A U.S. Navy X-47B Unmanned Combat Air System (UCAS) demonstrator completes its first shore-based arrested landing at Naval Air Staion, Patuxent River, Md., May 4, 2013. The UCAS used a tailhook to catch a MK-7 arresting gear to quickly stop.
Northrop Grumman
Taken on 4 May 2013
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