Designed by renowned British naval architect Angus Primrose and built by John Baker in the UK, this distinctive 28-footer represents thoughtful British cruising boat design from the late 1970s. With only 80 hulls completed during its six-year production run from 1976 to 1982, the Seal 28 has become a sought-after classic among discerning sailors. The boat's most notable feature is its lifting keel configuration, which reduces draft from 5 feet to allow exploration of shallow waters and easier trailer transport, while maintaining excellent sailing performance when fully deployed. This versatility makes it particularly well-suited for coastal cruising and gunkholing in areas with varying depths. With a displacement of 7,200 pounds and 2,900 pounds of ballast, the Seal 28 offers reassuring stability and seakindly motion. The masthead sloop rig carries 310 square feet of sail area, providing spirited performance while remaining manageable for a small crew. Her fiberglass construction ensures durability, while the modest beam of 9.83 feet creates a easily driven hull form capable of 6.27 knots hull speed. The combination of Primrose's proven design expertise and the boat's practical lifting keel makes this an excellent choice for coastal cruising couples seeking a seaworthy, versatile yacht.
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What is the Seal 28's sail area to displacement ratio?
The Seal 28 has a Sail Area to Displacement ratio (SA/D) of 13.34. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Seal 28's comfort ratio?
The Seal 28 has a Ted Brewer Comfort Ratio of 22.34. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Seal 28 safe for offshore sailing?
The Seal 28 has a Capsize Screening Formula value of 2.04. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Seal 28?
The theoretical hull speed of the Seal 28 is 6.27 kn knots, calculated from its waterline length.
How much does a Seal 28 weigh?
The Seal 28 has a displacement of 7,200.00 lb and a length overall (LOA) of 28.00 ft.
Who designed the Seal 28?
The Seal 28 was designed by Angus Primrose, first built in 1976.