Airplanes stay in the air by having a curved blunt shaped wing at the front of the wing and a skinny end. By doing this the airplane has more air going over the top of the wing than the bottom, thus creates lift with a vacuum effect.
Answer
Actually the same amount of air flows over and under the wing. It is the SPEED of the air that produces the lift. When the air speeds up, the pressure drops, thus creating lift from the under-side of the wing.
The Speed of the air flow will vary, depending on the type of wing. However, some distance away from the wing and the speed of the air is the same on both sides of the wing.
above - sky as below - ground above - airplane as below - subway
That's true for the airplane's wings, when the airplane is flying upright.
The air above an airplane wing in flight is at lower pressure than the air below the wing. Hope this helps.
In flight, the air pressure above the wing is less than that below it.
The pressure above the wing be Save comes less than the pressure below the wing.
velocity and the difference in pressure above and below the wings
Low pressure is created over the top of the wing while higher pressure is below the wing which generates lift.
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It's called "lift" and is the difference in air pressure between above and below the wing.