Project: Mike     -     Entry

Feb 07, 2023 2.0 Final empennage parts primed, assembly of trim servo bracket Category: Empennage
Before priming the parts this afternoon, I installed some J hooks into the garage ceiling allowing me to finally get the fuselage longerons and wing kit angle bars as well as the aluminum tube, safely up off the floor for storage. The longerons may be there for a while!

With any luck I have finished priming the final parts for the empennage, in this case the servo and trim tab pieces. The weather cooperated today and made a run at 60*F at one point with reasonable humidity so I was able to paint the final parts in the garage with the door open and everything dried fairly quickly.

Once those were dry, I was able to finish building the trim servo bracket by riveting the two Z brackets in place. As per advice on another builder's log site, I used the 3-3.5 rivets for the two forward most holes and a 3-3 rivet for the trailing hole that has the least clearance from the base of the servo housing. This seems to have worked well with just a sliver of free space between the shop head side of the two aft rivets and the trim servo housing. With that finished I located the 4 screws and locking nuts from the parts bag and installed the servo in its bracket and snugged everything up. Not too tight for now as it may have to come back out at some point. Last thing I did as per the instructions from the trim servo manufacturer was to use a 9V battery to check the continuity of the trim servo motor. Even after all these years of sitting on a shelf, 10+, it is working normally thankfully.

With that finally done, time to turn my attention to the tab bending on the ends of the elevator cutout and the trim tab itself. I have a friend that a few years ago handed my two pie slice pieces of hardwood telling me that I would need these eventually. Finally that time has come so I've already got the forms to use to bend the tabs. Just need to verify these will work for both the elevator cutout and trim tab itself.


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