4th and last B-1A built; first with ejection seats instead of a crew capsule. 2/79: First flight. Ca.6/79: TOS USAF. Used primarily as an avionics testbed for the B-1B program. 16 Dec 86: Flew to the Air Force Museum. 2003: Became part of the AFM Loan Program after being replaced by B-1B 84-0051. 22 Oct 03: Trucked dismantled to the Strategic Air & Space Museum in Ashland, NE. By 2006: Placed on display indoors.

9/56: TOS USAF; assigned to the Air Force Test Center (Air Proving Ground Command), Eglin AFB, FL; converted to JB-57 for testing. 12/57: Air Proving Ground Center (Air R&D Command), Eglin, with deployments to Wright-Patterson AFB, OH and Kirtland AFB, NM. 1967: Converted to B-57E standard. 11/68: Armament Development and Test Center (A. F. Systems Command), Eglin. 12/69: SOC and ferried to Offutt AFB, NE, for display at the SAC Museum. 1997: Moved to the new museum facility in Ashland, NE.

June/55: TOS USAF and assigned to the 93rd Bombardment (Heavy) Wing (SAC), Castle AFB, CA; first operational B-52 assigned to SAC. December/63: 22nd Bomb (H) Wing (SAC), March AFB, CA. 29 September 1965: Flown to Offutt AFB, NE, and struck off strength to put on display with the SAC Museum. In 1997 the plane was moved to the new facility at Ashland, NE.

15 Aug 1950: TOS USAF; assigned to the 2750th Air Base Wing (AMC), Wright-Patterson AFB, OH. 4/51: HQ Air R& D Command, WPAFB. Redesignated ERB-45C; modified for various in flight test programs including jet engine testing, avionics upgrades and new reconnaissance equipment. 6/51: Wright Air Development Center (ARDC), WPAFB. 6/54: Loaned to Pratt and Whitney Corp., for special test use. 11/55: Redesignated JRB-45C. 4/57: Redesignated NRB-45C. 11/71: SOC. Last RB-45 in use and ferried to Offutt AFB, NE, for display with the Strategic Air Command Museum. 1997: Trucked to Ashland, NE.

22 Dec 1953: TOS USAF and assigned to the 7th Bombardment Wing (Heavy) at Carswell AFB, TX. 30 Sep 1954: 42nd Bomb Wing (H), Loring AFB, ME. 10 Aug 1956: 95th Bomb Wing (H) at Biggs AFB, TX. 2/59: Davis-Monthan AFB, AZ for storage. 14 Apr 1959: SOC. 22 Apr 1959: Flown to Offutt AFB, NE for display at the Strategic Air Command Museum; this was the next-to-last flight of a B-36. In 1997 it was disassembled and trucked to the new museum facility at Ashland, NE.

17 Jan '45: TOS USAAF as B-25J and assigned to the Air Technical Service Center, Brookley Field, AL. 4/45: Place in storage with several units. 10/51: Converted to TB-25J. 5/53: Upgraded TB-25L. 6/53: Converted it to TB-25M radar trainer. 4/55: Wright Air Development Center, Wright-Patterson AFB, OH; converted to ETB-25M. 3/56: Redesignated JTB-25M. 9/59: SOC and ferried to the SAC Museum, Offutt AFB, NE. By 1994: Painted it in bogus desert camouflage scheme and named "Desert Doom" with a skull and crossbones painted on the nose. 1997: Trucked to new museum facility in Ashland, NE.

17 Jan '45: TOS USAAF as B-25J and assigned to the Air Technical Service Center, Brookley Field, AL. 4/45: Place in storage with several units. 10/51: Converted to TB-25J. 5/53: Upgraded TB-25L. 6/53: Converted it to TB-25M radar trainer. 4/55: Wright Air Development Center, Wright-Patterson AFB, OH; converted to ETB-25M. 3/56: Redesignated JTB-25M. 9/59: SOC and ferried to the SAC Museum, Offutt AFB, NE. By 1994: Painted it in bogus desert camouflage scheme and named "Desert Doom" with a skull and crossbones painted on the nose. 1997: Trucked to new museum facility in Ashland, NE.

Ca. 6/44: TOS USAAF as a B-25J. Ca.7/44: Converted for crew training as an AT-25D. 1945: Redesignated TB-25J. 1952: Converted to TB-25N. By 6/52: 3567th Maintenance Squadron, 3565th Maintenance & Support Group, James Connally AFB, Waco, TX. 12/58: Davis-Monthan AFB, AZ for storage. 5/59: Registered N3441G. 1960: WFU and parked in open storage, where it remained with several owners until acquired by the Air Force Museum in 1975 and trucked to Offutt AFB, NE for display at the Strategic Air Command Museum as a sectioned aircraft. This display was moved to the new Museum in 1998.

3 Apr 1945: TOS USAAF as B-17G. Many non-bombing units operated this plane. Mar-Jun 1950: Converted to DB-17G, and later DB-17P, and operated with drone squadrons. May 1958: SOC at Patrick AFB, issued as a museum piece. May 1959: Strategic Air Command Museum, Offutt AFB, NE. 1997: Moved to new museum location in Ashland, NE. May 1999: Modified back to B-17G configuration.