Got a wobble!!!

[pugdavey]

Just got my velocity 50 converted to fbl.
Had it setup with the totalg flybared to get the tail and gov working well first. It was flying lovely with this setup (just the gov playing some times !!)
Went out today up into a hover and all's ok Fc gain at 50. Then into st1 and its got a alleviator wobble that would shake it to deaf, Flick the Fc gain off and it stops ??
All other settings are stock.

[Tommy Wagner]

Sounds like the gain is too high what kind of blades are you using?

[pugdavey]

Got spin 620 but there FB. I did notice my pinion was not very central after I put the new clutch bell on !! Might be vibes ? Head speed is 1800 st1 1950 st2 2050


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[Tommy Wagner]

Where is it mounted and what's the tail doing? What kinda of tape?

Also if the spindle dampeners are new put a little lube on them so the spindle can float the little bit it needs


Tommy

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[pugdavey]

Its up front and mounted on the supplied tape.
Tail is rock solid
The head has new dampeners and all greased up. I did fly it fine at 1850rpm with Fc 50&60
increase the rpm and it wobbles like a low head speed ?

[Tommy Wagner]

Usually if it vibes the tail is the first to notice try another set of blades any set see of the same thing happens
If you have the tools needed check the cg of each blade maybe off a little or one could weigh a bit more
I run my gain at 48 on my N5c so you can try dropping the gain a bit just to see of it helps

Tommy

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[Sky Dancer]

I did fly it fine at 1850rpm with Fc 50&60
increase the rpm and it wobbles like a low head speed

Sometimes new dampers will cause a wobble at lower head speeds until they loosen up some. I've even sanded the dampers a little to help stop the wobbles at low head speed.

Don C