ak0486 1. View of three detection radar (DR) antennas. DR 1 (structure no. 735) on left, DR 2 (structure no. 736) in center, and DR 3 (structure no. 737) looking north 30 degrees west, with tracking radar (large radome) and satcom (satellite communication) system in small radome in view between DR 2 and DR 3 antennae. 2. View of southerly DR 1 antenna looking north 25 degrees west and and showing radar scanner building no. 105 east face through antenna. 3. View of middle DR 2 antenna looking north 30 degrees west and showing radar scanner building no. 105 east face through antenna. 4. View of northerly DR 3 antenna looking north 35 degrees west and showing radar scanner building no. 106 east face through antenna and partial view of satcom communication dome (attached to radar transmitter building 102) in left side of photograph. 5. View of middle DR 2 antenna with DR 1 antenna in background. Photograph shows on left side at bottom foundation berm and along right side bottom stanchion concrete foundations at bottom structural steel assembly. 6. View of DR 3 antenna typical back-stay concrete stanchion showing embedded anchors and structural steel leg with pin attachment. 7. View of DR 3 antenna typical front stay concrete showing embedment anchors, foundation steel base plate, vertical member with small diameter turnbuckles, antenna assembly in background, and story board for scale. 8. View of DR 3 antenna showing lower front connector, third from left vertical member at first level above foundation level, showing small diameter turnbuckle stays, vertical member with flange connection, and various struts and connectors with antenna assembly in background. 9. View of back side of radar scanner building no. 106 showing passageway links to other buildings east and west, and DR 3 antenna in background. 10. View of back side of radar scanner building no. 104 showing passageway links to other building to east and DR 1 antenna in background. 11. View of south side of radar scanner building no. 104 showing personnel exit door at side building, showing DR 1 antenna from oblique angle on foundation berm with DR 2 and DR 3 antennae in background. 12. View from east side of corner of transmitter building no. 102 looking over top of utilidor passageway link, DR 2 antenna in background left and abandoned radome on top of transmitter building no. 101. 13. View of southerly side of transmitter building no. 101 from south, showing tracking radar (tr) on top of transmitter building no. 102 in background left and abandoned radome on top of transmitter building no. 101 in middle of photograph with utilidor passageway link to right of photograph. 14. View of southerly side of transmitter building no. 101 from west looking easterly showing radar scanner building no. 104 to right with passageway link between, abandoned radome on top of transmitter building no. 101 and DR 1 antenna in background. 15. View of southeasterly side of transmitter building no. 102 with TR in middle and small satcom communication dome lower right. Note site well system building to lower right of transmitter building no. 102 southeast corner. 16. View of east side of transmitter building no. 102 looking south with TR radome in upper right of photograph and DR 2 antenna in left of photograph. 17. View looking north to transmitter building no. 102 from south along west side of passageway link with TR radome in background. 18. View from DR 2 antenna looking south 45 degrees west to backside transmitter building 101 and in left foreground showing site well system building. 19. View of satcom communication dome with TR radome in background right. 20. View from northeast to southwest side of scanner building 104 showing two waveguide termination faces (fiberglass light bands on left of photograph). 21. View from south to southerly face of scanner building 104 showing building radius. Radius of building face matches radius of DR antenna systems. 22. View of vehicle entrance to passageway link system taken from looking west. Note DR 3 antenna in background left. 23. View of junction of passageway link with radar transmitter building 102 (view looking south) showing main personnel entrance door. 24. View of lobby area on first floor transmitter building no. 102 looking into controlled access corridor and door system 25. Similar view of lobby area on first floor transmitter building no. 102 looking at door in photograph AK-30-A-24 in closed position showing locking system and restricted access notification. 26. View of second floor of transmitter building no. 102 looking across electronic equipment cabinets in area of missile impact predictor (MIP) area. Note U.S. Air Force emblem in mid-center of photograph. This area is in front of the Missile Warning Operations Center (MWOC) office. 27. View of entry door to vestibule to MWOC entry door in transmitter building no. 102 (note coded key pad to left and intercom phone on left) and door to the central systems monitor room (CSMR) to right (out of sight). 