Saturday, November 22, 2008

Saturday November 1, 2008: Flaperon Actuation & Pivot Brackets






Wings complete and now on to the flaperons! Don't let the long interlude fool you, I spent time in between 10/18 and 11/1 working on page 18-02 getting the actuation bracket (A1207-L & R) and the pivot bracket (A1206) correctly manufactured. I had to make a visit to Van's to pick up additional AA6-125x1.5x2x10 because of my lack of precision in placing the pivot hole. Now, I don't know if I was being too much of a perfectionist or not, but I didn't want to be flying at 6,000 ABG and wonder if the flaperon was correctly manufactured/assembled.

So, I have 2 sets of actuation brackets, one of which is a better fit. The pivot brackets went well. I followed the example of Marty Santic (http://martysrv12.blogspot.com/2008/09/continuing-with-flaperon.html) who had consulted Jim Cone, etc. (It's a builder's community!) Using the drill press I enlarged the hole as per diagram directions on 18-02, step 2, and then while still in the drill press, put the tap into the press and rotated by hand to ensure that it went in straight. After a number of rotations, I removed the bracket and completed tapping with the bracket in the vice. This worked quite well. All parts then deburred and primed using the Napa 7220 rattle can.

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