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T-REX 500 › 500 drifting to the left
11-19-2011 05:08 PM  6 years agoPost 1
patriot21

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Byron,MN

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Hey guys...
been awhile since i have set one of these up.... i made sure the swash is level.... the heli wants to drift to the left in a hover...should i use the trim or subtrim on this ...or is it natural for it to drift left... i cannot remember...
Also, I have noticed as the swash moves up it starts to tilt back.... as i look at the back linkage, the angle of it has a slight tilt backwards because of where the ball link on the servo arm.....

Any suggestions...

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11-19-2011 05:36 PM  6 years agoPost 2
wrongler

rrProfessor

Brewerton, New York

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If its FB you can use the trim, but it sounds to me like the set up isn't the way it should be. I would go thru it again and make sure you have 0 pitch at mid stick and everything is level.

Bill Whittaker

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11-19-2011 08:16 PM  6 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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Drifting left is natural, you have a tail rotor counteracting torque that wants to make the nose turn left. As a result, the TR is pulling the tail to the left. It's also wanting to drive the heli to the left. In a hover, properly trimmed, the heli will have about a 2 degree lean to the right (viewed from behind).

As for the swash -- your basic mechanical setup is most likely wrong, and you may have your radio setup wrong, as well. Back to the basics here:

https://rc.runryder.com/p4325158/

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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11-20-2011 02:40 AM  6 years agoPost 4
patriot21

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Byron,MN

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Hey Dkshema.... I started to wonder about the heli drifting left point with the main tail rotor... nice post by the way... !!

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11-20-2011 03:47 AM  6 years agoPost 5
patriot21

rrKey Veteran

Byron,MN

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Thank you sir dkshema.....
I started all over with all my settings.....
add a little right trim... and she hovers itself...
Thanks for the help... you forget alot taking a 2 year hiatus!

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T-REX 500 › 500 drifting to the left
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