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 …

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 …

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 …

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 …

ec-121和rc-121系列飞机改型繁多，主要有ec-121d型和k型，主要用于预警和训练使用；ec-121m，预警平台；ec-121p，反潜探测平台；ec-121q，预警和控制平台；ec-121r,传感器接 …

l-1049a 的主要量产型就是交付给海军的那 142 架 wv-2 预警机，以及装有气象设备的 8 架 wv-3 气象监测机，另外还有交付给空军的 72 架 rc-121d，后货舱增加了 1,000 加仑的油箱。

2018年7月18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 Warning Star provided early warning …

Navigators on civilian airliners and long-range military aircraft, such as the Lockheed RC-121D, began using retractable periscopic sextants in the late 1940s. They eliminated the risk of …

Lockheed Aircraft manufactured the Museum’s EC-121T in Burbank, California in 1954 as a RC-121D. It was delivered to the USAF in October of that year and remained in service for 22 …

The RC-121Ds were the first line of aerial warning for the United States in the Cold War, performing wide-ranging patrols on the continental ramparts and oceanic approaches. The …