The Gulfstar 50, a centre-cockpit ketch, was designed by Vincent Lazarra and built in the USA by Gulfstar Yachts.
Underwater Profile: Fin keel with skeg-hung rudder
Hull Material: GRP (Fibreglass)
Length Overall: 50'0" (15.2m)
Waterline Length: 39'8" (12.1m)
Beam: 13'8" (4.2m)
Draft: 5'6" (1.7m)
Rig Type: Ketch
Displacement: 35,000lb (15,876kg)
Designer: Vincent Lazarra
Builder: Gulfstar Yachts (USA)
Year First Built: 1975
Year Last Built: 1980
Number Built: 250
1. Sail Area/Displacement Ratio: 13.5
2. Ballast/Displacement Ratio: 30.0
3. Displacement/Length Ratio: 250
4. Comfort Ratio: 38.9
5. Capsize Screening Formula: 1.7
1. A Sail Area/Displacement Ratio of 13.5 suggests that the Gulfstar 50 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 30.0 means that a sailboat like the Gulfstar 50 (which doesn't have its ballast concentrated in a bulb at the foot of a deep keel), is likely to benefit from being reefed early to keep her sailing upright in a moderate breeze.
3. A Displacement/Length Ratio of 250, tells us the Gulfstar 50 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 38.9 suggests that crew comfort of a Gulfstar 50 in a seaway is similar to what you would associate with the motion of a moderate bluewater cruising boat - a predictable and acceptable motion for most seasoned sailors.
5. The Capsize Screening Formula (CSF) of 1.7 tells us that a Gulfstar 50 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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