Class 244/35A - Compressible flow

Subclass of Class 244 - Aeronautics and astronautics
No. of patents: 34
Last issue date: 06/16/2009

Number	Title	Issue Date
7546977	Passive aerodynamic sonic boom suppression for supersonic aircraft An aircraft capable of supersonic flight comprises a body portion including a fuselage, a wing, and an engine nacelle mounted below the wing. The aircraft may also include a high-mounted aft, tail. The area/lift distribution of the body portion is tailored to reduce...	06/16/2009
7416155	Canard position and dihedral for boom reduction and pitch/directional control A supersonic aircraft comprises a fuselage extending forward and aft, wings coupled to lateral sides of the fuselage, and canards coupled to lateral sides of the fuselage forward of the wings. The individual canards are configured to generate shocks that wrap around...	08/26/2008
7311287	Methods for incorporating area ruled surfaces in a supersonic aircraft A vertical stabilizer is configured to minimize the rate of change of cross-sectional area distribution of the vehicle or device to which the vertical stabilizer is mounted. One or more “waisted” areas can be included at the tip and/or the root of the vertical s...	12/25/2007
7252263	Design methods and configurations for supersonic aircraft Methods for configuring aircraft that may be implemented to integrate aircraft sonic boom constraint requirements with the design process for a supersonic aircraft, for example, to reconcile a target sonic boom constraint with the internal layout and balance of the ...	08/07/2007
7246770	Aircraft with rotatable leading edge of fuselage and wings A rotatable leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be rotated from an undeflected or retracted position adjacent to the fuselage and wings to a deflected or extended position. In the extended position, the leading e...	07/24/2007
7216835	Aircraft with extendable leading edge of fuselage and wings An extendable leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be extended from a retracted position adjacent to the fuselage and wings to an extended position. In the extended position, the leading edge increases lift of the...	05/15/2007
7204454	Aircraft with articulated leading edge of fuselage and wings An articulated leading edge for the fuselage and wings of an aircraft is disclosed. The leading edge may be moved from an undeflected or retracted position adjacent to the fuselage and wings to a deflected or extended position. The leading edge includes fuselage and...	04/17/2007
7070146	Aircraft thickness/camber control device for low sonic boom An aircraft thickness/camber control device mounts to the lower surface of a airfoil configuration, for example on a fuselage, and extends along a longitudinal axis. The device, when deployed, generates expansions ahead of compressions generated by off-design condit...	07/04/2006
7000870	Laminar flow wing for transonic cruise In combination, an aircraft wing and fuselage, comprising the wing having camber at or near the wing leading edge which has blunted sharpness and low sweep angle, and the fuselage having indentation along the wing side thereof, and lengthwise of the fuselage. ...	02/21/2006
7000869	Cross section for a supersonic airplane A fuselage for an airplane comprising a first side of the fuselage having a first curvature; and a second side of the fuselage having a second curvature; wherein the first curvature is different from the second curvature at a substantially vertical cross section of ...	02/21/2006
6959896	Passive aerodynamic sonic boom suppression for supersonic aircraft An aircraft capable of supersonic flight comprises a body portion including a fuselage, a wing, and an engine nacelle mounted below the wing. The aircraft may also include a high-mounted aft, tail. The area/lift distribution of the body portion is tailored to reduce...	11/01/2005
6942178	Mach weighted area ruling for supersonic vehicles A method and design system for a low drag vehicle includes determining a plurality of configurations for at least two different Mach numbers that minimize the rate of change of cross-sectional area of the vehicle in accordance with the Sears-Haack minimum drag body....	09/13/2005
6802474	Advanced high turning compressor airfoils In a high turning airfoil capable of being suitably applied to each of blades constituting a blade row of an axial flow-type compressor, both of an intrados generating a positive pressure and an extrados generating a negative pressure exist on one side of a chord li...	10/12/2004
6732974	Tiperon A control surface for an air vehicle (e.g., an aircraft, rocket, or missile) is useful for flight control at both subsonic and supersonic speeds. The control surface defines the outboardmost tip of a flight structure (e.g., a wing, tail or other stabilizer) of the a...	05/11/2004
6634594	Hypersonic waverider variable leading edge flaps A hypersonic aircraft producing a shock wave during hypersonic flight. The shape of the shock wave changes depending upon changes in Mach speed and angle of attack, the latter of which can vary significantly with flight dynamic pressure. The aircraft incl...	10/21/2003
6565038	Supersonic propellers for aircrafts The present invention provides one pair or two pairs of horizontal propellers incorporated on the two opposite sides of an aircraft, which propellers by their rotating external blades create through their frontal shell opening a very strong frontal depres...	05/20/2003
6513754	Transonic flow shockwave position stabilizer A stabilizer suitable for stabilizing a shock formed during transonic velocity is presented. The stabilizer comprises an inboard end, an outboard end that forms an airfoil, which is positioned opposite the inboard end and, an upper surface that extends be...	02/04/2003
