Great Planes Piper J-3 Cub 40 Kit - GPMA0160 - Manual (Page 22)

plans. This goes on the bottom of each aileron. Sand it to
match the shape of the ribs.
NOTE: Do not glue the aileron hinges until after your
model has been covered.
❏
1. Lay the ailerons on the plan and mark the hinge
locations on the ailerons. Center the ailerons in the wing
panels and transfer the marks over to the wing TE.
❏
2. Cut the hinge slots in the ailerons and wing TE using a
hobby knife. (The suggested procedure was given on page 11).
❏
3. Insert the hinges into the slots and trial fit the ailerons
in place on the wing. Do not glue the hinges until after
you have covered the wing. NOTE: There should not be
any hinge gap!
❏
4. Position a Small Nylon Control Horn (NYLON03) on
each aileron as shown in the photo and on the wing plan.
Mark where to drill the mounting holes and remove the
control horn.
❏
5. Drill a 3/32" hole at each mark and temporarily install
the control horns using the 2-56 x 5/8" machine screws
(SCRW002) and the nylon nutplates. You may have to cut
the aileron LE away slightly on the top to clear the control
horn nut plate. Use either thick CA or epoxy to glue the
nylon nutplate to the aileron, but do not get glue on the
screws. Cut the excess screw off flush with the nutplate.
❏
6. Reinstall the aileron servo and snap the double ended
ball link in place. Screw a Nylon Clevis (NYLON17) with a
clevis retainer onto the threaded end of the scrap .074"
diameter pushrod wire section until the threads can be seen
inside the clevis. Snap the clevis into the outer hole of the
control horn and allow the pushrod to lay on top of the
bellcrank. Tape the aileron in its neutral position. NOTE:
Slide the silicone clevis keeper onto the base of the clevis.
❏
7. With the aileron servo in its neutral position, mark
where the pushrod crosses the outer bellcrank hole. Cut the
pushrod off 5/16" past that mark and then make a 90 degree
bend at the mark. Insert the bent part into the bellcrank and
secure it with a nylon snap keeper. Assemble the pushrod for
the other aileron following the same procedure.
❏
8. Cut eight 1/4" wide x 1" long pieces of scrap 3/32" or
1/8" balsa to use as aileron pushrod braces. Position them
Install Ailerons
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