Which wing component is used to increase lift by deflecting the trailing edge at low speeds?

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Multiple Choice

Which wing component is used to increase lift by deflecting the trailing edge at low speeds?

Explanation:
Flaps are the mechanism that increases lift at low speeds by changing the wing’s shape. When the trailing edge is deflected downward, the wing becomes more curved (increased camber) and its effective surface area grows slightly. This raises the coefficient of lift for a given airspeed and angle of attack, so the wing can generate more lift at slower speeds—crucial for takeoff and especially landing. The trade-off is increased drag. The other components—spar, rib, and skin—provide structure and form but do not deflect the trailing edge to increase lift.

Flaps are the mechanism that increases lift at low speeds by changing the wing’s shape. When the trailing edge is deflected downward, the wing becomes more curved (increased camber) and its effective surface area grows slightly. This raises the coefficient of lift for a given airspeed and angle of attack, so the wing can generate more lift at slower speeds—crucial for takeoff and especially landing. The trade-off is increased drag. The other components—spar, rib, and skin—provide structure and form but do not deflect the trailing edge to increase lift.

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