Why do airplanes need runways?
Show answer & explanation
Answer: Wings need speed to create lift
Wings need speed to create lift ✓ — Correct! Airplane wings generate lift only when air flows over them fast enough. Runways allow planes to accelerate to the speed needed (typically 150-180 mph for commercial jets) for wings to create enough lift to overcome gravity. Longer runways = more distance to build speed.
Weight must be reduced gradually — Wrong. Weight doesn't reduce during takeoff. Runways give planes space to reach the speed needed for wings to generate lift.
Pilots practice control skills — Wrong. Runways aren't for practice. They provide the necessary distance to accelerate to flight speed before running out of ground.
Go deeper: Lift (force)
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