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6824092 |
Aircraft tail configuration for sonic boom reduction
A supersonic aircraft comprises a wing having upper and lower surfaces and extending from a leading edge to a trailing edge and at least two engine nacelles coupled to the lower surface of the wing...
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6824109 |
Lift adjusting device for aircraft
The invention utilizes a computer-controlled moving band, typically on an airplane, to increase the apparent speed and therefore the lift of any body moving through a fluid. The invention will...
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6824108 |
Active drag modulation system and method
A vehicle traveling through an environmental media such as air experiences drag. The drag is actively modulated by energy beams which may either increase or decrease the drag. The energy beams may...
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6821090 |
Gust alleviation/flutter suppression device
An active control device is disclosed comprising an array of actively controlled oscillating air jets disposed on an aircraft structure. In a preferred embodiment, the device senses parameters...
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6805325 |
Surface plasma discharge for controlling leading edge contamination and crossflow instabilities for laminar flow
The present invention provides a system and method for controlling leading edge contamination and crossflow instabilities for laminar flow on aircraft airfoils that is lightweight, low power,...
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6789769 |
Flexible airflow separator to reduce aerodynamic noise generated by a leading edge slat of an aircraft wing
A slat is selectively extended from a main wing body, with a concave rear surface of the slat facing a convex forward nose surface of the wing body, with a slat gap therebetween. At least one row...
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6786451 |
Aircraft landing gear having an independent low-noise fairing system
The invention relates to an aircraft landing gear having a retractable leg, in which the leg comprises a strut with a telescopic rod, the strut being hinged to a structure of the aircraft in order...
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6772977 |
Aircraft with multipurpose lower decks and associated methods of manufacture
Transport aircraft, such as a transonic transport aircraft, having fuselages with multipurpose lower decks. In one embodiment, the fuselage is an “area-ruled” fuselage having a first fuselage...
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6766980 |
Prop wash deflector
A structure for increasing the cargo carrying capacity of a helicopter when the cargo is suspended below the helicopter chassis is described. The structure includes a depending skirt surrounding...
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6739554 |
Aircraft weapons bay acoustic resonance suppression system
A aircraft weapons bay acoustic resonance suppression system for reducing undesirable acoustic resonances within an open weapons bay of an aircraft in flight is described. The system includes a rod...
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6729577 |
Tail-braced wing aircraft and configurations for achieving long supersonic range and low sonic boom
The present invention provides improvements for supersonic aircraft, joined-wing aircraft and sonic boom reduction, separately and in combination, for long range supersonic cruise aircraft with...
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6715717 |
Method and apparatus for inducing controlled vortices to reduce afterbody drag
A method and apparatus of creating vortices via vortex controllers, wherein the vortices are capable of entraining high-energy surrounding flow to induce a series of powerful longitudinal vortices...
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6688557 |
Airflow diverter for aircraft
An air diverter fixedly positioned to the underside of the nose of an aircraft and forming an integral part therewith having a bull nose form for diverting the airflow around the nose of the...
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6682022 |
Boundary layer control of aerodynamic airfoils
Boundary layer control of a structural element in fluid stream is achieved by the following operations: providing in such structural element at least one region equipped with micro porous...
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6647550 |
Racing swimsuit
The present invention relates to a racing swimsuit and provides a racing swimsuit capable of reducing surface friction resistance and frictional resistance of turbulence in water. The present...
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6612524 |
Forebody vortex alleviation device
A forebody 10 for an aeronautical vehicle 12 is provided. The forebody 10 includes an exterior wall 14 having a first half 16 and a second half 18 . The first half 16 has a first...
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6581870 |
Method and apparatus for reducing pressure and temperature on the front of a missile at ultrasonic speed
In a method and apparatus for reducing pressure and temperature on the front of a missile at ultrasonic speed a spike with a spherical, ellipsoidal, or drop-shaped mounted is used on the front end....
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6570333 |
Method for generating surface plasma
A method for generating a discharge plasma which covers a surface of a body in a gas at pressures from 0.01 Torr to atmospheric pressure, by applying a radio frequency power with frequencies...
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6565035 |
Apparatus and method for forming an air curtain for use with an aircraft
A system and method for providing an air curtain for impeding the entry of dust, dirt, debris, smoke, insects and other airborne particulate matter into an interior area of an aircraft without the...
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6554228 |
Aerodynamic fairing
An aerodynamic fairing which is mountable on a strap on solid rocket motor (SRM) is configured such that in flight aero-acoustic effects are significantly reduced with regard to the launch vehicle...
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6536350 |
Stagnation pressure activated fuel release mechanism for hypersonic projectiles
A propulsion-assisted projectile has a body, a cowl forming a combustion section and a nozzle section. The body has a fuel reservoir within a central portion of the body, and a fuel activation...
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6527221 |
Shock wave modification method, apparatus, and system
A shock wave in a fluid is modified by emitting energy to form an extended path in the fluid; heating fluid along the path to form a volume of heated fluid expanding outwardly from the path; and...
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6520455 |
Method and apparatus for reducing turbulent drag
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected...
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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...
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6484971 |
Control of flow separation and related phenomena on aerodynamic surfaces
Method and apparatus for suppressing fluid flow separation from a surface of a body during flow of a fluid along the surface of the body. At least one barrier member (for example, at least one tab)...
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6474604 |
Mobius-like joining structure for fluid dynamic foils
This invention, though preferably applied to aircraft structure, has application to foil-bearing devices in general, creating structure somewhat similar to the structure of a mobius band surface...
