Very strange behavior when switching to AUTO

Hi Guys,

I would like to ask for some help on here.

I have been flying Mapping missions for the past year without any incident and having lots of fun doing so.

Recently have added a new plane to my hanger that is basically exactly the same as the first one with the exception of a redesigned gimbal for a different camera.

Test flights went well except for one small incident. On this particular flight, when switching to Auto the plane violently rolled....As in two or three consecutive rolls just like my 3D Extra 300. I flew on in Manual and tries again and the same thing happened. After landing, I thought I noticed a bad plug connection on the APM, redid this connection and the problem never came up again for the next 20 flight or so.

Last week in the field something like this happened again. The plane when switched into AUTO violently pitched down and applied full throttle while banking left. I immediately stopped it switching to manual and tried again, same thing! Landed power cycled the APM and went up again. This time the mission was flown as expected without incident.

Looking at at the logs, I am very confused about the channel 5 servo output that is graphed. Channel 5 is the mode switching channel and looking at the base mode it is switching from MANUAL to AUTO but when I look at the channel 5 raw out put it is not.

Please see attached picture.

Although this mission did actually go as planned, I can't help but think that the one has something to do with the other.

What do you guys think? 

Otji Flight 16.10.2013.jpg

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  • Developer

    Hi Andreas,

    It would be more useful if you could post a tlog rather than a graph image.

    Cheers, Tridge

This reply was deleted.