6464171	Leading edge channel for enhancement of lift/drag ratio and reduction of sonic boom The leading edges of wings, nose assemblies, tails, fins, struts, and other components of aircraft, atmospheric entry vehicles and missiles in which the leading edge is blunted and the flight Mach number is supersonic, are provided with passive airflow ch...	10/15/2002
5897076	High-efficiency, supersonic aircraft A supersonic flight aircraft having a longitudinally forwardly extending fuselage having an axis in the direction of flight, and a wing, and which comprises the wing extending generally laterally relative to the axis, and having a leading edge angled forw...	04/27/1999
5875998	Method and apparatus for optimizing the aerodynamic effect of an airfoil A method and an apparatus are provided for optimizing the aerodynamic effect of the airfoil of an aircraft by defined changes in camber. The method includes the following steps: a. determining the flow for the flight condition caused by the change in camb...	03/02/1999
5836549	Airfoil leading edge with cavity A jet airplane capable of supersonic flight has airfoils with leading edges. Each leading edge has a cavity which extends for substantially the entire length of the airfoil. The leading edge also has a cover which is approximately the same size as the cav...	11/17/1998
5730391	Universal fluid-dynamic body for aircraft and watercraft A body configuration for improving the fluid-dynamic performance efficiency of aircraft and watercraft comprises a generally conical upper segment (54) and a generally conical lower segment (56) that are joined at a common base plane (53), achieved by inv...	03/24/1998
5518204	High-efficiency, supersonic aircraft A supersonic flight aircraft having a longitudinally forwardly extending axis in the direction of flight, and a wing, comprising a wing extending generally laterally relative to the axis, and having a leading edge angled forward or rearwardly relative to ...	05/21/1996
5358156	Supersonic aircraft shock wave energy recovery system This invention outlines excitation means to transform the linear momentum of an underwing energized jet into rotational form in a selective manner to provide an asymmetric shear layer to increase compression wave reflection from the forward undersurface o...	10/25/1994
5348256	Supersonic aircraft and method A supersonic aircraft having highly swept subsonic leading edge portions of the wings provided with boundary layer control suction slots. When the airplane is operating at high angles of attack under circumstances where noise is objectionable, air is draw...	09/20/1994
5322242	High efficiency, supersonic aircraft A supersonic flight aircraft having a longitudinally forwardly extending axis in the direction of flight, and a wing, comprising a wing extending generally laterally relative to the axis, and having a leading edge angled forward or rearwardly relative to ...	06/21/1994
5314142	Wing root aerofoil for forward swept wings A swept forward wing for aircraft comprising an inner wing portion and an outer wing portion in which the upper surface curvature of the inner wing portion is designed to create three dimensional flow thereover to manipulate the sweep of the isobars and p...	05/24/1994
5039032	High taper wing tip extension A highly tapered wing tip extension added to the tip of an existing swept, trapezoidal airplane wing for reducing high speed drag significantly. A smaller, highly swept, extension does not require a leading edge device to protect against low speed stall. ...	08/13/1991
4718619	Manoeuverable supercritical wing section The manoeuverable supercritical wing section with a t/c ratio of 8-9%, flexible at 70%-80% chord by means of a flap to induce expansion thereover, and perhaps having a minimum curvature region on the upper surface just ahead of the flexing region....	01/12/1988
4598886	Double parasol, favorable interference airplane An aircraft intended to fly at supersonic Mach mnumbers is disclosed. The aircraft utilizes a double parasol wing arrangement, with a power plant nacelle located under the wing on each side of the fuselage. Each nacelle is located at the focus of a reflec...	07/08/1986
4582276	Lifting shock wave cancellation module An aerodynamic structure which when included into the design of a supersonic aircraft provides the aircraft with a higher lift/drag ratio than has been obtainable previously in supersonic aircraft design. In a preferred embodiment, the aerodynamic structu...	04/15/1986
4412664	Family of airfoil shapes for rotating blades This invention is an airfoil which has particular application to the blade or blades of rotor aircraft such as helicopters and aircraft propellers. The airfoil thickness distribution and camber are shaped to maintain a near zero pitching moment coefficien...	11/01/1983
4405102	Variable wing position supersonic biplane A wing structure for an aircraft designed for both STOL and supersonic flight conditions includes a biplanar wing arrangement in which the lower wing section is staggered behind the upper wing section and the lower wing section is designed for both transl...	09/20/1983
4153223	Limited-range projectile having a flat trajectory There is disclosed a limited range, high-speed projectile with a flat trajectory. The range is limited by controlling the air resistance of the projectile, so that the air resistance increases markedly when the projectile speed drops below a certain value...	05/08/1979

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Class 244/35A - Compressible flow