One prototype observation monoplane was ordered by the United States Army Air Service and designated XO-30 with the serial number29-451.[1] The XO-30 was to have had two 600 hp (447 kW) V-1570-9 engines and a crew of three.[1] The program was cancelled and the prototype was not built.[1]
Andrade, John (1979). U.S. Military Aircraft Designations and Serials since 1909. Hinckley, Leicestershire, UK: Midland Counties Publications. p. 171. ISBN0-904597-22-9.