Hi,

I just bought a 3dhs extra 330sc and it's powered with a turnigy 5055 580kv motor, 80a esc, turnigy 3000mah 22.2v lipo, and a 14x7 prop. It flies well, very light and responsive, but I have a problem when hovering. The airplane yaws to the left and even full rudder is not enough to stop it from doing so. The rudder throw is maximum according to the recommended setup, but once the plane starts to yaw left, no amount of rudder will bring it back, even when I'm blipping the throttle. Is this a mechanical setup problem or is it something else? I have another sbach 342 57" that exhibits the same tendency...any suggestions would be greatly appreciated. My 3D skills are just at the beginner/intermediate stage.