The MQ/RQ-1 Predator is a UAV or Unmanned Air Vehicle manufactured by General Atomics Aeronautical Systems Incorporated. The RQ-1 is designed as an airborne surveillance and reconnaissance drone. Powered by a Rotax 914 four cylinder engine providing 101 horsepower the RQ-1 has a top speed of 135 mph and a range of 454 miles. Some RQ-1's were armed with Hellfire missiles, and were first used in action in 2002. This led to the MQ-1 which is a multi-role variant entering service in 2005. The RQ-1 and MQ-1 currently equip the 11th and 15 Reconnaisance Squadrons of the USAF. These drones have been used successfully in Bosnia, Yemen, Afghanistan and Iraq.