url": "https://neomarine.fr/en/bateau/2023-nautitech-46-open-id52-en/",
                  "kind": "documented-vessel-example",
                  "locator": "Engine information",
                  "evidence": "Original broker explicitly identifies two Volvo Penta D2-50 diesel saildrive engines, engine year 2023.",
                  "note": "Only Neo Marine's 2023 Nautitech 46 Open. Registry covers 2022 only, so that boat's fit remains unconfirmed. This is explicitly the Open design, not a Fly or other similarly sized catamaran. Original broker explicitly identifies two Volvo Penta D2-50 diesel saildrive engines, engine year 2023."
                }
              ],
              "selectionPower": {
                "kw": 37.5,
                "sources": [
                  "https://www.volvopenta.com/en-gb/marine/all-marine-engines/d2-saildrive/",
                  "https://svtrouble.com/documents/Volvo%20Penta%20D2%2050%20F%20manual.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 75
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Nautitech 46 Open\" engine model Volvo",
              "\"Nautitech 46 Open\" \"D2-50\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-37490460-volvopenta-d250-2"
        }
      ]
    },
    {
      "name": "Sunreef",
      "models": [
        {
          "name": "Sunreef 50",
          "boatType": "catamaran",
          "yachtModelId": 8327719,
          "sourceModelIds": [
            8327719
          ],
          "sourceModelNames": [
            "Sunreef 50"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-8327719-yanmar-4jh80-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4JH80",
              "engineDisplayName": "Yanmar 4JH80",
              "engineReferenceId": "yanmar_4jh80",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only Med Cat Yachts' 2019 Sunreef 50 listing, available as a search-indexed original broker passage while full page shows maintenance. Registry covers 2020 and 2023, neither established by this 2019 vessel. Operator source hanse-mixed-s50-conflict for 2020 Solitaire contains malformed code 4JH4110 and conflicting power units, not accepted as another exact setup.",
              "source": {
                "id": "hanse-mixed-s50-2019",
                "title": "Med Cat Yachts: 2019 Sunreef 50 vessel listing",
                "url": "https://yachtway.com/vessels/sunreef-yachts-50-3/",
                "kind": "documented-vessel-example",
                "locator": "Search-indexed Specifications / Engine; listing attributed to Med Cat Yachts, Sitges",
                "evidence": "Original broker-attributed listing explicitly identifies twin Yanmar 4JH80, each 80 hp, on a 2019 Sunreef 50. Full page showed maintenance during review.",
                "note": "Only Med Cat Yachts' 2019 Sunreef 50 listing, available as a search-indexed original broker passage while full page shows maintenance. Registry covers 2020 and 2023, neither established by this 2019 vessel. Operator source hanse-mixed-s50-conflict for 2020 Solitaire contains malformed code 4JH4110 and conflicting power units, not accepted as another exact setup. Original broker-attributed listing explicitly identifies twin Yanmar 4JH80, each 80 hp, on a 2019 Sunreef 50. Full page showed maintenance during review."
              },
              "sources": [
                {
                  "id": "hanse-mixed-s50-2019",
                  "title": "Med Cat Yachts: 2019 Sunreef 50 vessel listing",
                  "url": "https://yachtway.com/vessels/sunreef-yachts-50-3/",
                  "kind": "documented-vessel-example",
                  "locator": "Search-indexed Specifications / Engine; listing attributed to Med Cat Yachts, Sitges",
                  "evidence": "Original broker-attributed listing explicitly identifies twin Yanmar 4JH80, each 80 hp, on a 2019 Sunreef 50. Full page showed maintenance during review.",
                  "note": "Only Med Cat Yachts' 2019 Sunreef 50 listing, available as a search-indexed original broker passage while full page shows maintenance. Registry covers 2020 and 2023, neither established by this 2019 vessel. Operator source hanse-mixed-s50-conflict for 2020 Solitaire contains malformed code 4JH4110 and conflicting power units, not accepted as another exact setup. Original broker-attributed listing explicitly identifies twin Yanmar 4JH80, each 80 hp, on a 2019 Sunreef 50. Full page showed maintenance during review."
