I have doubts that this video of a Chinese guy flying his DIY helicopter is real. According to Gizmodo, the man who is from Guangdong Province in eastern China, took 10 years to perfect his sub-$3000 home-built helicopter. It's one thing building your own helicopter but flying it is another thing. I've heard that piloting helicopters is no easy task. You need exceptional skills to be a helicopter pilot.
Previously: Chinese dude flies homemade airplane