While the USAF has been tacking missiles onto Predator drones for quite some time, so far a true unmanned fighter has yet to grace any carrier decks -- until now. The US Navy has started flogging an X-47B Unmanned Combat Aircraft System (UCAS) aboard the USS Truman, with a video (below the break) showing it taxiing around the flight deck. The current round of tests has focused on "handling and control characteristics," but officials have said the robotic stealth fighters could be launched from the ship's catapult "if all conditions are nominal." The X-47B has already completed some
