Help - run away servo

Hi guys, I have tried using the mCPX and 300X files from here, with some changes on expos, throws, & reversing.
I am having issue, where my aileron servo continuously goes up & the elevator goes down 'till they bind during throttle input.
Video is attached. It's a 130X helicopter


Thanks for the help.

[video/][/video]

130X + Devo8S + DeViation v2.1.1 (DSM2)
Run away cyclic servos (AIL going up & ELEV going down) issue during throttle.

No idea at first sight.

Do this:

1. Power down your heli
2. Go to Channel Monitor on the TX
3. Move THR stick
4. Observe which channel(s) move

Bar shows Ch1 & Ch6 moves with the throttle stick accordingly.
Thanks

( have done this on both my 130X) with the same issue.

I just tried it on my mCPX (Devo8S), & it's doing the same thing
I also changed (increased) the min & max values of the ail and elev.
I get the same issue as well.
I have tried using other models files with the same result.

I have a new 130x, and I'm having the same problems using a DX6i TX.
I was told by several friends who fly this heli, and also the "130x expert" at my LHS that it's the nature of the beast. They say to spool it up, and pop it off the ground. Once in the air it's very stable.
I find that if I stir the cyclic stick during spoolup that the disk settles down, and I can takeoff without a blade strike.
I guess it takes some getting used to.
I fly it with my Devo 8, and it does the same thing.

Clearprop- This guy in the video has the similer issue going on with his Spk. Tx. His solution for 200+ flights was sub-trim.

Thanks very much for that video lasakro.
I will definitely try that.
It looks like it will solve the problem.
I always thought that subtrims were not to be used on a 3 axis gyro, but I can see that it works for this heli.

I'm having the same problem with my AR7200BX. I wonder if subtrims would work on that one.
Unfortunately I pulled it out of my 300X so I can't test it now.

Did this work for you? It worked for me, but when I first plug in the 130 I have to redo the subtrims every time. My tx saves the settings but it does not work on the heli until I bring the subtrim to 0 then back to what I had it before. Does this happen with you?

Yaw2 wrote: Did this work for you? It worked for me, but when I first plug in the 130 I have to redo the subtrims every time. My tx saves the settings but it does not work on the heli until I bring the subtrim to 0 then back to what I had it before. Does this happen with you?

Hi,
I think, this is completly normal... the 130X, as lot of cheap FBL systems, record all channel values on each startup as 0 values (whatever the channel value sended by the TX is). So even if you put subtrims this is recorded by the RX as the 0 value after binding process. Subtrims are completly unnecessary on such models.

Thank you for that. It's just annoying that I have to adjust subtrims in the first place. I called horizon hobby about this and they recommended that I send it in to their service center. Do you think this is worth it?

Have you tried using a Spectrum radio with it?
If it's not doing the same thing with a Spektrum radio with their Tx's recommended setting, then nothing is wrong with your Heli.
I just don't want you to spend money on shipping your 130X to Horizon if nothing is wrong with it.

I have not. I do not have one available to me, maybe I'll consider a dx8, a JR, or a Futaba. Any recommendations?

Yaw2 wrote: I have not. I do not have one available to me, maybe I'll consider a dx8, a JR, or a Futaba. Any recommendations?

To this date, I can't fly both my 130X with my Devo8S and Deviation FW. I have problems as well. So I have been using my DX6i.
My 8S with Deviation FW works with other helis and planes though. But not with the 130X.

Hope you know someone that has Spektrum (and with 130X), and bind your 130X with his Spektrum that has 130X profile already programmed.