During the first flight of this big hexa one of the six motors rotated about by 90° for a faulty clamp, really bad situation for the attitude, here's how the code and the pilot handle this emergency, with a perfect landing.
Although the drone had been higher i'm sure that the flight attitude would remain good, under control.
This result shows that the efforts of the development team were awarded the reliability.
Special thanks to the whole "APM:Copter Dev Team" for this reliable code, and to Lorenzo Franco (the cam operator).
("APM:Copter" Lead Tester)