Accession Number:

AD0711366

Title:

UNUSUAL EXTREMES AND DIURNAL CYCLES OF DESERT HEAT LOADS

Descriptive Note:

Environmental research papers

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MA

Personal Author(s):

• Gringorten, Irving I.
• Sissenwine, Norman

Report Date:

1970-06-01

Pagination or Media Count:

21.0

Abstract:

Diurnal cycles of high temperature during which equipment must operate, and long-term temperature extremes and cycles which equipment must withstand without irreversible damage, are provided for the revision of MIL-STD- 210A, Climatic Extremes for Military Equipment The high temperature during which the equipment should be operable was selected from a companion study. The still higher temperatures that the equipment must withstand on standby for periods of 2 to 25 years without irreversible damage are new. The areas studied for these extremes included Death Valley, Calif., and stations in French West Africa. The operational upper 1-percent extreme in the hottest month in the worst location is 120F the associated dirunal cycle has an amplitude of 29F. The withstanding upper 10-percent extreme is 128F for a 2-year planned life, increasing to 133F for a 25-year planned life.

Descriptors:

• *DESERT TESTS
• TEMPERATURE
• MILITARY REQUIREMENTS
• WIND
• ATMOSPHERIC TEMPERATURE
• ARMY EQUIPMENT
• SOLAR RADIATION
• HUMIDITY
• DIURNAL VARIATIONS

Subject Categories:

• Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE