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Home✈️Aircraft🚁Helicoptere-AlignT-REX 800 › tail wag
07-04-2014 10:56 AM  6 years ago
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asphaltassault

rrNovice

whangarei

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tail wag
hey all i got a trex 800 dfc pro and it has tail wag all the tail is free no binding anywhere so i adjusted the gyro sens it was set at 70% and the lower i went the worse it got so i adjusted it up and its best at 80% but yea its still not rite any ideas?
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07-04-2014 02:52 PM  6 years ago
Pistol Pete

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Seffner, FL

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💎Sustaining Member
How does it behave/respond when in RATE mode?~~Enjoying the hobby one flight at a time~~
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07-04-2014 06:07 PM  6 years ago
unclejane

rrElite Veteran

santa fe, NM, USA

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hey all i got a trex 800 dfc pro and it has tail wag all the tail is free no binding anywhere so i adjusted the gyro sens it was set at 70% and the lower i went the worse it got so i adjusted it up and its best at 80% but yea its still not rite any ideas
Yeah, the amount of throw suggested in the manual isn't optimal at the servo end of the TR pushrod.

I ran into this on mine; they have you put the ball on the inside and in a hole that's too far in, IIRC, so you have binding between the ball and the servo case at very low travel limits.

The fix is to put the ball on the other side of the servo horn so you have more adjustment in terms of the throw. I don't have my heli in front of me at the moment, so I can't remember which horn I use and which hole it's in.

So you'll have to experiment with the throw to get rid of the wag. But it does go away once you get the throw adjusted right.

LS
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07-21-2014 01:30 PM  6 years ago
Richardmid1

rrProfessor

Leeds, England

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If the governor gain is too high it can kick the tail around so it's worth lowering it to check.60% of the time, it works every time!
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