Library › Boat design › Hull types ·
Deep-V hull
What is a deep-V hull and how much deadrise does it have? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Also called: 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
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 6 in table
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.
Deep-V hull size chart
| parameter | value or range | source |
|---|---|---|
| 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 |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| BoatTest | To Deep-V or Not to Deep-V | web | Publisher's page; dimensions are facts |
| SV Design | Pro Boat Stealthwake upgrades info (Feb 2022) | web | Publisher's page; dimensions are facts |
| Model Gas Boats forum | Need help setting up a mono for the first time | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json
| deep-v-hull-hull | deep v hull, 585 × 181 mm, deadrise 22° (sections illustrative, scale to your boat) | STEP · STL |
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=deep-v-hull

Fits with
Questions
Why does a deep-V use more power?
More deadrise means less lift per wetted area, so it is harder to push (BoatTest).





