Here are twelve KC-135 Stratotanker refueling airplanes all lined up on the runway like a dozen ducks in a row. It was part of an aerial exercise at the Kadena Air Base in Japan where the Stratotankers pumped 50 aircraft with 800,000 pounds of fuel.
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That's cool... Other "Elephant Walks", as they're called:
More KC-135 s:
C17s & KC-10s,