Ha, ha, that's one of the most thrilling and surprising device I tried until now: not a single flight like to another.
As a recall I'm flying the latest firmware, flashed through OTA.
I did want to check battery consumption, the real one, not stated, assumed, claimed ... Will come on another thread about that.
After a long test at home, inside, I took all the plastics outside and went in flight. Inside 19°C, outside 6°C.
The first flight was a hovering test. Took off, moved the landing gear up and left run for 15 minutes.
Rock solid up to 7 minutes. There was a little bit of very slow drift, both horizontally and vertically; I consider that normal and due to GPS and barometric pressure drift. After that it started to react a little bit harder on self altitude hold. A guess could be that the battery becoming discharged and not delivering a constant voltage, had the integrative value a little bit off an ideal value.
Then a very slight toilet bowl clockwise followed. About 1m diameter and very slow, 4-5 seconds a full circle. Another guess here could be IMU drift because of temperature change. Or the integrative again?
Landing gear down and landed, because the time was off. No particular issues.
The second flight was more surprising. The goal was climbing and diving all the time. After few climbs and dives I noticed the TH did reduce speed at about 10m, as usual, but started to stop at 5m. I had to move the climb stick fourth ad back again, with strange glitches on motors side, too have it dive really slow. Did that several times. It seemed that there was a two stage dive speed reduction, one at 10m and one at 5m. Altitude on telemetry was almost right, maybe 1m off, no more.
I checked if that was related to landing gear, but not. Up or down the behaviour was the same. All flying in Angle mode, no Obstacle av.
At the end I had to really force it to land, insisting a lot with down stick. It even tried to flip, which was avoided just giving throttle again.
So now, what's next?
... considering I bought that one to have something simple, ready to go, not implying any testing and setting as I have enough of that ...
Please, let me another consideration about firmware. I'm pretty sure that firmware is maintained by several developers, each one being related to a single part of it: RC control, camera, gimbal, autopilot, telemetry etc. It happens often in such teams that someone, introducing new features, does broke something else. I bet they test well their firmware part, but at the end everything has to work as a whole and who are the only ones that can do real, hard life test?
Ric
