{ "version": "2026-10-20", "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.", "slug": "ec12-east-coast-12-metre-class-rules", "name": "EC12 East Coast 12-Metre model yacht (AMYA 2014 class specifications)", "kind": "modern", "category": "RC boats", "group": "Sailboats (class rules)", "year": null, "question": "What are the EC12 class dimensions?", "tags": [ "rc boat", "radio control boat", "model boat", "hobby rc", "sailboats (class rules)" ], "aliases": [ "ec12 class rules", "ec12 dimensions", "east coast 12 meter rc yacht", "ec12 waterline length", "ec12 draft", "ec12 mast height", "ec12 beam", "12 metre model yacht size", "ec 12 velero rc medidas", "ec12 maße" ], "overall_mm": { "length": 1092, "width": 283, "height": 1829 }, "official_cad": false, "xem_status": "free-files", "les": false, "free_files": 1, "url": "https://xemstudio.com/objects/ec12-east-coast-12-metre-class-rules/", "sheet_txt": "https://xemstudio.com/objects/ec12-east-coast-12-metre-class-rules/sheet.txt", "sheet": { "basis": "Manufacturer specifications (AMYA)", "overall_mm": { "length": 1092, "width": 283, "height": 1829 }, "notes": [ "The EC12 is a moulded one-design model of a 12 Metre America's Cup yacht. Numbers are the AMYA 2014 class specifications.", "The beam-station table lets the deck plan be rebuilt; overall hull length is fixed by the mould and only given as 'approx. 58 in' by AMYA.", "True size, no printing tolerance added. Only published numbers are used; anything not published is said so." ], "table": { "columns": [ "dimension", "value" ], "rows": [ [ "Waterline length", "42–43 in (1067–1092 mm)" ], [ "Draft", "7.875 in (200 mm) max" ], [ "Max beam (35 in station)", "11.14 in (283 mm)" ], [ "Beam stations 5…55 in", "2.48, 4.57, 6.46, 8.15, 9.65, 10.75, 11.14, 10.75, 9.61, 7.72, 5.24 in (±0.25 in)" ], [ "Keel width", "2.1 in (53.34 mm); 2.15 in (54.61 mm) after lead" ], [ "Hull minimum weight", "2.2 lb (1 kg) incl. deck flange" ], [ "Rudder", "5 in (125 mm) high × 3.5 in (90 mm) wide max" ], [ "Mast height", "72 in (1829 mm) max above deck incl. crane" ], [ "Forestay height", "59 in (1500 mm) max above deck" ], [ "Overall length", "set by class mould (AMYA lists approx. 58 in)" ] ] } }, "sheet_text": "EC12 East Coast 12-Metre model yacht (AMYA 2014 class specifications) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/ec12-east-coast-12-metre-class-rules/ (sheet CC BY 4.0)\nBasis: Manufacturer specifications (AMYA)\nCatalog version: 2026-10-20\n\nOverall (mm): length 1092, width 283, height 1829\n- The EC12 is a moulded one-design model of a 12 Metre America's Cup yacht. Numbers are the AMYA 2014 class specifications.\n- The beam-station table lets the deck plan be rebuilt; overall hull length is fixed by the mould and only given as 'approx. 58 in' by AMYA.\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n\ndimension value\nWaterline length 42–43 in (1067–1092 mm)\nDraft 7.875 in (200 mm) max\nMax beam (35 in station) 11.14 in (283 mm)\nBeam stations 5…55 in 2.48, 4.57, 6.46, 8.15, 9.65, 10.75, 11.14, 10.75, 9.61, 7.72, 5.24 in (±0.25 in)\nKeel width 2.1 in (53.34 mm); 2.15 in (54.61 mm) after lead\nHull minimum weight 2.2 lb (1 kg) incl. deck flange\nRudder 5 in (125 mm) high × 3.5 in (90 mm) wide max\nMast height 72 in (1829 mm) max above deck incl. crane\nForestay height 59 in (1500 mm) max above deck\nOverall length set by class mould (AMYA lists approx. 58 in)\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- AMYA: Class Specifications for the East Coast 12-Meter Model Yacht (2014) — web — Publisher's page; dimensions are facts — https://www.ussailing.org/wp-content/uploads/2020/11/EC12-Class-Rules-Oct2014.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/ec12-east-coast-12-metre-class-rules/index.json\nAPI: https://xemstudio.com/api/geometry?object=ec12-east-coast-12-metre-class-rules\n", "sources": [ { "publisher": "AMYA", "title": "Class Specifications for the East Coast 12-Meter Model Yacht (2014)", "url": "https://www.ussailing.org/wp-content/uploads/2020/11/EC12-Class-Rules-Oct2014.pdf", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false } ], "xem": { "status": "free-files", "sheet_free": true, "mesh_price_usd": null, "step_price_usd": null, "tolerance_mm": null }, "related": [ "star-45-class-rules" ], "fits": [], "dimensions": "exact (nominal, no printing tolerance)", "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.", "mating": [], "faq": [ { "q": "What is the EC12 maximum draft?", "a": "7.875 in (200 mm)." }, { "q": "How tall is the EC12 mast?", "a": "Up to 72 in (1829 mm) above deck." } ], "files_license": null, "offers": [ { "file": "ec12-east-coast-12-metre-class-rules-rule-envelope", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/ec12-east-coast-12-metre-class-rules/ec12-east-coast-12-metre-class-rules-rule-envelope.step", "stl": "https://xemstudio.com/files/hardware/ec12-east-coast-12-metre-class-rules/ec12-east-coast-12-metre-class-rules-rule-envelope.stl", "note": "Class-rule envelope 1092 × 283 × 1829 mm (length × maximum beam × mast height above deck); hull shape not modelled" } ], "markdown": "https://xemstudio.com/objects/ec12-east-coast-12-metre-class-rules/index.md" }