I worked on the plywood cover for the main fin spar. The cover consists of two different sections of plywood, of two different widths. The bottom half is 2 mm and the top half is 1.5 mm. I combined the two with a 15-1 scarf using the same jig that I used to make the 10 ft long elevator cover. Since the 15-1 slope is longer on the 2mm plywood the bump of the joint is on the aft face, not the glued face as shown in the blueprints.
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