The Moody Eclipse 43 Sailboat
Specs & Key Performance Indicators
The Moody Eclipse 43, a deck saloon cruising yacht, was designed by Bill Dixon and built in the UK by Marine Projects Ltd.
This Moody Eclipse 43 is fitted with a 'Solent Rig' - she's not a cutter.
Published Specification for the Moody Eclipse 43
Underwater Profile: Fin keel and skeg-hung rudder;
Hull Material: GRP (Fiberglass);
Length Overall: 42'6" (13.0m);
Waterline Length: 36'1" (11.0m);
Beam: 14'0" (4.3m);
Draft: 4'10" (1.5m);
Rig Type: Masthead Sloop;
Displacement: 23,000lb (10,433kg);
Designer: Bill Dixon;
Builder: Marine Projects Ltd (UK);
Year First Built: 1989;
Year Last Built: 1991;
Number Built: 38;
Owners Association: Moody Owners Association;
Published Design Ratios for the Moody Eclipse 43
1. Sail Area/Displacement Ratio: 15.7
- 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: 38.0
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 219
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 27.8
- 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: 2.0
- 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 Moody Eclipse 43
1. A Sail Area/Displacement Ratio of just 15.7 suggests that the Moody Eclipse 43 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 38.0 means that the Moody Eclipse 43 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 219, tells us the Moody Eclipse 43 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 27.8 suggests that crew comfort of a Moody Eclipse 43 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 2.0 is on the cusp of suitability for an ocean passage, so venture offshore with caution.
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