Published Specification for the Beneteau Cyclades 50-5
Underwater Profile: Bulb fin keel & spade rudder
Hull Material: GRP (Fibreglass)
Length Overall: 51'4" (15.7m)
Waterline Length: 43'3" (13.2m)
Beam: 16'1" (4.9m)
Draft: 6'7" (2.0m)
Rig Type: Masthead sloop
Displacement: 27,954lb (12,680kg)
Designer: Berret-Racoupeau Yacht Design
Builder: Beneteau (France)
Year First Built: 2008
Year Last Built: 2010
Published Design Ratios for the Beneteau Cyclades 50-5
1. Sail Area/Displacement Ratio: 18.6
- 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: 31.2
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 154
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 23.4
- 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 Beneteau Cyclades 50-5
1. A Sail Area/Displacement Ratio of 18.6 suggests that the Beneteau Cyclades 50-5 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 31.2 would usually mean that the Beneteau Cyclades 50-5 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 154, tells us the Beneteau Cyclades 50-5 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 23.4 suggests that crew comfort of a Beneteau Cyclades 50-5 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 of 2.1 tells us that a Beneteau Cyclades 50-5 would not be as good a choice of sailboat for ocean passage-making, owing to the increased risk of capsize in strong winds and heavy seas, when compared to a sailboat with a CSF of less than 2.0.