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270CFX Blade 270CFX Helicopters Information and Help


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Old 02-01-2018, 10:26 AM   #1 (permalink)
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Default little tail wag in beginning bad at end of flight

I had to replace my tail belt.
Once I did that I had Tail Wag in the beginning then it got bad at the end.
Was my tail belt too tight causing the bad wag causing the slider to break?

Also do I need to go back into the programing after I replace the belt or should it be mechanically fine after I replace it. I had to pull the boom out in order to tighten it up causing a Servo to chatter more what can I do to fix that.
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Old 07-14-2018, 08:25 PM   #2 (permalink)
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Quote:
Originally Posted by slowace View Post
I had to replace my tail belt.
Once I did that I had Tail Wag in the beginning then it got bad at the end.
Was my tail belt too tight causing the bad wag causing the slider to break?

Also do I need to go back into the programing after I replace the belt or should it be mechanically fine after I replace it. I had to pull the boom out in order to tighten it up causing a Servo to chatter more what can I do to fix that.
Sounds like the belts was too tight. Did you figure it out?
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Old 07-15-2018, 11:02 AM   #3 (permalink)
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So when the belt is replaced, the tail boom inevitably requires adjustment to tension the belt. In turn this will upset the positioning of the tail servo push rod, as such the push rod will ussualy need a little adjustment, so the tail blades are at roughly zero pitch when the tail servo is at centre.

The final step after these mechanical adjustments is to re-set the tail servo endpoints in the fbl. For the AR7210bx it is step E of the setup menu. Failure to perform this last step can result in binding.

Also with any new belt it's important to check it after the first flight, then continue checking for the next couple flights. They can stretch considerably and a previously tight belt can become very loose.
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