mm43,
Thanks for the rudder schematics. Makes perfect sense to me.
bearfoil,
Does that answer your question?
Once hydraulic pressure was gone, the rudder itself will have been free to swing any which way, up to any mechanical limits that still existed. So the photos are useless in that particular respect.
As an ancient ancient... let me remind you of Concorde...
Before engine start, the elevons drooped, and the rudders waved about in the wind.
(Personal photo).
CJ