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Sailboat Specifications

Gloucester 18 Whitecap

Fractional Sloop · Centerboard Dinghy

Designed by Harry Sindle · Built by Lockley-Newport Boats Inc. (Usa) · First built 1974

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LOA 18.00 ft  ·  Beam 6.58 ft  ·  Displacement 750.00 lb  ·  Sail Area 176  ·  Fractional Sloop  ·  Centerboard Dinghy
About the Gloucester 18 Whitecap Sailboat

With limited documentation available, the Gloucester 18 Whitecap represents an intriguing piece of sailing history that deserves recognition among small boat enthusiasts. This 18-foot sailboat appears to have been designed with the practical sailing traditions of Gloucester, Massachusetts in mind, where generations of mariners have valued seaworthiness and reliability above flashy performance. Based on its name and heritage, the Whitecap likely embodies the robust construction principles associated with boats from this legendary fishing port. Gloucester-designed vessels have historically been built to handle the challenging conditions of New England waters, suggesting this boat would be well-suited for coastal sailing and day cruising in moderate conditions. The relatively modest size makes it an appealing option for sailors seeking an uncomplicated sailing experience without the complexity of larger vessels. While comprehensive specifications remain elusive, the Gloucester connection implies thoughtful design focused on safety and ease of handling rather than cutting-edge performance. For prospective buyers interested in classic American small boat design, the Whitecap offers the appeal of owning a piece of New England's rich maritime tradition, though researching individual examples carefully would be essential given the limited available documentation.

Dimensions & Specifications
LOA (Length Overall) 18.00 ft / 5.49 m
LWL (Waterline Length) 16.50 ft / 5.03 m
Beam 6.58 ft / 2.01 m
Max Draft 5.00 ft / 1.52 m
Min Draft 0.67
Displacement 750.00 lb / 340 kg
Ballast 125.00 lb / 57 kg
Sail Area (Reported) 176
Design & Construction
Hull Type Centerboard Dinghy
Rigging Type Fractional Sloop
Construction FG
Designer Harry Sindle
Builder Lockley-Newport Boats Inc. (USA)
First Built 1974
Last Built 1984
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Frequently Asked Questions

What is the Gloucester 18 Whitecap's sail area to displacement ratio?

The Gloucester 18 Whitecap has a Sail Area to Displacement ratio (SA/D) of 34.17. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Gloucester 18 Whitecap's comfort ratio?

The Gloucester 18 Whitecap has a Ted Brewer Comfort Ratio of 5.56. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Gloucester 18 Whitecap safe for offshore sailing?

The Gloucester 18 Whitecap has a Capsize Screening Formula value of 2.9. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Gloucester 18 Whitecap?

The theoretical hull speed of the Gloucester 18 Whitecap is 5.44 knots, calculated from its waterline length.

How much does a Gloucester 18 Whitecap weigh?

The Gloucester 18 Whitecap has a displacement of 750.00 lb and a length overall (LOA) of 18.00 ft.

Who designed the Gloucester 18 Whitecap?

The Gloucester 18 Whitecap was designed by Harry Sindle, first built in 1974.