This motion traces a path resembling a figure-eight pattern when viewed from above, and if left unchecked, can quickly escalate in intensity. When it senses the initiation of a Dutch roll, it automatically commands the rudder to apply a counteracting force.
Dutch Roll Correction Procedures: Essential Steps for Pilots
However, in certain aircraft configurations, these two motions can become coupled in a way that is self-sustaining rather than damping. It is a physically noticeable motion that can be uncomfortable for passengers and distracting for the crew.
The standard method for controlling an aircraft is not to fight the motion with brute force on the controls, but to use yaw damping. Handling and Flight Dynamics Pilots recognize a Dutch roll by the distinct sensation of the aircraft weaving horizontally, even when the control stick is centered.
Dutch Roll Correction Procedures: Step-by-Step Solutions
Directional stability, which aligns the aircraft with the relative wind, is primarily provided by the vertical stabilizer. By the time the aircraft yaws left, the roll has already reversed to the left.
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