Continued with the longerons today. Today I first checked the aft angle of both of the longerons before proceeding. The left and right longeron were bent 3.8 degrees inboard per the digital level so I was satisfied to continue.
Then recleco'd the skin and the longeron to the fuselage. Took a bit of time, lots of clecos. Drilling of the longeron proceeded without any problems. Did the same for the other skin. Removed all of the clecos and then started to debur all of the parts. Lots of holes here and deburring each of them took quite a bit of time.
ONE CAUTION: When drilling thru the F-1205A, roll bar attach plates thru the longeron and then thru F-1204F Aft Side Bulkheads, try and position the holes in the aft side bulkhead directly under the hole in roll bar attach plates. If I did this again I would proceed as follows. With the longeron NOT installed, cleco the roll bar attach plate to the aft side bulkhead. With a Sharpie, trace the top of the aft side bulkhead onto the bottom of the roll bar attach plate and extend the marks to the outboard edge of the plate. After installing the longeron and before drilling the two holes, ensure the aft side bulkhead is positioned within your marks.
After deburring, removed all of the machining marks from the longerons, scotchbrited them, cleaned them with acetone and then primed them using Marhyde. Had to open the garage door a bit, lots of fumes. It is 20 degrees outside today!!!
Then, prepped the side skins by cutting off the aft tabs, finished the edges and then attached the nutplates for the opening. Step 5 on 23-06 indicates we are supposed to dimple the nutplate holes around the triangular opening of the side skins flush with the INBOARD side. This is incorrect. They should be installed flush on the outboard side. The nutplates go inside the fuselage per an e-mail from Van's. Did not have any problems dimpling as I had the smaller yoke for the squeezer. The rivet holes AND the holes on the nutplates have to be dimpled.
Broke the bottom and aft edge of skins per the instructions using the Cleaveland edge braking tool that looks like a set of vise-grips. Made 3 passes. Gave me a consistent edge. Riveting of all of these components will have to wait for Friday.
Time - 8 hours
