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Ballistic_Missile_Early_Warning_System abstract "The RCA 474L Ballistic Missile Early Warning System (BMEWS, "474L System", Project 474L) was a USAF "Big L" Cold War system of radar, computer, and communications systems that included the first operational ballistic missile detection radar.[citation needed] The network of 12 radars for detecting "a mass ballistic missile attack launched on northern approaches [for] 15 to 25 minutes warning time" also provided Project Space Track satellite data (e.g., about 1/4 of SPADATS observations). BMEWS equipment included:General Electric AN/FPS-50 Radar Set, a UHF (440 MHz) detector with transmitter having an organ-pipe-scanner feed, fixed 1,500 ton [3] parabolic-torus reflector, and receiver with Doppler filter bank to scan with 2 horizontally-sweeping fan for as many as ~12,000 observations per day for surveillance (determining range, position, and range rate) of space objectsRCA AN/FPS-49 Radar Set, a five-horn monopulse tracker (e.g., 3 at Site III) and FPS-49A variant (different radome) at Thule ("vacuum tubes 10 feet tall [in] transmitter buildings [are] used to warm" the site.)RCA AN/FPS-92 Radar Set, an upgraded FPS-49 "featuring more elaborate receiver circuits and hydrostatic bearings" at Clear [4]Sylvania AN/FSQ-53 Radar Monitoring Set, with console and Signal Data Converter Group [5] ("data take-off unit")[6]Sylvania AN/FSQ-28 Missile Impact Predictor Set, with duplex IBM-709-TX solid-state computers e.g., in Building 2 at Thule [7] and part of the AN/FPA-21's [8] Radar Central Computer at Site III—Satellite Information Processor (SIP) software was later added at Site III for use on the backup IBM 7090.[9]RCA Communications Data Processor (CDP), as used in the Western Electric Air Force Communications Network (AF DATACOM) of AUTODINWestern Electric BMEWS Rearward Communications System, a "network to link the separate elements" and 1 of 6 ADC comm systems: "BMEWS Rearward Long-Lines System" at CFS Resolution Island & CFS Saglek, (cf. Pole Vault Line, White Alice in Alaska, and to Fylingdales, NARS)BMEWS Central Computer and Display Facility (CC&DF) at Ent AFB (ZI portion of BMEWS), with RCA Display Information Processor (DIP)—DIPS displays were also at the Offutt AFB war room floor and balcony, as well as at the PentagonTo predict when parts "might break down", the contractor also installed RCA 501 computers [10] with 32k "high speed memory", 5-76KC 556 bpi 3/4" tape drives, & 200 track random access LFE drums.[citation needed] The initially-replaced portions of BMEWS included the Ent CC&DF by the Burroughs 425L Missile Warning System at Cheyenne Mountain (FOC July 1, 1966.) The original Missile Impact Predictors were replaced (IOC on August 31, 1984), and BMEWS systems were entirely replaced by 2001 (e.g., radars were replaced with AN/FPS-120 SSPARS) after Satellite Early Warning Systems had been deployed (e.g., 1961 MIDAS, 1968 Project 949, and 1970 DSP satellites).".
Ballistic_Missile_Early_Warning_System foundingDate "1964-01-15".
Ballistic_Missile_Early_Warning_System location Federal_Building_(Colorado_Springs).
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Ballistic_Missile_Early_Warning_System wikiPageID "736540".
Ballistic_Missile_Early_Warning_System wikiPageRevisionID "605811139".
Ballistic_Missile_Early_Warning_System author "2415".
Ballistic_Missile_Early_Warning_System author "January 1958 and "employed 485 large companies and".
Ballistic_Missile_Early_Warning_System author "RCA Defense Electronics Products was contracted in".
Ballistic_Missile_Early_Warning_System author newspapers?nid=1300&dat=19600216&id=jX41AAAAIBAJ&sjid=GKwDAAAAIBAJ&pg=5178,2654670.
Ballistic_Missile_Early_Warning_System authorType "Contractor".
Ballistic_Missile_Early_Warning_System authorType "Prime".
Ballistic_Missile_Early_Warning_System authorType "System".