                }
              ],
              "selectionPower": {
                "kw": 58.8,
                "sources": [
                  "https://www.yanmar.com/marine/products/engines/jh-cr-series/"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 117.6
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 2
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sunreef 50\" engine model",
              "\"Sunreef 50\" Yanmar Volvo engine",
              "Sunreef 50 Yanmar engine 4JH80 2020",
              "\"Sunreef 50\" \"4JH80\" \"Med Cat\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-8327719-yanmar-4jh80-2"
        },
        {
          "name": "Sunreef 60",
          "boatType": "catamaran",
          "yachtModelId": 7817754,
          "sourceModelIds": [
            7817754,
            10931196
          ],
          "sourceModelNames": [
            "Sunreef 60",
            "Sunreef 60 - 4 + 2 cab."
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-7817754-volvopenta-d3150ih-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D3-150I-H",
              "engineDisplayName": "Volvo Penta D3-150",
              "engineReferenceId": "review_volvopenta_d3150i",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only Ledenko's 2023 sailing Sunreef 60. Registry years are 2020, 2022, 2025 and 2026; 2023 is outside its sampled coverage. Exact I-H suffix retained.",
              "source": {
                "id": "hanse-mixed-s60-2023",
                "title": "Ledenko: 2023 Sunreef 60 vessel specification",
                "url": "https://ledenko.ngncms.si/en/sail-boats/sunreef-60?f=print_page&type=pdf",
                "kind": "documented-vessel-example",
                "locator": "GENERAL INFORMATION / PROPULSION",
                "evidence": "Original broker's vessel PDF explicitly names twin Volvo Penta D3-150I-H diesels, each 150 hp, on its 2023 sailing Sunreef 60.",
                "note": "Only Ledenko's 2023 sailing Sunreef 60. Registry years are 2020, 2022, 2025 and 2026; 2023 is outside its sampled coverage. Exact I-H suffix retained. Original broker's vessel PDF explicitly names twin Volvo Penta D3-150I-H diesels, each 150 hp, on its 2023 sailing Sunreef 60."
              },
              "sources": [
                {
                  "id": "hanse-mixed-s60-2023",
                  "title": "Ledenko: 2023 Sunreef 60 vessel specification",
                  "url": "https://ledenko.ngncms.si/en/sail-boats/sunreef-60?f=print_page&type=pdf",
                  "kind": "documented-vessel-example",
                  "locator": "GENERAL INFORMATION / PROPULSION",
                  "evidence": "Original broker's vessel PDF explicitly names twin Volvo Penta D3-150I-H diesels, each 150 hp, on its 2023 sailing Sunreef 60.",
                  "note": "Only Ledenko's 2023 sailing Sunreef 60. Registry years are 2020, 2022, 2025 and 2026; 2023 is outside its sampled coverage. Exact I-H suffix retained. Original broker's vessel PDF explicitly names twin Volvo Penta D3-150I-H diesels, each 150 hp, on its 2023 sailing Sunreef 60."
                }
              ],
              "engineFamilyReference": {
                "family": "D3-150",
                "reportedModel": "D3-150I-H",
                "referenceModel": "D3-150i",
                "referenceId": "review_volvopenta_d3150i",
                "basis": "reviewed-base-engine-family",
                "note": "Representative base-engine family reference: Volvo Penta D3-150 I, using the unchanged manufacturer 110 kW / 3000 RPM fuel graph, calculated propeller-load exponent 2.5. SRA explicitly includes D3-150I-H in this family. The vessel's H suffix remains in the research data; exact H calibration, serial-number applicability and equivalence to operator editions printing 111 kW are not established. No power-rescaling or averaging is used. The original 2023 vessel-only applicability remains unchanged. Both engines are included. Not measured Sunreef fuel use.",
                "sources": [
                  {
                    "title": "SRA Moteur: Volvo Penta D3-150 propulsion catalogue and hardware specification numbers",
                    "url": "https://sra-moteur.com/fr/catalogue/1-moteurs/10-marine-commerciale/12-nouvelle-gamme/15-propulsion/247-d3-150",
                    "kind": "engine-dealer-catalogue",
                    "locator": "Technical table and Modeles / numeros de specifications",
                    "evidence": "The dealer's D3-150 product record lists D3-150I-H specification number 40869574 alongside D/E/F/G variants, with base crankshaft rating 110 kW at 3000 RPM. This establishes an explicit family link, not identical H-suffix fuel calibration.",
                    "access": "Dealer's own product page retrieved and full model/specification listing inspected on 2026-10-18."
