Abstract: A system for piloting an aircraft during an autonomous approach for the purpose of landing. The piloting system has a flight guidance computer that directly computes, with the aid of a position indication and of information characterizing a virtual approach axis, linear deviations. Another computer computes aircraft piloting instructions using the linear deviations.

Abstract: Disclosed is a method and system for aiding the piloting of an aircraft to climb to a safety altitude situated above an existing low-height flight trajectory comprised of a lateral trajectory and a vertical trajectory, in which the safety altitude is the altitude of the aircraft that avoids collision of the aircraft with surrounding terrain. The aircraft is guided along the existing lateral trajectory of the low-height flight trajectory in a horizontal plane; and the aircraft is brought to the safety altitude by subjecting the aircraft to a climb mode in a vertical plane, which causes the aircraft to climb according to a climb slope which is greater than or equal to a maximum slope according to the existing vertical trajectory of the low-height flight trajectory.

Abstract: An aircraft guidance system defines a main approach path and a corrected approach path, which has an extra vertical margin related to the ground over which the craft is flying as compared with a main approach path representing a category-1 precision approach. The guidance system guides the aircraft following the corrected approach path.

Abstract: A method for monitoring the integrity of an aircraft position computed on board including on-board means for monitoring the aircraft position that are able to detect common-mode failures. Dissimilar computing channels of the aircraft position are utilized, the dissimilar channels being on-board in the aircraft. Each aircraft position primary computing channel is supplemented by a dissimilar computing channel, which allows the coherence of the primary aircraft position, the position computed by the primary computing channels, to be verified. Mechanisms for verifying the reliability of the results from dissimilar computing channels are implemented to limit a loss of performance from the utilization of dissimilar computing channels, which are less performing than primary computing channels.

Abstract: A guidance system includes a device to generate an alphanumeric identification characteristic, enabling identification of a data item which is used for a selected guidance mode of an aircraft. The system also includes a display unit which automatically shows the alphanumeric identification characteristic on a display screen.

Abstract: A device to assist in an independent piloting of an aircraft at least in a descent phase includes a unit to determine a descent axis which assists a pilot in flying from a safe altitude to a decision height, the descent axis being secured relative to the ground being flown over, and a guidance system to assist in the guiding of the aircraft along said descent axis in a descent phase.

Abstract: The invention concerns a system (1) comprising guiding means (3) which, when guiding the aircraft along a low-altitude flight path, and upon a climb command, continue guiding the aircraft along the lateral path of said low-altitude flight path, and subject the aircraft in the vertical plane to a climb along a climb gradient which is not less than a maximum gradient of said flight path.

Abstract: The subject of the invention is a method of aiding the piloting of an aircraft (3), which is intended to aid the piloting of the aircraft during an autonomous approach to a landing runway (P) for the purpose of landing, said aircraft comprising at least one locating means (10, 12), wherein: a) an estimated instant of arrival of the aircraft on the runway is determined; b) a prediction of the performance of said locating means of the aircraft at least at this instant of arrival is determined; and c) on the basis of said performance of the locating means and of characteristics of said approach, at least one minimum decision height (Hmin) corresponding to this instant of arrival is determined, above which the aircraft is protected from the risks of collision with the environment when it is guided automatically onto an approach axis (A) corresponding to said approach. The invention also relates to a device for implementing this method.

Abstract: The guidance system (1) comprises means (2, 6) for generating an alphanumeric identification characteristic, making it possible to identify a data item which must be used for a selected guidance mode of the aircraft, and display means (10) which automatically shows this alphanumeric identification characteristic on a display screen (12).

Abstract: System for piloting an aircraft, at least for piloting the aircraft during an autonomous approach for the purpose of landing. The piloting system (1) comprises a flight guidance computer (10) which comprises a means (11) for computing directly with the aid of a position indication and of information characterizing a virtual approach axis, linear deviations, and a means (13) for computing, with the aid of said linear deviations, piloting instructions for the aircraft.

Abstract: The invention relates to a method and a device for assisting the flying of an aircraft, said method and device being used to determine an approach path and comprising a guidance system for helping to guide the aircraft along this approach path. The inventive method and device define a main approach path (AI) and a corrected approach path that has an extra vertical margin (?H) related to the ground over which the craft is flying as compared with a main approach path representing a category 1 precision approach. Said guiding system guides the aircraft following the corrected approach path.

Abstract: The subject of the invention is a method of aiding the piloting of an aircraft (3), which is intended to aid the piloting of the aircraft during an autonomous approach to a landing runway (P) for the purpose of landing, said aircraft comprising at least one locating means (10, 12), wherein: a) an estimated instant of arrival of the aircraft on the runway is determined; b) a prediction of the performance of said locating means of the aircraft at least at this instant of arrival is determined; and c) on the basis of said performance of the locating means and of characteristics of said approach, at least one minimum decision height (Hmin) corresponding to this instant of arrival is determined, above which the aircraft is protected from the risks of collision with the environment when it is guided automatically onto an approach axis (A) corresponding to said approach. The invention also relates to a device for implementing this method.

Abstract: The device comprises a means for measuring a dynamic temperature on the outside of the aircraft, a means for determining a static temperature around the aircraft, using said dynamic temperature, a means for determining, using said static temperature and a thermodynamic equation, a second temperature value corresponding to an estimated temperature at said destination altitude, a means for determining the difference between said first and second temperature values, and a means for emitting a warning signal when said difference is greater than a predetermined value.

Abstract: A method for monitoring the integrity of an aircraft position computed on board including on-board means for monitoring the aircraft position that are able to detect common-mode failures. Dissimilar computing channels of the aircraft position are utilized, the dissimilar channels being on-board in the aircraft. Each aircraft position primary computing channel is supplemented by a dissimilar computing channel, which allows the coherence of the primary aircraft position, the position computed by the primary computing channels, to be verified. Mechanisms for verifying the reliability of the results from dissimilar computing channels are implemented to limit a loss of performance from the utilization of dissimilar computing channels, which are less performing than primary computing channels.

Abstract: The device (1) comprises means (3) for determining a descent axis making it possible to fly from a safe altitude to a decision height, said descent axis being secured relative to the ground being flown over, and a guidance system (5) to assist in the guiding of the aircraft along said descent axis in a descent phase.

Abstract: The device comprises a means for measuring a dynamic temperature on the outside of the aircraft, a means for determining a static temperature around the aircraft, using said dynamic temperature, a means for determining, using said static temperature and a thermodynamic equation, a second temperature value corresponding to an estimated temperature at said destination altitude, a means for determining the difference between said first and second temperature values, and a means for emitting a warning signal when said difference is greater than a predetermined value.