U.S. Air Force Staff Sgt. Tyler Wilber, 7th Component Maintenance Squadron aerospace propulsion craftsman, monitors a jet engine while running diagnostics at Dyess Air Force Base, Texas, Feb. 26, 2018. A B-1B Lancer engine has a dry weight of 4,400 pounds with a length of 181 inches, a diameter of 55 inches and produces 17,390 pounds of thrust. (U.S. Air Force photo by Airman 1st Class Mercedes Porter)