Aircraft having pod assembly jettison capabilities

• US 10,343,773 B1
• Filed: 01/12/2019
• Issued: 07/09/2019
• Est. Priority Date: 07/01/2016
• Status: Active Grant

• Current Assignee: Textron Innovations Incorporated (Textron Inc)
• Original Assignee: Bell Helicopter Textron Incorporated (Textron Inc)
• Inventors: McCullough, John Richard, Oldroyd, Paul K.
• Primary Examiner(s): O'Hara, Brian M
• Application Number:
  US16/246,474
• Time in Patent Office: 178 Days
• CPC Class Codes: B64C 29/02 having its flight directional axis vertical when grounded
• CPC Class Codes: B64C 39/024 of the remote controlled vehicle type, i.e. RPV
• CPC Class Codes: B64C 39/06 having disc- or ring-shaped wings
• CPC Class Codes: B64D 1/08 the articles being load-carrying devices
• CPC Class Codes: B64D 25/12 Ejectable capsules
• CPC Class Codes: B64U 10/16 with five or more distinct rotor axes, e.g. octocopters
• CPC Class Codes: B64U 10/25 Fixed-wing aircraft VTOL aircraft B64U10/20
• CPC Class Codes: B64U 2201/00 UAVs characterised by their flight controls
• CPC Class Codes: B64U 2201/20 Remote controls
• CPC Class Codes: B64U 30/10 Wings
• CPC Class Codes: B64U 30/20 Rotors; Rotor supports
• CPC Class Codes: B64U 50/11 using internal combustion piston engines
• CPC Class Codes: B64U 50/19 using electrically powered motors
• CPC Class Codes: G05D 1/0011 associated with a remote control arrangement

Abstract

An aircraft includes a flying frame and a pod assembly that is selectively attached to the flying frame. The pod assembly has an aerodynamic outer shape. The flying frame includes an airframe having first and second wings, a propulsion system attached to the airframe and a flight control system operably associated with the propulsion system. The flying frame has a vertical takeoff and landing mode in which the first wing is forward of the pod assembly and the second wing is aft of the pod assembly. The flying frame has a forward flight mode in which the first wing is below the pod assembly and the second wing is above the pod assembly. The flying frame is operable for flight both with the pod assembly and without the pod assembly attached thereto. The flying frame is operable to jettison the pod assembly during flight.

Claims

1. An aircraft comprising:

a flying frame including an airframe having first and second wings, a propulsion system attached to the airframe and a flight control system operably associated with the propulsion system; and

a pod assembly having an aerodynamic outer shape and selectively attachable to the flying frame,

wherein, the flying frame has a vertical takeoff and landing mode in which the first wing is forward of the pod assembly and the second wing is aft of the pod assembly;

wherein, the flying frame has a forward flight mode in which the first wing is below the pod assembly and the second wing is above the pod assembly;

wherein, the flying frame is operable for flight both with the pod assembly and without the pod assembly attached thereto; and

wherein, the flying frame is operable to jettison the pod assembly during flight.

2. The aircraft as recited in claim 1 wherein the first and second wings have a plurality of pylons extending therebetween.

3. The aircraft as recited in claim 1 wherein the propulsion system further comprises a distributed propulsion system including at least two propulsion assemblies coupled to the first wing and at least two propulsion assemblies coupled to the second wing.

4. The aircraft as recited in claim 1 wherein the flying frame is operated responsive to at least one of onboard pilot flight control, remote flight control, autonomous flight control and combinations thereof in a manned flight mode.

5. The aircraft as recited in claim 1 wherein the flying frame is operated responsive to at least one of remote flight control, autonomous flight control and combinations thereof in an unmanned flight mode.

6. The aircraft as recited in claim 1 wherein the flight control system is operable to land the flying frame proximate to the pod assembly if the pod assembly is jettisoned.

