Tail wag?

Hi, I have assembled a Goblin 570 Sport as per the manual and have done my first setup with the NEO/Vcontrol.

I have hovered and have done 2 slow flights so far and I am getting a slow but consistent tail wag when in hover. The Tail Gain is set to 70. Any suggestions on what to do? Thank you!

If its new heli, most of tail wag is mechanical.

Jepp, mechanical. I just solved the issue with a Goblin 570 of a friend. The mechanic of the tail rotor was sluggish.

Gruß Jürgen



Edited 1 time(s). Last edit at 05/22/2018 03:07PM by JMalberg.

JMalberg Wrote:
-------------------------------------------------------
> Jepp, mechanical. I just solved the issue with a
> Goblin 570 of a friend. The mechanic of the tail
> rotor was sluggish.


Anything specific you can share so that I know what to look for? Thanks!

Hi Serge,

anything binding or loose, the tail pitch slider showing a breakaway torque, even the tail rotor running not true, a bent shaft or hub, can cause or facilitate a tail wag.
Also thrust bearings mounted the wrong way, or binding under load (squeezed ball cage, or ball cage touching a ring).
A better servo might help (depending on what you have already), but it's throwing money at the symptoms, it would be better to identify and remedy the cause.

Kind regards

Eddi

Born to fly ...
forced to work.

As mentioned before

- tail pitch slider has to move soft and smooth
- squeezing the ball cage of the blade holder
- squezzing the ball cage of the rear linkage
- slightly loosening the screw on the diverting(?) lever

Sorry, but my english is to poor in that

Gruß Jürgen