Aircraft seat with a single-beam structure and aircraft comprising such a seat

Aircraft seat comprising:

• a seat bucket (1), which establishes a longitudinal direction X forward of the seat and a vertical direction Z above the seat, said seat bucket comprising a seatback (3) and a seat pan (2) integral with said seatback, and
• a single structural guide beam (5), located in a rear part of the seat, oriented in an approximately vertical or inclined direction Z1 in relation to the vertical direction Z in a plane XZ determined by the longitudinal direction X and vertical direction Z, on which said guide beam the seat bucket (1) is fastened,
• said guide beam (5) being integral with a connecting structure for connecting said guide beam to a floor (100) of an aircraft,
• said connecting structure comprising,
• at least four fastening points, for fastening to said floor, distributed along two lines that are approximately parallel to the longitudinal direction X and that are apart from a vertical plane of symmetry XZ of said seat, and
• a mounting sleeve (6) of the guide beam (5) and with which sleeve four feet (8a, 8b, 9a, 9b) are integral and at the free ends of the four feet the fastening points are placed.