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Hello,

Have recently built a drone with following specs:

Fixhawk

PX4 native flight stack

Taranis Plus X9D transmitter

FrSky X8R receiver

Zubac GNSS UAVCAN GPS/Baro/Compass module

12,000mAh LiPo

Tarot 650 Ironman quad frame

RCTimer 5010 360KV motors

17"x5.5 CF propellers

I have loaded px4 firmware with QGroundControl (I don't have a choice in this matter as Mission Planner does not support the UAVCAN GPS I'm running.

I had a couple of minor crashes when I started flying, only through lack of experience though.  I thought I'd give the mission mode a go and I loaded some very basic way points in (for my nearby school oval) and went out to give it a go.

The first occasion the craft was armed and switched to Mission mode.  The drone took off, climbed straight up to the 5 metres specified altitude, yawed 360 degrees (which I assumed was it just getting it's bearings) and then descended away from the first waypoint and smashed into a set of soccer goals.

After fixing that broken CF arm I readjusted my way points to the centre of the same oval and returned. Once again, armed to drone, switched to mission, perfect take off and immediately flew in a direction 70 degrees to the right of the next waypoint (at approximately the programmed 5 metres altitude) and without showing any signs of changing direction or slowing down, flew into a very large tree (possibly a sycamore?) where it came to rest. Removing it from the tree caused more damage to the frame than a crash probably would have.

Attached is the log files. I have attempted to review them in "FlightPlot" but am either not using the program properly or it is not working with my log file.  Not sure which.

If anyone can have a look at the attached log file and/or explain to me how to analyse them myself, I would greatly appreciate it.  I am undetered and will order a new frame but would like to know what went wrong here so I can try and avoid the same issues next time.

Thanks 

log001.px4log