Autopilot Rudder Authority on 767
Looked in the Boeing 767 Maintenance Manual, but I can't seem to find any value for autopilot rudder authority when Autoland is engaged (and airplane below 1500').
The autopilots control the rudder during autoland with 3 "Directional Autopilot Servos" (DAS's).... which are connected to the rudder Power Control Actuators.
Although the BMM mentions servo synchronization with rudder position up to +/- 25 degrees, it doesn't appear to specify the DAS's authority after engagement.
The Yaw Damper Authority is only 6 degrees left or right, but I would expect the autopilot to have more than this.
Thanks.
Rgds.
Q.
P.S. Failing that, do you have any values for the 747-400 :-)