The Final Flight of Extortion 17 | Air & Space

A few minutes past 2 a.m. on August 6, 2011, at a dusty forward operating base 40 miles south of Kabul, Afghanistan, the rotors of two U.S. Army CH-47D Chinooks began to turn. Operating with no lights save for the faint green glow of night vision goggles and cockpit instrument panels, the two helicopters, call signs Extortion 17 (“one-seven”) and Extortion 16, lifted into the darkness and accelerated toward a destination less than 20 miles west.
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Source: The Final Flight of Extortion 17 | Air & Space