Jeanneau Sun Fast 31

1991 — 1994
Designer
Daniel Andrieu
Builder
Jeanneau
Association
Sun Fast (Jeanneau)
# Built
?
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
30 6 / 9.3 m
Waterline Length
25 3 / 7.7 m
Beam
10 7 / 3.2 m
Draft
5 8 / 1.8 m
Displacement
6,830 lbs / 3,100 kg
Ballast
2,650 lbs / 1,202 kg (Lead or Iron)
drawing

Rig and Sails

Type
Fractional Sloop
Reported Sail Area
414.9 ft2 / 38.6 m2
Total Sail Area
415.4 ft2 / 38.6 m2
Mainsail
Sail Area
223 ft2 / 20.7 m2
P
36 8 / 11.2 m
E
12 1 / 3.7 m
Mast Height
?
Foresail
Sail Area
192.4 ft2 / 17.9 m2
I
36 1 / 11 m
J
10 7 / 3.3 m
Forestay Length
37 7 / 11.5 m

Auxilary Power

Make
Yanmar
Model
2GM20
HP
18
Fuel Type
Diesel
Fuel Capacity
12 gal / 45 l

Accomodations

Water Capacity
24 gal / 91 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.73 knots
Sail Area/Displacement
18.44
good performance
Ballast/Displacement
38.78
less stiff, less powerful
Displacement/Length
189.29
light
Comfort Ratio
16.84
lightweight racing boat
Capsize Screening
2.23
better suited for coastal cruising

Notes

Shallow draft: 1.45m/4.76’ (Deep lead keel available as an opt.)
Based on SUN ODYSSEY 31, SUN LIGHT 30.


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