Tuesday, July 9, 2019

Drilling the aileron trim bracket - 2 hours


Next I need to drill the mounting bracket to the F-716 ribs. In my initial fit, I had aligned the mounting bracket to the edge of the seat pan. Not good. After double checking, the holes would not be centered in the bracket. So I went to work on figuring out centering the trim bracket between the two mounting holes in the seat pan.

Once I was satisfied that I would have equal edge distance on both ends. I drilled one hole...Aligned it and clamped it.

Match drilled the second hole...Looking good. The lower two holes of are easily drilled from dimensions.
 
Now...getting these match drilled to the F-716 ribs took a bit of effort. Since I want this to be exact. The best I could figure was to make an exact template and this can be cleco’d on top of the ribs, allowing me to drill from the top. Worked like a charm.

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