Rudder Servo Installation - Hangar 9 Extra 300 ARF Assembly Manual


6. Mount the tail gear.

7. Hook the springs to the T-bracket from the tiller arm.
Pass through the hole and wrap the spring around the arm a
couple of times.
35% Extra 300 ARF Assembly Manual

Rudder Servo Installation

Required Parts
Fuselage
Ball link (1)
Rudder pushrod (1)
Required Parts (not included)
JR 8911HV or similar digital servo (1)
JR 1.5-inch servo arm (1)
JR heavy-duty servo extension, 24-inch (1)
Required Tools and Adhesives
Pin vise Phillips screwdriver: #1
String (Dental floss)
3/32-inch ball driver
Note: The fuselage is made to accept 2 rudder servos,
however if the recommended servo is used, only one
servo is needed even for the most extreme 3D flying.
For lower torque servo, use two servos.

1. Prepare the servo by installing the rubber grommets
and brass eyelets. Attach the 24-inch extension and secure
the connector with a piece of dental floss (string).

2. Apply a piece of masking tape over the knot holding
the leads.

3. Mount the servo so the output shaft is closer to the
rudder hinge line and mark the mounting lugs.

4. Using a pin vise, drill the marked spots.

5. Mount the servo screws and back them out, then
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