20
12b.
Use edge of dowel (or sharp tool) to make 1/16”
deep grooves 9” long in T.E. (4-3/4” for short wing), 1” long
in ailerons, and full length in inboard sections, for both wing
halves.
12c.
Using threaded end of aileron wire, file the grooves
to a rounded shape so half of the nylon tubing will lie
recessed in both the aileron and the T.E.
12d.
Cut two clearance slots 3/4” from center joint in
wing T.E., and 3/4” from inner ends of T.E. inboard sections.
13.
Using NO GLUE AT FIRST, temporarily place horns
in wing grooves, position both T.E.inboard sections and check
for horn movement-top to move about 3/4” total fore and aft.
Remove T.E. inboard sections, and carefully glue horn
wire tubing and T.E. inboard section in place (CAUTION: keep
glue off wires).
14.
Make two wing tip T.E.’s from remaining material
from step 11.
Temporarily hold aileron at T.E., and position wing tip
T.E. (allow 1/16” between end of aileron and tip T.E.). Glue tip
T.E. pieces in place.
Carefully cut tip to shape. Repeat for opposite tip.
16.
With corners stamped “M” towards bottom, position ply
horn angle gauge at threaded end of one horn wire, slowly press
aileron on other 3/4” end of wire to make a mark. With a small
nail, make a hole for the wire. Work carefully, keeping the hole
centered inside the aileron. Repeat for other aileron. When fit-
ting aileron, keep it centered to allow clearance at ends. Mark
hinge location over plan and drill hinge holes.
Using beveling tool “EA”, bevel front edge of aileron to
centerline. Turn aileron over and repeat sanding. Repeat for
other aileron.
17.
Using 240 grit (fine) sandpaper, flat sand entire wing
to blend surfaces and remove high spots.
Shape L.E. by first sanding sheeting at about 45 degree
angle, then carefully round off and blend surfaces.
18.
Position wing on fuse and check fit at wing/cabin. You
should be able to insert a sheet of sandpaper into the joint as
shown. If too tight, work the sandpaper into the joint with a
sawing action. This allows clearance for covering material.
