Matches 201 - 250 out of 508 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
5522566 Fighter aircraft having low aerodynamic drag and low radar signature configuration  
A fighter aircraft achieves low aerodynamic drag and radar signature without sacrificing flight performance through a unique arrangement of the main weapons bay, the auxiliary weapons bays, and the...
5522337 Underwater vehicle inflatable housing configuration and method  
An underwater vehicle has a generally longitudinally extending housing terminating in at least one blunt end. Adjacent to and inboard of the blunt end of the longitudinally extended housing there...
5505409 Supercavitating airframe  
A method is described for reducing drag in airframes or airfoils. The method includes inducing cavitation in the boundary layer separating the airframe or foil skin and the air currents passing...
5496001 T-38 aircraft modified with an F-5 wing  
A T-38 trainer aircraft that is modified to have the wings of an F-5 fighter aircraft. The F-5 wings have leading edge flaps which increase aircraft maneuverability and allow the plane to be landed...
5480110 Transport plane with stub tail  
A transport plane with stub tail, which is preferably propelled by two jet engines. The intake air is fed to the engines directly integrated in the fuselage tail via a diffusor, the diffusor is a...
5449136 Fairing for obtaining steady stabilization effects  
A fairing for providing vortex stabilization effects to a solid submerged in a fluid with relative movement thereof between the solid and the fluid. A cavity is provided in the fairing for...
5445095 Polymer/riblet combination for hydrodynamic skin friction reduction  
A process for reducing skin friction and inhibiting the effects of liquid turbulence in a system involving the flow of a liquid along the surface of a body, e.g. a marine vehicle, includes...
5443230 Aircraft wing/nacelle combination  
An aircraft wing 18 and nacelle 24 combination includes a double cambered pylon 28 extending between the wing and the nacelle to support an aircraft engine 22. The pylon includes an airfoil 30...
5437421 Multiple electromagnetic tiles for boundary layer control  
The boundary layer of a fluid travelling in a mean-flow direction relative to a surface of a wall of a body is controlled by generating in the fluid a magnetic field B having flux lines along the...
5409287 Aerodynamic device  
Several embodiments of aerodynamic devices for improving the drag coefficient and reducing the wind resistance of a body moving through the air such as a motorcycle and/or a helmet worn by a rider...
5402964 Interference with vortex formation and control of fluid flow to reduce noise and change flow stability  
Apparatus for the interference and manipulation of vortex formation and control of fluid flow to reduce noise and increase flow stability is provided. A specific embodiment is directed to a...
5378524 Friction reducing surface and devices employing such surfaces  
An improved aerodynamic surface for the exterior of vehicles moving through a gas and vehicles employing such improved surfaces. The improved surface comprises a matrix of dimples or depressions...
5374013 Method and apparatus for reducing drag on a moving body  
A method of and apparatus for reducing drag produced by relative air movement on a moving body are disclosed. The method includes the steps of modifying a rear air pressure behind a rear of the...
5372336 Folding wing assembly  
A folding wing assembly for use on an aircraft is disclosed. The folding wing assembly includes inboard and outboard wing sections which are pivotally interconnected such that the outboard wing...
5368258 Arrangement for maintaining laminar air flow over gaps in aircraft engine nacelle surfaces  
A system for eliminating turbulence in aerodynamic surfaces, such as engine nacelles, resulting from air passing over joints and gaps in the aerodynamic surface. Basically, this system includes a...
5354017 Method for controlling turbulence  
Controlling turbulence in a medium caused by injection of energy into the medium at relatively large scale with consequent dissipation of energy at relatively small scale, is achieved by...
5346745 Elastic micro-fabricated surface layer for reducing turbulence and drag on an object while it moves through a fluid medium  
A surface for use in connection with an object in relative motion through a luid medium includes a plurality of surface elements arranged in rows on the surface, with surface elements of each row...
5340054 Suppressor of oscillations in airframe cavities  
The oscillations found to occur in the cavities of an structural frame moving through a fluid are substantially eliminated by the adoption of perturbation elements located at the leading edge of...
5303882 Corner vortex suppressor  
A corner vortex forms at the corners of a square or rectangular wind tunnel or water tunnel and disrupts the flow and creates excessive drag, turbulence, noise and wake. The corners defined by a...
5299762 Injection-cooled hypersonic leading edge construction and method  
A leading edge construction for reducing drag on an airfoil, the construction includes a relatively thin solid plate extending forwardly from the air foil, the plate having an exposed top surface...
5297765 Turbine engine nacelle laminar flow control arrangement  
A laminar flow control arrangement for use in a nacelle for an aircraft turbine engine. The nacelle has a microporous outer skin in the area where air flow over the skin is to be maintained in...
5289997 Apparatus and method for reducing drag on bodies moving through fluid  
In order to increase energy efficiency by reducing the drag experienced by bodies moving through a fluid medium, such as tractor-trailers, structure is incorporated in the rear surface or panel of...
5282560 Luggage rack with wind noise reducer  
A luggage rack (14) of the type suitable for installation on the roof (12) of an automotive vehicle (10) is improved through the addition of a mechanism for reducing the noise generated by wind...
5265830 Trailing edge splitter  
A plate projecting in an aft direction from the blunt trailing edge of a wing. The plate extends across the span of the trailing edge, and may be either planar or curved in the spanwise direction....
