Trex 450 wag

[tourerjim]

Can anyone help got me 450 flying lovely after raplacing many parts, turn out to be the batteries underated.
Got new batteries and solved problem but gain another the tail end wags like flicking a switch, i have reduce the gyro gear down to 40% on the radio but still acts up.
To solve the problem i have to lift slowly then hover for awhile the it settles down, everything seems nice and free.

[Aidi]

What Gyro are you using? This will help diagnose the problem you are getting.

[tourerjim]

Futaba GY401

[Made2Fade]

Try a diffrent hole on the rudder servo arm, you could be too far out... also eliminate static on the belt by spraying mr.sheen on it. Set the gyro up in normal rate mode first so it keeps the tail straight in the hover. Then flick the gain switch a few times so the gyro remembers this point. What hole you got the ball on the rudder servo?
Lee