28. View of data test area for DR data take off set operators panel and cabinet at second floor of transmitter building no. 102 in MIP area. 29. View of typical radio frequency monitor group electronic tube-type cabinet. System is water-cooled with antenna assist. 30. View of mezzanine floor level in transmitter building no. 102 showing control transmitter electronic cabinets and control modules. 31. View of mezzanine floor level in transmitter building no. 102 showing various electronic central indicator panel to control building air conditioning, steam pressure, supply temperature, discharge temperature, supply pressure, transformer vault status, and radome conditioning system. 32. View of relay assembly group and interconnecting group electronic modules located on second floor of transmitter building no. 102 in MIP area. 33. View of data converter and power supply for TR system in transmitter building no. 102, mezzanine level. 34. View of typical work station in transmitter building no. 102, second floor, with continental electronics "keying pulse line amplifier trigger pulse AM-3445/FPT9" cabinet at desk. 35. View of data and analysis console (DAC), located in MWOC facility in transmitter building no. 102, showing clock and missile impact predictor time. 36. View of preset counter (PC) console and tracking console on right, located in MWOC facility in transmitter building no. 102. 37. View of detection radar environmental display (DRED) console for middle DR 2 (structure no. 736) antenna, located in MWOC facility. 38. View of DRS 1, 2, and 3 (structure nos. 735, 736, and 737) console fault locator for beam power status, radio frequency (RF) and intermediate frequency (IF) fault conditions, RF switches status and TR status. 39. View of checkout indicator computer console for DR beams, TR chains, and special checkout target control located in CSMR in transmitter building no. 102. 40. View of dual projector system located in MWOC facility in transmitter building no. 102 by Bessler Company. System used to project images in MWOC on backlit screen system with fiber optic electro/mechanical system linked to computer output to indicate information on screen linked with display from projector system. 41. View of electro/mechanical fiber optic system panel in transmitter building no. 102. Images projected to screen (panel at upper left) are projected to back side of screen located in MWOC to display changing information. 42. View of CSMR room equipment status board and operators console with two phone links to MWOC in transmitter building no. 102. 43. View of CSMR room equipment locator and system checkout console for detection radars and rearward communication data links in transmitter building no. 102. 44. Building 102, view from mezzanine looking down to first floor showing Klystron tube equipment vaults with dual waveguides leaving top of vaults through bifurcation combiner system at start of waveguides; note tops of capacitor vaults along photograph to left. 45. Building 102, view of waveguide "coaxial waste load" device connected to waveguide combiner. 46. Building 102, view showing waveguide control switch used to achieve equal length adjustments and frequency control between separate Klystron tube radion frequency (RF) generators. 47. View of "dry air inlets" to waveguides entering scanner building 105. Dried air is generated under pressure by Ingersoll-Rand dehumidified/dessicator and compressor system. View is at entrance from passageway that links into corner of scanner building. 48. View of typical 90 degree elbow located at horizontal corner with output (to scanner radar system control switch) waveguide on top and return wave on bottom of photograph. 49. View of waveguide system entering building no. 105 (typical of all radar scanner buildings), showing testing connection points and monitoring equipment. 50. View of waveguides beginning to move toward two radar scanner switches (two per radar scanner building) by vertical bends; also tuning devices are located here. 51. View of upper radar scanner switch in radar scanner building 105 from upper catwalk level showing emanating waveguides from upper switch (upper one-fourth of photograph) and emanating waveguides from lower radar scanner switch in vertical runs. 52. View from ground level showing lower radar scanner switch with open port door in radar scanner building 105 showing emanating waveguides from lower switch in vertical run; photograph also shows catwalk to upper scanner switch in upper left side of photograph and structural supports. 53. View from ground level in building no. 105 showing lower radar scanner switch with incoming waveguide and control switch. 54. View from ground level in building no. 105 showing lower radar scanner switch at open port door. Note incoming waveguide and control switch at lower left of photograph and note several waveguides leaving top of scanner switch around the circumference of switch. 