The Mechanical Systems Harmonization Working Group (MSHWG) was tasked by the Federal Aviation Administration (FAA) to propose a new set of standards for acceptable high-temperature environments in the cabin based on

the core temperature of the human body. To investigate the impact of this standard on the physiological indicators

and behavioral abilities of Chinese flight crews, this study simulated the high -temperature environment of the

cockpit in an artificial climate chamber and conducted a control experiment using healthy male flight trainees aged

18-25 and ordinary college students. Wireless physiological equipment was used to monitor changes in human

physiological indicators at different core temperatures of the human body and time, and a neurobehavioral evaluation system was used to assess changes in human behavioral ability indicators. The experimental results showed

that human body core temperature, skin temperature and heart rate increased with rising environment temperature,

and they are all within the physiological tolerance range of the human body. The arterial and venous oxygen saturation decreased with increasing environment temperature, but with no statistical difference. There were no significant changes in any behavioral abilities of the human body under different core temperature-times conditions, except for visual retention ability and the differences were not statistically significant. The core temperature limit values of the human body provided by MSHWG have a safe impact on the physiological load and behavioral abilities of flight crews.

high temperature environment, core temperature of the human body, pilot, physiological load, behavioral ability