Which parameter for drifting tail

[wstuart]

Hi the tail in my e700 has a slight drift to the left. I think I've gotten everything sorted mechanically - I want to know which thing I could change in the fbl to try to fix this

This problem does get worse as head speed goes up and raising and lowering g the tail gain doesn't do anything for it

Other than this the Heli is perfect

[KSHeli]

When mine drifts its usually one of two things, and usually too much tail gain. The other thing might be the length of tail rotor control rod, usuallt adjust 2 turns one way or the other. Sorry getting old and never can remember which way, adjust 2 turns one way and if that doesn't help go 4 back the other way. This is just what has worked for me.

Edit: Bad torque tube or bearings have also caused this.

[DEMONjoe]

Sounds as if the tail is not trimmed right. It does not move with the torque, but the opposite direction, which indicates a control input or completely wrong trim. Make sure that the tail's signal in the Diagnose page is well centered, and that the tail has no mechanical pre-torque compensation (in maybe the wrong direction). It must be one of the two.