AS a result of an extensive development programme, carried out with the co‐operation of the U.S. Navy Bureau of Aeronautics, and the U.S. Army Air Corps, The Pratt & Whitney Aircraft Company, of Hartford, Connecticut, has recently completed official tests on two sizes of fourteen‐cylinder, two‐row, geared and supercharged air‐cooled engines, the Twin Wasp Junior and the Twin Wasp.
(1933), "Two‐Row Engine Development: The Evolution of the Pratt and Whitney Twin‐Wasp Series", Aircraft Engineering and Aerospace Technology, Vol. 5 No. 6, pp. 134-135. https://doi.org/10.1108/eb029689Download as .RIS
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