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Goblin 380 › Ever slight tail wag......
07-31-2016 03:07 PM  14 months agoPost 1
cliff600

rrNovice

Palmyra, Va.

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I just finished setting up my 380....it has a BeastX and I am running a head speed of 2350 up to 2500 and the gyro gain is now at 55 or 60. I have tried it from 45 to 65 and I cannot seem to get the ever slight tail wag out of it. Any ideas on what I need to try to change?

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07-31-2016 08:25 PM  14 months agoPost 2
Heli Fanatix

rrVeteran

Fountain Valley, CA

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Here is what I suggest:

- on the servo horn, use the hole second from center
- remove the plastic ball link on the rear & see if it's sticking
- sometimes too much loctite jams the mechanism

The amount of tail gain is relative to:
- TX
- FBL
- Servo brand
- if the the heli is mechanically sound, than use whatever gain that will hold the tail & nose case tail wag @ high speeds.

Example:
stock tail servo has a gain of 55
new JR tail servo has a tail gain of 25

- Scott

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07-31-2016 08:32 PM  14 months agoPost 3
crunch

rrApprentice

Peterborough, England

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I had the same issue it was the tail slider sticking,
I bought mine second hand with 6 flights on it,
I took the tail slider apart cleaned it up and now no problem.

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07-31-2016 10:45 PM  14 months agoPost 4
Scanman

rrApprentice

Centralia, WA USA

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I don't know any other information on your setup other than what you posted, but the manual doesn't show any recommended RPM less than 3250. You maybe running a bit low. I run 3450rpm doing sport/ light 3D. Smack pilots are running like 3600-3700. These little guys like Rs. I know about the tail wag thing and it is not uncommon, nor easy to tune out. I get some wag at 3200rpm in I/U-2, at 3450rpm in I/U-3 it's fine.

I fly iKon FBL and am not well versed on the BeastX. For me, the tail gain is the first to get dialed in before advanced adjustments. If I have a slow wag, I would increase the tail gain. If fast wag or oscillation with turns I would back the tail gain down a little at a time till its gone.

One other thing I found about my G380....fly it!! If I just hover and watch every little glitch it makes it will bug the crap out of me. As long as it takes off, flies well without oscillations or blowing out I'll keep it. Hope I was of help, best wishes.

Vic
G380, G500, G630C, G770C
Aerodyne MD500E 600
Ecureuil AS350 700, Bell 222 800
Jeti DS-14 AMA 611227

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11-13-2016 06:28 PM  11 months agoPost 5
djtommyboy

rrNovice

Cherry Hill

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Ok,, sorry just saw this. This will be helpful for my 420 too. This problem just started when I switched to vbar yesterday

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11-15-2016 11:19 AM  11 months agoPost 6
cliff600

rrNovice

Palmyra, Va.

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I turned my head speed up a little and it fixed it.....guess it was too slow

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11-15-2016 11:20 AM  11 months agoPost 7
djtommyboy

rrNovice

Cherry Hill

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I did the same.. Raining here so I cant fly. Gonna try it tomorrow

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11-16-2016 01:42 AM  11 months agoPost 8
djtommyboy

rrNovice

Cherry Hill

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Upped my headspeed and Tail gain and im good! Flew great tonight

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11-16-2016 02:20 PM  11 months agoPost 9
Richardmid1

rrProfessor

Leeds, England

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You have probably simply masked the problem. I would still check for any tightness in the tail pitch mechanics by removing the control rod from the servo and moving the tail pitch by hand, there should be little to NO resistance. Also check the length of your servo arm, ideally you want your servo to move 90-100 degrees from left to right rudder limits.

60% of the time, it works every time!

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11-16-2016 02:22 PM  11 months agoPost 10
djtommyboy

rrNovice

Cherry Hill

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is it ok to "Lube" the tail shaft ? lol With grease where it fits the holder?

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Goblin 380 › Ever slight tail wag......
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