Yaw Dampers Vs. T.A.C.
Hi all,
Sadly another one of my stupid questions:
The way I understand it (I fly only GA aircraft) the yaw damper moves the rudder to prevent unwanted yaw, and to keep the aircraft in balance. Does the yaw damper have a limited authority over the rudder?....if it doesn't have limited authority, how come on say a 767, with an engine failure, rudder application by the pilot is needed...surely if the yaw damper has full authority, incase of assymetric thrust, it would just compensate for this. Secondly is thrust assymetry compensation essentially just a yaw damper with more authority over rudder movement?? Do any other aircraft apart from the 777 have T.A.C.???
Thanks for any answers.
tom.