Possible pilot disorientation (nose up, black sky), then over-pitching?
I saw a careful professional departure, with very good handling skills and no evidence of over pitching or disorientation. What did pique my interest on that last video was the moment of rotation after the vertical climb. A the moment the nose is pitched downward (and again, it was not overpitched or overcontrolled, but rather the transition initiated by someone with experience), there appeared the beginning of a right yaw that was briefly stopped after which the aircraft again accelerated the yaw to the right. Rate of descent afterward seemed high as well, higher than you'd expect from bottoming the collective to reduce the uncontrolled yaw. Definitely looking forward to the AAIB preliminary. Anybody know if the AW169 has real-time HUMS or how ofter it is downloaded?