Chemical Defense, Environmental Control Systems Study

A test and analysis program was conducted to establish cockpit agent concentration histories when air from an airfield contaminated with persistent Chemical Warfare (CW) agents enters aircraft cockpits through the engine and ECS. The program, which utilized a CW agent simulant, consisted of aircraft field tests with F-4 and F-111 aircraft, laboratory tests using ECS and cockpit simulators, and development of a computer program to predict cockpit agent concentrations of aircraft operating in CW environments. The results demonstrated that cockpit contamination will occur for all conditions evaluated. However, filters can effectively be used to counteract the agent.