I don't have a lot to show for my weekend.  Friday, I went to renew my 3rd class medical.  WooHoo, I am good for another 2 years.  Saturday, Tami conned me in to do some shopping in Omaha.  WOW was that expensive.  Then there was Sunday....  I worked on finishing up odds and ends on the left flap.  For some reason, I was not super motivated today, so I didn't make giant leaps forward here.

I have been kind of dreading drilling the flap hinge.  I guess the last hinge I drilled (trim tab in the empennage), I wasn't all that happy how it turned out.  I ended up reviewing Dan C's experience with the flap hinge.  He had drilled the flap hinge to close (i.e.: the "eyes" of the hinge were placed to close to the flap spar and he barely made minimum edge distance on the hinge when drilling the wing side of the hinge.  I took his advice and marked the hinge made a line 9/32" from the edge of the hinge (measuring from the opposite side of the eyes).

The hinge is fairly flimsy until you get a few holes drilled and cleco's inserted.  I lined up the line I drew on the hinge and placed it in the center of the rear spar lower flange holes.  I used a few cleco clamps to hold everything in place while I drilled the #40 holes.

I am about half way through drilling the hinge.  It all lined up great.  When I got done with drilling the hinge, I left the hinge clecoed to the spar and then countersunk the spar lower holes to make room for the dimples on the lower skin.

The rest of my time today was spent drilling any remaining odds and ends I didn't get to yet, deburring what felt like 500 holes, and broke out the c-frame to dimple the flap skins.

I got everything on the left flap reading for priming and am going to wait until I have the right flap ready for priming and then do both flaps at the same time.  I almost showed ambition in that I broke out the parts for the right flap, but decided to call it an early night tonight. 

Tami and I are contemplating flying out to the Black Hills for the upcoming Labor Day weekend, so I spent some time looking at density altitude graphs for take-off and landings.  Flying into Sturgis, the elevation is around 3200' and this weekend is predicted to be cool, so I think the Cherokee ought to be able to handle their 5100' paved runway.  We'll see how this week at work goes....