main-trysail ketch

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• Mast (sailing) — Sails on a small ship as seen from below The mast of a sailing vessel is a tall, vertical, or near vertical, spar, or arrangement of spars, which supports the sails. Large ships have several masts, with the size and configuration depending on the …   Wikipedia

• Sail — A sail is any type of surface intended to generate thrust by being placed in a wind mdash;in essence a vertically oriented wing. Sails are used in sailing.History of sailsThe ships built at around 10,000 BC were just crude log rafts or dug out… …   Wikipedia

• Course (sail) — Illustration of the foremast of the Stavros S Niarchos. The course sail is the lowermost sail. In sailing, a course is the lowermost sail on a mast. This term is used predominantly in the plural to describe the lowest sails on a square rigged… …   Wikipedia