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CAPE DORY 31

Built by Cape Dory Yachts (USA) • Designed by Carl Alberg
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CAPE DORY 31 - Drawing

General Information

Hull Type: Long Keel
Rigging Type: Cutter
Construction: FG
First Built: 1983
Last Built: 1985
Number Built: 89

Dimensions

Length Overall (LOA): 9.55 m
Length Waterline (LWL): 7.09 m
Beam: 2.97 m
Draft (Max): 1.45 m

Weight & Ballast

Displacement: 5,216 kg
Ballast: 1,973 kg

Sail Plan

Foresail Area: 25.71 m²
Mainsail Area: 21.14 m²
Total Sail Area (calculated): 46.85 m²
Sail Area (reported): 46.82 m²
I (Fore Triangle Height): 12.50 m
J (Fore Triangle Base): 4.11 m
P (Mainsail Hoist): 10.67 m
E (Boom Length): 3.96 m

Engine & Systems

Performance Ratios

Hull Speed: 6.46 knots
SA/Displacement (Calculated): 15.58
SA/Displacement (Reported): 15.88
Ballast/Disp Ratio: 37.83%
Displacement/Length: 408.49
Comfort Ratio: 33.34
Capsize Screening: 1.73
S-Number: 1.03