Wu Zhongyuan, a 20-year-old farmer from China, cobbled this working helicopter together out of a pile of steel pipe, some Elm wood and a 150cc scooter engine using his high-school physics knowledge and researching the rest on the Web via his mobile phone.
The 20-year-old is confident that his home-made chopper, which cost him two months of work and about $1600 in parts, will take him as high as 2600 feet. The Chinese government, like us, isn’t so sure, and has grounded the machine, at least for the time being.