Worked on drilling the aileron spar reinforcement plates and brackets. After weeks and weeks of mind-numbing wing work, this was kind of tricky. There are three different size holes in each end, so you have to be awake. I deburred everything after that.
Back-riveted the stiffeners onto the second aileron skin. Used the control surface bender from the empennage to close up the ailerons. I got the skins to bend within an inch of the spar, but couldn’t get them to bend any more. It looks close enough. The radius of the bend is right in the range specified by the instructions, 3/32″ to 1/8″.
The next step is to back-drill the spar to the reinforcement plates. But it’s not super clear what hole should be drilled to what size. There are 1/8″ rivets, 3/32″ rivets, and bolts on each end. I spent about an hour studying the drawing and the instructions figuring out how all the parts go together. I decided to wait until tomorrow before drilling. I want to look at everything again when I’m not so tired.
Finishing up the wing is waiting for some riveting assistance, so I went back to working on the ailerons. I dimpled the stiffeners holes on both skins and back-riveted the stiffeners onto one of them.
Primed aileron stiffeners. It was threatening to rain all day and of course started right as I was finishing the priming session. I ran everything inside. I’ll touch up a few parts, but almost all of them turned out fine.
I spent most of the day installing a fan for the garage attic. Since installing the insulation in the garage ceiling for warmth last winter, it’s also kept the garage much cooler on hot days. The problem is that we store stuff in the garage attic, and it now gets well over 100 up there. Thus, I’m putting in a fan that will turn on when the temp gets too hot and kick the hot air right out the side of the house.
Deburred the rest of the holes in the aileron skins for the stiffeners. I mainly did this just to clear the ailerons off the bench. I’ll continue working on them later.
Deburred more of the ailerons.
Deburred some of the ailerons.
Deburred and dimpled aileron stiffeners.
Drilled all of the aileron stiffeners to the skins.
Deburred the aileron stiffeners with the Scotch-brite wheel.