UFO 31

UFO 31 drawing

Sailboat Specifications


Hull Type:
Fin w/spade rudder
Rigging Type:
Masthead Sloop
LOA:
30.87 ft / 9.41 m
LWL:
25.63 ft / 7.81 m
S.A. (reported):
403.00 ft2 / 37.44 m2
Beam:
10.04 ft / 3.06 m
Draft (max):
5.50 ft / 1.68 m
Draft (min):
Displacement:
6,800 lb / 3,084 kg
Ballast:
3,395 lb / 1,540 kg
S.A./Disp.:
18.02
Bal./Disp.:
49.93
Disp./Len.:
180.31
Construction:
FG
Ballast Type:
Iron
First Built:
1976
Last Built:
1981
# Built:
Builder:
Colvic Craft (UK)
Designer:
Holman & Pye
Website:

Auxiliary Power/Water (orig. equip.)

Make:
Volvo Penta
Model:
Type:
Diesel
HP:
20

Sailboat Calculations

S.A./Disp.:
18.02
Bal./Disp.:
49.93
Disp./Len.:
180.31
Comfort Ratio:
17.89

Rig and Sail Particulars

I:
38.50 ft / 11.73 m
J:
12.40 ft / 3.78 m
P:
34.50 ft / 10.52 m
E:
9.50 ft / 2.90 m
SPL/TPS:
ISP:
S.A. Fore:
238.70 ft2 / 22.18 m2
S.A. Main:
163.88 ft2 / 15.22 m2
S.A. Total (100% Fore + Main Triangles)
402.58 ft2 / 37.40 m2
S.A./Disp. (calc.):
18.00
Est. Forestay Len.:
40.45 ft / 12.33 m

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