July 2015
The U.S. Navy’s X-47B is the first unmanned aircraft to successfully refuel midflight—a feat test pilots found more challenging than landing it on an aircraft carrier.
http://navalaviationnews.navylive.dodlive.mil/2015/07/29/x-47b-passes-unmanned-refueling-test/
Last edited by kach22i; 11-03-2016 at 10:34 AM..
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