Airbus Helicopters

Eurocopter

Robert Dubois

Pierre Prud'Homme-Lacroix

Vincent Lassus

Pierre PrudHomme Lacroix

The present invention relates to landing gear () having at least one undercarriage () comprising a landing gear leg () carrying at least one wheel (). The undercarriage () includes a retraction actuator () having an electric motor (), blocking means () for blocking the actuator in the retraction position and for enabling the retraction actuator to be positioned in the 'landing gear extended' position by gravity, first monitoring means () for monitoring the operation of the retraction actuator (), first control means () for controlling the refraction actuator (), and second control means () for controlling the blocking means ().

Landing gear, an aircraft, and a method

An on-board device () for measuring the weight of an aircraft (G), the device comprising a hollow element () extending from a first end () to a second end () and a bar () extending inside said hollow element () from an embedded end () to a free end (). The free end () has first and second sensors () respectively for taking first and second distance measurements, said device () further including processor means () connected to the first sensor () and to the second sensor () to generate an alert when a sum of the first measurement plus the second measurement varies, and secondly a processor unit () connected to at least one of said sensors () for determining information relating to weight.

On-board device for measuring the weight of an aircraft and the position of its center of gravity

An aircraft undercarriage is provided (). The undercarriage () includes a rocker lever () having a first end zone () for fastening to at least one point of the structure of the aircraft and a second end zone () connected via a swivel () to twin wheels () including a wheel axle () connecting together two landing wheels (R, R). The swivel () includes a first portion () that is fastened to the second end zone () of the rocker lever () and a second portion () being free to swivel relative to the first portion () about a swivel axis (A, A) of the swivel (). the second portion () is connected to the wheel axle () of the twin wheels (). In addition, the connection between the second portion () of the swivel () and the wheel axle () includes a hinge ().

Aircraft undercarriage having a rocker lever with a swivel and hinged twin wheels

A rotary wing aircraft () provided with an emergency undercarriage () for mitigating a failure of a basic undercarriage () of the rotary wing aircraft (). Said emergency undercarriage comprises a main member () that extends from a first end () to a second end (), said emergency undercarriage () having deployment means () for deploying the main member () out from a housing () in order to take over from a basic undercarriage () of a rotary wing aircraft () in the event of a failure, said emergency undercarriage () being provided with holder means () for holding it in position to block said main member () when said main member () is deployed out from said housing ().

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Aix en Provence, France

Robert Dubois