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A flap is a high-lift device used to reduce the stalling speed of an aircraft wing at a given weight. Flaps are usually mounted on the wing trailing edges of a fixed-wing aircraft. Flaps are used to reduce the take-off distance and the landing distance. Flaps also cause an increase in drag so they are retracted when not needed.
The wing root fairing of an American Aviation AA-1 Yankee. An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag. [1]These structures are covers for gaps and spaces between parts of an aircraft to reduce form drag and interference drag, and to improve appearance.
The Gouge flap, is a type of aircraft flap, which moves on a track when raised or lowered; in level flight. Invented by Arthur Gouge of Short Brothers in 1936, it allows pilots to increase both the wing area and the chord of an aircraft's wing, thereby reducing the stalling speed at a given weight. This provides benefits including a shorter ...
Slats are high-lift devices typically used on aircraft intended to operate within a wide range of speeds. Trailing-edge flap systems running along the trailing edge of the wing are common on all aircraft. The position of the leading-edge slats on an airliner (Airbus A310-300). In this picture, the slats are drooped.
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 Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System, or JLENS (colloquially, Spy Balloon), [1] was a tethered aerial detection system designed to track boats, ground vehicles, [2] cruise missiles, manned and unmanned aircraft (airborne early warning and control), and other threats [specify].
The course is to be distinguished from the heading, which is the direction where the watercraft's bow or the aircraft's nose is pointed. [1] [2] [3] [page needed] The path that a vessel follows is called a track or, in the case of aircraft, ground track (also known as course made good or course over the ground). [1] The intended track is a route.
A net benefit in overall lift-to-drag ratio is possible if the flap is sized appropriately, based on the boundary layer thickness. [23] The Gurney flap increases lift by altering the Kutta condition at the trailing edge. [5] [9] The wake behind the flap is a pair of counter-rotating vortices that are alternately shed in a von Kármán vortex ...