Fastening system for an aircraft intended to fasten at least one tank intended to contain liquid hydrogen, allowing easy access to the tank

A fastening system that is configured to fasten at least one tank to contain liquid hydrogen, is integrated into a fuselage body of an aircraft, is linked to an orthogonal frame of reference defined by an axis X to be parallel to a longitudinal axis of the fuselage body, a horizontal axis Y, and a vertical axis Z, and has a vertical plane of symmetry perpendicular to the axis Y, the fastening system comprising:

• a longitudinal box extending parallel to the axis X and having a plane of symmetry that is coincident with the vertical plane of symmetry;
• a plurality of upper formers that are perpendicular to the axis X and fastened to an upper end of the longitudinal box, wherein:
• the upper formers of the plurality of upper formers are distributed along the axis X;
• the plurality of upper formers comprise at least two fastening upper formers, each of which has two fastening devices on either side of the longitudinal box in order to each connect a first fastening point of at least one tank to the at least two fastening upper formers at a pivot axis that is parallel to the axis X;
• and
• the pivot axis is in a plane that is perpendicular to the axis Y and comprises a center of gravity of the at least one tank;
• a plurality of lower formers that are perpendicular to the axis X and fastened to a lower end of the longitudinal box, wherein:
• the lower formers of the plurality of lower formers are distributed along the axis X;
• the plurality of lower formers comprise at least one fastening lower former, which has two second fastening devices on either side of the longitudinal box in order to each connect a second fastening point of the at least one tank to the at least one fastening lower former;
• the first fastening point and the second fastening point of a tank of the at least one tank is being capable of being comprised in a plane that is perpendicular to the axis Y and comprises the center of gravity of the at least one tank;
• and
• at least two third fastening devices fastened to the two upper panels symmetrically with respect to the vertical plane of symmetry, a first of the at least two third fastening devices being configured to connect a third fastening point of one of the at least one tank to an upper panel and a second of the at least two third fastening devices being configured to connect a third fastening point of another of the at least one tank to the upper panel;
• wherein each of the at least two third fastening devices comprises:
• a second triangular double plate comprised in a vertical plane perpendicular to the axis Y, the second triangular double plate being fastened to the upper panel by a fastening side of the second triangular double plate, the fastening side being opposite to a fastening vertex of the second triangular double plate;
• and
• two second double link rods parallel to the axis X, the two second double link rods having a first end connected to the fastening vertex by a first pivot connection of axis Y, the two second double link rods having a second end to be connected to the tank by a second pivot connection of axis Y.