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# How is it that an airplane can fly?

Question #69562. Asked by ohlavash. (Aug 10 06 1:56 PM)

smartie806

An aircraft flies due to aerodynamic reactions that happen when there is relative motion between air and a wing.
http://en.wikipedia.org/wiki/Airplane#Flight_.28lift.29

 Aug 10 06, 2:45 PM
zbeckabee

The amount of air diverted by the wing is proportional to the speed of the wing and the air density. The vertical velocity of the diverted air is proportional to the speed of the wing and the angle of attack. The lift is proportional to the amount of air diverted times the vertical velocity of the air. The power needed for lift is proportional to the lift times the vertical velocity of the air.

http://www.allstar.fiu.edu/aero/airflylvl3.htm

 Aug 10 06, 4:12 PM
What-A-Mess

Simple Airfoil.

http://www.reference.com/browse/wiki/Airfoil

http://www.reference.com/browse/wiki/Airfoil

 Aug 10 06, 5:28 PM

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