{
 "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": "deep-v-hull",
 "name": "Deep-V hull",
 "kind": "standard",
 "category": "Boat design",
 "group": "Hull types",
 "year": null,
 "question": "What is a deep-V hull and how much deadrise does it have?",
 "tags": [
  "vehicle design",
  "hull types",
  "rc design",
  "aerodynamics"
 ],
 "aliases": [
  "deep v hull",
  "deep vee",
  "deadrise angle",
  "deep v boat",
  "rc deep vee",
  "mono hull rc boat",
  "v hull deadrise",
  "24 degree deadrise",
  "deep v vs modified v",
  "rough water hull",
  "offshore hull"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/deep-v-hull/",
 "sheet_txt": "https://xemstudio.com/objects/deep-v-hull/sheet.txt",
 "sheet": {
  "basis": "Design rules and figures from the cited sources; example geometry by Xem Studio",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Deadrise is the angle between the bottom and horizontal on each side of the keel. Deep-V hulls run about 21-25 deg at the transom, which slices through chop for a smoother, drier ride (BoatTest).",
   "The cost is efficiency and stability: deep-Vs are harder to push, need more power, are more trim-sensitive and can roll at rest (BoatTest).",
   "In RC, deep-V monos are preferred for heat racing in rough water; one builder's notes put deep-V at about 21-26 deg and recommend 19-23 deg for heat racing (SV Design).",
   "Used on: Pro Boat Stealthwake (RC, 20 deg transom).",
   "The file is a reference example built by Xem Studio from the numbers above (Reference RC mono: 585 mm length and 20 deg transom deadrise (SV Design Stealthwake data); 181 mm is an unlabelled width in the same source's deadrise diagram.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle."
  ],
  "table": {
   "columns": [
    "parameter",
    "value or range",
    "source"
   ],
   "rows": [
    [
     "Deep-V transom deadrise",
     "21-25 deg (25 rare)",
     "BoatTest"
    ],
    [
     "Variable deadrise",
     "up to 60 deg forefoot, 30-45 deg amidships",
     "BoatTest"
    ],
    [
     "RC deep-V range",
     "about 21-26 deg",
     "SV Design (Stealthwake)"
    ],
    [
     "RC heat-racing sweet spot",
     "19-23 deg",
     "SV Design (Stealthwake)"
    ],
    [
     "RC mono CG",
     "25-35% of length from transom, ~30% target",
     "SV Design (Stealthwake)"
    ],
    [
     "RC mono CG (racer)",
     "about 28-30% with half tank",
     "Model Gas Boats forum"
    ]
   ]
  }
 },
 "sheet_text": "Deep-V hull — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/deep-v-hull/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)\nBasis: Design rules and figures from the cited sources; example geometry by Xem Studio\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Deadrise is the angle between the bottom and horizontal on each side of the keel. Deep-V hulls run about 21-25 deg at the transom, which slices through chop for a smoother, drier ride (BoatTest).\n- The cost is efficiency and stability: deep-Vs are harder to push, need more power, are more trim-sensitive and can roll at rest (BoatTest).\n- In RC, deep-V monos are preferred for heat racing in rough water; one builder's notes put deep-V at about 21-26 deg and recommend 19-23 deg for heat racing (SV Design).\n- Used on: Pro Boat Stealthwake (RC, 20 deg transom).\n- The file is a reference example built by Xem Studio from the numbers above (Reference RC mono: 585 mm length and 20 deg transom deadrise (SV Design Stealthwake data); 181 mm is an unlabelled width in the same source's deadrise diagram.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.\n\nparameter  value or range  source\nDeep-V transom deadrise  21-25 deg (25 rare)  BoatTest\nVariable deadrise  up to 60 deg forefoot, 30-45 deg amidships  BoatTest\nRC deep-V range  about 21-26 deg  SV Design (Stealthwake)\nRC heat-racing sweet spot  19-23 deg  SV Design (Stealthwake)\nRC mono CG  25-35% of length from transom, ~30% target  SV Design (Stealthwake)\nRC mono CG (racer)  about 28-30% with half tank  Model Gas Boats forum\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- BoatTest: To Deep-V or Not to Deep-V — web — Publisher's page; dimensions are facts — https://boattest.com/view-news/6472_To-Deep-V-or-Not-to-Deep-V\n- SV Design: Pro Boat Stealthwake upgrades info (Feb 2022) — web — Publisher's page; dimensions are facts — https://myplace.frontier.com/~sv_design/Pro%20Boat%20Stealthwakes%20Upgrades%20Info%20SVC_Feb-2022.pdf\n- Model Gas Boats forum: Need help setting up a mono for the first time — web — Publisher's page; dimensions are facts — https://www.modelgasboats.com/forum/13-ask-the-editors-discuss-articles-general-boat-questions/21138-need-help-setting-up-a-mono-for-the-first-time\n\nFree files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/deep-v-hull/index.json\nAPI: https://xemstudio.com/api/geometry?object=deep-v-hull\n",
 "sources": [
  {
   "publisher": "BoatTest",
   "title": "To Deep-V or Not to Deep-V",
   "url": "https://boattest.com/view-news/6472_To-Deep-V-or-Not-to-Deep-V",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "SV Design",
   "title": "Pro Boat Stealthwake upgrades info (Feb 2022)",
   "url": "https://myplace.frontier.com/~sv_design/Pro%20Boat%20Stealthwakes%20Upgrades%20Info%20SVC_Feb-2022.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Model Gas Boats forum",
   "title": "Need help setting up a mono for the first time",
   "url": "https://www.modelgasboats.com/forum/13-ask-the-editors-discuss-articles-general-boat-questions/21138-need-help-setting-up-a-mono-for-the-first-time",
   "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": [
  "modified-v-hull",
  "flat-bottom-hull",
  "cathedral-tri-hull",
  "tunnel-hull-catamaran",
  "three-point-hydroplane",
  "stepped-hull"
 ],
 "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": "Why does a deep-V use more power?",
   "a": "More deadrise means less lift per wetted area, so it is harder to push (BoatTest)."
  }
 ],
 "files_license": {
  "name": "Xem Studio Design License",
  "holder": "Xem Studio",
  "url": "https://xemstudio.com/license/",
  "note": "Xem Studio's own design: free to use, print, modify and sell things made from it; not to be republished or redistributed as files."
 },
 "offers": [
  {
   "file": "deep-v-hull-hull",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "Xem Studio Design License",
   "step": "https://xemstudio.com/files/hardware/deep-v-hull/deep-v-hull-hull.step",
   "stl": "https://xemstudio.com/files/hardware/deep-v-hull/deep-v-hull-hull.stl",
   "note": "deep v hull, 585 × 181 mm, deadrise 22° (sections illustrative, scale to your boat)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/deep-v-hull/index.md"
}