15
MOUNT THE MOTOR
The Extra includes motor mounting parts for both the Great
Planes brushless 35-30-1250kV RimFire out-runner motor
and the brushless 24-45-3790kV Ammo in-runner motor
equipped with the Great Planes 24mm gear drive. Other
motors may be able to be installed. However, modifi cation to
one of the motor mounting boxes would be necessary to suit
the size and mount pattern of your equipment.
In-runner Brushless Motor with 24mm Gear Drive
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1. Locate the six pieces that make up the in-runner
motor mounting box. Attach the motor to the gearbox
using the screws included with the gearbox (be sure to
read the instructions included with the gearbox). Remove
the brass collar on the gearbox shaft and attach the motor
mounting box front piece to the gearbox using three 3mm
x 8mm machine screws, three 3mm washers, and thread-
locking compound. Assemble the box as shown with medium
CA glue (the longer side piece being on the left of the box).
When the motor mounting box is fully assembled, all sides
should be fl ush with each other as shown, and can only
assemble one way.
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2. Use medium CA or epoxy to thoroughly glue the motor
mounting box assembly to the fuse, being sure that the box
is fl at against the fi rewall. The tabs on the back of the motor
mounting box will fi t into the slots in the fi rewall.
