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The Gulfstar Sailmaster 47, a centre-cockpit ketch, was designed by Vince Lazzara and built in the USA by Gulfstar Yachts.
Underwater Configuration: Fin keel with skeg-hung rudder
Hull Material: GRP (Fibreglass)
Length Overall: 42'5" (14.5m)
Waterline Length: 40'6" (12.3m)
Beam: 13'10" (4.2m)
Draft: 5'6" (1.7m)
Rig Type: Ketch
Displacement: 38,000lb (17,237kg)
Designer: Vince Lazzara
Builder: Gulfstar Yachts (USA)
Year First Built: 1978
Year Last Built: 1981
Number Built: 79
Owners Association: The Gulfstar Owners Club
'Ohana', a Gulfstar Sailmaster 47 for Sale
Now sold, but there are pics and info in the ad which may be useful to anyone researching these sailing boats.
1. Sail Area/Displacement Ratio: 13.1
2. Ballast/Displacement Ratio: 27.6
3. Displacement/Length Ratio: 255
4. Comfort Ratio: 41.7
5. Capsize Screening Formula: 1.7
1. A Sail Area/Displacement Ratio of just 13.1 suggests that the Gulfstar Sailmaster 47 will need a stiff breeze to get her going. In light conditions, unless you've got plenty of time on your hands, motor-sailing may be the way to go.
2. A Ballast/Displacement Ratio of 27.6 means that the Gulfstar Sailmaster 47 will have a tendency to heel excessively in a gust, and she'll need to be reefed early to keep her sailing upright in a moderate breeze.
3. A Displacement/Length Ratio of 255, tells us the Gulfstar Sailmaster 47 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 41.7 suggests that crew comfort of a Gulfstar Sailmaster 47 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 a Gulfstar Sailmaster 47 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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