Designed by Jim Antrim in 1982, this 20-foot sailboat represents a compelling blend of performance and practicality for sailors seeking spirited coastal adventures. The fractional sloop rig and modern fin keel with bulb configuration deliver impressive sailing characteristics that belie the boat's compact size, making it an excellent choice for day sailing, club racing, and weekend coastal cruising. With a displacement of 1,850 pounds and 750 pounds of ballast, the Antrim 20 achieves a remarkable balance between stability and responsiveness. The fin keel with bulb design maximizes righting moment while maintaining moderate draft, allowing access to shallow waters without sacrificing upwind performance. Its fiberglass construction ensures durability and low maintenance, while the 8-foot beam provides surprising interior space and initial stability. The boat's sail area to displacement ratio of 29.69 indicates lively performance in light to moderate conditions, while the comfort ratio of 9.75 suggests this is primarily a day sailor rather than an extended cruising platform. The capsize screening formula of 2.61 falls within acceptable ranges for coastal sailing, though prudent seamanship remains essential in challenging conditions. For sailors wanting maximum performance in a trailerable package, the Antrim 20 offers an engaging sailing experience with the convenience of easy transport and launching.
No owner reviews yet — be the first to share your experience with this boat.
What is the Antrim 20's sail area to displacement ratio?
The Antrim 20 has a Sail Area to Displacement ratio (SA/D) of 29.69. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Antrim 20's comfort ratio?
The Antrim 20 has a Ted Brewer Comfort Ratio of 9.75. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Antrim 20 safe for offshore sailing?
The Antrim 20 has a Capsize Screening Formula value of 2.61. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Antrim 20?
The theoretical hull speed of the Antrim 20 is 5.61 kn knots, calculated from its waterline length.
How much does a Antrim 20 weigh?
The Antrim 20 has a displacement of 1,850.00 lb and a length overall (LOA) of 20.42 ft.
Who designed the Antrim 20?
The Antrim 20 was designed by Jim Antrim, first built in 1982.