Questions tagged [dutch-roll]

A type of periodic out-of-phase rolling and yawing motion, most common with swept-wing aircraft at high altitudes and airspeeds; generally self-limiting and not a threat to the aircraft itself, but extremely good at making its occupants airsick.

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What is the dutch roll filter? How does it work?

Some airplanes have a dutch roll filter for the "yaw damper." What is the dutch roll filter? When is it used? Is it ever required for certification or operation? How does it work?
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How do Airbus and Boeing aircraft handle Dutch roll?

I have some homework about Dutch roll filters. Dutch roll is something that is corrected by yaw damper systems, but I would like to know the different ways Boeing and Airbus deal with the issue of ...
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Can having too small of a roll or yaw stiffness destabilize the dutch roll mode?

For a dutch roll mode, can having too small of a roll or yaw stiffness destabilize it? I would think not because you want a lower value to maintain it?
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What makes spiral instability less harmful than Dutch roll?

The FAA Pilot's Handbook of Aeronautical Knowledge says on page 5-20: Because it is more desirable for the aircraft to have “spiral instability” than Dutch roll tendencies, most aircraft are ...
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Why is the “Dutch” roll called so?

Why is the "Dutch" roll called so? When did this name enter common usage, and what is its origin? Please cite sources if possible!