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Hitec RCD ProModeler
HelicopterRadio - Servo - Gyro - Gov - Batt › Logictech 6100 creeping after connecting glow or trying to start
rowdog_14

Senior Heliman

Austell, GA

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So I have been flying my raptor and I noticed the tail would slowly creep to the left. It was not doing it last year and I have not crashed it. Based on searching the gyro is probably dead and needs to be replaced.

It only creeps after connecting the glow or the starter. If I start the heli it stays locked in just fine. I am guessing the replace the gyro and tail servo since there is not really any support for their combo. Any ideas? I have everything centered on the radio for the tail.

I have a gy401 that works fine I can replace with but the logictech really locked in better than the gy401 and hopping it is still good

04-07-2017 07:24 PM
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EEngineer

Elite Veteran

TX

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"It only creeps after connecting the glow or the starter."

"If I start the heli it stays locked in just fine."

How do you start the heli without connecting the glow AND use the starter?

Not sure if I understand what you meant? From the description, "connecting" seems to cause your gyro issues.

Do you have ground strap from your engine to the negative of your flight battery pack?

Logo 600SXs, 700XX, 800XX

04-07-2017 08:19 PM
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rowdog_14

Senior Heliman

Austell, GA

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can not start without connecting the glow and starter you are understanding correctly that was a reference to when the issue starts. Never had an issue with not having a ground as you mentioned but I can try that. This combo worked fine for the last two years.

04-08-2017 01:24 AM
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EEngineer

Elite Veteran

TX

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A MEMS gyro can be affected by high freq. vibrations, in addition to electrical interference.

In the range of ~15 - 30kHz for FBLs....yours is just a single axis gyro....don't know where the vibe band is....unless you've opened it and identified the MEMS gyro IC.

Anyway, a squeaky bearing could cause such vibes...and if high enough freq., you couldn't hear it.

Perhaps a "lube job" might help. Loose linkages?

Just a thought.

Logo 600SXs, 700XX, 800XX

04-08-2017 06:59 AM
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rowdog_14

Senior Heliman

Austell, GA

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Ok thanks, just killing me it worked fine when I put it up last season

04-08-2017 08:42 PM
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HelicopterRadio - Servo - Gyro - Gov - Batt › Logictech 6100 creeping after connecting glow or trying to start
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