Roll Servo, etc.

13 June 2006: two of us, 4 hours each. Having received the roll servo from Tru Trak, we went ahead and test fit it to the spar. Tru Trak supplies a very nice mounting kit for the RV-7. The kit replaces one of the bellcrank mounting angles with a somewhat larger one that holds the servo. The servo is then attached to the bellcrank with a little pushrod, which is supplied.



The kit comes with professional drawings and mounting hardware, so there is very little to do except position and drill a hole in the bellcrank web to attach the pushrod. The only minor difficulty is that TruTrak's drawings don't show the mounting hardware. Naturally, the three of us each had a different view about how the hardware should be utilized! It's all pretty obvious, except the washer placement. A phone call to Tru Trak eventually cleared this up, once we found the right person to ask. The summary answer is that the large washers should be used to contain the rod end bearings if for some reason the bearing should ever break free of its enclosure. Once you have that clue, the rest is pretty obvious.

Other items for this evening: we reamed the holes in the bellcranks and fuel cover nutplates, and fabricated the angles that attach to the sides of the brake pedals, and hold the mounting hardware that attaches the pedals to the steel rudder pedal weldment.