@ Eckhart : here are some technical infos about the rudder :
- every moving axis is ballbearing mounted
- 1 Hall effect sensor for the rudder , 1 cermet pot for each brake
- 2 strong traction springs for the rudder , dampered by 2 double-action ( push-pull ) linear oil dampers
- 2 linear gas dampers for the brakes
- 2 kinds of soles : Luftwaffe soles , or modern jets soles (Jaguar

)
- very rugged engineering
http://www.tarmac-aces.com/