The Localization Development for Korean Utility Helicopter's On-Board Inert Gas Generation System

한국형 기동헬기 불활성가스발생장치 국산화 개발

  • Received : 2017.05.19
  • Accepted : 2017.07.07
  • Published : 2017.07.31


Military rotary aircraft are heavily exposed to projectile environments due to their mission characteristics, and fires caused by fuel leaks after shooting are linked directly to the loss of human life. To improve the survivability of pilots and crews, the fuel tank in rotary aircraft must have gunfire resistance and anti-explosion characteristics. Gunfire resistance can be satisfied by applying a self-sealing cell to a fuel tank. Anti-explosion can be satisfied by reducing the oxygen concentration in an explosive area and suppressing the generation of combustible fuel vapor by minimizing the evaporation rate of the fuel by heat. A Korean utility helicopter applies anon-board inert gas generation system to meet the anti-explosion requirements for ballistic impact. The generator fills the fuel tank with an inert gas and reduces the oxygen concentration. This paper describes the overall development process of the OBIGGS developed in accordance with the localization process of weapon components. OBIGGS was developed/manufactured through domestic technology, and the performance was found to be equal to or better than that of the existing products through single performance tests and aircraft mounting tests.


Anti-Explosion;Korean Utility Helicopter;Localization Development;Nitrogen Enriched Air(NEA);On-Board Inert Gas Generation System(OBIGGS)


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