English: The first U.S. Air Force Lockheed RC-121C Warning Star (s/n 51-3836, c/n 1049B-4112) in flight in 1955. Originally ordered by the U.S. Navy as a WV-2B, it was instead delivered directly to the USAF as an RC-121C. All ten RC-121Cs were redesignated EC-121C in 1962. Later this aircraft was converted into a TC-121C training aircraft, before being retired to the MASDC in 1968 and later it was broken up.
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== Summary == {{Information |Description={{en|1=The first U.S. Air Force Lockheed EC-121C ''Warning Star'' (s/n 51-3836, c/n 1049B-4112) in flight in 1955. Originally ordered by the U.S. Navy as a WV-2B, it was instead delivered directly to the USAF as an
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