                  },
                  {
                    "title": "Volvo Penta Inboard Diesel D3-110,150, English 12-2016, publication 47708878",
                    "url": "https://www.frenchmarine.com/Datasheets/47708878_EN.pdf",
                    "kind": "manufacturer-document",
                    "locator": "PDF page 1, D3-150 I technical data and Fuel consumption at calculated propeller load exp. 2.5",
                    "evidence": "Manufacturer base-engine graph is already digitized at its printed 110 kW / 3000 RPM rating. It is reused unchanged as a representative reference only; no exact H-suffix fuel calibration or individual Sunreef installation measurement is asserted.",
                    "sha256": "84b1c253e70b6e0301f6c6f07dff2af5d0467f7ea7307eaf5e02e53b5effdfad",
                    "access": "Original manufacturer PDF privately preserved, complete relevant pages inspected and graph digitized in the existing source archive; graph data unchanged by this family binding."
                  }
                ]
              },
              "selectionPower": {
                "kw": 110.3248125,
                "sources": [
                  "https://ledenko.ngncms.si/en/sail-boats/sunreef-60?f=print_page&type=pdf"
                ],
                "basis": "documented-engine-rating",
                "approximate": false,
                "totalKw": 220.649625
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-7817754-yanmar-4lv170-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Yanmar",
              "engineModel": "4LV170",
              "engineDisplayName": "Yanmar 4LV170",
              "engineReferenceId": "review_yanmar_4lv170",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only SSL Yachts' 2024 sailing Sunreef 60. Registry years 2020, 2022, 2025 and 2026 do not include this example; no universal changeover or Power-model fit asserted.",
              "source": {
                "id": "hanse-mixed-s60-2024",
                "title": "SSL Yachts: 2024 Sunreef 60",
                "url": "https://sslyachts.com/sunreef-60-6a9c0ad765e69",
                "kind": "documented-vessel-example",
                "locator": "Construction / Engine and Performance",
                "evidence": "Original broker identifies model year 2024 and two Yanmar 4LV170 engines.",
                "note": "Only SSL Yachts' 2024 sailing Sunreef 60. Registry years 2020, 2022, 2025 and 2026 do not include this example; no universal changeover or Power-model fit asserted. Original broker identifies model year 2024 and two Yanmar 4LV170 engines."
              },
              "sources": [
                {
                  "id": "hanse-mixed-s60-2024",
                  "title": "SSL Yachts: 2024 Sunreef 60",
                  "url": "https://sslyachts.com/sunreef-60-6a9c0ad765e69",
                  "kind": "documented-vessel-example",
                  "locator": "Construction / Engine and Performance",
                  "evidence": "Original broker identifies model year 2024 and two Yanmar 4LV170 engines.",
                  "note": "Only SSL Yachts' 2024 sailing Sunreef 60. Registry years 2020, 2022, 2025 and 2026 do not include this example; no universal changeover or Power-model fit asserted. Original broker identifies model year 2024 and two Yanmar 4LV170 engines."
                }
              ],
              "selectionPower": {
                "kw": 125,
                "sources": [
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/03/DS_4LV150-170-195_A4_2021_1018_HR.pdf",
                  "https://www.yanmar.com/marine/wp-content/uploads/2020/05/YANMAR_DS_4LV150170195_A4_2020_0512.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 250
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            },
            {
              "id": "research-7817754-volvopenta-d4175-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "Volvo Penta",
              "engineModel": "D4-175",
              "engineDisplayName": "Volvo Penta D4-175",
              "engineReferenceId": "review_volvopenta_d4175",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only 2020 Vulpino, a sailing Sunreef 60, not Sunreef 60 Power. Registry covers 2020, 2022, 2025 and 2026. Operator's drive-type field is questionable, but model and count are explicit; not generalized to other years.",
              "source": {
                "id": "hanse-mixed-s60-2020",
                "title": "Ocean Sailing House: 2020 Sunreef 60 Vulpino",
                "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-60/",
                "kind": "documented-vessel-example",
                "locator": "Main Information / Propulsion",
                "evidence": "Operator explicitly names two Volvo Penta D4-175 engines and 129 kW each on 2020 Vulpino. Its drive-type field says saildrive and should be independently checked.",
                "note": "Only 2020 Vulpino, a sailing Sunreef 60, not Sunreef 60 Power. Registry covers 2020, 2022, 2025 and 2026. Operator's drive-type field is questionable, but model and count are explicit; not generalized to other years. Operator explicitly names two Volvo Penta D4-175 engines and 129 kW each on 2020 Vulpino. Its drive-type field says saildrive and should be independently checked."
