Transformable gun launched aero vehicle

• US 6,260,797 B1
• Filed: 01/13/1999
• Issued: 07/17/2001
• Est. Priority Date: 01/13/1998
• Status: Expired due to Term

• Current Assignee: Science Applications International Corporation
• Original Assignee: Science Applications International Corporation
• Inventors: Palmer, Miles R.
• Primary Examiner(s): Swiatek, Robert P.
• Application Number:
  US09/229,599
• Time in Patent Office: 916 Days
• Field of Search: 244/3.27, 244/5, 244/45.A, 244/49, 102/348, 102/501, 102/503
• US Class Current: 244/49
• CPC Class Codes: B64C 39/024 of the remote controlled vehicle type, i.e. RPV
• CPC Class Codes: B64D 1/22 Taking-up articles from earth's surface
• CPC Class Codes: B64D 37/04 Arrangement thereof in or on aircraft
• CPC Class Codes: B64D 37/06 Constructional adaptations thereof
• CPC Class Codes: B64D 37/12 jettisonable
• CPC Class Codes: B64D 39/00 Refuelling during flight filling or emptying fuel tanks B64D37/14
• CPC Class Codes: B64U 2101/00 UAVs specially adapted for particular uses or applications
• CPC Class Codes: B64U 2101/15 for conventional or electronic warfare
• CPC Class Codes: B64U 2101/30 for imaging, photography or videography
• CPC Class Codes: B64U 2201/20 Remote controls
• CPC Class Codes: B64U 30/12 Variable or detachable wings, e.g. wings with adjustable sweep
• CPC Class Codes: B64U 50/11 using internal combustion piston engines
• CPC Class Codes: B64U 50/13 using external fans or propellers
• CPC Class Codes: B64U 70/70 Launching or landing using catapults, tracks or rails launching from storage containers B64U70/50
• CPC Class Codes: B64U 70/80 Vertical take-off or landing, e.g. using rockets rotorcrafts B64U10/10; VTOL aircraft B64U10/20
• CPC Class Codes: B64U 80/84 Waterborne vehicles
• CPC Class Codes: F42B 15/00 Self-propelled projectiles or missiles, e.g. rockets; Guided missiles F42B10/00, F42B12/00, F42B14/00 take precedence; for practice or training F42B8/12; rocket torpedoes F42B17/00; marine torpedoes F42B19/00; cosmonautic vehicles B64G; jet-propulsion plants F02K

Abstract

A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration includes a cylinder forming a shell of the vehicle in the ballistic projectile configuration and wings deployable from the cylinder. The wings are capable of achieving sufficient lift for sustained flight in the aeroplane configuration. The cylinder forms a fuselage of the vehicle in the aeroplane configuration. A wing includes plural rib elements, plural inflatable tubes where each tube is braced by the plural rib elements, and a wind shell disposed around the plural inflatable tubes and the plural rib elements. The vehicle includes an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration. The vehicle includes a parachute that is reversibly deployable from a nose portion of the vehicle. The vehicle includes at least one landing rod. Each landing rod is reversibly extendable from the vehicle. A landing controller controls a first landing rod to extend after the vehicle has begun to vertically descend. The vehicle includes a folding propeller deployable from the fuselage in the aeroplane configuration. The vehicle includes a control system, and the control system includes a module to determine when the vehicle has reached a first predetermined state that defines an initiation of a transition from the ballistic projectile configuration to the aeroplane configuration.

Claims

1. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration; and

wings deployable from the cylinder, the wings being capable of achieving sufficient lift for sustained flight in the aeroplane configuration, the cylinder forming a fuselage of the vehicle in the aeroplane configuration.

2. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration; and

wings deplorable from the cylinder, the wings being one of inflatable wings and unfoldable wings, the cylinder forming a fuselage of the vehicle in the aeroplane configuration, wherein the wings are inflatable and a first wing includes;

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib elements.