55. View from ground level in building no. 105 showing lower radar scanner switch with eighty-eight 1-1/2" diameter copper ion return RF balance tube systems. 56. Building 105, close view of ion return RF balance tube adjustment controls. 57. Building 105, another view of ion return RF balance tube system, and beginning of waveguide return connections to right of photograph; note bottoms of waveguide systems around circumference of scanner switch in upper part of photograph. 58. View of high pressure Ingersoll-Rand dehumidifier/dessicator and compressor system to supply dry pressurized air to waveguides. 59. View of high voltage (4160 volts alternating current) electric load center and motor control center at mezzanine level in transmitter building no. 102. 60. View of radome hydraulic module control center in mezzanine level in transmitter building no. 102. 61. View of TR spiral access stair system from transmitter building no. 102 mezzanine level; note elevator door on right. 62. View of amplifier-modulator control system with power distribution panel on left, control power supply in middle, and amplifier modulator on right, second floor in transmitter building no. 102. 63. View of Klystron tube cut-away exhibit located at mezzanine level transmitter building no. 102, directly above RF power generation systems located on first floor. 64. Building 102, view of Klystron tube amplifier housing with tube removed and showing waveguide entrances at top of photograph. 65. Building 102, view of Klystron tube in amplifier housing showing top of tube connecting conductors. 66. Building 102, view of Klystron tubes located in test systems located at first floor level with top of tubes protruding through second floor and ready to be lit and installed through top of Klystron tube vaults to ready position. 67. Building 102, view of electronic switching amplifier (in retracted or open position) with video monitor mounted at top to monitor performance and condition of system in oil bath. 68. Building 102, view of same system as in photograph no. AK-30-A-67 except switching amplifier in closed position; note video cameras in foreground of photograph at bottom. 69. Transmitter building no. 102, view of typical transmitting set for modulating amplified control panel (on right) and coolant water control/monitoring panel (on left). 70. Transmitter building no. 102, view of typical amplifier modulation system vaults showing Klystron tube in installed position (1 of 2 in each module). 71. Transmitter building no. 102, view of arrangement showing the Klystron tube vaults along right side of photograph and capacitor vaults along left side of photograph. 72. View of test system showing Klystron tube installed in test position on first floor of transmitter building no. 102. 73. View of line of stainless steel coolant storage tanks for bi-sodium sulfate/water coolant solution at first floor of transmitter building no. 102. 74. Transmitter building no. 102, view of radar digital test and maintenance cabinet area control panel and date storage system showing ampex tape storage devices. 75. Transmitter building no. 102, view of typical radio frequency switching group for lower antenna A & B and upper antenna A & B and MIP/MWOC automated interface cabinet. 76. View of copper screen shielded and grounded test area in transmitter building no. 102, room 115. 77. View of interior of room 115, building no. 102, with technical publications and equipment for testing. 78. View of radar systems technical publication library, transmitter building no. 102, second floor. 79. View of interior of room 114, supervisor's office, transmitter building no. 102, with microfiche viewer and technical publications. 80. View from outside specialized maintenance shop in transmitter building no. 101, showing entry to area down hallway. 81. View of specialized maintenance shop in transmitter building no. 101, down main corridor showing various test stations. 82. View of specialized maintenance shop in transmitter building no. 101, showing technical publications library and equipment logging trays. 83. View of specialized maintenance shop in transmitter building no. 101, with shelves of obsolete electronic equipment with disposition and shipping tags. 84. View of specialized maintenance shop in transmitter building no. 101, back corner, showing synchronizer board tester, power generator, and miscellaneous equipment. 85. View of specialized maintenance shop in transmitter building no. 101, showing test bed with meters, power supplies, oscilloscopes, and other electronic test equipment. 86. View of building no. 105 showing structural steel and foundation nearly complete (note curved forms in place to place concrete for RF lockout and waveguide termination room). RCA Services Company, 28 September, 1959, official photograph BMEWS Project by unknown photographer, Photographic Services, Riverton, NJ, BMEWS, clear air station (AS) negative no. A-1. 