Sonata 6.7

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The Sonata 6.7 is a small trailerable sailboat designed by American Gary Mull and first built in 1986. Production has ended. Sonata Yachts of Australia built 40 examples starting in 1986.

The boat is a fiberglass monohull with a fixed fin keel and an internally mounted spade rudder. It weighs about 2,544 pounds (1,154 kg) and carries 952 pounds (432 kg) of ballast. The standard keel draws 4.92 feet (1.50 m). A lifting keel version was also offered.

Dimensions are: length overall 21.98 feet (6.70 m), length at waterline 19.36 feet (5.90 m), and beam 8.20 feet (2.50 m).

The Sonata 6.7 has a fractional sloop rig. The total sail area is about 224 square feet (20.83 m²), with 128 square feet (11.93 m²) of mainsail and 95.74 square feet (8.90 m²) of jib/genoa. Foretriangle height is 24.74 feet (7.54 m), base 7.74 feet (2.36 m); mainsail luff 27.10 feet (8.26 m) and foot 9.48 feet (2.89 m).

The design yields a hull speed of about 5.9 knots (11 km/h).