Post

Right aileron, flap, trailing edge, and left spar

TLDR

  • Assembled left spar
  • Dimpled left bottom skin

Details

Ribs

I spent a few days to put together the left spar assembly. The process is definitely faster given I have gained some experience from building the right spar.

Everything came together quickly.

img Main spar in wraps

The rough sequence:

  • ribs 6 - 1 go in first.
  • Then flap tube
  • Rib 7
  • Aileron tube
  • Then the rest of the ribs
  • Then rear spar channel

img Rib 6 to 1

img Rib 7 and aileron tube

img My favorate helpers!

img Ribs all installed

Skin dimple

The dimpling process is very straightforward. The only thing is that I took extra caution to think about which side is up/down/inside/outside so the dimple direction is correct.

Then the rest is very much just mechanical work.

img Dimple away!

Speical note on rib 9

img Cutting a slot on rib 9

In June 7’s blog I talked about there is a clearance issue between rib 9 and the rivet right next the rib (on the right wing). So the left wing has the same issue.

Following Sling Technical’s suggestion, I decided to cut a slot before even sending rib 9 to the spar. It’s much easier to cut a slot when the part has not been riveted. I first marked the place, then used 1/8 drill bit to create a fill holes. Then I used a flush cutter to cut the slot followed by lots of sand paper polishing.

img A slot is created to acoomodate the rivet that will later go in

Video

This post is licensed under CC BY 4.0 by the author.