Claims
- 1. An aerodynamic lifting device disposed upstream of a primary lifting surface; said aerodynamic lifting device comprising a plurality of teeth arranged essentially in tandem, each of said teeth being individually disposed in a plane that intersects said primary lifting surface.
- 2. An aerodynamic lifting device disposed upstream of a primary lifting surface as specified in claim 1 wherein said primary lifting surface is a tail.
- 3. An aerodynamic lifting device disposed upstream of a primary lifting surface as specified in claim 2 wherein said tail is a butterfly tail.
- 4. An aerodynamic lifting device disposed upstream of a primary lifting surface as specified in claim 1 wherein at least one of said teeth is controllably retractable.
- 5. A lift-producing configuration that comprises:
- (a) a primary lifting surface and
- (b) an aerodynamic lifting device disposed upstream of said primary lifting surface; said aerodynamic lifting device comprising a plurality of teeth arranged essentially in tandem, each of said teeth being individually disposed in a plane that intersects said primary lifting surface.
- 6. A lift-producing configuration as specified in claim 5 wherein said primary lifting surface is a tail.
- 7. A lift-producing configuration as specified in claim 6 wherein said tail is a butterfly tail.
- 8. A lift-producing configuration as specified in claim 5 wherein at least one of said teeth is controllably retractable.
Parent Case Info
This application claims the benefit of U.S. Provisional Application No.: 60/025,806, filed Aug. 28, 1996.
ORIGIN OF THE INVENTION
The invention described herein was jointly made by an employee of the United States Government and in the performance of work under a NASA Contract and is subject to the provisions of Section 305 of the National Aeronautics and Space Act 1958, as amended, Public Law 85-568 (72 Stat. 435; 42 U.S.C. 2457).
US Referenced Citations (9)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2421524 |
May 1974 |
DEX |
3132959 |
Mar 1983 |
DEX |
Non-Patent Literature Citations (3)
Entry |
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J.E. Lamar et al., "Aerodynamic features of designed strake-wing configurations", AIAA-81-1214, Jun. 23-25, 1981, pp. 1-10. |
S. B. Kern, "A numerical investigation of vortex flow control through small geometry modifications at the strake/wing junction of a cropped double-delta wing", AIAA-92-0411, Jan. 6-9, 1992, pp. 1-16. |