ROTARY WING ROTORCRAFT HAVING A PLURALITY OF PROPELLERS

摘要

A hybrid aircraft (1) having a fuselage (2) extending longitudinally along an anteroposterior plane of symmetry (PSYM) from the rear (4) of the aircraft (1) towards the front (3) of the aircraft (1). The aircraft (1) has a rotary wing (6) carried by the fuselage (2) of a lift surface (10) fastened to the fuselage (2) and constituted by a first half-wing (11) and a second half-wing (12). The aircraft (1) has a first propulsion unit (30) carried by the first half-wing (11) and a second propulsion unit (40) carried by the second half-wing (12). Each propulsion unit (30, 40) includes at least one tractor propeller (31, 32, 41, 42), and at least one propulsion unit has two propellers (31-32, 41-42) on the same axis, each of said propellers rotating about an axis of rotation (AX) that is offset transversely from said anteroposterior plane of symmetry (PSYM).

主权项

1. A hybrid aircraft having a fuselage extending longitudinally along an anteroposterior plane of symmetry (PSYM) from the rear of the aircraft towards the front of the aircraft, said aircraft having a rotary wing carried by the fuselage, said aircraft being provided with a lift surface fastened to the fuselage and constituted by a first half-wing and a second half-wing situated on either side of the fuselage, said aircraft having a first propulsion unit carried by the first half-wing and a second propulsion unit carried by the second half-wing, wherein each propulsion unit includes at least one tractor propeller, and wherein at least one propulsion unit has two propellers on the same axis, each of said propellers rotating about an axis of rotation (AX) that is offset transversely from said anteroposterior plane of symmetry (PSYM), the first propulsion unit including both a first propeller and a second propeller on the same axis arranged back to back and suitable in a normal thrust mode of operation respectively for generating thrust (F1) towards the front of the aircraft and thrust (F2′) directed towards the rear of the aircraft, this first propulsion unit always presenting one propeller that generates no thrust during hovering flight.