Join The Wing Halves - GREAT PLANES PT-19 Instruction Manual

3. Cut the covering from the hole in the top of the wing
for the servo wire.
4. Use the string to pull the aileron servo wire through the
wing (or just guide the servo wires down through the holes
without the string) and fi t the servo into the servo openings.
5. Drill 1/16" [1.6mm] holes for the servo mounting screws
in the wing and in the aileron for the control horn screws (use
care not to drill through the top of the aileron).
90º Connector
6. Enlarge the holes in the servo arm with a #48 [.076"]
drill. Mount the servo in the wing. With the servo arm and
aileron centered, make the pushrod and hook up the aileron
using the hardware shown on the previous page.
7. After mounting the aileron horns, remove the screws,
harden the holes with a few drops of thin CA, allow to harden,
and then reinstall the screws.
8. Hook up the aileron servo in the right wing the same way.
It will be a little easier to mark and drill the holes for the main
landing gear wires before gluing the wings together...
1/8" [3.2mm]
1/8" [3.2mm]
9. Use a fi ne-point felt-tip pen to mark lines on the wing
1/8" [3.2mm] ahead of and behind the channel for the landing
1/16" [1.5 mm]
Servo Arm
Channel for
landing gear wire
6
gear wire. Position the holes in the landing gear straps on
the lines and mark the locations of the holes onto the wing.
10. Drill 3/32" [2.4mm] holes into the wing at the marks.
11. Remove the ink lines with a paper towel square
dampened with denatured alcohol.

Join the Wing Halves

1. Use epoxy or medium CA to glue together the two
pieces of the plywood wing joiner.
2. Glue the nylon alignment pin halfway into one of the
wing halves.