A total of 222 models 1049A with the designations WV-2/WV-3 and RC-121D were built and delivered between 1953 and 1957 to the United States Air Force and United States Navy.
The model represents a RC-121D/1049A-55-86 delivered to the US Air Force on 16 November 1955 with the registration 53-555.
552 AEW & CW, McClellan. Later re-designated EC-121D. This Connie is preserved at Wright Patterson Museum.