B-52 flight uses synthetic fuel in all eight engines
A B-52 Stratofortress takes off from Edwards Air Force Base, Calif., Dec. 15 during a flight-test mission using a blend of synthetic fuel and JP-8 in all eight engines. This is the first time a B-52 has flown using a synfuel-blend as the only fuel on board. In September, the Air Force successfully flew a B-52 with two-engines using the synfuel-blend while the others used standard fuel. The B-52 test flights at Edwards are the initial steps in the Air Force process to test and certify a synthetic blend of fuel for its aviation fleet. (U.S. Air Force photo/Tech. Sgt. Eric M. Grill)