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Lift
 

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      the upward force that keeps an aircraft in flight. Lift is created by the
      aircraft's wings moving through the air.
 


Sentences:
Lift is the force that holds an aircraft in the air.

An airplane must have enough lift so gravity cannot pull it down.

 


Related Links:
What Is Aerodynamics?
How Wings Lift the Airplane
Watch lift in action. Then click the helicopter to learn more.
 

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A drawing of an airplane in flight with the wings outlined in yellow
The wings of an airplane help create the lift that keeps it in the air.
Image Credit: 
NASA
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Page Last Updated: October 9th, 2014
Page Editor: Sandra May