yesterday my beautiful hexacopter crashed from a 30m altitude. I'm pretty sure all of you know the feeling, and it's part of this hobby. I'm going to fix this, however I'd love to have some insights of why this happened. You know, just to avoid spending another $3/400 dollars or so for the same reasons. :)
We programmed a very simple mission in the mission planner: 3 endpoints, and then on the last endpoint loiter forever.
- made the hexa take off
- put it in loiter mode
- started the mission from the planner.
Once the mission was over and the hexa was in 'loiter forever', I switched mode on my remote from loiter to stabilize, then back to loiter, so that I could take control of it, then made it come near me to try the mission again.
So I started the mission again. This second time, however, when the mission was over and I switched mode on my remote from loiter to stabilize, then back to loiter, the hexacopter instantly fell down like a stone. It looked like if the power had been turned off the minute I switched modes, and it just went down vertically without control.
I've attached the last 3 logs of the flights, the last one is when it crashed. Can someone please give me some hints on what went bad? I would love to start doing this again, but without an understanding of what happened I'd feel that this might as well happen again.
Some additional details of the hexa configuration are in the image snapshot attached. I was using arducopter 3.0.0-rc5.
Thank you in advance..