May 12, 2024, 07:12:31 AM

Author Topic: Tail wag in Vbar  (Read 9384 times)

Offline tek18x

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Tail wag in Vbar
« on: January 08, 2014, 05:05:59 PM »
Can't fix this one.

i went from 40% gain to 96% gain in the TX

which is 65-133 gain in the vbar

goes from slow tail wag at 65 to almost gone but still there tail wag at 133 gain ( WHICH IS CRAZY GAIN ) but on figure 8's you can here it pitching and fighting itself so 133 is obviously way too high.

Came home and the ball links and slider seems to be fine! very smooth

WHat can i do to fix this?
Gaui X3 and Synergy E5
Vbar all around
Dx8

Offline wbfines

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Re: Tail wag in Vbar
« Reply #1 on: January 08, 2014, 05:12:10 PM »
Gov gain too high maybe. Running vbar gov or ESC gov?  What are you tail endpoints in vbar software?

Offline tek18x

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Re: Tail wag in Vbar
« Reply #2 on: January 08, 2014, 05:13:16 PM »
Gov gain too high maybe. Running vbar gov or ESC gov?  What are you tail endpoints in vbar software?

castle creations gov to 2150 HS ( highest it will let me with a 12T pinion)

endpoints at 110 each way
Gaui X3 and Synergy E5
Vbar all around
Dx8

Offline wbfines

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Re: Tail wag in Vbar
« Reply #3 on: January 08, 2014, 05:15:59 PM »
What is castle gov gain?  Whenever I had a slow wag, was usually binding.

Offline tek18x

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Re: Tail wag in Vbar
« Reply #4 on: January 08, 2014, 05:16:53 PM »
What is castle gov gain?  Whenever I had a slow wag, was usually binding.

gov gain was 25, wasn't sure what to change this to.

I purchased this heli used and gain was 12 so i pushed it to 25 (medium) maybe try 12?

Heli wasn't set up great by previous owner so i changed most of it.
Gaui X3 and Synergy E5
Vbar all around
Dx8

Offline wbfines

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Re: Tail wag in Vbar
« Reply #5 on: January 08, 2014, 05:18:58 PM »
I would def go lower. Try lower. If that's doesn't help, disable gov and eliminate it and tune tail that way. Then bring gov back in

Offline tek18x

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Re: Tail wag in Vbar
« Reply #6 on: January 08, 2014, 05:20:23 PM »
I would def go lower. Try lower. If that's doesn't help, disable gov and eliminate it and tune tail that way. Then bring gov back in

just curious, how would gov gain effect this?

also for that servo i have the 2nd option down in tail servos for frequency, going to double check this is right.
Gaui X3 and Synergy E5
Vbar all around
Dx8

Offline wbfines

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Re: Tail wag in Vbar
« Reply #7 on: January 08, 2014, 05:22:45 PM »
To high of gain can cause a "pulsing" effect.

Offline tek18x

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Re: Tail wag in Vbar
« Reply #8 on: January 08, 2014, 05:23:47 PM »
To high of gain can cause a "pulsing" effect.

I see, okay perfect thank you very much.

Will experiment with this tomorrow
Gaui X3 and Synergy E5
Vbar all around
Dx8

Offline wbfines

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Re: Tail wag in Vbar
« Reply #9 on: January 08, 2014, 05:24:48 PM »
Good luck.

Offline Scott Anderson

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Re: Tail wag in Vbar
« Reply #10 on: January 08, 2014, 10:31:31 PM »
Try @ 18% gov gain that seems to be where the castle gov likes to be. Which Motor & ESC is it? Make sure you have the latest software version loaded in your ESC also.
« Last Edit: January 08, 2014, 10:36:42 PM by andersons »
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Offline tek18x

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Re: Tail wag in Vbar
« Reply #11 on: January 08, 2014, 11:27:08 PM »
Try @ 18% gov gain that seems to be where the castle gov likes to be. Which Motor & ESC is it? Make sure you have the latest software version loaded in your ESC also.

Scorpion hkiii-1025-1000kv and CC ice 120hv v2
Gaui X3 and Synergy E5
Vbar all around
Dx8

Offline Scott Anderson

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Re: Tail wag in Vbar
« Reply #12 on: January 09, 2014, 12:45:54 PM »
I would suggest the 13T for that set up and target 2300 - 2400 rpm I think you'll like the performance

Edit sorry I meant to say 15T not 13T for that RPM
« Last Edit: January 09, 2014, 01:17:38 PM by andersons »
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Offline tek18x

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Re: Tail wag in Vbar
« Reply #13 on: January 09, 2014, 12:49:58 PM »
I would suggest the 13T for that set up and target 2300 - 2400 rpm I think you'll like the performance

I'm about to throw a 14T on it ( what i have, i don't have 13T currently )

2350 HS, and see if this fixes it.

I tried fixed end points at 95% flat curve today with 12T and no luck, same stupid wag  :(
Gaui X3 and Synergy E5
Vbar all around
Dx8

Offline Scott Anderson

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Re: Tail wag in Vbar
« Reply #14 on: January 09, 2014, 01:16:13 PM »
Its not going to govern in fixed-end point mode.

Try 14T @ 2150-2250 and 18% gain
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