World War I

Organized in France on 4 April 1918, the Photographic Section No. 1 processed aerial photographs taken by flying units working with the I Corps Observation Group and the French 38th Army Corps, 5 April–November 1918.^[1][4]

Inter-war years

After moving back to the United States in June 1919, the unit was demobilized in July.^[4]

In September 1919 the unit was organized as the 1st Photographic Section, assigned to the 1st Wing and then the 1st Surveillance Group, where they processed aerial photography for associated observation squadrons in Texas until becoming the 3rd Observation Squadron on June 1, 1937.^[1][4]

World War II

At Langley Field, Virginia, the squadron engaged in aerial observation work attached to the Coast Artillery School using Bell P-39 Airacobras until April 1942. It supported ground forces on maneuvers during 1942, and served as a training and demonstration unit January 1943 – February 1944. The squadron was not manned or equipped, 1 Mar – 2 July 1944, and was disbanded in July.^[1][4]

Strategic Reconnaissance

Activated again on 28 May 1952 under Strategic Air Command as part of its global reconnaissance mission and known as the 3rd Strategic Reconnaissance Squadron.^[4] The squadron did not receive its first aircraft until 1 July 1953, when it immediately began familiarization training, followed by in-flight refueling training in February 1954. It received Boeing RB-47E Stratojet^[4] aircraft in March 1954, and conducted its first long-range mission (6 planes to Alaska for 10 days) in May 1954. The squadron deployed at RAF Upper Heyford, England, 14 September – 3 November 1954. Some of these flights were mounted from Thule in Greenland and probed deep into the heart of the Soviet Union, taking a photographic and radar recording of the route attacking SAC bombers would follow to reach their targets. Flights which involved penetrating mainland Russia were termed SENSINT (Sensitive Intelligence) missions. One RB-47 even managed to fly 450 miles inland and photograph the city of Igarka in Siberia. It photographed numerous Air Force bases and American cities, 1954–1958, and participated regularly in SAC exercises. Missions flown on a reduced scale after February 1958 when events showed the vulnerability of the RB-47 to Soviet air defenses and the development of the U-2 aircraft. It slowly became non-operational between 15 April and 1 July 1958 until inactivation in July 1958.^[1][4]

Vietnam War

On 1 May 1968, it was organized as the 3rd Air Commando Squadron at Nha Trang Air Base, South Vietnam, absorbing resources of the 14th Air Commando Squadron. It flew combat missions in Douglas AC-47D gunships in close air support of ground forces, providing flare illumination and gunfire in support of strategic hamlets, outposts and friendly forces under night attack. From 16 February – 1 May 1969, all squadron aircraft were maintained on ground alert when not flying, due to the Tet Offensive. It began transferring its gunships to the Republic of Vietnam Air Force in June 1969 and flew its last mission on 7 August 1969.^[1][4]

Electronic warfare training

On 15 May 1976, it was reactivated as the 3rd Tactical Electronic Warfare Training Squadron, and was not equipped with aircraft, operating out of Camp O'Donnell, Philippines, the Pacific Air Forces Electronic Warfare Range, the Crowe Valley Aerial Gunnery Range, and associated facilities. It provided realistic conventional, tactical, and electronic warfare training in a simulated combat environment during Cope Thunder exercises. These exercises provided combat training for fighter aircrews of the U.S. Marine, U.S. Navy, and allied air forces in the western Pacific area.^[4] Following the eruption of Mt. Pinatubo in June 1991, personnel were evacuated, and the squadron remained unmanned until its inactivation, on 30 September 1991.^[1]

Special operations

On 28 October 2005, the 3rd was reactivated as the 3rd Special Operations Squadron. The initial cadre of squadron members attended training in the spring and summer of 2005. The 3rd SOS flew MQ-1B UCAVs. Despite the lack of personnel the 3rd SOS flew 23% of the total Combined Force Air Component Command MQ-1 Predator hours for the last two months of 2005.^[4]

In 2005, the 3rd SOS supported the combatant commanders in both Operation Iraqi Freedom and Enduring Freedom. They logged 650 combat sorties in Afghanistan and 4,243 sorties in Iraq. The hours totaled over 14,000 for the combined theaters.^[4]

During 2007, the 3rd SOS doubled in size and tripled its combat capabilities. The squadron became the largest MQ-1B squadron in the Air Force within 20 months of its inception.

