"Tarver Engineering" wrote...

So one doesn't use rudder when doing a manual turn as one does on every
other aircraft made?

The YAW damper moves the rudder for the airplane, no human workload is
involved.

The yaw damper does move the rudder, but its function is not to keep the ball
centered. Its function is to reduce yaw oscillations around the [normally 0]
slip angle induced by the current airplane trim. Only if there is an active
3-axis autopilot will the rudder be trimmed automatically. There is NO
automatic rudder trim in the 747-400 except during autoland operations below
1500' AGL.