Conventional and High Frequency Hearing of Naval Aircrewmen as a Function of Noise Exposure

Abstract

Conventional and high frequency audiograms for US Navy Prop, Jet, and Rotary wing pilots were obtained and plotted as a function of amount of flight time logged. Lack of sufficient audiograms of Prop and Rotary pilots restricts discussion of the relative hazard to hearing of Prop, Rotary, and Jet flight. However, for Jet aircrewmen, losses appear to begin at the higher frequencies i. e., above 6 KHz, and erode with cumulative flight time down to the lower frequencies. Percent of persons detecting the high frequency signals is a more precise index of the progression of hearing loss than is mean hearing level, primarily because of an artifact in scoring audiograms. Data collection of aircrew candidates pre-training, during training, and post-primary hearing are concurrently being collected by US Navy Aerospace Medical Research Institute (NAMI) personnel at Pensacola NAS.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1972
Accession Number
AD0739368

Entities

People

  • John L. Fletcher

Organizations

  • University of Memphis Department of Psychology

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Aircrafts
  • Audiometry
  • Basic Training
  • Biomedical Research
  • Ear
  • Engineering
  • Flight Crews
  • Flight Training
  • Frequency
  • Hearing Loss
  • Human Factors Engineering
  • Military Research
  • Pilots
  • Psychology
  • Students
  • Training
  • United States

Readers

  • Acoustical Oceanography.
  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Environmental Impact Assessment (EIA) of Proposed Air Force Base Actions.

Technology Areas

  • Space