Mart,
Wee-wa: Is a 'small washout'. It happens when the pilot grabs the big stick between his legs and pushes it forward.
Wee-wee: Is a big washout. It happens when the pilot grabs the small stick between his legs and pushes it forward.
More information:
Wee-wa: A term used by Frank Robinson. The following is an assumption of what it means:~
(small washout) An incident of acceleration cross-coupling. An off-axis tilt that is experienced by the rotor disk as the disk is in the process of on-axis tilting. I.e. during a downward motion of the front of the disk, the angle-of-attack at the front of the disk is increased. This causes the disk on the retreating side to be higher than the height of the advancing side.
Wee-wee: