Abstract: A piloting assistance system for an aircraft includes a measuring module for measuring a vertical manoeuvre of the aircraft, a computational module for computing a first load factor from the measured vertical manoeuvre and from a setpoint vertical manoeuvre, a measuring module for measuring an inclination angle, a pitch rate and a pitch acceleration, a protection module including a computational submodule configured to compute a second load factor and a comparison submodule in order to compare the first and the second load factor in order to determine an applicable load factor equal to the minimum between the first and the second load factor, a computational module configured to compute elevator control from the applicable load factor and a sending module configured to send the elevator control to the automatic pilot.

Abstract: A piloting aid system for ensuring the availability an automatic pilot corresponding to an automatic piloting system and/or a flight director and/or a thrust regulation device to be controlled as a function of a speed information item determined from a source of information, and configured to operate according to a first current guidance mode and an approach capability that are part of a first set of guidance modes and approach capabilities. The system includes a surveillance module to be able to detect the loss of sources of information, a module for determining a second set of guidance modes and of approach capabilities as a function of the source or sources of information whose loss was detected by the surveillance module, a module for use, by the automatic pilot and/or the thrust regulation device, of a second current guidance mode and an approach capability that are part of the second set.

Abstract: A piloting assistance system for an aircraft includes a measuring module for measuring a vertical manoeuvre of the aircraft, a computational module for computing a first load factor from the measured vertical manoeuvre and from a setpoint vertical manoeuvre, a measuring module for measuring an inclination angle, a pitch rate and a pitch acceleration, a protection module including a computational submodule configured to compute a second load factor and a comparison submodule in order to compare the first and the second load factor in order to determine an applicable load factor equal to the minimum between the first and the second load factor, a computational module configured to compute elevator control from the applicable load factor and a sending module configured to send the elevator control to the automatic pilot.

Abstract: A method and a system for controlling an emergency descent of an aircraft. The system (1) includes a unit (2) for detecting an emergency situation, a unit (11) for calculating a usual emergency descent command, a unit (12) for calculating a limited emergency descent command, a selection unit (14) configured for selecting the usual emergency descent command or, if application conditions are met and if the limited descent command is less than said usual emergency descent command and greater than a regulation emergency descent command, selecting the limited emergency descent command, and a unit (4) for application, to the aircraft, of the selected emergency descent command.

Abstract: An activation device comprising a computation unit configured to compute a stall margin of the aircraft, an information reception unit configured to receive information indicating if an automatic angle-of-attack protection system of the aircraft is active or inactive, and an activation unit configured to activate the display of the stall margin indicator only if the automatic angle-of-attack protection system is inactive.

Abstract: A device for automatically engaging an automated emergency descent of an aircraft. The device comprises a monitoring unit configured to automatically compare, repetitively, a current cabin altitude of the aircraft to an engagement threshold representing an altitude value, an activation unit configured to automatically engage the automated emergency descent when the current cabin altitude reaches the engagement threshold called main engagement threshold, and a unit for generating at least one engagement threshold configured at least to adapt the main engagement threshold according to the terrain, the main engagement threshold corresponding to the sum of a terrain altitude and a predetermined margin.

Abstract: An activation device comprising a computation unit configured to compute a stall margin of the aircraft, an information reception unit configured to receive information indicating if an automatic angle-of-attack protection system of the aircraft is active or inactive, and an activation unit configured to activate the display of the stall margin indicator only if the automatic angle-of-attack protection system is inactive.

Abstract: A method and a system for controlling an emergency descent of an aircraft. The system (1) includes a unit (2) for detecting an emergency situation, a unit (11) for calculating a usual emergency descent command, a unit (12) for calculating a limited emergency descent command, a selection unit (14) configured for selecting the usual emergency descent command or, if application conditions are met and if the limited descent command is less than said usual emergency descent command and greater than a regulation emergency descent command, selecting the limited emergency descent command, and a unit (4) for application, to the aircraft, of the selected emergency descent command.

