Forward-swept wings (\Lambda < 0) suffer primarily from which severe aeroelastic challenge compared to aft-swept wings?

(A) Static aeroelastic wing divergence at lower dynamic pressure

(B) Severe tip stall at low speeds

(C) Inability to mount engines under the wing

(D) Total loss of aileron control authority

Answer Key:

A

### Solution: Forward sweep causes aerodynamic wash-in (wing twist increases angle of attack under upward bending), leading to static aeroelastic divergence at relatively low airspeeds unless tailored with composites. Correct: A.

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