Persistent Close Air Support
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Persistent Close Air Support (PCAS) is a DARPA program that seeks to demonstrate dramatic improvements in close air support (CAS) capabilities by developing a system to allow continuous CAS availability and lethality to Joint Terminal Attack Controllers (JTACs).
Program utilizes the A-10 as a demonstration platform.
DARPA
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The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military.
Headquarters in Ballston in Arlington County, Virginia in 2022
DARPA's former headquarters in the Virginia Square neighborhood of Arlington County, Virginia. The agency is currently located in a new building at 675 North Randolph St.