I just upgrade my quadcopter to AC-3.1 yesterday. All tunes were done. It's quite stable flight, but sometime in stable mode the elevation of the copter was decrease 1-2 meter suddenly and return to stable. During the flight, I did switch to Autotune mode by CH7.
Do you guy have any idea why does it happen? Thanks.
Replies
Try posting your query here. http://ardupilot.com/forum/index.php