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Bénéteau 31 Deep draft is a Cruising sailboat built by Bénéteau and designed by Finot Conq Architectes. Her first hull was built in 2007 with an overall lengh of 9.66 m or 31.8 ft long and a Deck stepped mast mast configuration.

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BENETEAU 31 DEEP DRAFT Sailboat Specifications​


Overall Length (LOA) m / ft9.66 m / 31.8 ft
Designer(s)Finot Conq Architectes
VersionDeep draft
categoryCruising sailboat
Hull TypeMonohull
First Hull Built2007
Last Hull Built2019
AppendagesKeel fin with bulb
HelmSingle helm wheel
RudderSingle spade rudder
CockpitClosed aft cockpit
Ballast TypeCast iron
Rigging TypeSloop Marconi fractional
Mast LayoutDeck stepped mast
Number of Cabin(s)2
Number of Head(s)1
Freshwater Tank Capacity lt/gal130 L / 34.3 gal
Ballast Ratio0.2


Overall Length (LOA) 9.66 m / 31.8 ft
Hull Length9.3 m / 30.6 ft
Waterline Length (LWL)8.89 m / 29.2 ft
Beam (width)3.39 m / 11.1 ft
Draft1.8 m / 5.11 ft
Light Displacement (MLC) 4850 kg / 10692 lb
Ballast Weight994 kg / 2191 lb


Critical Hull Speed7.24 knots
Displacement-Length Ratio (DLR)195
Ballast Ratio0.2
Upwind Sail Area to Displacement17.17 m²/T / 185 ft²/T
Downwind Sail Area to Displacement41.74 m²/T / 449 ft²/T

Above Deck

Mast LayoutDeck stepped mast
Mast Height from DWL14.2 m / 46.7 ft
Rotating SparsNo
Number of Levels of Spreaders1
Spreaders AngleSwept-back
Spars ConstructionAluminum spars
Standing Rigging1x19 strand wire continuous
Upwind Sail Area49.2 m² / 530 ft²
Downwind Sail Area119.6 m² / 1287 ft²
Mainsail Area24.6 m² / 265 ft²
Genoa Area24.6 m² / 265 ft²
I38.8 ft * 11.8 m
J12 ft * 3.67 m
P35.10 ft * 10.9 m
E12.10 ft * 3.9 m

Engine Room

Engine(s)1 inboard engine
Engine(s) Power21 HP
Fuel typeDiesel
Fuel Tank Capacity130 L / 34.3 gal

Below Deck

Fridge Capacity100 L / 26.4 gal
Maximum Headroom6.1 ft * 1.85 m
Head Headroom6 ft * 1.84 m
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