Thomas Gillmer's Roughwater 33 stands as a testament to traditional cruising design principles from the mid-1970s. Built by Taiwan's Tao-Yuan Boatyard between 1975 and 1985, this masthead sloop exemplifies the era's emphasis on seaworthiness over speed, making it an ideal choice for serious coastal and offshore cruising. The design features a classic long keel with transom-hung rudder configuration, providing excellent tracking ability and directional stability in challenging conditions. With a substantial displacement of 15,000 pounds and one-third of that weight carried as ballast, the boat offers impressive stability and load-carrying capacity for extended voyaging. The conservative comfort ratio of 39.69 and capsize screening value of 1.58 underscore its seaworthy nature. Gillmer's reputation as a naval architect focused on traditional, ocean-capable designs shines through in the Roughwater 33's proportions. The moderate sail area-to-displacement ratio suggests this isn't a speed demon, but rather a steady, reliable passage-maker that prioritizes safety and comfort over racing performance. The fiberglass construction and proven Taiwanese build quality have helped many of these boats remain active decades after production ended, earning respect among cruising sailors seeking a dependable, go-anywhere vessel.
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What is the Roughwater 33's sail area to displacement ratio?
The Roughwater 33 has a Sail Area to Displacement ratio (SA/D) of 12.14. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Roughwater 33's comfort ratio?
The Roughwater 33 has a Ted Brewer Comfort Ratio of 39.69. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Roughwater 33 safe for offshore sailing?
The Roughwater 33 has a Capsize Screening Formula value of 1.58. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Roughwater 33?
The theoretical hull speed of the Roughwater 33 is 6.83 kn knots, calculated from its waterline length.
How much does a Roughwater 33 weigh?
The Roughwater 33 has a displacement of 15,000.00 lb and a length overall (LOA) of 33.08 ft.
Who designed the Roughwater 33?
The Roughwater 33 was designed by Thomas Gillmer, first built in 1975.