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| Number | Title | Issue Date |
| 7988089 | Swashplate trajectory control A system and method of controlling a rotary-wing aircraft includes transforming a non-rate limited servo position command into a rate limited servo position command. ... | 08/02/2011 |
| 7931231 | Engine anticipation for rotary-wing aircraft A flight control system and method which determines an expected power required data in response to a flight control command of the at least one model following control law and utilizes the expected power required data to perform at least one action to control an eng... | 04/26/2011 |
| 7900869 | Helicopter rotor control system with individual blade control Controlling the pitch of individual rotor blades of a helicopter to reduce control loads, vibration and noise in or from the rotating rotor control elements. The system generates blade dynamics signals representing dynamic forces acting on either or both of the rota... | 03/08/2011 |
| 7686246 | Method and system for controlling helicopter vibrations A method/system for controlling helicopter vibrations is provided that includes a vibration canceling force generator for actively generating a vibration canceling force. The system includes a resonant actuator having a natural resonant frequency and a resonant actu... | 03/30/2010 |
| 7611091 | High speed vertical take-off and land aircraft with active fan balancing system A high-speed vertical take-off and land aircraft includes a body with an engine supported by the body. A fan assembly is also carried by the body. The fan assembly includes a hub and a plurality of blades to provide vertical lift for the aircraft. A plurality of fri... | 11/03/2009 |
| 7546975 | Tandem rotor wing rotational position control system A rotational position-adjusting system (6) for a vertical takeoff and landing aircraft (4). The system (6) includes multiple detectors (60) that generate rotor signals. The rotor signals are indicative of the position of each rotor (8 | 06/16/2009 |
| 7440826 | Steering aid system for altitude and horizontal speed, perpendicular to the vertical, of an aircraft and aircraft equipped therewith A steering aid system for altitude and horizontal speed of an aircraft (4) includes: a measuring device (22) for delivering a measured signal based on the aircraft altitude and horizontal speed, a common predetermined reference value (26) for th... | 10/21/2008 |
| 7438259 | Compound aircraft control system and method The Invention is a control system for a compound aircraft. A compound aircraft has features of both a helicopter and a fixed wing aircraft and provides redundant control options. The control system allows an authorized person to select any of plurality of control bi... | 10/21/2008 |
| 7425167 | Toy helicopter A helicopter has a main rotor with propeller blades which is driven by a rotor shaft and which is hinge-mounted to this rotor shaft. The angle between the surface of rotation of the main rotor and the rotor shaft may vary. A swinging manner on an oscillatory shaft i... | 09/16/2008 |
| 7425168 | Toy helicopter A helicopter has a main rotor with propeller blades which is driven by a rotor shaft and which is hinge-mounted to this rotor shaft. The angle between the surface of rotation of the main rotor and the rotor shaft may vary. A swinging manner on an oscillatory shaft i... | 09/16/2008 |
| 7422505 | Toy helicopter A helicopter has a main rotor with propeller blades which is driven by a rotor shaft and which is hinge-mounted to this rotor shaft. The angle between the surface of rotation of the main rotor and the rotor shaft may vary. A swinging manner on an oscillatory shaft i... | 09/09/2008 |
| 7400949 | Device for adjusting at least one parameter, in particular for an aircraft automatic pilot system A device for adjusting a parameter includes a selector that is actuated by an operator. A coder is driven in rotation by the actuation of the selector and emits a signal representative of the rotation. A first detector detects an actuation of the selector, and a sec... | 07/15/2008 |
| 7370829 | Method and system for controlling helicopter vibrations A method/system for controlling helicopter vibrations is provided that includes a vibration canceling force generator for actively generating a vibration canceling force. The system includes a resonant actuator having a natural resonant frequency and a resonant actu... | 05/13/2008 |