Ballistic_Missile_Early_Warning_System category "radar network".
Ballistic_Missile_Early_Warning_System coordinatesNote "''in Colorado Site I*: in Greenland".
Ballistic_Missile_Early_Warning_System coordinatesNote "-- site for FPS-50 prototype".
Ballistic_Missile_Early_Warning_System coordinatesNote "Site II*: in Alaska".
Ballistic_Missile_Early_Warning_System coordinatesNote "in New Jersey".
Ballistic_Missile_Early_Warning_System coordinatesNote "on Trinidad".
Ballistic_Missile_Early_Warning_System coordinatesNote "tbd BMEWS test facility in New York".
Ballistic_Missile_Early_Warning_System country "United States".
Ballistic_Missile_Early_Warning_System countryFlag "1".
Ballistic_Missile_Early_Warning_System countryType "System Originator".
Ballistic_Missile_Early_Warning_System date "March 2014".
Ballistic_Missile_Early_Warning_System established "1958".
Ballistic_Missile_Early_Warning_System establishedType "Constructed".
Ballistic_Missile_Early_Warning_System footnotes "*Air Defense Command radar stations".
Ballistic_Missile_Early_Warning_System hasPhotoCollection Ballistic_Missile_Early_Warning_System.
Ballistic_Missile_Early_Warning_System image "120.0".
Ballistic_Missile_Early_Warning_System image "1961".
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Ballistic_Missile_Early_Warning_System image scan.jpg.
Ballistic_Missile_Early_Warning_System image Sanctuary_mag__number_42_2013.pdf.
Ballistic_Missile_Early_Warning_System imageCaption "--04-16".
Ballistic_Missile_Early_Warning_System latD "38".
Ballistic_Missile_Early_Warning_System latM "50".
Ballistic_Missile_Early_Warning_System latNs "N".
Ballistic_Missile_Early_Warning_System latS "23".
Ballistic_Missile_Early_Warning_System location Federal_Building_(Colorado_Springs).
Ballistic_Missile_Early_Warning_System longD "104".
Ballistic_Missile_Early_Warning_System longEw "W".
Ballistic_Missile_Early_Warning_System longM "47".
Ballistic_Missile_Early_Warning_System longS "44".
Ballistic_Missile_Early_Warning_System reason "non-standard image placement".
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Ballistic_Missile_Early_Warning_System width "35".
Ballistic_Missile_Early_Warning_System subject Category:1959_in_military_history.
Ballistic_Missile_Early_Warning_System subject Category:Cold_War_military_computer_systems_of_the_United_States.
Ballistic_Missile_Early_Warning_System subject Category:Cold_War_military_equipment_of_the_United_States_Air_Force.
Ballistic_Missile_Early_Warning_System subject Category:Early_warning_systems.
Ballistic_Missile_Early_Warning_System subject Category:Radar_networks.
Ballistic_Missile_Early_Warning_System point "38.83972222222222 -104.79555555555555".
Ballistic_Missile_Early_Warning_System point "76.569 -68.318".
Ballistic_Missile_Early_Warning_System type Artifact100021939.
Ballistic_Missile_Early_Warning_System type Facility103315023.
Ballistic_Missile_Early_Warning_System type MilitaryFacilitiesInAlaska.
Ballistic_Missile_Early_Warning_System type MilitaryFacilitiesInCalifornia.
Ballistic_Missile_Early_Warning_System type MilitaryFacilitiesInGeorgia(U.S.State).
Ballistic_Missile_Early_Warning_System type MilitaryFacilitiesInMassachusetts.
Ballistic_Missile_Early_Warning_System type MilitaryFacilitiesInNorthDakota.
Ballistic_Missile_Early_Warning_System type Object100002684.
Ballistic_Missile_Early_Warning_System type PhysicalEntity100001930.
Ballistic_Missile_Early_Warning_System type Whole100003553.
Ballistic_Missile_Early_Warning_System type YagoGeoEntity.
Ballistic_Missile_Early_Warning_System type YagoPermanentlyLocatedEntity.
Ballistic_Missile_Early_Warning_System type ArchitecturalStructure.
Ballistic_Missile_Early_Warning_System type Building.