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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsFutaba CGY › Gy750 wobble gain question
06-04-2011 01:35 AM  9 years ago
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bathmagic

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Berwick,Victoria, Australia

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Gy750 wobble gain question
OK Guys, i need some help with this gy 750 for a mate of mine using it on a synergy n5,

Issues are as follows

Wobble on side to side, like aileron gain is too high. NOT on elevator

Gain on both axis's (elev and ail) is 80.

the tail is holding fine.

head speed is

hover 1850
idle 1 1950
idle 2 2050

EDIT, what gain is everyone using on cyclic's and tail?

any ideas where to start here guys as i am a Vbar guy not a Fubah guy !

Thanks Dale
ENV - Still laying it down !….Ohhh yeh !!!
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06-04-2011 03:00 AM  9 years ago
marc28

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new york

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💎Sustaining Member
lower the Ail gain until it goes away
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06-04-2011 03:11 AM  9 years ago
Dr.Ben

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Richmond, VA, USA

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Roll axis gain on the 750 is VERY commonly lower than the pitch axis gain. As noted, just lower it until the wobble subsides. Also note that the gain you can run at hover or HOLD rpm is typically LESS than the system will tolerate in idle up. T/R gyro gain for aeros and assuming a BLS251 will be in the 60-70% range.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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06-05-2011 06:18 AM  8 years ago
thenewguy

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Corvallis, Oregon Where there is liquid sunshine!

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bathmagic,

I have a big write up of this exact set up on a Synergy N5 and the CGY750 in the Synergy forums. You should have a read and make sure you read it to the end because I have made many changes along the way.

https://rc.runryder.com/t634017p1/

Thanks,
Chris
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