• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.42 no.1
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• pp.76-81
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• 2014

Military helicopter is exposed to the enemy gun firing due to the low altitude flight of contour flight, hovering & nap of the Earth flight, therefore it has the high possibility to be exploded by the gun firing. Recently the Anti-ballistic requirement is required to get the high level of safety from gun firing in required operational capability. The first military utility helicopter of SURION has the Anti-ballistic requirement and explosion proof. In order to meet the requirement, OBIGGS is adopted for the first time in KUH. It is proven that Anti-Explosion capability is satisfied to requirement for improving vent system which was insufficiently designed in development period and related to Anti-explosion.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.45 no.6
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• pp.473-480
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• 2017

Military helicopters are equipped with OBIGGS System to prevent an explosion caused by the projectile. OBIGGS warning lights up should only operate when sensing fault, but it frequently worked without malfunction in the initial production process and the design improvements were required. In this paper, the cause of OBIGGS abnormal warning lights up was reviewed, the improvements were established and proven.