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HelicopterRadio - Servo - Gyro - Gov - Batt › GY601 mysteriously reverses between flights
12-02-2007 03:36 AM  10 years agoPost 1
Helge-heli

rrApprentice

Eureka,Calif

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Anyone know what causes the Futaba 601 to reverse without being touched on the amp or transmitter?
My Fury Extreme would begin spooling up, and before the GV1 would kick in it would ground piro on the pad. I thought I had a bad 9251 at first, swapped it out and still did it. Installed a brand new 611 and programmed the same as my 601 was before I took it out and it did the piros on the pad too. Finally I remembered this symptom as being reversed gyro function, and switched it from normal to reverse.
I never touched the amp on the heli, or changed anything in my 9C, it just mysteriously switched on it's own. Just glad it didn't happen in the air
Anybody have this happen?
~Steve

Trex 700E-FC3,Trex600,Trex 700Nitro pro, Raptor 90 OS- 91~Raptor70 MD-500,MA-Razor~Cool power30%

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12-02-2007 03:50 AM  10 years agoPost 2
steve9534

rrKey Veteran

yakima, wa.

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Yes

I had it happen once and several others have, too. There was a thread on this a couple of years back ( sorry I don't remember the title of the thread) and there never was a good answer as to what caused it. The good news is that mine hasn't done it again in some 5 years of flying. steve.

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12-02-2007 05:17 AM  10 years agoPost 3
Helge-heli

rrApprentice

Eureka,Calif

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Hey thanks Steve,
Yes, I dug up that thread with a search earlier today, and did not get an answer either.
Since I installed a brand new 611 on my Fury,I now have a backup 601 that can back up my R-90 GY601, but I think maybe I should send it in to be checked out?I did talk to Hobby services Futaba tech, and they say if the gyro does not test out good, they generally replace them instead of repair. And the 601 is discontinued, so they would give me the option of upgrading or ditching it.
I wouldn't feel comfortable flying with that gyro unless it gets tested.
This is the first time its happened to me in my five years of flying and maintaining an average of six to eight helicopters.
Maybe futaba has a solution
~Steve

Trex 700E-FC3,Trex600,Trex 700Nitro pro, Raptor 90 OS- 91~Raptor70 MD-500,MA-Razor~Cool power30%

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HelicopterRadio - Servo - Gyro - Gov - Batt › GY601 mysteriously reverses between flights
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