# Air Education and Training Command Studies and Analysis Squadron

The Air Education and Training Command Studies and Analysis Squadron is a unit of the United States Air Force stationed at Randolph Air Force Base, Texas, where it reports directly to the headquarters of Air Education and Training Command, evaluating training programs and systems.
The squadron's first two predecessor units served in combat during World War II. The 21st Bombardment Squadron (Heavy) flew Consolidated B-24 Liberators in the Aleutian Campaign, where it participated in one of the earliest direct attacks against Japan. The 21st Bombardment Squadron, Very Heavy flew Boeing B-29 Superfortresses in the strategic bombing campaign against Japan, earning a Distinguished Unit Citation for attacks on the Japanese petroleum industry.
The squadron's other predecessor, the 21st Tactical Air Support Squadron served in combat in the Vietnam War from spring 1965 until the withdrawal of U.S. forces in 1973, earning several combat decorations. One squadron member, Captain Hilliard A. Wilbanks, was awarded the Medal of Honor for actions that helped rescue Vietnamese Rangers that had been ambushed by Viet Cong forces. The squadron served in the tactical air support role in the United States from 1973 through 1991. During this service, the three squadrons were consolidated as a single unit in September 1985.
The squadron assumed its current role in 1992, when, as the 21st Test and Evaluation Squadron, it replaced the 3307th Test and Evaluation Squadron at Randolph.

## Mission

The Air Education and Training Command Studies and Analysis Squadron mission is to minimize training costs while meeting Air Force mission goals. It evaluates the long-term impact of changes to training or curriculum of courses offered by Air Education and Training Command (AETC) and predicts Air Force resource requirements for more than five years into the future. It uses analytics to enhance command decision making that impacts numbers or categories of personnel, combining essential modeling, optimization and scheduling environments.

## History
### World War II
#### Antisubmarine and Alaskan service

The first predecessor of the squadron was activated at March Field, California in January 1941 as the 21st Bombardment Squadron (Heavy), one of the original squadrons of the 30th Bombardment Group. The 21st was equipped with a mix of Douglas B-18 Bolo, Boeing YB-17 Flying Fortress, and Lockheed A-29 Hudson aircraft. In May, the squadron moved to New Orleans Airport, where it continued training as a bomber unit.
When the Japanese attacked Pearl Harbor, the squadron began antisubmarine patrols over the Gulf of Mexico and dispatched a detachment to Savannah Army Air Base, Georgia to hunt for U-boats off the Atlantic Coast. By the end of the month, though, the squadron was patrolling the Pacific Coast with its Hudsons, the 30th Group having returned to March Field after a brief stay at Muroc Army Air Field, California. From May through June 1942, the squadron operated through detachments at McChord Field, Washington and Hamilton Field as well as at civilian airports in Southern California.
in June 1942, the Japanese attacked Dutch Harbor, Alaska. The squadron's air echelon moved to Fort Glenn Army Air Base, on Umnak Island, Alaska to reinforce the 28th Composite Group in the Aleutian Islands, using the Consolidated B-24 Liberator and the LB-30 model of the Liberator. By September, the rest of the squadron had joined it in Alaska. The squadron frequently operated from advanced bases in the Aleutian Chain. On 14 September, along with the 404th Bombardment Squadron of the 28th Group, it conducted the first raid from Adak Army Air Field, an attack on Japanese naval forces at Kiska. By February 1943, American forces had occupied Amchitka, and the squadron began operating from Amchitka Army Air Field. On 18 July, the squadron provided planes that, along with planes from the 36th and 404th Squadrons, attacked Shimushu and Paramushiru in the Kuril Islands. Although the attack caused little damage, it was the first attack on Japan itself after the Doolittle Raid.
Although the squadron spent fifteen months operating under the control of the 28th Group in Alaska, it remained formally assigned to the 30th Group at March Field. By September 1943, when the Aleutian Campaign had ended and the squadron was released to return to the United States, the 30th Group and its remaining squadrons had departed for the Pacific, and the squadron was disbanded at Smoky Hill Army Air Field, Kansas on 1 November.

