Effects of SST Takeoff Procedures on Noise Exposure, and Review of EPNL Variations with Distance.

Abstract

The report summarizes the results of a study of noise exposure from supersonic transport (SST) operations and the estimation of changes in SST noise levels with distance, from currently available data. The report is presented in two parts. Part I describes a study of the effects of SST takeoff operational procedures on aircraft noise exposure for a simplified airport situation. Factors considered include aircraft mix, takeoff climb profiles and aircraft noise levels. Part II discusses methods of estimating variations of effective perceived noise level (EPNL) with slant distance for SST aircraft. Emphasis is placed on estimating these noise levels at large distances between the aircraft and the observer. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1971
Accession Number
AD0722366

Entities

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Phenomena
  • Aircraft Noise
  • Aircrafts
  • Noise
  • Noise (Sound)
  • Observers
  • Sound
  • Supersonic Transport Aircraft
  • Transport Ships
  • Vehicles

Readers

  • Acoustics.
  • Aerospace Engineering
  • Business Analytics

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow