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Which unstable aircraft behavior arises when excessive sideslip occurs at high angles of attack?

A)Dutch roll oscillation develops
B)Phugoid mode becomes amplified
C)Adverse yaw tendencies diminish
D)Spiral divergence stabilizes flight

💡 Explanation

A Dutch roll oscillation develops because yawing motion induces rolling, driving the aircraft further from equilibrium via inertial coupling. Pilots call this "adverse yaw". Therefore, Dutch roll emerges rather than the alternatives which assume more stability or insufficient control authority.

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