This paper includes a presentation of the Army’s XV-4A Hummingbird Program, the first all-jet VTOL Army airplane. Areas covered include the program’s background, a description of the airplane, a detailed discussion of the VTOL propulsion system, the airplane’s VTOL control characteristics, and overall performance.
The Hummingbird Program
Sae Technical Papers
SAE World Congress & Exhibition ; 1964
1964-01-01
Conference paper
English
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