tandem rotor
Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction.
The original use of the term in English was in ''tandem harness'', which is used for two ...
helicopter developed in
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
during the 1950s under the director of Major General C.J. Chu (朱家仁).
Chu was a Chinese aeronautics engineer, who returned to China following his graduation from
MIT
The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the mo ...
in 1926. Chu joined the
KMT
The Kuomintang (KMT), also referred to as the Guomindang (GMD), the Nationalist Party of China (NPC) or the Chinese Nationalist Party (CNP), is a major political party in the Republic of China, initially on the Chinese mainland and in Tai ...
National Revolutionary Army
The National Revolutionary Army (NRA; ), sometimes shortened to Revolutionary Army () before 1928, and as National Army () after 1928, was the military arm of the Kuomintang (KMT, or the Chinese Nationalist Party) from 1925 until 1947 in China ...
and was in charge of an aircraft plant in
Yunnan
Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...
that assembled
American
American(s) may refer to:
* American, something of, from, or related to the United States of America, commonly known as the "United States" or "America"
** Americans, citizens and nationals of the United States of America
** American ancestry, pe ...
aircraft and the
Soviet
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...
Polikarpov I-15
The Polikarpov I-15 (russian: И-15) was a Soviet biplane fighter aircraft of the 1930s. Nicknamed ''Chaika'' (''russian: Чайка'', "Seagull") because of its gulled upper wings,Gunston 1995, p. 299.Green and Swanborough 1979, p. 10. it was o ...
.
Chu developed his first helicopter in 1945 which he called the Hummingbird Model A. This single seat test craft never flew and was used for static tests until it was damaged when the rotor broke. Chu began to work on another helicopter he called the Hummingbird Model B. This single seat helicopter was similar to the Model A, but achieved flight.
Following the fall of the
KMT
The Kuomintang (KMT), also referred to as the Guomindang (GMD), the Nationalist Party of China (NPC) or the Chinese Nationalist Party (CNP), is a major political party in the Republic of China, initially on the Chinese mainland and in Tai ...
in 1949, Chu was exiled to
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
and the helicopter program was scrapped. It was not until the early 1950s that Chu returned with a larger tandem helicopter called the CJC-3. This was flown and tested in
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
in 1952. An upgraded version called the CJC-3A appeared in 1956. Both the CJC-3 and CJC-3A were likely influenced by American helicopter manufacturer
Piasecki
Piasecki (feminine: Piasecka, plural: Piaseccy) is a Polish family name and may refer to one of the following.
* Anna Piasecka (1882–1980), Polish politician
* Barbara Piasecka Johnson (1937–2013), Polish-American philanthropist and art colle ...