Then the rivet holes for the top cowl are located by drawing a line up on the top cowl centered on the holes.
Then after fine tuning the necessary gap between the top and bottom sides (to allow for paint and not get chipping on the edges), I marked the holes
And drilled them.
Then I reinstalled the top cowl and used a piece of scrap to help me maintain a consistent gap all along the hinge line.
This ended up working perfectly and the gap looks great! I can't say that about many of the RV12's I have seen at Osh. Very few took the time to make this look as good as possible. The gaps must be adjusted at this stage because you can't really tweak them once the hinges are riveted on. I will be taking similar pains on the aft side of the top and bottom to ensure nice clean, consistent and straight gaps.
