Working on producing the aft ribs. I have Completed 8 blanks using a router and a form block. They are cut to size with 1/2 inch over run on each edge for the flange, corners cut, and pilot holes for lighting holes drilled.
I have previously bought the form blocks from Sonex, but the aft rib is the same size as the full scale drawing, in that I mean there is no extra for the flange, so I made the larger form block. Plus I made a slightly smaller crush block as in suggested in the build manual to allow room for the fluting pliers.