3. The vehicle of claim 2, wherein:

each rib element has plural apertures disposed therethrough, each aperture corresponding to a respective tube; and

each tube is disposed in and through a corresponding aperture of each rib element.

4. The vehicle of claim 3, wherein:

before the first wing is inflated, the rib elements are disposed adjacent to each other, each tube being accordion pleat folded into corresponding apertures in the plural rib elements so that the uninflated wing is stowed within the format of the cylinder; and

after the first wing is inflated, each inflatable tube is inflated so that the tube becomes substantially rigid and the plural rib elements are spaced apart at predetermined stations along the inflated tubes so that the wing is extended.

5. The vehicle of claim 2, wherein the first wing includes an articulateable aileron.

6. The vehicle of claim 5, wherein:

each rib element has plural apertures disposed therethrough, each aperture corresponding to a respective tube;

each tube is disposed in and through a corresponding aperture of each rib element;

an aft aperture in each rib element includes a sleeve in which an aft tube of the plural tubes is rotatably disposed;

the first wing further includes plural aileron ribs fixedly attached to the aft tube; and

the vehicle further includes an aileron control mechanism to rotate the aft tube.

7. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration;

wings deployable from the cylinder, the wings being one of inflatable wings and unfoldable wings, the cylinder forming a fuselage of the vehicle in the aeroplane configuration; and

an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration.

8. The vehicle of claim 7, wherein the inflatable tail section includes an articulateable rudder.

9. The vehicle of claim 7, wherein the inflatable tail section includes an articulateable elevator.

10. The vehicle of claim 7, wherein the inflatable tail section includes an articulateable rudder and an articulateable elevator.

11. The vehicle of claim 7, wherein the wings are inflatable and a first wing includes:

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib elements.

12. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration; and

wings deployable from the cylinder, the wings being one of inflatable wings and unfoldable wings, the cylinder forming a fuselage of the vehicle in the aeroplane configuration, wherein the cylinder includes a forward cylinder part and an aft cylinder part joined at a docking joint that maintains alignment between the forward cylinder part and the aft cylinder part during gun launch compression and during rebound tension.

13. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration; and

wings deployable from the cylinder, the wings being one of inflatable wings and unfoldable wings, the cylinder forming a fuselage of the vehicle in the aeroplane configuration, wherein;

the cylinder includes a forward cylinder part and an aft cylinder part joined at a docking joint; and

the docking joint includes a rotation mechanism to rotate the forward cylinder part relative to the aft cylinder part.

14. The vehicle of claim 13, wherein the rotation mechanism includes a spring powered rotation drive to rotate the forward cylinder part relative to the aft cylinder part until a detent signals rotational alignment between the forward cylinder part with the aft cylinder part.

15. The vehicle of claim 13 further including an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration.

16. The vehicle of claim 13, wherein the wings are inflatable and a first wing includes:

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib elements.

17. The vehicle of claim 13 further including an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration, wherein the wings are inflatable and a first wing includes:

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib.

18. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration;

wings deployable from the cylinder, the cylinder forming a fuselage of the vehicle in the aeroplane configuration; and

a fuel tank that includes two spaced apart bulkhead walls sealed to an inside surface of the cylinder to define the fuel tank therebetween.

19. The vehicle of claim 18, wherein:

the fuel tank includes a displacement bladder; and

the vehicle further includes a pump mechanism to force fuel from the displacement bladder.

20. The vehicle of claim 19, wherein the cylinder includes a forward cylinder part and an aft cylinder part joined at a docking joint.

21. The vehicle of claim 20 further including an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration.

22. The vehicle of claim 20, wherein the wings are inflatable and a first wing includes:

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib elements.

23. The vehicle of claim 20 further including an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration, wherein the wings are inflatable and a first wing includes:

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib elements.

24. The vehicle of claim 19 further including an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration.

25. The vehicle of claim 19, wherein the wings are inflatable and a first wing includes:

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib elements.

