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control surface

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control surface: see airfoil airfoil, surface designed to develop a desired force by reaction with a fluid, especially air, that is flowing across the surface. For example, the fixed wing surfaces of an airplane produce lift, which opposes gravity.
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control surface [kən′trōl ‚sər·fəs]
(aerospace engineering)
Any movable airfoil used to guide or control an aircraft, guided missile, or the like in the air, including the rudder, elevators, ailerons, spoiler flaps, and trim tabs.
In restricted usage, one of the main control surfaces, such as the rudder, an elevator, or an aileron.
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Another signature feature of the Blackberry was the control surface, which incorporated a small QWERTY keyboard optimised for use with the thumbs alone, and a fascia-mounted tracker ball for navigation, which replaced the side mounted track wheel found on earlier devices.
A Short History of the BlackBerry Smartphone by Neo Nashville / Biological sciences community
The shuttle crew spent part of Friday "checking Discovery's flight control surfaces, which will guide the orbiter's unpowered flight through Earth's atmosphere," NASA said in a statement.
Space shuttle set to return to Earth Saturday by AFP / AFP American Edition
The shuttle crew spent part of Friday "checking Discovery's flight control surfaces, which will guide the orbiter's unpowered flight through Earth's atmosphere," NASA said in a statement.
Space shuttle set to return to Earth Saturday by AFP / AFP Global Edition
 
 
 
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