Accession Number:

ADA053706

Title:

USAF Bioenvironmental Noise Data Handbook. Volume 76. O-2A Aircraft, Far-Field Noise,

Descriptive Note:

Corporate Author:

AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1977-02-01

Pagination or Media Count:

55.0

Abstract:

The USAF O-2A is a light cargo and forward air control aircraft powered by two IO-360-D reciprocating engines. This report provides far-field measured and extrapolated data defining both physical and psychoacoustic measures of the bioacoustic environments produced by this aircraft operating on a ground runup pad for two enginepower conditions. Far-field data measured at 18 locations are normalized to standard meteorological conditions and extrapolated from 50-8000 meters to derive sets of equal-value contours as a function of angle and distance from the source. These contours are measures of 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. Refer to Volume 1 of this handbook, USAF Bioenvironmental Noise Data Handbook, Vol 1 Organization, Content and Application, AMRL-TR-75-501 1975, for discussion of the objective and design of the handbook, the types of data presented, measurement procedures, instrumentation, data processing, definitions of quantities, symbols, equations, applications, limitations, etc. Author

Subject Categories:

  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE