Multirotor joined-wing aircraft with VTOL capabilities

A multirotor aircraft that is adapted for vertical take-off and landing, comprising a fuselage, a tail boom that is provided with a vertical fin, a thrust producing units assembly that is provided for producing thrust in operation, at least one lower wing which comprises a lower wing inboard section that is connected to the fuselage and a lower wing outboard section that forms a lower wing tip, and at least one upper wing which is connected to the vertical fin and which forms an upper wing tip,

• wherein the at least one upper wing is joined to the at least one lower wing in a joined-wing configuration,
• wherein a first thrust producing unit of the thrust producing units assembly is non-tiltably mounted to the at least one upper wing and provided for generating lift at least during vertical taking-off and landing, the first thrust producing unit being arranged near a leading edge of the at least one upper wing, and
• wherein a second thrust producing unit of the thrust producing units assembly is non-tiltably mounted to the at least one lower wing and provided for generating lift at least during vertical taking-off and landing, the second thrust producing unit being arranged near a trailing edge of the at least one lower wing,
• wherein at least one additional thrust producing unit of the thrust producing units assembly is fixedly inclined with respect to a roll axis of the multirotor aircraft for generating forward thrust at least during cruise operation of the multirotor aircraft,
• wherein the at least one additional thrust producing unit is non-tiltably mounted to the at least one upper wing and arranged near a trailing edge of the at least one upper wing.

A multirotor aircraft that is adapted for vertical take-off and landing, comprising a fuselage, a tail boom that is provided with a vertical fin, a thrust producing units assembly that is provided for producing thrust in operation, at least one lower wing which comprises a lower wing inboard section that is connected to the fuselage and a lower wing outboard section that forms a lower wing tip, and at least one upper wing which is connected to the vertical fin and which forms an upper wing tip,

• wherein the at least one upper wing is joined to the at least one lower wing in a joined-wing configuration,
• wherein a first thrust producing unit of the thrust producing units assembly is non-tiltably mounted to the at least one upper wing and provided for generating lift at least during vertical taking-off and landing, the first thrust producing unit being arranged near a leading edge of the at least one upper wing, and
• wherein a second thrust producing unit of the thrust producing units assembly is non-tiltably mounted to the at least one lower wing and provided for generating lift at least during vertical taking-off and landing, the second thrust producing unit being arranged near a trailing edge of the at least one lower wing,
• wherein the lower wing inboard section and the lower wing outboard section delimit a boarding area of the multirotor aircraft, and
• wherein the boarding area is equipped with at least one boarding step that is adapted to support accessing of a cabin formed within the fuselage, wherein the at least one boarding step is arranged near a leading edge of the at least one lower wing, and wherein the first thrust producing unit defines an associated rotor disc in operation that is arranged at a predetermined safety distance from the at least one boarding step.

A multirotor aircraft that is adapted for vertical take-off and landing, comprising a fuselage, a tail boom that is provided with a vertical fin, a thrust producing units assembly that is provided for producing thrust in operation, at least one rearward swept lower wing which comprises a lower wing inboard section that is connected to the fuselage and a lower wing outboard section that forms a lower wing tip, and at least one forward-swept upper wing which is connected to the vertical fin and which forms an upper wing tip,

• wherein the at least one upper wing is joined to the at least one lower wing in a joined-wing configuration,
• wherein a first thrust producing unit of the thrust producing units assembly has a propeller with a vertical propeller rotational axis which is non-tiltably mounted to the at least one upper wing and provided for generating lift at least during vertical taking-off and landing, the first thrust producing unit being arranged near a leading edge of the at least one upper wing, and
• wherein a second thrust producing unit of the thrust producing units assembly has a propeller with a vertical propeller rotational axis which is non-tiltably mounted to the at least one lower wing and provided for generating lift at least during vertical taking-off and landing, the second thrust producing unit being arranged near a trailing edge of the at least one lower wing.