Body tab yaw deflector

Patent metadata

Field	Value
Publication number	US-10370085-B2
Application number	US-201715479654-A
Country	US
Kind code	B2
Filing date	Apr 5, 2017
Priority date	May 27, 2016
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

In one embodiment, an apparatus includes a first deflector configured to couple to a shaft of an aircraft. The first deflector may form part of a top surface of the aircraft when in a first closed position. The apparatus may further include a second deflector configured to couple to the shaft and form part of a bottom surface of the aircraft when in a second closed position. The first deflector and the second deflector may be configured to be positioned at a junction of a body of the aircraft and a wing of the aircraft. The first deflector and the second deflector may be configured to simultaneously pivot from the closed positions to respective first and second open positions upon actuation of the shaft.

First claim

What is claimed is:

1. A tailless aircraft, comprising:
a body;
a swept back wing positioned adjacent to the body, the wing comprising:
a bottom surface;
a root proximate to the body; and
a tip opposed to the root;

a shaft positioned in the tailless aircraft at a swept back angle; and
a yaw control device coupled to the shaft and positioned proximate to a junction where the body and the wing meet, the yaw control device comprising:
a first deflector forming a portion of a top surface of the tailless aircraft when configured in a closed position, all of the first deflector positioned on the body proximate to the junction when in a closed position; and
a second deflector forming a portion of the bottom surface of the tailless aircraft when configured in a closed position, all of the second deflector positioned on the body proximate to the junction when in a closed position; and
a hinge connected to the first deflector, the second deflector, and the shaft, the hinge coupling the first deflector to the shaft and the second deflector to the shaft;

wherein the first deflector and the second deflector are configured to simultaneously pivot from the closed position to an open position upon actuation of the shaft such that the hinge causes the first deflector to pivot about an axis of rotation through a center of the shaft upwards from the top surface and the hinge causes the second deflector to pivot about an axis of rotation through a center of the shaft and downwards from the bottom surface.

2. An aircraft, comprising:
a body;
a wing positioned adjacent to the body, the wing comprising:
a bottom surface;
a root proximate to the body; and
a tip opposed to the root; and

a yaw control device positioned proximate to a junction where the body and the wing meet, the yaw control device comprising:
a first deflector configured to couple to the shaft, forming a portion of a top surface of the aircraft when configured in a closed position, all of the first deflector positioned on the body proximate to the junction when in a closed position;
a second deflector configured to couple to a shaft, forming a portion of the bottom surface of the aircraft when configured in a closed position, all of the second deflector positioned on the body proximate to the junction when in a closed position; and
a hinge connected to the first deflector, the second deflector, and the shaft, the hinge coupling the first deflector to the shaft and the second deflector to the shaft;
wherein the first deflector and the second deflector are configured to simultaneously pivot about an axis of rotation through a center of the shaft from the closed positions to respective first and second open positions.

3. The aircraft of claim 2 , wherein a length of the first deflector is approximately equal to a length of the second deflector.

4. The aircraft of claim 2 , wherein the junction where the yaw control device is positioned has a structural depth that is greater than a structural depth of the wing.

5. The aircraft of claim 2 , wherein the yaw control device is positioned offset from a centerline of the aircraft and outboard of an engine bay.

6. The aircraft of claim 2 , wherein the first deflector and the second deflector are each configured to open such that the first and the second deflectors each have an angle of incidence to an airflow.

7. The aircraft of claim 2 , further comprising:
a second wing on an opposite side of the aircraft, the second wing positioned, adjacent to the body; and
a second yaw control device positioned proximate to a junction where the body and the second wing meet, wherein the first and second yaw control devices are positioned symmetrically about a centerline of the aircraft.

8. The aircraft of claim 2 , wherein the yaw control device is positioned at a distance from a trailing edge control device, wherein the yaw control device is positioned inboard from the trailing edge control device.

9. The aircraft of claim 2 , wherein the wing comprises a leading edge and a trailing edge, and the first deflector is positioned away from the leading edge such that the leading edge comprises a first continuous edge when the first deflector is in the first open position and the second deflector is positioned away from the trailing edge such that the trailing edge comprises a second continuous edge when the second deflector is in the second open position.

10. The aircraft of claim 2 , wherein the aircraft comprises a tailless aircraft.

11. The aircraft of claim 2 , further comprising a shaft positioned within the aircraft, the shaft configured to actuate the first deflector and the second deflector of the yaw control device.

12. The aircraft of claim 2 , wherein the yaw control device is positioned on an aft shelf of the body of the aircraft.

13. The aircraft of claim 2 , wherein the first deflector pivots upwards from the top surface of the body and the second deflector pivots downwards from the bottom surface of the body.

14. An apparatus, comprising:
a first deflector configured to couple to a shaft of an aircraft and form part of a top surface of a body of the aircraft when in a first closed position; and
a second deflector configured to couple to the shaft and form part of a bottom surface of the body when in a second closed position;
a hinge connected to the first deflector, the second deflector, and the shaft, the hinge coupling the first deflector to the shaft and the second deflector to the shaft;
wherein:
the first deflector and the second deflector are configured to be positioned at a junction of the body of the aircraft and a wing of the aircraft, all of the first deflector positioned on the body proximate to the junction when in a closed position and all of the second deflector positioned on the body proximate to the junction when in a closed position and
the first deflector and the second deflector are configured to simultaneously pivot about an axis of rotation through a center of the shaft from the closed positions to respective first and second open positions upon actuation of the shaft.

15. The apparatus of claim 14 , wherein a length of the first deflector is approximately equal to a length of the second deflector.

16. The apparatus of claim 14 , wherein the junction where the yaw control device is positioned has a structural depth that is greater than a structural depth of the wing.

17. The apparatus of claim 14 , wherein the yaw control device is positioned onset from a centerline of the aircraft and outboard of an engine bay.

18. The apparatus of claim 14 , wherein the first deflector and the second deflector are each configured to open such that the first and the second deflectors each have an angle of incidence to an airflow.

19. The apparatus of claim 14 , wherein the yaw control device is positioned at a distance from a trailing edge control device, wherein the yaw control device is positioned inboard from the trailing edge control device.

20. The apparatus of claim 14 , wherein the yaw control device is configured to be positioned on an aft shelf of the body of the aircraft.

Assignees

• Lockheed Corp

Inventors

• Dorsett Kenneth Merle

Classifications

• B64C9/323

  associated with wings · CPC title

• B64C5/08

  mounted on, or supported by, wings · CPC title

• B64C9/326

  associated with fuselages · CPC title

• B64C5/10

  adjustable · CPC title

• Y02T50/44

  Cross-Sectional Technologies · mapped topic