GREAT PLANES PT-17 Stearman Instruction Manual page 25

9. Measure down 2-1/4" [57mm] from the top of the
fuselage former and make a line on the former. Do this on
both sides of the fuselage. Locate two 1/4" x 1/4" x 6" [6.4 x
6.4 x 152mm] hardwood sticks. Securely glue them to the
former, aligning the top of the stick with the lines you marked
on the formers.
10. Locate the 1/8" [3mm] plywood receiver/battery tray.
Place it on top of the hardwood sticks you glued in and place
the tray against the fuel tank to keep the fuel tank in
position. Drill a 1/16" [1.6mm] hole through the mounting
holes in the tray and into the hardwood sticks. Insert and
then remove a #2 x 3/8" [9.5mm] screw into each of the
holes. Then apply a couple of drops of thin CA into the holes
to harden the threads. Once the glue has cured the tray can
be mounted with four #2 x 3/8" [9.5mm] sheet metal screws
and #2 washers. Do not install the tray at this time.
11. On one side of the tray, place 1/4" [6.4mm] foam
between the receiver and the tray. On the other side place 1/4"
[6.4mm] foam between the tray and the battery pack. Use
#64 rubber bands to hold the receiver and battery to the tray.
12. We installed the radio switch and the battery charge
jack inside the front cockpit. Place a pilot in the cockpit as
your guide for positioning the switch and charge jack.
13. Connect the battery to the radio switch and secure
the ends of the leads with heat-shrink tubing, tape or some
other method for securing the leads.
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