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Other › MY VE Dances when spooling down... help!
12-13-2004 01:04 AM  13 years agoPost 1
Stack

rrVeteran

Bethlehem, PA

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Hi guys ... back again. I am still new to the VE so forgive me

After spooling up and managing a very brief hover, I touch down and the VE decides to dance ... a very scary dance. It appears as if it is going into some sort of seizure. This is new .. it did not do this a couple of days ago. Any ideas? I have not crashed or banged it around...

I think it is some sort of out of balance problem but what approach should I take if I am correct? I did pop the main blades off for a few minutes ...

- Thanks in advance .... Stack

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12-13-2004 01:33 AM  13 years agoPost 2
DeanM

rrApprentice

Oklahoma City, OK

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Hi Stack,

Sent you a PM ... Dean

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12-13-2004 02:44 AM  13 years agoPost 3
Stack

rrVeteran

Bethlehem, PA

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Thanks again!
Dean .. got it, BIG help... thank you!

The bobbing appears to have been caused by my switching of the main blades.

Tomorrow night I do a tear-down and build her back up my way.

Thanks for all of the info Dean, it really has helped me tremendously.

-Rob

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12-13-2004 04:36 AM  13 years agoPost 4
KnimRod

rrApprentice

Central Michigan

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If you don't have the blade bolts in the grips tight enough, it will act a little funny too.

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12-13-2004 03:13 PM  13 years agoPost 5
DeanM

rrApprentice

Oklahoma City, OK

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One of the fellows here asked me to post the info I sent to Stack regarding my set up on the stock Voyager E with the Eclipse 7 TX ... I apologize for cutting some interested pilots out of the loop with my PM.
----------------------------------
Here's the info:

I'm not sure why the previous owner had the throttle trim at -50%? Is this what he has on the main throttle trim or in subtrim?

My Throttle subtrim is at 0% and basic on-set trim is also at 0%.

Here are my current throttle curves:

Normal: 0/80/100/100/100
ST1: 30/80/100/100/100
ST2: 0/80/100/100/100

Here are my current Pitch curves:

For all modes (Normal, ST1 and ST2): -1/+4/+6/+9/+10

I use some expo: -8% on cyclic and +4% on the T/R, but you might want to play around a little and see what feels good to you.

My Swash settings are Lt Channel +70/Front Channel -70/Rt Channel +70.

My Gyro settings (using the 401) are: Normal 72%/ST1 72%/ST2 20%/ST3 (Hold) 20%

All of this work fine as I don't do any aerobatics with the Voyager E. It's my hover in the yard (we have a couple of acres) on a whim machine, and I do emphasize that this is a totally stock heli. I run Cermark GP3300 8cell (9.6V) NiMH packs. (Note: with this set up I do run the performace pinion on the stock motor ... Gives me 5-8 minutes of flight time and dramatically improved performance)

You'll probably see that my Idle Up 2 (ST2) set up allows me the same flight characteristics but with the gyro in rate mode rather than AVCS (Heading Lock) ... Kind of handy sometimes for experimenting

Normally I spool up in Normal then switch to Idle Up 1 (ST1) to keep the head speed up at lower collective but keeping the gyro in AVCS mode.

You might want to kind of disassemble all of the flight control related parts and go through the full setup and alignment in the Voyager E manual, including initializing the ESC. Then you'll be sure you have all the lengths, etc correct. It really doesn't take too long, and will allow you to get everything set as you would like.

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12-14-2004 06:24 PM  13 years agoPost 6
AWDEVO8

rrNovice

chicago,il

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Mine did that too. It was simple to correct. I'd check 2 things. 1ST, the spindle could be bent. 2ND, the anti-rotation pin came out of its groove. Very easy to fix.

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12-20-2004 02:26 AM  13 years agoPost 7
Stack

rrVeteran

Bethlehem, PA

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Hmmm
IT seemed to have gone away , the dance of death that is. But then it came back...... the dance is a forward/backward bounce.

It seems to show up only in certain RPM ranges. I found that the flybar is ever so slightly bent. Once removed the head spins up nicely (no vibe)... so, I am assuming this is the cause of the vibration.

Will let you know how it goes.

Thanks!

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