
Hubsan X4 Quadcopter. The quad is very stable (comparing to those non-GPS) and it;s position hold mode / altitude hold is very usefull (instead of panic button you have to drop the joysticks). The flight is smooth maximum distance is great – 300m is enough if you have always to have the visual contact with the quad (EU regulations). I can’t see the drone in apporx 200m distance. I reached the maximum height of 250m above terrain but then comes the clouds and i returned back.
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Source http://handbookblogger.blogspot.com/2017/08/hubsan-x4-quadcopter-quad-is-very.html