Noun
a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
Source: WordNetExamples Forces on an aerofoil cross section A fixed-wing aircraft generates forward thrust when air is pushed in the direction opposite to flight. Source: Internet
The blade profile of propellers designed to operate in a ventilated condition is often not of an aerofoil section and is a blunt ended taper instead. Source: Internet
He introduced the use of the whirling arm test rig to investigate the aerodynamics of flight, using it to discover the benefits of the curved or cambered aerofoil over the flat wing he had used for his first glider. Source: Internet
Also, early aerofoil sections were very thin, and could not have strong frame installed within. Source: Internet
Empennage and foreplane main The classic aerofoil section wing is unstable in flight and difficult to control. Source: Internet
His victory was cast into doubt however shortly after the race when Chief Scrutineer Cecil Mitchell found the rear aerofoil not at the regulated height. Source: Internet