| 7370836 | Missile defense system and methods for evading heat seeking missiles A method for aiding a helicopter pilot to avoid a heat seeking missile includes the step of detecting a threat from a missile. The method also includes the step of reducing heat emanating from the helicopter's engine and rapidly reducing altitude. Then, when the thr... | 05/13/2008 |
| 7367531 | Systems and methods for evading heat seeking missles A method and system in an airborne aircraft to evade a heat seeking missile includes the steps of detecting the launch or “lock on” of a heat seeking missile and reducing the radiation from the aircraft's engine by reducing the engine speed to idle. The method m... | 05/06/2008 |
| 7363809 | Methods and systems for providing air data parameters using mass flow and pressure sensors A system is described that is configured to determine a plurality of air data parameters for an air vehicle. The system includes a mass air flow sensor, a pressure sensor, and a controller. The mass air flow sensor is mounted to sense an air flow caused by movement ... | 04/29/2008 |
| 7363121 | System, method and apparatus for searching geographic area using prioritized spatial order A spatial data search method, system and apparatus for identifying particular data of significance around a reference vector through the spatial data. The method involves determining a reference vector within a spatial region for which spatial data exists, loading a... | 04/22/2008 |
| 7341222 | Micro-unmanned aerodynamic vehicle A MEMS-based micro-unmanned vehicle includes at least a pair of wings having leading wing beams and trailing wing beams, at least two actuators, a leading actuator beam coupled to the leading wing beams, a trailing actuator beam coupled to the trailing wing beams, a... | 03/11/2008 |
| 7331235 | Device for indicating a beat level A device for indicating a beat level L, the device including an analyzer which responds to a reference frequency Ω and a harmonic coefficient B to extract from an evaluation signal E a first acceleration signal γB at a frequency equal to the product of ... | 02/19/2008 |
| 7305286 | System and method for gyro enhanced vertical flight information A flight instrument and associated method where vertical speed information is combined with gyro information to produce gyro enhanced vertical speed information that is displayed to a pilot. The gyro information may include a pitch rate gyro and may include an azimu... | 12/04/2007 |
| 7275711 | Gas-powered tip-jet-driven compound VTOL aircraft A compound Vertical TakeOff and Landing (VTOL) aircraft. In a specific embodiment, the VTOL aircraft includes a gas-powered tip-jet driven rotary-wing and a fixed-wing that is capable of providing necessary lift to the aircraft during certain forward-flight regimes ... | 10/02/2007 |
| 7264199 | Unloaded lift offset rotor system for a helicopter A rotor system (12) for a helicopter (10) includes a rotating shaft (82). A gimbaled hub assembly (56) is coupled to the rotating shaft (82). Rotating blades (24) and non-rotating blades (33) are coupled to the gimbal... | 09/04/2007 |
| 7259685 | Landing light fault annunciator A helicopter of the type having an electrical system, a landing light, a master switch and a power supply of between about 18-32 V for operating the electrical system when the master switch is in an on position also includes a landing light fault detector. The landi... | 08/21/2007 |
| 7237747 | Device for assisting an airplane in intercepting a segment of a flight path utilizing positional and ground speed indicators Device assisting with interception by an aircraft of a flight path segment located in a horizontal plane and a system of assistance with interception and follow-up of such a segment. The device includes means of determining a ground speed vector and means of display... | 07/03/2007 |
| 7239266 | Radar altimeter The present invention provides a radar altimeter system with a closed loop modulation for generating more accurate radar altimeter values. The system includes an antenna, a circulator, a receiver, and a transmitter. The circulator receives or sends a radar signal fr... | 07/03/2007 |
| 7223071 | Device for providing assistance to the pilot of a rotorcraft in the event of engine failure The present invention provides a device enabling the collective pitch of the blades of the main rotor of a single-engined rotorcraft to be reduced automatically in the event of an engine failure. The device comprises an actuator which increases the collective pitch ... | 05/29/2007 |
| 7216831 | Shape changing structure In one preferred embodiment, a structure is provided that includes a body having a first wall and a second wall. At least one appending component extends from an end of the body and includes a first skin and second skin. The structure additionally includes at least ... | 05/15/2007 |
