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7578483 |
Conformable skin element system for active vortex control
Conformable skin elements provide active vortex control. The skin element is mounted on a surface and acts like a pressure transducer and flow modifier. A micro-processor is coupled to the skin...
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7334760 |
Flow control device and method of controlling flow
The present invention relates to a flow control device and more particularly to reactive self-contained modular flow control device with deployable flow effectors. The present invention further...
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7290738 |
Dual jet emerging lift augmentation system for airfoils and hydrofoils
Separate upper and lower plenums within an aircraft airfoil or a sea hydrofoil conduct fluid under different pressures to nozzle slots from which jets emerge to augment lift in accordance with...
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7226015 |
Aircraft and missile forebody flow control device and method of controlling flow
The present invention relates to a forebody flow control system and more particularly to aircraft or missile flow control system for enhanced maneuverability and stabilization at high angles of...
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7159825 |
Process and device for the optimization of the deflection of the spoiler flaps of an aircraft in flight
A process and device for optimization of deflection of spoiler flaps of an aircraft in flight may, in real time, compute an incidence potential available to be consumed by the spoiler flaps without...
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7146299 |
Adjustable simulation vehicle capabilities
The present invention is a system and method for easily adjusting flight characteristics of a simulated aircraft. The system allows a user to adjust commanded pitch, roll or yaw values or steady...
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6892989 |
Method for reducing the drag of blunt-based vehicles by adaptively increasing forebody roughness
A method for reducing drag upon a blunt-based vehicle by adaptively increasing forebody roughness to increase drag at the roughened area of the forebody, which results in a decrease in drag at the...
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6843452 |
Variable trailing edge geometry and spanload control
A mobile platform lift increasing system includes at least one wing-shaped structure having a leading edge, a trailing edge and a chord length perpendicularly measurable between the leading and...
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6824099 |
Brake systems for aircraft wing flaps and other control surfaces
Systems and methods for holding high lift and drag devices and other aircraft control surfaces in position. In one embodiment, a system for moving a trailing edge flap between a retracted position...
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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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6816823 |
Process for designing flight controllers
Process for designing flight controllers, in which first for the rigid airplane and then for the elastic airplane the damping and the phase delay for each excitation frequency is determined, and...
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6751530 |
Aerial vehicle controlled and propelled by oscillatory momentum generators and method of flying a vehicle
A vehicle capable of flight including at least one wing including at least one oscillatory momentum generator mounted therein. A thrust force from the oscillatory momentum generator is directed...
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6722616 |
Method of lift control of aircraft and system therefor
The present invention is structured such that lift control apparatus such as flaps and flaperons operate in association with elevator operation performed by a pilot. Lift control conforming to...
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6682021 |
System and method for actively manipulating and controlling fluid flow over a surface
The present invention provides a system and method for actively manipulating and controlling aerodynamic or hydrodynamic fluid flow over a surface. More specifically, the present invention provides...
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6659398 |
Two-brake torque limiting device
The apparatus of the invention enables a two-brake torque limiting device to fix the position of one or more flaps and/or slats on an airplane wing when unplanned or abnormal conditions exist. The...
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6636320 |
Fiber optic tufts for flow separation detection
Flow separation detectors and, more particularly feedback sensor arrangements consisting of optical fiber tufts adapted to provide for the measurement of surface aerodynamic flow phenomena through...
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6483436 |
Method and apparatus for sensing skews and disconnects of adjacent movable components
A sensor detects skewed adjacent movable component. The sensor may be used to detect harmful skews of aircraft control surfaces, such as slats or flaps on aircraft wings, which may be caused by an...
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6416017 |
System and method for compensating structural vibrations of an aircraft caused by outside disturbances
Method for compensating structural vibrations of an aircraft caused by wind blasts and buffeting in an aircraft in flight includes the steps of: detecting the structural vibrations by measurement...
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6394397 |
Lifting surface with active variable tip member and method for influencing lifting surface behavior therewith
A tip member is movable mount at the outboard end of a main lifting member such as a wing or rotor blade. The main lifting member at least at the outboard end has an internal cavity defined therein...
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6390417 |
Drag control system for flying machine, process for estimating drag of flying machine, boundary layer control system, and boundary layer control process
The thrust T of an airplane is estimated by a thrust estimating device, and the motion state (the speed, the angular speed, the attitude angle and the elevation angle) of the airplane is detected...
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6375127 |
Active control surface modal system for aircraft buffet and gust load alleviation and flutter suppression
The present invention relates to an Active Control Surface Modal (ACSM) device that generates unsteady aerodynamic damping to alleviate aeroelastic structural instability, vibration and dynamic...
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6341247 |
Adaptive method to control and optimize aircraft performance
A measurement-based method to control and optimize the performance of an airborne vehicle. The stability and control of the vehicle is modified to induce a response in the airborne vehicle as...
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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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6273371 |
Method for interfacing a pilot with the aerodynamic state of the surfaces of an aircraft and body interface to carry out this method
Method, apparatus and sensors for directly interfacing a pilot (1) with the aerodynamic state of the surfaces of an aircraft, in particular allowing the direct sensorization of the conditions of...
