Workshop on rails
Tech. Sgt. Benjamin Whitfield, 92nd Air Refueling Wing historic property custodian, and Calistra Alba, 92nd ARW historian, inspect the B-52 simulator support car "DFX-7" July 10, 2017, at Fairchild Air Force Base, Washington. Utility workshop cars were attached to the simulators for maintenance support on the go. (U.S. Air Force photo / Airman 1st Class Ryan Lackey)