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Sailing yacht

A Sailing Yacht (SY or S/Y) is a ship prefix used to identify a vessel that is privately owned and uses sails as its primary means of propulsion. The category of classes sailing yacht is among those officially recognized by the International Sailing Federation. This category includes within it the sailing boats that exceed 30 feet (over 9 meters), so in all respects similar to a yacht. [Sailing yacht. Wikipedia]
Sailing yacht
Sailing yacht, yacht,