Anti torque does not hold in reverse

[passe partout]

Hello, during fast walks back with my 450 trex, the anti torque does not hold the axis he picks up suddenly, what setting I have to do.
The gain seems good to me before it is stable and do not oscillations.
I speak in flight by not moving forward
Thank you

[ZeXx86]

Hello,

I am not sure if I understand correctly, but it is possible that you are talking about Fast forward flight and sudden elevator movement (usually up).
This is caused due to small Cyclic Ring and/or too high Collective Pitch. Please increase Aileron/Elevator Range in the Limits tab or decrease Collective Pitch range. Then all should be fine.

[passe partout]

Hi Thomas, in fast reverse, the anti couple picks up and the helicopter turns quickly.
I use a translator it's not easy; O))

Si qqun veut traduire:
Lors des marches arrières rapides l’anti-couple décroche violemment et l'hélicoptère fait un demi tour rapide pour se remettre dans l'axe de vol.
Merci

[passe partout]

The anti-torque does not hold in reverse it violently unhooks

[ZeXx86]

Oh, I dont know what Anti-Torque is
Can you explain in other words please?

Is it Aileron, Elevator, Rudder?

[passe partout]

rudder

[ZeXx86]

Now I understand.

Please check Limits/Rudder End-points. It must be configured in the full extent, especially closer to the boom.

Next important thing is to set RPM high enough, because with a small headspeed rudder efficiency can be too low.

[passe partout]

Now I understand.

Please check Limits/Rudder End-points. It must be configured in the full extent, especially closer to the boom. MAXI

Next important thing is to set RPM high enough, because with a small headspeed rudder efficiency can be too low. MAXI

[passe partout]

I think I have a better flight with the setting "Pirouette consistency" increased from 160 to 177.
Cdlt