It powers the right hand gear box via a friction clutch. A cross drive clutch can be shut to connect the left hand gear box> It is used for engine starting and maintainance stuff on the ground. Not used in flight.... but that's not important right now.
My question is this...how the bl00dy hell did this get on ebay? First flying gloves, then boots, now this! Is BuffHoon secretly selling us off bit by bit?
PS...you don't happen to have a spare rudder actuator do you?
