Chicago Air Defense Sector
|Chicago Air Defense Sector|
Emblem of the Chicago Air Defense Sector
|Branch||United States Air Force|
|Part of||Air Defense Command|
The Chicago Air Defense Sector (CADS) is an inactive United States Air Force organization. Its last assignment was with the Air Defense Command (ADC) 30th Air Division at Truax Field Wisconsin. It was inactivated on 1 April 1966.
CADS was established by redesignation of the never active 4628th Air Defense Wing at Truax Field, Wisconsin in March 1957 with a mission to provide air defense of Illinois, Indiana, most of Iowa and northern Missouri, but did not assume control of former ADC Central Air Defense Force units until 1959. The organization provided command and control over one interceptor and several radar squadrons.
On 1 October 1959, the new Semi Automatic Ground Environment (SAGE) Direction Center (DC-07) and a Combat Center (CC-02) became operational. DC-07 was equipped with dual AN/FSQ-7 Computers. The day-to-day operations of the command were to train and maintain tactical flying units flying jet interceptor aircraft (F-102 Delta Dagger, F-106 Delta Dart) and radar squadrons in a state of readiness with training missions and series of exercises with Strategic Air Command and other units simulating interceptions of incoming enemy aircraft.
The Sector was inactivated 1 April 1966 as part of ADC reorganization and consolidation, the command being replaced at Truax Field by the 20th Air Division, and its units in Indiana were reassigned to the 34th Air Division.
- Designated as 4628th Air Defense Wing, SAGE in 1956
- Redesignated as Chicago Air Defense Sector and activated on 8 March 1957
- Discontinued and inactivated on 1 April 1966
- 37th Air Division, 8 March 1957
- 30th Air Division, 1 April 1959 - 1 April 1966
- Truax Field, Wisconsin, 8 March 1957 - 1 April 1966
- Truax Field, Wisconsin, 1 June 1959 - 1 April 1966
Interceptor Squadron 
- Bunker Hill AFB, Indiana, 1 July 1960 - 1 February 1963
Radar Squadrons 
- F-102A, 1959-1966
- F-106A, 1960-1963
See also 
- List of USAF Aerospace Defense Command General Surveillance Radar Stations
- Aerospace Defense Command Fighter Squadrons
- List of United States Air Force aircraft control and warning squadrons
- Cornett, Lloyd H; Johnson, Mildred W (1980). A Handbook of Aerospace Defense Organization, 1946-1980. Peterson AFB, CO: Office of History, Aerospace Defense Center. p. 57.
- Cornett & Johnson, p. 37 (Map)
- Cornett & Johnson, p. 36
- Cornett & Johnson, p. 79
- Maurer, Maurer, ed. (1982) . Combat Squadrons of the Air Force, World War II (reprint ed.). Washington, DC: Office of Air Force History. p. 391. ISBN 0-405-12194-6.
- Cornett & Johnson, p. 159
- Cornett & Johnson, p. 162
- Cornett & Johnson, p. 164
- Cornett & Johnson, pp. 168-170
- Leonard, Barry (2009). History of Strategic Air and Ballistic Missile Defense. , Vol II, 1955-1972. Fort McNair, DC: Center for Military History. ISBN 13 9781437921311 Check
- Redmond, Kent C.; Smith, Thomas M. (2000). From Whirlwind to MITRE: The R&D Story of The SAGE Air Defense Computer. Cambridge, MA: MIT Press. ISBN 978-0-262-18201-0.
- 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 9720912.
- Radomes.org Chicago Air Defense Sector