Chinese farmers probably have a knack for creating DIY flying machines. Wu Zhongyuan, a farmer from China’s Henan province has built himself a helicopter, using wood from an elm tree, a motorcycle engine and steel pipes. The 150cc engine powers the wooden blades, while the steel tubes provide structural rigidity.
Wu has had no formal education in aviation or aeronautics, and says he built the helicopter relying on the Physics he learnt in middle school. He spent three months and nearly $1600 in creating the helicopter, which he claims can go as high as 800 meters. He won’t be able to fly it though, the Chinese government has stopped the flight for safety reasons.