To: Helo Teacher
The way this condition has been described to me it is the jamming or loss of servo boost under certain maneuvering conditions. For the life of me I don’t know where the term transparency came from to describe this condition but then again maybe someone else can.
To me it is a design defect in the hydraulic system that should be corrected by Aerospatial because under certain emergent conditions if the “transparency” manifests itself the helicopter could crash but then again that is what you are looking for.