Discussions

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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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