Baseline Noise Measurements of the OH-58A Helicopter.

Abstract

Sound measurements were taken in the OH-58A (Kiowa) Helicopter under conditions of maximum performance take off and climb, normal cruise, descent and hover both with and without soundproofing installed. Measurements were taken of the noise produced by firing the XM27E1 minigun system. Intelligibility tests of the intercom system and one radio receiver were carried out. Results are presented and compared to Human Engineering Laboratories Standard S-1-63B. Hearing hazard presented by weapon firing is discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1971
Accession Number
AD0731467

Entities

People

  • Donald L. Lince

Organizations

  • Human Engineering Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Insulation
  • Engineering
  • Helicopters
  • Human Factors Engineering
  • Intelligibility
  • Intercommunication Systems
  • Interdisciplinary Science
  • Measurement
  • Radio Receivers
  • Standards
  • Systems Engineering
  • Systems Science

Readers

  • Aerospace Engineering
  • Speech Processing/Speech Recognition.
  • ballistics.