Ballistic Missile Early Warning System
US Cold War Early Warning Radar for ballistic missile defense / From Wikipedia, the free encyclopedia
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The RCA 474L Ballistic Missile Early Warning System (BMEWS, 474L System,[17] Project 474L) was a United States Air Force Cold War early warning radar, computer, and communications system,[18] for ballistic missile detection. The network of twelve radars,[12] which was constructed beginning in 1958 and became operational in 1961, was built to detect a mass ballistic missile attack launched on northern approaches [for] 15 to 25 minutes' warning time[19] also provided Project Space Track[20] satellite data (e.g., about one-quarter of SPADATS observations).[21]
This article's lead section may be too short to adequately summarize the key points. (December 2016) |
Ballistic Missile Early Warning System | |
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BMEWS Central Computer and Display Facility in United States | |
Type | Radar network |
Site history | |
Built | 1958–1961[4] (complete FOC was January 15, 1964)[5] |
Built by | RCA Defense Electronics Products[6]: 29 [lower-alpha 2] |
Fate | Replaced in 2001 by SSPARS
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It was replaced by the Solid State Phased Array Radar System in 2001.[22]