R3585
Isn't that the sick making one evident in some a/c types in S&L flight when trimmed out controls are disturbed?
A bit like being on a boat traversing the swell at 45 deg.
Yaw, Roll, Pitch and Reverse Yaw, Roll, Pitch. etc. etc.
Remember being on a Jetstream at Cranfield mid '70s which did it quite nicely.