Great Planes Spitfire 25 GP/EP ARF - GPMA1478 - Manual (Page 11)

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1. Locate the two plywood wing joiners. Mix up a small
amount of epoxy and laminate the two pieces together. Join
the pieces together, being sure the edges are as flush as
possible. Use alcohol to wipe away any excess epoxy. Make
note of the top side of the joiner. This should face the top of
the wing panels when installed.
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2. Trim the covering from the round servo wire exit holes
on the tops of the wing panels. Feed the servo wires through
the holes.
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3. Test fit the joiner into both wing halves. The joiner
should fit slightly loose to allow room for epoxy. If the joiner
is too snug, sand the face, top or bottom as necessary for
the proper fit.
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4. Trim the covering that overlaps onto the root ribs of
each wing panel. Mix approximately 1/2 oz [15cc] of 30-
minute epoxy. Apply a liberal amount of epoxy into the wing
joiner pocket of each wing, the root rib of each wing and the
joiner. Insert the wing joiner into the right wing panel and
then slide the left panel onto the joiner. Push the two halves
together firmly, making sure there are no gaps anywhere
between the wing panels. Clean any excess epoxy from the
wing surface with alcohol. Hold the wings together with
masking tape until the epoxy has completely cured.
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5. Locate and remove the covering from the wing bolt
holes near the TE of the wing.
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6. Align the wing bolt plate over the holes on the
underside of the wing. There is a shallow perforation on the
uncovered side of the wing bolt plate to allow you to bend
the plate to match the dihedral of the wing. With the wing bolt
plate centered over the holes, use a fine, felt-tip pen to trace
around the plate onto the wing.
Join the Wing
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