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542d Aircraft Control and Warning Group
Active	1949–1952
Country	United States
Branch	United States Air Force
Type	Command and Control
Part of	Air Defense Command

The542d Aircraft Control and Warning Group is an inactiveUnited States Air Force unit. It was last assigned to the28th Air Division, stationed atHamilton Air Force Base, California. It was inactivated on 6 February 1952.

This command and control organization was responsible for Aircraft Control and Warning (Radar) stations along the West Coast. On 27 April 1950, the reserve 566th AC&WG was activated as a Corollary unit at Hamilton, sharing the 542d's equipment and facilities. The 566th was called to active duty on 10 May 1951 and was inactivated, with its personnel used as fillers for the 542d. It was dissolved after about three years, with the units being assigned directly to its parent Air Division.

• Established as542d Aircraft Control and Warning Group

Activated on 8 December 1949

Inactivated on 6 February 1952

Disbanded on 21 September 1984

Assignments

• 28th Air Division, 8 December 1949 – 6 February 1952

Stations

• Hamilton AFB, California, 8 December 1949 – 6 February 1952

Components

• List of United States Air Force aircraft control and warning squadrons

 This article incorporatespublic 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 fromthe original(PDF) on 23 November 2006. Retrieved22 November 2011.
• Grant, C.L., The Development of Continental Air Defense to 1 September 1954, (1961), USAF Historical Study No. 126
• Leonard, Barry (2009).History of Strategic Air and Ballistic Missile Defense, Vol I. 1945–1955(PDF). Center for Military History.ISBN 978-1-4379-2131-1. Archived fromthe original(PDF) on 10 November 2013. Retrieved17 June 2012.
• 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]}

• Aerospace Defense Command units
• Air control groups of the United States Air Force

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