Abstract: A terrain avoidance method and system for an aircraft includes a collision alarm device and an auto-pilot device including a first determination unit for determining a climbing order with optimal slope for the aircraft, a checking unit for checking whether a first altitude gain at the relief, by applying the optimal slope climbing order, is sufficient for clearing said relief, a finding unit for finding if at least one heading variation value exists, for which the corresponding altitude gain is sufficient to clear the relief, and a switching and calculating unit for applying to the aircraft, if the first altitude gain is sufficient, an optimal slope climbing order with an order to maintain the current heading and, if the first altitude gain is insufficient, a particular climbing order sufficient to clear the relief, with a heading order which corresponds to the selected heading variation value.

Abstract: Automatic take-off method and device for an airplane. The device includes a device for automatically determining, using an elevation guidance objective, a vertical piloting objective which is expressed as rate of pitch, and a device for automatically determining, using the vertical piloting objective, deflection commands for elevators of the airplane.

Abstract: A method to assist the piloting of an aircraft in a non-precision approach during a landing phase may include a series of successive steps that are carried out interactively and automatically. The steps include verifying, in accordance with respective standards of operation, conditions relating to the correct functioning of a plurality of equipment of the aircraft and to the integrity and precision of measurements of parameters used for implementing the non-precision approach, based on information from the plurality of equipment. On the basis of the verified conditions, an appropriate approach category is selected and presented on a display screen.

Abstract: The invention concerns a terrain avoidance method and system for an aircraft. The system comprises a collision alarm device (3) and an auto-pilot device (5) including means (7) for determining a climbing order with optimal slope for the aircraft, means (12) for checking whether a first altitude gain at the relief, by applying the optimal slope climbing order, is sufficient for clearing said relief, means (11) for finding if there exists at least one heading variation value, for which the corresponding altitude gain is sufficient to clear the relief, and means (17, 22) for applying to the aircraft, if the first altitude gain is sufficient, an optimal slope climbing order with an order to maintain the current heading and, if the first altitude gain is insufficient, a particular climbing order sufficient to clear the relief, with a heading order which corresponds to the selected heading variation value.

Abstract: Automatic take-off method and device for an airplane. The device (1A) comprises means (6A) for automatically determining, using an elevation guidance objective, a vertical piloting objective which is expressed as rate of pitch, and means (9A) for automatically determining, using said vertical: piloting objective, deflection commands for elevators of the airplane.

Abstract: An aircraft terrain avoidance method and device may employ a collision warning section that transmits a caution signal when the aircraft risks colliding with the terrain at the end of a first predetermined period of time. A warning signal is transmitted when the aircraft risks colliding with the terrain at the end of a second predetermined period of time, which is shorter than the first predetermined period of time. A piloting system causes the aircraft to automatically climb with a first gradient corresponding to a predetermined value upon the transmission of the caution signal. An automatic pilot is engaged automatically, if currently disengaged, to force the aircraft to climb with a second gradient, corresponding to the maximum gradient possible in the current flight conditions of the aircraft, upon the transmission of the warning signal.

Abstract: Terrain avoidance method and device for an aircraft. The terrain avoidance device (1) comprises a collision warning device (2) capable of transmitting a caution, when the aircraft risks having a collision with the terrain at the end of a first predetermined period of time, and a warning, when the aircraft risks having a collision with the terrain at the end of a second predetermined period of time which is shorter than the said first predetermined period of time, and a piloting system (3) of the aircraft, comprising a means of piloting (4) able to subject the aircraft automatically to a climb command with a first gradient corresponding to a predetermined value, at the time of transmission of a caution, and an automatic pilot which is engaged automatically if it is disengaged and which automatically and exclusively forces the aircraft to climb with a second gradient corresponding to the maximum gradient possible in the current flight conditions of the aircraft, at the time of transmission of a warning.

Abstract: Method and device to assist in the piloting of an aircraft in a non-precision approach during a landing phase.