predator

While most research directed at improving UAVs focuses on upgrading their weapons or sensor packages, the Naval Research Laboratory is also working to ensure that the next generation of killer drones are as fuel-efficient as they are deadly. And a recent test of their hydrogen-fuel-cell-powered Ion Tiger UAV proves how successful they have been: it staid aloft for just shy of 24 hours on a single fuel load.

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A high demand for Predators and Reapers on the front lines has led the U.S. Air Force to take an unusual step: asking human pilots to mimic the drones for training purposes back in the States.

Cessna 182 aircraft have become converted "Surrogate Predators" with the installation of a "Predator ball" that typically serves as the surveillance and tracking eyes for drone operators. Such Predator balls give the manned Cessnas the ability to lock onto targets and track them.

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A drone pilot's nightmare came true when operators lost control of an armed MQ-9 Reaper flying a combat mission over Afghanistan on Sunday. That led a manned U.S. aircraft to shoot down the unresponsive drone before it flew beyond the edge of Afghanistan airspace.

The U.S. Air Force stated that a manned aircraft took "proactive measures" to shoot down the Reaper, which ended up crashing into the side of a mountain. Reaper drones have typically engaged in hunter-killer missions over Iraq, Afghanistan and Pakistan by targeting enemies on the ground with Hellfire missiles.

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