USAF Bioenvironmental Noise Data Handbook. Volume 88. T-33A Aircraft, Near and Far-Field Noise.

Abstract

The USAF T-33A is a flight trainer aircraft powered by one J33-A-35 turbojet engine. This report provides measured and extrapolated data defining the bioacoustic environments produced by this aircraft operating on a concrete runup pad for three power conditions. Near-field data are reported for 4 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 level, and limiting times for total daily exposure of personnel with and without standard Air Force ear protectors. Far-field data measured at 19 locations are normalized to standard meteorological conditions and extrapolated from 75-8000 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
Apr 01, 1977
Accession Number
ADA053707

Entities

People

  • Robert G. Powell

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircrafts
  • Barometric Pressure
  • Biomedical Research
  • Data Acquisition
  • Data Processing
  • Engine Noise
  • Environment
  • Far Field
  • Ground Support Equipment
  • Measurement
  • Near Field
  • Noise
  • Sound Pressure
  • Training Aircraft
  • Turbojet Engines

Fields of Study

  • Physics

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