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US20110301784 Helicopter  
The present invention relates to a reduced scale industrial helicopter, with an integrated automatic flight control system, that includes core autopilot functions, GPS management, and...
US20120043414 CONTROL OPTIMIZATION METHOD FOR HELICOPTERS CARRYING SUSPENDED LOADS  
The control optimization method for helicopters carrying suspended loads during hover flight utilizes a controller based on time-delayed feedback of the load swing angles. The controller outputs...
US20140027564 ROTORCRAFT AUTOPILOT AND METHODS  
A helicopter autopilot system includes an inner loop for attitude hold for the flight of the helicopter including a given level of redundancy applied to the inner loop. An outer loop is configured...
US20090072047 AIRCRAFT DEFENSE SYSTEM AND METHOD  
A method and system for aiding an aircraft pilot to avoid being struck by a heat seeking missile includes the steps of providing a mass of water and a missile detector for detecting an incoming...
US20140263820 Autorotative Enhancement System  
Embodiments refer generally to systems and methods for providing autorotative enhancement for helicopters using an autorotative assist unit coupled to the transmission of the helicopter. Methods...
US20110163199 A FLYING MACHINE COMPRISING TWIN CONTRA-ROTATING VERTICAL AXIS PROPELLERS  
A flying machine comprises a chassis on the underside of which is mounted two vertical axis contra-rotating propellers, which share a common rotational axis. The propellers are driven by two...
US20120068004 Auto-hover and auto-pilot helicopter  
A helicopter gyroscope mounted on the moving swash plate rather than in or on the body of the helicopter will improve the helicopters hovering capability and auto-pilot performance.
US20140332621 VARIABLE LOWER LIMIT COLLECTIVE GOVERNOR TO IMPROVE RECOVERY  
A flight control system uses a governor configured to regulate the speed of a rotor in the aircraft through collective pitch control of a rotor blade, and a limiter configured to selectively...
US20140077025 Pilot Control System with Adjustable Pedals  
According to one embodiment, a method of adjusting an aircraft pedal assembly includes providing a pedal linkage coupled between a pedal and an attachment assembly situated proximate to an...
US20110031346 METHOD OF ASSISTING PILOTING, PILOTING ASSISTANCE MEANS, AND A PILOTING ASSISTANCE DEVICE FOR A ROTORCRAFT USING SAID PILOTING ASSISTANCE MEANS TO IMPLEMENT SAID PILOTING ASSISTANCE METHOD  
The present invention relates to a device and method of assisting the piloting of a rotorcraft, the rotorcraft having a flight control (10) for controlling a rotor (20, 21) via at least one...
US20110192932 Regulator Device for Helicopters  
A regulator device used on helicopters carrying an external load suspended from the helicopter by a supporting cable aids in controlling the flight of the helicopter by measuring the oscillating...
US20130306787 AUTOMATIC ATTITUDE CONTROL OF ROTARY WING AIRCRAFTS  
A method and device for precise control of and controller design for aircrafts consisting of at least one spinning part and at least one non spinning part is provided. The required torques for...
US20120138730 STABILIZED SAFETY GYROPLANE  
The rotary wing aircraft is based on the principle of the gyroplane, and includes a double wing rotating in opposite directions, coupled to a power converter which transfers the power of the...
US20130006448 METHOD OF DYNAMICALLY CONTROLLING THE ATTITUDE OF A DRONE IN ORDER TO EXECUTE A FLIP TYPE MANEUVER AUTOMATICALLY  
This method controls the drone in order to flip through a complete turn about its roll axis or its pitching axis. It comprises the steps of: a) controlling its motors simultaneously so as to...
US20140117148 METHOD OF MANAGING AN ENGINE FAILURE ON A MULTI-ENGINED AIRCRAFT HAVING A HYBRID POWER PLANT  
A method of managing an engine failure on a rotary wing aircraft (1) having a hybrid power plant (5) with at least two fuel-burning engines (13, 13′), at least one electric machine (12), and a...
US20130313355 PITCHING STABILIZATION MEANS AND A ROTARY WING AIRCRAFT INCLUDING SUCH MEANS  
A pitching stabilization means (10) having at least one stationary stabilization surface (20) extending in a thickness direction from a bottom face (21) to a top face (22) and in a transverse...
US20110303783 Stabilizer  
The invention relates to a stabilizer for rotary wing aircraft 11 which carry a hanging sling load 12 in the direction of the ground on at least one support cable 13, and were the stabilizer is...
