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How to set tail gyro gain for a pixhawk helicopter

Posted by Simon Evans on May 8, 2016 at 12:45pm

Hi,

I have built a traditional 450 sized heli using a pixhawk autopilot, I am also using a spektrum DX8

Everything is setup and the heli flies. the only problem is is the tail wags a lot, i have previously built traditional 450 helis and encountered similar problems, ii was easy to fix this by adjusting the tail gyro gain.

I have searched all over and cannot for the life of me find where i can configure the gyro gain for the pixhawk.

ideally i would like to map it to a switch (knob) on my controller.

any advice would be greatly appreciated

thanks

Simon

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Tags: dx8, gain, gyro, heli, helicopter, pixhawk, tail, traditional
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Replies

  • Developer
    Randy May 8, 2016 at 9:13pm

    Simon,

    There's some advice here from RobL on the tradheli wiki.

    You'll want to use inflight tuning I'm sure.

    Traditional Helicopter – Tuning — Copter documentation
    • Simon Evans > Randy May 10, 2016 at 11:43am

      Hi Randy,

      Thank you for your quick reply, you have pointed me in the right direction. however from what i can gather there is not fixed settings and they will vary from heli to heli.

      Its just a matter of trial error.

      Cheers

      • Simon Evans > Simon Evans May 10, 2016 at 12:13pm

        The other problem i have is my channel 6 is assigned to the pitch control so i have no way of assigning it to the rate_yaw_p. this is probably a result of me setting the pixhawk up as a heli and not as an acro as other posts suggest. so i have no way of assigning channel 6 to the rate_yaw_p to allow in flight tuning.

        What also annoys me is that pixhawk have implemented the motor interlock, i have no idea why they have done this because normal gyro traditional helis dont require this. So no i am forced to have to flick a switch to activate the motor then use my throttle to as a pitch controller.

        Cheers

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