Impulse Noise Levels of the UH-60A/L Black Hawk Helicopter Cockpit Air Bag System - Enhanced Lateral Air Bags

Abstract

A Cockpit Air Bag System (CABS) is being developed for the UH-60A/L Black Hawk helicopter. Earlier aeromedical evaluations of CABS revealed a potential injury risk associated with the lateral air bag component. An enhanced lateral air bag was developed and a series of 12 deployment tests was conducted. Impulse noise levels ranged from 144.8 dB peak sound pressure level (SPL) to 162.4 dB peak SPL with B-durations up to 172.6 ms. Although each air bag deployment resulted in impulse noise levels exceeding the 140 dB peak SPL limit specified by U.S. Army guidelines, since rotary-wing aircrew and passengers are required to wear hearing protection, no increased risk to hearing is anticipated from a single deployment of the CABS enhanced lateral air bag.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2002
Accession Number
ADA405678

Entities

People

  • Elmaree Gordon
  • Frederick T. Brozoski
  • William A. Ahroon

Organizations

  • United States Army Aeromedical Research Lab

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Aircrafts
  • Army Aviation
  • Classification
  • Deployment
  • Electronic Mail
  • Flight Helmets
  • Hearing Protection
  • Helicopters
  • Impulse Noise
  • Integrated Systems
  • Noise
  • Passengers
  • Rotary Wing Aircraft
  • Security
  • Sound Pressure
  • Test And Evaluation

Readers

  • Acoustics.
  • Aerial Delivery - Logistics and Supply Chain Management.
  • Neurotrauma and Rehabilitation Medicine.