US20120018570 METHOD OF MINIMIZING THE ATTITUDE HUMP PHENOMENON AND A ROTARY WING AIRCRAFT PROVIDED WITH STABILIZER MEANS THEREFOR  
A method of minimizing the attitude hump phenomenon relating to a rotary wing aircraft (1) having an airframe (2) extending longitudinally from a front end (3) to a rear end (4) together with...
US20140361118 TORQUE BASED METHOD OF LIMITING VERTICAL AXIS AUGMENTATION  
A method of limiting vertical axis augmentation in a rotorcraft, the method comprising: measuring a torque with a sensor; deriving a comparison of the torque to a lower torque limit, using a...
US20120286088 EMERGENCY COLLECTIVE ACTUATOR AND METHOD FOR A HELICOPTER  
A helicopter includes a rotor system having a rotor with an adjustable pitch that is controlled at least in part by a pilot using a collective control and which helicopter generates a Low RPM...
US20120187237 DIRECTIONAL CONTROL FOR A HELICOPTER  
The present document describes a yaw control system for a helicopter having a controllable aft rudder. The system comprises a fan for blowing low pressure air impinging upon the controllable aft...
US20110079678 Method of and Device for Actively Damping Vertical Oscillations in a Helicopter Carrying a Suspended External Payload  
For damping vertical oscillations in a helicopter having a rotor drive-unit and an airframe and carrying an external payload suspended via a lifting gear from a load attachment point on the...
US20060049303 Mechanical density altitude compensation device for helicopter tail rotors  
A helicopter tail rotor pitch-range altering device is disclosed. The device is incorporated into the existing helicopter tail rotor pitch-change control system of a helicopter and automatically...
US20110121126 EMERGENCY COLLECTIVE ACTUATOR AND METHOD FOR A HELICOPTER  
A helicopter includes a rotor system having a rotor with an adjustable pitch that is controlled at least in part by a pilot using a collective control and which helicopter generates a Low RPM...
US20110049290 METHOD OF PILOTING A ROTARY-WING DRONE WITH AUTOMATIC STABILIZATION OF HOVERING FLIGHT  
This method, applicable in particular to radio-controlled toys comprises the operations consisting in: fitting the drone with a telemeter and a video camera; acquiring the altitude of the drone...
US20120153072 METHOD OF CONTROLLING AND REGULATING THE DEFLECTION ANGLE OF A TAILPLANE IN A HYBRID HELICOPTER  
A method of controlling and regulating a rotorcraft presenting a speed of advance that is high and stabilized, the rotorcraft including at least a main lift rotor (10), at least one variable pitch...
US20140077026 PITCH STABILIZER AND ROTARY-WING AIRCRAFT EQUIPPED WITH SUCH STABILIZER  
A pitch stabilizer [10] equipped with an upper stabilizer surface [15] and a lower stabilizer surface [20], with the upper stabilizer surface [15] being located in an upper plane [P1] and with the...
US20120234969 NAVIGATION ELECTRONIC CARD SUPPORT FOR A ROTARY WING DRONE  
The support (300) is intended to be fixed in a housing provided in the drone, through a mechanical interface (310) made of a material absorbing the mechanical vibrations. The mechanical interface,...
US20140061392 Aircraft With Integrated Lift And Propulsion System  
A vertical take-off and landing (VTOL) aircraft is designed to be so efficient that it can be commercially competitive with runway dependent aircraft operating in a range of 100 to 1000 miles or...
US20120029738 AIRCRAFT CAPABLE OF HOVERING, AIRCRAFT MANEUVERING ASSIST METHOD, AND INTERFACE  
An aircraft capable of hovering, and characterized by having at least one sensor, which has a plane sweep region and is designed to acquire, when the aircraft is manoeuvring, values of respective...
US20140027565 ROTORCRAFT ADVANCED AUTOPILOT CONTROL ARRANGEMENT AND METHODS  
An autopilot system includes an actuator arrangement that receives control signals to influence the flight of the helicopter in a selected one of a plurality of different flight modes. A control...
US20120091260 METHOD OF PILOTING A ROTARY WING DRONE HAVING MULTIPLE ROTORS  
This method implements a transition from i) moving state in which the drone is flying at speed and tilt angle that are not zero to ii) hovering state in which the drone has speed and tilt angle...