| 7210651 | Compact co-axial rotor system for a rotary wing aircraft and a control system therefor A dual, counter rotating, coaxial rotor system provides an upper and lower rotor system, with a reduced axial rotor separation distance along a common axis by way of rotor tip position sensing and rotor position controls to avoid tip contact. ... | 05/01/2007 |
| 7204455 | Motion assisting apparatus A drive assembly for use with a mechanical flying or walking device comprises an articulated member (7) having first and second portions (7a, 7b) arranged such that the portions move relative to each other, and a drive mechanism ( | 04/17/2007 |
| 7204453 | Rotor and aircraft passively stable in hover The present invention discloses a rotor that enables an aircraft to be passively stable in hover. The rotor, having a generally fixed geometry is tiltably connected to its rotor shaft. The outer part of the rotor blades have a pitch fixed relative to the rotational ... | 04/17/2007 |
| 7198234 | Method and apparatus for modulating flow separation An apparatus comprising: an aerodynamic surface adapted for producing an adverse pressure gradient in a fluid flow; and a first pulse detonation actuator disposed adjacent the aerodynamic surface and adapted for impulsively detonating a fuel/air mixture to produce a... | 04/03/2007 |
| 7195200 | Unmanned helicopter, takeoff method of unmanned helicopter, and landing method of unmanned helicopter An unmanned helicopter includes an altitude control device for giving a command of a collective pitch blade angle based on an altitude change rate command, etc., and performing altitude control of an airframe and takeoff device, upon reception of a takeoff start com... | 03/27/2007 |
| 7194397 | Robust uninhabited air vehicle active missions A command sequence for an autonomous UAV mission is optimized by simulating the performance of a mission in a model environment. Using a genetic algorithm, neural net, or other suitable technique this command sequence is then optimized, to improve the outcome of the... | 03/20/2007 |
| 7182297 | Method and apparatus for supporting aircraft components, including actuators Methods and apparatuses for supporting aircraft components, including actuators are disclosed. An apparatus in accordance with one embodiment of the invention includes an actuator housing having an actuator receptacle that securely yet releasably receives an actuato... | 02/27/2007 |
| 7147182 | Gas-powered tip-jet-driven tilt-rotor compound VTOL aircraft A tilt-rotor compound VTOL aircraft has a multiple-flow thrust generator(s) comprising a gas-powered tip-jet driven rotor(s) having a thrust-augmentation ratio of at least two; that tilts about the aircraft's pitch axis wherein the rotor's plane of rotation is subst... | 12/12/2006 |
| 7144222 | Propeller A propeller or propeller blade is manufactured using lattice block material to provide a structure which is generally hollow but for a three-dimensional lattice of support spars. The propeller or propeller blade, being predominately hollow, is substantially lighter ... | 12/05/2006 |
| 7118343 | Trailing edge adjustable weight system for helicopter main rotor blades A system of adjustable balancing weights is provided for a helicopter main rotor blade. The trailing edge of the rotor blade is formed with a plurality of recesses that each receive an aerodynamically shaped weight to adjust and balance the weight of the rotor blade... | 10/10/2006 |
| 7113496 | Apparatus and method for assigning a common packet channel in a CDMA communication system Disclosed is a method for indicating an end of transmitting data frames in order to enable a UTRAN (UMTS (Universal Mobile Telecommunications System) Terrestrial Radio Access Network) to assign a common packet channel to another user equipment (UE) in a UE for a CDM... | 09/26/2006 |
| 7100866 | Control system for a flying vehicle In one embodiment of the present invention there is described a vehicle having a propeller mechanism for propelling the vehicle in a horizontal direction. The vehicle includes a transmitter positioned on the bottom of the vehicle for transmitting a signal from the v... | 09/05/2006 |
| 7083142 | Compact co-axial rotor system for a rotary wing aircraft and a control system thereof A dual, counter rotating, coaxial rotor system provides an upper and lower rotor system, with a reduced axial rotor separation distance along a common axis by way of rotor tip position sensing and rotor position controls to avoid tip contact. ... | 08/01/2006 |
