File:Northrop Grumman Bat UAV in flight in June 2014.JPG Description English: During an experimentation conducted by U.S. Fourth Fleet and Navy Warfare Development Command (NWDC), the Northrop Grumman Bat unmanned aircraft system flies over the joint high speed vessel USNS Spearhead (JHSV-1) during its maiden flight off of a U.S. Navy vessel in the Straits of Florida.
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