Military unit
The 966th Airborne Air Control Squadron is an active United States Air Force unit assigned to the 552d Air Control Wing at Tinker Air Force Base, Oklahoma. It operates the Boeing E-3 Sentry Airborne Warning and Control System aircraft conducting training of crews in airborne command and control missions.
The squadron's first predecessor is the 466th Bombardment Squadron which served during World War II as an Operational Training Unit, and later as a Replacement Training Unit. It was inactivated in the spring of 1944 in a general reorganization of Army Air Forces support and training units in the United States.
The second predecessor of the squadron was organized in India as the 166th Liaison Squadron. It provided light transport, observation, and aeromedical evacuation support for Allied forces fighting in Burma. Following V-J Day, it returned to the United States for inactivation.
The 966th Airborne Early Warning and Control Squadron was organized in 1962 to provide seaward radar coverage in the Gulf of Mexico and Caribbean Sea. It also supported Lockheed U-2 Dragon Lady missions over Cuba and NASA rocket recovery. After 1965, it deployed aircrews to Viet Nam and Thailand to provide radar coverage over North Viet Nam. The squadron was inactivated at the end of 1969.
Mission.
The squadron is the Boeing E-3 Sentry formal training unit (FTU) for all Airborne Warning and Control System aircrew.
It is Air Combat Command's largest flying training unit, training all active duty and Air Force Reserve Command E-3 pilots and mission crew, training approximately 500 initial qualification students every year. It provides the combat Air Force with airborne systems and personnel for surveillance, warning and control of strategic, tactical, and special mission forces. It also provides upgrade training to approximately 200 students annually. With its initial and upgrade training for various crew positions it teaches 30 different courses.
In addition to its training mission, the squadron maintains its personnel and equipment in readiness for dispersal and augmentation of tactical forces worldwide.
Organization.
The squadron has 180 personnel assigned, not counting trainees.
Until January 2020, the squadron used planes assigned to other squadrons of the 552d Air Control Wing, when it received a dedicated E-3 Sentry. This number had increased to four aircraft by 2023. The squadron also trains with the use of simulators
History.
World War II.
Bomber training.
The first predecessor of the squadron, the 466th Bombardment Squadron was activated on 15 July 1942 at Topeka Army Air Base, Kansas as one of the four original squadrons of the 333d Bombardment Group. In August, it began operating as an Operational Training Unit (OTU) for Boeing B-17 Flying Fortress units. The OTU program involved the use of an oversized parent unit to provide cadres to "satellite groups" The OTU program was patterned after the unit training system of the Royal Air Force. The parent assumed responsibility for satellite unit training and oversaw their expansion with graduates of Army Air Forces Training Command schools to become effective combat units. Phase I training concentrated on individual training in crewmember specialties. Phase II training emphasized the coordination for the crew to act as a team. The final phase concentrated on operation as a unit.
Later that year, the squadron traded its Flying Fortresses for Consolidated B-24 Liberators.
In February 1943, the squadron moved to Dalhart Army Air Field, Texas. However, many of the Army Air Forces' bomber units had been activated. With the exception of special programs, like forming Boeing B-29 Superfortress units, training “fillers” for existing units became more important than unit training. 
The squadron mission changed to becoming a Replacement Training Unit (RTU). RTUs were also oversized units, but their mission was to train individual pilots or aircrews. It continued this mission through November 1943.
The AAF was finding that standard military units like the 466th, whose manning was based on relatively inflexible tables of organization were proving not well adapted to the training mission, even more so to the replacement mission. Accordingly, the Army Air Forces adopted a more functional system in which each base was organized into a separate numbered unit. The 466th and other training and support units at Dalhart were disbanded or inactivated on 1 April 1944 and replaced by the 232d AAF Base Unit. In 1985, the squadron was consolidated with the active 966th Airborne Warning and Control Training Squadron.
Special operations.
The squadron's second predecessor, the 166th Liaison Squadron, was activated at Burnpur Airfield, India on 3 September 1944, when the 1st Air Commando Group reorganized its light plane and light cargo sections into three liaison squadrons. It moved to Yazagyo Airfield, Burma in November 1944 and began operations with its Stinson L-5 Sentinels and Noorduyn C-64 Norseman. It flew aeromedical evacuation missions and provided light transport services for ground forces in Burma until May 1945, when it was withdrawn to Burnpur Airfield.
