NDLI: Crew Procedures for Continuous Descent Arrivals Using Conventional Guidance

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Crew Procedures for Continuous Descent Arrivals Using Conventional Guidance

Content Provider	Semantic Scholar
Author	Oseguera-Lohr, Rosa M. Williams, David H. Lewis, Elliot T.
Copyright Year	2013
Abstract	Abstract This paper presents results from a simulation study which investigated the use of Continuous Descent Arrival (CDA) procedures for conducting a descent through a busy terminal area, using conventional transport-category automation. This research was part of the Low Noise Flight Procedures (LNFP) element within the Quiet Aircraft Technology (QAT) Project, that addressed development of flight guidance, and supporting pilot and Air Traffic Control (ATC) procedures for low noise operations. The procedures and chart were designed to be easy to understand, and to make it easy for the crew to make changes via the Flight Management Computer Control-Display Unit (FMC-CDU) to accommodate changes from ATC. The test runs were intended to represent situations typical of what exists in many of today’s terminal areas, including interruptions to the descent in the form of clearances issued by ATC. The results showed that the pilots were able to conduct the descents, even when interrupted by ATC with instructions that took the aircraft off of the programmed path, laterally, vertically or both. The uninterrupted descent resulted in the most optimal profile, which translated to the lowest perceived noise levels and lowest amount of fuel burned. These benefits were reduced as the interruptions from ATC increased, but all three CDA run types resulted in quieter and more fuel efficient runs than with current-day procedures. The workload associated with conducting the descents were rated comparable to workload with current-day procedures (non-CDA). Pilots were able to conduct the descents with a minimum amount of time allowed for studying the instructions and charts they were given.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070011635.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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