26. The vehicle of claim 19 further including an inflatable tail section that is inflated while the vehicle is in the aeroplane configuration, wherein the wings are inflatable and a first wing includes:

plural rib elements;

plural inflatable tubes, each tube being braced by the plural rib elements; and

a wind shell disposed around the plural inflatable tubes and the plural rib elements.

27. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration;

wings deployable from the cylinder, the cylinder forming a fuselage of the vehicle in the aeroplane configuration; and

a parachute that is reversibly deployable from a nose portion of the vehicle while the vehicle is in the aeroplane configuration.

28. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration;

wings deployable from the cylinder, the wings being one of inflatable wings and unfoldable wings, the cylinder forming a fuselage of the vehicle in the aeroplane configuration;

at least one landing rod, each landing rod being reversibly extendable from the vehicle; and

a landing controller, the landing controller controlling a first landing rod to extend after the vehicle has begun to vertically descend.

29. The vehicle of claim 28, wherein the first landing rod includes a landing rod end and a reversibly inflatable foot, the landing controller controlling the foot of the first landing rod to inflate from the landing rod end after the first landing rod is extended to a landing length.

30. The vehicle of claim 29, further including a drive mechanism, the landing controller controlling the drive mechanism to rapidly extend all landing rods of the at least one landing rod to a launch length greater than the landing length, the rapid extension imparting sufficient vertical velocity to the vehicle to launch the vehicle.

31. The vehicle of claim 30, further comprising:

an engine; and

a propeller driven by the engine, wherein the landing controller deflates the reversibly inflatable feet and retracts the landing rods after the vehicle is launched and controls the engine to drive the propeller.

32. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration;

wings deployable from the cylinder, the cylinder forming a fuselage of the vehicle in the aeroplane configuration;

a folding propeller deployable from the fuselage in the aeroplane configuration; and

an engine coupled to the propeller.

33. A transformable gun launched aero vehicle having a ballistic projectile configuration and an aeroplane configuration, the vehicle comprising:

a cylinder forming a shell of the vehicle in the ballistic projectile configuration;

wings deployable from the cylinder, the wings being one of inflatable wings and unfoldable wings, the cylinder forming a fuselage of the vehicle in the aeroplane configuration;

a propeller deployable from the fuselage in the aeroplane configuration;

an engine coupled to the propeller; and

a control system, the control system including a module to determine when the vehicle has reached a first predetermined state, the first predetermined state defining an initiation of a transition from the ballistic projectile configuration to the aeroplane configuration.

34. The vehicle of claim 33, wherein the module to determine when the vehicle has reached the first predetermined state includes at least one of an inertial navigation sensor, an air speed sensor, an altimeter, a radio navigation sensor, an optical system sensor, a magnetic sensor, an electrostatic sensor and a timer to measure time from launch.

35. The vehicle of claim 33, further comprising a parachute deployable from an aft portion of the cylinder, the control system including a module to deploy the parachute after the vehicle has reached the first predetermined state.

36. The vehicle of claim 35, wherein the control system includes a module to deploy the wings after the parachute is deployed.

37. The vehicle of claim 36, wherein the control system includes:

a module to detach the parachute after the wings are deployed; and

a module to deploy the propeller after the parachute is detached.

38. The vehicle of claim 37, wherein the control system includes a module to operate the engine after the parachute is detached and the propeller is deployed.

39. The vehicle of claim 33, wherein the control system includes a module to deploy the propeller and the wings after the vehicle has reached the first predetermined state.

40. The vehicle of claim 39, wherein the control system includes a module to operate the engine when the propeller is deployed.

41. The vehicle of claim 33, wherein:

the vehicle includes canards; and

the control system includes a module to articulate the canards so that a flight of the vehicle is altered to a second predetermined state after the vehicle has reached the first predetermined state.

42. The vehicle of claim 41, wherein the control system includes a module to deploy the propeller and inflate the wings after the vehicle has reached the second predetermined state.