NOISE EXPOSURE FORECAST CONTOURS FOR AIRCRAFT NOISE TRADEOFF STUDIES AT THREE MAJOR AIRPORTS

Abstract

The relative effectiveness of three changes in aircraft operating procedures and/or aircraft hardware in reducing noise exposure around three major airports (O'Hare International Airport, Chicago, John F. Kennedy Airport, New York, and Los Angeles International Airport) were rated by determining the relative change in land areas falling within Noise Exposure Forecast (NEF) 30 and 40 contours. For projected 1975 operations, sets of NEF contours were calculated for changes which included: power cutbacks after takeoff and two segment approaches for all aircraft, and retrofit of current four-engine turbofan aircraft with either acoustically - lined nacelles or with a 'quiet' engine under development by NASA.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1970
Accession Number
AD0710525

Entities

People

  • Dwight E. Bishop
  • Richard D. Horonjeff

Organizations

  • BBN Technologies

Tags

DTIC Thesaurus Topics

  • Air
  • Aircraft Equipment
  • Aircraft Industry
  • Aircraft Noise
  • Aircrafts
  • Airframes
  • Airports
  • Altitude
  • Computations
  • Engines
  • Flight Paths
  • Human Factors Engineering
  • International Airports
  • Jet Aircraft
  • Noise Reduction
  • Supersonic Transport Aircraft
  • Transport Aircraft

Fields of Study

  • Environmental science

Readers

  • Acoustics.
  • Aerospace Engineering
  • Aviation Safety and Air Traffic Management