The security gate inspections has also forced the sky warrior to add mental endurance to his or her skill set.

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It's deploying another General Atomics plane known as the Sky Warrior, which takes a greater degree of the plane's control out of the hands of humans.

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The Sky Warrior's automatic takeoff and landing system can put a plane on a runway "plus or minus one foot, " says one Department of Defense official who asked not to be named.

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