Hello Forum,

This is my first post, so I'm not 100% sure if this is the format the group would prefer, however I am stuck in a little pickle.

I decided to build my first quadcopter back in September, which turned out to become relativly simple. With that choice, I choose the APM platform to allow me to explore autonomous operations, as well as its versitility.

My first couple flights were fine, but later on I started to encounter issues.

The day I first tested RTL, the first time I flipped the switch, it worked flawlessly. I went to record the RTL for my video series the second time, but it eventually led to a sudden flip and crash. (Video will be attached).

After repairing the copter, I did a couple of tests in my street. All of them were fine except for one, where I had no control over it drifting and then descending into my neighbors fence. 

The big kahuna of crashes occurred after that, where I once again, intended on testing RTL. The flight was going OK, until I flipped it into RTL, where I felt that it was not working right. I flipped it back into stabilize, where it starting drifting over a neighborhood pool. I'm not positive if I flipped it back into RTL or not, but the copter suddenly shot-up into the sky at full throttle, leaving it out of sight. Eventually we found the copter less than a quarter of a mile away from launch.

I'm still trying to learn the ins and outs of these systems, so I thought posting the video of the last flight, data and kmz logs of the last flight would help me receive some insight of how to fix my quad, as it is grounded until I know this will never happen again.

Raw GoPro video of crash: https://youtu.be/X02X2SxAvTk

All criticisim and comments welcome!

Thanks for the help,

Todd

crash log.kmz