#### Strategic bombing of Japan

The second predecessor of the squadron was the 21st Bombardment Squadron, Very Heavy, which was activated at Dalhart Army Air Field, Texas as one of the original four squadrons of the 16th Bombardment Group. However, before the squadron could be manned or equipped, groups flying the Boeing B-29 Superfortress were reorganized from four bombardment squadrons with seven aircraft each to three bombardment squadrons with ten aircraft each and the squadron was inactivated on 10 May 1944.
The squadron's inactivation lasted only three weeks, however, and on 1 June it was again activated at Dalhart, this time as a component of the 501st Bombardment Group. In August, the squadron moved to Harvard Army Air Field, Nebraska, where it trained for combat with the Superfortress. It left Harvard in March 1945 after completing its training and arrived at its combat station, Northwest Field, Guam, on 14 April. The squadron flew its first combat mission against Truk Island on 19 June, and eight days later made its first attack on Japan. The unit's missions focused on Japan's petroleum facilities on Honshu. In July 1945, it received a Distinguished Unit Citation for attacks on the Maruzen oil refinery at Shimotso, the Utsobo oil refinery at Yokkaichi and storage facilities at Kawasaki.
After VJ Day, the squadron dropped food and supplies to prisoners of war in Japan, China, Korea and Manchuria. The squadron remained on Guam until it was inactivated in June 1946.

### Vietnam War

The 21st Tactical Air Support Squadron was organized at Pleiku Air Base, South Vietnam on 8 May 1965, as one of three squadrons activated to augment the 19th Tactical Air Support Squadron, which had been operating in the forward air control mission in South Vietnam since 1963. It initially flew Cessna O-1 Bird Dog aircraft in the forward air control mission. However, it was not until August that the squadron became operational. The 21st operated primarily in the II Corps Area, with its aircraft dispersed to support United States Army, ARVN and Korean units. While initially organizing, it directed air strikes during the Battle of Duc Co
The squadron performed visual reconnaissance with light aircraft, flying slowly at low altitude. By patrolling the same area regularly, squadron forward air controllers grew familiar with the terrain and learned to detect changes that could indicate enemy forces hiding below. The controller called in fighter-bombers and marked targets with smoke grenades or white phosphorus rockets. After the attacks, controllers flew low over the target to assess the damage. In September 1966, the 21st moved from the highlands of Pleiku to the coastal base of Nha Trang Air Base.
On 27 February 1967, Captain Hilliard A. Wilbanks, one of the squadron's forward air controllers, was flying visual reconnaissance in his Cessna O-1 ahead of a South Vietnamese ranger battalion. He located a well-concealed numerically superior Viet Cong (VC) force poised to ambush the rangers. The enemy immediately fired on his plane and advanced on the ranger force, which was pinned down by devastating fire. Capt. Wilbanks recognized that close air support would not be able to arrive soon enough to help the rangers to withstand the advancing enemy. Flying through withering fire at treetop level, he flew over the VC and inflicted many casualties by firing his rifle out the side window of his Bird Dog. Despite increasingly intense antiaircraft fire, he made repeated low passes over the VC. His tactics interrupted the VC's advance and allowed the rangers to withdraw to safety. During his final attack, Capt. Wilbanks was mortally wounded and his aircraft crashed between the opposing forces. He saved numerous friendly personnel from certain injury or death. For his action that day, he was awarded the Medal of Honor.
The single engine of the O-1 Bird Dog made it particularly vulnerable to ground fire and it lacked radio equipment that would permit it to communicate with ground troops and attacking aircraft at the same time. Its low speed and endurance, in addition to making it more vulnerable, sometimes delayed its arrival in areas of operation and the time it could operate. In 1968, the squadron began equipping with twin engined, faster Cessna O-2 Skymasters that had higher speed, greater endurance and better communications equipment, although the O-1 would not be completely phased out of squadron operations until 1971. The 21st moved to Cam Ranh Bay Air Base, South Vietnam in September 1969, and to Phan Rang Air Base two years later. As the United States withdrew forces from Vietnam, the squadron moved to Tan Son Nhut Air Base in January 1972 and was inactivated there on 21 February 1973. Aircraft losses during the war included 41 O-1s, 16 O-2s and an OV-10, while 29 crewmembers lost their lives in combat.

### Cold War

The squadron was again activated at MacDill Air Force Base, Florida, at the end of August 1973. At MacDill, it was equipped with the Cessna OT-37 Tweet and was assigned to the 68th Tactical Air Support Group, which was located at Shaw Air Force Base, South Carolina. Little less than a year later, on 1 July 1974, it moved to Shaw, where it joined its parent 507th Tactical Air Control Group, which assumed the mission of the 68th Group when the 68th was inactivated in June 1974. At Shaw, the squadron converted from the OT-37 to the OV-10 Bronco in 1988. It re-equipped with the Fairchild Republic OA-10 Thunderbolt II in 1991, shortly before being inactivated and transferring its mission, equipment and personnel to the 21st Tactical Fighter Squadron in November 1991.

