公开(公告)号：US20210362851A1

公开(公告)日：2021-11-25

申请号：US16879070

申请日：2020-05-20

Applicant: Textron Innovations Inc.

Inventor： John Richard McCullough ,  Andrew Thomas Carter ,  Sung Kyun Kim ,  Matthew John Hill ,  Lynn Francis Eschete

IPC: B64C29/02 ,  B64C39/08

Abstract: An aircraft operable to transition between thrust-borne lift in a VTOL orientation and wing-borne lift in a biplane orientation. The aircraft has an airframe including first and second wings with a fuselage extending therebetween. A propulsion assembly is coupled to the fuselage and includes a counter-rotating coaxial rotor system that is tiltable relative to the fuselage to generate a thrust vector. A flight control system is configured to direct the thrust vector. In the VTOL orientation, the first wing is forward of the fuselage, the second wing is aft of the fuselage and the coaxial rotor system is configured to provide thrust in line with a yaw axis of the aircraft. In the biplane orientation, the first wing is below the fuselage, the second wing is above the fuselage and the coaxial rotor system is configured to provide thrust in line with a roll axis of the aircraft.

公开(公告)号：US11479352B2

公开(公告)日：2022-10-25

申请号：US16879070

申请日：2020-05-20

Applicant: Textron Innovations Inc.

Inventor： John Richard McCullough ,  Andrew Thomas Carter ,  Sung Kyun Kim ,  Matthew John Hill ,  Lynn Francis Eschete

IPC: B64C29/02 ,  B64C39/08 ,  B64C27/52

Abstract: An aircraft operable to transition between thrust-borne lift in a VTOL orientation and wing-borne lift in a biplane orientation. The aircraft has an airframe including first and second wings with a fuselage extending therebetween. A propulsion assembly is coupled to the fuselage and includes a counter-rotating coaxial rotor system that is tiltable relative to the fuselage to generate a thrust vector. A flight control system is configured to direct the thrust vector. In the VTOL orientation, the first wing is forward of the fuselage, the second wing is aft of the fuselage and the coaxial rotor system is configured to provide thrust in line with a yaw axis of the aircraft. In the biplane orientation, the first wing is below the fuselage, the second wing is above the fuselage and the coaxial rotor system is configured to provide thrust in line with a roll axis of the aircraft.

公开(公告)号：US11440644B2

公开(公告)日：2022-09-13

申请号：US16797342

申请日：2020-02-21

Applicant: Textron Innovations Inc.

Inventor： Kent E. Donaldson ,  Kyle Smolarek ,  Lynn Francis Eschete

IPC: B64C23/06 ,  B64C27/32 ,  B64C21/10

Abstract: An exemplary aircraft includes a wing positioned below a vertical rotor, the wing extending to an outboard end, and an anhedral winglet extending from the outboard end through an angular transition to a tip, the anhedral winglet having an external surface exposed to the rotor downwash and the external surface is contoured to generate local wing lift in response to the rotor downwash.

公开(公告)号：US12139251B2

公开(公告)日：2024-11-12

申请号：US17883148

申请日：2022-08-08

Applicant: Textron Innovations Inc.

Inventor： Kent E. Donaldson ,  Kyle Smolarek ,  Lynn Francis Eschete

IPC: B64C23/06 ,  B64C21/10 ,  B64C27/32

Abstract: An exemplary aircraft includes a wing positioned below a vertical rotor, the wing extending to an outboard end, and an anhedral winglet extending from the outboard end through an angular transition to a tip, the anhedral winglet having an external surface exposed to the rotor downwash and the external surface is contoured to generate local wing lift in response to the rotor downwash.