How to set the helicopter tail rotor?

Hi everyone.

I am confused about the Rudder output of the APM.

On the website, it is said I should connect the rudder servo to ch4. However, I do not have a rudder servo.

The only thing I got is a tail rotor.

So how should I connect the rotor?



I know this is silly question, but I do need some advice.

Is there anyone use similar helicopter frame with me? (No rudder servo, only tail rotor)

I will appreciate your advice.



Can you give me a little more detail about the heli? Is it a coax? A ccpm heli would have a tail motor or a servo.