Abstract: A device for automatically engaging an automated emergency descent of an aircraft. The device comprises a monitoring unit configured to automatically compare, repetitively, a current cabin altitude of the aircraft to an engagement threshold representing an altitude value, an activation unit configured to automatically engage the automated emergency descent when the current cabin altitude reaches the engagement threshold called main engagement threshold, and a unit for generating at least one engagement threshold configured at least to adapt the main engagement threshold according to the terrain, the main engagement threshold corresponding to the sum of a terrain altitude and a predetermined margin.

Abstract: The device aids the management of air operations, such as operations under Required Navigation Performance with Authorization Required maneuvers. The device includes a guidance system including a plurality of stages for calculating parameters, each of the stages including an architecture having at least three pieces of equipment, which calculate the parameters and implement monitorings to determine the status of the equipment. The device uses these monitored statuses to determine a global status that indicates if the aircraft is able to carry out the air operations with required performance.

Abstract: A monitoring device for automatically monitoring the ability of an aircraft to follow a flight trajectory with at least one turn includes a series of elements that estimate the ability of the aircraft to follow at least one turn of the flight trajectory. For example, a turn radius and limit speed for each of the upcoming turns in a flight plan (or a partial portion of the upcoming turns) are analyzed by comparing to a current speed of the aircraft to determine if there will be any risk of excursion outside the flight plan path, such that warnings can be emitted to a crew of the aircraft to take corrective action before the turns are performed. Consequently, required navigational performance maneuvers can be assured before the beginning of the turns in the flight plan.

Abstract: A device for verifying guidance orders includes a passivation device for implementing comparisons between guidance orders from at least three different equipments in order to generate a passivated guidance order. For example, one of the guidance orders may be an auxiliary guidance order used to compare to the other two primary guidance orders so that the primary guidance order that is closest to the auxiliary guidance order is selected as the passivated guidance order. The passivated (e.g., validated) guidance order is transmitted to a flight control system of the aircraft.

Abstract: A monitoring device includes one or more devices for implementing monitoring, in order to check whether two flight management systems are able to operate in dual mode during operations requiring navigation and guidance performance. For example, a change condition verification device may be included in a second or slave flight management system so that sequencing requests and resynchronization requests received from a first or master flight management system are verified for accuracy before implementation. The verification may include comparison of positional data used by the first and second flight management systems or a comparison of a resynchronized flight plan to information from a navigation data database.

Abstract: A monitoring device automatically monitors lateral guidance orders of an aircraft. The device includes a failure monitoring device for implementing comparisons between roll control orders generated by a number of equipments in order to be able to detect a failure of one of the equipments concerning the generation of lateral guidance orders of the aircraft. Additionally, the device includes a failure anticipation comparator device for analyzing inlet parameters of the equipments to determine when a failure of one of the equipments should be anticipated.

Abstract: The monitoring device (1) comprises means (22) for implementing monitoring, in order to check whether two flight management systems (4, 5) are able to operate in dual mode.

Abstract: Method and device for automatically monitoring the ability of an aircraft to follow a flight trajectory with at least one turn. The monitoring device (1) includes means (6, 8, 10, 11, 14) for implementing monitorings in order to estimate the ability of the aircraft to follow at least one turn of the flight trajectory.

Abstract: Method and device for automatically monitoring lateral guidance orders of an aircraft. The monitoring device (1) includes means (8) for implementing comparisons between guidance orders generated by a number of equipments (E1, E2, E3) in order to be able to detect a failure of an equipment concerning the generation of lateral guidance orders of the aircraft (AC).

Abstract: The device (1) comprises means (5) for implementing comparisons between guidance orders from at least three different equipments (E1, E2, E3) in order to generate a passivated guidance order which is transmitted to a flight control system (4) of the aircraft.

Abstract: The device (1) comprises means for implementing monitorings, and means (5) for determining a global status that indicates if the aircraft is able to carry out air operations with required performance.