Master Sgt. Jason Justice, 28th Aircraft Maintenance Squadron production superintendent, oversees Staff Sgt. Ryan Walker, 28th Maintenance Group quality assurance inspector, marshal a fuel truck into position for hot pit refueling during a test evaluation at Ellsworth Air Force Base, S.D., Sept. 25, 2012. Hot pit refueling is a procedure usually performed in a combat situation to rapidly refuel aircraft while their engines are running, resulting in a speedy refueling and allowing aircrews to return to the fight in a short amount of time. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)