Hellenic Aerospace Industry (HAI) () is the leading aerospace company of Greece. The company headquarters is located in Tanagra, 65 kilometers north-west of Athens, with the industrial complex covering an area of 200,000 sq.m. The company has undertaken over the years extensive subcontracting work with major international aerospace companies such as Boeing, Airbus, Alenia, Lockheed Martin, Raytheon, EADS and others. The company has also accomplished original developments in unmanned aviation structures, military electronics, telecommunications equipment, night vision equipment, wind generators and composite material technology. Original designs include a number of Unmanned Aerial Vehicles, the Pegasus and Pegasus II UAVs, first flown in 1982 and still in service with the Hellenic Air Force. Industrial capability is organized by production centers geared to deliver high technology services and products in a wide range of activities, that include: Military aircraft and engine maintenance, repair, overhaul, modifications, upgrades and logistics support Development, design, manufacturing and after sales support of electronic, optronic and telecommunication products, satellite systems and applications, co-development and co-production of weapon systems. Aerostructures manufacturing and assembly Repair and calibration of precision measuring devices and equipment HAI's Quality System is certified by BVQI, ISO 9001:2000, ISO 9001:1994 and TickIT Guide and EN/AS 9100. The company applies Total quality management and Six Sigma (6σ) methodology. In addition, HAI has been inspected, verified and accepted by nearly every major manufacturer in the sector of Aerospace Industries. HAI has been approved and certified by the HCAA (Hellenic Civil Aviation Authority) as a repair center to provide services for Civil aircraft components and engines in compliance to JAR-145 requirements and by major engine manufacturers for the repair and overhaul of engines, such as T53 by Honeywell Aerospace, T56/501D by Rolls-Royce and ATAR K-50 by Snecma Moteurs. Furthermore, it has been approved and certified as a maintenance center for the C-130 aircraft by Lockheed Aeronautics, King Air aircraft by Raytheon and P-3 aircraft by the Hellenic Navy. History HAI was founded by the Greek State in 1975, by decision of Constantine Karamanlis' government, to undertake all aircraft-related construction activity, so that the historic KEA factory would concentrate on maintenance work. A huge factory was built in Tanagra, 65 km north of Athens eventually employing thousands. In 1979 the development of the E1-79 Pegasus, an Unmanned Aerial Vehicle (UAV), was begun in collaboration with KETA (Hellenic Air Force Research & Development Center) and its first flight was made in