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SPENCER 51/53
Built by Spencer Boats Ltd.
• Designed by John Brandlmayer
General Information
Hull Type:
Fin with rudder on skeg
Rigging Type:
Masthead Sloop
Construction:
FG
First Built:
1970
Number Built:
31
Dimensions
Length Overall (LOA):
15.54 m
Length Waterline (LWL):
11.43 m
Beam:
4.01 m
Draft (Max):
2.26 m
Weight & Ballast
Displacement:
13,608 kg
Ballast:
5,897 kg
Sail Plan
Foresail Area:
55.27 m²
Mainsail Area:
44.13 m²
Total Sail Area (calculated):
99.40 m²
Sail Area (reported):
98.85 m²
I (Fore Triangle Height):
17.43 m
J (Fore Triangle Base):
6.34 m
P (Mainsail Hoist):
15.24 m
E (Boom Length):
5.79 m
Engine & Systems
Performance Ratios
Hull Speed:
8.21 knots
SA/Displacement (Calculated):
17.44
SA/Displacement (Reported):
17.70
Ballast/Disp Ratio:
43.33%
Displacement/Length:
253.97
Comfort Ratio:
36.02
Capsize Screening:
1.70
S-Number:
2.21
Notes
The SPENCER 51 & 53 are the same hull with different stern overhang. They were built with aft and center cockpits, sloop and ketch rigs.