The U.S. Army is testing an unmanned version of its famous Black Hawk helicopter. The pilotless, 5-ton drone could one day be used to deliver cargo and supplies to troops autonomously.
The so-called Optionally Piloted Black Hawk (OPBH) Demonstrator, built by defense contractor Sikorsky Aircraft Corp., completed its first test flight on March 11. Ground controllers demonstrated crucial flight operations, and engineers tested the aircraft's ability to hover over ground autonomously.
to read more: livescience.com
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