December 12, 2004 - Flap
OK, it's time to match drill the flap hinge, using the bottom skin holes as a guide. 
I'm pretty excited about it, as you can see. 
All done.  The secret to getting the holes in the right place is drawing a line with the Sharpie where the holes should be.  Then, when the hinge is clecoed to the skin, you make sure the line is visible through the skin holes. 
 
I used the minimum distance of 3/8" between the hinge edge and hole.  This will give me the maximum about of hinge on the wing side to play with, so that I can make sure the flap trailing edge is aligned with the aileron trailing edge. 

I had to fashion these shims and flap brackets. 

Next step was to countersink the bottom of the spar.  Because of the hinge, it can't be dimpled.
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