Helicopter Noise Exposure Curves for Use in Environmental Impact Assessment.

Abstract

This report establishes the current (1982) FAA helicopter noise data base for use in environmental impact assessment. The report sets out assumptions, methodologies, and techniques used in arriving at noise-exposure-versus-distance relationships. Noise data are provided for 15 helicopters, including five flight regimes each: takeoff, approach, level flyover, hover in-ground-effect (HIGE) and hover out-of-ground effect (HOGE). When possible, level flyover data are presented for a variety of airspeeds. Sound exposure level (SEL) is provided for all operational modes except hover. In the case of hover operations (both HOGE and HIGE), the maximum A-Weighted Sound Level (LAM) is identified as a function of distance. The report also includes a discussion of helicopter performance characteristics required for full computer modeling of helicopter/heliport noise exposure. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1982
Accession Number
ADA123467

Entities

People

  • Edward J. Rickley
  • J. Steven Newman
  • Tyrone L. Bland

Organizations

  • Federal Aviation Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircraft Noise
  • Aircrafts
  • Atmospheric Attenuation
  • Data Analysis
  • Databases
  • Environment
  • Fixed Wing Aircraft
  • Ground Effect
  • Helicopters
  • Low Angles
  • Measurement
  • Real Estate
  • Sound Pressure
  • Transport Aircraft
  • Transportation
  • Turbines

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
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