              },
              "sources": [
                {
                  "id": "hanse-mixed-s60-2020",
                  "title": "Ocean Sailing House: 2020 Sunreef 60 Vulpino",
                  "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-60/",
                  "kind": "documented-vessel-example",
                  "locator": "Main Information / Propulsion",
                  "evidence": "Operator explicitly names two Volvo Penta D4-175 engines and 129 kW each on 2020 Vulpino. Its drive-type field says saildrive and should be independently checked.",
                  "note": "Only 2020 Vulpino, a sailing Sunreef 60, not Sunreef 60 Power. Registry covers 2020, 2022, 2025 and 2026. Operator's drive-type field is questionable, but model and count are explicit; not generalized to other years. Operator explicitly names two Volvo Penta D4-175 engines and 129 kW each on 2020 Vulpino. Its drive-type field says saildrive and should be independently checked."
                }
              ],
              "selectionPower": {
                "kw": 129,
                "sources": [
                  "https://irp.cdn-website.com/dca030c4/files/uploaded/D4-175_230_v1.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 258
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2026",
              "label": "2026 build",
              "year": 2026,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2025",
              "label": "2025 build",
              "year": 2025,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2022",
              "label": "2022 build",
              "year": 2022,
              "exampleYachtCount": 1
            },
            {
              "id": "year-2020",
              "label": "2020 build",
              "year": 2020,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sunreef 60\" engine model"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-7817754-volvopenta-d3150ih-2"
        },
        {
          "name": "Sunreef 70",
          "boatType": "catamaran",
          "yachtModelId": 10271101,
          "sourceModelIds": [
            10271101
          ],
          "sourceModelNames": [
            "Sunreef 70"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-10271101-johndeere-powertech6068tfm50-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "John Deere",
              "engineModel": "PowerTech 6068TFM50",
              "engineDisplayName": "John Deere PowerTech 6068TFM50",
              "engineReferenceId": "review_johndeere_powertech6068tfm50",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only the 2024 sailing Sunreef 70 n+1, matching the registry's 2024 coverage. Operator explicitly labels Deere units as direct-drive propulsion; the supplied broker-sheet SPECS excerpt separately lists two 20.5 kVA generators, excluded from this setup. Published duty rating is M4. Operator calls n+1 ECO, but that label is not evidence of all-electric propulsion. Do not apply this diesel setup to the distinct electric Sunreef 70 Eco One Planet (hanse-mixed-s70-one-planet-electric), whose exact electric motor code remains unpublished in the reviewed manufacturer page, or to Sunreef 70 Power. See broker-source retrieval limitation.",
              "source": {
                "id": "hanse-mixed-s70-2024",
                "title": "Ocean Sailing House: 2024 Sunreef 70 n+1",
                "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-70-n1/",
                "kind": "documented-vessel-example",
                "locator": "Main Information / Propulsion / Drive type / Electrical systems / Generators",
                "evidence": "Operator labels its 2024 n+1 Sunreef 70 ECO with twin John Deere PowerTech 6068TFM50, M4, 225 hp / 168 kW each under Propulsion, explicitly gives Direct drive, and lists generators separately under electrical systems. ECO wording alone does not establish electric propulsion.",
                "note": "Only the 2024 sailing Sunreef 70 n+1, matching the registry's 2024 coverage. Operator explicitly labels Deere units as direct-drive propulsion; the supplied broker-sheet SPECS excerpt separately lists two 20.5 kVA generators, excluded from this setup. Published duty rating is M4. Operator calls n+1 ECO, but that label is not evidence of all-electric propulsion. Do not apply this diesel setup to the distinct electric Sunreef 70 Eco One Planet (hanse-mixed-s70-one-planet-electric), whose exact electric motor code remains unpublished in the reviewed manufacturer page, or to Sunreef 70 Power. See broker-source retrieval limitation. Operator labels its 2024 n+1 Sunreef 70 ECO with twin John Deere PowerTech 6068TFM50, M4, 225 hp / 168 kW each under Propulsion, explicitly gives Direct drive, and lists generators separately under electrical systems. ECO wording alone does not establish electric propulsion."
