I am hoping I can get some clarity on this matter. I am not entirely sure where to post this as it is a Mission Planner/Arduplane/Firmware issue!
I have a a Skywalker frame(similar setup to the Aero-M) with a Pixhawk (3.3.0) that we use for aerial mapping. We have built a few of these platforms and they all work really great. We use auto takeoff and auto landing and have never had any issues for over 100 hours with exception of man made mistakes such as installing the prop the wrong way!
We recently handed one over to a client for a mapping mission. He asked for assistance with flight planning as he wanted to fly 2 areas within the same mission without landing. Having done this type of flight planning using the survey tool in Mission Planner fairly often, I helped him out.
The takeoff was not successful and the plane had a hard landing 100m away. From an analysis of the logs, it appears that the Pixhawk was armed with more than 20 degree roll. This error was pointed out by a few experts as a big no no as Pixhawk only can cope with a few degrees of roll upon initializing.
My concern is that in the first line of the mission waypoints, under takeoff, the pitch is “0”. I think this came about as I last had an Iris multirotor connected to Mission Planner. Would having “0” as a pitch value cause the auto takeoff to fail? Or does TECS override this? My only option is to manually try this out for myself but I am in no mood to bust a plane!
Attached below are the logs. I would greatly appreciate any feedback.