Defining the Cockpit Noise Hazard, Aircrew Hearing Damage Risk and the Benefits Active Noise Reduction Headsets Can Provide

Abstract

Over the years, cockpit noise levels in military aircraft have been steadily increasing, particularly in fast jets. As the noise levels increase, greater levels of personal hearing protection are required to keep aircrew noise dose within legislative levels and speech and non-speech signal communications intelligible during front line operations. If the predictions of noise levels in the next generation of fast jets are confirmed, then even more effective mitigation techniques will be needed. This paper outlines the problem areas in the military cockpit including the contribution cockpit noise and electrical communications make to aircrew noise dose and the benefits offered by newer personal protection technologies such as Active Noise Reduction. Results of both experimental trials and in-service operational trials are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2005
Accession Number
ADA444706

Entities

People

  • S. James

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Acoustic Attenuation
  • Aircraft Equipment
  • Aircraft Noise
  • Aircrafts
  • Airframes
  • Boundary Layer
  • Ear
  • Frequency Bands
  • Hearing Protection
  • Law
  • Measurement
  • Military Aircraft
  • Noise
  • Noise Reduction
  • Personal Protective Equipment
  • Transport Aircraft
  • Turbines

Readers

  • Acoustics.
  • Aerospace Engineering
  • Systems Analysis and Design