Build The Wing; Join The Wing Halves - GREAT PLANES Ryan STA Instruction Manual

BUILD THE WING

Join the Wing Halves

1. Use epoxy to glue the three plywood forward wing
joiners together. Wipe away excess epoxy before it hardens.
Refer to this photo for the following two steps.
2. Cut the covering from the pre-drilled holes in both wing
halves for the servo cords, the wing dowels and the wing
bolts. Route the end of the string through the servo wire hole
in the top of both wing halves and tape the end of the string
to the top of the wing.
3. Test join the wing halves using the forward wing joiner
you glued together in the first step and an additional plywood
aft wing joiner that fits in the slot near the trailing edge.
Make adjustments where necessary for a good fit. There
should be no gap between the wing halves. When one wing
half is lying flat on the workbench the tip of the other half
should be approximately 6-5/8" from the workbench.
4. Separate the wings and remove the joiners. Thoroughly
coat all mating surfaces, including the inside of the wings
where the joiners fit, with 30-minute epoxy, then glue the wings
together. Use masking tape to tightly hold them together until
the epoxy has hardened. Excess epoxy that gets on the
covering can be easily removed before it hardens with a tissue
dampened with denatured alcohol or other suitable solvent.
5. Round one end of both hardwood wing dowels. Use
epoxy to glue the dowels into the wing with the rounded
ends forward. Be certain approximately 1/2" of the dowels
protrudes from the wing. While you've got some epoxy
mixed up, lightly coat the dowels to fuelproof them.
6-5/8"
6. Use a sharp, new #11 blade to trim the covering from
the bottom of the wing for the 1/8" plywood wing bolt plate.
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