The Predator Medium Altitude Endurance (MAE) Unmanned Aerial Vehicle (UAV) was developed as an Advanced Concept Technology Demonstration (ACTD) from January 1994 to June 1996. The Predator system is composed of three parts: the air vehicle [a derivative of the Gnat 750] with its associated sensors and communications equipment, the ground control station (GCS), and the product or data dissemination system. One Predator system has four air vehicles with sensors and data links, one Ground Control Station (GCS), and one Trojan Spirit II SATCOM system.