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Sailboat Specifications

Gulfstar 63

Masthead Ketch · Fin With Rudder On Skeg

Designed by R. C. Lazzarra · Built by Gulfstar Yachts · First built 1986

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LOA 63.00 ft  ·  Beam 16.18 ft  ·  Displacement 68,000.00 lb  ·  Sail Area 1,450.00 ft²  ·  Masthead Ketch  ·  Fin With Rudder On Skeg
About the Gulfstar 63 Sailboat

Building on Gulfstar's reputation for producing solid, affordable cruising yachts, this 63-footer represents the larger end of the builder's range during their active production years. Gulfstar Marine established itself as a manufacturer focused on practical, seaworthy vessels designed for serious cruising sailors who valued substance over flash. This substantial yacht was engineered for extended offshore passages and comfortable liveaboard cruising. The design philosophy emphasized seaworthiness, interior volume, and construction quality rather than racing performance. Like other Gulfstar models, the 63 likely featured a traditional full keel configuration that provided directional stability and protected the propeller and rudder during groundings. The spacious interior accommodations would have been a standout feature, offering multiple staterooms and generous common areas suitable for extended voyaging or full-time living aboard. Gulfstar's approach to yacht building focused on creating boats that could handle serious ocean work while providing the comfort and storage capacity needed for long-distance cruising. While detailed specifications remain limited, this model would appeal to experienced sailors seeking a proven platform for world cruising, particularly those who prioritize seaworthiness and interior space over cutting-edge performance characteristics.

Dimensions & Specifications
LOA (Length Overall) 63.00 ft / 19.20 m
LWL (Waterline Length) 51.50 ft / 15.70 m
Beam 16.18 ft / 4.93 m
Max Draft 6.83 ft / 2.08 m
Displacement 68,000.00 lb / 30,844 kg
Ballast 23,000.00 lb / 10,433 kg
Sail Area (Reported) 1,450.00 ft² / 134.71 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Ketch
Construction FG
Designer R. C. Lazzarra
Builder Gulfstar Yachts
First Built 1986
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Frequently Asked Questions

What is the Gulfstar 63's sail area to displacement ratio?

The Gulfstar 63 has a Sail Area to Displacement ratio (SA/D) of 13.99. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Gulfstar 63's comfort ratio?

The Gulfstar 63 has a Ted Brewer Comfort Ratio of 46.96. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Gulfstar 63 safe for offshore sailing?

The Gulfstar 63 has a Capsize Screening Formula value of 1.59. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Gulfstar 63?

The theoretical hull speed of the Gulfstar 63 is 9.62 knots, calculated from its waterline length.

How much does a Gulfstar 63 weigh?

The Gulfstar 63 has a displacement of 68,000.00 lb and a length overall (LOA) of 63.00 ft.

Who designed the Gulfstar 63?

The Gulfstar 63 was designed by R. C. Lazzarra, first built in 1986.