Eurocopter

Aerospatiale Societe Nationale Industrielle

Innostar

Societe Anonyme Dite: Aerospatiale Societe Nationale Industrielle

Philippe Roesch

Rene L Mouille

Jean-Michel Simon

Rene Louis Mouille

An aerodyne comprises a fuselage, a fixed wing , a thruster for cruising flight, and a rotary wing for stages of vertical flight and held stationary during cruising flight. The rotary wing includes at least two contrarotating single-blades disposed at the top of the fuselage and hinged about respective axes perpendicular to the rotor axes of rotation. A maneuvering procedure for maneuvering the aerodyne includes a transition stage between a stage of vertical flight and a stage of cruising flight, wherein in the transition stage, when the speed of each single-blade is less than a threshold speed of rotation, the pitch of each single-blade is such that it no longer provides any lift force and the transverse hinge of the single-blade to its rotor axis is held locked in a position such that the single-blade is perpendicular to the rotor shaft.

Procedure for maneuvering a hybrid aerodyne of VTOL or STOL

A hybrid helicopter () includes firstly an airframe provided with a fuselage () and a lift-producing surface (), together with stabilizer surfaces (), and secondly with a drive system constituted by:

Fast hybrid helicopter with long range and proportional drive to the rotor and the propeller

A system () for controlling a rotorcraft () including a rotor (), at least one variable-pitch propulsion propeller (L,R), and a motor () for driving the rotor and the propeller(s), the system includes:

Rotorcraft control system

A hybrid helicopter () includes firstly an airframe provided with a fuselage () and a lift-producing surface (), together with stabilizer surfaces (), and secondly with a drive system including:

Fast hybrid helicopter with long range and an optimized lift rotor

A hybrid helicopter includes an airframe provided with a fuselage and a lift-producing surface together with stabilizer surfaces and a drive system including:

Fast hybrid helicopter with long range with longitudinal trim control

Method and device for the reduction of the oscillations of a divergent nature induced in the fuselage (2) of a helicopter (1) by its rotary wings (3) when they are turning. According to the invention, the oscillations are detected (at 17, 18) and they are converted (at 19, 20) into electrical signals, which are used (at 13) in order to produce pitch variations of the blades (4) of the rotary wings (3), in such a way that a rotating torque vector opposing said oscillations results.

Growing community of inventors

Aix en Provence, France

Philippe Roesch