NationMaster - Encyclopedia: Bilgeboard

A bilgeboard is a lifting foil used in a sailboat, which resembles a cross between a centerboard and a leeboard. Bilgeboards are mounted between the centerline of the boat and the sides, and are amost always asymmetric foils mounted at an angle to maximize lateral lift while minimizing drag. They are most often found on racing scows. Lift consists of the sum (technically the negative product) of all the fluid dynamic forces on a body normal (i. ... A foil is a surface designed to maximize lift (force generated perpendicular to the fluid flow) while minimizing drag (force generated in the direction of the fluid flow) in a given range of conditions. ... Traditional wooden cutter beating. ... A centreboard is a form of removable keel on a small sailing boat or dinghy which can be removed to lower the draught (or depth) of the vessel. ... A leeboard is a lifting foil used by a sailboat, much like a centerboard, but located on the leeward side of the boat. ... In physics, the drag equation gives the drag experienced by an object moving through a fluid. ... A scow, in the original sense, is a flat bottomed boat, often used to haul garbage or similar bulk freight; cf. ...

When sailing, the windward side bilgeboard is retracted into the hull of the boat, so that it produces no drag. The leeward side foil provides the lift to counter the lateral force of the sail, and convert it into forward motion. The bilgeboards are angled so that as the boat heels, or leans under the force of the wind, the leeward bilgeboard becomes more upright, and provides the greatest possible force in the desired direction. Windward is the side of a boat into which the wind is blowing. ... A hull is the body or frame of a ship or boat. ... Leeward is the side of a boat away from the direction where the wind is coming (i. ...

Categories: Sailboat anatomy | Sailing ship elements The purpose of a ships or boats anchor is to attach the vessel to the ground at a specific point. ... A capstan is a rotating machine used to control or apply force to another element, usually linear. ... A centreboard is a form of movable keel on a small sailing boat or dinghy which can be moved to lower the draught (or depth) of the vessel. ... A daggerboard is a type of centreboard used by various sailing craft. ... A permanent covering over a compartment or a hull[1]. On a boat or ship, the primary deck is the horizontal structure which forms the lid of the hull, which both strengthens the hull and serves as the primary working surface. ... A figurehead is a person, usually in a political role, who may hold an important title or office yet executes little actual power. ... forecastle with figurehead Grand Turk Forecastle also spelled focsle (pronounced ) originally meant the upper deck of a sailing ship, forward of the foremast. ... The gunwale, pronounced gunnel to rhyme with tunnel, is a nautical term describing the top edge of the side of a boat. ... A hull is the body or frame of a ship or boat. ... A jackline is a temporary wire strung from a ships bow to stern to which a safety harness can be attached, allowing a crewmember to move over the deck during a storm. ... A leeboard is a lifting foil used by a sailboat, much like a centerboard, but located on the leeward side of the boat. ... foremast, mainmast and mizzen mast Grand Turk The mast of a sailing ship is a tall vertical pole which supports the sails. ... Poopy deck of the Grand Turk In naval architecture, a poop deck is a deck that constitutes the roof of a poop cabin built in the aft (rear) part of the superstructure of a ship. ... A rudder is a device used to steer a ship or other watercraft. ... Wheel of the French carrier Clémenceau. ... For other meanings of the term, see Stern (disambiguation). ... A tiller is a lever attached to a rudder post (american terminology) or rudder stock (english terminology) in order to provide the leverage for the helmsman to turn the rudder. ... A winch is a machine that is used to wind up a rope. ...