Yes my quad copter flue away a couple of week ago. I have contacted one of developer in the arducopter team, he gave me a mail address to send the flightlog file to so he could have a look at it, but now almost 4 week gone by without any answer, and I don’t know way they don’t respond. So I thought I poste here to see if any of you guys have any idea of what could have happen. I poste a link to YouTube of a video I made from the flightlog file in mission planner so you can see what happened.
For the record this post isn’t to complain on the arducopter team or anything like that, I just want to know what happen. I don’t dare to test auto mission again until I know what went wrong. Link to video on YouTube.
Some comments of what happen in the video.
So is there a software glitch/bug in arducopter 3,01? Look at the video and judge for you self.
The mission was just setup to follow the street you see in front of my house. Just a short trip over 8 waypoints at a speed of 3m/s. And at a height of 30 meters.
0,15: Start the copter up I tried loiter for I wile to see if everything seem to be working fin, and it did, a lite wobbly because it was lite gusty out but nothing major.
0,44: Switch to auto.
0,55: the copter reached waypoint 1 ok, and went of to waypoint 2.
1,03: Here I Starts to go south, the copter start roll heavy to the right and took off in very high speed well over 3m/s (21 m/s according to telemetry as you can see). I admittedly switch to RTL (as you can see), but nothing happens. And as you can see I have lost GPS 3D fix, and that’s was propyl what starts all of this. But should the copter just stand still if it lost GPS signal? It isn’t supposed to just fly away, right?
1,15: I then switch to AltHold. And try to fly it back but it did response to any stick command from the radio at all.
1,35: It got GPS 3D fix again, and I just took off in high speed again, no control of it at all. Note the mode was set to AltHold, not any GPS mode (Loiter or Auto etc.). So way did I take off when it was in AltHold mode? It sudden have matter that it got GPS signal when it wasn’t in any GPS mode??? And way in so high speed? And again it didn’t responded to any stick command from the radio, the only thing it seems to respond to was when I switch flight mode on the radio.
2,15: In some desperation I switch off the radio, I have set failsafe to RTL. And I have tried it before and it worked fine. At this point I didn’t know what else to do. And as you can see it went into failsafe mode and flight mode switch to RTL. Way didn’t it RTL?
3,10: And here it stayed hover, I have set no WP or nothing like that here. And you see the flight mode is in RTL.
5, 15: You can fast-forward to this point, I have zoomed out just to let you see that I knows where “home” is, and it also have an accurate distance to home. And the flight mode was RTL and it hade GPS 3D fix. Way didn’t it RTL????? Way did it just stay at that point???
6,22: I suddenly lost telemetry data and you could just barely see it visually. So I took off in a hurry by car to the outer side of the river to get telemetry to work again but I never did. So the copter had already crashed when I arrived or it had took off again. I never found it unfortunately.
The only explanation I can come up with is there some software glitch/bug….Hope to see some comments from you guys to hear what you think….
The copter was a quad copter with APM 2.5 and arducopter v3,01. And I use Futaba FAAST 2.4 GHz for radio and receiver (futaba original).
Sorry for bad English.