This has to be one of my favourite designs to date. After working on helicopters for over 28 years, I often wondered how to reproduce the controls to make them realistic. The hardest part that any Helipilot has tried is to replicate the magnetic clutch. 
I have used a stepper motor (standard Nema 17) as the mag brake, Parallel actuator, Beep trim and later on the autopilot drive unit (series Actuator).
 
This is NOT a force-feedback unit because helicopters do not operate like that. The control rods/cables are typically connected to servos. Du