
33
Hangar 9 P-47D-40 Thunderbolt 30cc ARF
10. Position the engine between the mounting rails,
guiding the pushrod into the pushrod tube. Use four 8-32 x
11/4-inch machine screws, four #8 washers and four 8-32
lock nuts to secure the engine to the rails. Check that the
drive washer is 6
7
/
16
inches (164mm) forward of the firewall
before fully tightening the hardware using a #2 Phillips
screwdriver and 11/32-inch nut driver. Note the position
for the ignition system ground lug. We also drilled 1/8-inch
(3mm) holes in the engine mount to secure the spark plug
lead with a tie wrap. Connect any additional leads from the
ignition to the engine at this time.
When drilling the holes in the mount,
make sure to cover the carburetor and exhaust
openings with low-tack tape to prevent metal
from entering the engine. Remove any debris
from the engine before removing the tape.
11. Center the throttle stick and trim at the transmitter.
With the servo plugged into the receiver, attach the servo
horn to the servo using the screw provided with the servo
and a #1 Phillips screwdriver. Use a 5/64-inch (2mm)
drill bit to enlarge a hole that is 5/16 inch (8mm) from
the center of the horn. Install the pushrod connector and
secure it using a pushrod connector backplate. Remove any
arms from the horn that may interfere with the operation of
the throttle servo.
12. Mount the servo in the fuselage using the techniques
outlined earlier in this manual. The output shaft of the servo
faces to the front of the fuselage. Use the transmitter to
move the servo to the low throttle position. Use a #1 Phillips
screwdriver and the M3 x 4 setscrew to secure the pushrod
in the connector. You may need to remove the servo horn
from the servo to fit the wire through the connector. Check
the operation of the throttle using the radio system. It may
be necessary to adjust the end points at the transmitter
to prevent any binding when the throttle is in the open or
closed positions.
Fuel Tank Installation
Required Parts
Fuselage assembly
Fuel tank
Metal disk
M3 x 20 machine screw
Metal clunk
Gas fuel line, 120mm
Copper tubing, bent
Copper tubing, straight
Rubber stopper
Plastic cap
#4 washer (4)
Plywood fuel tank tray
4-40 x 1/2-inch socket head screw (4)
The stopper and fuel tubing included
are compatible with gasoline fuel only.
1. Locate the items for this section of the manual.
2. Use a hobby knife and #11 blade to remove the
material so two of the three holes in the stopper pass
completely through. Slide the straight and pre-bent brass
tubes through the smaller stopper plate. Position the front of
the tubes even with each other.