What is Vfe and what limitation does it impose?

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Multiple Choice

What is Vfe and what limitation does it impose?

Vfe is the maximum speed at which the flaps may be extended safely. This limit exists because the flap system and the wing’s lift/drag characteristics with the flaps down are designed to handle only certain aerodynamic loads. Going faster than Vfe while the flaps are extended can stress the flap mechanism or alter the lift and stall behavior in ways that reduce controllability or cause damage. So you must not extend flaps beyond Vfe, and the value can vary with the flap setting (full flaps vs. partial). It’s not about landing gear extension, stall speed, or minimum controllable speed.

Vfe is the maximum speed at which the flaps may be extended safely. This limit exists because the flap system and the wing’s lift/drag characteristics with the flaps down are designed to handle only certain aerodynamic loads. Going faster than Vfe while the flaps are extended can stress the flap mechanism or alter the lift and stall behavior in ways that reduce controllability or cause damage. So you must not extend flaps beyond Vfe, and the value can vary with the flap setting (full flaps vs. partial). It’s not about landing gear extension, stall speed, or minimum controllable speed.

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