Forgus 31

1973 — 1983
Designer
Lars Hedberg
Builder
Forgus Yachts (SWE)
Associations
?
# Built
?
Hull Type
Fin w/spade rudder
Construction
FG

Dimensions

Length Overall
30 6 / 9.3 m
Waterline Length
24 3 / 7.4 m
Beam
10 5 / 3.2 m
Draft
5 4 / 1.6 m
Displacement
9,700 lbs / 4,400 kg
Ballast
4,410 lbs / 2,000 kg (Lead)

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
438 ft2 / 40.7 m2
Total Sail Area
438 ft2 / 40.7 m2
Mainsail
Sail Area
182.2 ft2 / 16.9 m2
P
35 7 / 10.9 m
E
10 2 / 3.1 m
Mast Height
?
Foresail
Sail Area
255.8 ft2 / 23.8 m2
I
41 0 / 12.5 m
J
12 5 / 3.8 m
Forestay Length
42 10 / 13.1 m

Auxilary Power

Make
Volvo
Model
MD11C
HP
?
Fuel Type
Diesel
Fuel Capacity
15 gal / 57 l

Accomodations

Water Capacity
33 gal / 125 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
6.6 knots
Sail Area/Displacement
15.41
under powered
Ballast/Displacement
45.45
stiffer, more powerful
Displacement/Length
302.54
heavy
Comfort Ratio
24.84
coastal cruiser
Capsize Screening
1.97
better suited for ocean passages

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