### Testing, evaluation and analysis

The squadron was redesignated the 21st Test and Evaluation Squadron and activated on 15 September 1992 at Randolph Air Force Base, where it was assigned to the 12th Operations Group. It absorbed the resources of the 3307th Test and Evaluation Squadron, which had been activated on 15 September 1991 and assigned to the 3300th Training Support Group, and which was simultaneously inactivated. Air Training Command (ATC) had established the 3307th Squadron to perform tests and evaluations of new ATC systems including aircraft, simulators and software to determine if these acquisitions met operational requirements.
The squadron became the Air Education and Training Command Studies and Analysis Flight at the end of March 1994. In April 1997, it added the resources of the 602d Training Support Squadron at Edwards Air Force Base, California, which developed training programs for new weapons systems as they were acquired by the Air Force and became a squadron again. Personnel at Edwards formed Detachment 1 of the squadron. The Edwards detachment later downgraded to Operating Location A in 2003, and its mission and personnel were absorbed by the squadron at Randolph in 2008. The squadron currently includes a technology innovation flight and a strategy analysis flight.

## Lineage
### 21st Bombardment Squadron (Heavy)

* Constituted as the 21st Bombardment Squadron (Heavy) on 20 November 1940
    Activated on 15 January 1941
    Disbanded on 1 November 1943
    Reconstituted on 19 September 1985 and consolidated with the 21st Bombardment Squadron, Very Heavy and the 21st Tactical Air Support Squadron as the 21st Tactical Air Support Squadron

### 21st Bombardment Squadron, Very Heavy

* Constituted as the 21st Bombardment Squadron, Very Heavy on 28 March 1944
    Activated on 1 April 1944
    Inactivated on 10 May 1944
* Activated on 1 June 1944
    Inactivated on 10 June 1946
    Consolidated with the 21st Bombardment Squadron (Heavy) and the 21st Tactical Air Support Squadron as the 21st Tactical Air Support Squadron on 19 September 1985

### Air Education and Training Command Studies and Analysis Squadron

* Constituted as the 21st Tactical Air Support Squadron (Light) on 26 April 1965 and activated (not organized)
    Organized on 8 May 1965
    Inactivated on 21 February 1973
* Redesignated 21st Tactical Air Support Squadron on 17 July 1973
    Activated on 31 August 1973
    Consolidated with the 21st Bombardment Squadron (Heavy) and the 21st Bombardment Squadron, Heavy on 19 September 1985
    Inactivated on 1 November 1991
* Redesignated 21st Test and Evaluation Squadron on 1 September 1992
    Activated 15 September 1992
    Redesignated Air Education and Training Command Studies and Analysis Flight on 31 March 1994
    Redesignated Air Education and Training Command Studies and Analysis Squadron on 1 April 1997

### Assignments

* 30th Bombardment Group, 15 January 1941 (under operational control of 28th Composite Group, 9 January 1942–September 1943)
* Second Air Force, 18 October 1943 – 1 November 1943
* 16th Bombardment Group, 1 April 1944 – 10 May 1944
* 501st Bombardment Group, 1 June 1944 – 10 June 1946
* Pacific Air Forces, 28 April 1965 (not organized)
* 2d Air Division, 8 May 1965 (attached to Tactical Air Support Group 6250th, Provisional after 1 August 65)
* 505th Tactical Control Group, 8 November 1965 (attached to Tactical Air Support Group, Provisional, 6250th 1–8 September 1966, Tactical Air Support Group, Provisional, 6253d after 9 September 1966)
* 504th Tactical Air Support Group, 8 December 1966
* 377th Air Base Wing, 15 November 1972 – 21 February 1973
* 68th Tactical Air Support Group, 31 August 1973
* 507th Tactical Air Control Group (later 507th Tactical Air Control Wing), 15 June 1974 – 1 November 1991
* 12th Operations Group, 15 September 1992
* Air Education and Training Command, 31 March 1994 – present

### Aircraft

* Douglas B-18 Bolo, 1941
* Boeing YB-17 Flying Fortress, 1941
* Lockheed A-29 Hudson, 1941-1942
* Consolidated LB-30 Liberator, 1942
* Consolidated B-24 Liberator, 1942-1943
* Boeing B-29 Superfortress, 1944-1946
* Cessna O-1 Bird Dog, 1965-1971
* Cessna O-2 Skymaster, 1968-1973
* North American OV-10 Bronco, 1971, 1973-1988, 1989-1991
* Sikorsky CH-3, 1975-1977
* Cessna OT-37 Dragonfly, 1986-1988
* Fairchild Republic OA-10 Thunderbolt II, 1991

