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Hours Today: 0.6 Project Total: 482.4



(10-21 step 3):  Here I'm back riveting the bellcrank rib assemblies to the bottom skin.  In order to back rivet these I couldn't have them clecoed to the frame and bulkhead because they needed to be leaned over so I could get the back rivet set perpendicular to the flange & bottom skin.  No problem, seemed to work ok.  The flanges of the larger lightening holes towards the front proved to be in the way however causing the set to slightly dent them.  I lightly sanded these smooth & touched them up with some alodine.

Here's what being in a hurry and out of practice can do for you.  This is the bottom most rivet attaching the bellcrank ribs to the F-1007 frame.  These are AD4 universal head rivets… I still haven't gotten the hang of bucking these.  The upper two I used the squeezer on, the bottom one proved to be too far away for our yoke to reach.  So I hastily brought out the offset universal head rivet set and rivet gun & fired away...  After the first shot, the set bounced off producing the smiley you see here.  So, I pressed harder the next time.  The F-1007 frame is relatively thin material so the frame web around the rivet started bending.  I had to hit it a few more times in order to get an "acceptable" shop head on the rivet, but the web of the frame shows it!  Its not terrible by any means, but definitely not perfect.  If I had it to do over again, I'd think this one through a bit more & take the time to try something else.  Not having that option though I think this one will fall under the "I think I'll leave it because I'll probably do more damage if I try to do it over".





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