A B-52 Stratofortress takes off from Runway 22 during a Fischer-Tropsch
test flight from Edwards Air Force Base, Calif., on Sept. 19. During
the flight, two of the aircraft's eight engines ran on the natural
gas-based Fischer-Tropsch fuel blend. The bombers are from the 5th Bomb
Wing at Minot Air Force Base, N.D. (U.S. Air Force photo/Chad Bellay)
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