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6471157 |
Device and method for reducing aircraft noise
A noise abatement device that is positioned adjacent to a body. The noise abatement device generally includes tabs or cavities which thicken the shear layer created by fluid flow over, around, or...
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6471477 |
Jet actuators for aerodynamic surfaces
A jet actuator positioned within a hollow space in an aerodynamic structure for controlling the flow over an aerodynamic surface thereof includes a movable member linearly displaced by a voice coil...
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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...
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6464167 |
Vehicle with vertical wings and a stabilizing torque system of jets to use fluid energy for forward motion
Disclosed is a fluid vehicle having one or more vertical wings in contact with the fluid for generating a forward motion. This fluid vehicle also has a stabilizing torque system for generating jets...
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6457672 |
Propulsion nacelle alignment system for tilt-rotor aircraft
The propulsion nacelles of a tilt-rotor type aircraft are adjustably positioned on the aircraft wings under control of a programmed actuator in response to error signals produced by change in angle...
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6446904 |
Aircraft weapons bay high frequency acoustic suppression apparatus
An aircraft weapons bay high frequency acoustic suppression apparatus is disclosed. The apparatus includes an extendable spoiler retractably received within an aircraft weapons bay. An injector...
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6427948 |
Controllable vortex generator
A controllable vortex generator for reducing aerodynamic drag when vortex generation is not desired. The vortex generator includes a fin having a fixed forward portion and an aft portion which is...
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6425553 |
Piezoelectric actuators for circulation controlled rotorcraft
A dynamic fluid control surface, e.g., a rotor blade of a helicopter, having a blowing slot extending the entire length of the leading and trailing edges of the dynamic fluid control surface, an...
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6422518 |
Aircraft with means for a premature breakdown of the wing vortex pair
For a premature breakdown of a wing vortex pair +/−Γ M behind an aircraft in flight ( 1 ) comprising a symmetry plane ( 7 ), two wings ( 3 ), a fuselage ( 2 ) and a horizontal tail plane (HTP)...
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6409126 |
Passive flow control of bluff body wake turbulence
The present invention provides an apparatus and system for controlling turbulence generated by medium passing about a bluff body disposed on a generally planar flow surface. An aft fairing, of a...
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6409123 |
Aircraft wing structure profiled suspension pylon
According to the invention, the suspension pylon ( 3 ) comprises a fairing for reducing the local loss in lift ( 8 ) and its maximum-width section ( 7 ) is located at the front of the concave and...
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6390418 |
Tangentially directed acoustic jet controlling boundary layer
The nozzle of an acoustic jet directs high momentum flux gas particles essentially tangentially into the boundary layer of the flow in a diffuser, an engine air inlet, a jet engine gas flow path or...
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6378802 |
Enhance aerodynamic profile
The enhanced aerodynamic profile of the invention consists of a profile consisting of three sections: a front or leading edge of two sides or plates forming an acute dihedral angle with the vertex...
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6375118 |
High frequency excitation apparatus and method for reducing jet and cavity noise
An active noise suppression apparatus and method for reducing jet engine noise and buffeting. A plurality of resonant cavities are formed in a structural member disposed on or adjacent to a jet...
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6357374 |
Method and apparatus for increasing the effectiveness and efficiency of multiple boundary layer control techniques
In an apparatus and method for ejecting an additive for significantly reducing the drag of a first fluid moving relative to a wall, a drag-reducing substance is conditioned by causing a second...
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6345791 |
Streamwise variable height riblets for reducing skin friction drag of surfaces
A series of parallel riblets extend from a smooth, aerodynamic surface for reducing the skin friction drag of the surface an airstream flows around it. The riblets extend longitudinally along the...
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6340134 |
Wing combination for drag reduction, aircraft including such a wing, and a method of reducing the drag of an existing aircraft
An apparatus and method are provided for reducing the drag of an aircraft wing. Many modern high speed aircraft have a low aspect ratio wing generating significant induced drag. The invention...
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6332593 |
Method and apparatus for reducing turbulent drag
The systems and methods of the invention include systems and techniques for controlling a turbulent boundary layer flow with a transverse traveling wave, oscillating at certain selected...
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6302360 |
Vortex generation for control of the air flow along the surface of an airfoil
Apparatus for generating vortices to control the flow of air across a airfoil of an aircraft includes a series of pressure active regions arranged along the leading edge of the airfoil. The...
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6297486 |
Base drag reducing device
A device for reducing base drag on cylindrical rear truncated objects moving in a fluid, caused by the shedding of vortices at the base of the object. The device consists of ring shaped winglets...
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6296202 |
Aircraft weapons bay acoustic suppression apparatus
An aircraft weapons bay acoustic suppression apparatus is disclosed. The apparatus reduces or eliminates acoustic resonance within an open cavity of an aircraft such as a weapons bay of an aircraft...
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6293497 |
Airplane with unswept slotted cruise wing airfoil
Slotted cruise airfoil technology allows production of a substantially unswept wing that achieves the same cruise speed as today's conventional jet airplanes with higher sweep. This technology...
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6284175 |
Method for reducing reflected radio frequency electromagnetic radiation
A highly conductive thermoplastic elastomer (TPE) gap filler having superior durability and EMI shielding properties. According to the preferred embodiment, the TPE comprises graphite fiber having...
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6276636 |
Gas or fluid de-organizers for moving objects
Tabs are placed on a moving object in order to de-organize the fluid or air, passing over the moving object. The tabs can be any type of protrusion on the body of the moving object. The placement,...
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