First flight of the production version of the Bell Model 47/YR-13

Sunday, August 12, 1945



First flight of the Type that has been produced in the 1000's both in the USA and, under license, abroad. The initial production version carried the designation YR-13 in US Army service.

(Source: "The American Helicopter: An Overview of Helicopter Developments in America 1908-1999," Michael J. Hirschberg, July 2000, Page 42)


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