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11th Fighter-Interceptor Squadron
11th Fighter-Interceptor Squadron - Emblem
Emblem of the 11th Fighter-Interceptor Squadron
Country United States
Branch United States Air Force
Service history
Active 1942–1968
11th Fighter-Interceptor Squadron-F-106-about 1960

Newly received F-106, 1960

11th Fighter-Interceptor Squadron-2-F-106s-about 1967

2 F-106s preparing to land, about 1967

11th Fighter-Interceptor Squadron F-102 56-1500 Duluth IAP

F-102 Delta Dagger 56-1500, 1958

P-40 Warhawk

An 11th FS P-40 in Alaska, 1943.

The 11th Fighter-Interceptor Squadron is an inactive United States Air Force unit. Its last assignment was with the 343d Fighter Group, stationed at Duluth Airport, Minnesota. It was inactivated on 30 June 1968.


Established in early 1941 as an Army Air Corps fighter squadron, assigned to the Southeast Air District as part of the mobilization of the United States prior to its entry into World War II. After the Pearl Harbor Attack, was deployed to the Alaska Territory for the defense of the territory and Aleutian Islands.

After the Japanese invasion of the Aleutians in June 1942, was engaged in combat operations 1942-1943, equipped with P-40 Warhawks and long-range P-38 Lightnings for offensive operations against Japanese fortifications on Attu and Kiska; took part in the liberation of Attu, 1943. Remained in Alaska for the balance of the war, demobilizing during the summer of 1945; inactivating on Shymea in the Aleutians, 1946.

Reactivated in December 1952 as part of Air Defense Command, replacing the Federalized Minnesota ANG's 179th FIS with F-51D Mustangs. In the fall of 1953 the unit transitioned into jet F-89D Scorpions and later the F-102 Delta Dagger. In June 1960 the 11th FIS transitioned into F-106 Delta Darts which it flew until September 1968 when it was inactivated.

Upon inactivation, the squadron was re-designated the 87th FIS, remaining at Duluth IAP.


  • Constituted 11th Pursuit Squadron (Interceptor) on 20 November 1940
Activated on 15 January 1941
Redesignated 11th Fighter Squadron on 15 May 1942
Inactivated on 15 August 1946
  • Redesignated 11th Fighter-Interceptor Squadron on 10 October 1952
Activated on 1 December 1952, absorbing equipment of Minnesota Air National Guard 179th Fighter-Interceptor Squadron
Inactivated on 30 June 1968, personnel and equipment being reassigned to 87th Fighter-Interceptor Squadron


Attached to Provisional Interceptor Command, Alaska, 2 January 1942


Detachment at: Fort Randall Army Airfield, Alaska Territory, 25 May-c. 1 September 1942
Detachment at: Fort Glenn Army Airfield, Alaska Territory, 26 May–June 1942
Detachment at: Amchitka Army Airfield, Alaska Territory, 27 March-c. 17 May 1943, and C. 23 March 1944 – 20 July 1945



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