Hangar 9 Twin Otter ARF Assembly Manual page 19

Step 10
Feed the extension lead through the wing to the wing
root and pass the motor leads through the firewall.
Use double-sided adhesive tape to attach the ESC to
the right-hand side of the battery compartment.
Step 11
Place a #4 steel washer on each of the 4-40 x 1
1/4-inch Allen head machine screws. Apply a drop of
threadlock to each of the screws then use a 3/32-inch
hex wrench to install the motor and 19mm standoffs.
Mount the motor with the leads to the right-hand side.
Twin Otter ARF Assembly Manual
Step 12
Connect the motor leads to the ESC.
Step 13
Use cable ties to secure the leads so they cannot
interfere with operation of the motor.
Step 14
Insert the battery and secure it with the hook and loop
strap. You may choose to use adhesive-backed hook
and loop tape (not included) under the battery for
additional security.
Step 15
Repeat steps 1 through 14 for the opposite side.
Hint: Glue a scrap block of balsa to the back of the
firewall to prevent the battery contacting the motor
mount screws.
19