Airbus Helicopters

Eurocopter

Alain Kirchhofer

Olivier Honnorat

Patrick Garcia

Francois Mandonnaud

François Mandonnaud

A device () for defining a flight path () enabling an aircraft () to reach a destination (B), said device () including a digital terrain model () and a display screen (), and being provided with generator means () for generating a flight path () including at least one flight segment () associated with a flying altitude. The device () includes a digital noise database () having volumes that are to be avoided, said device () having a computer () with a main memory () containing instructions for displaying on said display screen () and as an overlay on a first representation () of said terrain as provided by said digital terrain model (): a second representation () of said volumes to be avoided; and a flight path () that has been generated by using said generator means ().

Device and a method for constructing a flight path in order to reach a destination

The invention relates to an actuator () comprising a rotary electric motor () a screw Old) driven in rotation by the motor, a mechanical member () driven in translation by the screw, a first position sensor () sensitive to a position of the electric motor and/or of the screw, a second position sensor () sensitive to a position of the mechanical member, and a servo-control circuit (11) connected to both of the position sensors and to the motor, this circuit delivering a power supply signal to the motor that varies as a function of a position setpoint signal () and as a function of signals delivered by the two position sensors; the second position sensor presents a resolution that is at least equivalent to the resolution of the first position sensor, and the servo-control circuit includes redundant modules () for calculating the position of the mechanical member as a function of the signals/data delivered by the two sensors, together with at least two modules () for mutual surveillance of the results delivered by the calculation modules.

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Salon de Provence, France

Alain Kirchhofer