Used an 8? level across the cap strips of the ribs to help me determine the wingtip is flush with the wing.

Used a 4? level across the leading edge. Brought the wingtip flush with each straight edge. Clamped wingtip in place. Using the outboard edge of the No 10 cap strips I measured 5 mm from the cap strip which was actually the largest deviation from the cap strip. I then connected all the dots using a ruler and a reinforced cut off wheel made a rough cut and snuck up on my cut line with sandpaper. I now have a much straighter edge. I am going to repeat the process on the bottom edge and start making plans for final fitting.

I have the photo feature quasi working, it seems to only allow attachment of one picture. Regardless the photo that is attached is a faring on a PC12. I would like to know if anyone has used countersunk washers with flat head screws to attach the wingtip. I eyeballed the thickness of a washer and I wonder if it is thicker than the fiberglass. I also believe I would need to have wider attachment strips to allow adequate edge margins on the mounting strip and wingtip. The photo appears to be a No 8 screw and there is approximately 5/8 to 3/4? center to edge distance.

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