The Pentagon has openly funded work on unmanned combat aircraft, including Northrop Grumman’s X-47, a diamond-shaped drone that can take off and land from aircraft carriers. But aerospace watchers have long presumed that these programs are hiding even more secretive work....
The U.S. Navy said it made a breakthrough in drone technology with the first flight of the X-47B, a bat-winged unmanned jet designed to take off and land from an aircraft carrier, one of the most complex and difficult feats in aviation. The experimental aircraft, made by Northrop Grumman...
