Abstract: The invention relates to a device for developing an aircraft hold located under the floor of the passenger cabin and the cockpit and including a so-called commercial area in which freight can be transported and a technical area including technical equipment and located at the front of the commercial area an at least partially under the cockpit, wherein said device includes: at least one compartment sealed relative to the hold located at the front of said commercial area and at the back of a portion at least of the technical area; a staircase connecting each compartment to a portion of the intermediate floor between the passenger cabin and the cockpit; and a sealed corridor extending from said staircase to each of said sealed compartments.

Abstract: An item of aircraft galley unit separating a cockpit from an insecure zone of the aircraft, including two portions separated from one another by a secure wall, one of the portions being accessible only from the cockpit, the other being accessible only from the insecure zone, a recess being made in the portion of the item of unit accessible from the cockpit.

Abstract: An aircraft with at least two levels situated one above the other, including: a platform that can be moved between a first position and a second position, the first of these positions, as a lower position, being situated at a first level of the aircraft and the second position, as a higher position, being situated at a second level higher than that of the first level; an assembly of traction cables connected on the platform and a mechanism operating the cables for raising and lowering the platform; and an assembly of walls surrounding at least partially the platform and along which the platform moves.

Abstract: A casing including a wall defining an internal housing which allows retraction of a corresponding landing gear into the interior of the housing. The wall separates the non-pressurized internal housing from a surrounding pressurized zone of the aircraft. The separation wall is a shell which envelops the shape of the landing gear, on the side opposite the opening of the internal housing, and the reinforcement structure includes on one hand longitudinal reinforcement elements extending on both sides of the shell and on the other hand transverse reinforcement elements connecting the longitudinal reinforcement elements. The shell has a first zone of considerable width accommodating the wheels of the landing gear, a second zone of lesser width accommodating the rod of the landing gear, and a third zone running from the second zone of lesser width, becoming wider and accommodating a portion of the mechanism for deployment/retraction of the landing gear.

Abstract: A stairway used for gaining access from a theoretically horizontal lower level to a theoretically horizontal higher level, and including a succession of intermediate steps between these two levels. A subassembly of intermediate steps corresponding to the steps closest to the lower level is mobile between a first deployed position at which the lower intermediate steps are in the extension of other intermediate steps, and a raised position at which the lower intermediate steps are in a substantially vertical position.

Abstract: A stairway used for gaining access from a theoretically horizontal lower level to a theoretically horizontal higher level, and including a succession of intermediate steps between these two levels. A subassembly of intermediate steps corresponding to the steps closest to the lower level is mobile between a first deployed position at which the lower intermediate steps are in the extension of other intermediate steps, and a raised position at which the lower intermediate steps are in a substantially vertical position.

Abstract: The present invention relates to a front aircraft part (1) comprising a non-pressurised landing gear housing zone (28) designed to house a front landing gear (30) in a retracted state, as well as a pressurised zone (2) adjacent to the non-pressurised landing gear housing zone. According to the invention, the pressurised zone is delimited by a set of walls among which only a substantially flat-shaped sealed partition wall (10) also participates in delimiting the non-pressurised landing gear housing zone (28).

Abstract: The invention relates to a device for developing an aircraft hold located under the floor of the passenger cabin and the cockpit and including a so-called commercial area in which freight can be transported and a technical area including technical equipment and located at the front of the commercial area an at least partially under the cockpit, wherein said device includes: at least one compartment sealed relative to the hold located at the front of said commercial area and at the back of a portion at least of the technical area; a staircase connecting each compartment to a portion of the intermediate floor between the passenger cabin and the cockpit; and a sealed corridor extending from said staircase to each of said sealed compartments.

Abstract: An aircraft with at least two levels situated one above the other, including: a platform that can be moved between a first position and a second position, the first of these positions, as a lower position, being situated at a first level of the aircraft and the second position, as a higher position, being situated at a second level higher than that of the first level; an assembly of traction cables connected on the platform and a mechanism operating the cables for raising and lowering the platform; and an assembly of walls surrounding at least partially the platform and along which the platform moves.

Abstract: The invention relates to an item of aircraft galley furniture separating a cockpit (10) from an insecure zone (22) of the aircraft, characterized in that it comprises two portions separated from one another by a secure wall (24), one of the portions being accessible only from the cockpit, the other being accessible only from the insecure zone, a misalignment (32) being made in the portion of the item of furniture accessible from the cockpit.

Abstract: The tires that equip airplane wheels have elastomer treads from which a piece may detach and damage a zone of the airplane. Shredding means, situated between wheel and another part of the airplane, shred the piece of tread, which detaches from the tire and is projected onto the other part of the airplane, into several small pieces. These shredding means, such as a grid with blades that can cut the tread material, are arranged so as to disperse the pieces. A process reinforces the tolerance of an airplane to impacts of a detached piece of the tread, by shredding the piece into several small pieces between the instant when the piece is detached and the instant when the piece would have struck airplane.

Abstract: The casing comprises a wall defining an internal housing open on the bottom in order to allow the retraction of a corresponding front landing gear into the interior of the housing. The said wall separates the said non-pressurized internal housing from a surrounding pressurized zone of the aircraft. A reinforcement structure is provided around the wall on the side of the surrounding pressurized zone. The separation wall is a shell coming to envelop the shape of the front landing gear, on the side opposite the opening of the internal housing, and the reinforcement structure comprises on the one hand longitudinal reinforcement elements extending on both sides of the shell and on the other hand transverse reinforcement elements connecting the longitudinal reinforcement elements.

Abstract: The present invention relates to a front aircraft part (1) comprising a non-pressurised landing gear housing zone (28) designed to house a front landing gear (30) in a retracted state, as well as a pressurised zone (2) adjacent to the non-pressurised landing gear housing zone. According to the invention, the pressurised zone is delimited by a set of walls among which only a substantially flat-shaped sealed partition wall (10) also participates in delimiting the non-pressurised landing gear housing zone (28).

Abstract: The tires that equip airplane wheels have elastomer treads from which a piece may detach and damage a zone of the airplane. Shredding means, situated between wheel and another part of the airplane, shred the piece of tread, which detaches from the tire and is projected onto the other part of the airplane, into several small pieces. These shredding means, such as a grid with blades that can cut the tread material, are arranged so as to disperse the pieces. A process reinforces the tolerance of an airplane to impacts of a detached piece of the tread, by shredding the piece into several small pieces between the instant when the piece is detached and the instant when the piece would have struck airplane.