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...
