Credit: This is a December 5, 1986 photo of the twin-engine, pusher-puller experimental aircraft named Voyager during a training flight before her historic first non-stop, un-refueled flight around the world. The plane took off from Edwards Air Force Base, Calif., Dec. 14, 1986 with 1,200 gallons of fuel onboard and returned to the desert base nine days later on Dec. 23 with 18 gallons to spare. (AP Photo/Douglas C. Pizac)

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