I have put a picture of exactly that in the copy for next edition of RCJI.

I saw the installation in Paul Dunkley's excellent GosHawk just last Sunday.

The travel remaining if one servo fails will be reduced but may keep the aircraft flyable and it will not cope with ALL modes of servo failure but I believe the most likely failure is probably a burnt out motor which locks up the servo and I believe the system WILL cope in that mode of failure, albeit with reduced travel.

There is a similar system in the artificial feel system of the VC10 airliner (tanker now) which keeps feel the same even in the event of the failure of one system. Just cant remember exactly how it works !

Regards, David Gladwin