dryriver sends this news from the BBC: "Boeing has revealed that it has retrofitted retired fighter jets to turn them into drones. It said that one of the Lockheed Martin F-16s made a first flight with an empty cockpit last week. Two U.S. Air Force pilots controlled the plane from the ground as it flew from a Florida base to the Gulf of Mexico (video). Boeing suggested that the innovation could ultimately be used to help train pilots, providing an adversary they could practise firing on. The jet — which had previously sat mothballed at an Arizona site for 15 years — flew at an altitude of 40,000ft (12.2km) and a speed of Mach 1.47 (1,119mph/1,800km/h). It carried out a series of maneuvers including a barrel roll and a 'split S' — a move in which the aircraft turns upside down before making a half loop so that it flies the right-way-up in the opposite direction. This can be used in combat to evade missile lock-ons. Boeing said the unmanned F-16 was followed by two chase planes to ensure it stayed in sight, and also contained equipment that would have allowed it to self-destruct if necessary. The firm added that the flight attained 7Gs of acceleration but was capable of carrying out maneuvers at 9Gs — something that might cause physical problems for a pilot. 'It flew great, everything worked great, [it] made a beautiful landing — probably one of the best landings I've ever seen,' said Paul Cejas, the project's chief engineer."