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.
More photos here.













