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Glow engine and fuel tank installation – Great Planes P-47 Thunderbolt GP/EP ARF - GPMA1479 User Manual

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and attach the servo arms to the servos using the servo
arm screws included with the servos. With the elevators
and rudder centered, thread a 3mm set screw into the
tops of the pushrod connectors and tighten it against the
pushrod wires. Cut away the excess pushrod wires beyond
the pushrod connectors.

Glow Engine and Fuel Tank Installation

The Combat P-47 ARF is designed to be flown with a .25
glow engine or a brushless out-runner motor. If you plan to
install a brushless motor, skip this section as it only contains
information relevant to installing a glow engine.

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1. Seal the cooling air cutouts using some medium CA.

Using thick CA or 6 minute epoxy, mount the 3/8"x 3/8"x
9/16" [9.5x9.5x14.3mm] cowl mounting blocks to the firewall,
in the location shown.

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2. Remove the stopper from the fuel tank and remove

the contents.

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3. The fuel tank can be assembled as a two line system

consisting of a vent (pressure) line to the muffler and a
carb line. Filling and emptying of the tank would need to be
done through the carb line, or an optional fuel fill valve (not
included). The tank can also be assembled as a three line
system having a vent line, carb line, and fill line. If installing a
fill line, clear the plugged opening in the fuel tank stopper.

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5. Using the hardware supplied with the servos, install

the elevator and rudder servo into the servo tray with the
servo spines facing forward, in the locations shown. Be sure
to reinforce the servo mounting screw holes with thin CA. as
was done on the aileron servo mounting holes.

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6. As you did with the ailerons, cut three arms from the

elevator and rudder servo arms. Enlarge the outer hole of
each servo arm with a 5/64" [2mm] drill bit. Install a screw-
lock pushrod connector into the outer hole of each servo
arm. Tighten them to the servo arms with a 2mm flat washer,
knurled nut, and thread locking compound. The nut should
be snug against the washer but still allow the pushrod
connector to rotate freely in the servo arm hole. Slide the
pushrod wires through the screw-lock pushrod connectors