Helicopter Noise Definition Report UH-60A, S-76, A-109, 206-L

Abstract

This document presents noise data for the Sikorsky UH-60A Blackhawk, the Sikorsky S-76 Spirit, the Agusta A-109 and the Bell 206-L. The acoustical data are accompanied by phototheodolite tracking data, cockpit instrument panel photo data, and meteorological data acquired from radiosonde balloons. Acoustical metrics include both noise certification metrics (EPNL, PNLT, PNL) as well as community/airport noise assessment metrics (SEL, dBA). Noise data have been acquired systematically to identify variations in level with variations in helicopter airspeed and altitude. Data contained in this report provide essential information for development of helicopter noise exposure contours as well as further evaluation of ICAO helicopter noise certification standards. Accordingly, this information will be of interest to helicopter manufacturers, airport planning consultants, acoustical engineers and airport managers. This report serves as a noise definition document establishing baseline acoustical characteristics of the test helicopters.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1981
Accession Number
ADA116363

Entities

People

  • David W. Ford
  • Edward J. Rickley
  • J. Steven Newman

Organizations

  • Federal Aviation Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Atmospheric Attenuation
  • Capillary Electrophoresis
  • Flight Paths
  • Frequency
  • Ground Level
  • Ground Speed
  • Instrumentation
  • Measurement
  • Meteorological Data
  • Observation Aircraft
  • Plastic Explosives
  • Recording Systems
  • Slant Range
  • Sound Pressure
  • Tracks
  • Visual Approach Slope Indicators

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Aviation Science / Aeronautics.
  • Business Analytics