Great Planes PT-17 Stearman .91-1.20 ARF - GPMA1349 - Manual (Page 25)

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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.
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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.
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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.
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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.
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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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