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T-REX 550 › Need help setting up TREX-550E Radio and ESC
08-27-2012 02:10 PM  5 years agoPost 41
HeliNutAndy

rrKey Veteran

worcester, MA USA

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I was finally able to take the bird out for an initial test flight. The tail is vibrating so much I am afraid to lift the heli off the ground:

Watch at YouTube

I have created a separate thread in regards to this. My main reason for buying a Trex was the hope in getting a good quality heli that flies great. This is bumming me out for lack of a better description....

Anyways thank you very much for all of your help and hopefully someone else has also learned as much as I have from this post.

Andy

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08-27-2012 02:27 PM  5 years agoPost 42
ShuRugal

rrKey Veteran

Killeen, TX

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tail gain is too high, your gyro is over-correcting. To fix, reduce tail gain.

AMA 700159

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08-27-2012 02:36 PM  5 years agoPost 43
HeliNutAndy

rrKey Veteran

worcester, MA USA

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Thank you ShuRugal. I will try reducing my gain and hopefully you are right.

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08-27-2012 08:44 PM  5 years agoPost 44
HarveyR

rrVeteran

France - North

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You should reduce gain to something like 20% (GY mode), this is a minimum setting. From then take off then increase until it starts wagging. It's hard to say for sure from that video what might be wrong (quite a few things could cause that kind of wag on the floor, including bad ESC governor setting, or bad meshing, or bad Gyro mounting, ...)

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T-REX 550 › Need help setting up TREX-550E Radio and ESC
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