The Oyster 575, a centre-cockpit cutter, was designed by Rob Humphreys and built in the UK by Oyster Marine Ltd.
Underwater Profile: Fin keel and spade rudder
Hull Material: GRP (Fibreglass)
Length Overall: 58'8" (17.9m)
Waterline Length: 51'6" (15.7m)
Beam: 16'5" (5.0m)
Draft: 8'10" (2.7m)*
Rig Type: Cutter
Displacement: 58,422lb (26,500kg)
Designer: Rob Humphreys
Builder: Oyster Marine (UK)
Year First Built: 2010
* A shoal draft and a centreboard version are also available.
1. Sail Area/Displacement Ratio: 22.4
2. Ballast/Displacement Ratio: 30.6
3. Displacement/Length Ratio: 191
4. Comfort Ratio: 40.5
5. Capsize Screening Formula: 1.7
1. A Sail Area/Displacement Ratio of 22.4 suggests that, in the right hands, the Oyster 575 will have enough performance to leave most other sailboats of similar waterline length well astern.
2. A Ballast/Displacement Ratio of 30.6 would usually mean that the Oyster 575 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 191, tells us the Oyster 575 is a light-to-moderate 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 40.5 suggests that crew comfort of an Oyster 575 in a seaway is similar to what you would associate with the motion of a heavy bluewater cruising boat. Pitching and rolling will be well damped - your cup of coffee on the salon table stands a reasonable chance of staying there in most conditions.
5. The Capsize Screening Formula (CSF) of 1.7 tells us that an Oyster 575 would be a safer choice of sailboat for an ocean passage than one with a CSF of more than 2.0.
May 29, 23 08:35 AM
May 26, 23 09:28 AM
May 19, 23 05:13 AM