I searched for this topic before I posted the question. I remember reading about this a long time ago, but I can't recall the solution.The rudder on almost all of my add on planes twitches, or sort of flaps in the wind, when the plane is setting still, or very close to still. I have the lastest registered version of FSUIPC and I have the Rudder spike elimination on. I have a Logitech Wingman USB Force Feedback Joystick, and a set of CH pedels and CH Yoke (USB). I do not leave them connected at the same time. The problem manifest with both control setups.Can someone help me out of the tail jitters?Dennis Mitchell

Dennis, Turn off the Rudder Damper switch and the twitch should stop.Terry

Does anyone know how to turn off the Rudder Damper in Robert Probst's 727 Panel? I do not see a Yaw Damper switch.Is there a setting in the panel.cfg I cat set?Dennis

Tried Ctrl+D ??

I sometimes have that issue too