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Locate the three plywood dihedral braces. Using epoxy or thick
CA, glue and clamp these pairs of pieces together. Keep the edges of
the pieces lined up and wipe off any excess glue. Also laminate the
two center ribs together.
Before gluing the two wing halves together, trial-fit the wing joiner
into both wing panels. If it is not easy to slide into the wing, sand it
until it will. To fit properly, note that the wing has an upward "bend"
in it, called dihedral. While fitting, also have the double center rib
temporarily in place.
With 30 minute epoxy, liberally coat all sides and edges of the wing
joiner and slip it into one wing half. Now coat the both sides of the
double center rib where it will join to the wing halves.
Join the two wing halves and firmly press wing panels together.
Wipe off any excess epoxy with a paper towel and rubbing alcohol.
Make sure the two panels are accurately aligned with each other and
hold together with several strips of masking tape.
Place the servo tray on the top surface of the wing. Line it up with
the removed area in the center rib. Mark around the outside of the
servo tray with a felt tip pen.
Use a sharp knife to score the covering material where marked
around the OUTSIDE of the tray. Remove the covering material to
expose the wood underneath. Use thick CA or epoxy to glue the servo
tray securely in place.
Use a sharp knife to cut through and remove the covering materi-
al and balsa on the INSIDE of the servo tray.
Install your aileron servo.
Install the linkage between the servo and the aileron torque rods.
It consists of a nylon horn that is threaded onto the torque rod so a
few of the threads are exposed at the top, a threaded rod with a nylon
clevis screwed on one end. (Screw it on so 1/2 the threads still
remain.) To hook to the servo arm, put a "Z" bend on the other end at
the proper distance so the aileron remains in neutral.
Strips of covering film are provided to trim out the center joint. You
will need to use a covering iron or a household iron to secure the film.
7
WING ASSEMBLY
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