Category: Wings

Today I started by cleaning up the last few angles for the right spar, then I swap the two spars on the bench so that I can start up drilling the left spar. I setup the drill press with a new #30 drill bit and proceeded to open up all of the holes at the root end of the spar. I completed about 1/2 of the holes at the root end where the various web doublers are located.

After deburring the main spar web I proceeded with the dimpling. I used my new squeezer for most of the dimples and then used a rivet, bolt and hammer to complete the last few. Next I continued the cleanup of the other web sections and then moved on to the spar caps.

I started with a bit of cleanup today and then I moved on to completing the countersinking for the counter sunk screws. After setting up my microstop I completed the countersinking of the 1/8 inch center web and the single hole in the top spar cap. With all of the drilling and countersinking complete I moved on to deburring.

Tonight I completed the up drilling on the right wing spar. Now I need to debur, dimple, alodine and rivet.

I looks like one more night and I should have all of the drilling of the spar finished.

Today I completed all of the up drilling at the root end of the spar and all of the holes along the top spar cap. I just have the holes through the web along the lower edge of the spar to complete.

Today I continued up drilling to both #21 and 3/16". It seems to be taking me a long time. I’m sure if I just drilled by hand it would go quicker but I like the idea of using the drill press to get nice square holes. The holes are actually round it’s just that they are at 90 degrees to the surface I am drilling through.

Tonight I’m working on up drilling the wing spars to #21.

I started by marking all of the holes that need to be counter sunk in the 1/8 web. Next I setup the microstop in the drill press and proceeded to drill the counter sinks. I started drilling fairly slowly but I discovered that it was better to drill quick.