DURATION AND UNUSUAL EXTREMES OF COLD

Abstract

Duration, in hours and days, of low temperature during which equipment must operate and long term durations of extreme cold which equipment should 'withstand' without irreversible damage, are provided in the revision of MIL-STD-210A, Climatic Extremes for Military Equipment. A low temperature of -60F was established (in guidance from the Joint Chief of Staff) at which equipment should still be operable. But still lower temperatures, persisting from one to several days, at which the equipment must be able to withstand on standby for periods of 2 to 25 years, had to be inferred by modelling, to supplement the evidence of several scant data sources in the remote frigid areas of the world. The operational 20 percent extreme cold, equalled or exceeded continuously for 12 hours in the cold heart of Siberia, is -60F. The withstanding 10 percent extreme is lower than -80F in 2 to 4 days' exposure for a planned life of 2 to 25 years.

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Document Details

Document Type
Technical Report
Publication Date
Jun 26, 1970
Accession Number
AD0710611

Entities

People

  • Irving I. Gringorten

Organizations

  • Air Force Cambridge Research Laboratories

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Design Criteria
  • Guidance
  • Low Temperature
  • Markov Processes
  • Massachusetts
  • Military Equipment
  • Military Operations
  • North America
  • North Dakota
  • Probability
  • Probability Distributions
  • Security
  • Standards
  • Statistics
  • United States

Readers

  • Aerospace Test and Evaluation
  • Mathematics or Statistics
  • Polar and Arctic Studies

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference