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After savoring the taste of success on completing my last fuel tank for this project, I began finishing up on other wing things I need to get done.
If you followed my previous flap entries, you know that I dimpled the top and the bottom of the flap spar. Well, the BOTTOM is supposed to be countersunk so that you can rivet the flap hinge to it. So today, I spent some time re-doing the flap spar.
So I didn't screw the spar up a second time, as soon as I got the orientation figured out, I Sharpie marked the bottom as "COUNTERSINK" and the top as "DIMPLE". It worked, as I didn't make the dimple mistake twice.

Before I actually countersunk the flap spar, I drilled the flap hinge to the bottom spar. To get alignment of the hinge on the spar, I measured 9/32" from the edge of the hinge and drew a line. Then when clecoing the hinge to the spar, I just centered the line in the #40 holes in the spar.

I didn't get a lot of pictures of the rest of the days work because it was just deburring, dimpling, etc. I was able to con Tami into coming out and helping me scrub the flap parts and wing skins with Alumiprep and Alodine.

Flap and pitot mast parts hanging after an alodine bath.

And the wing walk doubler...

And last, but not least, is the flap skins.

I got all the parts alodined and ready for a priming session tomorrow.... Not exciting progress, but it all has to get done before I can move onto something else. |