Abstract: A flexible corner fitting configured to contribute to a connection between at least three walls of at least one aircraft box structure, and to make them leaktight with respect to liquids. The corner fitting has at least three fixing plates and at least three edge corners made of flexible material. Each of the at least three fixing plates is connected to each of the other at least three fixing plates by one of the edge corners made of flexible material. The edge corners made of flexible material ensure adjustment of the corner fitting without machining or the addition of shims.

Abstract: An assembly method includes a succession of assembly steps of assembling fuselage components of the fuselage portion of the aircraft, for example the nose of the aircraft, to form a fuselage body, a mounting step of introducing, into the fuselage body thus formed, a floor module having at least a predetermined width, and which can be provided with items of equipment, and a fastening step of fastening the fuselage body to the floor module such that the floor module shapes the final shape of the fuselage body and the assembled fuselage portion is obtained, the floor module, which has at least a suitable predetermined width, making it possible, when it is incorporated into the fuselage body, to provide the fuselage body, which is slightly flexible, with its desired and definitive shape corresponding to the desired and definitive shape of the assembled fuselage portion.

Abstract: A heat shield for protecting a part of an aircraft is disclosed including superposed layers providing thermal protection, and one or more layers providing fire protection. The heat shield also may include other layers implementing other functions.

Abstract: A heat shield including a main component and at least one secondary component for a part of an aircraft are disclosed including a main component adhesively bonded to the part and at least one secondary component secured removably to the main component. The main component and the secondary component are made from at least one material that simultaneously provides thermal protection and fire protection, therefore making it possible to obtain a heat shield that is particularly effective and includes at least one removable secondary component allowing access.

Abstract: A stiffened structure includes stiffeners (14.1, 14.2, 14.3) and nodes (12) at which three stiffeners (14.1, 14.2, 14.3) of different directions intersect, with the surfaces of the stiffeners (14.1, 14.2, 14.3) being arranged in planes that are perpendicular to the same plane, whereby the stiffened structure includes at least one opening (26) and is characterized in that the opening (26) is surrounded by a hexagonal belt, formed by peripheral stiffeners (40).

Abstract: A stiffened structure includes stiffeners (14.1, 14.2, 14.3) and nodes (12) at which three stiffeners (14.1, 14.2, 14.3) of different directions intersect, with the surfaces of the stiffeners (14.1, 14.2, 14.3) being arranged in planes that are perpendicular to the same plane, whereby the stiffened structure includes at least one opening (26) and is characterized in that the opening (26) is surrounded by a hexagonal belt, formed by peripheral stiffeners (40).