### Awards and campaigns

| Award | Dates | Notes |
| Distinguished Unit Citation | Japan, 6 July 1945-13 July 1945 | 21st Bombardment Squadron, Very Heavy |
| Presidential Unit Citation | 8 August 1966-7 August 1967 | 21st Tactical Air Support Squadron |
| Presidential Unit Citation | 8 August 1967-7 August 1968 | 21st Tactical Air Support Squadron |
| Presidential Unit Citation | 1 August 1968-31 August 1969 | 21st Tactical Air Support Squadron |
| Presidential Unit Citation | 1 January 1970-31 December 1970 | 21st Tactical Air Support Squadron |
| Presidential Unit Citation | 30 January 1971-31 December 1971 | 21st Tactical Air Support Squadron |
| Air Force Outstanding Unit Award with Combat "V" Device | 15 March 1972-21 February 1973 | 21st Tactical Air Support Squadron |
| Air Force Outstanding Unit Award | 16 Jun 1975-31 May 1977 | 21st Tactical Air Support Squadron |
| Air Force Outstanding Unit Award | 1 May 1981-30 April 1983 | 21st Tactical Air Support Squadron |
| Air Force Outstanding Unit Award | 1 May 1985-30 April 1987 | 21st Tactical Air Support Squadron |
| Air Force Outstanding Unit Award | 15 September 1992-30 June 1993 | 21st Test & Evaluation Squadron |
| Air Force Outstanding Unit Award | 1 July 1993-3 March 1994 | 21st Test & Evaluation Squadron |
| Air Force Organizational Excellence Award | 1 January 2006-31 December 2007 | AETC Studies & Analysis Squadron |
| Air Force Organizational Excellence Award | 1 January 2013-31 December 2014 | AETC Studies & Analysis Squadron |
| Vietnamese Gallantry Cross with Palm | 8 May 1965-21 February 1973 | 21st Tactical Air Support Squadron |
| Campaign | Dates | Notes |
| Antisubmarine | 7 December 1941 – 7 June 1942 | 21st Bombardment Squadron (Heavy) |
| Air Offensive, Japan | 7 June 1942 – 19 September 1943 14 April 1945 – 2 September 1945 | 21st Bombardment Squadron (Heavy) 21st Bombardment Squadron, Very Heavy |
| Aleutian Islands | 7 June 1942 – 24 August 1943 | 21st Bombardment Squadron (Heavy) |
| Eastern Mandates | 14 Apr 1945 | 21st Bombardment Squadron, Very Heavy |
| Western Pacific | 17 April 1945 – 2 September 1945 | 21st Bombardment Squadron, Very Heavy |
| Vietnam Defensive | 8 May 1965 – 30 January 1966 | 21st Tactical Air Support Squadron |
| Vietnam Air | 31 January 1966 – 28 June 1966 | 21st Tactical Air Support Squadron |
| Vietnam Air Offensive | 29 June 1966 – 8 March 1967 | 21st Tactical Air Support Squadron |
| Vietnam Air Offensive, Phase II | 9 March 1967 – 31 March 1968 | 21st Tactical Air Support Squadron |
| Vietnam Air/Ground | 22 January 1968 – 7 July 1968 | 21st Tactical Air Support Squadron |
| Vietnam Air Offensive, Phase III | 1 April 1968 – 31 October 1968 | 21st Tactical Air Support Squadron |
| Vietnam Air Offensive, Phase IV | 1 November 1968 – 22 February 1969 | 21st Tactical Air Support Squadron |
| Tet 1969/Counteroffensive | 23 February 1969 – 8 June 1969 | 21st Tactical Air Support Squadron |
| Vietnam Summer-Fall 1969 | 9 June 1969 – 31 October 1969 | 21st Tactical Air Support Squadron |
| Vietnam Winter-Spring 1970 | 3 November 1969 – 30 April 1970 | 21st Tactical Air Support Squadron |
| Sanctuary Counteroffensive | 1 May 1970 – 30 June 1970 | 21st Tactical Air Support Squadron |
| Southwest Monsoon | 1 July 1970 – 30 November 1970 | 21st Tactical Air Support Squadron |
| Commando Hunt V | 1 December 1970 – 14 May 1971 | 21st Tactical Air Support Squadron |
| Commando Hunt VI | 15 May 1971 – 31 July 1971 | 21st Tactical Air Support Squadron |
| Commando Hunt VII | 1 November 1971 – 29 March 1972 | 21st Tactical Air Support Squadron |
| Vietnam Ceasefire Campaign | 29 March 1972 – 28 January 1973 | 21st Tactical Air Support Squadron |