Chinese inventors coaxial helicopter
The dream of a 69-year-old inventor in Guiyang: let a new type of helicopter fly into the sky from the blueprint Peng Kai, 69 years old this year, lives in the three groups of Shanshui Qiancheng, Zhongcaosi Community, Nanming District. He has only a junior high school education, but he is a great inventor. He likes to invent since he was a child. He started repairing alarm clocks and pin locks at the age of 6 or 7, and completed the first invention in his life at the age of 30—the cloth press. Nowadays, he is still working tirelessly. He has obtained a patent for the invention of a 2N-layer rotor hub electric helicopter. His wish is to let this new type of helicopter fly into the blue sky from the blueprint. The first invention in life Peng Kai, born in Qianxi County, Guizhou Province, was born in 1951. He claimed to be an "invention fan." Peng Kai told reporters that when he was still in school, he and his neighbors had repaired an alarm clock and a marble lock. Once he saw