Abstract: A computer-implemented method for optimizing a mission of an aircraft, the aircraft having a predefined flight plan between a starting point and an arrival point, the flight plan comprising a set of waypoints.

Abstract: A method is provided for calculating the prediction of required navigation performance for a trajectory associated with a list of segments of a flight plan. A method is also provided for displaying the navigation performance as a corridor trajectory and adapted to guarantee compliance with the navigation performance requirements while offering immediate viewing of the navigation latitude in a corridor.

Abstract: A method is provided for calculating the estimated navigation performance prediction for a trajectory associated with a list of segments of a flight plan. A method for displaying the navigation performance in a corridor trajectory so as to guarantee compliance with the navigation performance requirements while offering immediate viewing of the navigation latitude in a corridor is also provided.

Abstract: A method is provided for calculating the estimated navigation performance prediction for a trajectory associated with a list of segments of a flight plan. A method for displaying the navigation performance in a corridor trajectory so as to guarantee compliance with the navigation performance requirements while offering immediate viewing of the navigation latitude in a corridor is also provided.

Abstract: A method is provided for calculating the prediction of required navigation performance for a trajectory associated with a list of segments of a flight plan. A method is also provided for displaying the navigation performance as a corridor trajectory and adapted to guarantee compliance with the navigation performance requirements while offering immediate viewing of the navigation latitude in a corridor.

Abstract: A method of optimizing a flight plan of an aircraft used in a flight management system of an aircraft is disclosed. This method makes it possible to constrain the real cost index of the mission executed to the optimal cost index CIopt predetermined by the aircraft operator, by acting on objectives ETAopt and EFOBopt of values of ETA and of EFOB to be achieved. Objectives are linked to this optimal cost index, in order to make the system return from a cost index CIm to the optimal cost index CIopt, while taking account of various constraints imposed by the ATC or the CTFM. Both constraints mext influence the cost index and constraints which limit the field of possible solutions.

Abstract: A method for assisting an aircraft to rejoin a flight plan is disclosed. The flight plan is composed of a number N of flight segments (LEGi, i?[1, N]) with a flight segment LEGi being defined by a departure end (WPTi?1) and by an arrival end (WPTi). A navigation mode is termed “managed mode” wherein, the aircraft has momentarily left the managed mode and has deviated from the flight plan after passing through a waypoint (WPTp, p?[1, N]), the aircraft occupying a position (PPOS) and seeking to rejoin the flight plan so as to follow it in managed mode. The method comprises a step of evaluating the separation distance (Dj, i?[p+1, N]) between the position (PPOS) of the aircraft and each of the waypoints (WPTj, i?[p+1, N]). The local minima of the distance between the position (PPOS) of the aircraft and the waypoints (WPTj, i?[p+1, N]) of the flight plan is determined.

Abstract: A method for assisting an aircraft to rejoin a flight plan is disclosed. The flight plan is composed of a number N of flight segments (LEGi, i?[1, N]) with a flight segment LEGi being defined by a departure end (WPTi?1) and by an arrival end (WPTi). A navigation mode is termed “managed mode” wherein, the aircraft has momentarily left the managed mode and has deviated from the flight plan after passing through a waypoint (WPTp, p?[1, N]), the aircraft occupying a position (PPOS) and seeking to rejoin the flight plan so as to follow it in managed mode. The method comprises a step of evaluating the separation distance (Dj, i?[p+1, N]) between the position (PPOS) of the aircraft and each of the waypoints (WPTj, i?[p+1, N]). The local minima of the distance between the position (PPOS) of the aircraft and the waypoints (WPTj, i?[p+1, N]) of the flight plan is determined.

Abstract: The invention relates to a navigation aid method and device for an aircraft. The aircraft occupies a position PPOS outside its flight plan and seeks to rejoin the flight plan. The flight plan includes a succession of waypoints. A waypoint WPTi is called sequenced once the aircraft has passed by the waypoint WPTi at a lateral distance within the limits of the fixed sequencing conditions. The next unsequenced waypoint is called the active waypoint. The method includes the computation of at least one path to rejoin the flight plan from the current position PPOS, the computation of a potential active waypoint in the flight plan based on a rejoining path, the display of the potential active waypoint, if the pilot confirms the potential active waypoint, the sequencing of the waypoints situated upstream of the potential active waypoint, the said potential active waypoint becoming the new active waypoint.

Abstract: A method of optimizing a flight plan of an aircraft used in a flight management system of an aircraft is disclosed. This method makes it possible to constrain the real cost index of the mission executed to the optimal cost index CIopt predetermined by the aircraft operator, by acting on objectives ETAopt and EFOBopt of values of ETA and of EFOB to be achieved. Objectives are linked to this optimal cost index, in order to make the system return from a cost index CIm to the optimal cost index CIopt, while taking account of various constraints imposed by the ATC or the CTFM. Both constraints mext influence the cost index and constraints which limit the field of possible solutions.