SPENCER 31

SPENCER 31 photo SPENCER 31 drawing

Sailboat Specifications


Hull Type:
Fin w/spade rudder
Rigging Type:
Masthead Sloop
LOA:
31.00 ft / 9.45 m
LWL:
24.00 ft / 7.32 m
Beam:
9.17 ft / 2.80 m
S.A. (reported):
440.00 ft2 / 40.88 m2
Draft (max):
5.00 ft / 1.52 m
Displacement:
9,350 lb / 4,241 kg
Ballast:
3,450 lb / 1,565 kg
S.A./Disp.:
15.92
Bal./Disp.:
36.90
Disp./Len.:
301.95
Construction:
FG
Ballast Type:
Lead
First Built:
1966
# Built:
24
Builder:
Spencer Boats
Designer:
John Brandlmayr

Auxiliary Power/Tanks (orig. equip.)

Fuel:
20 gals / 76 L

Sailboat Calculations

S.A./Disp.:
15.92
Bal./Disp.:
36.90
Disp./Len.:
301.95
Comfort Ratio:
28.93
Capsize Screening Formula:
1.74
S#:
1.65

Rig and Sail Particulars

I:
37.00 ft / 11.28 m
J:
12.50 ft / 3.81 m
P:
31.00 ft / 9.45 m
E:
13.50 ft / 4.11 m
S.A. Fore:
231.25 ft2 / 21.48 m2
S.A. Main:
209.25 ft2 / 19.44 m2
S.A. Total (100% Fore + Main Triangles)
440.50 ft2 / 40.92 m2
S.A./Disp. (calc.):
15.93
Est. Forestay Len.:
39.05 ft / 11.90 m

Accommodations

Headroom:
6.17 ft / 1.88 m
Water:
25 gals / 95 L

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