The Moody 346 Sailboat
Specs & Key Performance Indicators
The Moody 346, a centre cockpit sloop, was designed by Bill Dixon and built in the UK by Marine Projects Ltd.
A Moody 346
Published Specification for the Moody 346
Underwater Profile: Fin keel & skeg-hung rudder
Hull Material: GRP (Fibreglass)
Length Overall: 34'6" (10.5m)
Waterline Length: 27'11" (8.5m)
Beam: 11'7" (3.5m)
Draft: 5'0" (1.5m)
Rig Type: Masthead sloop
Displacement: 11,200lb (5,080kg)
Designer: Bill Dixon
Builder: Marine Projects Ltd (UK)
Year First Built: 1986
Year Last Built: 1990
Number Built: 254
Read more about the current range of Moody Yachts...
Published Design Ratios for the Moody 346
1. Sail Area/Displacement Ratio: 16.6
- 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: 40.2
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 230
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 22.2
- 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: 2.1
- 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 346
1. A Sail Area/Displacement Ratio of 16.6 suggests that the Moody 346 will, in the right conditions, approach her maximum hull speed readily and satisfy the sailing performance expectations of most cruising sailors.
2. A Ballast/Displacement Ratio of 40.2 means that the Moody 346 will stand up well to her canvas in a blow, helping her to power through the waves.
3. A Displacement/Length Ratio of 230, tells us the Moody 346 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 22.2 suggests that crew comfort of a Moody 346 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 2.1 indicates that a Moody 346 would not be the wisest choice of sailboat for ocean passage-making owing to the lower resistance to capsize in strong winds and heavy seas that is associated with sailboats with a CSF of 2.0 and above.
Other sailboats in the Moody range include:
The Moody 33S
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