Hi,

corresponding rudder look here from BJ manuel

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Rudder

Directly use 1 servo.
The length of servo horn is 20mm, that of Rudder horn is 15mm-20mm
Servo used for test plane is 6.6 volt, 13 kg in torque and 0.17/sec in speed.
I felt that capacity of servo is proper.
As the rudder is larger than other pattern planes, torque of servo should be larger, the throw of
rudder should be the largest as long as it doesn't touch to stab when servo moves 140%.
Torque of servo for test plane has no room, servo capacity for Bi Side is recommended 15kg in torque,
0.19/sec in speed, if 0.15/sec in speed, 20kg in torque is needed.


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Regards

PW