{ "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": "star-45-class-rules", "name": "Star 45 radio sailing class (AMYA class rules 2019)", "kind": "modern", "category": "RC boats", "group": "Sailboats (class rules)", "year": null, "question": "What are the Star 45 RC sailboat class dimensions?", "tags": [ "rc boat", "radio control boat", "model boat", "hobby rc", "sailboats (class rules)" ], "aliases": [ "star 45 class rules", "star 45 rc sailboat dimensions", "star 45 length", "star 45 beam", "star 45 mast height", "star 45 minimum weight", "star 45 sail dimensions", "amya star 45", "velero rc star 45 medidas", "star 45 maße" ], "overall_mm": { "length": 1143, "width": 304.8, "height": 1778 }, "official_cad": false, "xem_status": "free-files", "les": false, "free_files": 1, "url": "https://xemstudio.com/objects/star-45-class-rules/", "sheet_txt": "https://xemstudio.com/objects/star-45-class-rules/sheet.txt", "sheet": { "basis": "Manufacturer specifications (AMYA Star 45 Class)", "overall_mm": { "length": 1143, "width": 304.8, "height": 1778 }, "notes": [ "The Star 45 is an AMYA scale-like one-design based on the Olympic Star keelboat. Numbers are AMYA Star 45 Class Rules Rev 1.2 (Oct 2019).", "The geometry is an envelope from the maxima; hull lines come from the class mould and are not modelled.", "True size, no printing tolerance added. Only published numbers are used; anything not published is said so." ], "table": { "columns": [ "dimension", "value" ], "rows": [ [ "Hull length", "45 in ±½ in (1143 ± 12.7 mm) (1.2)" ], [ "Beam", "11–12 in (279.4–304.8 mm) at widest deck point (1.2)" ], [ "Mast height", "70 in (1778 mm) max above deck incl. crane (3.2)" ], [ "Jib stay attachment", "54 in (1371.6 mm) max above deck (2.8)" ], [ "Mast section", "¾ in (19.05 mm) square max" ], [ "Keel + bulb drop", "11½ in (292.1 mm) max (7.5)" ], [ "Hull weight (bare)", "16 oz (454 g) min (1.4)" ], [ "Rigged weight", "12 lb (5.44 kg) min (1.10)" ], [ "A main luff / foot / leech", "62.75 / 25.5 / 65.5 in max" ], [ "B main luff / foot / leech", "55 / 25.5 / 59 in max" ], [ "Jib luff / foot / leech", "42.5 / 15.75 / 37 in max" ] ] } }, "sheet_text": "Star 45 radio sailing class (AMYA class rules 2019) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/star-45-class-rules/ (sheet CC BY 4.0)\nBasis: Manufacturer specifications (AMYA Star 45 Class)\nCatalog version: 2026-10-20\n\nOverall (mm): length 1143, width 304.8, height 1778\n- The Star 45 is an AMYA scale-like one-design based on the Olympic Star keelboat. Numbers are AMYA Star 45 Class Rules Rev 1.2 (Oct 2019).\n- The geometry is an envelope from the maxima; hull lines come from the class mould and are not modelled.\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n\ndimension value\nHull length 45 in ±½ in (1143 ± 12.7 mm) (1.2)\nBeam 11–12 in (279.4–304.8 mm) at widest deck point (1.2)\nMast height 70 in (1778 mm) max above deck incl. crane (3.2)\nJib stay attachment 54 in (1371.6 mm) max above deck (2.8)\nMast section ¾ in (19.05 mm) square max\nKeel + bulb drop 11½ in (292.1 mm) max (7.5)\nHull weight (bare) 16 oz (454 g) min (1.4)\nRigged weight 12 lb (5.44 kg) min (1.10)\nA main luff / foot / leech 62.75 / 25.5 / 65.5 in max\nB main luff / foot / leech 55 / 25.5 / 59 in max\nJib luff / foot / leech 42.5 / 15.75 / 37 in max\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- AMYA Star 45 Class: Star 45 Class Rules Rev 2019 — web — Publisher's page; dimensions are facts — https://www.ussailing.org/wp-content/uploads/2020/12/Star-45-Class-Rules-Rev2019.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/star-45-class-rules/index.json\nAPI: https://xemstudio.com/api/geometry?object=star-45-class-rules\n", "sources": [ { "publisher": "AMYA Star 45 Class", "title": "Star 45 Class Rules Rev 2019", "url": "https://www.ussailing.org/wp-content/uploads/2020/12/Star-45-Class-Rules-Rev2019.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": [ "ec12-east-coast-12-metre-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": "How heavy must a Star 45 be?", "a": "At least 12 lb (5.44 kg) rigged." }, { "q": "How tall is the Star 45 mast?", "a": "No more than 70 in (1778 mm) above the deck." } ], "files_license": null, "offers": [ { "file": "star-45-class-rules-rule-envelope", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/star-45-class-rules/star-45-class-rules-rule-envelope.step", "stl": "https://xemstudio.com/files/hardware/star-45-class-rules/star-45-class-rules-rule-envelope.stl", "note": "Class-rule envelope 1143 × 304.8 × 1778 mm (length × maximum beam × mast height above deck); hull shape not modelled" } ], "markdown": "https://xemstudio.com/objects/star-45-class-rules/index.md" }