Secretary of the Air Force Michael W. Wynne and Maj. Gen. Curtis Bedke, Air Force Flight Test Center commander, walk to a ceremony at Edwards Air Force Base, Calif., Aug. 8. During the ceremony, Secretary Wynne certified Fischer-Tropsch synthetic fuel blends for use in the B-52H Stratofortress. Following Secretary Wynne and General Bedke are Jerold Smith (center), chief engineer with the 327th Aircraft Sustainment Group at Tinker AFB, Okla.; Timothy Dues (second from right), deputy director for Maintenance, Logistics Directorate, Wright-Patterson AFB, Ohio; and Col. Michael Hirka (far right), 327th ASG commander. (U.S. Air Force photo/Jet Fabara)