Also found in: Thesaurus, Encyclopedia, Wikipedia.
A movable airfoil, especially a rudder, aileron, or elevator, used to control or guide an aircraft, guided missile, or rocket.
(Aeronautics) a movable surface, such as a rudder, elevator, aileron, etc, that controls an aircraft or rocket
any movable airfoil, as a rudder, flap, or aileron, for guiding or controlling an aircraft or missile in flight.
Switch to new thesaurus
|Noun||1.||control surface - a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight|
aileron - an airfoil that controls lateral motion
device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
elevator - the airfoil on the tailplane of an aircraft that makes it ascend or descend
horizontal stabiliser, horizontal stabilizer, tailplane - the horizontal airfoil of an aircraft's tail assembly that is fixed and to which the elevator is hinged
leading edge - forward edge of an airfoil
rotary wing, rotor blade - the long airfoil that rotates to provide the lift that supports a helicopter in the air
rudder - a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes
spoiler - a hinged airfoil on the upper surface of an aircraft wing that is raised to reduce lift and increase drag
spoiler - an airfoil mounted on the rear of a car to reduce lift at high speeds
stabilizer - airfoil consisting of a device for stabilizing an aircraft
trailing edge - the rear edge of an airfoil
vertical tail - the vertical airfoil in the tail assembly of an aircraft
wing - one of the horizontal airfoils on either side of the fuselage of an airplane