USAF Bioenvironmental Noise Data Handbook. Volume 165. MC-1 Heater, Duct Type, Portable.

Abstract

The MC-1 heater is a gasoline-motor driven, portable ground heater used primarily for cockpit and cabin temperature control. This report provides measured and extrapolated data defining the bioacoustic environments produced by this unit operating outdoors on a concrete apron at normal rated conditions. Near-field data are reported for 37 locations in a wide variety of physical and psychoacoustic measures: overall and band sound pressure levels, C-weighted and A-weighted sound levels, preferred speech interference level, perceived noise levels, and limiting times for total daily exposure of personnel with and without standard Air Force ear protectors. Far-field data measured at 36 locations are normalized to standard meteorological conditions and extrapolated from 10 - 1600 meters to derive sets of equal-value contours for these same seven acoustic measures as functions of angle and distance from the source.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1982
Accession Number
ADA116151

Entities

People

  • Thomas H. Rau

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Air Force
  • Air Force Facilities
  • Air Force Operations
  • Aircrafts
  • Barometric Pressure
  • Biomedical Research
  • Data Processing
  • Environment
  • Far Field
  • Ground Support
  • Ground Support Equipment
  • Measurement
  • Meteorology
  • Near Field
  • Sound Pressure
  • Temperature Control

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