Enhanced Modeling of Aircraft Taxiway Noise, Volume 1: Scoping (2009) / Chapter Skim
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Pages 133-142
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E-1 Appendix E Algori thms Employed in the Processing of the European FDR Data A query-based analysis was developed by Wyle and executed by Volpe on a dataset containing detailed flight data recorder data from 2359 commercial flight operations (aircraft startup to shut down)
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E-2 / operating state parameters were reported as non-zero) were not included in the taxi segment.
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E-3 The macro processes each input file, one at a time. It first opens the input file, forcing it to a specific .CSV format, saves it in that format, and then reads the entire input file into memory, storing it in an array.
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E-4 results included bias in the FDR data, clear indications of stationary aircraft (evidenced by zero ground speed) yet with non-zero accelerations in both the lateral and longitudinal directions, as well as some instances where the acceleration data just did not make sense.
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E-5 E.4 . Thrust dur ing Accelerat ion a f ter a Hold Event A hold was defined as any period during which the aircraft speed (as reported by the ground speed indicator in the FDR data)
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E-6 Acceleration Events following a Hold - All Aircraft, Departures Maximum thrust (%) as a function of Acceleration Time (sec)
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E-7 Acceleration Event following a Hold - A319 Maximum thrust (%) as a function of Acceleration Time (sec)
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E-8 Acceleration Event following a Hold - A321 Maximum thrust (%) as a function of Acceleration Time (sec)
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E-9 Acceleration Event following a Hold - A340 Maximum thrust (%) as a function of Acceleration Time (sec)
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E-10 Acceleration Events following a Hold - B767 Maximum thrust (%) as a function of Acceleration Time (sec)
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