Abstract: A flying aid device for a fly-by-wire aircraft which has at least two mechanically independent control columns (M1, M2). The device (1) includes: a system (SO) for detecting multiple control corresponding to simultaneous operation of at least two of the control columns (M1, M2); and informing systems (S1, S2, S3, S4), each of which is associated with one of the control columns (M1, M2) and is intended to generate within the control column (M1, M2), when the detection system (SO) detects multiple control, a tactile sensation that informs a pilot of the aircraft who is operating the control column (M1, M2) of the multiple control.

Abstract: The present invention relates to an integrated digital bus simulator system for automatically testing electronic packages embarked on an aircraft including a computer. This bus simulator is able to reconfigured under the control of the computer of the system by reconfigurating its hardware and software so as to simulate the digital buses used on the aircraft. The system includes a bus simulation module which is reconfigurable in accordance with the bus to be simulated and with the wired logic downloaded into this module so as to adapt the architecture of the hardware to the purpose of the bus to be simulated.

Abstract: An hydraulic actuator composed of a double-acting actuator, a mobile switching member disposed in a housing connected hydraulically to the actuator, two fluid inlet and outlet pipes and a control member adapted to command the mobile switching member to move between a neutral configuration and an active service configuration. A variable speed pump system is connected to the housing by an auxiliary circuit; the mobile switching member has an active second configuration in which the actuator communicates with the auxiliary circuits, whereby the actuator, the pump system and the auxiliary circuit constitute a hydrostatic transmission.