Abstract: An aircraft engine assembly including an attachment mechanism of a turbojet onto a rigid structure of a mounting strut, including a first, second, and third forward engine attachment for taking up thrust loads brought onto the fan frame, and arranged such that the third attachment passes through a first diametrical plane of the turbojet, the first and second attachments being disposed on one side and another of the first plane. The first and second forward engine attachments are respectively brought to the fan frame at two points, situated beyond the second diametrical plane of the turbojet, orthogonal to the first diametrical plane, with respect to the third attachment.

Abstract: A method for assembling two structural elements, at least one of the two structural elements being tube-shaped and including a skin made of a fiber-reinforced composite material. The ability of the element to adapt to the shape and perimeter of a junction interface is improved by providing longitudinal grooves distributed on the circumference of the junction interface. The grooves are of a sufficient length to provide the junction interface with the flexibility to accommodate, through relative radial movement of each portion located between two grooves, differences in shape and perimeter among the junction interfaces of the two structural elements.

Abstract: The invention relates to a protection panel (115) for a vehicle that comprises an outer surface (140) including at least one composite material, and is mounted via deformable parts on a mounting (135) attached to the vehicle structure. The deformable parts are attached to several stiffening parts (145) of the mounting. In some embodiments, the deformable parts are perpendicular to the outer surface of the panel and are capable of buckling under the effect of impacts. In some embodiments, the deformable parts are in the form of clips, the composite material consists of CFRP and the mounting is rigid.

Abstract: An aircraft engine assembly including an annular structure surrounding a central casing and mechanically connected to the central casing by the intermediary of a mounting mechanism. To each of the first and second engine mounts is associated a reinforcing structure forming a shear plane, fixedly connected: in an area of the annular structure at a first anchoring point; in an area of the fan casing at a second anchoring point; and in an area of a structural arm or of the intermediate casing at a third anchoring point. The structure extends along a radial imaginary plane passing through an anchoring point of the mount on the fan casing.

Abstract: A system for dissipating a lightning current produced by a thunderstorm discharge on an avionic equipment installed on the external skin of an aircraft, the external skin being made of a composite material covered with a layer of expanded metal and including an orifice in which there is positioned an aerodynamic plate covering the avionic equipment. The aerodynamic plate is attached to the external skin by a doubler. The system includes at least one metal plate at least partially surrounding the aerodynamic plate and mounted so as to ensure electrical continuity between the doubler and the layer of expanded metal so as to dissipate the lightning current into the layer of expanded metal.

Abstract: The data frequency analysis method comprises: a step (310) for inputting signals coming from a first sensor; a step (315) for inputting signals coming from at least a second sensor, each second sensor being positioned close to the first sensor so that the signals coming from each second sensor are strongly correlated with the signals coming from the first sensor; a step of estimating, for each sensor, a transfer function or model established from the combination of the signals from the first sensor and from each second sensor; and a step (320) of extracting the structural properties of the system from each of the estimated models.

Abstract: A flight control system for an aircraft, controlling a plurality of actuators adapted to actuate control surfaces of the aircraft, including: at least one communications bus; at least one computer situated in the avionics bay of the aircraft, and adapted to calculate flight commands and to transmit them over the bus in the form of command messages; and at least a first remote terminal connected to the bus, adapted to control a control surface actuator, and to acquire the state of the actuator from information provided by at least a first sensor, the first terminal receiving command messages from the computer and transmitting electrical orders to the actuator as a function of the command messages received in this way, and also transmitting messages to the computer, at its request, relating to the state of the actuator as a function of the information provided by the first sensor.

Abstract: The present invention relates to a method for transmitting ACARS messages over IP, between a transmitter and a receiver, an ACARS message (M) of a first application being divided into a plurality of blocks (B1, B2, . . . Bn). For each block of said message, except for the last, a dummy acknowledgment of receipt , . . . , of said block is locally sent back at the transmitter to said application, when the transmitter receives from the receiver a message (D(ackC), S(ackC), S(ackC, ack1tcp), U(e, B?1, . . . , B?n?ackC)), indicating proper reception of said plurality of transmitted blocks, it generates an acknowledgment of receipt (ackn) of the last block before sending it back to said application.

