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as a sport, the art of navigating a sailboat for recreational or competitive purposes. Racing Classes
There is no single "yacht type" of boat, rather many types that include sloops, yawls, catamarans, and ketches.
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(of a vessel), a flexible panel or sheet of canvas or some other material, used to convert wind energy into propulsion energy. The wind exerts direct pressure when it blows at right angles to the sail or creates aerodynamic lift when the airflow moves along the sail. Sails are distinguished according to shape as square sails, which may be rectangular or in the form of an equilateral trapezoid, and fore-and-aft sails, which may be three-or four-cornered. Canvas sailcloth, synthetic fabrics, stiff matting, and other materials are used to make sails. Fully battened panels are used for the sails on junks. Each sail has its own name according to its position on the vessel. Sails are also used on iceboats.
[Listed in CACM 2(5):16, May 1959].