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Sailboat Specifications

Skimmer

Cat (Marconi) · Centerboard Dinghy

Designed by William Crosby · Built by From Plans For Amateur Builder · First built 1933

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LOA 10.92 ft  ·  Beam 4.50 ft  ·  Displacement 300.00 lb  ·  Sail Area 65.00 ft²  ·  Cat (Marconi)  ·  Centerboard Dinghy
About the Skimmer Sailboat

Designed by William Crosby in 1933, this compact centerboard dinghy represents classic small boat design from sailing's golden age. Built from plans intended for amateur constructors, the Skimmer features traditional wood planked construction with single chine hull form that balances simplicity with seaworthiness. At just under 11 feet overall, this nimble dinghy excels in protected waters, harbors, and coastal sailing where its shallow 1.83-foot draft allows exploration of thin water areas larger boats cannot access. The catboat rig with its single sail configuration makes the Skimmer particularly appealing for solo sailing or teaching new sailors, eliminating the complexity of managing multiple sails while maintaining excellent control. With a displacement of only 300 pounds and 65 square feet of sail area, the boat delivers spirited performance in light to moderate conditions. The generous beam of 4.5 feet provides stability despite the compact size, while the centerboard design allows for easy trailering and beach launching. The Skimmer's capsize screening formula of 2.69 indicates reasonable stability for a small dinghy, though like all boats of this size, it requires attentive seamanship. This design suits recreational sailors seeking an affordable, manageable boat for day sailing adventures in sheltered waters.

Dimensions & Specifications
LOA (Length Overall) 10.92 ft / 3.33 m
Beam 4.50 ft / 1.37 m
Max Draft 1.83 ft / 0.56 m
Min Draft 4.50 ft / 1.37 m
Displacement 300.00 lb / 136 kg
Sail Area (Reported) 65.00 ft² / 6.04 m²
Design & Construction
Hull Type Centerboard Dinghy
Rigging Type Cat (Marconi)
Construction Wood planked, single chine
Designer William Crosby
Builder from plans for amateur builder
First Built 1933
Related Sailboats Classic Moth · Penguin · Heron · Mirror Dinghy Int · Dyer Dink
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Frequently Asked Questions

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

The Skimmer has a Sail Area to Displacement ratio (SA/D) of 23.23. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Skimmer's comfort ratio?

The Skimmer has a Ted Brewer Comfort Ratio of 6.36. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

What is the hull speed of the Skimmer?

The theoretical hull speed of the Skimmer is 4.08 kn knots, calculated from its waterline length.

How much does a Skimmer weigh?

The Skimmer has a displacement of 300.00 lb and a length overall (LOA) of 10.92 ft.

Who designed the Skimmer?

The Skimmer was designed by William Crosby, first built in 1933.