The Bell 47 was the first helicopter certified for civilian use, on 8 March 1946. It was mostly designed by Arthur M. Young, who joined Bell Helicopter in 1941. More than 5,600 were produced until 1974, including 1,200 under license in Italy, 239 in Japan, and 239 in the UK.
The Bell 47 helicopter entered U.S. military service in late 1946, in a variety of versions and designations for three decades. In the Korean War (1950-1953) it was designated the H-13 Sioux by the United States Army, a highlight of its extensive career. It has also served as the helicopter of choice for basic helicopter flight instruction in many countries.