Crew heat stress inside the Mechanized Infantry Combat Vehicle (MICV-XM-723) was evaluated on seven subjects during operations in a summer desert environment. The projected buidup of internal humidity with occupant sweat did not reach the levels which would lead to heat intolerance within two to three hours. Although with a full crew (i.e. 11 instead of 7 subjects), the internal humidity buildup might have been a bit higher, in essence, it would appear that subjects inside the vehicle will be at less thermal risk from heat stress than they would outside the vehicle, as long as the ventilation system is running and the vehicle is not overpressurized or tightly sealed against toxic agents. The observed WBGT levels, while quite stressful for active subjects unacclimatized to heat, would be reasonably well tolerated by well acclimatized subjects at the maximum levels of activity that could probably be attained while firing from within the vehicle. (Author)
Thermal Stress Evaluation of the Mechanized Infantry Combat Vehicle (MICV-XM-723)
1976
24 pages
Report
Keine Angabe
Englisch
Stress Physiology , Human Factors Engineering , Combat Vehicles , Heat stress(Physiology) , Combat vehicles , Human factors engineering , Desert tests , Tank crews , Humidity , Confinement(General) , Ventilation , Temperature , Heart rate , Computerized simulation , Rectum , Predictions , Armored personnel carriers , Mechanized infantry combat vehicle , Comfort
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