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Futaba-RC JR AMERICAS Heli-Max
Scott1115

Elite Veteran

Greenwich, CT

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Originally after setting up my trex 600N with Vbar v5.1 pro I had these problems:

1. The piro rate is too slow even though it is set to 110%. I reset the endpoints and it seems to ave fixed the problem.
2. The gain was at 75. I've slowly increased the gain to 120 and it's better but still wagging.
3. The cyclic is a bit sluggish compared to the FB head. I don't want it to be more twitchy, just more "connected." It's response rate to input is okay, just does not feel crisp - best way to explain it. I added 20% paddle simulation and it's perfect now.
4. Lastly, in FFF it leans to the left (port side), but seems to fly straight. Just odd, but can live with it. (It leans noticeably more than my other 600N).

Please help; any thoughts about how to remove the wag? Seems like from 105 - 120 there is no difference.

Compass 7HV, Trex 550E
RCRCC

02-04-2012 Over year old.
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Steff Giguere

rrProfessor

St-Eustache, Quebec, Canada

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What ESC are you using? Electric motors are the same as nitro if the motor isn't happy the tail will wag. If you are using CC ICE ESC then in the lower the gain in the program, for this you can go to Custom setting and then lower the gain by say 3 points and see if it helps, if it's better but still wagging then lower some more.
Good luck.

Team Synergy, Rail blades, Team Scorpion, V-Team

02-05-2012 Over year old.
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Scott1115

Elite Veteran

Greenwich, CT

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600N = nitro

Compass 7HV, Trex 550E
RCRCC

02-05-2012 Over year old.
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Furyous

Veteran

Detroit, Michigan

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What are you limits for the t/r servo in the vbar set at?

02-05-2012 Over year old.
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Scott1115

Elite Veteran

Greenwich, CT

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114 = CCW
120 = CW
RC deadband = 5
acceleration = 55
P gain = 80
I gain = 60
Stop gains = 20 each
optimized 70/70

Compass 7HV, Trex 550E
RCRCC

02-05-2012 Over year old.
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MrMel

rrProfessor

Gotland

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Slow wagging that only get faster/harder with higher gain is mechanical rather than settings.
Governor can also be the reason.

Binding somewhere or not optimal tailservo.

You can tweak the tail a bit more as i do in my adv tailweaking vid, but i do not think it will help for the wag.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

02-05-2012 Over year old.
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Scott1115

Elite Veteran

Greenwich, CT

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The wag was never hard, or "angry," It did get better as the gain was turned up, but seems to have leveled off. The amplitude of the wag is small, a few degrees in either direction.

BLS 251 servo - appears okay

went through tail mechanics - appears okay

I dont see any binding

Thanks MrMel

Compass 7HV, Trex 550E
RCRCC

02-05-2012 Over year old.
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