87. View of transmitter building no. 102 showing structural steel frame at completion. RCA Services Company 28 September, 1959, official photograph BMEWS Project by unknown photographer, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-5. 88. Overhead view of clear air station site at early stage of construction. View is from south 30 degrees west showing DR 3 in foreground with DR 2 in middle and DR 1 out of view. Official photograph BMEWS Project by unknown photographer, 5 October, 1959, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-27. 89. View of DR 2 antenna (structure no. 736) at 65 percent completion showing erection process. Antenna system designed and factory construction by D.S. Kennedy & Company., Comasset, MA, 1958. Note scanner radar building in background. Official photograph BMEWS Project by unknown photographer, 11 July, 1960, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-824. 90. View of scanner building no. 104 showing emplacement process for one-half of upper radar switch housing body. RCA Services Company 6 September, 1960, official photograph BMEWS Project by unknown photograph, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. a-1163. 91. View of scanner building No. 105 construction view showing upper (upper left) and (lower right) DR switches (note apertures for future waveguide connection) and structural steel support system. RCA Services Company 22 September, 1960, official photograph BMEWS Project by unknown photograph, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-1219. 92. View of transmitter building no. 102 first floor coolant process water tanks (sodium bisulfate solution), stainless steel, for electronic systems cooling in transmitter and MIP rooms. RCA Services Company 29 September, 1960, official photograph BMEWS Project by unknown photograph, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-1226 93. View of transmitter building no. 102 view from second floor at grid lines 102-J-L, looking down at capacitor vaults on left and Klystron tube vaults on right showing future square attachment blockouts for waveguide connections at top. RCA Services Company 27 October, 1960, official photograph BMEWS Project by unknown photograph, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-1371. 94. View of scanner building no. 105 overall view of upper (upper left) and lower (lower left) DR switches and waveguide arrangement, access catwalks, ships ladder stairs, and structural support system. Official photograph BMEWS Project by unknown photographer, 25 April 1961, clear as negative no. A-2343. 95. View of transmitter building no. 102 second floor view of capacitor vaults, waveguides and combiner bifurcation, Official photograph BMEWS Project by C. Henry, 6 January 1962, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-3541. 96. Aerial view of clear AFS site, Official photograph BMEWS Project by C. Henry, 5 July 1962, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-3945. 97. View of International Business Machine (IBM) digital computer model 7090 magnetic core installation, international telephone and telegraph (ITT) Artic Services Inc., Official photograph BMEWS site II, Clear, AK, by unknown photographer, 17 September 1965, BMEWS, clear as negative no. A-6604. 98. View of IBM digital computer model 7090 magnet core installation. ITT Artic Services, Inc., Official photograph BMEWS Site II, Clear, AK, by unknown photographer, 17 September 1965. BMEWS, clear as negative no. A-6606. 99. View of initial TR panel emplacement for radome, with workman welding at panel joint, RCA Services Company 8 October, 1965, Official photograph BMEWS Project, by unknown photographer, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-6741. 100. View of TR radome construction showing crane assembly and workers, original radome, RCA Services Company 2 October, 1965, Official photograph BMEWS Project by unknown photographer, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-6705. 101. View of transmitter building no. 102, missile warning operation center, close up view of DRED (detection radar environmental display) console in operation showing target. Official photograph BMEWS Project by Hansen, 14 March 1963, clear as negative no. A-8803. 102. Interior view of utilidor passageway link between building nos. 101 and 102 showing waveguides on left and cable tray system on right sides. Note fire suppression water supply piping (upper center). Small maintenance 3-wheel vehicle at center (Note: similar vehicles still in use in 2001.) Official photograph BMEWS Project by Hansen, Photographic Services, Riverton, NJ, BMEWS, clear as negative no. A-101123. 103. View of transmitter building no. 102, missile warning operation center, overall view of center in operation with staff at consoles. Note defcon (defense condition) display panel (upper right) showing "simulated status"activity level. Also note fiber optic display panel at upper right-center. Official photograph BMEWS Project by Hansen 30 September, 1976, clear as negative no. A-14568. 