F-35 Lightning II is refuled as chief reaches 10,000 hours
A F-35 Lightning II is refuled May 22 by Travis' KC-10 Extender during the fini flight of Col. J.C. Millard, 60th Opreations Group commander, and as Chief Master Sgt. Luis Drummond, 60th Operations Group superintendent, passed 10,000 hours as a boom operator. (U.S. Air Force Photo/2nd Lt. Jessica Clark)