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The first picture is a view of the outboard end clamping arrangement. At this point the rear spar is reattached and riveted in place. Then the top surface skins are clecoed in place and loaded with rivets. I hold the rivets in with clear packing tape. This is the same thing I do when back riveting which is how we bucked these rivets. Kathy is doing the bucking and I’m doing the riveting with a long offset back rivet set. Cleaveland tool sells a nice heavy bucking bar just for this purpose. I could have used the back rivet bucking bar I had for the Sonex but it would be hard to hold and is flat with sharp edges. The bar Kathy is holding has rounded edges and a slight convex bucking surface nicely polished.
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