The X-47B Unmanned Combat Air System for the Navy made by Northrop Grumman The X-47B is to operated from the flight decks of US Navy aircraft carriers, able to carry out entire missions including air-to-air refuelling without any pilot input what so ever. And with its robot brain its able to conduct a mission using live weapons without needing to communicate with other pilots or supervisors from its aircraft carrier. The X-47B also has a much longer range than a normal carrier jet and uses Stealth technology.

The X-47B Unmanned Combat Air System is no doubt the best UAV made in 2008 and should prove to be a very worthy asset to the United States Navy.