UPTGrad
lvl.3
Flight distance : 1447884 ft
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Gimpy Posted at 9-11 02:35
Only speculation is possible without more information such as a video or log file. The Mavic Pro design (including MPP) only includes forward and downward sensors, so it might have struck something such as the roof or side of the balcony as it returned home. Or, it might not have struck anything initially but lost enough view of the sky to revert to ATTI mode and then drifted until colliding with something on the balcony, but all this is mere speculation. If nothing else, the ATTI mode conjecture can be ruled out or confirmed if you retrieve and post the DAT file found on the aircraft from that flight.
In any case, there are a couple of points that you seem to have misunderstood. First off, "APAS" isn't included with the MPP, though obstacle avoidance (OA) is used unless you had it disabled for RTH. Also, the 2km direct-path-home behavior you mentioned is unrelated to OA / APAS and isn't implemented on the MPP anyway. It has to do with the behavior of newer models, which can partially retrace their route before flying home.
Hi. Thanks for the feedback. Yes, it's hard to tell why OA didn't work.
I usually fly in open fields where OA has never been needed to save the day.
I was a little disappointed when the one time I needed it to work, it didn't! Darn.
Another time, I had some trees come between my Mavic 2 Pro and me, and was really surprised at how fast the signal dropped. On that aircraft, APAS backed up just enough for me to get the signal back.
That's a great idea on the DAT file. Maybe I can learn something from that.
I've never looked at it before, so I'll try to figure that out. Thanks for the idea.
I was recording video on this fateful flight, but unfortunately, that file got corrupted due to the crash. Darn again.
Thanks again for the feedback.
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