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BOB'S WEB SITE
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Date:  6-10-2017
Number of Hours:  3.00
Manual Reference:  Section 13
Brief Description:  Riveted rib doublers

I drilled and tapped both tie down angles in the spars, then clecoed the spar doublers in their locations and also the angle on both spars.

I stopped, however, before continuing with Section 13 Step 5 because it doesn't make sense to me.

The drawing on the step shows one spar (I think it's the right) positioned with the spar flange down and one spar with the flange side up.It indicates open holes that need LP-3 rivets (and one doubler with LP-4s).

The problem I see is, at least with the most inboard doubler with open rivets at the moment, that there's another doubler angle on the side of the spar and there's a space between it and the spar web. So when you put three rivets in the open holes the instructions seem to be saying to rivet, you don't have any access to put rivets in the holes on the doubler on the other side (I'm assuming, of course) that eventually there will be instructions to do that)

So I took a break until I could clear it up with Van's. I could just blindly follow the step as shown, but when I built the RV-7, it was important to always know the big picture.

(Update: Here's the answer. No rivets go in those holes on the flange of the angle on the other side. They're only there so that the rivet can be inserted into the angle on the first side.)
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