Boggling fly away - Mavic Pro

[slup]

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Wow, IMU Yaw off by 127 degrees is huge and makes a heck of a difference.

The difference that make, when the IMU is off closely to half a turn (180 degrees) is that the AC will flyaway in a straight path ... what the craft think's is the front is actually the rear.

If close to 90 degrees off the AC instead will flyaway in a circular path (known as a toilet bowled path).

Your friends flyaway path looked to be mainly straight ... so I imagine the IMU was off closer to 180 degrees due to the earlier mentioned 2 reasons ... only the DAT log can specify which of them actually caused this. One is definitely a pilot error & one isn't.

 

[Zonian]

You guys amaze me with your data analysis on these machines...I read them all and am always impressed. We all can learn from them...thanks!

 

[davidadrake]

Sounds like what happened to me the first time I went to use my used Mavic pro, where I took it up about 100', then it just decided to take off on its own. Kept saying Atti mode and interference, and couldn't return home. It went a couple miles, while I watched, helplessly, through the camera, which I could control. Also, up and down worked. I found it a week later, and just had to replace a leg and the gimbal cover.

Turns out I didn't wait long enough for GPS before taking off. I'll never make that mistake again. I haven't actually even used it more than to test it out after replacing the leg, because I got a mini 2, which is way more awesome!