Aircraft having reduced environmental impact

Aircraft of reduced environmental impact, having a longitudinal axis (X-X) and comprising:

• at least one engine (10;
• 10G, 10D) which comprises at least one propeller (12, 13;
• 32, 33) positioned behind the said engine and able to exert thrust on the said aircraft and which is mounted at the rear of the said aircraft, on the back thereof, the axis (L-L) of the said engine being at least substantially parallel to the said longitudinal axis (X-X) of the aircraft, the said engine and the said propeller being such that, should they shatter, their debris would follow paths contained in a shatter region (14) aligned with the said axis (L-L) of the engine and delimited, transversely to the latter axis (L-L), by a front boundary (15) and by a rear boundary (16);
• and
• a cell (2;
• 22) the rear part (2R;
• 22R) of which comprises a horizontal tail plane (5;
• 25) and two vertical tail planes (6;
• 26) positioned one at each end of the said horizontal tail plane, the said rear part of the cell comprising a tail box (8;
• 28) supporting the said horizontal tail plane and the said propeller being positioned vertically in line with the said rear part of the cell so that the latter forms an anti-noise barrier at least in respect of the downwardly directed engine noise,
• wherein:
• the said engine (10;
• 10G, 10D) is mounted on the said rear part (2R;
• 22R) of the cell in such a way that the said rear boundary (16;
• 36) of the shatter region (14;
• 34) is located forward of the central part (8C;
• 28C) of the said tail box (8;
• 28);
• and
• the said horizontal tail plane (5;
• 25) is swept forward (at an angle φe).