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,

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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,

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Photo credit: © 508 collection / Alamy / Afripics
License: Licensed
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