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HERRESHOFF 31 (CAT KETCH 31)
Built by Cat Ketch Corp.
• Designed by Halsey Herreshoff
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General Information
Hull Type:
Fin w/transom hung rudder
Rigging Type:
Cat Ketch (unstayed)
First Built:
1979
Last Built:
1986
Number Built:
100
Dimensions
Length Overall (LOA):
9.40 m
Length Waterline (LWL):
8.53 m
Beam:
3.15 m
Draft (Max):
1.22 m
Weight & Ballast
Displacement:
3,429 kg
Ballast:
1,520 kg
Ballast Type:
Lead
Sail Plan
Mainsail Area:
22.11 m²
Sail Area:
22.11 m²
Sail Area (reported):
36.51 m²
P (Mainsail Hoist):
10.36 m
E (Boom Length):
4.27 m
PY (Mizzen Hoist):
8.84 m
EY (Mizzen Boom):
3.51 m
Engine & Systems
Engine Make:
Nanni/Yanmar
Engine Type:
Diesel
Fuel Capacity:
68 L
Water Capacity:
227 L
Performance Ratios
Hull Speed:
7.09 knots
SA/Displacement (Calc):
9.92
SA/Displacement (Reported):
16.38
Ballast/Disp Ratio:
44.31%
Displacement/Length:
154.24
Comfort Ratio:
18.07
Capsize Screening:
2.11
Immersion:
184 kg/cm
Notes
Mainsail 242 sq.ft./22.48m2
Market Value
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