After V-J Day, the squadron remained in India until October 1945. It returned to the United States and upon arrival at the Port of Embarkation was inactivated at Camp Kilmer, New Jersey on 3 November 1945. In 1985, the squadron was consolidated with the active 966th Airborne Warning and Control Training Squadron.
Airborne warning and control.
Operations from Florida.
In the 1950s, Air Defense Command established the 551st Airborne Early Warning and Control Wing to extend air defense radar coverage and fighter control seaward over the Atlantic beyond the range of shore based radars. Once Cuba was no longer a friendly power, similar coverage was extended over the Gulf of Mexico and adjacent waters. The 551st Wing began sending crews to McCoy Air Force Base, Florida on temporary duty to provide this coverage. The 966th Airborne Early Warning and Control Squadron was organized on 1 February 1962 at McCoy to provide the coverage on a permanent basis. The squadron was equipped with Lockheed EC-121D Warning Stars, which were in the process of being upgraded to EC-121Hs, which were equipped with a data processor that enabled aircraft on station to feed radar data directly to Semi Automatic Ground Environment control centers. Initially, the squadron also operated the Lockheed TC-121 Constellation for training aircrews.
When flying active air defense patrols, the squadron's aircraft came under the operational control of the Montgomery Air Defense Sector. The sector was inactivated in April 1966, and control was exercised by the 32nd Air Division. In addition to its primary active air defense mission, the squadron assisted with antisubmarine patrols and developed weather information in its area of operations. It occasionally supported Strategic Air Command and Military Airlift Command operations. It supported NASA by tracking rocket boosters as they fell back into the ocean after test launches.
Later the squadron added three EC-121Q aircraft, which were used for Operation Gold Digger missions. Gold Digger missions monitored and tracked Lockheed U-2 Dragon Lady photographic reconnaissance missions over Cuba. These missions were flown at very low altitude off the Florida Keys, tracking the path of the U-2 they were supporting. The low altitude permitted the radar signals (the search radar was under the EC-121 fuselage) to "bounce" off the surface of the water and detect the high altitude U-2s. 
During the Cuban Missile Crisis, the squadron was reinforced on 20 October 1962 by six EC-121s deployed from the 552d Airborne Early Warning and Control Wing at McClellan Air Force Base, California. Along with the deployment of Navy Grumman WF-2s to Key West Naval Air Station, this enabled the maintenance of three separate airborne warning tracks off southern Florida, rather than the single orbit usually maintained. On 3 December, the forces augmenting the 966th were released and the squadron resumed its normal posture. The squadron was reassigned to the 552d Wing in May 1963.
Beginning in April 1965, the squadron rotated aircrews to Southeast Asia to support the Big Eye (later College Eye) Task Force. The task force was located at Tan Son Nhut Airport, Viet Nam until 1967, when it moved to Korat Royal Thai Air Force Base, Thailand. Its EC-121Ds provided radar coverage for United States forces over North Viet Nam from orbits flown over Laos and the Gulf of Tonkin. 
In July 1969, the squadron was returned to the control of the 551st Wing. It was inactivated along with the wing on 31 December 1969.
Aircrew training.
The 966th was redesignated the 966th Airborne Warning and Control Training Squadron and activated at Tinker Air Force Base, Oklahoma on 1 May 1976.
The 966th began training aircrews in 1977. For its first two years, a former Boeing WC-135 Constant Phoenix atmospheric sampling aircraft was modified back to C-135C configuration and used as a proficiency training aircraft and for support. In addition to its assigned E-3s, the squadron has also operated two civilian Boeing 707s to train flight crews.
In December 1983, academic training was split off from the squadron with the formation of the 552nd Training Squadron, which also serves as the administrative unit for students in initial and upgrade training. It was redesignated the 966th Airborne Air Control Squadron in July 1994, although its mission did not change.
 Activated on 15 July 1942
 Inactivated on 1 April 1944
 Activated on 3 September 1944
 Inactivated on 3 November 1945
Lineage.
966th Airborne Air Control Squadron
 Organized on 1 February 1962
 Inactivated on 31 December 1969
 Redesignated 966th Airborne Warning and Control Training Squadron on 5 May 1976
 Activated on 1 July 1976
 Redesignated 966th Airborne Air Control Squadron on 1 July 1994
Stations.
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Aircraft.
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References.
Notes.
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