Most fighter aircraft converted to drones

Since 1991, Phantom Jets (MacDonnell-Douglas F4 Phantom II) have served as unpiloted flying targets for missile and gun tests conducted near Tyndall Air Force Base in Florida, USA, and Holloman Air Force Base in New Mexico, USA. The QF-4, as it is designated, is converted for drone operation by BAE Systems in Mojave, California, USA. On 19 November 2013, BAE Systems delivered the last QF-4 aerial target to the Air Force. This plane had been in storage for over 20 years before being converted. Over 16 years, BAE had converted 314 F-4 and RF-4 Phantom IIs into QF-4s and QRF-4s, with each aircraft taking six months to adapt. In 2015, early versions of the F-16 Fighting Falcon aircraft will be converted to drones to take over from the venerable QF-4.