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Author Topic: VBAR users, what are your tail gain settings?  (Read 2178 times)

Offline Steviepoo

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VBAR users, what are your tail gain settings?
« on: March 18, 2014, 02:31:27 AM »
I thought I had my tail problems nipped in the bud when I took all the slop out from between the spur gear and pin but it seems to have had no effect. The tail still has a rather random twitch and sometimes will swing up to 45 degrees in a hover.

The expert params are set to stock and changing the main gain does little to help. My next approach will be to start tweaking the expert settings but I'm hoping to get some ballpark numbers to start with. On my E5s I just used Mr. Mels suggestion of setting the three numbers to something like 70 and it was gravy.

The engine is a used OS 91sz-h Hyper while I wait for the OS105 to get here. If I found out that the engine was running rough and not putting out smooth, consistent power it would make sense that the tail is all over the place but this is my first nitro and it seems fine to me.
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Synergy E5s: SK540, Ice2 80HV, Quantum 4125-560, Rail 606/96
Synergy E7: VBAR, HeliJive 120, Pyro 700-45, Rail 716/116
Synergy N7: VBAR, OS105HZ-R, Rail 696/106
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Offline Rob Cherry

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Re: VBAR users, what are your tail gain settings?
« Reply #1 on: March 19, 2014, 04:38:13 PM »
It sounds like you have a bum tail servo more than anything. What do you have and running at how many volts?
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Offline Steviepoo

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Re: VBAR users, what are your tail gain settings?
« Reply #2 on: March 20, 2014, 02:15:40 AM »
Oh really? I never thought about checking that. It's a Futaba BLS256HV running on 2S direct. It's used, but I bought it together with the BLS255HVs I have on the cyclic and they're fine so I never even considered the servo.

I've got an almost brand-new, known good Torq BL9188 I can borrow from my E5s to test that out.
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Synergy E5s: SK540, Ice2 80HV, Quantum 4125-560, Rail 606/96
Synergy E7: VBAR, HeliJive 120, Pyro 700-45, Rail 716/116
Synergy N7: VBAR, OS105HZ-R, Rail 696/106
Citizen #112

Offline Darren Lee

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Re: VBAR users, what are your tail gain settings?
« Reply #3 on: March 20, 2014, 05:17:25 AM »
I agree with Rob.  I'm running gain at 100% with the same servo, also on 2S direct.  My tail performance is excellent.

The motor would have to be running nasty rich to cause tail issues like that.
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Offline Jean-Luc Bolduc

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Re: VBAR users, what are your tail gain settings?
« Reply #4 on: March 20, 2014, 06:19:54 AM »
I run 80% in colder weather and 100% in summer.
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Offline Steviepoo

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Re: VBAR users, what are your tail gain settings?
« Reply #5 on: March 20, 2014, 01:58:51 PM »
Well I'll be damned. I put the 9188 on there and presto, no more problems. Thanks!
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Synergy E5s: SK540, Ice2 80HV, Quantum 4125-560, Rail 606/96
Synergy E7: VBAR, HeliJive 120, Pyro 700-45, Rail 716/116
Synergy N7: VBAR, OS105HZ-R, Rail 696/106
Citizen #112

Offline Chris Wall

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Re: VBAR users, what are your tail gain settings?
« Reply #6 on: June 09, 2014, 06:52:28 PM »
Quote from: Steviepoo on March 20, 2014, 01:58:51 PM
Well I'll be damned. I put the 9188 on there and presto, no more problems. Thanks!

With the 9188 what general gain value did you end up with?
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Offline Mark Burberry

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Re: VBAR users, what are your tail gain settings?
« Reply #7 on: June 09, 2014, 07:02:24 PM »
Around 90 was the sweet spot for my setup.

Cheers,
Mark
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Offline Clarence Creer

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Re: VBAR users, what are your tail gain settings?
« Reply #8 on: June 10, 2014, 06:25:19 PM »
I am able to run 100 on the E7. Using the BLS276sv


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Offline bkervaski

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Re: VBAR users, what are your tail gain settings?
« Reply #9 on: June 13, 2014, 10:00:35 AM »
Same here, 100 with the BLS276
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