US20140070048 METHOD AND AN AIRCRAFT FOR MINIMIZING THE RISKS OF THE AIRCRAFT TOPPLING ON THE GROUND  
A method of assisting a pilot in order to minimize the risks of an aircraft rolling over on the ground, the aircraft having a main rotor and a yaw movement control rotor (4), together with lateral...
US20130221153 SYSTEM AND METHOD FOR AUTOMATION OF ROTORCRAFT ENTRY INTO AUTOROTATION AND MAINTENANCE OF STABILIZED AUTOROTATION  
The system is configured for automation of rotorcraft entry into autorotation. The system can provide a means to assist the flight crew of a rotorcraft in maintaining rotor speed following loss of...
US20110057071 LIFE IMPROVING FLIGHT CONTROL SYSTEM  
A flight control system includes a command model modified in response to a Life Improving Control (LIC) algorithm. An inverse aircraft model is in communication with the command model to generate...
US20140246538 TOWABLE AIR VEHICLE  
An unmanned, towable air vehicle is described and includes electronic sensors to increase the detection range relative to the horizon detection limitations of a surface craft, an autogyro assembly...
US20120091259 TOWABLE AIR VEHICLE  
An unmanned, towable air vehicle is described and includes electronic sensors to increase the detection range relative to the horizon detection limitations of a surface craft, an autogyro assembly...
US20090234554 GAS TURBINE ENGINE FIXED COLLECTIVE TAKEOFF COMPENSATION CONTROL SYSTEM AND METHOD  
A system and method of controlling a gas turbine engine controller in a rotorwing aircraft includes determining when a fixed collective takeoff (FCTO) of the rotorwing aircraft is being conducted....
US20100025524 FORCE GRADIENT USING A NON-CONTACT PROXIMITY SENSOR  
An improved design for a force gradient using a proximity sensor is disclosed. A force gradient comprises a shaft having a first end and a second end. The switch includes a spring contained...
US20060038058 Active control of airfoils  
Airfoils for lifting bodies and or propulsion of aircraft, helicopters, air ships, and or ships in or on liquids, etc: A fixed spar aerodynamically and structurally designed for compromise between...
US20130008998 TOWABLE AIR VEHICLE  
An unmanned, towable aerovehicle is described and includes a container to hold cargo, an autogyro assembly connected to the container and to provide flight characteristics, and a controller to...
US20080245924 ROTARYCRAFT POWER AND PROPULSION SYSTEM  
A rotary wing vehicle includes a body structure having an elongated tubular backbone or core and a counter-rotating coaxial rotor system having rotors. The rotor system is used to move the rotary...
US20140097291 HOVER HOLD AID SYSTEM FOR A HELICOPTER  
The general area of the invention is that of hover hold aid systems for helicopters. The system comprises navigation means; a helmet-mounted visualization system containing a helmet-mounted...
US20140054411 METHOD OF ASSISTING A PILOT OF A SINGLE-ENGINED ROTARY WING AIRCRAFT DURING A STAGE OF FLIGHT IN AUTOROTATION  
A method of assisting a pilot of a single-engined rotary wing aircraft (1) during a stage of flight in autorotation, said aircraft (1) including a hybrid power plant having an engine (13), an...
US20110139928 AUTOGYRO AIR VEHICLE  
An unmanned, towable aerovehicle is described and includes a container or frame to hold or support cargo, at least one and, in some examples, a plurality of autogyro assemblies connected to the...
US20140027566 ROTORCRAFT AUTOPILOT SYSTEM, COMPONENTS AND METHODS  
An autopilot actuator includes first and second motors each including a rotatable motor output shaft such that either one or both of the motors can drive an actuator output shaft. An autopilot...
US20130134255 PILOT CYCLIC CONTROL MARGIN DISPLAY  
A system to control flight of an aircraft includes a rotor blade, an actuator operably associated with the rotor blade, a controller operably associated with the actuator, and a flight control...
US20140034774 FAST, LONG-RANGE AIRCRAFT  
An aircraft (1) comprising a fuselage (2), a rotary wing (10) having two contrarotating main rotors (12) arranged in tandem above the fuselage (2), at least one propulsion member (20), and a power...
US20100012768 ROTARY WING AIRCRAFT ROTATING MACHINERY VIBRATION CONTROL SYSTEM  
Helicopters and rotary wing aircraft vibration control system for controlling rotating machinery vibrations are provided for rotating machinery vibrations correlating with operational rotating...
US20090242691 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.
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