Abstract: A method and device for automatically comparing two flight trajectories for an aircraft includes a central processing unit having a first comparison element for automatically comparing lateral trajectories of the two flight trajectories, and a second comparison element for automatically comparing vertical trajectories of these two flight trajectories, these comparisons being carried out successively leg by leg of the flights, these comparisons being carried out as long as the respective successive legs are identical and at least for a predefined distance in the horizontal plane.

Abstract: The guidance device of the aircraft includes a unit for constructing a flight trajectory of the aircraft, which adapts the height of the flight trajectory to a downstream relief so as to allow the aircraft to clear this downstream relief by implementing a rectilinear climb at maximum rate of climb of the aircraft, along a rectilinear lateral direction corresponding to the direction of the aircraft at the moment of the triggering of the maneuver.

Abstract: A method and assembly for guidance of an aircraft during a low-altitude flight. The guidance assembly comprises a memory forming part of a flight management system, which is configured to store an active flight trajectory and any new flight trajectory, generated by the flight management system, and a memory forming part of a guidance system, which is configured to also store the flight trajectory and any new flight trajectory, which are received from the flight management system, the guidance assembly being configured to periodically transmit from the guidance system to the flight management system identification codes for the flight trajectories recorded in the memory of the guidance system.

Abstract: Method and device for aiding the guidance of an aircraft having to comply with at least one time constraint. The device can determine and present on a screen of the flight deck an offset in distance (?D) between the aircraft (AC) and a reference aircraft (Aref) which is defined to fly along the flight plan (TV) at an optimal speed to comply with the time constraint.

Abstract: A method and device are disclosed for automatically managing a flight path change on an aircraft, in particular for a low-level flight. The method determines a first deviation between the current position and a current path of the aircraft and a second deviation between this current position and a new path of the aircraft and changes the flight path by replacing the current path by the new path, if at least the absolute value of the difference between this first deviation and this second deviation is less than or equal to a maximal allowed distance during at least a predefined time period.

Abstract: A calculation unit configured to define a safety corridor, whose width is increased compared with a nominal width, at least by one width of an escape trajectory with a spiral climb of the aircraft, wherein the safety corridor that is thus defined by the calculation unit is used by a construction unit for forming a flight trajectory for a low level flight of an aircraft.

Abstract: A system for automatically modifying a lateral flight plan of an aircraft includes modifying means adapted to modify the flight plan by an action to chosen among the following actions: deleting, adding and moving at least one waypoint of an initial flight plan (T1). The modified flight plan (T3) includes one downstream waypoint (P6) defined as the waypoint on which the aircraft gets back to the initial flight plan (T1), and one upstream waypoint (P4) preceding the downstream waypoint (P6). By defining an intermediate point (P5?) between the upstream (P4) and downstream (P6) waypoints, the coordinates are calculated in order to allow the aircraft to reach the downstream waypoint (P6) with the same course as the initial flight plan (T1).

Abstract: A method and device for automatically comparing two flight trajectories for an aircraft includes a central processing unit having a first comparison element for automatically comparing lateral trajectories of the two flight trajectories, and a second comparison element for automatically comparing vertical trajectories of these two flight trajectories, these comparisons being carried out successively leg by leg of the flights, these comparisons being carried out as long as the respective successive legs are identical and at least for a predefined distance in the horizontal plane.

Abstract: A method and assembly for guidance of an aircraft during a low-altitude flight. The guidance assembly comprises a memory forming part of a flight management system, which is configured to store an active flight trajectory and any new flight trajectory, generated by the flight management system, and a memory forming part of a guidance system, which is configured to also store the flight trajectory and any new flight trajectory, which are received from the flight management system, the guidance assembly being configured to periodically transmit from the guidance system to the flight management system identification codes for the flight trajectories recorded in the memory of the guidance system.

Abstract: A method and device are disclosed for automatically managing a flight path change on an aircraft, in particular for a low-level flight. The method determines a first deviation between the current position and a current path of the aircraft and a second deviation between this current position and a new path of the aircraft and changes the flight path by replacing the current path by the new path, if at least the absolute value of the difference between this first deviation and this second deviation is less than or equal to a maximal allowed distance during at least a predefined time period.

Abstract: A method and device for displaying the performance of an aircraft when climbing and/or descending. The device includes devices for data capture, calculation and generating images for a display screen. The calculation device is configured to calculate a maximum slope that the aircraft can adopt depending on current data received from a data capture device. A display device presents images of the maximum slope superimposed with altitudes of a projected flight plan.

Abstract: A system for automatically modifying a lateral flight plan of an aircraft includes modifying means adapted to modify the flight plan by an action to chosen among the following actions: deleting, adding and moving at least one waypoint of an initial flight plan (T1). The modified flight plan (T3) includes one downstream waypoint (P6) defined as the waypoint on which the aircraft gets back to the initial flight plan (T1), and one upstream waypoint (P4) preceding the downstream waypoint (P6). By defining an intermediate point (P5?) between the upstream (P4) and downstream (P6) waypoints, the coordinates are calculated in order to allow the aircraft to reach the downstream waypoint (P6) with the same course as the initial flight plan (T1).

Abstract: The guidance device of the aircraft includes a unit for constructing a flight trajectory of the aircraft, which adapts the height of the flight trajectory to a downstream relief so as to allow the aircraft to clear this downstream relief by implementing a rectilinear climb at maximum rate of climb of the aircraft, along a rectilinear lateral direction corresponding to the direction of the aircraft at the moment of the triggering of the maneuver.

Abstract: A calculation unit configured to define a safety corridor, whose width is increased compared with a nominal width, at least by one width of an escape trajectory with a spiral climb of the aircraft, wherein the safety corridor that is thus defined by the calculation unit is used by a construction unit for forming a flight trajectory for a low level flight of an aircraft.

Abstract: The display device (1) comprises data capture means (2), calculation means (3) and a display screen (4), said calculation means (3) being configured to calculate at least one maximum slope that the aircraft can adopt depending on the data received from the data capture means (2), said device (1) also being configured to display said calculated maximum slope on at least a portion (5) of the display screen (4), which is configured to display a vertical flight plan.

Abstract: Method and device for aiding the guidance of an aircraft having to comply with at least one time constraint. The device can determine and present on a screen of the flight deck an offset in distance (?D) between the aircraft (AC) and a reference aircraft (Aref) which is defined to fly along the flight plan (TV) at an optimal speed to comply with the time constraint.

Abstract: The invention relates to a method for checking the formation of ice on an aircraft in flight, characterized in that the method comprises: the estimation (S4) in real time of a quantity of ice (SWC) forming on at least one zone of the aircraft according to flight conditions and the comparison (S5) between the estimated quantity of ice (SWC) and a predetermined quantity of ice (SWCmax; SWCTHR).

Abstract: The invention relates to a method for checking the formation of ice on an aircraft in flight, characterized in that the method comprises: the estimation (S4) in real time of a quantity of ice (SWC) forming on at least one zone of the aircraft according to flight conditions and the comparison (S5) between the estimated quantity of ice (SWC) and a predetermined quantity of ice (SWCmax; SWCTHR).