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).

Here is a text article with details of the Lockheed EC-121R, including Lockheed construction number, Navy Bureau number, USAF serial number, and disposition of the aircraft.

EC-121预警星预警机 （英语： Warning Star）是由 洛克希德L-1049超级星座式 客机改装的美国第一代空中预警机。 其接替了海军由 TBF复仇者式轰炸机 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 …

On 5 September 1969, an EC-121R, Number 67-21495, callsign "Batcat 19", with aircrew number 40, from the 554th Recon Sq, Korat RTAFB, was scheduled for a combat tactical mission directed by 7th AF Frag Order number 69-248, mission number 1334.

EC-121C是美国空军第一种EC-121系列预警机，于1953年10月开始投入使用，机上电子设备重约6吨，机身背部有一个长2.44米 雷达 开引罩，内装AN/APS-20搜索雷达，机头装有AN/APS-42气象雷达。 EC-121D于1955年投入使用，共生产了72架。 与EC-121C相比，它翼尖带有副油箱，设备进行了改进。 各型EC-121一直使用到七十年代末才全部退役。 尺寸数据：机长35.41米，翼展37.95米，机高8.1米。 重量数据：空重36275公斤，正常起飞重量64620公斤。 性能数据： …

1996年6月8日 · Visible are 5 EC-121D Warning Stars, 1 C-121G, with 15 EC-121R aircraft in revetments, 1 in the maintenance hangar, and 1 on the taxi way performing a runup. B&W, about 417K, Larry Westin photo. Another view of the Connie Ramp taken from an EC-121R landing.

1999年7月3日 · When the 553rd Reconnaissance Wing disbanded in December 1970, the 553rd Reconnaissance Squadron was reassigned to the 388TFW, while the 554th Reconnaissance Squadron was disbanded from flying the EC-121R, with Detachment 1 of the 553rd Reconnaissance Wing at Nakhom Phanom then using becoming the 554th Squadron flying the QU-22B Baby Bats.

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.

2005年4月1日 · The loss of the third EC-121 in under two years was a stunning blow to the Air Force and surrounding region—indeed, the nation at large. The House Armed Services Committee named a special panel of lawmakers to study the circumstances of the crash.

The Lockheed EC-121 Warning Star was a United States Navy and United States Air Force airborne early warning radar surveillance aircraft.