Accession Number : ADA301741

Title :   Measurement and Analysis of Bioacoustic Environments Aboard AC-119G and AC-130A Gunships.

Descriptive Note : Final rept. Sep-Nov 68,

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

Personal Author(s) : Rose, Justus F., Jr

PDF Url : ADA301741

Report Date : SEP 1969

Pagination or Media Count : 41

Abstract : Acoustic noise measurements were made at crewmember locations on board an AC-119G and AC-130A gunship. Measurements were made during taxi, takeoff, climb, and cruise power settings. In addition, measurements were taken during firing of the four 7.62 mm miniguns on the AC-119G and the four 7.62 mm miniguns and four 2Omm vulcans on the AC-130A. Measurements were at typical crewmember locations throughout each aircraft during various weapon combination firing configurations. The data are presented in data zones and each zone is shown attenuated by each of four in-service ear protection devices. Specific ear protection recommendations are made for each aircraft for both ambient and gunfiring noise environments. (AN)

Descriptors :   *ACOUSTIC MEASUREMENT, *EAR PROTECTORS, *GUNSHIPS, RISK, FLIGHT CREWS, TURBOPROP ENGINES, FIRING TESTS(ORDNANCE), HUMAN FACTORS ENGINEERING, ATTACK AIRCRAFT, TAKEOFF, ACOUSTIC ATTENUATION, EXPOSURE(PHYSIOLOGY), AMBIENT NOISE, RECIPROCATING ENGINES, ACOUSTIC DATA, SOUND PRESSURE, NOISE POLLUTION, HEARING, BIOACOUSTICS, AIRCRAFT NOISE, AIRCRAFT GUNS, AERIAL GUNNERS.

Subject Categories : Attack and Fighter Aircraft
      Acoustics
      Protective Equipment
      Noise Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE