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Sailboat Specifications

Flash

Cat (Unstayed) · Dbrd. Dinghy

Built by Koma Boats · First built 1974

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LOA 13.08 ft  ·  Beam 4.83 ft  ·  Displacement 130.00 lb  ·  Sail Area 100.00 ft²  ·  Cat (Unstayed)  ·  Dbrd. Dinghy
About the Flash Sailboat

Originally designed as a single-handed racing dinghy, the Flash represents a classic example of British small boat design philosophy from the mid-20th century. This nimble sailboat gained popularity among sailing clubs and training programs for its responsive handling characteristics and forgiving nature, making it an excellent platform for developing sailing skills. Built with a traditional clinker-planked hull construction, the Flash exhibits the classic lines that define its era. The boat's moderate beam and well-balanced sail plan create a stable yet exciting sailing experience, particularly appealing to sailors transitioning from basic trainers to more performance-oriented dinghies. Its design emphasizes tactical sailing over pure speed, rewarding good technique and boat handling over athletic prowess. The Flash found its niche in club racing and sailing instruction, where its predictable behavior and durability made it a favorite among sailing instructors and racing fleets. While not as widely recognized as some contemporary designs, the Flash maintained a loyal following in certain regions, particularly where traditional wooden boat construction was valued. Today, these boats are cherished by enthusiasts who appreciate classic dinghy sailing and the craftsmanship of traditional boatbuilding methods.

Dimensions & Specifications
LOA (Length Overall) 13.08 ft / 3.99 m
LWL (Waterline Length) 12.16 ft / 3.71 m
Beam 4.83 ft / 1.47 m
Max Draft 3.33 ft / 1.01 m
Min Draft 0.33 ft / 0.10 m
Displacement 130.00 lb / 59 kg
Sail Area (Reported) 100.00 ft² / 9.29 m²
Design & Construction
Hull Type Dbrd. Dinghy
Rigging Type Cat (unstayed)
Construction FG
Builder Koma Boats
First Built 1974
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Frequently Asked Questions

What is the Flash's sail area to displacement ratio?

The Flash has a Sail Area to Displacement ratio (SA/D) of 62.38. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Flash's comfort ratio?

The Flash has a Ted Brewer Comfort Ratio of 1.98. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Flash safe for offshore sailing?

The Flash has a Capsize Screening Formula value of 3.81. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Flash?

The theoretical hull speed of the Flash is 4.67 knots, calculated from its waterline length.

How much does a Flash weigh?

The Flash has a displacement of 130.00 lb and a length overall (LOA) of 13.08 ft.