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Bernoulli's Principle

the statement that an increase in the speed of a fluid produces a decrease in pressure and a decrease in the speed produces an increase in pressure
Wind has nothing to do with how an airplane stays in the air. In actuality, an airplane flies better on calm days than on windy ones! It is the act of lift, weight, thrust and Bernoulli's principle (though this principle isn't all that true, since airplanes are able to fly upside down and a model airplane with non-airfoil shaped wings can stay in the air just fine) that determines how an airplane is able to stay in the air.
an airplane stays up in the air by the pressure above and below the wings...
There is actually more than one force that enables an airplane to stay in the air: that is lift, weight and thrust. Weight has to be less than the force of lift and thrust combined to both get the airplane into the air and keep it in the air.

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Q: What keeps an airplane up in the sky?
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