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The '''EC-121 Warning Star''' was a [[US Air Force]]/[[US Navy]] version of the [[Lockheed Constellation]] designed to serve as an airborne early warning system to supplement the [[Distant Early Warning Line]]. It had two large [[radome]]s, one above and one below the fuselage. EC-121's were also used for intelligence gathering ([[SIGINT]]). It was introduced in [[1955]] and retired from service in [[1978]]. The US Navy versions when initially procured were designated WV-2/3.

==EC-121R BatCat==

During the [[Vietnam War]]  some 30 EC-121s were modified for use with ground sensors to detect enemy troop movents along the [[Ho Chi Minh Trail]]. The resulting '''EC-121R''' configuration was nicknamed the '''BatCat'''. Two BatCats were lost during the war.

==External links:==

* [http://www.wpafb.af.mil/museum/outdoor/od24.htm National Museum of the United States Air Force]
* [http://personalpages.tdstelme.net/~westin/batcat/cathst.txt BatCat history]

== Copyright ==
"Original data received from Wikipedia on April 12, 2006. Credit given to original authors can be seen [http://en.wikipedia.org/w/index.php?title=EC-121_Warning_Star&action=history Here]."

[[Category: Military Aircraft]]