Owner manual

❏ 4. Use a #11 blade to cut part way through both
sides of the ribs that go on the outer ends of the center panel between the spar notches.
❏ 5. Glue together both die-cut 1/8"[3.2mm]
plywood center leading edges (CLE).
❏ 6. Cut the top and bottom spars for the center
panel to a length of 9-3/8"[240mm] from a 1/4"x 3/8"x 36"[6.4 x 9.5 x 910mm] basswood stick.
❏ 7. Join the ribs to the center leading edge, the die-
cut 1/8"[3.2mm] plywood center trailing edge, the die-cut 1/8"[3.2mm] plywood center spar web and the top and bottom main spars.
❏ 8. Position the assembly over the plan and hold it
down with weights and a few T-pins stuck into the jig tabs and into the bottom of the ribs where they contact the plan, just aft of the bottom spar. Use thin and medium CA to glue all the parts together. When gluing the outer ribs, use the die-cut 1/8"[3.2mm] plywood dihedral gauge to make certain they are set at the correct angle.
❏ 9. Mark the center of the hole to be drilled in one
of the 3/8"x 1"x 2-1/16"[9.5 x 25 x 52mm] basswood wing bolt blocks 5/8"[16mm] from the end and 3/8"[10mm] from the front edge. Drill a #7 hole through the block at the mark. Mark and drill the other wing bolt block the same way. Use 30-minute epoxy to glue the wing bolt blocks into position.
❏ 10. After the epoxy hardens, glue leftover
1/8"[3.2mm] balsa over the blocks to support the sheeting around the holes that will be drilled later.
❏ 11. Remove the weights and carefully sand the
tops of the center leading edges and the center trailing edge even with the tops of the ribs.
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