The Beneteau 423 Sailboat
Specs & Key Performance Indicators
The Beneteau 423, a masthead sloop, was designed by Groupe Finot and built in France by Beneteau.
'Worry No More', a Beneteau 423 anchored in Deep Bay, Antigua
Published Specification for the Beneteau 423
Underwater Profile: Bulb fin keel and spade rudder
Hull Material: GRP (Fiberglass)
Length Overall: 43'2" (13.1m)
Waterline Length: 38'6" (11.8m)
Beam: 12'11" (3.9m)
Draft: 5'7" (1.7m)
Rig Type: Masthead Sloop
Displacement: 19,500lb (8,845kg)
Designer: Groupe Finot
Builder: Beneteau (France)
Year First Built: 2002
Owners Association: Beneteau Owners Club
Published Design Ratios for the Beneteau 423
1. Sail Area/Displacement Ratio: 19.1
- 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: 29.9
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 152
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 25.0
- 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: 1.9
- 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 423
1. A Sail Area/Displacement Ratio of 19.1 suggests that the Beneteau 423 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 29.9 would usually mean that the Beneteau 423 would have a tendency to heel excessively 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 the keel, she's likely to be considerably stiffer than her Ballast/Displacement Ratio might suggest.
3. A Displacement/Length Ratio of 152, tells us the Beneteau 423 is clearly a light displacement sailboat. If she's loaded with too much heavy cruising gear her performance will suffer dramatically.
4. Ted Brewer's Comfort Ratio of 25.0 suggests that crew comfort of a Beneteau 423 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 tells us that a Beneteau 423 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0.
Other sailboats in the Beneteau product range include:
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