NOISE EXPOSURE FORECAST CONTOUR INTERPRETATIONS OF AIRCRAFT NOISE TRADEOFF STUDIES

Abstract

The effectiveness of changes in aircraft operating procedures and aircraft hardware regarding the reduction noise near airports were rated by determining the changes in land areas falling within the Noise Exposure Forecast contours. Sets of NEF contours were constructed for two different aircraft types operating from a single runway airport; the number of operations per day was varied from 200 to 1000. The changes included power cutbacks after takeoff, two segment approaches and retrofit of four-engine turbofan aircraft with acoustically-lined nacelles or with a 'quiet engine'.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1969
Accession Number
AD0695507

Entities

People

  • Dwight E. Bishop
  • Richard D. Horonjeff

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircraft Noise
  • Aircrafts
  • Airports
  • Classification
  • Contracts
  • Digital Computers
  • Engines
  • Equations
  • Flight Paths
  • Glide Slope
  • International Airports
  • Jet Aircraft
  • Noise
  • Noise Reduction
  • Personality
  • Standards
  • Turbofan Engines

Readers

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