              },
              "sources": [
                {
                  "id": "hanse-mixed-s70-2024",
                  "title": "Ocean Sailing House: 2024 Sunreef 70 n+1",
                  "url": "https://www.oceansailinghouse.com/charter-fleet/sunreef-70-n1/",
                  "kind": "documented-vessel-example",
                  "locator": "Main Information / Propulsion / Drive type / Electrical systems / Generators",
                  "evidence": "Operator labels its 2024 n+1 Sunreef 70 ECO with twin John Deere PowerTech 6068TFM50, M4, 225 hp / 168 kW each under Propulsion, explicitly gives Direct drive, and lists generators separately under electrical systems. ECO wording alone does not establish electric propulsion.",
                  "note": "Only the 2024 sailing Sunreef 70 n+1, matching the registry's 2024 coverage. Operator explicitly labels Deere units as direct-drive propulsion; the supplied broker-sheet SPECS excerpt separately lists two 20.5 kVA generators, excluded from this setup. Published duty rating is M4. Operator calls n+1 ECO, but that label is not evidence of all-electric propulsion. Do not apply this diesel setup to the distinct electric Sunreef 70 Eco One Planet (hanse-mixed-s70-one-planet-electric), whose exact electric motor code remains unpublished in the reviewed manufacturer page, or to Sunreef 70 Power. See broker-source retrieval limitation. Operator labels its 2024 n+1 Sunreef 70 ECO with twin John Deere PowerTech 6068TFM50, M4, 225 hp / 168 kW each under Propulsion, explicitly gives Direct drive, and lists generators separately under electrical systems. ECO wording alone does not establish electric propulsion."
                },
                {
                  "id": "hanse-mixed-s70-n1-broker-2025",
                  "title": "Ocean Sailing House: n+1 operator broker sheet, 2025",
                  "url": "https://www.booking-manager.com/wbm2/bmdoc/9398151357903078_NplusONE-_BROKERS_2025.pdf",
                  "kind": "documented-vessel-example",
                  "locator": "Reviewer-supplied SPECS excerpt: PROPULSION and COMFORT / Power generators; retrieved PDF body confirms n+1, 2024",
                  "evidence": "The supplied operator-sheet excerpt labels John Deere PowerTech 6068TFM50, M4, 225 hp under PROPULSION, separately from two 20.5 kVA power generators. The retrieved 11-page copy lacks that specifications panel; the operator's current webpage independently labels the Deere units as direct-drive propulsion and lists generators separately.",
                  "note": "Only the 2024 sailing Sunreef 70 n+1, matching the registry's 2024 coverage. Operator explicitly labels Deere units as direct-drive propulsion; the supplied broker-sheet SPECS excerpt separately lists two 20.5 kVA generators, excluded from this setup. Published duty rating is M4. Operator calls n+1 ECO, but that label is not evidence of all-electric propulsion. Do not apply this diesel setup to the distinct electric Sunreef 70 Eco One Planet (hanse-mixed-s70-one-planet-electric), whose exact electric motor code remains unpublished in the reviewed manufacturer page, or to Sunreef 70 Power. See broker-source retrieval limitation. The supplied operator-sheet excerpt labels John Deere PowerTech 6068TFM50, M4, 225 hp under PROPULSION, separately from two 20.5 kVA power generators. The retrieved 11-page copy lacks that specifications panel; the operator's current webpage independently labels the Deere units as direct-drive propulsion and lists generators separately."
