VEHICLE FOR AERONAUTIC OPERATION AND SUBMERSED OPERATION

Systems and method for automation of rotorcraft entry into autorotation and maintenance of stabilized autorotation

Method of regulating the speed of rotation of the main rotor of a multi-engined rotorcraft in the event of one of the engines failing

Passive deployment mechanism for lift fan

Rotorcraft with integrated light pipe support members

All-electric multirotor full-scale aircraft for commuting, personal transportation, and security/surveillance

Rotorcraft flapping lock

Stiff inplane elastomeric rotorhead

Propeller/rotor control apparatus and method

Removable lift assembly for a rotorcraft, and a rotorcraft

Vertical takeoff and landing aircraft

Asymmetric multirotor helicopter

ROTORCRAFT WITH AT LEAST ONE MAIN ROTOR AND AT LEAST ONE COUNTER-TORQUE ROTOR

Broad goods composite yoke for rotor system

Helicopter rotor blade clamp

Modular and morphable air vehicle

Flexbeam unit for a bearingless or a hinge- and bearingless multi-blade rotor of a rotary wing aircraft

Power and data transfer to hub sensors

Constant velocity drive for tilt rotor assembly

Stiff-in-plane rotor configuration

Yaw control of co-axial rotor

Rotorcraft rotor including primary pitch horns and secondary horns

High speed composite drive shaft

Airborne photovoltaic solar device and method

Swashplateless coaxial rotary wing aircraft

Aircraft using turbo-electric hybrid propulsion system

Hybrid sliding element and elastomeric bearing

Constant-velocity joint link with reduced axial stiffness

Harmonic data transfer in rotary wing aircraft

Mast-mounted aircraft generator

Rocket or ballistic launch rotary wing vehicle

Jam-tolerant linear control motor for hydraulic actuator valve

Flexing clevis arrangement bolted joint attachment for flexible rotor hub with high offset and high flapping

High flapping yoke hub assembly using a cylindrical elastomeric attachment to avoid holes

Gimbaled tail rotor hub with spherical elastomeric centrifugal force bearing for blade retention and pitch change articulation

Constant velocity joint with spring rate control mechanism

Method of driving a main rotor of a rotorcraft in rotation in compliance with a speed of rotation setpoint of variable value

Method of driving rotation of a rotorcraft rotor by anticipating torque needs between two rotary speed setpoints of the rotor

System and method for linkage length adjustment

Constant velocity joint with control mechanism

Passive cooling of transmission using mast mounted heat pipes

Rotor assembly for an aircraft capable of hovering and equipped with an improved constraint assembly

System for removing a spindle from a rotor assembly

Electrical power supply device for powering at least one piece of equipment of an aircraft rotor, and an aircraft

Device for monitoring the flapping and/or lag behavior of a blade of a rotorcraft rotor

Coaxial counter-rotating rotor system

Rotor hub bearing system

Rotor with blades including outer blade shell and inner structural member

Disc rotor retraction system

Rotor yoke and method of making the same

Rotor assembly for a rotorcraft

Rotor hub and blade root fairing apparatus and method

Helicopter rotor control system

Constant-velocity joint with torque-combining differential

Modular and morphable air vehicle

Rotor provided with a device for protecting it against lightning, and an aircraft provided with such a rotor

Rotor-blade control system and method

Yoke and bearing fitting assembly for rotors

Stiff-in-plane rotor configuration

Drive mechanisms for variable diameter rotor systems

ROTATING WING AIRCRAFT WITH TIP-DRIVEN ROTOR AND ROTOR-GUIDE RING

Directionally controllable flying vehicle and a propeller mechanism for accomplishing the same

Method of making a rotor yoke and rotor yoke thereof

Directionally controllable flying vehicle and a propeller mechanism for accomplishing the same

Distributed-mass device for reducing vibration generated by a rotorcraft lift rotor, and a rotor hub fitted with such a device

Concentrated-mass device for reducing vibration generated by a rotorcraft lift rotor, and a rotor hub fitted with such a device

Constant-velocity joint with torque-combining differential

Multi-bladed rotor system for rotorcraft

Helicopter rotor yoke and method of making same

Wireless communication between a rotating frame of reference and a non-rotating frame of reference

Helicopter rotor

Rotor hub vibration attenuator

Rigid rotor assembly for folding helicopter blades

Rotary-wing aircraft torque coupling with pad bearings

LIFT CHAMBER

Tambourine helicopter

Upper rotor control system for a counter-rotating rotor system

Yoke with notched arm roots

Rotorcraft blade, a rotorcraft rotor provided with said blade, and a method of fabricating said blade

Aircraft using turbo-electric hybrid propulsion system

Coaxial rotor system for helicopters

System, method and apparatus for aircraft having counter-rotating, ring-winged rotors

Retractable lifting blades for aircraft

Stiff-in-plane gimbaled tiltrotor hub

Torque coupling for rotary-wing aircraft

Rotatable duct type shrouded rotating wing

Bearingless rotor blade assembly for a high speed rotary-wing aircraft

Rotor system with pitch flap coupling

Rotor apparatus and methods for vertical lift aircraft

Round Honeycomb Rotor

Fluid-elastomeric damper assembly including internal pumping mechanism

Rotorcraft rotor with blades hinged in flap and in lag

Rotor for passively stable helicopter

Vertically staggered helicopter rotor blade assembly

Retractable lifting blades for aircraft

Rotor and gyrocopter with said rotor

Hingeless rotor provided with plate-shaped rotor head element and a rotorcraft provided with said rotor

Helicopter rotor

Rotating wing aircraft with tip-driven rotor and rotor guide-ring

Closed wing

Fairing for the rotor of a rotorscraft

Bearing race support without distortion

Rotor as well as rotary-wing aircraft with a rotor

Fluid-elastomeric damper assembly including internal pumping mechanism

Structural bushing application for highly loaded composites lugs

Propellers and propeller related vehicles

Rotor brake as well as rotor and rotary-wing aircraft with such a rotor brake

Main rotor shaft mounted hydraulic pressure system

Motor mount for separate type motor of large multicopter

Planetary pinion gear deflection restraint device

Lighting system for preventing bird strikes and aircraft incorporating the same

Hollow multi-blade rotor, assembly, and method of manufacture

Rotor system for electrically powered rotorcraft

Power limiting control for shared DC bus loads

Mast bearing race

Methods and apparatus for generating electrical power on aircraft rotor heads

Rotor mast assembly

Shaft-mounted operators for folding and opening propeller blades

Heliplane rotor thermal management for maintaining dimensional stability

Heliplane rotor thermal management for maintaining dimensional stability

Feathering-spindle-bearing lubrication and temperature control