Thursday, December 23, 2021

Left Wing - Prep Work

The other day I had a goof on the inboard tank rib, and after talking with Van's I've decided to order a replacement.  It'll be a while before the part is available, so I'm shifting gears and moving back to the wings.  The next step for the wings is to take everything apart, deburr edges and holes, prime, and dimple/countersink everything.  I pulled the top inboard skin off first to bevel the edge that gets layered underneath the outboard skin. It's easier said than done to take a file and sandpaper to perfectly good skins that you've spent hours and hours working on!  You can't see it in the picture, but the edge is beveled down to almost a knife edge.


Then came the part that I've been dreading - deburring all of the edges and holes of the skins.  I did figure out an easier way to remove the blue plastic at least.  That stuff is a serious pain!  It's way easier to wrap the first few inches around a rod (used the broom) and roll it off.


Off to the races!  I was hoping I could just hit the holes with Scotch Brite like I had on some other parts, but this material is thicker and stiffer and has a bigger burr on the holes. I have to hit each individual hole with the deburr tool.  I got the wing walk, inboard skin, and inboard stiffener done.