Vultee XP-68 Tornado
|National origin||United States|
The Vultee XP-68 Tornado was proposed American high-altitude interceptor aircraft. It was based on the experimental XP-54 Swoose Goose and powered by the Wright R-2160 Tornado 42-cylinder radial engine driving a set of contra-rotating propellers in a pusher configuration. When the engine was canceled, on 22 November 1941, the XP-68 was also canceled.
- Andrade, John M. U.S. Military Aircraft Designations and Serials since 1909. Earl Shilton, Leicester, UK: Midland Counties Publications, 1979. ISBN 0-904597-21-0 (Hardcover), ISBN 0-904597-22-9 (Softcover).
- Angelucci, Enzo and Peter Bowers. The American Fighter, The Definite Guide to American Fighter Aircraft from 1917 to the Present. New York: Orion Books, 1987. ISBN 0-517-56588-9.
- Thompson, Jonathan. Vultee Aircraft 1932–1947. Santa Ana, CA; Narkiewicz/Thompson, 1992. ISBN 0-913322-02-4.
- Wagner, Ray. American Combat Planes of the 20th Century: A Comprehensive Reference. Reno, Nevada: Jack Bacon & Co, 2004. ISBN 0-930083-17-2.
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