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HomeAircraftHelicopterFlybarless Rotor Head SystemsFutaba CGY › Settings for Goblin 500 tail
02-25-2013 03:51 AM  5 years agoPost 1
Adam Landefeld

rrApprentice

Lehi, UT, USA

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Hi all,

Spent some time getting the Goblin 500 tail dialed in today and just thought I'd share my settings.

I'm running all the default settings for the cyclic based on inputting the heli size and just running with it.

I did have a pretty bad tail wag upon maiden and tried a number of settings but ultimately came down to just a few things above and beyond the default settings.

1- Control out delay up to 15 for both sides
2- Stop delay = 160%
3- Sensor = middle
4- max pyro rate = 660

My new BLS256HV had not arrived so I used a brand new Protek 250S tail servo.

Hope that helps anyone with their Goblin 500 tail. The head just ends up perfect!

-Adam

Futaba Factory Team
Team FlightPower
Thunder Tiger

https://www.facebook.com/UtahHeli

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02-25-2013 04:25 AM  5 years agoPost 2
Dr.Ben

rrMaster

Richmond, VA, USA

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When the 256 arrives, put everything back to default except the rotational rate and readjust if needed. Half of what you adjusted affects stop behavior, not the tendency for oscillation when no tail command is being entered.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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02-25-2013 05:51 AM  5 years agoPost 3
Adam Landefeld

rrApprentice

Lehi, UT, USA

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Yeah I typically do not like cranking up the stop delay... usually never have to touch it, control out normally handles any weirdness on a smaller machine.

I was also looking at the gain tracking as a setting to change but could never tell a difference between it set to +20% all the way to -20% (it limits at 20 on each side). The fact that stop delay was the biggest item to affect the tail wag does mostly feel like a stop issue.

Hopefully the 256 will arrive tomorrow :-) This protek tail servo is a very decent little servo but I think it would be much better on a large machine.

-Adam

Futaba Factory Team
Team FlightPower
Thunder Tiger

https://www.facebook.com/UtahHeli

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02-25-2013 11:55 AM  5 years agoPost 4
rstacy

rrElite Veteran

Rochester, NY

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Adam,
I agree with Ben regarding going back to defaults. I suspect that the 256 will resolve your wag problems.

Our 500s are running at default settings using the BLS256.
One 500 had a wag that was quickly traced to drag in the system which was being aggravated by cold temperatures.
A little ball link work and light oil for the slider and it was good to go.

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02-26-2013 06:56 AM  5 years agoPost 5
Adam Landefeld

rrApprentice

Lehi, UT, USA

My Posts: All  Forum  Topic

Ok Ben and Ray,

This should put me at ease :-) Back to my standard tail servo and just set all the settings back to default. Should be golden!

Oh and Ray, you talking about one 500 tail that was sticky reminded me of when I learned something about "non-self-lubing" helis (aka nitros LOL). I had a tail wag on my 700 and Ben told me that I must have something sticking in my tail. I was thinking no way, I set my machines up right but... the tail slider was indeed sticking bad because I'd forgotten electrics don't lube themselves all the time! A little tri-flo was the best "adjustment" for tail bounce there could be.

Anyway, thanks gents, tomorrow's lunch break is flying time!

Futaba Factory Team
Team FlightPower
Thunder Tiger

https://www.facebook.com/UtahHeli

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02-28-2013 01:45 AM  5 years agoPost 6
Adam Landefeld

rrApprentice

Lehi, UT, USA

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Hey Ray, what servo arm are you using on those 500s? I am using the Secraft 15mm with the ball in the outer-most hole. I installed the BLS-256HV and moved all settings back to default and still have the same wag I was dealing with with the previous servo. I am thinking the push rod may be sticking in the support mid-boom but if that is not it I am running low on ideas :-) I didn't "spread" the support as per Bert's advice so hoping that is it.

-Adam

Futaba Factory Team
Team FlightPower
Thunder Tiger

https://www.facebook.com/UtahHeli

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