The Westerly Typhoon 37, an aft-cockpit fractional sloop, was designed by Ed Dubois and built in the UK by Westerly Marine Construction Co Ltd.
Underwater Profile: Fin keel & spade rudder
Hull Material: GRP (Fibreglass)
Length Overall: 37'4" (11.4m)
Waterline Length: 31'11" (9.7m)
Beam: 12'4" (3.8m)
Draft: 6'0" (1.8m)
Rig Type: Fractional sloop
Displacement: 16,470lb (7,471kg)
Designer: Ed Dubois
Builder: Westerly Marine Construction Co Ltd (UK)
Year First Built: 1990
Year Last Built: 1993
Number Built: 40
1. Sail Area/Displacement Ratio: 21.3
2. Ballast/Displacement Ratio: 36.7
3. Displacement/Length Ratio: 226
4. Comfort Ratio: 26.7
5. Capsize Screening Formula: 1.9
read more about these Key Performance Indicators...
1. A Sail Area/Displacement Ratio of 21.3 suggests that, in the right hands, the Westerly Typhoon 37 will have enough performance to leave most other sailboats of similar waterline length well astern.
2. A Ballast/Displacement Ratio of 36.7 means that a sailboat like the Westerly Typhoon 37 (which doesn't have a stiffness-enhancing bulb keel), is likely to benefit from being reefed early to keep her sailing upright in a moderate breeze.
3. A Displacement/Length Ratio of 226 tells us the Westerly Typhoon 37 is a moderate displacement cruiser, which means she'll carry all your cruising gear without it having a dramatic effect on her performance. Most of today's sailboats intended for offshore cruising fall into this displacement category.
4. Ted Brewer's Comfort Ratio of 26.7 suggests that crew comfort of a Westerly Typhoon 37 in a seaway is similar to what you would associate with the motion of a coastal cruiser with moderate stability, which is not encouraging news for anyone prone to seasickness.
5. The Capsize Screening Formula (CSF) of 1.9 indicates that a Westerly Typhoon 37 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0.
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