Prepping & Riveting the Ailerons

June 5th, 8th & 9th  13h

We moved on with the preparation of the ailerons, with the aim to get the ailerons riveted and finished:

  • Drilled the leading edge skin to the aft skin, the spar, the leading edge ribs, the main ribs and the counterbalance.
  • Deburred the leading edge skin, the spar, the leading edge ribs, the main ribs and the counterbalance.
  • Dimpled the leading edge skin, the spar, the leading edge ribs and the main ribs
  • countersink the counterbalance.
  • Primed the leading edge, the main rib, the leading edge ribs and counterbalance.

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All the work went on smoothly. Then it was time to start riveting the ailerons:

  • Riveting the leading edge rib to the counter balance: this had a little bit of tricky access requiring bending the tab of the leading edge rib, but it went on smoothly.
  • Riveting the leading edge rib to the spar.
  • Riveting the top leading edge skin to the spar and the aft skin. Access here was a bit hard, but we made it work with 2 people.
  • Riveting the the main bibs to the aft skin and spar.

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It is exciting to see the ailerons come together pretty quickly.  A little bit more riveting is remaining, and then the ailerons would be done and ready to attach to the wings.

Riveting Stiffeners and Prepping Skeleton

May 31th & June 1st,  13h

I riveted both left and right aileron stiffeners.  It went very smoothly by using back riveting and the results look very good.

Then, I bent both the left and right aileron skins using the same bending tool I fabricated for the empennage.  The bent met all the specs and aileron skin fit pretty nicely with the back spar.

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Afterward, I moved ahead with prepping the skeleton:

  • fabricating the reinforcement plates
  • Match drilling and deburring reinforcement plates
  • Match drilling and deburring the aileron brackets.  These took quite a while to drill and deburr since the material is pretty tick and the access for deburring was not great.  In order to drill #12 holes, I stepped up slowly from #40, so it took many iterations.  Then I had to use a small file to deburr the inside of the brackets.  The results look good
  • Priming the parts.
  • Riveting the reinforcement plates to the back spar and the platenuts.IMG_1262.jpg

Getting close to putting the ailerons together.