This is an Omnibus F4 Pro config, running Plane 3.10.0-dev in a Skyhunter. I maidened the plane in Manual and added a couple of clicks of elevator trim for level flight. I then used Autotune to update the roll and pitch gains. I loaded a 100M AGL rectangular circuit mission, launched and flew to 70M. I tested Stabilise briefly, then engaged Auto. The plane immediately arced up to full throttle and commenced a 20 degree dive. I was able to switch to Manual and save the plane with 6 metres to spare.
The PIDP data looks suspicious, but I cannot determine the root cause. Can someone have a look at the log and give me some advice? The fun starts 2 minutes into the flight.