Hi all,

I just got a World Models Groovy 50 3A. It is a pattern ship and has a TT PRO 46 in its nose. I am using two Futaba S3004 servos for the ailerons and Hitec HS-475 BB servos for the rudder and elevator (one each). The rudder control is achieved through a pull-pull system which is stock supplied. Radio is Futaba 6XAS and the receiver is R127FD. This is my first time with pull-pull systems which I have just installed on it.

My problem is that when i center the rudder stick after deflection on one side, the rudder does not come back to zero position. It stops just a little before that and I just have to give a slight bump on the stick (opposite side) to make it come back. When the deflection is on the other side, the rudder comes back properly to zero. I am using that thick red servo arm that comes with the servo and the pull-pull clevises are in the outer most holes of the arm. The cables are taught but not tight like a guitar string. I have tried my best to fix the problem but with no results.

What do you all suggest?

Cheers