McChord Air Force Base Radar Site

McChord Air Force Base Radar Site (1950-1960) - A Cold War Air Force Radar Station first established in 1950 on McChord Air Force Base, Pierce County, Washington. Initially assigned a Permanent ID of P-1. Moved to Fort Lawton Air Force Station in 1960. McChord Air Museum in former Radar Station Cantonment Building, Bldg 517. History of McChord Air Force Base Radar Site (P1) Established in 1950 and became operational in 1951 as McChord Air Force Base Radar Site manned by the 635th AC&W Squadron. The station initially had both a Ground-Control Intercept (GCI) and early warning misssion. The early warnng mission involved tracking and identifing all aircraft entering their airspace while the GCI mission involved guiding Air Force interceptors to any identified enemy aircraft. Controllers at the station vectored fighter aircraft at the correct course and speed to intercept enemy aircraft using voice commands via ground-to-air radio. Initial equipment included two CPS-6B search radar sets and later in the mid 1950s one FPS-6 height finder radar was added. Site P-1 was relocated to Fort Lawton Air Force Station about June 1960 with a relocated ID of RP-1. The new site was collocated with a U.S. Army Nike Missile Direction Center S-90DC and became SAGE System site Z-1. Physical Plant McChord Radar Site Plan The physical plant of the site was divided into a main site, a cantonment area and a radio site. The main site housed the operations buildings, the radar towers, and the backup generators. The cantonment area housed the enlisted barracks, the bachelor officer's quarters, the orderly room, the dining hall and other support buildings. A separate Ground to Air Transmitter/Receiver (GATR) radio site housed the radio equipment for directing aircraft intercepts. Adjacent to the radar operations area was the 25th Air Division manual control center. McChord Air Force Base Radar Site AFS Major Equipment List Search Radar HF Radar Data Systems CPS-6B CPS-6B FPS-6 Unit Designations while at McChord 635th Aircraft Control & Warning (AC&W) Squadron (1950-1960) 635th Assignments 1 Jan 1951 - assigned at McChord AFB, WA, assigned to the 505th AC&W Gp. 6 Feb 1952 - transferred to the 25th AD. Jan 1955 - transferred to the 4704th Def Wg 8 Oct 1954 - transferred to the 25th AD. 1 Mar 1960 - transferred to Seattle ADS. 11 Jun 1960 - Moved to Fort Lawton Air Force Station (RP-1) & redesignated 635th Radar Sq (SAGE). Current Status Main operational site repurposed and in use by the base Civil Engineers. In the cantonment area only one building remains and it is in use as the McChord Air Museum. McChord Air Force Base Radar Site Structures (edit list) Number Building Area Currently Exists Notes 509 AC&W Sqdn Bks Cantonment Gone 510 AC&W Sqdn Bks Cantonment Gone 511 AC&W Sqdn Bks Cantonment Gone 512 AC&W Sqdn Bks Cantonment Gone 513 AC&W Sqdn Bldg Cantonment Gone 514 AC&W Sqdn Bldg Cantonment Gone 515 AC&W Sqdn Bldg Cantonment Gone 516 AC&W Sqdn Bldg Cantonment Gone 517 AC&W Sqdn Bldg Cantonment McChord Air Museum 518 AC&W Sqdn Mess Hall Cantonment Gone 519 Receivers Radio Gone 520 HQ 521 HQ 522 HQ Credit Union 526 HQ 530 25th AD Admin HQ Bank 551 Power Plant Ops Readiness Ctr Annex 552 Radar Ops Ops Readiness Ctr 553 Ops Resiliency Ctr 554 25th AD HQ HQ Gone 555 Manual DC HQ Civil Engineers CPS-6B Ops Gone FPS-6 Ops Gone {"selectable":false,"width":"500"} Location: On McChord Air Force Base in Pierce County, Washington. Maps & Images Lat: 47.12417 Long: -122.49222 Multi Maps from ACME Maps from Bing Maps from Google Elevation: 322' See Also: Fort Lawton Air Force Station Permanent System Radar Sites US Radar Sets Sources: Cornett, Lloyd H. & Johnson, Mildred W., A Handbook of Aerospace Defense Organization (1946-1980), Office of History ADC, Peterson AFB, Colorado, 31 Dec 1980, 179 pages, Pdf, page 155. Winkler, David F., Searching the Skies: the Legacy of the United States Cold War Defense Radar Program, USAF Hq Air Combat Command, 1997, 192 pages, Pdf, page 164. Links: Radomes - McChord Air Force Base Radar Site Wikipedia - McChord Air Force Base Radar Site McChord Air Museum Visited: 30 Apr 2014