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Hi,

Had a major flyaway and crash today - AC 3.1.5. Copter was completing a land waypoint in an auto mission, and I switched to stabilize. As soon as I switched to stabilize the copter pitched forward hard.

I actually left it for a second or two to try to understand what was happening, but it just seemed intent on pitching forward. I tried to correct, but the pitch was not responding, Luckily the throttle seemed to respond, and I cut it, as the copter was heading for the road at car level.

I took a look at the log, Just after the mode switch (line 15359) the pitch seems to drop fast with no associated pitchin.

Anyone have any ideas.

Its a Hexacopter that hovers at about 20-25%

Jamie

2014-07-01 16-39-10.log