Assistance in analysing crash log for an apologetic but very grateful noob

Log Analysis -- deprecated Copter Logs -- deprecated
1

First of all I apologise to those of you who must see a ton of posts from people like me who clearly have no clue (but are trying to learn…)

Basically I took my 3DR X8+ out for a flight with a GoPro VR array attached to it. All was going well, but at some point, the aircraft just kept climbing and climbing, until I was sure it was an ex-machina, so to say.

Using the land function on my Android ground station it did (painfully slowly) start to descend and in the end I managed to get both the aircraft and my VR rig back in one piece.

I would love to know if there is something amiss in my parameters, or whether it was pure user error, so if someone could help me analyse the log I would be really, really grateful.

Here is the log - https://drive.google.com/file/d/0B0Iw7JI50_KqRElQZkF2Q191YVE/view?usp=sharing

Many, many thanks again for any insights. You guys really are spectacular in your knowledge of this technology.

Best,

Matt

2

Sorry no time to look right now, but it surely vibrations. Check the IMU z axis. You can find more helpful info in the docs http://copter.ardupilot.org

3

Appreciate the response - thanks Bill.

Matt

4

It seems you have high vibe levels 30m/s/s peak up to 60m/s/s (compared to a normal 15m/s/s for Iris peaking at 30m/s/s)
see http://ardupilot.org/copter/docs/common-measuring-vibration.html?highlight=vibe#copter-3-3-plane-3-4-and-later-versions

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