Airbus Operations (s.a.s.)

Airbus France

Sylvain Thezelais

Paule Botargues

Isabelle Lacaze

Nicolas Caule

Christelle Ledauphin

Alain Porte

Eric Rambaud

Jerome Bailly

Jerome Goyet

Nathalie Pascal

Jérôme Bailly

Jérôme Goyet

According to the invention, a terrain avoidance maneuver is engaged when the alerts of a given pair of alerts are emitted simultaneously, the triggering of one of the alerts depending on the information provided by a first measurement chain and the triggering of the other alert of the pair relying on information provided by a second measurement chain, distinct from and independent of the first chain.

Method and device of terrain avoidance for an aircraft

An altitude profile representative of the terrain overflown by an aircraft is established. Thereafter, an altitude limit curve which comprises an intersection with the altitude profile upon the engagement of a terrain avoidance maneuver is determined. As soon as there is no longer any intersection of the limit curve with the altitude profile, the terrain avoidance maneuver is interrupted.

An acoustically resistive layer for an acoustic attenuation panel ( ) forming a conduit in which there is an aerodynamic flow ( ), adapted particularly for an aircraft turbo jet engine. The panel has at least one acoustically resistive layer ( ), at least one porous structure ( ) and a reflector ( ) disposed opposite the incident wave. The acoustically resistive layer ( ) is constituted by strips ( ) disposed in the direction of the flow ( ), interconnected by a plurality of splints ( ) ensuring the absorption of force, particularly radially, the splints ( ) having very small surfaces ensuring the continuity of the homogeneous character of the quantity of open surface of the acoustically resistive layer thus formed.

Acoustically resistive layer for an acoustical attenuation panel, panel using such a layer

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Toulouse, France

Sylvain Thezelais