Word: mph
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Dates: during 2000-2009
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...drone with a 116-foot wingspan that can fly for more than a day, scouring terrain and relaying video to a ground station 3,000 miles away. Last March a Hawk on a simulated mission surprised its manned F-16 chase plane by rolling onto its back at 400 mph, diving and smashing into the California desert. An investigation found that the plane had even prepared to die: It shut its engine down, erased classified computer data and set its flaps for a death spiral. The investigation also found that at the same time, more than 100 miles away...