                },
                {
                  "id": "hanse-mixed-s70-one-planet-electric",
                  "title": "Sunreef Yachts: Sunreef 70 Eco One Planet",
                  "url": "https://sunreef-yachts.com/en/launched/sunreef-70-eco-one-planet/",
                  "kind": "manufacturer-specification",
                  "locator": "DESCRIPTION / SPECIFICATION / Main engines / Generator",
                  "evidence": "Manufacturer explicitly describes One Planet as an electric catamaran, with main electric-engine power and separate generator power fields. This is a different individual yacht from n+1; the page does not supply an exact electric motor model code.",
                  "note": "Only the 2024 sailing Sunreef 70 n+1, matching the registry's 2024 coverage. Operator explicitly labels Deere units as direct-drive propulsion; the supplied broker-sheet SPECS excerpt separately lists two 20.5 kVA generators, excluded from this setup. Published duty rating is M4. Operator calls n+1 ECO, but that label is not evidence of all-electric propulsion. Do not apply this diesel setup to the distinct electric Sunreef 70 Eco One Planet (hanse-mixed-s70-one-planet-electric), whose exact electric motor code remains unpublished in the reviewed manufacturer page, or to Sunreef 70 Power. See broker-source retrieval limitation. Manufacturer explicitly describes One Planet as an electric catamaran, with main electric-engine power and separate generator power fields. This is a different individual yacht from n+1; the page does not supply an exact electric motor model code."
                }
              ],
              "selectionPower": {
                "kw": 168,
                "sources": [
                  "https://aksaeurope.com/Content/Front/images/marin/168kW-2600rpm.pdf#page=2",
                  "https://www.deere.ca/assets/pdfs/common/industries/engines-and-drivetrain/specsheets/6068tfm50_c.pdf",
                  "https://www.deere.ca/en/marine-engines/propulsion/powertech-6-8l-6068tfm50/",
                  "https://www.deere.com/assets/pdfs/common/industries/engines-and-drivetrain/brochures/marine-engines-brochure-dswc20.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 336
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            }
          ],
          "variants": [
            {
              "id": "year-2024",
              "label": "2024 build",
              "year": 2024,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sunreef 70\" \"2024\" engine",
              "\"Sunreef 70\" \"2024\" \"engines\" -power -60 -80",
              "Sunreef 70 n+1 PowerTech 6068TFM50 Ocean Sailing House",
              "\"NplusONE-_BROKERS_2025\" \"PROPULSION\"",
              "\"Sunreef\" \"One Planet\" electric propulsion manufacturer",
              "\"9398151357903078_NplusONE-_BROKERS_2025.pdf\" \"PowerTech\"",
              "\"n+1\" \"6068TFM50\" \"generators\""
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-10271101-johndeere-powertech6068tfm50-2"
        },
        {
          "name": "Sunreef 70 Power",
          "boatType": "catamaran",
          "yachtModelId": 833078,
          "sourceModelIds": [
            833078
          ],
          "sourceModelNames": [
            "Sunreef 70 Power"
          ],
          "defaultEngineCount": 2,
          "engineSetups": [
            {
              "id": "research-833078-man-i6730-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "MAN",
              "engineModel": "i6 730",
              "engineDisplayName": "MAN i6 730",
              "engineReferenceId": "review_man_i6730",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only Perfomax Marine's private 2023 Sunreef 70 Power. Source calls the engines MAN i6 730 HP; retain that commercial designation without inventing a longer engine-plate code. Not an alternate rating for Amber One's i6-850.",
              "source": {
                "id": "hanse-mixed-s70power-730",
                "title": "Perfomax Marine: 2023 Sunreef 70 Power",
                "url": "https://perfomaxmarine.com/yacht-for-sale/2023-sunreef-70-power",
                "kind": "documented-vessel-example",
                "locator": "DESCRIPTION / MECHANICAL",
                "evidence": "Original selling broker explicitly describes twin MAN i6 730 HP engines on its private 2023 Sunreef 70 Power; this differs from Amber One's 850 rating.",
                "note": "Only Perfomax Marine's private 2023 Sunreef 70 Power. Source calls the engines MAN i6 730 HP; retain that commercial designation without inventing a longer engine-plate code. Not an alternate rating for Amber One's i6-850. Original selling broker explicitly describes twin MAN i6 730 HP engines on its private 2023 Sunreef 70 Power; this differs from Amber One's 850 rating."
