Abstract
This study was performed to analyze the vulnerability of the situation in which combat system is shot by external projectile impacts. In developing combat system, it is vital to consider the survivability as well as its mission capability because it is directly connected with loss of lives. Especially, when the parts which are susceptible to fire are shot under battle situation, the system is exposed to the dangerousness and the situation when the parts such as fuel tanks are impacted by external projectile impacts can lead to flash fire as a result of the leakage of fuel. Therefore, in this study the possibility of flash fire was calculated by analyzing a variety of variables supposing that fuel tank in the combat system is shot. The aim of this study is to suggest effective methods in the basic steps when combat system is designed.