Designed by the legendary naval architecture firm Sparkman & Stephens and built by Finnish yard Aa Boats starting in 1971, this 30-footer represents classic Scandinavian craftsmanship combined with proven American design principles. The Ss 66 features a moderate fin keel with rudder mounted on a protective skeg, providing good directional stability while maintaining reasonable performance characteristics. With a displacement of 7,716 pounds and nearly half that weight in ballast, this solidly-built fiberglass yacht offers reassuring stability for coastal cruising and short offshore passages. The comfortable beam of 9.28 feet provides reasonable interior space for a boat this size, while the substantial 5.48-foot draft ensures good upwind performance and tracking. The masthead sloop rig carries 451 square feet of sail area, delivering a moderate sail area-to-displacement ratio that favors reliability over pure speed. A low comfort ratio of 24.95 suggests this boat will move through waves rather than ride over them, typical of performance-oriented designs from this era. The excellent capsize screening value of 1.88 indicates strong stability characteristics suitable for serious coastal cruising and limited offshore work. This yacht appeals to sailors seeking a well-built, seaworthy vessel with classic lines and predictable handling characteristics.
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What is the Ss 66's sail area to displacement ratio?
The Ss 66 has a Sail Area to Displacement ratio (SA/D) of 18.54. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Ss 66's comfort ratio?
The Ss 66 has a Ted Brewer Comfort Ratio of 24.95. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Ss 66 safe for offshore sailing?
The Ss 66 has a Capsize Screening Formula value of 1.88. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Ss 66?
The theoretical hull speed of the Ss 66 is 6.33 kn knots, calculated from its waterline length.
How much does a Ss 66 weigh?
The Ss 66 has a displacement of 7,716.00 lb and a length overall (LOA) of 29.86 ft.
Who designed the Ss 66?
The Ss 66 was designed by Sparkman & Stephens, first built in 1971.