The 3rd SOS has become the "base-line" Remotely Piloted Aircraft for the Air Force Special Operations Command.^[4]

Assignments

• I Corps Observation Group, April 1918
• First Army Observation Group, November 1918 – April 1919
• Unknown, – 3 April July 1919
• 1st Wing, 27 September 1919
• 1st Surveillance Group, c. 12 November 1919
• Eighth Corps Area, June 1922 (attached to 1st Cavalry Division)
• 2nd Division Air Service (later 2nd Division Aviation), 24 March 1923 (attached to 1st Cavalry Division until June 1926)^[6]
• Eighth Corps area, 15 February 1929 (attached to 2nd Division)^[6]
• 3rd Attack Group, 8 May 1929 (attached to 2nd Division until 1 October 1930,^[6] then to 12th Observation Group)
• 12th Observation Group, 31 October 1931
• Eighth Corps Area, 1 March 1935 (attached to 12th Observation Group until 1 June 1937)
• Third Corps Area, 20 June 1937 (attached to Coast Artillery School)
• Coast Artillery School, c. 1939
• I Air Support Command, 1 September 1941 (attached to Coast Artillery School)
• 73rd Observation Group, 12 March 1942 (attached to Coast Artillery School until 5 April 1942)
• Second Air Force, 12 August 1942 (attached to II Ground Air Support Command)
• IV Ground Air Support Command (later IV Air Support Command), 7 September 1942 (attached to II Ground Air Support Command (later II Air Support Command) until 23 September 1942)
• Army Air Forces School of Applied Tactics, 21 January 1943
• Air Support Department, AAF School of Applied Tactics (later, Tactical Air Force, AAF Tactical Center), 18 February 1943 (attached to 432nd Observation Group (later 432 Reconnaissance Group 432 Tactical Reconnaissance Group), 27 Mar – 1 November 1943)
• Tactical Air Division, AAF Tactical Center, 4 January 1944
• Orlando Fighter Wing, 20 February 1944
• AAF Tactical Center, 28 March–2 July 1944
• 26th Strategic Reconnaissance Wing, 28 May 1952 – 1 July 1958
• Pacific Air Forces, 5 April 1968 (not organized)
• 14th Air Commando Wing (later 14 Special Operations Wing), 1 May 1968 – 15 September 1969
• 3rd Tactical Fighter Wing, 15 May 1976
• 6200 Tactical Fighter Training Group, 1 January 1980 – 30 September 1991
• 16th Operations Group (later 1st Special Operations Wing), 28 October 2005 – 1 October 2007^[3]
• 27th Special Operations Group, 1 October 2007 – present^[7]

Stations

Aircraft

Notes

Explanatory notes

Citations

Bibliography

 This article incorporates public domain material from the Air Force Historical Research Agency

• Clay, Steven E. (2011). US Army Order of Battle 1919–1941 (PDF). Vol. 3 The Services: Air Service, Engineers, and Special Troops 1919–1941. Fort Leavenworth, KS: Combat Studies Institute Press. ISBN 978-0-98419-014-0. LCCN 2010022326. OCLC 637712205. Archived from the original (PDF) on 27 September 2013. Retrieved 16 October 2012.
• Maurer, Maurer, ed. (1983) [1961]. Air Force Combat Units of World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-912799-02-1. LCCN 61060979. Archived from the original (PDF) on 20 December 2016. Retrieved 17 December 2016.
• Maurer, Maurer, ed. (1982) [1969]. Combat Squadrons of the Air Force, World War II (PDF) (reprint ed.). Washington, DC: Office of Air Force History. ISBN 0-405-12194-6. LCCN 70605402. OCLC 72556. Archived from the original (PDF) on 20 December 2016. Retrieved 17 December 2016.
• Ravenstein, Charles A. (1984). Air Force Combat Wings, Lineage & Honors Histories 1947–1977. Washington, DC: Office of Air Force History. ISBN 0-912799-12-9. Retrieved 17 December 2016.
• Wilson, Art (2008). Runways in the Sand. Blythe, California: Art Wilson. ISBN 978-0-615-21889-2. OCLC 316309702. LCC D769.85.C21 B598 2008