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BERWICK 31 (WESTERLY)

Built by Westerly Marine Ltd. (UK) • Designed by Laurent Giles
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BERWICK 31 (WESTERLY) - Photo
BERWICK 31 (WESTERLY) - Drawing

General Information

Hull Type: Twin Keel
Rigging Type: Masthead Sloop
Construction: FG
First Built: 1973
Last Built: 1980
Number Built: 309

Dimensions

Length Overall (LOA): 9.45 m
Length Waterline (LWL): 7.62 m
Beam: 2.90 m
Draft (Max): 1.09 m

Weight & Ballast

Displacement: 4,441 kg
Ballast: 2,012 kg

Sail Plan

Foresail Area: 21.14 m²
Mainsail Area: 18.29 m²
Total Sail Area (calculated): 39.43 m²
Sail Area (reported): 39.39 m²
I (Fore Triangle Height): 10.67 m
J (Fore Triangle Base): 3.96 m
P (Mainsail Hoist): 9.45 m
E (Boom Length): 3.87 m

Engine & Systems

Engine Make: Volvo Penta
Engine Type: Diesel
Engine Model: MD2B
Engine Power: 23 HP
Fuel Capacity: 76 L
Water Capacity: 114 L

Performance Ratios

Hull Speed: 6.70 knots
SA/Displacement (Calculated): 14.59
SA/Displacement (Reported): 14.87
Ballast/Disp Ratio: 45.31%
Displacement/Length: 279.71
Comfort Ratio: 28.14
Capsize Screening: 1.78
S-Number: 1.73

Notes

BERWICK 31 is an aft cockpit model. It is the twin/bilge keel version of the LONGBOW.