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Pauls Web Site
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Date: 5-20-2012
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Number of Hours: 7.00
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Manual Reference: T02
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Brief Description: Prime VS Parts, and Assemble HS
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Started day etching and priming Vertical Stabilizer parts.
Riveted the Horizontal Stabilizer frame together.
Skinned the bottom side of the Horizontal Stabilizer. Had quite a bit of trouble getting the rivets to fit in the holes. Used a center punch to help alight the holes, and possiblly open the hole slightly. I think in the future I'll use a number #32 bit instead of a #33 bit to drill the hole to be dimpled. This will also make using the clecos easier.
I had a lot of trouble flush riveting the elevators, so I decided that maybe using a hand riveter would give better results. However, I didn't want to pull them all the way by hand, so I first pulled the rivets using the pnumatic riveter at only 30 PSI. This pulled the stem most of the way, be isn't enough pressure to break it or pull it through. Then I used a hand riveter to break the stem, pumping it a few times before the final break.
To my delight, it did not have a single protruding stem! Quite a difference from the elevators.
For the last three rivets, I cranked the air pressure back up to 45 PSI and broke the stem. Maybe just luck, but these also broke just right. I have a theory based on the fact that I've felt the rivets get very hot during the initial pull. I think that maybe letting the rivets cool down and "work harden" is the key. Perhaps the hand riveter just being slower forces this to happen. So, the two step pnumatic riveter process may be the key to getting the flush rivets to pull correctly...we'll see later this week when I do the top side of the Verticle Stabilizer.
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Primed Vertical Stabilizer Parts
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Began riveting Horizontal Stabilizer
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Flush Rivets Looking Good
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