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One prototype observation monoplane was ordered by the United States Army Air Service and designated XO-30 with the serial number29-451. The XO-30 was to have had two 600 hp (447 kW) V-1570-9 engines and a crew of three. The program was cancelled and the prototype was not built.
References
Notes
^ Andrade 1979, p. 138
Bibliography
Andrade, John (1979). U.S. Military Aircraft Designations and Serials since 1909. Hinckley, Leicestershire, UK: Midland Counties Publications. p. 171. ISBN0-904597-22-9.