Originally designed by the renowned Sparkman & Stephens firm in 1946, this compact centerboard dinghy represents classic American small boat design from the post-war era. Built by O'Day Corporation, the Interclub Usa embodies the traditional approach to sailing education and recreational day sailing that defined mid-20th century boating culture. At just over 11 feet in length with a generous beam of nearly five feet, this wood and fiberglass construction dinghy offers remarkable stability for its size. The cat-rigged Marconi sail plan keeps things simple while providing adequate power with 72 square feet of sail area. The 150-pound displacement makes it light enough for easy handling and car-top transport, while the 3-foot draft centerboard configuration allows exploration of shallow waters. With a hull speed of 4.54 knots, the Interclub Usa is well-suited for protected waters, sailing instruction, and leisurely day sailing rather than serious racing or coastal passages. The low comfort ratio of 2.65 and moderate capsize screening value of 3.45 indicate this is fundamentally a fair-weather boat best enjoyed in calm conditions. Its Sparkman & Stephens pedigree ensures sound design principles, making it an excellent choice for beginning sailors or those seeking a classic, uncomplicated sailing experience.
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What is the Interclub Usa's sail area to displacement ratio?
The Interclub Usa has a Sail Area to Displacement ratio (SA/D) of 40.83. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Interclub Usa's comfort ratio?
The Interclub Usa has a Ted Brewer Comfort Ratio of 2.65. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Interclub Usa safe for offshore sailing?
The Interclub Usa has a Capsize Screening Formula value of 3.45. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Interclub Usa?
The theoretical hull speed of the Interclub Usa is 4.54 kn knots, calculated from its waterline length.
How much does a Interclub Usa weigh?
The Interclub Usa has a displacement of 150.00 lb and a length overall (LOA) of 11.50 ft.
Who designed the Interclub Usa?
The Interclub Usa was designed by Sparkman & Stephens, first built in 1946.