Aerodynamics - Instability

3 important questions on Aerodynamics - Instability

What is Dutch Roll

Oscillatory instability associated with swept wing aircraft

A combination of yawing and rolling motions

How to dampen Duthc Roll

Aileron input, not rudder. Rudder will worsen the Dutch Roll

Stability at higher altitudes

Longitudinal, lateral, directions, and oscillatory stability in general are redcued at high altitudes

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