Great Planes 25% Pitts M-12S 50cc ARF - GPMA1421 - Manual (Page 30)

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17. Where the baffl e contacts the cowl, wipe that area
with a paper towel dampened with alcohol. Let the alcohol
dry and then mix an ounce [30mL] of 5-minute epoxy and
micro balloons. Apply a fi llet of the epoxy mixture around the
baffl e where it contacts the cowl to permanently secure the
baffl e. Allow the glue to harden.
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18. To allow for proper engine cooling you must have an
area to allow the air to escape the cowl. Cut two openings as
shown. Each of the openings should measure approximately
1" x 5" [25.4mm x 127mm].
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19. Re-install the cowl to the fuselage with the screws
and #4 fl at washers. Install the propeller and spinner. The
spinner is available as an accessory item from Great Planes
(GPMA4020). This is a high-quality, turned aluminum spinner
that has a scale shape and matching color to the airplane.
Completing the Radio Installation
At this point you should have all of the servos installed. All
that remains is installing the receiver, battery, switch harness
and two aileron extensions.
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1. There is a hole located where the forward cabane comes
through the surface of the fuselage. Insert a 24" [610mm]
servo extension into each hole and guide it toward the radio
compartment in the fuselage. These extensions are for the
ailerons in the upper wing. There are a number of ways that
you can secure the extensions. We cut 1/4" [6.4mm] bands
of heat shrink tubing, slipped them over the extension and
the cabane and then shrunk the bands with a heat gun. You
can secure the extensions with tape or even use hot glue.
Secure both wires to the cabane.
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2. Cut the 24" [610 mm] Velcro strap to fi t your particular
battery. Use the Velcro to secure the battery pack as shown.