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04-22-2012: 2 hrs

Finished riveting aft F704 bulkhead, fabracated spacer. However, when drilling one of the 1/4" hole for spacer bolt, the drill went slight off straight, I reamed the hole to make a better fit of the bolt, and found the hole is slightly enlarged on the fwd end (about 1/32", aft end is ok). The only function of this bolt is clamping the spacer between fwd and aft F704 bulkheads, so I think this is OK. But this is a such a critial part, I sent an email to Vans to be sure. Hope Vans will say "it is ok, build on". But I really don't see the bolt will take a huge amount of shear load.

P.S: I got email from Vans, as I expected, Vans say the loose spacer bolts should be ok.
 





Shear bar is clamped for riveting


Shear bar is riveted


Shop head of shear bar rivet, it is a small, but this rivet will only hold the bar to the web, won't see huge loads.



Spacers are cut. I don't have press drill, so I used scotchbrite wheel to do the final trim. The flushness and flatness are not great, but will be ok


The length is per plan


F704 buckhead is done


Spacer is loosely bolted




Spacer bolt

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