7. A method of operating an aircraft comprising:

providing a flying frame including an airframe having first and second wings, a propulsion system attached to the airframe and a flight control system operably associated with the propulsion system;

selectively attaching a pod assembly having an aerodynamic outer shape to the flying frame such that the flying frame has a first flight configuration with the pod assembly attached thereto and a second flight configuration without the pod assembly attached thereto;

lifting the pod assembly into the air in a vertical takeoff and landing mode of the aircraft in which the first wing is forward of the pod assembly and the second wing is aft of the pod assembly;

transitioning the aircraft between the vertical takeoff and landing mode and a forward flight mode in which the first wing is below the pod assembly and the second wing is above the pod assembly;

transporting the pod assembly in the forward flight mode of the aircraft; and

jettisoning the pod assembly from the flying frame during flight.

8. The method as recited in claim 7 wherein the lifting, transitioning and transporting steps further comprise commanding the flying frame responsive to at least one of onboard pilot flight control, remote flight control, autonomous flight control and combinations thereof in a manned flight mode.

9. The method as recited in claim 7 wherein the lifting, transitioning and transporting steps further comprise commanding the flying frame responsive to at least one of remote flight control, autonomous flight control and combinations thereof in an unmanned flight mode.

10. The method as recited in claim 7 further comprising landing the flying frame proximate to the pod assembly after jettisoning the pod assembly responsive to at least one of remote flight control, autonomous flight control and combinations thereof.

11. An aircraft comprising:

a flying frame including an airframe having first and second wings, a propulsion system attached to the airframe and a flight control system operably associated with the propulsion system; and

a pod assembly having an aerodynamic outer shape and selectively attachable to the flying frame,

wherein, the flying frame has a vertical takeoff and landing mode in which the first wing is forward of the pod assembly and the second wing is aft of the pod assembly;

wherein, the flying frame has a forward flight mode in which the first wing is below the pod assembly and the second wing is above the pod assembly; and

wherein, the flying frame is operable to jettison the pod assembly during flight.

12. The aircraft as recited in claim 11 wherein the first and second wings have a plurality of pylons extending therebetween.

13. The aircraft as recited in claim 11 wherein the propulsion system further comprises a distributed propulsion system including at least two propulsion assemblies coupled to the first wing and at least two propulsion assemblies coupled to the second wing.

14. The aircraft as recited in claim 11 wherein the flying frame is operated responsive to at least one of onboard pilot flight control, remote flight control, autonomous flight control and combinations thereof in a manned flight mode.

15. The aircraft as recited in claim 11 wherein the flying frame is operated responsive to at least one of remote flight control, autonomous flight control and combinations thereof in an unmanned flight mode.

16. The aircraft as recited in claim 11 wherein the flight control system is operable to land the flying frame proximate to the pod assembly if the pod assembly is jettisoned.

17. A method of operating an aircraft comprising:

providing a flying frame including an airframe having first and second wings, a propulsion system attached to the airframe and a flight control system operably associated with the propulsion system;

selectively attaching a pod assembly having an aerodynamic outer shape to the flying frame;

lifting the pod assembly into the air in a vertical takeoff and landing mode of the aircraft in which the first wing is forward of the pod assembly and the second wing is aft of the pod assembly;

transitioning the aircraft between the vertical takeoff and landing mode and a forward flight mode in which the first wing is below the pod assembly and the second wing is above the pod assembly;

transporting the pod assembly in the forward flight mode of the aircraft; and

jettisoning the pod assembly from the flying frame during flight.

18. The method as recited in claim 17 wherein the lifting, transitioning and transporting steps further comprise commanding the flying frame responsive to at least one of onboard pilot flight control, remote flight control, autonomous flight control and combinations thereof in a manned flight mode.

19. The method as recited in claim 17 wherein the lifting, transitioning and transporting steps further comprise commanding the flying frame responsive to at least one of remote flight control, autonomous flight control and combinations thereof in an unmanned flight mode.

20. The method as recited in claim 17 further comprising landing the flying frame proximate to the pod assembly after jettisoning the pod assembly responsive to at least one of remote flight control, autonomous flight control and combinations thereof.