rod should be 7/8” long and the aileron end of the torque rod should be 5/8”
long.
10.
Cut a 1/8” wide groove, centered on the aileron hinge line, in the T.E. starting ½”
from the wing centerline and ending an aileron cutout. The groove should be
deep enough to allow the torque rod to be in the center of the T.E.
11.
Lightly sand the brass tube on the torque rod assembly. Spread Vaseline on the
ends of the torque rod where you don’t want epoxy to stick. Epoxy the torque rod
assemblies in their respective grooves. When the epoxy has cured, fill the grooves
with light weight spackling.
12.
When the spackling has dried, insure the torque rods move freely, and then sand
the spackling to match the contour of the wing.
13.
Make a cutout in the center of the wing the size of the servo case and ½” deep,
forward of the spar, for the aileron servo. Temporarily install the aileron servo
and the ailerons. Fabricate the aileron linkage. Remove the aileron servo and
ailerons.
14.
Make a mark ¾” and 1 ¾” aft of the leading edge (L.E.) on the wings centerline
on bottom of wing. Place the 1” x 3” x 1/8” wing hold down block between these
marks centered on the wing centerline. Trace the outline of the hold down block
on the foam. Remove enough foam in this area so the hold down block will sit
flush with the wing surface. Epoxy the hold down block in the cutout.
15.
Spread a thin layer of lightweight spackling over the entire wing and allow to dry.
When dry, sand the spackling to match the contour of the wing. Fill any low
spots with another layer of spackling, allow to dry and sand to a smooth surface.
Note: This provides a smoother surface when the wing is covered.
16.
Bevel on the L.E. of the aileron top, bottom, and center hinge. Remove the
sanding dust from the ailerons and cover.
17.
Spray the lower surface of the wing with a light coat of 3M-77, allow to dry a few
minutes and cover the bottom of the wing.
18.
Spray the top of the wing with a light coat of 3-M77. Allow to dry a few minutes
and cover top of wing.
