U.S. Air Force Staff Sgt. David Rinck, 633rd Logistics Readiness Squadron fuels distribution operator, operates an R-11 fuel truck for a “hot refuel” operation at Langley Air Force Base, Va., Dec. 13, 2013. A three-mile-long underground hydrant system allows fuel to flow directly to the flight line for an expedited operation. Rinck hails from Colora, Md. (U.S. Air Force photo by Senior Airman Teresa Aber/Released)