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COLUMBIA 31

Built by Columbia Yachts (USA) • Designed by Charles Morgan
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COLUMBIA 31 - Photo
COLUMBIA 31 - Drawing

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General Information

Hull Type: Keel/Cbrd.
Rigging Type: Masthead Sloop
Construction: FG
First Built: 1965
Last Built: 1968
Number Built: 97

Dimensions

Length Overall (LOA): 9.30 m
Length Waterline (LWL): 6.55 m
Beam: 3.00 m
Draft (Max): 2.13 m
Draft (Min): 0.94 m

Weight & Ballast

Displacement: 3,856 kg
Ballast: 1,542 kg

Sail Plan

Foresail Area: 18.68 m²
Mainsail Area: 20.54 m²
Total Sail Area (calculated): 39.22 m²
Sail Area (reported): 39.21 m²
I (Fore Triangle Height): 10.82 m
J (Fore Triangle Base): 3.45 m
P (Mainsail Hoist): 9.30 m
E (Boom Length): 4.42 m

Engine & Systems

Engine Make: Universal
Engine Type: Gas
Engine Model: Atomic 4
Engine Power: 20 HP

Performance Ratios

Hull Speed: 6.21 knots
SA/Displacement (Calculated): 15.95
SA/Displacement (Reported): 16.26
Ballast/Disp Ratio: 40.00%
Displacement/Length: 381.82
Comfort Ratio: 25.86
Capsize Screening: 1.93
S-Number: 1.18

Notes

Derived from the Morgan designed 'TIGER CUB'(1963?).