A typical commercial aircraft trajectory consists of a series of flight segments. An aircraft switches from one segment to another when certain specified variables reach their desired values. Trajectory synthesis for air traffic control automation must be consistent with practical pilot procedures. We examine capture conditions for merging trajectory segments to model commercial aircraft descent in trajectory synthesis. These conditions translate into bounds on measurements of atmospheric wind, pressure, and temperature. They also define ranges of thrust and drag feasible for a descent trajectory. Capture conditions are derived for the Center-TRACON Automation System developed at NASA Ames Research Center for automated air traffic control. Various uses of capture conditions are discussed. A Boeing 727-200 aircraft is used to provide numerical examples of capture conditions.
Capture Conditions for Merging Trajectory Segments to Model Realistic Aircraft Descents
1996
8 pages
Report
No indication
English
Aircraft , Test Facilities & Equipment , Descent trajectories , Commercial aircraft , Descent , Numerical integration , Trajectory analysis , Capture effect , Air traffic control , Wind measurement , Atmospheric pressure , Atmospheric temperature , Boeing 727 aircraft , Mathematical models , Segments , Flight paths , Mach number , Airspeed , Altitude
Capture Conditions for Merging Trajectory Segments to Model Realistic Aircraft Descents
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