Convertible compounded rotorcraft

Patent metadata

Field	Value
Publication number	US-9475575-B2
Application number	US-201414564775-A
Country	US
Kind code	B2
Filing date	Dec 9, 2014
Priority date	Oct 26, 2012
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

A compound rotorcraft including a rotary wing aircraft having a fuselage and at least one rotor and a fixed-wing aircraft coupled to the rotary wing aircraft, wherein the rotary wing aircraft can fly on the rotor or the fixed-wing aircraft, and wherein the fixed-wing aircraft is detachable from the rotary wing aircraft to fly independently.

First claim

What is claimed is:

1. A compound rotorcraft comprising:
a rotary wing aircraft comprising a fuselage and at least one rotor; and
a fixed-wing aircraft releasably coupled to said fuselage of said rotary wing aircraft, said fixed-wing aircraft comprising a wing and a propulsion drive,
wherein said compound rotorcraft flies on said rotor, on said propulsion drive, or on both said rotor and said propulsion drive,
wherein said fixed-wing aircraft is detachable from said rotary wing aircraft such that said fixed-wing aircraft and said rotary wing aircraft fly independent of one another, and
wherein said fixed-wing aircraft is a tail-sitting vertical takeoff and landing aircraft.

2. The compound rotorcraft of claim 1 wherein said rotary wing aircraft comprises a docking bay disposed about a lower midpoint of an underside of said fuselage, and wherein said fixed-wing aircraft is at least partially received in said docking bay.

3. The compound rotorcraft of claim 2 wherein said rotary wing aircraft further comprises a docking trapeze to engage said fixed-wing aircraft.

4. The compound rotorcraft of claim 3 wherein said docking trapeze comprises:
a motor;
an actuator mechanism driven by said motor, said actuator mechanism being downwardly extendable from said docking bay and upwardly retractable within said docking bay; and
a latching mechanism disposed at a lower end of said actuator mechanism to releasably engage the fixed-wing aircraft.

5. The compound rotorcraft of claim 4 wherein said fixed-wing aircraft comprises a latching port to receive said latching mechanism.

6. The compound rotorcraft of claim 1 wherein said rotary wing aircraft comprises at least one docking port having a mechanical docking point and electrical connection to mechanically and electrically couple said fixed-wing aircraft to said rotary wing aircraft.

7. The compound rotorcraft of claim 6 wherein said fixed-wing aircraft comprises at least one docking port connector having a mechanical docking connector and electrical connector to mechanically and electrically connect to said docking port.

8. The compound rotorcraft of claim 1 wherein said fixed-wing aircraft comprises:
a center body;
a left wing extending outwardly from said center body;
a right wing extending outwardly from said center body away from said left wing;
a left proprotor mounted on said left wing; and
a right proprotor mounted on said right wing.

9. The compound rotorcraft of claim 8 wherein said left wing and said right wing are rotatably attached to said center body and translatable between a generally horizontal position and a generally vertical position.

10. The compound rotorcraft of claim 1 wherein said fixed-wing aircraft is a flying wing.

11. The compound rotorcraft of claim 1 wherein said fixed-wing aircraft is an unmanned aerial vehicle.

12. The compound rotorcraft of claim 1 wherein the fixed-wing aircraft is a manned aerial vehicle.

13. The compound rotorcraft of claim 1 wherein said fixed-wing aircraft comprises a payload to augment said rotary wing aircraft.

14. A method for compounding a rotary wing aircraft comprising a fuselage, at least one rotor and a docking bay disposed on an underside of said fuselage, said method comprising the steps of:
providing a fixed-wing aircraft comprising at least one wing and a propulsion drive, wherein said fixed-wing aircraft is a tail-sitting vertical takeoff and landing aircraft and flies independent of said rotary wing aircraft; and
releasably coupling said fixed-wing aircraft to said docking bay of said rotary wing aircraft to form a compound aerial platform, wherein said compound aerial platform flies on said rotor, on said propulsion drive, or on both said rotor and said propulsion drive.

15. The method of claim 14 further comprising detaching said fixed-wing aircraft from said rotary wing aircraft, wherein said detached fixed-wing aircraft and said rotary wing aircraft fly independent of one another.

16. The method of claim 14 wherein said releasably coupling step comprises engaging said fixed-wing aircraft with a docking trapeze.

17. The method of claim 16 wherein said docking trapeze comprises:
a motor;
an actuator mechanism driven by said motor, said actuator mechanism being downwardly extendable from said docking bay and upwardly retractable within said docking bay; and
a latching mechanism disposed at a lower end of said actuator mechanism to releasably engage the fixed-wing aircraft.

18. The method of claim 17 wherein said fixed-wing aircraft comprises a latching port to receive said latching mechanism.

19. The method of claim 14 wherein said fixed-wing aircraft is an unmanned aerial vehicle.

20. A compound rotorcraft comprising:
a rotary wing aircraft comprising a fuselage and at least one rotor; and
a fixed-wing aircraft releasably coupled to said fuselage of said rotary wing aircraft, said fixed-wing aircraft comprising:
a center body;
a left wing and a right wing rotatably attached to said center body and translatable between a generally horizontal position and a generally vertical position; and
a propulsion drive coupled to said left wing and said right wing,

wherein said compound rotorcraft flies on said rotor, on said propulsion drive, or on both said rotor and said propulsion drive, and
wherein said fixed-wing aircraft is detachable from said rotary wing aircraft such that said fixed-wing aircraft and said rotary wing aircraft fly independent of one another.

Assignees

• Boeing Co

Inventors

• Rossi Glenn T

Classifications

• B64C27/26 Primary

  characterised by provision of fixed wings · CPC title

• B64C29/02

  having its flight directional axis vertical when grounded · CPC title

• B64C37/02

  Flying units formed by separate aircraft (towing B64D3/00; aircraft transported by aircraft B64D5/00; air-refuelling B64D39/00) · CPC title

• B64C27/28

  with forward-propulsion propellers pivotable to act as lifting rotors · CPC title

• B64C29/0033

  the propellers being tiltable relative to the fuselage · CPC title