Hangar 9 P-51 Mustang 20cc Manual

27 EN
P-51D Mustang 20cc
Motor installation other than the Power 60:
The measurement from the fi rewall to the drive washer should
measure 6
1
/
4
inches (159mm). Make any necessary adjustments to
achieve this measurement.
161. Install the battery tray in the fuselage using the screws
removed previously.
157. Use medium CA to glue the speed control mount to the
bottom of the motor box.
 Triangle stock has been provided to reinforce
the corners between the mount and box, as
well as the inside corners of the box.
162. Mount the battery in the fuselage using hook and loop straps
and hook and loop tape.
158. Use a hobby knife with a #11 blade to remove the openings in
the fuselage. A rotary tool with sanding drum can be sued to
smooth any rough edges.
 GAS ENGINE INSTALLATION
 The supplied template is marked for multiple motor
options. Make sure to use the marks that suits the chosen
power option. Other power options than those shown on
the template can also be used on the Hellcat. We suggest
using the template as a dummy firewall to ensure the power
option chosen fits and help align the holes for mounting.
159. Use hook and loop tape to mount the speed control. Connect
the leads from the motor and speed control and secure them
using tie wraps so they don’t interfere with the operation
of the motor. Use a hobby knife to cut a hole for the speed
control wiring to enter the fuselage. Guide the leads for the
battery and receiver through the tray.
 A tie wrap or the speed control mount
included with the controller are also recommended
to prevent the ESC from moving.
163. Place the mounting template on the fi rewall. Use low-tack
tape to hold the template in position. Use a drill and 7/32-inch
(5.5mm) drill bit to drill the four holes in the fi rewall to attach
the motor box.
160. Use 5-minute epoxy to apply hook and loop tape to the
battery and battery tray. Place two hook and loop straps
through the openings in the battery tray.
 Do not cover safety warnings on the
battery with hook and loop tape.
 Apply a small amount of 5-minute epoxy to the straps
to secure them to the battery tray. This will prevent them
from falling through the holes when the battery is removed.
164. Use an M4 x 20 socket head cap screw and M4 washer to
pull the M4 blind nuts into the back of the fi rewall.
 Use a large washer between the screw and firewall
to prevent compressing the wood on the firewall.