Accession Number:

ADA028072

Title:

Thermal Stress Evaluation of the Mechanized Infantry Combat Vehicle (MICV-XM-723).

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MASS

Personal Author(s):

Report Date:

1976-05-01

Pagination or Media Count:

24.0

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

Subject Categories:

  • Stress Physiology
  • Combat Vehicles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE