Large drone (700mm Hex) pitched positively just about at the ground (12inchs ish...) during an autonomous landing. I think, I can see in the logs where it tried to correct but did not physically do so.. I believe I can see also where I tried to give manual land reposition commands to it via the tx and again it was unresponsive, it held its rearward tilt until impact and rolled after an emergency shutoff.. What I want to know is what happened... Why did it pitch? I am thinking mechanical failure at this point but unsure... many thanks
Walt
Log here: https://drive.google.com/open?id=0B7riimz7R8Y5dDQ2c2NqTzR1bk0
update: patched arms and used a temporary strut to stabilize loose arms to test copter without changing anything (I didn't even charge it..)... copter flu and landed fine.... 3 times in the same place it had failed at the day before...... So i would have to conclude that mechanical is out she performed wonderfully minus the muched up arms from the roll over...
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Nothing where oh where are you log dissectors!!!!! Help me Please.... lol
Walt