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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsV-Bar › mikado Vbar trouble
09-09-2013 02:07 AM  5 years agoPost 1
Snowviper47

rrNovice

Skokie, IL, USA

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Would any one know anything about mikado vbar? Today on my second flight i was about to take off, the heli was on the ground I spooled it up and for some reason the heli started tilting to the right like crazy by its self, I cliped the ground with the main blades. Nothing crazy but it wouldn't want to initialize for some reason. I unplugged it and plugged it back in and the swash just kept moving up and down. I'm running 8.3 volts all around on high voltage servos with Hercules bec Any ideas?

///M LOW IS A LIFESTYLE ///M

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09-09-2013 03:30 AM  5 years agoPost 2
Rsams

rrApprentice

Fort Dodge, IA

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What kind of radio and also what does the data log off the vbar say

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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09-09-2013 04:01 AM  5 years agoPost 3
Sam2b

rrElite Veteran

Tacoma, WA

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The issue may be with the hercules BEC. I have experienced the exact same Vbar [both] symptoms with another BEC (sparing you all the details).

* How long have you been flying this heli with this BEC and Vbar?
* What color sensor? (black, blue, yellow, silverline?
* Was this heli in a crash recently before the issue started?

If this is the first time after many flights and nothing has changed, then this is a bit of a mystery except if there is a serious vibration.

_Sam B_

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09-09-2013 04:05 AM  5 years agoPost 4
Snowviper47

rrNovice

Skokie, IL, USA

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Im running a futaba 8fg updated radio with Black vbar 5.2 with sbus reciever. I have a brand new goblin 700 with 8917hv servos. Never vrashed. I flew the heli 6 times with 8.3 volts from the bec. And today all of a sudden it started doing it. Ive been told that the wire cant hanndle That much voltage and its umder voltage. Im dumb founded by the problem

///M LOW IS A LIFESTYLE ///M

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09-09-2013 04:10 AM  5 years agoPost 5
Kauaiguy

rrNovice

Hawaii

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Check the log ,it should have caught your problem.

I'd rather be flying!

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09-09-2013 04:35 AM  5 years agoPost 6
PJRono

rrKey Veteran

Minnesota, Ya!

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If your endpoints in the TX got moved and are too high it will cause this, but only when you have the cyclic stick far enough over that it will bind.

If you skip me I can't play!

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09-09-2013 04:36 AM  5 years agoPost 7
PJRono

rrKey Veteran

Minnesota, Ya!

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Double check your Tx calibration settings using the computer.

If you skip me I can't play!

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09-09-2013 04:37 AM  5 years agoPost 8
PJRono

rrKey Veteran

Minnesota, Ya!

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If the BEC was working I would look somewhere else. WR stuff usually just doesn't stop working.

If you skip me I can't play!

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09-09-2013 04:39 AM  5 years agoPost 9
PJRono

rrKey Veteran

Minnesota, Ya!

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If it does the jumping right after you plug it in and keeps jumping (doesn't initialize) you may need to reboot the control box.

If you skip me I can't play!

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09-09-2013 04:43 AM  5 years agoPost 10
PJRono

rrKey Veteran

Minnesota, Ya!

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If it's electric, I would turn on the TX, set the TX to throttle hold (or unplug the ESC so it can't spin up) and center the collective stick, then power up the heli. This way all the throws should be centered so if it's over throwing it will/should still
initialize.

If you skip me I can't play!

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09-09-2013 04:49 AM  5 years agoPost 11
PJRono

rrKey Veteran

Minnesota, Ya!

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What size BEC are you running WR makes several?

If you skip me I can't play!

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09-09-2013 06:35 PM  5 years agoPost 12
Rsams

rrApprentice

Fort Dodge, IA

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Download the data log it will tell you a lot of good information to figure out what is wrong

Ryan,Team JR, Team Morgan Fuels, Team KDE Direct, RCBearings.com Tech Rep

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