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AEROFOIL
[air-uh-foil] 
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airfoil
[air-foil]
Shaped surface, such as an airplane wing, tail, or propeller blade, that produces lift and drag when moved through the air. An airfoil produces a lifting force that acts at right angles to the airstream and a dragging force that acts in the same direction as the airstream. High-speed aircraft usually employ thin, low-drag, low-lift airfoils; slow aircraft that carry heavy loads use thicker airfoils with high drag and high lift.
Learn more about airfoil with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
See Airfoil
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This article is licensed under the GNU Free Documentation License.
Last updated on Monday June 09, 2008 at 13:46:34 PDT (GMT -0700)
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This article is licensed under the GNU Free Documentation License.
Last updated on Monday June 09, 2008 at 13:46:34 PDT (GMT -0700)
View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation
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