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Planing monohull

What is a planing hull? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: planing hull, planing boat, on plane, planing vs displacement, getting on plane, planing speed, rc planing hull, semi planing

Exact dimensions. True size, with no printing tolerance added.

sizes
2 in table

Notes

  • A planing hull rises onto the surface at speed so dynamic lift replaces most buoyancy, letting it exceed displacement hull speed (Good Old Boat; Wikipedia, Hydroplane).
  • Planing lift comes from the bottom pushing water down; flat pads at the chine add lift to get on plane sooner (Boat Blurb).
  • 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.

Planing monohull size chart

parametervalue or rangesource
Displacement limit exceeded bydynamic liftGood Old Boat
Chine flatabout 1-2 in padBoat Blurb

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Good Old BoatDisplacement hull speed 101webPublisher's page; dimensions are facts
WikipediaHydroplane (boat)webPublisher's page; dimensions are facts
Boat BlurbWhere is a chine on a boat and what does it do?webPublisher'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

planing-hull-hullplaning monohull hull, 585 × 181 mm, deadrise 20° (sections illustrative, scale to your boat)STEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=planing-hull

Planing monohull, isometric render of a generated part
Render of planing-hull-hull from the free STEP; not to scale.

Fits with

Questions

Can sailboats plane?

Most large monohull sailboats are displacement hulls and do not (Good Old Boat).