Hello,
First of all, let me introduce my quad configuration and the crash details.
We have a Tarot T960 hexacopter configuration based on a APM 2.6. We have tested many times and it flies really stable.
This morning, we decided to do the first flight of a modification based on this frame, but in this case, just with 4 arms, in quad configuration. The controller in this flight test was a pixhawk with APM 3.2 version.
We were testing loiter mode in order to measure the time autonomy with a new battery ( Multistar 10000maH). It was stable and after 3 minutes of flight, something happened and drone fell free and crashed.
I have downloaded the log, but after analysing it, I can not figure what happened and which was the problem.
Please I need your help in order to determine which problems we had in order to not commit the same mistakes.
Thank you!!
* I recorded the crash, so I will update the topic with the link of the video. Probably it helps in the analysis.
*I have attached the log file.
Replies
Thank you everyone for the help, it is very useful for me.
Here you can watch the video I uploaded a few hours ago. Probably it can show us more details about the problem.
https://www.youtube.com/watch?v=j67Sb6-OR1w
GLUP!!!
See that you are in nice loiter and at the end droll and roll separate, your hardware couldn't follow what controller was asking for, that'common mechanical failure log.
It looks like at 41,000 it started to roll right and pitch up. The flight controller cut all power to motor number 3 to gain level altitude but it continued to roll. It increased power to the other three motors so I would say it was motor number 4 that had the problem.
It's look's like a hardware fail, check your motors, esc props, perhaps motor nº3
Thank you for the info Cala. Really fast reply :D
I would like to learn more about logging and how I can check failures. Could you please tell me how did you see this problem?
Thanks!
A la noche te posteo unas fotos