Abstract: A method for ensuring the safety of an aircraft flying horizontally at low speed includes an operation in which, when the flaps of the aircraft are disposed in a maximum extended position and are blown on by airscrews, the flaps are at least partially retracted, automatically, based on whether the thrust of the engines is at least equal to a predetermined lift value.

Abstract: A method for ensuring the safety of an aircraft flying horizontally at low speed. According to the invention, with the flaps (5) being in a maximum extended position and being blown on by the airscrews (4), said flaps (5) are at least partially retracted, automatically, when the thrust of the engines (3) is at least equal to a predetermined lift value.

Abstract: A method for ensuring the safety of an aircraft flying horizontally at low speed includes determining a lower speed threshold for the aircraft, measuring the actual speed of the aircraft and comparing the actual speed with the threshold. When the actual speed reaches the threshold in the decreasing direction, the diving command of the aircraft is limited to a load factor (fg) greater than 0g. According to the invention: a lower speed threshold is determined for the aircraft; the actual speed of the said aircraft is measured; and the said actual speed is compared with the said threshold and, when the said actual speed reaches the said threshold in the decreasing direction, the diving command of the said aircraft is limited to a load factor (fg) greater than 0 g.

Abstract: A method and device for controlling the attitude of an aircraft may employ spoilers that are arranged on the wings of the aircraft and whose respective angular positions can be adjusted by controllable actuators. A command attitude determining section determines a command attitude of the aircraft corresponding to an attitude that the aircraft must achieve. A command position calculator calculates command positions of the spoilers, corresponding to particular angular positions of the spoilers, making it possible to bring the aircraft to the command attitude. A control instruction calculator calculates control instructions for the controllable actuators, making it possible to bring the spoilers into the command positions, and applies the control instructions to the spoiler actuators.

Abstract: A method for ensuring the safety of an aircraft flying horizontally at low speed. According to the invention: a lower speed threshold is determined for the aircraft; the actual speed of the said aircraft is measured; and the said actual speed is compared with the said threshold and, when the said actual speed reaches the said threshold in the decreasing direction, the diving command of the said aircraft is limited to a load factor (fg) greater than 0 g.

Abstract: The device (1) comprises spoilers (3) that are arranged on the wings (4) of the aircraft and whose respective angular positions can be adjusted by controllable actuators (6), means (8) for determining a command attitude of the aircraft corresponding to an attitude that the aircraft must achieve, means (9) for calculating command positions of the said spoilers (3), corresponding to particular angular positions of the said spoilers (3), making it possible to bring the aircraft to the said command attitude, and means (11) for calculating control instructions for the said controllable actuators (6), making it possible to bring the said spoilers (3) into the said command positions, the said control instructions being applied to the said actuators (6) of the said spoilers (3).