I began riveting the nutplates on the tie-down assembly. It went fairly smooth and I am happy with how it turned out. I now see why the use of compact nutplates is not mainstream. Not the easiest to rivet...not impossible, just no room to work with. My friend later told me that a trick he uses is to use a punch and a back-rivet plate to set them. Good Idea!
I then bolted them to the spars with little incident. I wet set the bolts with primer on the shank. I did notice that one hole was a bit tough to screw in due to the one nutplate being tight. I will have to account for this when torquing.
I then began to trim the rear spar doublers. I sketched the dimensions shown on the plans out on a piece of paper and then transferred to the one doubler. I cut the doubler and used the sanding station to fine tune the piece. I then used that one double to transfer all the cut markings to the other pieces. I then trimmed all the other pieces. Once nearly complete, I cleco'd the pieces together and then finished them with the scotch brite wheel. They are all a perfect match.
