The Hinckley Souwester 42 Sailboat
Specs & Key Performance Indicators
The Hinckley Souwester 42 was designed by McCurdy & Rhodes and built in the USA by Henry R. Hinckley & Co.
A Hinckley Sou'wester 42 sailboat. This one is a cutter, but others were produced as masthead sloops.
Published Specification for the Hinckley Souwester 42
Underwater Profile: Fin keel and skeg-hung Rudder
Hull Material: GRP
Length Overall: 42'9" (12.1m)
Waterline Length: 31'3" (9.5m)
Beam: 12'6" (3.8m)
Draft: 7'0" (2.1m) or shoal draft version 5'0" (1.5m)
Rig Type: Masthead sloop (or cutter)
Displacement: 24,000lb (10,886kg)
Designer: McCurdy & Rhodes
Builder: Henry R. Hinckley & Co (USA)
Year First Built: 1995
Published Design Ratios for the Hinckley Souwester 42
1. Sail Area/Displacement Ratio: 15.8
- Less than 16 would be considered under-powered;
- 16 to 20 would indicate reasonably good performance;
- Over 20 suggests relatively high performance.
2. Ballast/Displacement Ratio: 35.4
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 351
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 37.0
- Under 20 indicates a lightweight racing boat
- 20 to 30 indicates a coastal cruiser
- 30 to 40 indicates a moderate offshore cruising boat
- 40 to 50 indicates a heavy offshore boat
- Over 50 indicates an extremely heavy offshore boat
5. Capsize Screening Formula: 1.7
- Under 2.0 (the lower the better): Better suited for ocean passages
- Over 2.0: Less suited for ocean passages
read more about these Key Performance Indicators...
Summary Analysis of the Design Ratios for the Hinckley Souwester 42
1. A Sail Area/Displacement Ratio of just 15.8 suggests that the Hinckley Souwester 42 will need a stiff breeze to get her going. In light conditions, unless you've got plenty of time on your hands, motor-sailing may be the way to go.
2. A Ballast/Displacement Ratio of 35.4 means that the Hinckley Souwester 42 will have a tendency to heel excessively in a gust, and she'll need to be reefed early to keep her sailing upright in a moderate breeze.
3. A Displacement/Length Ratio of 351, puts the Hinckley Souwester 42 in the top end of the heavy displacement category and just creeping into the ultra-heavy category. Load her up as much as you like and her performance will be hardly affected. Few sailboats are built to this displacement category these days - but they remain popular with many experienced long-distance sailors.
4. Ted Brewer's Comfort Ratio of 37.4 suggests that crew comfort of a Hinckley Souwester 42 in a seaway is similar to what you would associate with the motion of a moderate bluewater cruising boat - a predictable and acceptable motion for most seasoned sailors.
5. The Capsize Screening Formula (CSF) of 1.7 tells us that a Hinckley Souwester 42 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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