Firewall dimpling & countersinking

Started out tonight by breaking out the C-frame and dimpling most of the rivet holes in the firewall. All these holes will get flush rivets on the forward side. There are a handful of the holes that don’t get dimpled, though; four of them are where a spacer sits on the forward side, and the rest are where two nutplates sit on the forward side. Next I moved on to countersinking all the firewall angles to match those dimpled holes. This went well, except for the part where I countersunk one hole too many:

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Yup, that’s one of those holes that doesn’t get dimpled, so it shouldn’t be countersunk on the angle either. Welp, another piece for the scrap bin.

After wrapping up all the countersinking, I set the firewall aside – no more work on that until I get the replacement part from Van’s. So I moved on to the next step, which is the fuselage floor. All I really intended to do was to gather the parts and cleco them together, but once again, it took forever to find some of the parts. But I finally found them, and here’s that assembly clecoed together:

IMG 5757

IMG 5759

And that’s all for tonight.

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