I decided to go ahead and rivet the aileron pocket ribs in before putting the rear spar in the jig. I spent hours on my back doing this on the left wing, it’s much easier to do on a table.
The only adjustment I made was to trim the tip pocket rib about .04 since it sits on top of the attach angle and on the bend radius.
I got the rear spar set in the jig. This required me moving the 4 threaded rods used for support to line up with the lightening holes, the root end of the spars are on the opposite side of the jig for this wing. I measured from the web to the overhead wire at the root end and made adjustments to the threaded rod supports to maintain the root measurement down the length of the wire. I will do the same for the main spar…..ensuring the spars are perfectly parallel. I also made some small adjusts to the wood blocks holding the spars to ensure the spar was level from top to bottom….down the entire length.
Level from top to bottom. I use some washers that are thicker than the rivets to set the level on top of….makes it easy.
rear spar is set.
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