Launched in 1979, this compact cruiser from Bob Seidelmann represents solid American boatbuilding during the height of the production sailboat era. At just under 30 feet overall with a 24-foot waterline, the Seidelmann 30 T strikes a practical balance between manageable size and interior volume, thanks to her generous 11-foot beam. The masthead sloop rig and moderate sail area of 420 square feet make her well-suited for coastal cruising and weekend adventures. Her fin keel and spade rudder configuration provides responsive handling, while the substantial 3,600 pounds of ballast in an 8,800-pound displacement creates a reassuring stability for her size class. The comfort ratio of 21.64 suggests she'll provide a reasonably gentle motion in seaway conditions typical of coastal waters. Built by Seidelmann Yachts in fiberglass construction, these boats earned a reputation for honest construction and practical layouts. The SA/Displacement ratio of 15.82 indicates moderate performance characteristics—she won't set any speed records, but will move along respectably in average conditions. With her hull speed of 6.56 knots and capsize screening formula of 2.13, the 30 T represents a sensible choice for sailors seeking a well-mannered coastal cruiser that can handle extended weekend trips with confidence.
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What is the Seidelmann 30 T's sail area to displacement ratio?
The Seidelmann 30 T has a Sail Area to Displacement ratio (SA/D) of 15.82. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Seidelmann 30 T's comfort ratio?
The Seidelmann 30 T has a Ted Brewer Comfort Ratio of 21.64. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Seidelmann 30 T safe for offshore sailing?
The Seidelmann 30 T has a Capsize Screening Formula value of 2.13. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Seidelmann 30 T?
The theoretical hull speed of the Seidelmann 30 T is 6.56 kn knots, calculated from its waterline length.
How much does a Seidelmann 30 T weigh?
The Seidelmann 30 T has a displacement of 8,800.00 lb and a length overall (LOA) of 29.92 ft.
Who designed the Seidelmann 30 T?
The Seidelmann 30 T was designed by Bob Seidelmann, first built in 1979.