TedBob
lvl.4
Flight distance : 1743622 ft
United Kingdom
Offline
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Looking at the detailed logs:
* I was bringing the drone to land at very low speed and going down slowly (altitude 8m)
* Suddenly, the drone appeared to initiate a Go Home mode, at 18% battery. Was 35m from home. However, drone didn't climb higher
* I stayed in control of the drone (direction, altitude) and brought it down to 1.6m high, at 15m from home (was planning to land closer than the take off point, so drone was only about 4m from where I wanted to land)
* Suddenly, drone went up to 3.4m high, at high speed, and hit the top of the tree...
Here are the relevant rows from the detailed log:
https://docs.google.com/spreadsh ... dh65QZlXBOw/pubhtml
Surely, the bottom sensor didn't trigger such high fast climb (or shouldn't do), and drone shouldn't start climbing so fast close to its home location/destination, even in RTH mode.
I am assuming the bottom sensor would either stop the drone from going forward further, or just raise its altitude slighly.
BTW, I have been flying RC helicopters and quadcopters (without assistance, stabilisation, GPS etc), for more than 10 years. I had full control of the drone, and it just went on a crazy vertical climb suddenly, on its own. All the sensors and automation created the crash, not me!
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