preserving it. The aircraft was eventually acquired by the Evergreen Aviation and Space Museum in McMinnville, Oregon, and prepped for a ferry flight to Oregon. However, after the museum's parent company Evergreen International Aviation went bankrupt, the aircraft was acquired by the Castle Air Museum at the former Castle AFB in Atwater, California, for restoration. After that, many parts and materials were collected, and now it is completely restored and preserved. EC-121K On Display BuNo 137890 – on display outside 552d Air Control Wing Headquarters, the home of E-3 AWACS operations for the USAF, at Tinker Air Force Base, in Oklahoma City, Oklahoma. The aircraft is one of two Warning Stars displayed in the markings as AF Serial Number 53-0552. BuNo 141297 – on display at the Museum of Aviation at Robins Air Force Base, Georgia. It was flown to the museum in 1987 for display. BuNo 141309 – on display as AF Serial Number 53-0552 at the Aerospace Museum of California at the former McClellan AFB, California. This is one of two Warning Stars painted as 53-0552. BuNo 141311 – awaiting restoration at the Yankee Air Museum, Belleville, MI. Previously at Octave Chanute Aerospace Museum, Rantoul, Illinois. BuNo 143221 – on display at the National Naval Aviation Museum at Naval Air Station Pensacola in Pensacola, Florida. The aircraft was acquired in flyable condition in 1973 from Training Squadron 86 (VT-86) at NAS Glynco, Georgia pending the closure of NAS Glynco and the squadron's relocation to NAS Pensacola. It is currently on display at the Sherman Field flight line annex of the museum. Specifications (WV-2/EC-121D) See also References Notes Citations Bibliography Boyne, Walter J. Beyond the Horizons: The Lockheed Story. New York: St. Martin's Press, 1998. . Breffort, Dominique. Lockheed Constellation: From Excalibur to Starliner, Civilian and Military Variants. Paris: Histoire and Collections, 2006. . Cacutt, Len, ed. “Lockheed Constellation.” Great Aircraft of the World. London: Marshall Cavendish, 1989. . Gargus, John. The Son Tay Raid: American POWs in Vietnam Were Not Forgotten. College Station, Texas: Texas A&M Press, 2007. . Germain, Scott E. Lockheed Constellation and Super Constellation. North Branch, Minnesota: Specialty Press, 1998. . Higham, Robin, ed. Flying American Combat Aircraft: The Cold War. Mechanicsburg, Pennsylvania: Stackpole Press, 2005. . Marson, Peter J. The Lockheed Constellation Series. Tonbridge, Kent, UK: Air-Britain (Historians), 1982. . Michel, Marshall L. Clashes: Air Combat Over North Vietnam 1965–1972. Annapolis, Maryland: Naval Institute