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Home✈️Aircraft🚁Helicoptere-AlignT-REX 450 › Tail twitches during hover
05-28-2007 02:24 AM  13 years ago
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Stuntridah

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Saugus,Ma.-USA

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Tail twitches during hover
OK I have a newly built T-Rex 450SA 401 gyro and HDS-877 for tail servo. On the 401 I have it set to digital servo and delay set to 0. I have the limit pot set to where it does not bind anything.

If I pop off my tail servo rod I can manually move the slider nice and free with no sticking. When I am hovering, something is causing my rex to rudder hard about 45-90 deg then come back really quick. It happens a lot during a hover. It will do it maybe 6 or 7 times per min of flight. It is almost like a glitch but I am using a DX6 and AR6000 setup. It always goes the same way nose to the right, every time.

I noticed if I switch it to rate mode while i'm flying the twitch will not happen.

What can be causing this, any ideas?
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05-28-2007 02:36 AM  13 years ago
danowar

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Blackduck, MN

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I had a similar problem with a telebee gyro. My tail wouldn't kick that far, but it was still pretty significant. It also stopped when in rate mode, and didn't seem to do it in forward flight, but I was also learning still at that point and didn't do much for forward flight.

I replaced the telebee with a 401, and problem is gone.

Maybe you have a bad gyro???

Dano
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05-28-2007 02:39 AM  13 years ago
Stuntridah

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Saugus,Ma.-USA

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AAHHH thats not what I wanted to hear but thanks.
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05-28-2007 03:44 AM  13 years ago
gmebey

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Fort Collins, CO

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Had the same #$%^^$$#$%^ problem and it drove me nuts for a while.

Check out the following post, and save your self some time, just skip all the stuff and go to the last two post from me.

http://runryder.com/t347427p1/

After finding the solution I love the trex 450 and pushing the limit (almost to the sim level):-) I'm sure I will pay for it sooner or later.

.
"Once you are in RC you are in for life. You may go away but it will draw you back." By an
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05-28-2007 03:57 AM  13 years ago
Stuntridah

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Saugus,Ma.-USA

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Are you talking about using governor mode? I have it disabled. I do use soft start though. I dont get why it wont do it when in rate mode.
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