U.S. Air Force Senior Airman Michael Rogers, 388th Aircraft Maintenance Squadron avionics technician, and U.S. Air Force Senior Airman Christian Cook, 366th Logistics Readiness Squadron fuels operator, performs a hot-pits refueling with a hose cart from the 1970s on an F-35 Lightning II from Hill Air Force Base, Utah, June 20, 2019, at Mountain Home Air Force Base, Idaho. A hot-pit allows aircraft to refuel without turning the engine off and quickly return to the air. The traditional refueling process can take more than an hour before the aircraft can take off, while a hot-pit takes 13 minutes. (U.S. Air Force photo by Airman First Class Andrew Kobialka)