637th Radar Squadron

The squadron was originally activated at Long Beach Municipal Airport CA as the 637th Aircraft Control & Warning Squadron as part of the initial cold war air defenses of the Western United States.^{[citation needed]} The following year it moved to Lashup Site L-32 at McChord AFB, WA.^[2] In 1959, it moved to Site L-29 at Moses Lake AFB, WA.^[2]

The squadron finally moved to its final station at site LP-40 (later P-40, Z-40) on Saddle Mountain, WA in 1951.^[1] In 1960, the unit was integrated into the Semi Automatic Ground Environment (SAGE) control system and was redesignated the 637th Radar Squadron (SAGE).^[1] Because it was stationed at a Backup Interceptor Control (BUIC) site, it was inactivated in 1970 and replaced by the like numbered 637th Air Defense Group (ADG).^[1] As defense systems against manned bomber threats were reduced, it was activated once again in 1974 to replace the 637th ADG.^[1] It was last inactivated on 31 March 1975.^[1]

The unit was a General Surveillance Radar squadron providing for the air defense of the United States.

• Constituted as the 637th Aircraft Control and Warning Squadron, 1947

Activated on 21 May 1947

Redesignated 637th Radar Squadron (SAGE), 1 September 1960

Inactivated, 1 March 1970

Activated, 1 January 1974

Inactivated on 31 March 1975

• 505th Aircraft Control and Warning Group, 21 May 1947
• 162d Aircraft Control and Warning Group (Federalized AZ ANG), 25 May 1951
• 25th Air Division, 6 February 1952
• 4702d Defense Wing, 1 January 1953
• 9th Air Division, 8 October 1954
• 25th Air Division, 15 August 1958
• 4700th Air Defense Wing, 1 September 1958
• Spokane Air Defense Sector, 15 March 1960
• Seattle Air Defense Sector, 1 September 1963
• 25th Air Division, 1 April 1966 - 1 March 1970
• 25th Air Division, 1 January 1974 - 31 March 1975
• Source^[1]

• Long Beach Municipal Airport, CA, 21 May 1947
• McChord AFB, WA, 16 April 1948
• Moses Lake AFB (later Larson AFB) WA, 1 May 1949
• Saddle Mountain, WA, 1 January 1951

Site renamed Othello Air Force Station, 1 December 1953 - 31 March 1975

• Source^[1]

  This article incorporates public domain material from the Air Force Historical Research Agency

• Cornett, Lloyd H; Johnson, Mildred W (1980). A Handbook of Aerospace Defense Organization, 1946 - 1980 (PDF). Peterson AFB, CO: Office of History, Aerospace Defense Center. Archived from the original (PDF) on 23 November 2006. Retrieved 19 November 2011.
• Mueller, Robert (1989). Air Force Bases, Vol. I, Active Air Force Bases Within the United States of America on 17 September 1982 (PDF). Washington, DC: Office of Air Force History. ISBN 0-912799-53-6.
• Winkler, David F.; Webster, Julie L (1997). Searching the skies : the legacy of the United States Cold War Defense Radar Program. Champaign, IL: US Army Construction Engineering Research Laboratories. LCCN 97020912.^{[dead link‍]}