5263661 Sonic boom attenuator  
The Sonic Boom Attenuator is a device designed for use with supersonic aircraft wherein a laser beam is shone down the leading edge of a short, rigid, straight, thin wing, heating thus rarefying...
5263667 Perforated wing panel with variable porosity  
The present invention involves laminar flow control for reducing drag on a body moving through a fluid. A skin is provided through which fluid in the boundary layer is drawn. The skin includes a...
5236155 Method of reducing drag in aerodynamic systems  
In the present method boundary layer thickening is combined with laminar flow control to reduce drag. An aerodynamic body is accelerated enabling a ram turbine on the body to receive air at...
5222698 Control of boundary layer flow  
Turbulence in the boundary layer of a flow of air across a surface is controlled by sucking air from the surface. A plurality of turbulence detectors are located in the surface downstream of...
5213287 Wing modification method and apparatus  
A modification kit for the DeHavilland DH-2 Beaver and the DH-3 Otter aircraft. A replacement leading edge is provided for the wing together with replacement droop wing tips and a wing fence. A...
5209434 Aerodynamic fairing for reducing drag of structural openings  
The named fairing reduces the aerodynamic drag of structural openings, increases the flow rate of a vent in a moving body, reduces the accumulation of toxic fumes in a cavity on a moving body and...
5197696 Leading edge canopy  
A canopy with an improved leading edge structure is provided. The canopy will include a top and bottom surface connected at their respective trailing edges. A plurality of rib members will extend...
5171623 Drag reducing surface depressions  
Fluid friction of a body moving through air or water is reduced by means of a plurality of symmetrical depressions on the surface of the body. The symmetrical depressions are closely spaced but not...
5156362 Jet engine fan nacelle  
A jet engine fan nacelle which maintains attached flow during engine windmilling. The nacelle includes a cylindrical airfoil body having an inner surface. A plurality of vortex generators are...
5156353 Aircraft pylon  
An aircraft propulsion system includes at least one pusher propeller mounted to a nacelle mounted to the aircraft by a pylon which produces a wake which impinges upon the propeller. The wake from...
5141182 Gas turbine engine fan duct base pressure drag reduction  
An aircraft is provided with an aircraft base pressure drag reduction apparatus including apparatus for ducting boundary layer air on board an aircraft wherein the air produces ram air drag,...
5133516 Drag reduction article  
A conformable drag reduction article is provided having a patterned surface capable of reducing drag resistance by fluid flowing thereover.
5133519 Drag reduction method and surface  
Rearward facing microsteps (11, 12, 20, 21) are provided in a wall surface (10, 10a, 10b, 19, 19a, 19b) to reduce shear friction drag caused by wall surface bounded turbulent shear flows....
5131610 Front end structure of a booster rocket mounted on the main body of a launcher  
A front end structure of a booster rocket for a launcher is disclosed. The front end structure comprises a curved support arm mechanically connecting a front fastening device to the front end of...
5114099 Surface for low drag in turbulent flow  
A nonsmooth surface of an object in a fluid flowstream permits a reduction of turbulent drag. The surface shape is designed to approximate a minimal surface and satisfies the equation...
5114100 Anti-icing system for aircraft  
An anti-icing system for leading edges of an aircraft. Hot compressed air is discharged from a cavity behind the leading edge, through a multitude of small holes in the leading edge skin into the...
5108044 Shroud-fin integration shelf for a helicopter empennage structure  
A shroud-fin integration shelf for a helicopter empennage structure that includes a shroud embodying a ducted fan antitorque device, a vertical stabilizer contiguous with the shroud, and a...
5106037 Umbrella seal for aircraft  
An improved seal assembly positionable to cover a gap between aircraft panels. The seal assembly includes an umbrella seal and primary nodes extending therefrom into the gap. The seal assembly also...
5102069 Aircraft wing pylon extensions for minimized aerodynamic penalties  
A wing mounted pylon for an aircraft in which the pylon can be maintained in a desired maximum thickness consistent with structural and accessory and equipment space requirement but with...
5096142 Folding internal cover  
An aerodynamic fairing seal for use on a variable incident airfoil which protrudes through a structural opening in an aircraft such that the fairing covers the opening as the airfoil is moved...
5094412 Flaperon system for tilt rotor wings  
The present invention provides an aircraft wing (10) having a main portion (20) with a trailing edge (20b) and a movable flaperon (22) hingedly secured at the trailing edge. A movable flaperon seal...
5090352 Bow foil  
Vessels with improved performance capability and methods for improving such performance and foils which may be associated with a vessel for providing this improved performance capability....
5071092 Fairing arrangements for aircraft  
An externally mounted aircraft fairing arrangement for mounting on an aircraft wing that has a hingedly displaceable control surface, such as an aileron, includes a first fairing portion (11) on...
5069402 Alleviation of aircraft fuselage form drag  
An aircraft having an upswept tail section fuselage includes a single pair of large vortex generators mounted in the vicinity of the break in the fuselage ahead of or at the beginning of the tail...
5069397 Stabilized aero-optical free shear layer interface  
In an aero-optical interface for an aircraft optical aperture, the separation of the upstream boundary layer from the edge of the aperture creates a region of turbulance which persists downstream...
5065960 Gap filler for advanced aircraft to reduce radar detectability  
Improved channel members positionable over and in the gaps between aircraft panels. Each channel member includes a gap filler including a horizontal portion extending across the gap and a vertical...
Matches 201 - 250 out of 508 < 1 2 3 4 5 6 7 8 9 10 11 >