what is airfoil or Aerofoil

Started by MikeLigalig.com, April 30, 2012, 07:05:39 AM

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MikeLigalig.com

April 30, 2012, 07:05:39 AM
airfoil
   
also spelled  Aerofoil,  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 low-drag, low-lift airfoils that are thin and streamlined. Slow aircraft that carry heavy loads use thicker airfoils with high drag and high lift. - source: Britannica Encyclopedia
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