Patent ID: 8196860
Filing Date: 2012-06-12
Classification: B64D,Y02T

Abstract:
1. Aircraft of reduced environmental impact, having a longitudinal axis and comprising: at least one engine which comprises at least one propeller positioned behind said engine and able to exert thrust on said aircraft and which is mounted at the rear of said aircraft, on the back thereof, the axis of said engine being at least substantially parallel to said longitudinal axis of the aircraft, said engine and said propeller being such that, should they shatter, their debris would follow paths contained in a shatter region aligned with said axis of the engine and delimited, transversely to the latter axis, by a front boundary and by a rear boundary; and a cell the rear part of which comprises a horizontal tail plane and two vertical tail planes positioned one at each end of said horizontal tail plane, said rear part of the cell comprising a tail box supporting said horizontal tail plane and said propeller being positioned vertically in line with 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: said engine is mounted on said rear part of the cell in such a way that the rear boundary of the shatter region is located forward of the central part of said tail box and the forward boundary is located forward of the leading edge of said horizontal tail plane; and said horizontal tail plane is swept forward at an angle.