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Sun Fast 31 Deep draft is a Cruiser-racer sailboat built by Jeanneau and designed by Andrieu Yacht Design. Her first hull was built in 1990 with an overall lengh of 9.3 m or 30.6 ft long and a Deck stepped mast mast configuration.

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JEANNEAU SUN FAST 31 DEEP DRAFT Sailboat Specifications​


Overall Length (LOA) m / ft9.3 m / 30.6 ft
Designer(s)Andrieu Yacht Design
SeriesSun Fast
VersionDeep draft
categoryCruiser-racer sailboat
Hull TypeMonohull
Number of Hulls Built130
First Hull Built1990
Last Hull Built1993
AppendagesKeel L-shaped keel (with bulb)
HelmSingle tiller
RudderSingle spade rudder
CockpitClosed aft cockpit
Ballast TypeCast iron
Rigging TypeSloop Marconi 7/8
Mast LayoutDeck stepped mast
Number of Cabin(s)2
Number of Head(s)1
Freshwater Tank Capacity lt/gal100 L / 26.4 gal
Ballast Ratio0.38


Overall Length (LOA) 9.3 m / 30.6 ft
Hull Length9.15 m / 30 ft
Waterline Length (LWL)7.7 m / 25.4 ft
Beam (width)3.23 m / 10.7 ft
Waterline Beam Width2.56 m / 8.5 ft
Maximum Transverse Section1.03 m² / 11 ft²
Draft1.75 m / 5.8 ft
Wetted Area19.43 m² / 209 ft²
Fore Freeboard1.17 m / 3.10 ft
Mid-Ship Freeboard10.3 / 33.10 ft
Light Displacement (MLC) 3100 kg / 6834 lb
Ballast Weight1180 kg / 2601 lb


Critical Hull Speed6.74 knots
Displacement-Length Ratio (DLR)192
Ballast Ratio0.38
Upwind Sail Area to Displacement23.85 m²/T / 257 ft²/T
Downwind Sail Area to Displacement38.76 m²/T / 417 ft²/T

Above Deck

Mast LayoutDeck stepped mast
Rotating SparsNo
Number of Levels of Spreaders2
Spreaders AngleSwept-back
Spars ConstructionAluminum spars
Standing Rigging1x19 strand wire discontinuous
Upwind Sail Area50.7 m² / 546 ft²
Downwind Sail Area82.4 m² / 887 ft²
Mainsail Area23.7 m² / 255 ft²
Genoa Area27 m² / 291 ft²
I36.1 ft * 11 m
J10.6 ft * 3.2 m
P36.8 ft * 11.2 m
E12.1 ft * 3.7 m

Engine Room

Engine(s)1 inboard engine
Engine(s) Power18 HP
Fuel typeDiesel
Fuel Tank Capacity48 L / 12.7 gal

Below Deck

Fridge Capacity75 L / 19.8 gal
Maximum Headroom6.1 ft * 1.87 m
Head Headroom5.10 ft * 1.78 m
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