The U.S. Navy has quietly added new sea trials to its X-47B demonstration, but an actual hook-up and passing of gas through an automated aerial refueling (AAR) system remains an elusive goal. Navy officials are focusing AAR flight testing on a Learjet surrogate aircraft, sparking some in industry to push for an actual contact and fuel transfer with one of the service's two Northrop Grumman X-47B demo aircraft. “The Navy has determined that demonstrating AAR technologies and ...


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