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AAW An acronym for anti-aircraft warfare. aback (of a sail) Filled by the wind on the opposite side to the one normally used to move the vessel forward.On a square-rigged ship, any of the square sails can be braced round to be aback, the purpose of which may be to reduce speed (such as when a ship-of-the-line is keeping station with others), to heave to, or to assist moving the ship's head ...
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.).
Glossary of nautical terms (M–Z) () This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water (mostly though not necessarily on the sea). Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin ...
Forces on sails result from movement of air that interacts with sails and gives them motive power for sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and sail-powered land vehicles. Similar principles in a rotating frame of reference apply to windmill sails and wind turbine blades, which are also wind-driven.
Battleship. A large, heavily armored and heavily gunned powered warship. Bilander. A ship or brig with a lug-rigged mizzen sail. Bireme. An ancient vessel, propelled by two banks of oars. Birlinn. (Scots) Clinker-built vessel, single-masted with a square sail also capable of being rowed. Blockade runner.
Micronesian wa with crab claw sail The gaff-rigged schooner Effie M. Morrissey The earliest European fore-and-aft rigs appeared in the form of spritsails in Greco-Roman navigation, [1] as this carving of a 3rd century AD Roman merchant ship. A fore-and-aft rig is a sailing vessel rig with sails set mainly along the line of the keel, rather than ...
Ship's tender. Donau, an Elbe -class tender of the German Navy. A ship's tender, usually referred to as a tender, is a boat or ship used to service or support other boats or ships. This is generally done by transporting people or supplies to and from shore or another ship. A second and distinctly different meaning for "tender" is small boats ...
A centreboard or centerboard (US) [1] is a retractable hull appendage which pivots out of a slot in the hull of a sailboat, known as a centreboard trunk (UK) or centerboard case (US). The retractability allows the centreboard to be raised to operate in shallow waters, to move the centre of lateral resistance (offsetting changes to the sailplan ...