Abstract: A non-transitory computer-readable medium includes computer-executable instructions that cause one or more processing units to acquire an airport map that includes a plurality of edge data structures. Each of the edge data structures includes a plurality of waypoints and membership data that indicates a location at an airport. The instructions further cause the one or more processing units to receive a starting location and a starting heading of an aircraft at the airport, determine a destination location and a destination heading for the aircraft at the airport, and generate a taxiing path plan for the aircraft based on the airport map, the starting location, the starting heading, the destination location, and the destination heading. The taxiing path plan includes a sequence of waypoints from the edge data structures. The instructions further cause the one or more processing units to send the taxiing path plan to the aircraft.

Abstract: An aircraft includes a flight plan and contingency data including a plurality of contingency landing sites. An aircraft communication system communicates with a ground control station via a communication link and detects a lost communication scenario in response to degradation in the communication link. An aircraft flight control system controls the aircraft en route according to the flight plan. In response to detecting the lost communication scenario, the flight control system routes the aircraft back to a last known location in which the communication link was not degraded. In response to failure to re-establish the communication link, the flight control system selects a landing site based on a current aircraft location relative to a plurality of potential landing sites including an origin airport, a destination airport, and a first continency landing site. The flight control system controls the aircraft to approach and land at the selected landing site.

Abstract: An aircraft includes a flight plan and contingency data including a plurality of contingency landing sites. An aircraft communication system communicates with a ground control station via a communication link and detects a lost communication scenario in response to degradation in the communication link. An aircraft flight control system controls the aircraft en route according to the flight plan. In response to detecting the lost communication scenario, the flight control system routes the aircraft back to a last known location in which the communication link was not degraded. In response to failure to re-establish the communication link, the flight control system selects a landing site based on a current aircraft location relative to a plurality of potential landing sites including an origin airport, a destination airport, and a first continency landing site. The flight control system controls the aircraft to approach and land at the selected landing site.

Abstract: A non-transitory computer-readable medium includes computer-executable instructions that cause one or more processing units to acquire an airport map that includes a plurality of edge data structures. Each of the edge data structures includes a plurality of waypoints and membership data that indicates a location at an airport. The instructions further cause the one or more processing units to receive a starting location and a starting heading of an aircraft at the airport, determine a destination location and a destination heading for the aircraft at the airport, and generate a taxiing path plan for the aircraft based on the airport map, the starting location, the starting heading, the destination location, and the destination heading. The taxiing path plan includes a sequence of waypoints from the edge data structures. The instructions further cause the one or more processing units to send the taxiing path plan to the aircraft.

Abstract: An aircraft includes a flight plan and contingency data including a plurality of contingency landing sites. An aircraft communication system communicates with a ground control station via a communication link and detects a lost communication scenario in response to degradation in the communication link. An aircraft flight control system controls the aircraft en route according to the flight plan. In response to detecting the lost communication scenario, the flight control system routes the aircraft back to a last known location in which the communication link was not degraded. In response to failure to re-establish the communication link, the flight control system selects a landing site based on a current aircraft location relative to a plurality of potential landing sites including an origin airport, a destination airport, and a first continency landing site. The flight control system controls the aircraft to approach and land at the selected landing site.