Dutch Roll

Cub Driver wrote:

I just asked my daughter the blue-water sailor about this. She never
heard of Dutch roll, but thought it perhaps came from the motion of a
round-bottomed boat popular when the Dutch ruled the ocean waves
(think Henry Hudson).

Yes, that's the origin. The Dutch had a need for large
cargo and shallow draft, so Dutch-built ships tended to
perform a pronounced pitch-yaw-roll motion in following
seas. It's the origin of the "Dutch Roll" label used in
aerodynamics.
Todd Pattist
(Remove DONTSPAMME from address to email reply.)
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