August 2018

15-04 Wing Rear Spars Finished!

Inner Aileron Bracket Attachment – SB 16-03-28 I worked on the L & R spars at the same time, so once set for a given rivet size & location, the squeezer could be used for…


15-02 Riveting Aileron Brackets

Outboard Aileron Brackets Before the outboard aileron brackets can be riveted together, the bearings COM-3-5 have to be inserted into the W-1013A’s.  As advised in the manual, I used 7/16″ and 9/16″ sockets to press…


15-04 Riveting Rear Spar Doubler Plates

After all the prep comes the fun of putting it all together. There are lots of holes in the rear spar doublers that are not riveted at this stage … rib attachment holes, outboard aileron…


Rear Spar Priming

Of course priming begins by using Maroon Scotchbrite to lightly scuff, then by degreasing with Acetone.   Spraying The spars are quite long, so I ended up fitting them diagonally across my spray booth. The…


15-04 Rear Spar Machine Countersinking & Dimpling

The #40 rear spar flange holes are machine countersunk where they coincide with the doubler flanges. I clecoed the doublers in place in order to provide firm support for the countersink pilot, ensuring accurate machining….


15-04 Rear Spar Final Drilling

Some of the holes in the rear spar are final drilled #30, where they coincide with the ribs, W-00007B & W-1007C doubler plates. Also where the W-1013 Inner Aileron Brackets attach. First of all I set to and…


15-03 Rear Spar Doublers

The doubler plates need to be clamped securely in the correct postion on the rear spar and then match drilled. I used my cordless drill and the drill reflection to maintain perpendicular holes. Pushrod Holes…


15-02 Inboard Aileron Brackets

Service Bulletin SB16-03-28 When you get to page 15-02 you have to remember that there is a Service Bulletin (SB), which completely changes the way the inboard aileron bracket is fabricated. This is to prevent…


Carpentry! Wing Stands

Now that the ribs are attached to the spars, I decided it was time to make a wing stand so I can  get them off the workbenches & store them safely. I copied other examples…


14-07 Wing Ribs Riveted to Spar

We used a 10” Rivet Set to do the rib front flange/spar web riveting. This is because I wanted to put the Manufactured Head on the rib flange, being the thinner material, and the long…