NDLI: Noise reductions achieved on a 720-023b aircraft using a two-segment approach

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Noise reductions achieved on a 720-023b aircraft using a two-segment approach

Content Provider	NASA Technical Reports Server (NTRS)
Author	Glass, R. E.
Copyright Year	1971
Description	A flight investigation to determine the operational feasibility of two-segment approaches as a means for reducing airport community noise has been conducted. The effective perceived noise level (EPNL) associated with these approach profiles, using a 720-023B jet aircraft, has been obtained. The tests were designed to determine an operationally optimum approach profile and to quantify the reduction in noise level at predetermined locations on the ground beneath the flight track. The acoustic aspects of the test program are examined. An analysis of the optimum and reference profiles was made using a group of pilots. Information was also obtained on the types of pilot operational procedures used for the optimum profile.
File Size	2030790
Page Count	86
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19720010351
Archival Resource Key	ark:/13960/t96736q31
Language	English
Publisher Date	1971-12-01
Access Restriction	Open
Subject Keyword	Aircraft Flight Tests Acoustic Measurement Airline Operations Noise Reduction Aircraft Noise Noise Intensity Jet Aircraft Airports Air Traffic Control Approach Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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