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Rudder. A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, airship, or other vehicle that moves through a fluid medium (usually air or water). On an airplane, the rudder is used primarily to counter adverse yaw and p-factor and is not the primary control used to turn the airplane.
An inboard rudder has a stock which passes through a gland in the hull, with the structure of the hull continuing towards the stern above the rudder. A spade rudder is hinged solely on the stock and has no lower bearing to help take the loads. Other rudder types may be hinged on an extension of the keel or on a skeg. Rudders may be balanced, by ...
Golden Hind was a galleon captained by Francis Drake in his circumnavigation of the world between 1577 and 1580. She was originally known as Pelican, but Drake renamed her mid-voyage in 1578, in honour of his patron, Sir Christopher Hatton, whose crest was a golden hind (a female red deer). Hatton was one of the principal sponsors of Drake's ...
Visitors going to see matinees at Universal Cinemark between 11 a.m. and 6 p.m. may park free with the purchase of two movie tickets. You have to pay for parking up front but get reimbursed.
Aircraft flight control surfaces are aerodynamic devices allowing a pilot to adjust and control the aircraft's flight attitude. Development of an effective set of flight control surfaces was a critical advance in the development of aircraft. Early efforts at fixed-wing aircraft design succeeded in generating sufficient lift to get the aircraft ...
Typical trim tabs on aileron, rudder and elevator. Trim tabs are small surfaces connected to the trailing edge of a larger control surface on a boat or aircraft, used to control the trim of the controls, i.e. to counteract hydro- or aerodynamic forces and stabilise the boat or aircraft in a particular desired attitude without the need for the operator to constantly apply a control force.
The Kitchen rudder is the familiar name for "Kitchen's Patent Reversing Rudders", a combination rudder and directional propulsion delivery system for relatively slow speed displacement boats which was invented in the early 20th century by John G. A. Kitchen of Lancashire, England. It turns the rudder into a directional thruster, and allows the ...
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 ...