26
E-flite Ultimate 20-300 Assembly Manual
2. Attach the motor to the firewall using four 4-40 x
3/8-inch socket head screws and four #4 washers.
Tighten the screws using a 3/32-inch ball driver.
Note
: Use threadlock on the screws to prevent them from
vibrating loose.
3. Position the speed control inside the fuselage. Pass the
wires for the motor through the lightening holes in the
fuselage and connect them to the wires from the motor.
4. Use hook and loop material to secure the speed
control inside the fuselage in the position shown. Also
secure the switch from the speed control inside the
fuselage. A 3-inch (76mm) servo extension will be
required to connect the speed control to the receiver. A
6-inch EC3 extension will also be required to extend the
battery lead to the front of the aircraft at the battery tray.
Note
: If using the E-flite 40-amp speed control, we
recommend that you tape the switch in the On position
if you are not going to mount it externally. It can be
mounted on either side of the fuselage in the holes
provided by cutting the covering out of the hole and
sliding the switch from the inside to the outside of the
fuselage.
Important Information About Your Brushless ESC
Make sure your ESC brake is programmed to Off. Also,
be sure to use an ESC with the proper low-voltage cutoff
and have it set correctly for the batteries you are using.
