Horizon Hobby EFL17750, Instruction Manual

Page: 10 / 68

EN
Viper 90mm EDF
10
Control Horn and Servo Arm Settings
Factory Setting Control Horns Servo Arms
Elevator
E
A
R
E
A
R
Rudder
E
A
R
E
A
R
Aileron
E
A
R
E
A
R
Flap
E
A
R
E
A
R
Nose Wheel Steering
E
A
R
E
A
R
Control Surface Direction
Switch on the transmitter and connect the battery. Use the transmitter to operate
the aileron, elevator, and rudder controls. View the aircraft from the rear when
checking the control directions.
Ailerons
1. Move the aileron stick to the left. The right aileron should move down and the
left aileron up, which will cause the aircraft to bank left.
2. Move the aileron stick to the right. The right aileron should move up and the
left aileron down, which will cause the aircraft to bank right.
Elevators
3. Pull the elevator stick back. The elevators should move up, which will cause
the aircraft to pitch up.
4. Push the elevator stick forward. The elevators should move down, which will
cause the aircraft to pitch down.
Rudder
5. Move the rudder stick to the left. The rudder and the nose wheel should move
to the left, which will cause the aircraft to yaw left.
6. Move the rudder stick to the right. The rudder and the nose wheel should
move to the right, which will cause the aircraft to yaw right.
Tuning Control Horns Servo Arms
More control throw
Less control throw
The table to the right shows the factory settings for the control horns and servo
arms. Fly the aircraft at factory settings before making changes.
NOTICE:
If control throws are changed from the factory settings, the AR637TA
gain values may need to be adjusted. Refer to the Spektrum AR637TA manual
for adjustment of gain values.
After flying, you may choose to adjust the linkage positions for the desired control
response. See the table to the right.
Aileron Stick
Rudder Stick
Elevator Stick