How a Wing Creates Lift
Airflow and pressure differences
0:52 · 720p · With AI narration and captions. This sample was made with the same system as this service.
Narration (full text)
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How a Wing Creates Lift
Airplanes can fly because their wings create an upward force called lift.
Wing Cross-Section
A wing's cross-section is called an airfoil. It meets the airflow at a small tilt, called the angle of attack.
Bend Air Down
The wing bends the oncoming air downward. In reaction, the air pushes the wing up.
Low Above, High Below
Meanwhile, the air above flows faster and its pressure is lower, while the pressure below is higher. That difference is lift.
Speed & Angle
Lift gets stronger as the speed increases, and as the angle of attack increases.
Too Steep: Stall
But if the angle of attack is too large, the flow over the top breaks away, and lift drops suddenly. This is a stall.
Pressure Lifts the Wing
A wing bends the airflow downward, and the pressure difference between top and bottom lifts the plane.
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