ADH Inotec
Diam 24 One-Design

Diam 24 is 24 feet One-design trimaran. She was developed on the specifications of the shipyard ADH Inotec : to provide a fun, high-performance sailboat while remaining relatively accessible. The yard found the help they needed, indeed if the Diam 24 One Design displays a family resemblance to the MOD 70 is that she was designed by the same architects team, moreover, specialists of fast multihulls: VPLP.

Well built, she comes complete with sails and motor (electric), and is designed to be easily trailerable : she is very compact when disassembled arms and amas. But the main interest of the formula lies in performance, nearly 2 times the speed of a racing keelboat of the same dimensions. If overconfidence an airbag in the mast is provided to right the boat.

Diam 24 One Design has been chosen to be the official boat of the Tour de France a la Voile, from 2015.

See the Diam 24 One-Design's specifications on

Main Features

ShipyardADH Inotec
ModelDiam 24 One-Design
Sailboat typeOne-design
Trailerable trimaran
ClassTour de France à la Voile
DesignerVincent Lauriot Prévost
Marc Van Peteghem
Building years (first/last)2013 / Still in production
CE regulationC-4 / D-4
ConstructionSandwich PVC/fiberglass/polyester (composite infusion), with carbon fiber reinforcement
Appendage typeDaggerboard (main hull)
Rudder bladeTwo on amas
RudderDouble tillers
Main dimensions
Hull length23.8 ft
Waterline length23.8 ft
Beam over all18.4 ft
Draft (max./min.)4.9 / 0.7 ft
Mast height40.0 ft
Light displacement992 lbs

Rig and sails

Rig typeFractional Sloop with rotating mast
Rig materialMast in Carbon fiber and boom in Aluminum
Number of rows of spreader1
Spreader anglePushing (diamond)
Spinnaker typeGennaker on bow
Upwind sailarea344 ft²
Downwind sailarea581 ft²
Mainsail area237 ft²
Jib area108 ft²
Spinnaker area344 ft²

PMainsail hoist measurement (from tack to head)

35.4 ft

EMainsail foot measurement (from tack to clew)

9.5 ft

LLGenoa hoist measurement (from tack to head)

25.9 ft


Upwind sailarea / displacement765.4 ft²/Ton
Downwind sailarea / displacement1291.7 ft²/Ton

Based on specification2014

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