Accession Number : ADA118773

Title :   USAF Bioenvironmental Noise Data Handbook. Volume 172. Hush-House Noise Suppressor (Aero Systems Engineering, Inc.) Far-Field Noise.

Descriptive Note : Technical rept.,


Personal Author(s) : Lee,Robert A ; Rau,Thomas H ; Jones,Carolyn

PDF Url : ADA118773

Report Date : Jul 1982

Pagination or Media Count : 823

Abstract : The hush-house noise suppressor was made by Aero Systems Engineering of Texas, Inc. for acoustical suppression of various AF fighter/trainer aircraft during ground runup operations. This report provides measured and extrapolated data defining the bioacoustic environments produced by several aircraft/engines operating in the hush-house suppressor for various engine power configurations. Far-field data measured at 20 locations are normalized to standard meteorological conditions and extrapolated from 75-8000 meters to derive sets of equal-value contours for seven acoustic measures as function of angle and distance from the source. Refer to Volume 1 of this handbook, 'USAF Bioenvironmental Noise Data Handbook, Vol 1: Organization, Content and Application,' AMRL-TR-75(1) 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. Data are presented for the following aircraft/engines operating in the hush-house noise suppressor: F-4, F-15, F-16, F-105, F-106, F-111F and T-38 aircraft and the TF41-A-1, J79-GE-15, F100-PW-100, J75-P19, J-75-P-17 and TF30-P-100 engines. (Author)

Descriptors :   *Handbooks, *Aircraft noise, *Noise reduction, *Bioacoustics, Noise(Sound), Aircraft engine noise, Ground level, Quiet, Sound pressure, Measurement, Aircraft engines, Power, Range(Distance), Fighter aircraft, Training aircraft, Suppressors, Environmental management, Test methods, Tables(Data)

Subject Categories : Attack and Fighter Aircraft
      Training Aircraft
      Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE