Owner manual

BUILD THE OUTER PANELS We’ll start by making the wing skins. It’s a bit of an
undertaking to do them all at once, but then you
won’t have to make any more. Or you could just
make the skins as needed…
❏ 1. Glue together two 1/16"x 3"x 36"[1.6 x 75 x
910mm] balsa sheets to make one 6"x 36"[150 x 910mm] balsa outer wing skin. Make seven more
6"x 36"[150 x 910mm] outer skins the same way.
❏ 2. After the glue has dried, cut a 3/4" x 18"[19 x
460mm] strip from four of the skins. These will be the skins used for sheeting the front of the wings. Glue the cut off strips to each of the remaining four other skins. These will be the skins used for sheeting the rear of the wings.
❏ 3. After the glue has dried, sand the skins flat.
Remember, the insides of the skins don’t have to be perfect—do not over thin the skins by sanding too much.
Start building the left panel so your progress
matches the photos the first time through.
❏❏4. Cut the left wing panel plan from the wing
plan and place it over your flat building board and cover with Plan Protector so glue will not adhere.
❏❏5. The same as was done for the ribs on the
ends of the center panel, cut partway through both sides of rib W2 between the spar notches.
❏❏6. Glue a die-cut 1/8"[3.2mm] plywood wing rib
W5A to W5 and glue a W4A to W4. Make sure you
glue the “A” ribs to the correct side for the wing panel you are working on.
❏❏7. Glue together the two parts of the die-cut
1/8"[3.2mm] plywood spar webs.
❏❏8. Cut two 1/4"x 3/8"x 36"[6.4 x 9.5 x 910mm]
basswood sticks to the length shown on the plan for the top and bottom spars.
❏❏9. Fit but do not glue all the wing ribs (W2
through W9) to the spar web. Fit but do not glue the top and bottom spars, the die-cut 1/8"[2.4mm] balsa aileron bay sub trailing edge, flap bay trailing edge and the die-cut 3/32"[2.4mm] balsa outer sub
leading edge.
❏❏10. Pin five or six of the wing ribs down to the
building board through the low points just aft of the bottom spar and through the jig tabs.
❏❏11. Use thin or medium CA to glue all
contacting parts together except for the top spar—do not get any glue on the top spar. Use the dihedral gauge to make sure rib W2 is set at the correct angle. (The rib should lean slightly toward the wing tip to accommodate the dihedral.)
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