Q Find the two 1/8" (3mm) die-cut plywood wing
joiners. Draw a center line on both sides of the
plywood wing joiners and balsa aileron servo tray
mounting blocks. Use one plywood joiner as a
template to mark the wing dihedral angle on both
of the balsa 5/16" x5/16" x 1-1/2" (8mm x 8mm x
38mm) aileron servo tray mounting blocks. Put
these mounting blocks aside for use later.
Orientation of the wing joiners
Q Arrange the two "V-shaped plywood wing
joiners in the same orientation as they will be
glued together.
Gluing the wing joiner
Q Mix approximately l/4oz. (7.5ml) of30-minute
epoxy. Using a mixing stick or epoxy brush, apply
an even coat of epoxy on one side of a wing joiner.
Stack the other joiner on top of the epoxy.
Clamping the wing joiner
l-l Use three clothes pins to clamp the wing joiners
together firmly. The excess epoxy must be removed
before it cures as described in the next step.
Removing the excess epoxy
l-l Excess epoxy will be squeezed out of the seams
between the joiners and must be removed before
the epoxy is allowed to cure. Use a paper towel and
rubbing alcohol to remove the excess epoxy.
Be careful not to disturb the alignment of the
joiner pieces.
Test fit the wing joiner
After the epoxy has cured and the clothes pins
have been removed, test fit the wing joiner in both
wings by sliding the joiner into the joiner cavity in
the wing. The joiner should slide in with a little
resistance up to the centerline drawn on the both
sides of the joiner.
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