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Old Mar 17, 2012, 11:56 AM
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ian145's Avatar
United States, CA, Santa Cruz
Joined Nov 2010
509 Posts
Help!
Trex 450 pro 3gx rudder control problem.

I was flying my stock trex 450 pro 3gx the other day and it started spinning uncontrollably. Luckily I was able to land with out breaking anything. I took a look and the tail rotor pitch will respond extremely to left rudder input to the point where the contol arm is bingding. And it wont even respond to the right rudder input. It was flying perfectly before. Can I just change where the pushrod connects to the servo? Any help is very appreciated.
Thanks, Ian
http://www.rcgroups.com/forums/showt...6#post21060751
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Last edited by ian145; Mar 17, 2012 at 12:05 PM.
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Old Mar 18, 2012, 04:13 AM
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Denver, CO
Joined Dec 2005
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You need to verify that the servo is good. If it is good, then you need to redo the 3gx tail settings.
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Old Mar 18, 2012, 12:28 PM
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Joined Jun 2008
479 Posts
Yeah, that sounds like the servo type has changed to a narrow band servo.I've done that accidentally on my other flybarred heli. The servo arm moves right over, and you get the symptoms you described
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