104. View of TR antenna, workers on "hanging garden," official photograph BMEWS Project by Hansen, 11 February 1981, clear as negative no. A-17701. 105. View of tracking radome replacement project, progress photograph, official photograph BMEWS Project by unknown photographer, 11 August 1981, clear as negative no. A-18562. 106. Air defense command "master plan", base map," RCA Service Company tab no. F-1, sheet 1 of 2, dated 22 October, 1965. 107. Air defense command "master plan, basic mission plan," RCA Service Company tab no. F-1, sheet 2 of 2, dated 1 June, 1963. 108. Back side technical facilities S.R. (scanning radar), scanner building no. 104, "first floor & mezzanine plan" - architectural, AS-BLT AW 35-03-89, sheet 1 of 40, dated November, 1960. 109. Back side technical facilities S.R. scanner building no. 104, "cross & longitudinal sections & roof plan" - architectural, AS-BLT AW 35-03-89, sheet 5 of 40, dated 23 November, 1960. 110. Back side technical facilities S.R. scanner building no. 104, "first floor plan & sections" - structural, AS-BLT AW 35-03-89, sheet 20 of 40, dated 23 November, 1960. 111. Back side technical facilities S.R. scanner building no. 105, "elevations A & B" - architectural, AS BLT AW 35-03-90, sheet 3 of 39, dated 23 November, 1960. 112. Back side technical facilities S.R. scanner building no. 105, "elevations C & D" - architectural, AS-BLT AW 35-03-90, sheet 4 of 39, dated 23 November, 1960. 113. Back side technical facilities S.R. antenna foundations nos. 107, 108 & 109, "grounding system general plans & details" - electrical, AS-BLT AW 35-03-92, sheet 4, dated 6 June, 1960. 114. Back side technical facilities S.R. radar transmitter building no. 101 "elevations - sheet 1" - architectural, AS-BLT AW 35-46-03, sheet 5, dated 23 June, 1961. 115. Back side technical facilities S.R. radar transmitter building no. 101, "elevations - sheet 2" - architectural, AS-BLT AW 35-46-03, sheet 5, dated 23 June, 1961. 116. Back side technical facilities S.R. radar transmitter building no. 101, "equipment room details" - mechanical, AS-BLT AW 35-46-03, sheet 73.1, dated 23 January, 1961. 117. Back side technical facilities S.R. radar transmitter & computer building no. 102, "building sections - sheet I" - architectural, AS-BLT AW 35-46-04, sheet 12, dated 23 January, 1961. 118. Back side technical facilities S.R. radar transmitter & computer building no. 102, "building sections - sheet I" - architectural, AS-BLT AW 35-46-04, sheet 13, dated 23 January, 1961. 119. Back side technical facilities S.R. radar transmitter & computer building no. 102, section I "tower plan, sections & details" - structural, AS-BLT AW 35-46-04, sheet 62, dated 23 January, 1961. 120. Back side technical facilities S.R. radar transmitter & computer building no. 102, section II "foundation & first floor plan" - structural, AS-BLT AW 35-46-04, sheet 65, dated 23 January, 1961. 121. Back side technical facilities S.R. radar transmitter & computer building no. 102, section II "sections & elevations" - structural, AS-BLT AW 35-46-04, sheet 72, dated 23 January, 1961. 122. Back side technical facilities S.R. radar transmitter & computer building no. 102, section II "elevations & details" - structural, AS-BLT AW 35-46-04, sheet 73, dated 23 January, 1961. 123. Back side technical facilities passageways, "key plan" - architectural, AS-BLT AW 36-25-13, sheet 1 of 40, dated 23 November, 1960. 124. Back side technical facilities passageways between support area & building no. 106, "plans, sections & details" - architectural, AS-BLT AW 36-25-13, sheet 2 of 40, dated 23 November, 1960. 125. Back side technical facilities passageways between building no. 106 & by-pass building, "plan, elevation & sections" - architectural, AS-BLT AW 36-25-13, sheet 3 of 40, dated 23 November, 1960. 126. Back side technical facilities passageways by-pass between building nos. 106 & 102, "plans, elevations, sections & details" - architectural, AS-BLT AW 36-25-13, sheet 5 of 40, dated 23 November, 1960. 127. Back side technical facilities passageways between building nos. 105 & 102, "plans, sections & elevations" - architectural, AS-BLT AW 36-25-13, sheet 6 of 40, dated 23 November, 1960. 128. Back side technical facilities passageways between building nos. 105 & 101, "plans, sections & elevations" - architectural, AS-BLT AW 36-25-13, sheet 7 of 40, dated 23 November, 1960. 129. Back side technical facilities passageways between turnaround trans. & building no. 104, "plans, sections & elevations" - architectural, AS-BLT AW 36-25-13, sheet 9 of 40, dated 23 November, 1960. 130. Back side technical facilities passageways building no. 101 to building no. 105, "plans, elevations & sections" - structural, AS-BLT AW 36-25-13, sheet 19 of 40, dated 23 November, 1960. 131. Back side technical facilities passageways building no. 106 to transmitter building no. 102, transmitter building no. 102 to building no. 105 "plans, elevations & sections" - mechanical, AS-BLT AW 36-25-13, sheet 24, dated 23 February, 1981.