Gulfstar 50

1975 — 1980
Designer
Vince & Richard Lazarra
Builder
Gulfstar Yachts
Associations
?
# Built
172
Hull Type
Fin with rudder on skeg
Construction
FG

Dimensions

Length Overall
50 0 / 15.2 m
Waterline Length
39 7 / 12.1 m
Beam
13 8 / 4.2 m
Draft
5 6 / 1.7 m
Displacement
35,000 lbs / 15,876 kg
Ballast
10,500 lbs / 4,763 kg
drawing

Rig and Sails

Type
Masthead Sloop
Reported Sail Area
896 ft2 / 83.2 m2
Total Sail Area
895.3 ft2 / 83.2 m2
Mainsail
Sail Area
409.2 ft2 / 38 m2
P
43 0 / 13.1 m
E
18 11 / 5.8 m
Mast Height
?
Foresail
Sail Area
486.1 ft2 / 45.2 m2
I
50 10 / 15.5 m
J
19 1 / 5.8 m
Forestay Length
54 4 / 16.6 m

Auxilary Power

Make
Perkins
Model
4.154
HP
62
Fuel Type
Diesel
Fuel Capacity
?

Accomodations

Water Capacity
200 gal / 757 l
Holding Tank Capacity
?
Headroom
?

Calculations

Hull Speed
8.44 knots
Sail Area/Displacement
13.4
under powered
Ballast/Displacement
30.0
less stiff, less powerful
Displacement/Length
250.28
moderate
Comfort Ratio
38.55
moderate bluewater cruising boat
Capsize Screening
1.67
better suited for ocean passages

Notes

Available as a sloop or ketch. Sometimes referred to as the GULFSTAR CSY 50 though it was never built specifically for or by CSY, most originally went into the charter trade.
Ketch rig:
I: 50.90’ / 15.51m
J: 19.10’ / 5.82m
P: 43.08’ / 13.13m
E: 15.29’ / 4.66m
PY: 27.00’ / 8.23m
EY: 11.00’ / 3.35m
Sail Area (100% fore+main triangles): 963.94 ft2/89.55 m2
Tall sloop:
I: 55.00’ / 16.76m
J: 19.10’ / 5.82m
P: 47.50’ / 14.48m
E: 19.00’ / 5.79m
Sail Area (100% fore+main triangles): 976.50 ft2/90.72 m2


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