              },
              "sources": [
                {
                  "id": "hanse-mixed-s70power-730",
                  "title": "Perfomax Marine: 2023 Sunreef 70 Power",
                  "url": "https://perfomaxmarine.com/yacht-for-sale/2023-sunreef-70-power",
                  "kind": "documented-vessel-example",
                  "locator": "DESCRIPTION / MECHANICAL",
                  "evidence": "Original selling broker explicitly describes twin MAN i6 730 HP engines on its private 2023 Sunreef 70 Power; this differs from Amber One's 850 rating.",
                  "note": "Only Perfomax Marine's private 2023 Sunreef 70 Power. Source calls the engines MAN i6 730 HP; retain that commercial designation without inventing a longer engine-plate code. Not an alternate rating for Amber One's i6-850. Original selling broker explicitly describes twin MAN i6 730 HP engines on its private 2023 Sunreef 70 Power; this differs from Amber One's 850 rating."
                }
              ],
              "selectionPower": {
                "kw": 537,
                "sources": [
                  "https://www.man.eu/content/dam/man/man-engines/doc/produkte/marine-1/Marine-Pleasure-EN.pdf/_jcr_content/renditions/original./Marine-Pleasure-EN.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 1074
              },
              "selectionRole": "standard",
              "selectionLabel": "Standard"
            },
            {
              "id": "research-833078-man-i6850-2",
              "label": "Documented vessel configuration",
              "configuration": "documented-vessel",
              "engineManufacturer": "MAN",
              "engineModel": "i6-850",
              "engineDisplayName": "MAN i6-850",
              "engineReferenceId": "review_man_i6850",
              "curveAvailable": true,
              "curveBlockedReason": null,
              "engineCount": 2,
              "applicability": "Only 2023 Amber One / Amber, matching registry year 2023. Explicit powercat, not the sailing Sunreef 70 or older different-generation 70-foot design.",
              "source": {
                "id": "hanse-mixed-s70power-2023",
                "title": "Ocean Sailing House: 2023 Sunreef 70 Power Amber One",
                "url": "https://www.oceansailinghouse.com/charter-fleet/70-sunreef-power/",
                "kind": "documented-vessel-example",
                "locator": "Main Information / Propulsion",
                "evidence": "Operator specifies production year 2023 and twin MAN i6-850 engines, 850 hp / 625 kW each, on Amber One.",
                "note": "Only 2023 Amber One / Amber, matching registry year 2023. Explicit powercat, not the sailing Sunreef 70 or older different-generation 70-foot design. Operator specifies production year 2023 and twin MAN i6-850 engines, 850 hp / 625 kW each, on Amber One."
              },
              "sources": [
                {
                  "id": "hanse-mixed-s70power-2023",
                  "title": "Ocean Sailing House: 2023 Sunreef 70 Power Amber One",
                  "url": "https://www.oceansailinghouse.com/charter-fleet/70-sunreef-power/",
                  "kind": "documented-vessel-example",
                  "locator": "Main Information / Propulsion",
                  "evidence": "Operator specifies production year 2023 and twin MAN i6-850 engines, 850 hp / 625 kW each, on Amber One.",
                  "note": "Only 2023 Amber One / Amber, matching registry year 2023. Explicit powercat, not the sailing Sunreef 70 or older different-generation 70-foot design. Operator specifies production year 2023 and twin MAN i6-850 engines, 850 hp / 625 kW each, on Amber One."
                }
              ],
              "selectionPower": {
                "kw": 625,
                "sources": [
                  "https://www.man.eu/content/dam/man/man-engines/doc/produkte/marine-1/Marine-Pleasure-EN.pdf/_jcr_content/renditions/original./Marine-Pleasure-EN.pdf"
                ],
                "basis": "manufacturer-rating",
                "approximate": false,
                "totalKw": 1250
              },
              "selectionRole": "upgraded",
              "selectionLabel": "Upgraded"
            }
          ],
          "variants": [
            {
              "id": "year-2023",
              "label": "2023 build",
              "year": 2023,
              "exampleYachtCount": 1
            }
          ],
          "engineResearch": {
            "status": "identified",
            "queries": [
              "\"Sunreef 70 Power\" \"2023\" engines"
            ],
            "sources": [],
            "candidateSetups": [],
            "note": "Engine identities are documented configurations, not identification of an individual boat."
          },
          "defaultEngineSetupId": "research-833078-man-i6730-2"
        }
      ]
    }
  ]
}
