It took him over two years of development, but this daring Swede was recently propelled aloft for around eight minutes of flight in his homemade electric multirotor. And what a glorious eight minutes it was. The unnamed pilot, who has been posting updates on his quadcopter project under the handle “amazingDIYprojects” for over seven years now, can be seen buzzing through the trees in this sun-dappled Swedish forrest like something out of a Scandinavian fairy tale. At the end of the video, he demonstrates the quadcopter’s vertical prowess by bouncing gleefully up and down in the air while seated in the center of four circular rotor-mounts. “It’s like a rollercoaster feeling,” he says breathlessly at one point.
The inventor says he used 57 percent of his battery capacity for the eight-minute flight, which leads him to theorize a total flying time of 14 minutes. “Overall the test went really well,” he writes on YouTube. “There was a little more vibration than I had anticipated, and Yaw directional stability in forward flight was inadequate. In this first flight the I-gain limits were set to zero. Next flight, the Yaw I-limit will be set to a value above zero to obtain better directional stability.” Which is to say, the inventor is working on improving the stability and functionality for future flights.
Credits:
https://www.theverge.com/2017/6/15/15808416/multirotor-drone-first-manned-flight-video-sweden
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