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Locate the aileron servo locations on the bottom of the wing. The pushrods are 3” out
from the wing centerline with the servo horn about 4½” from the trailing edge. Mark
the servo locations on the wing. Use tape on a knife blade as a depth gauge and make
several closely spaced cuts along the length of the servo location. Use a knife to pry
out the foam from the servo locations. Check to make sure your servo arms are
centered and move in the right directions. Hot glue the servos into position. Make
narrow slits in the wing between the servo and the centerline of the wing. Push the
servo wires into the slit, and then tape over the wires. This will prevent the servo wires
from being pinched by the fuselage side doublers.
Make two 1½”x½” light ply doublers (material not supplied). Glue one doubler on each
aileron where the aileron control horn will be attached. (We’ve discovered that
attaching the aileron control horn directly to the foam aileron without a doubler will
result in a joint failure due to the aerodynamic load on the aileron. Adding the doublers
strengthens this connection.) Install the ailerons using your favorite hinge method.
Again, use sealing tape to seal the hinge area.
Drill holes for the aileron control horns and glue them in place. Connect the control
horns to the servo arms with either .032 or .042 diameter wire with a “Z” bend at the
servo end and a keeper at the aileron end.
Tip: There are several ways to make the
servo arm to aileron horn linkage. Another method is to make two wires with a “Z”
bend at the end of each wire. Install one wire on the servo arm and the other wire on
the aileron horn. Put a one-inch section of heat shrink tubing over both wires. Trim
the wires to length so that the wires have about an inch of overlap. Shrink the tubing
and then infuse CA glue into the joint.)
Attach a strip of strapping tape along the bottom of the wing approximately 2¼"
behind the leading edge of the wing.
The wing will use four #64 rubber bands for wing mounting. Glue the supplied
1
/
16
” X
¾” X 3” ply wing doubler to the top of the trailing edge of the wing to prevent the
rubber bands from crushing the trailing edge of the wing. Again, those of you who
prefer carbon fiber may substitute flat carbon fiber for the ply in this location.
Tip:
Install the rubber bands from the rear forward to avoid catching the bands on the ends
of the aileron.
