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Another tail wagging question

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Old 06-07-2007 | 01:24 PM
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Default Another tail wagging question

Hi all,
I have been adjusting throttle and pitch curves on my Titan over the last couple of flights.
I have increased the rotor RPM up to 1700 ish.
Since I did this my tail has started to wag.
I reduced the gyro gain on the Tx down to 60% but tail still wagging.
If I go below 50% the gryo changes to RATE mode, right?
So, where is the correct place to make my adjustment?
401 gyro by the way.

limit pot??

Move ball on servo arm??

Thanks
Old 06-07-2007 | 01:30 PM
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Default RE: Another tail wagging question

How are you setting the gain? End points or gyro software and which radio?

You want the limit pot set for full throw with the rudder atvs at 100 and the gyro in rate mode.
Old 06-07-2007 | 01:33 PM
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Default RE: Another tail wagging question

I'll let you answer BH question before making final diagnosis, but shortening the servo arm could be your ticket. This ia ll assuming that you are doing the corrections on the appropriate channel for the gyro gain.

Rafael
Old 06-07-2007 | 01:47 PM
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From: Carrickfergus, UNITED KINGDOM
Default RE: Another tail wagging question

Thanks for the quick reply guys,
I am using the JR 9x2, in the US it is the 9303.
I have reduced the gain in the Gryo setup menu on the Tx.
End points set to 100%, I believe this is right?? Let the Gryo set the travel via the limit pot??
original setup for centre point made in RATE mode, adjusted the pushrod to get steady hover, no yaw.

If the limit pot is reduced is that just effecting full rudder travel, as opposed to gryo sensetivity in centre?

Cheers
Old 06-07-2007 | 02:07 PM
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Default RE: Another tail wagging question

Yes, the limit is your overall throw and should be maxed out with no binding.

So if the software is the same as the 9303 I'd say you need a shorter (14mm is about right) servo arm and the gain set at 75 or so.
Old 06-07-2007 | 03:13 PM
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From: Carrickfergus, UNITED KINGDOM
Default RE: Another tail wagging question

Thanks BH,
I will give it a go,

Cheers

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