The Lockheed EC-121 Warning Star is an American airborne early warning and control radar surveillance aircraft operational in the 1950s in both the United States Navy (USN) and United States Air Force (USAF).

EC-121预警星預警機 （英語： Warning Star）是由 洛克希德L-1049超級星座式 客机改装的美国第一代空中预警机。 其接替了海軍由 TBF復仇者式轟炸機 改装的空中预警机TBM-3W 。 在美国空军昵称“"Connie" (源自民用版的星座“Constellation”），1978年退役。 美国海军最初命名为WV-1 (PO-1W), WV-2, 与WV-3，绰号“Willie Victor”。 1982年从美国海军退役。 1949年美国海军获得两架 洛克希德L-749星座式 （英语：Lockheed L-749 Constellation），在机身之上与之下的大 …

The EC-121, originally designated RC-121, was a radar-picket version of the U.S. Air Force's C-121 passenger airplane. The EC-121 provided early warning by detecting and tracking enemy aircraft with the electronic gear in the large radomes above and below,

The Lockheed EC-121 Warning Star was a United States Navy and United States Air Force Airborne early warning and control radar surveillance aircraft. A military version of the Lockheed L-1049 Super Constellation, it was designed to serve as an airborne early warning system to supplement the Distant Early Warning Line, using two large radomes, a ...

The Lockheed EC-121 Warning Star was an Airborne early warning and control radar surveillance aircraft in service with the United States Navy and the United States Air Force in the 1950s.

An advanced version of Lockheed Aircraft Corporation’s highly successful Constellation, an aircraft that revolutionized the commercial airline industry and served in both the Army Air Forces/U.S....

Lockheed EC-121T-LO Warning Star (USAF 52-3418 FAA Reg. No. N4257U) The US Air Force RC-121 and EC-121 series of airborne early warning (AEW) aircraft were modifications of the Lockheed models 1049A and 1049B Super Constellation passenger airliner.

2012年1月18日 · Based on the Lockheed L-1049 Super Constellation airliner, the EC-121 Warning Star carried the long-range and height-finding radars required to provide coverage and warning to U.S. aircraft operating over North Vietnam. The EC-121s initiated operations out of Tan Son Nhut Airport on April 16, 1965.

2015年5月15日 · The EC-121, originally designated RC-121, was a radar-picket version of the U.S. Air Force's C-121 passenger airplane. The EC-121 provided early warning by detecting and tracking enemy aircraft with the electronic gear in the large radomes above and below,

A USAF EC-121 made history in October 1967, when, while operating over the Tonkin Gulf off North Vietnam, it guided a US Fighter to the successful interception of a VNAF Mig 21, the first time an airborne controller had directed a successful attack, setting the stage for many future developments in the arena of AEW&C.