The Chicago Air Defense Sector (CADS) is an inactive

United States Air Force The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its ori ...

organization. Its last assignment was with the

Air Defense Command Aerospace Defense Command was a major command (military formation), command of the United States Air Force, responsible for air defense of the continental United States. It was activated in 1968 and disbanded in 1980. Its predecessor, Air De ...

(ADC)

30th Air Division The 30th Air Division (30th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Command, assigned to Tenth Air Force, being stationed at Sioux City Air National Guard Base, Sioux City Municipal Air ...

at Truax Field Wisconsin. It was inactivated on 1 April 1966.

History

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 Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface (Submarine#Armament, submarine-lau ...

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...

Indiana Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...

, most of

Iowa Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Ill ...

and northern

Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...

, 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 Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track ...

squadrons. On 1 October 1959, the new

Semi Automatic Ground Environment The Semi-Automatic Ground Environment (SAGE) was a system of mainframe computer, large computers and associated computer network, networking equipment that coordinated data from many radar sites and processed it to produce a single unified image ...

(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 An interceptor aircraft, or simply interceptor, is a type of fighter aircraft designed specifically for the defensive interception role against an attacking enemy aircraft, particularly bombers and reconnaissance aircraft. Aircraft that are c ...

(

F-102 Delta Dagger The Convair F-102 Delta Dagger is an interceptor aircraft designed and produced by the American aircraft manufacturer Convair. A member of the Century Series, the F-102 was the first operational supersonic interceptor and delta-wing fighter op ...

F-106 Delta Dart The Convair F-106 Delta Dart is an all-weather interceptor aircraft designed and produced by the American aircraft manufacturer Convair. The F-106 was designed in response to the 1954 interceptor program. Envisioned as an imagined "Ultimate In ...

) and radar squadrons in a state of readiness with training missions and series of exercises with

Strategic Air Command Strategic Air Command (SAC) was a United States Department of Defense Specified Command and a United States Air Force (USAF) Major Command responsible for command and control of the strategic bomber and intercontinental ballistic missile compon ...

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 The 20th Air Division is an inactive United States Air Force organization. Its last assignment was with Tactical Air Command at Tyndall Air Force Base, Florida where it was inactivated on 1 March 1983. During most of the division's history it ...

, and its units in Indiana were reassigned to the

34th Air Division The 34th Air Division (34th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Command at Custer Air Force Station, Michigan. It was inactivated on 31 December 1969. History Assigned to Air Def ...

Lineage

* 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

Assignments

37th Air Division The 37th Air Division (37th AD) is an inactive United States Air Force organization. Its last assignment was with Air Defense Command at Goose Air Force Base, Labrador, Canada It was inactivated on 30 June 1970. History Strategic Air Command Es ...

, 8 March 1957 * 30th Air Division, 1 April 1959 – 1 April 1966

Stations

* Truax Field, Wisconsin, 8 March 1957 – 1 April 1966

Components

Group

327th Fighter Group 3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious and cultural significance in many societies ...

(Air Defense) : Truax Field, Wisconsin, 1 June 1959 – 1 April 1966

Interceptor Squadron

* 319th Fighter-Interceptor Squadron : Bunker Hill AFB, Indiana, 1 July 1960 – 1 February 1963

Radar Squadrons

* 676th Radar Squadron : Antigo AFS, Wisconsin, 1 June 1964 – 1 April 1966 * 725th Aircraft Control & Warning Squadron (later 725th Radar Squadron) : Walnut Ridge AFS, Arkansas, 1 July 1961 – 1 August 1963 * 755th Aircraft Control & Warning Squadron (later 755th Radar Squadron)Cornett & Johnson, p. 164 : Williams Bay AFS, Wisconsin, 1 June 1959 – 1 April 1960 : Arlington Heights AFS, Illinois, 1 April 1960 – 1 April 1966 * 782nd Aircraft Control & Warning Squadron (later 782d Radar Squadron)Cornett & Johnson, pp. 168-170 : Rockville AFS, Indiana, 1 June 1959 – 1 April 1966 * 784th Aircraft Control & Warning Squadron (later 784th Radar Squadron) : Snow Mountain AFS, Kentucky, 1 June 1961 – 1 August 1961; 25 May 1962 - 1 April 1966 * 788th Aircraft Control & Warning Squadron (later 788th Radar Squadron) : Waverly AFS, Iowa, 1 June 1959 – 1 April 1966 * 790th Aircraft Control & Warning Squadron (later 790th Radar Squadron) : Kirksville AFS, Missouri, 1 June 1959 – 1 April 1966 * 791st Aircraft Control & Warning Squadron (later 791st Radar Squadron) : Hanna City AFS, Illinois, 1 June 1959 – 1 April 1966 * 798th Aircraft Control & Warning Squadron (later 798th Radar Squadron) : Belleville AFS, Illinois, 1 July 1961 – 1 April 1966

Aircraft

* F-102A, 1959-1966 * F-106A, 1960-1963

Notes

References

* * *
Radomes.org Chicago Air Defense Sector

External links

Photos of the Chicago Air Defense Sector
{{Aerospace Defense Command, state=collapsed 1957 establishments in Wisconsin 1966 disestablishments in the United States

Air Defense Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface (Submarine#Armament, submarine-lau ...

Military units and formations established in 1957 Military units and formations in Wisconsin