Dave's Sonex Builders Log

Today I continued working on the top left wing skin, transfering the #40 holes to the ribs and rear spar.

I worked today at transfering the holes in the wing skins to the ribs and rear spar. I began with the top left wing skin and after finishing this I setup for the bottom left wing skin.

I re-assembled the left wing using clecos in preparation for fitting the wing skins.

Today I picked up another piece of 1×1-1/4 aluminum bar and cut out a new block. I used the old block to drill the 1/4 inch holes and then after fitting I trimmed the bevel.

Today I am starting to work on up drilling the wing attach holes to 3/8 inches. The first thing I needed to do was dismantle the one wing that was still clecoed together. Next I setup the drill press and proceeded to drill the holes up using 9/32, 5/16, 11/32 and 3/8 inch drill bits. Unfortunately, one of my holes had the initial pilot hole off quite a bit so I will need to make one new block and redrill it.

Today I used the vacuum forming method and formed one leading edge skin.

Today I started cleaning up the edges of the leading edge wing skins using my sanding block and scotch bright in preparation for forming the skins. I finished the right leading edge skin and started on the left.