3/44: TOS USAAF as AT-11 s/n 43-10374. Served in many training units until 1949 and as T-11 served in many units as a utility plane until SOC in 12/52. In 1953 it was rebuilt as C-45H 52-10613 served with many units in Air Defense Command. 12/58: Davis-Monthan AFB, AZ., for storage. 1/59: SOC. To U.S. Forest Service. By 4/90: Heartland Museum Military Vehicles in Lexington, NE, with c/r N165ZA. 4/09: Delmar Cowan, Wichita, KS; operated by the Commemorative Air Force in Wichita.

30 Jan' 82: First flight. 10Feb '82: TOS USAF and assigned to the 51st Tactical Fighter Wing, Sunan Air Base, South Korea. Ca.1990: Modified to OA-10A. 4 Jan '00: AMARC, Davis-Monthan AFB, AZ as AC0197 for GPS and wing modifications. 25 Feb'00 to after 3/20: 422nd Test and Evaluation Squadron/53rd Test and Evaluation Group (later 53rd Wing), Nellis AFB, NV. Ca.2007: Converted to A-10C.

18 Sep '81: First flight. 26 Sep '81: TOS USAF as A-10A. 1981 to after August/86: 509th TFS/81st TFW, RAF Bentwaters, England. By April/89: 511th TFS/10th TFW, RAF Alconbury, England. Ca.1992: Modified OA-10A. By August/96: 55th FS/20th FW, Shaw AFB, SC. By May/03: 74th FS/23rd Fighter Group, Pope AFB, NC. By June/06: 74th FS/23rd Fighter Wing, Moody AFB, GA. Ca.2007: Converted to A-10C. By November/12 to after 2019: 75th FS/23rd Wing.

13 Jul '81: First flight. 31 Jul '81: TOS USAF and assigned to the 91st Tactical Fighter Squadron/81st Tactical Fighter Wing, RAF Bentwaters, England. By 10/95: 70th Fighter Squadron/347th Operations Wing, Moody AFB, GA. 7/00: 47th Fighter Squadron/917th Wing, Barksdale AFB, LA. Ca.2006: Converted to A-10C. 2014 to after 4/19: 47th Fighter Squadron/924th Fighter Wing, Davis-Monthan AFB, AZ.

30 November 1980: First flight. 6 December 1980: TOS USAF. By 1989: 57th Fighter Weapons Wing, Nellis AFB, NV. 9/97 to after 11/17: 422nd Test and Evaluation Squadron, 53rd Wing, Nellis AFB, NV. Ca.2006: Converted to A-10C.

24 Sep '80: First flight. 8 Oct '80: TOS USAF as A-10A. By 6/86: 47th Tactical Fighter Squadron/917th Tactical Fighter Wing (AFRES), Barksdale AFB, LA. By 5/90: 46th FS/917th TFW. By 2006: 47th FS/917th FW. 16 My '08: AMARC, Davis-Monthan AFB, AZ as AC0503 for conversion to A-10C. By 9/09: RTS with 47th FS, 917th Fighter Group. 6/13: 47th FS, 355th Fighter Wing, Davis-Monthan AFB, AZ. Ca. 9/18: 47th FS/924th FW, Davis-Monthan AFB, AZ.