Seyir Defense Inc. In addition to the maintenance, repair and maintenance activities of the platforms and subsystems in the Turkish Armed Forces (TAF) inventory, national engineering studies, mechanical works for the development of original systems. design in the fields of electronics, electromechanics and electrochemistry. was established in 2013 with the aim of carrying out integrated logistics support activities with production, test verification, user and maintenance training. Torpedo, guided missile, underwater, robots. Our main goal is to develop national products for underwater and surface platforms, especially sonar and fire control systems.