any surface, as a wing, aileron, or stabilizer, designed to aid in lifting or controlling an aircraft by making use of the air currents through which it moves.
(US & Canadian) a cross section of an aileron, wing, tailplane, or rotor blade Also called aerofoil
1922, U.S. form of aerofoil.
A structure having a shape that provides lift, propulsion, stability, or directional control in a flying object. An aircraft wing provides lift by causing air to pass at a higher speed over the wing than below it, resulting in greater pressure below than above. Propellers are airfoils that are spun rapidly to provide propulsion. See more at Bernoulli effect, See Note at aerodynamics.
- Air force
the U.S. department consisting of practically all military aviation forces, established July 26, 1947. (lowercase) a similar department in any military organization. (lowercase) (formerly) the largest unit in the U.S. Army Air Forces. (lowercase) a unit of U.S. Air Force command between an air division and an air command. (sometimes lowercase) the military unit of […]
- Air force cross
a decoration for heroism in combat, reserved for U.S. Air Force personnel.
- Air force one
one of several specially equipped and fitted jet airliners maintained by the Air Force for use by the president of the U.S. and designated Air Force One when carrying the president.
the framework and external covering of an airplane, rocket, etc. Contemporary Examples Both a rocket engine with a temperamental record and an airframe of revolutionary design and construction had to be proved safe. Virgin Galactic’s Flight Path to Disaster: A Clash of High Risk and Hyperbole Clive Irving October 31, 2014 The tests took place […]