High performance forward swept wing aircraft
AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorsDavid G. Koenig, Kiyoshi Aoyagi, Michael R. Dudley, Susan B. Schmidt
Life of this patent
Estimating the term…
Abstract
A high performance aircraft capable of subsonic, transonic and supersonic speeds employs a forward swept wing planform and at least one first-and-second-solution ejector located on the inboard section of the wing. A high degree of flow control on the inboard sections of the wing is achieved along with improved maneuverability and control of pitch, roll and yaw. Lift loss is delayed to higher angles of attack than in conventional aircraft. In one embodiment the ejectors may be advantageously positioned spanwise on the wing while the ductwork is kept to a minimum.
Claims9
A high performance aircraft comprising:
- a fuselage;
- forward swept wings connected to said fuselage;
- at least one engine having an inlet for generating a pressurized gas;
- thrust augmenting ejector means having an inlet located apart from said at least one engine inlet and responsive to said pressurized gas, said ejector means inlet located above and on an inboard portion of said wings for augmenting thrust, enhancing circulating lift, and stall control, and said ejector means including a number of nozzles arranged along the span of the wings, a variable-area inlet and a variable-area outlet.
A high performance aircraft comprising:
- a fuselage;
- forward swept wings connected to said fuselage;
- at least one engine having an inlet for generating a pressurized gas;
- and
- thrust augmenting ejector means having an inlet located apart from said at least one engine inlet and responsive to said pressurized gas, said ejector means inlet located above and on an inboard portion of said wings for augmenting thrust, enhancing circulating lift, and stall control, and vertical tail fins for providing directional stability and steering control, said vertical tail fins for providing directional stability and steering control, said vertical tail fins being mounted on said ejector means.
A high performance aircraft comprising:
- a fuselage;
- forward swept wings connected to said fuselage;
- at least one engine having an inlet for generating a pressurized gas;
- and
- thrust augmenting ejector means having an inlet located apart from said at least one engine inlet and responsive to said pressurized gas, said ejector means inlet located above and on an inboard portion of said wings for augmenting thrust, enhancing circulating lift, and stall control;
- and
- two ejectors operable in both first and second solution modes, said ejectors being located above said wings adjacent to said ejector means and forward of said ejector means, said ejectors being positioned symmetrical to the longitudinal axis of said aircraft, and said ejectors each having a single linear array of nozzles, a variable-area inlet, and a variable-area outlet.
Dependencies are inferred from the claim text.