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New Sea Drone Set for Ocean Trials

It’s almost 40 meters long and can prowl the world’s ocean for months at a time--all by itself without a human on board. The drone, which is officially called an Anti-Submarine Warfare Continuous Trail Unmanned Vessel, or ACTUV, is the largest unmanned surface vehicle ever built. Starting this April, the drone, which was developed by the Defense Advanced Research Projects Agency (DARPA), will begin an 18-month period of sea trials to see how it performs in real-world...

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