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6253126 |
Method and apparatus for flight parameter monitoring and control
Methods and apparatus are disclosed for three-dimensional flight control based generally upon measuring and comparing actual air pressures at or near various surfaces of an aircraft during flight....
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6234751 |
Oscillating air jets for reducing HSI noise
Porous surfaces on an aerodynamic structure driven with positive and negative pressures are used in an active control system for attenuating shock waves responsible for high-speed impulsive (HSI)...
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6134485 |
System and method for measuring physical parameters using an integrated multisensor system
A system and method for analyzing physical parameters of flight data at a plurality of discrete locations about a surface of an aircraft includes a multisensor system having an array of belts. Each...
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6113036 |
Boundary layer control system
A boundary layer control apparatus including a duct having a streamlined shape which is mounted in spaced apart relation upwind from the wing and extending generally parallel to the leading edge of...
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6092990 |
Oscillating air jets for helicopter rotor aerodynamic control and BVI noise reduction
An active control system for reducing blade-vortex-interaction (BVI) noise generated by a rotor blade. The active control system includes a pressure sensor assembly, a device for changing a lift...
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6082679 |
Active system for early destruction of trailing vortices
An active control method and apparatus for encouraging the early destruction of trailing vortices formed by a lifting body having at least two control surfaces on each side and creating multiple...
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6068328 |
Vehicular boundary layer control system and method
A vehicular boundary layer control system utilizing a series of external perforation arrays and suction sources controlled by a digital signal processor or microprocessor. Each array of...
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6002972 |
Method and apparatus for measuring forces based upon differential pressure between surfaces of an aircraft
A method and apparatus for measuring the lift generated by airfoils of an aircraft. This real-time analysis is accomplished by measuring a differential pressure between the upper and lower lift...
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5941481 |
Device for interactive turbulence control in boundary layers
An electro-magnetohydrodynamic (EMHD) transducer that detects and manipuls the velocity of a near-wall fluid below a turbulent boundary layer includes a magnetic field generator to provide a...
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5927656 |
Wing leading edge flap and method therefor
A leading edge flap system for an airplane includes a flap which is rotated about a single hinge point between (i) a retracted position, (ii) an intermediate extended position for high speed...
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5908176 |
In-flight adaptive performance optimization (APO) control using redundant control effectors of an aircraft
Practical application of real-time (or near real-time) Adaptive Performance Optimization (APO) is provided for a transport aircraft in steady climb, cruise, turn descent or other flight conditions...
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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...
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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...
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5798465 |
Method for actively damping global flow oscillations in separated unstable flows and an apparatus for performing the method
The method for damping global flow oscillations (20a.x, 20b.x) in a flowing medium in the region of an unstable flow (10) separating itself from at least one boundary surface (11, 12) is comprised...
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5796612 |
Method for flight parameter monitoring and control
The present invention relates to a method for three-dimensional flight control based generally upon measuring and comparing actual air pressures at or near various surfaces of an aircraft during...
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5772155 |
Aircraft wing flaps
A wing assembly has a wing and at least one slender delta shaped flap with sharp leading edges pointing into the flow direction and deployable above the upper wing surface close to the quarter line...
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5737222 |
Apparatus for measuring lift forces based upon differential pressure between surfaces of an aircraft
An apparatus for measuring the lift generated by airfoils of an aircraft. This real-time analysis is accomplished by measuring a differential pressure between the upper and lower lift surfaces of...
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5697468 |
Spoiler system for ground effect vehicles
A ground effect vehicle wherein a flap coupled to a spoiler is provided on the wings in order to break lift when the craft starts to leave ground effect travel in order to avoid flight out of...
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5598991 |
Method and apparatus for detecting oscillatory phenomena indicative of airflow separation
A method and apparatus for detecting oscillatory phenomena indicative of airflow separation or sensor common mode oscillatory failure is disclosed. The oscillations of a differential pressure...
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5562596 |
Method and apparatus for controlling the flow of a medium
A quantification of approximate entropy is determined on a set of data by comparing subsets of the data. The comparison reveals the regularity and stability of similar patterns amongst subsets of...
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5457630 |
System for onboard lift analysis and apparatus therefor
A method and apparatus for measuring the lift generated by airfoils of an aircraft. This real-time analysis is accomplished by measuring a differential pressure between the upper and lower lift...
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5398885 |
Discrete distributed sensors and system for spatial sensing
A sensor has a sensing region that responds to a surface property by producing an output signal. The sensor has a spatially distributed shape or sensitivity so that the output decreases away from a...
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5366176 |
Feedback-stabilized aerodynamically overbalanced lifting/control surface for aircraft
An airfoil of an aircraft is provided with one or more control flaps which are pivotally mounted on the airfoil in an aeromechanically unstable manner. The trailing edges of the control flaps are...
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5359663 |
Method and system for suppressing noise induced in a fluid medium by a body moving therethrough
A method of detecting the onset of turbulence in connection with a body mng through a fluid medium and reducing turbulence noise in acoustic sensor systems carried thereby. First, the body is...
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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...
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5218863 |
Instrumentation system for determining flow stagnation points
A method and portable microcomputer-based system for determining flow field stagnation points are disclosed. The apparatus uses hot film sensors wrapped around the leading edge of an airfoil to...
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