What happens if a plane takes off without flaps?

Originally Answered: What happens if a plane tries to takeoff without the main wing flaps deployed? The takeoff uses more runway. The wing will need a higher airspeed to produce the required lift, so it will take longer to accelerate to that speed. No flap takeoffs are sometimes done on purpose with light aircraft.



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The fuselage structure of modern airliners is designed to withstand landings without landing gear. This applies to both runway landings, as well as water ditching (basically landing on water with an aircraft which is not designed to do so).

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Depending on the aircraft, the flap settings are usually between five and fifteen degrees. After liftoff, the wing flaps are retracted completely so that they do not begin to produce drag. Conversely, extending the flaps of the airplane creates a “broken wing,” which increases drag.

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