Quote from
ASFKAP:
Don't most modern A/C have parallel type YDs, ie the pedals don't move when the yaw damper actuator actuates the rudder.......
Or is my memory failing me?
I fear it is the latter...
; I know the feeling!
To illustrate the point, will have to resort to 707s, I'm afraid. In the 1970s and early '80s, my company operated a medium-sized fleet of B707-320Cs. All bar one of them were 'Advanced' versions, with a single SERIES-type yaw damper on the rudder [The VC10 had 3 - one per rudder!].
As you meant to say, series yaw damper-generated rudder movements do not feed back to the rudder pedals; parallel ones do.
One of our 707s, however, had an old-fashioned PARALLEL-type yaw-damper. I was once unfortunate enough to position as passenger LGW-NBO, and it rolled gently from side to side all the way...
Never did the 747, sorry to say. But as they dated from 1969 (?), early ones MIGHT have had parallel dampers.