Patent ID: 8398022
Filing Date: 2013-03-19
Classification: B64C,B64D

Abstract:
1. An airplane comprising a fuselage and at least one wing fixed to the fuselage between a forward end of said fuselage and a rear end of said fuselage, the fuselage comprising a longitudinal axis directed in a direction X and an exterior surface determining an envelope shape determining geometries of cross sections perpendicular to the longitudinal axis in successive positions offset along the longitudinal axis, each cross section having a maximum width l in a direction Y in a horizontal plane of an aircraft reference system and a maximum height h in a direction Z in a vertical plane in the airplane reference system, wherein: the fuselage comprises a central region of the fuselage situated between a forward region comprising a flight deck at the forward end of the fuselage and a rear region situated toward the rear end of the fuselage, wherein the rear region comprises a tail; the maximum width l of the cross sections of the fuselage evolves substantially continuously between the forward end and the rear end; the maximum height h of the fuselage along the X direction is substantially constant in the central region; each cross section of the fuselage in the central region has approximately a rectangular shape with the maximum width l larger than the maximum height h to give a flattened appearance to said fuselage; the maximum height h of the cross sections of the forward region evolves in the X direction substantially continuously between the maximum height of the central region in a connecting section where the forward region meets said central region and a reduced end height at the forward end of the fuselage; and the maximum height h of the cross sections of the rear region evolves in the X direction substantially continuously between the maximum height of the central region in a connecting section where the rear region meets said central region and a reduced end height at the rear end of the fuselage.