The Beneteau 46 Sailboat
Specs & Key Performance Indicators
The Beneteau 46, an aft-cockpit fractional sloop, was designed by Berret Racoupeau Yacht Design and built in France by Beneteau.
A Beneteau 46
Published Specification for the Beneteau 46
Underwater Profile: Bulb fin keel & skeg-hung rudder
Hull Material: GRP (Fibreglass)
Length Overall: 47'3" (14.4m)
Waterline Length: 40'0" (12.2m)
Beam: 13'11" (4.2m)
Draft: 5'9" (1.8m)
Rig Type: Fractional sloop
Displacement: 23,292lb (10,565kg)
Designer: Berret Racoupeau Yacht Design
Builder: Beneteau (France)
Year First Built: 2005
Published Design Ratios for the Beneteau 46
1. Sail Area/Displacement Ratio: 20.8
- 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: 30.7
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 162
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 25.6
- 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: 1.9
- 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 Beneteau 46
1. A Sail Area/Displacement Ratio of 20.8 suggests that, in the right hands, the Beneteau 46 will have enough performance to leave most other sailboats of similar waterline length well astern.
2. A Ballast/Displacement Ratio of 30.7 would usually mean that the Beneteau 46 would have a tendency to heel uncomfortably in a gust, and need to be reefed early to keep her sailing upright in a moderate breeze.
However, as she has much of her ballast concentrated in a bulb at the foot of her keel, she's likely to be considerably stiffer than her published Ballast/Displacement Ratio might suggest.
3. A Displacement/Length Ratio of 162 tells us the Beneteau 46 is clearly a light displacement sailboat. If she's loaded with too much heavy cruising gear her performance will suffer to a degree.
4. Ted Brewer's Comfort Ratio of 25.6 suggests that crew comfort of a Beneteau 46 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 Beneteau 46 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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