Great Planes Edge 540 1.60-43cc Performance Series ARF - GPMA1414 - Manual (Page 12)

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roughen both sides of each aluminum wing joiner piece and
remove the sanding dust from the pieces. Glue the three pieces
together using 30-minute epoxy with the two aluminum pieces
against the flat side of the wood piece. Note that the joiner
has a slight “V” shape that will give the wing a small amount
of dihedral when assembled. The point of the “V” shape is
the
bottom of the joiner. Wipe away any excess epoxy with
a cloth dampened with denatured alcohol and use clamps to
hold the pieces together while the epoxy cures. Be sure that
the joiner pieces are glued so the edges are flush with each
other. Mark a centerline on the assembled wing joiner.
Read all of step 3 and dry fit the parts together to ensure
a proper fit before gluing. Sand the wing joiner or root
ribs if necessary to achieve the correct fit. The root ribs
should join together tightly with no gaps.
o 3. Use a mixing stick or something similar to coat the
inside of the wing joiner pockets of both wing panels with
30-minute epoxy. Thoroughly coat one half of the wing joiner
with 30-minute epoxy and insert it into the joiner pocket of
one wing panel with the bottom of the “V” shape pointing to
the underside of the wing and the aluminum pieces toward
the LE of the wing. Coat the root ribs of both wing panels and
the protruding end of the wing joiner with epoxy. Slide the
wing panels together and use tape to hold them tight while
the epoxy cures. A small clamp can be used to align the
trailing edge while the epoxy cures. Wipe away any excess
epoxy with denatured alcohol.
o 4. Bevel the ends of the 3/8" x 2" [10x51mm] wing dowels.
Use epoxy to glue the wing dowels in place. Position the dowels
so that 5/8" [16mm] protrudes beyond the front of wing.
o 5. Draw a center line onto the plywood wing bolt plate as
shown. Position the wing bolt plate over the wing bolt holes
on the underside of the wing and use a felt-tip pen to trace
around it.