115th Operations Group

176th Fighter-Interceptor Squadron F-89J 53-2686 in 1964

The group trained for its air defense mission with annual training performed at Volk Field from 1956 to 1962. Beginning in 1963, it moved to "year-around" training. In January 1960, Northrop F-89 Scorpion crews assumed an around-the-clock runway alert commitment of two armed aircraft. With this undertaking came the F-89J with an armament platform that included the AIR-2 Genie. The AIR-2A was the first US air-to-air missile with a nuclear warhead. The 176th FIS exchanged their F-89s for the Convair F-102 Delta Dagger in early 1966.

176th Fighter Interceptor Squadron Convair F-102A-75-CO Delta Dagger 56-1279 taking off from Truax Field, Wisconsin, 1970

In May 1966, the group replaced its F-89s with the Convair F-102 Delta Dagger. After a period of retraining in the new supersonic interceptors, the unit resumed its air defense "runway alert" mission in the spring of 1967. One year later in June 1969, the unit airlifted to Gulfport, Mississippi for summer training, ending six years of "year around" alerts at their home base.

In September 1972, the group's 176th Squadron won the William Tell Competition in the F-102 category. The event, held at Tyndall Air Force Base, included top Air National Guard, Canadian Air Force and active Air Force units worldwide. The competition included 12 teams of 48 aircraft, each team scored on aerial marksmanship, weapons control, weapons loading and maintenance.

Air National Guard O-2 Skymaster

In 1974, the group, named the 115th Fighter-Interceptor Group since 1972, replaced its F-102s with the Cessna O-2A Skymaster forward air control aircraft and became the 115th Tactical Air Support Group. The O-2 was the military version of the Cessna 337 Skymaster, a high wing, twin-boom aircraft with a unique centerline pusher/tractor twin engine configuration. The O-2A was used in forward air control missions, often in conjunction with a ground forward air controller accompanied by a radio operator, maintenance, and driver (ROMAD) team. Its gaining command changed from Air Defense Command to Tactical Air Command. In January 1979 the group was inactivated and its components assigned directly to its parent 128th Tactical Air Support Wing.

Group F-16C on the runway at Truax Field[2]

With the end of the Cold War, the early 1990s marked several changes. In 1995, the 128th Fighter Wing became the 115th Fighter Wing as the Air National Guard implemented the Air Force Objective Wing organization. The reorganization including reactivating the 115th as the 115th Operations Group.

The 115th Wing now flew the F-16C/D block 30 Fighting Falcon airframes with an enlarged air inlet. The first F-16s had arrived at Truax on 1 April 1993. The current role of the group is air interdiction and close air support. The group is capable of air-to-air, close air support and precision guided bombing missions. It operates munitions such as the JDAM series bombs and the AIM-9X air-to-air missile.

Operations participated in by the 115th Group include: Operation Coronet Chariot, Karup AS, Denmark 1994, Operation Northern Watch, Incirlik Air Base, Turkey 1997, Operation Southern Watch, Al Jaber Air Base, Kuwait 1997-98, Operation Southern Watch, Prince Sultan Air Base, Saudi Arabia 1999, Operation Coronet Nighthawk, Curacao, Netherlands Antilles 2001, Operation Enduring Freedom, Al Udeid Air Base, Qatar 2004–05, Balad Air Base, Iraq, 2006, 08, & 09, Africa, 2013 and Operation Noble Eagle, from 11 September 2001 to the present.

• 128th Air Defense Wing, 15 April 1956
• 126th Air Defense Wing, 1 March 1958
• Wisconsin Air National Guard, 1 August 1969
• 128th Fighter-Interceptor Wing (later 128th Tactical Air Support Wing), 1 January 1972 - 1 January 1979
• 115th Fighter Wing, 1 October 1994 – present

Gaining commands[3]

Air Defense Command, 15 April 1956

Tactical Air Command, 9 November 1974 - 1 January 1979

Air Combat Command, 1 October 1994 - present

Operational squadron

• 176th Fighter-Interceptor Squadron (later 176th Tactical Air Support Squadron, 176th Fighter Squadron), 15 April 1956 – 1 January 1979, 1 October 1994 – present

Support units

• 115th USAF Dispensary (later 115th USAF Clinic), 15 April 1956 – c. 1 April 1972
• 115th Air Base Squadron (later 115th Combat Support Sq), 15 April 1956 – c. 1 April 1972
• 115 Consolidated Aircraft Maintenance Squadron, 1 January 1959 – c. 1 April 1972
• 115th Materiel Squadron, 15 April 1956 – 20 May 1964
• 115th Operations Support Squadron, 1 October 1994 – present
• 115th Supply Squadron, 20 May 1964 – c. 1 April 1972
• 115th Civil Engineering Flight, 1 November 1969 – c. 1 April 1972

• Truax Field (later Truax Field Air National Guard Base), Wisconsin, 15 March 1992 – present

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

• Cornett, Lloyd H; Johnson, Mildred W (1980). A Handbook of Aerospace Defense Organization, 1946 - 1980 (PDF). Peterson AFB, CO: Office of History, Aerospace Defense Center. Archived from the original (PDF) on 13 February 2016. Retrieved 23 March 2012.
• 115th Fighter Wing website history
• 115th Fighter Wing@globalsecurity.org
• Rogers, B. (2006). United States Air Force Unit Designations Since 1978. ISBN 1-85780-197-0