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JR Heli Vibe - Airskipper - Sylphide - Venture > Vibe 50 electronics issue, need advice!!
 
 
vigor10
Senior Heliman
Location: Plano Texas

My Posts This: Topic  Forum		I need advice troubleshooting an issue. The issue is the tail has a severe twitch, it will do do this a short period and then all of a sudden the nose will take a hard left. Anyone seen an issue like this before? I am using the JR 8900 on the tail and the solid G. Any advice would be appreciated.
11-13-2009 07:52 PM
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Wingman77
Elite Veteran
Location: Pulaski TN US

My Posts This: Topic  Forum		is the tail free? no binding or slop?
11-13-2009 07:54 PM
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laughingstill
Elite Veteran
Location: Gainesville, Fl, USA

My Posts This: Topic  Forum		Tail bearing going under load?

Logo 600 VBAR Xera 4030, 3DMP-E VBAR soon!
11-13-2009 07:55 PM
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vigor10
Senior Heliman
Location: Plano Texas

My Posts This: Topic  Forum		The tail is free, no binding, bearings feel ok. I can remove the tail from #2 vibe and install.
11-13-2009 08:07 PM
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vigor10
Senior Heliman
Location: Plano Texas

My Posts This: Topic  Forum		Ok, I switched the tail, and the issue still exist.
11-13-2009 08:30 PM
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Dr Lodge
Elite Veteran
Location: Guildford, Surrey - UK

My Posts This: Topic  Forum		Sounds like electronic interference. Where's the gyro located, is it near a servo or electronic device?

Vibe 90, Vibe 50, Vigor CS x2,
Dyna-x, Knight 503D, Logo 10,
TRex 500, Furion, Gaui EP200
11-13-2009 08:33 PM
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GScott
Key Veteran
Location: Lewis Center, OH

My Posts This: Topic  Forum		What radio system? Could be a static hit or a Spektrum brownout.
11-13-2009 08:54 PM
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Wingman77
Elite Veteran
Location: Pulaski TN US

My Posts This: Topic  Forum		try switching tail servos first because that is really easy.
11-13-2009 08:57 PM
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vigor10
Senior Heliman
Location: Plano Texas

My Posts This: Topic  Forum		I have the 9303. I switced the gyro, still had the issue, so I had a spare 8900 and intalled it and the problem went away. I really appreciate the help guys. You all had great input.
11-13-2009 09:09 PM
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merlin3
Veteran
Location: dayton, ohio

My Posts This: Topic  Forum		8900g's are junk, before you buy another one try a bls251 or even a 9256. seen too many 8900g's fail or even just overheat and lock over hard during flight.

Justin
Aurora, 700N, vibe 50, 2 raves
11-13-2009 11:31 PM
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rocket_33
Senior Heliman
Location: Mount Pleasant, Michigan USA

My Posts This: Topic  Forum		Unfortunately I have to agree with ^^^^ mine started doing very much the same. Had been flawless and then all of a sudden it would do all sorts of strange piroettes. Tried a 2nd gyro thinking it was it but it turned out to be the 8900

Changed the servo to BLS251 and all has been perfect since. I did not have many flights on the 8900 and had zero crashes. Your other 8900 will probabaly go too unfortunately
11-14-2009 12:51 AM
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vigor10
Senior Heliman
Location: Plano Texas

My Posts This: Topic  Forum		That servo has been in the heli about a year.It had been fine until last weekend.
11-14-2009 01:21 AM
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KevinB
Senior Heliman
Location: Saskatoon, Saskatchewan, Canada

My Posts This: Topic  Forum		Another failed 8900 here in my Vibe in the spring. It started with random little twitches, then progressed to random 90 and then 180 degree piros over the last 5 test flights. The whole tail system was silky smooth. No good reason for it to fail. It was about 10 gallons old. I put in a BLS251 and all the problems went away. I have flown approx. 20 gallons since without incident.

KevinB
11-14-2009 01:46 AM
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JR Heli Vibe - Airskipper - Sylphide - Venture > Vibe 50 electronics issue, need advice!!
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