US Patent 7905449 Multi-engine aircraft

A multi-engine aircraft includes at least two first engines and a third engine located at a rear part of the fuselage, containing rear tail sections, along a vertical longitudinal plane of symmetry of the fuselage. The rear tail sections define a channel which is symmetrical with respect to the longitudinal plane of the fuselage. The third engine is arranged in the plane of symmetry of the channel corresponding to the longitudinal plane and is mounted on the upper part of the fuselage in a raised manner and in front of the tail sections, so that the outlet of the third engine is situated substantially at the inlet of the channel defined by the tail sections.