I mounted the T-712 brackets to the spar and then began prepping the tank ribs. I edge finished the large areas on the ribs with the scotchbrite wheel. I made several passes across the nose of each rib to smooth all the small flanges. Next phase was deburring all the holes in the ribs. I also deburred/edge fininshed all the cut outs around the nose of the rib and in the corners with files, emory cloth and scotchbrite.
