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Paper 64 -- Controlled Time of Arrival Flight Trials Results and Analysis

The CASSIS project has been tasked with developing a Concept of Operations for use of Time-of-Arrival Control in the terminal area. Reducing or replacing low level vectors and holding with enroute delay through the use of time constraints is a key component in both NextGen and SESAR. A set of revenue service flights using airborne time control to the Initial Approach Fix and the runway threshold was conducted in September 2008 as part of the CASSIS project. These flight trials facilitated an examination of the factors affecting time control behavior and the potential for use of airborne time control in the terminal area in near- and mid-term time frames. The impact of airborne control to a single time constraint on separation between aircraft is also examined. This analysis shows that the use of current generation avionics to meet a time constraint at a point in the approach is possible with accuracies of less than 5 seconds, and can achieve 2 minute landing spacing at the runway threshold with no loss of intermediate separations. Recommendations for future developments and considerations for larger scale implementation are also discussed.
Theme: Continuous Descent Approaches
Keywords: 4D Trajectory, Controlled Time of Arrival, Trajectory Based Operations, controller workload
Posted by: Joel Klooster / Other authors: Patrick Manzi, Ana Del-Amo
Note: Unset Received On Jan 23, 2009

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