8
good lighting or use a small pin to puncture the covering).
When satisfi ed, use a felt-tip pen to mark the location of the
control horn mounting holes onto the aileron. Repeat this step
for the other wing panel.
❏
7. Drill 5/64" [2mm] holes through the aileron at the marks
you made. Install the control horns onto the ailerons using 2-56
x 5/8" [16mm] machine screws and control horn backplates.
With the ailerons in the neutral position (use tape or small
clamps to hold them in place), mark the pushrod wires where
they cross the outer hole in the servo arms.
FasLink
2-56 (.074") Pushrod Wire
Servo Horn
1/16"
❏
8. Make a 90 degree bend at the mark on each pushrod
and cut off the excess pushrod 1/4" [6mm] beyond the bends.
Attach the pushrods to the servo arms using nylon FasLinks.
Thread the clevises up or down on the pushrods as necessary
to center the ailerons with the servo arms still perpendicular
to the servo cases. When satisfi ed, slide the silicone clevis
retainers to the ends of the clevises to secure them.
❏
9. Prepare the aluminum wing joiner piece by roughening
both sides of it with 180-220 grit sandpaper. Clean the piece
with denatured alcohol. Use epoxy to laminate the three wing
joiner pieces together with the aluminum piece in the center.
Wipe away any excess epoxy using a paper towel dampened
with denatured alcohol and use small clamps to hold the parts
together while the epoxy cures. Be sure that the edges of each
piece are fl ush with the others.
❏
10. Route the aileron servo leads through the holes in the
top of the wing panels.
❏
11. When the epoxy from step 9 has cured completely, test
fi t the joiner into each wing panel. Make sure that the joiner
can be inserted halfway into each joiner pocket (the point of
the “v” shape of the joiner should point towards the underside
of the wing. Drawing a line down the center of the joiner is
helpful.) The joiner should be a slightly loose fi t in each panel
to allow space for epoxy. Sand the sides or edges of the joiner
until the proper fi t is achieved. Insert the nylon anti-rotation
pin halfway into the hole in one wing panel and test fi t the
two panels together.
