Airman 1st Class Katlynn Masnyk, 56th Logistics Readiness Squadron distribution fuels operator, pulls out a fuel hose to fuel an F-35A Lightning II Aug. 21, 2019, at Luke Air Force Base, Ariz. R-11 Refuelers are used to refuel the jets and can carry approximately 6,000 gallons of fuel. Distribution fuels operators handle jet fuel, operate large vehicles and ensure the compliance of all safety regulations while performing their job. (U.S. Air Force photo by Airman Brooke Moeder)