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Reduced Vertical Separation Practices To Be Applied to U.S. Domestic Airspace

Steve Scott

Monday, November 3rd, 2003

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Traffic alert and collision avoidance system (TCAS) technology will not be required on cruising aircraft separated vertically by 1,000 feet, according to a final rule on domestic reduced vertical separation minimum (DRVSM). Nor has the rule been issued with a complete and final safety analysis, as called for by some advocates during the period that comments were invited on the draft regulation. The Oct. 27 ruling by the Federal Aviation Administration (FAA) halves the 2,000-foot vertical separation currently applied to…

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