21-07/08 Flap Sub Structure

After all the preparation it was finally time to actually start assembling the flaps. I attached the Doublers & Nutplates to the Inboard Rod assembles first.

I was able to use the squeezer for riveting these pieces.


Hinges

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Good old JC5 – much easier than that flipping Proseal : )


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Whoever suggested I make my benches with their tops overhanging enough for clamping – thank you! I have used this constantly to anchor pieces for riveting etc.


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I decided to squeeze the 426’s to set the double flush rivets in the Hinge “joggled” flanges.

Because of the raised portions, I was worried about using a rivet gun. It turned out well, once I’d worked out how to anchor everything.

I put some spacers between the hinges so I could clamp the assembly, and as advised fitted the bolt & bronze spacer in the hole to ensure correct alignment.


Ribs

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Again, the squeezer did the job for most of the rib riveting.


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There were a couple of ribs which needed the gun, together with a long set. By gently flexing the ribs it was easy to get access.

These were the outboard ribs, and …


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… and one of the ribs next to the inboard hinge.


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Here’s one of the Inboard Rod End showing the nutplate.


Spar assemblies all complete ready to attach the nose skins.

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