Airbus Operations (s.a.s.)

Airbus Operations Gmbh

Laurent Bel

Fabien Raison

Francis Dazet

Raphaël Brisbart

Philippe Delorme

Jerome Antypas

Jérome Antypas

Stéphane Romani

A method to automatically shutdown engines of a twin-engine aircraft where each engine is controlled by a control unit () and an interface device () coordinates the control units, the interface device having first and second operating modes, wherein the switching between modes is based on the airspeed and altitude of the aircraft; wherein in the first operating mode, the automatic shutdown can take place only on the first of the two engines () which exhibits an operational anomaly, and in the second operating mode, typically implemented during a cruise phase, the automatic shutdown will be able to be implemented on a first and then on a second engine () if the second engine exhibits an operational anomaly more severe than the one exhibited by the first engine.

Method for automatic shutdown of engines of a twin-engined aircraft

The disclosure herein relates to a part of an aircraft structure including a portion of a floor structure and a portion of a hull structure, connected to one another by a connecting element. In accordance with, the disclosure herein the connecting element includes a flexible cable fixed at one of the ends thereof to the portion of a floor structure and fixed at the other, second of the ends thereof to the portion of a hull structure. When the connection between the portion of a floor structure and the portion of a hull structure is subjected to tensile load, the flexible cable makes it possible to meet the standards of resistance to forward accelerations of the aircraft. When the connection is subjected to compressive load, the flexible cable relaxes and bends, which limits the requirements of withstanding compressive stresses and therefore the weight of the connecting element.

Flexible connection between the floor structure and the hull structure of an aircraft

An aircraft structure part comprising a floor structure, a hull structure, and a connecting element. The connecting element comprises a rod attached, at its first end, to one of the hull and the floor; an attachment element, attached to the other of the hull and the floor, and provided with an opening in which the second end of the rod is slidably mounted; and an endstop attached to the rod so as to engage with the attachment element, to limit the sliding amplitude of the rod in the opening. When the connection between the floor and the hull is loaded in tension, the endstop makes it possible to comply with the standards for withstanding acceleration towards the aircraft front. When the connection is loaded in compression, the rod slides freely in the opening, which limits the constraints of withstanding compressive stresses, reducing the weight of the connecting element.

Sliding connection between the floor structure and the hull structure of an aircraft

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Gagnac sur Garonne, France

Laurent Bel