Originally Posted by
Alex Whittingham
I'm about to brief a 3D animator to show dutch roll building up on a typical airliner (probably B737) at high TAS. My question is, with the yaw stabs out, as the dutch roll builds will the control surfaces deflect? My guess is not.
As part of post C check air tests I'm required to incite a dutch roll with the yaw damper disengaged and then engage it to ensure it damps correctly.
There is no control surface deflection until the YD is engaged.