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SPENCER 31
Built by Spencer Boats
• Designed by John Brandlmayr
General Information
Hull Type:
Fin w/spade rudder
Rigging Type:
Masthead Sloop
Construction:
FG
First Built:
1966
Number Built:
24
Dimensions
Length Overall (LOA):
9.45 m
Length Waterline (LWL):
7.32 m
Beam:
2.80 m
Draft (Max):
1.52 m
Headroom:
1.88 m
Weight & Ballast
Displacement:
4,241 kg
Ballast:
1,565 kg
Ballast Type:
Lead
Sail Plan
Foresail Area:
21.48 m²
Mainsail Area:
19.44 m²
Total Sail Area (calculated):
40.92 m²
Sail Area (reported):
40.88 m²
I (Fore Triangle Height):
11.28 m
J (Fore Triangle Base):
3.81 m
P (Mainsail Hoist):
9.45 m
E (Boom Length):
4.11 m
Engine & Systems
Fuel Capacity:
76 L
Water Capacity:
95 L
Performance Ratios
Hull Speed:
6.56 knots
SA/Displacement (Calculated):
15.62
SA/Displacement (Reported):
15.92
Ballast/Disp Ratio:
36.90%
Displacement/Length:
301.95
Comfort Ratio:
28.93
Capsize Screening:
1.74
S-Number:
1.65