kearney(at)shaw.ca
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 Posted: Sun Dec 17, 2006 9:06 pm Post subject: Riveting the elevators |
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Hi
Page 9-12 details how to use the special elevator bucking bar. I bought this at Cleaveland Tools for $29 and worth every penny. I ended up using the bucking bar to do all the rivets on the on the rear spar. After scoping things out, I thought I could do a better job than reaching under with a different bucking bar. I am very pleased with then end result.
When doing the rear spar, I was concerned about making sure that the bucking bar was placed correctly. It seemed a bit too easy to not insert the bar all the way. To prevent this I put the bar in and then marked a line across the bar where it went under the skin. This gave an easy reference to ensure it was always inserted fully. As well, I marked a small box centered on the end of the bar using a red marker. If I could see the red box through the rivet hole, I knew I the bar was properly centered. This may seem like overkill to some, but I am paranoid about riveting on the skins.
When assembling & riveting the elevators, I completed the riveting on one before doing the second. As a consequence I realized that a small change in the assembly sequence made riveting Tip Rib Assembly (steps 4- 6 Page 9-14) a bit easier. In the case of the second elevator, I didn’t rivet the skin to the aft spar outboard of the last E-1008 ribs. This made it much easier to get access to the to the Tip Rib Assembly rivets as the skin could be lifted much easier without fear of creasing the skin along a rivet line.
Once the Tip Rib rivets were in place, I finished riveting the skin to the aft spar.
Just my $0.02 from a weekend of plodding away….
Cheers
Les Kearney
RV10 # 40643 – Lost in the empennage
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