Chu Hummingbird Helicopter

Designed by Major General C. J. Chu in the 1940s, with a first flight in 1948 the Chu Hummingbird was a twin rotor coaxial helicopter. Two examples were built, with the Model A built for non-flying tests and the Model B capable of flight. After the victory of the People’s Republic of China, Chu evacuated to Taiwan, abandoning the Hummingbird on the mainland. Nothing is known of its fate after this.