Abstract: An aircraft door closing device, and an aircraft incorporating such a device. The door includes a leaf and, connected to the aircraft fuselage, a frame including an opening configured to take the leaf, the leaf adopting a closed position to block the opening and another position to reveal the opening. The device includes a bearing mechanism, some on the leaf and some on the frame, each formed by a crenelated structure, two crenelated structures being arranged such that the teeth of one pass through notches of the other as the leaf moves from one position to the other, and such that the teeth of the leaf structure bear, in the closed position, on the inside face of the corresponding teeth of the frame structure.

Abstract: An engine attachment pylon for an aircraft, including a rigid structure including a box formed by one or plural hollow segments. The section of at least one hollow segment is circular or elliptical in shape.

Abstract: An aircraft jet engine including a wall centered about a longitudinal axis and surrounding a stream of gas ejected at a downstream end of the wall in the direction of the axis, primary ducts distributed at the periphery of the downstream end of the wall configured on command each to eject a jet of primary fluid to interact with the ejected stream of gas, the primary ducts of each pair converging towards one another near the downstream end of the wall so that the primary jets ejected form two sides of a triangle that meet at the vertex thereof in a view projected onto a plane perpendicular to a transverse plane, and secondary ducts each associated with each pair of primary ducts and configured on command to eject a jet of secondary fluid directed into the triangle formed by the primary jets.

Abstract: An aircraft including at least one door for passengers to board the aircraft, and at least one interconnection device connecting an aircraft internal structure component and a skin of a fuselage of the aircraft, the interconnection device being positioned near an internal periphery of the door in a region subject to external knocks and including at least one region that is weakened in terms of compression so as to absorb the knocks experienced by an external face of the skin of the fuselage, the device also being configured to withstand tensile forces applies to an internal face of the skin of the fuselage by internal pressure inside the aircraft.

Abstract: The invention relates to a structural frame made from a composite material. The purpose of the invention is to obtain a structural frame with high mechanical performances while remaining simple in construction. This purpose is achieved in arranging sets of single-directional fibres in the main part of the structural frame at a predetermined angle. This system may be used as a structural frame particularly for an aircraft fuselage.

Abstract: A system for routing ACARS messages towards a plurality of transmission media, configured to be loaded onboard an aircraft, including: a database including a plurality of routing profiles, each profile being formed by a list indicating a rank of preference for each transmission medium, and a selection mechanism extracting, from an ACARS message sending request, a routing profile identifier, and selecting in the routing profile stored in the database, corresponding to the identifier, a transmission medium, according to its rank of preference, the thereby selected transmission medium then being used for transmitting the message.

Abstract: The invention relates to a device for motorized aircraft comprising at least one avionic component (300) positioned in the said aircraft, at least one engine interface (310) positioned in the said aircraft and at least one engine controller (315) positioned in or near an engine (320) of the said aircraft. According to the device of the invention, the said at least one engine interface (310) is designed to exchange data between the said at least one avionic component (300) and the said at least one engine controller (315). The said at least one engine interface (310) is generic and able to communicate with engine controllers (315) of various types that may be mounted on said aircraft. The said at least one engine controller is specific to a particular engine.

Abstract: A fuselage structure for an aircraft fuselage in composite material and an aircraft including such a fuselage structure. The fuselage structure provides savings in mass while allowing grounding of electric systems, and with which substantial mechanical stiffness characteristics may be guaranteed. In the fuselage structure attachment modules provide an assembling function as well as an electric function.

Abstract: An ACARS message communications system including at least one on-board piece of equipment harbouring an application adapted for transmitting and/or receiving ACARS messages, and a router adapted for routing, via a plurality of subnetworks, ACARS messages from and/or to the application. The piece of equipment and the router are connected to an AFDX network and the application is adapted for dynamic registration at the router, via the network, the router only routing the messages if the application is actually registered thereat.

Abstract: A monitoring system and a monitoring method applied to the monitoring system, in which the monitoring system includes detectors detecting a state of a turbojet thrust reverser, a monitoring computer device controlling the reverser monitored by the computer as a function of information from the detectors provided to the computer by way of the control device, and a device regulating the turbojet monitored by the computer as a function of the information from the detectors provided to the computer by way of the control device.

Abstract: A crossed monitoring device for a head-up display that can be used for displaying a representation of at least one first datum. The device includes a mechanism generating at least one first image from the at least one first datum, a mechanism receiving from the at least one second display at least one second image generated from at least one second datum, and a mechanism selecting one of the first and at least one second image. The device can further include a mechanism modifying images according to characteristics of the displays. Each display can modify the images to be displayed according to its characteristics, and each display can modify the images according to the characteristics of each display.