Tail issue on agile 7.2

[nzflyer]

Hi still having a tail wag. But it only wags when i start to pitch up. Doesn't matter if it is hard or soft pitch up. I have tried most things,
Rudder delay is in zero. Pitch consistency is 170. I have tried rudder delay higer with no luck. Using a kds 690tail servo brushless.
Speed: 0.039sec/60°@8.4V


Sent from my iPad using Tapatalk

[Gtamas]

HI!

On trex 700 with RJX tail servo with 0,03 sec/60 i had the same issue. Try piro consistency 190-200. your tail servo is fast enough. You may need to decrease the tail gain a bit to do this. if the issue is still there, then the gov gain is very high. i have my governor gain with align 750MX castle 120A at 6 or 7. rpm is 1950.

And bump the tail refres rate to the max your servo is capable. ( mine is 1520us 333hz, and the holding is good)

[icare]

Rjx standard tail servo frequency is 760 µs 333hz

[Gtamas]

yes, there is a typo, cyclics are 1520 333hz, tail is 760 333hz. In this case this is irrelevant.

[nzflyer]

Spec for tail servo say 720us 560hz, shall i try 333hz


Sent from my iPad using Tapatalk

[nzflyer]

Typo 760us


Sent from my iPad using Tapatalk

[Gtamas]

No, leave it at 560hz, but try to increase the piro consistency, it's the "I" gain in other systems, it is also known as heading hold gain.

[ZeXx86]

Hi,

can you tell me how you have configured mechanical tail center position?
Can you share your settings, please? You can attach 4DS file here.

[nzflyer]

Have solved the problem i think. Gov gain was to high. Will do some more testing in next couple of days.
Thanks people for ya input


Sent from my iPad using Tapatalk

[ZeXx86]

Perfect, thank you very much for the info!