Masthead Sloop · Fin With Rudder On Skeg · First built 1987
A 12.5-meter masthead sloop with a 1.65-meter draft that served as the predecessor to the Sun Odyssey 42
Designed by Guy Ribadeau Dumas.
LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Fin With Rudder On Skeg
Is it for you?
Character
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
LivelyComfort 25Sea-kindly
CoastalCapsize 2.04Bluewater
LightD/L 217Heavy
EasygoingSA/D 18.6Powered-up
TenderBallast 41%Stiff
Powered-up and quick to accelerate — this one likes to sail.
Draws less than ~81% of boats her size on file
Beamier than ~79% of boats her size on file
Compared with 2723 boats of the same type within a quarter of her length.
The record
Full specifications
The complete reference set — tap any figure to switch between metric and imperial.
Dimensions
Weights
Ballast / displacement
41.1%
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
18.6
Displacement / length
216.6
Comfort ratio
24.8
Capsize screening
2.04
Hull speed
7.7 kn
Pounds / inch immersion
1587
Hull
Hull type
Fin with rudder on skeg
Construction
Fiberglass
Production
Years built
First built 1987
Designer
Guy Ribadeau Dumas
Builder
Jeanneau
Boats like this, on the water
Nobody has filmed this one — but these are close.
Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.
Feeling 41612.57 mSame hull familyNear-identical lengthA 12.57-metre masthead sloop with a 1.93m fin keel, designed for offshore stability with a 23.7 comfort ratio
Jeanneau Sun Legende 4112.44 mSame hull familyNear-identical lengthA Doug Peterson-designed 1-ton prototype offering a performance-oriented hull available in Regate and cruising variants
Beneteau First 40512.40 mSame hull familyNear-identical lengthA 12.4-metre masthead sloop featuring a deep 2.19-metre fin keel and a balanced displacement for offshore performance
Moody 41912.73 mSame hull family0.2 m longerA Bill Dixon-designed masthead sloop with a skeg-hung rudder, built for offshore stability and available as a centerboarder
Dufour Yachts 4012.32 mSame hull family0.2 m shorterA 12.32-metre fractional sloop featuring a 1.65-metre draft and a balanced 36% ballast ratio for coastal cruising
Linjett 4012.35 mSame hull family0.2 m shorterA decade-long production run defines this 12-metre performance cruiser, balancing a 44% ballast ratio for stiff sailing