Crown Prince Sultan bin Abdulaziz, Deputy Premier, Minister of Defense and Aviation and Inspector General, who is also the Chairman of the Board of Directors of the General Authority of Civil Aviation (GACA), has recently signed a contract with Thales International Saudi Arabia on technical training development of the Civil Aviation Academy, an affiliate to GACA. The four-year contract value is SR 150,856,600 which includes training workers in the fields of air navigation, maintenance of machinery and navigational equipment.