Plans: 1: Cover the root edge of the wing with fabric. Status: Complete. 2. Drill holes in the ribs for the fabric rivets. Status: Complete. Both the top and bottom ribs of the wing were pre-drilled with rivet holes. Doing this at this stage makes it less likely I will damage the fabric covering later. Holes are spaced four inches apart and two inches apart. The closer spacing is applied to ribs in the path of the prop blast for extra strength.