French designer Philippe Harlé created this compact cruiser during the height of the European production boat boom, with Kelt manufacturing 1,300 hulls between 1974 and 1987. At just over 20 feet overall, the 620 maximizes interior volume through a generous 8-foot beam while maintaining respectable sailing characteristics with its fin keel and transom-hung rudder configuration. The masthead sloop rig delivers a healthy sail area-to-displacement ratio of 24.41, providing spirited performance for coastal cruising and weekend adventures. With a displacement of 2,105 pounds and substantial ballast ratio, the 620 offers reassuring stability for a boat this size. The moderate comfort ratio of 11.04 suggests quick motion in choppy conditions, typical of smaller designs prioritizing performance over pure comfort. Built with solid fiberglass construction during an era when French builders were gaining recognition for quality craftsmanship, the Kelt 620 represents practical European design philosophy. The hull's 17-foot waterline length yields a theoretical hull speed of 5.53 knots, making this an ideal choice for sailors seeking an affordable entry into cruising or those wanting a manageable boat for protected waters and near-coastal sailing.
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What is the Kelt 620's sail area to displacement ratio?
The Kelt 620 has a Sail Area to Displacement ratio (SA/D) of 24.41. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.
What is the Kelt 620's comfort ratio?
The Kelt 620 has a Ted Brewer Comfort Ratio of 11.04. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.
Is the Kelt 620 safe for offshore sailing?
The Kelt 620 has a Capsize Screening Formula value of 2.54. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.
What is the hull speed of the Kelt 620?
The theoretical hull speed of the Kelt 620 is 5.53 kn knots, calculated from its waterline length.
How much does a Kelt 620 weigh?
The Kelt 620 has a displacement of 2,105.00 lb and a length overall (LOA) of 20.34 ft.
Who designed the Kelt 620?
The Kelt 620 was designed by Phillipe Harlé, first built in 1974.