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Sail components include the features that define a sail's shape and function, plus its constituent parts from which it is manufactured. A sail may be classified in a variety of ways, including by its orientation to the vessel (e.g. fore-and-aft ) and its shape, (e.g. (a)symmetrical , triangular , quadrilateral , etc.).
A warship propelled by oars with a sail for use in a favourable wind Galliot Name refers to several types of sailing vessel, usually two-masted Gunboat Various small armed vessels, originally sail and later powered Hydrofoil A ship whose hull is fitted underneath with shaped vanes (foils) which lift the hull out of the water at speed. Ironclad
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Lift on a sail, acting as an airfoil, occurs in a direction perpendicular to the incident airstream (the apparent wind velocity for the headsail) and is a result of pressure differences between the windward and leeward surfaces and depends on the angle of attack, sail shape, air density, and speed of the apparent wind.
Defined by sail plan. All masts have fore-and-aft sails. Schooner: fore-and-aft rigged sails, with two or more masts, the aftermost mast taller or equal to the height of the forward mast(s) All masts have square sails. Brig: two masts, square rigged (may have a spanker on the aftermost) Full-rigged ship: three or more masts, all of them square ...
Sails may be made from a combination of woven materials—including canvas or polyester cloth, laminated membranes or bonded filaments, usually in a three- or four-sided shape. A sail provides propulsive force via a combination of lift and drag, depending on its angle of attack, its angle with respect to the apparent wind. Apparent wind is the ...
A lug sail is an asymmetric quadrilateral sail suspended on a spar and hoisted up the mast as a fore-and-aft sail. A mizzen sail is a small triangular or quadrilateral sail at the stern of a boat. A steadying sail is a mizzen sail on motor vessels such as old-fashioned drifters and navy ships (such as HMS Prince Albert ).