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tAIl servo Adjustment
TAIL ROTOR SERVO SETTINGS
Note: Please refer to the instructions for your gyro in addition to these notes. Please have your gyro connected to the receiver
and the tail rotor servo plugged into the gyro while performing these checks.
Servo Horn: The servo horn needs to be attached so that there is an angle of 90° between the linkage rod and the servo horn's
arm with the servo at neutral as shown in the figure below. It is best to install the arm on the servo with the gyro in rate or
normal gain mode so that the servo is centered properly. After the servo arm is installed and the tail control rod set, the gyro can
then be set to tail lock mode as desired. The tail rotor linkage rod should now be adjusted in length so the tail rotor pitch slider is
in the middle of its travel.
Reverse Switch (servo direction): The direction of the tail rotor servo movement is set in the Radio using the servo reversing
function. To check if the servo moves in the correct direction move the rudder (tail rotor control) stick on the Radio to the left.
The servo arm should move toward the rear of the helicopter. Moving the Radio stick to the right should move the servo arm
toward the front of the helicopter. The gyro's direction of response to rotation of the helicopter is discussed and set on page 50
of these instructions.
Travel Adjust (right and left angle adjustment): The Radio travel adjust setting for the tail rotor (rudder) channel will generally
control yaw rate. The physical servo limits for left and right are set on the gyro. Please refer to your gyros instructions.
Sub-trim (Radio's internal rudder trim): Generally this should remain at zero but may require adjustment depending on your
make and model of gyro. Please refer to your gyro's instructions for further information about its setup.
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