Thermal Stress Evaluation of the Mechanized Infantry Combat Vehicle (MICV-XM-723).
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1976
- Accession Number
- ADA028072
Entities
People
- Fred R. Winsmann
- Ralph F. Goldman
Organizations
- United States Army Research Institute of Environmental Medicine