What Makes a Wing Work?

A wing is shaped and tilted so the air moving over it moves faster than the air moving under it. As air speeds up, its pressure goes down. So the faster-moving air above exerts less pressure on the wing than the slower-moving air below. The result is an upward push on the wing--lift!

Many factors affect the amount of lift a wing creates: the size and shape of the wing, the angle at which it meets the oncoming air, the speed at which it moves through the air, even the density of the air.

How Does Air Pressure Lift an Airplane Wing?
Why Does the Air Speed Up?
What Are Flaps For?


(Rev. 01/03/97)