CAA Paper 78006: The Noise Benefits Associated with Use of Continuous Descent Approach and Low Power / Low Drag Approach Procedures at Heathrow Airport
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Reference:CAA Paper 78006
Title:The Noise Benefits Associated with Use of Continuous Descent Approach and Low Power / Low Drag Approach Procedures at Heathrow Airport
Description:The Directorate of Operational Research and Analysis (DORA) measured the approach noise levels and observed the aircraft configurations and flight paths of some 700 westerly approaches during two periods in 1976 and 1977. From these data the average reductions in peak noise level resulting from use of the Low Power/Low Drag (LP/LD) and continuous descent approach (CDA) procedures have been estimated and the areas over which the reduction apply, inferred.
From the reductions in noise level and the observed numbers of approaches implementing the procedures a tentative estimate of the reduction in Noise and Number Index (NNI) in areas under westerly approaches, resulting from use of the procedures, has been made.
Status:Current
Review Comment:None
Version:1
Date:April 1978
Title:The Noise Benefits Associated with Use of Continuous Descent Approach and Low Power / Low Drag Approach Procedures at Heathrow Airport
Description:The Directorate of Operational Research and Analysis (DORA) measured the approach noise levels and observed the aircraft configurations and flight paths of some 700 westerly approaches during two periods in 1976 and 1977. From these data the average reductions in peak noise level resulting from use of the Low Power/Low Drag (LP/LD) and continuous descent approach (CDA) procedures have been estimated and the areas over which the reduction apply, inferred.
From the reductions in noise level and the observed numbers of approaches implementing the procedures a tentative estimate of the reduction in Noise and Number Index (NNI) in areas under westerly approaches, resulting from use of the procedures, has been made.
Status:Current
Review Comment:None
Version:1
Date:April 1978
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