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Which instability arises due to resonant wavelengths in aircraft?

A)Aeroelastic flutter spontaneously increases deflection
B)Boundary layer separation increases drag
C)Compressibility causes Mach tuck
D)Vortex shedding stalls control surfaces

💡 Explanation

Aeroelastic flutter induces instability because energy transfers from airflow into structural vibration; a positive feedback loop. Therefore, deflection increases beyond safe limits rather than boundary layer effects altering drag which happens due to viscosity.

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