Lockheed Martin’s secretive Skunk Works unit–which previously developed U-2 spy plane, the SR-71 supersonic spy plane and the radar-evading F-117 stealth fighter–has big plans for its latest project: drones.

Among the concepts under development, according to the Wall Street Journal: ‘One drone would be launched from, and retrieved by, submarines; another would fly at nine times the speed of sound. A third, which is off the drawing board but not quite airborne, has wings designed to fold in flight so that it could rapidly turn from slow-speed spy plane to quick-strike bomber.’

Source: Slashdot