Tail drifting slowly

[CaptHal8HS]

Hey Guys;
I have a drifting tail. The heli's nose slowly drifts to the left; the heli is slowly piro'ing CCW. It's not my gyro rate; I played with that and it didn't help.
Any ideas?
Thanks.

[gdawgs56]

sorry dont really know. One thing it could be is the tail servo?!?! just a guess

[HeliQuebec]

In my case it was the tail servo. I changed it and solved the drifting trouble.

[Manyc]

I have the same problem. Tried swapping out the servo. But I may have other issues as mine tends to tilt one direction. I think I may have an unbalanced head. And happy for that to be taken either way.

[CaptHal8HS]

Originally Posted by HeliQuebec

In my case it was the tail servo. I changed it and solved the drifting trouble.

Did you replace it with the same servo? Or did you use a different brand/model? Did HH assist in any way? My bird is relatively new with little time on it.
Thanks!

PS
I'm going to try the tip offered in this thread and let you know.
https://www.helifreak.com/showthread.php?t=427666

[CaptHal8HS]

So, I checked my tail servo and the alignment was a bit off. Following the procedure in the link above, I had to re-position my servo a tad and tighten it up as it was a tiny bit loose. I adjusted the travel pot a touch as well. I'm hoping that will solve my tail drifting problem.

[spykez]

Originally Posted by CaptHal8HS

So, I checked my tail servo and the alignment was a bit off. Following the procedure in the link above, I had to re-position my servo a tad and tighten it up as it was a tiny bit loose. I adjusted the travel pot a touch as well. I'm hoping that will solve my tail drifting problem.

Ah... that may be the problem. Have a go. Remember other things can get loose too. The fins, boom supports. Vibes.

[CaptHal8HS]

Well, I got down to the park today to hover my 450 after making the adjustments I previously stated. The drift is much better - just drifts slightly. I turned up the gyro gain to 76.5% from 73.0% and it only helped slightly.
If I let go of the cyclic, she still wants to tilt/drift to the left, so I fixed that with a couple of clicks of right aileron trim.
Finding the right battery position is a pain. If I move the battery forward on the tray such that the top edge of the battery lines up with the long edge of the servo that is recessed in the battery tray, the heli is in pretty good balance. I flew it that way without the canopy and I had very little forward/rear pitching to deal with. The only problem is that I can't get the canopy on the heli! There's just not enough room in the nose of the canopy. My ESC wires are protruding out pretty good and the top of the battery collides with the inside of the canopy.
Any suggestions?
Thanks!

[gdawgs56]

Originally Posted by CaptHal8HS

Well, I got down to the park today to hover my 450 after making the adjustments I previously stated. The drift is much better - just drifts slightly. I turned up the gyro gain to 76.5% from 73.0% and it only helped slightly.
If I let go of the cyclic, she still wants to tilt/drift to the left, so I fixed that with a couple of clicks of right aileron trim.
Finding the right battery position is a pain. If I move the battery forward on the tray such that the top edge of the battery lines up with the long edge of the servo that is recessed in the battery tray, the heli is in pretty good balance. I flew it that way without the canopy and I had very little forward/rear pitching to deal with. The only problem is that I can't get the canopy on the heli! There's just not enough room in the nose of the canopy. My ESC wires are protruding out pretty good and the top of the battery collides with the inside of the canopy.
Any suggestions?
Thanks!

Thats weird, my COG is perfect with the battery a centimeter away from the motor.

[CaptHal8HS]

I know. It's a bit off. But there's no question that it drifts rearward badly with the battery sitting squarely on the battery tray.
I admit, I'm starting to hate this bird...
I'm going to get with my local flying club to have someone with more expertise than me fly it and let me know what's going on.

[HeliQuebec]

Originally Posted by CaptHal8HS

Did you replace it with the same servo? Or did you use a different brand/model? Did HH assist in any way? My bird is relatively new with little time on it.
Thanks!

PS
I'm going to try the tip offered in this thread and let you know.
https://www.helifreak.com/showthread.php?t=427666

Yes i replaced it with a stock 76T and it fix my problem. if you wanna see a video of my defect servo type heliquebec on youtube and check my video call servo problem. And no help from HH because i bought this heli use from a freaks member. Hope you will solve your problem soon.

[CaptHal8HS]

Watched your video. My tail servo is brand-new; returns to center and is free from horrible noises.
I have to get with a club and let someone who knows something fly it and help me.