Accession Number : ADA116151

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

Descriptive Note : Technical rept.,

Corporate Author : AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Rau,Thomas H

PDF Url : ADA116151

Report Date : Jun 1982

Pagination or Media Count : 53

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.

Descriptors :   *Handbooks, *Noise(Sound), *Heaters, *Bioacoustics, Ground support equipment, Aircraft maintenance, Cockpits, Psychoacoustics, Sound pressure, Level(Quantity), Measurement, Exposure(Physiology), Speech, Interference, Far field, Near field, Tables(Data), Ear protectors, Ground crews

Subject Categories : Aircraft
      Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE