You know when planes try to land and a problem arises, how have they got enough lift to immediately take off again? Isn’t that the purpose of the run up to taking off (normally)?
In: Engineering
Airspeed. As you’d expect they already have lots of momentum while ‘rolling’ down the runway so they need less room to accelerate back up to a high enough speed to lift off(by having enough air moving quickly enough over the wings to create more lift than there is gravity pulling the plane down)
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