Abstract: The invention relates to a wall (2)-protection device (1), notably for a vehicle wall, against attack by a projectile. This device comprises at least one explosive charge (3) able to project at least one metallic block (7) in the direction of the projectile. The device is characterized in that the block or blocks (7) are in the shape of elongated bars, that is which have a maximal length greater than or equal to 10 times their smallest crosswise dimension, the explosive charge (3) being position opposite a longitudinal surface of the bar (7).

Abstract: The invention relates to a wall (2)-protection device (1), notably for a vehicle wall, against attack by a projectile.

Abstract: An active protection device for a surface, the device having at least one casing enclosing at least one shaped charge having a direction of action substantially parallel to or else inclined with respect to the surface as well as detection device ensuring the triggering of the shaped charge in response to the onset of a projectile. The casing encloses four dihedral shaped charges forming a quadrilateral, or four groupings of shaped charges, and having converging directions of action, the directions of action of the shaped charges can be inclined with respect to the surface and oriented towards the outside of the surface.

Abstract: The charge of the invention comprises a plate placed between the explosive charge and the liner. The diameter of the plate is equal to the internal diameter of the casing of the charge. The material used for the plate must be such that its density is lower than or equal to that of the material used for the liner and must have a volumetric compressibility modulus greater than or equal to 100 GPa, with the thickness of the plate greater than or equal to that of the liner at any point of a central area surrounding the axis of the charge, so as to ensure that upon initiation of the charge the centripetal deformation of the plate will be less than that of the liner.

Abstract: A shaped-charge warhead for munitions according to the invention includes a triggering mechanism and an explosive charge located inside an envelope and in contact with a covering designed to be set in motion in a direction of action by the detonation of the explosive charge. The envelope is essentially cylindrical and the covering is located such that the direction of action is essentially perpendicular to the axis of the envelope. The triggering mechanism is located in the vicinity of the cylindrical envelope and on the other side of the axis relative to the covering.

Abstract: This invention involves a warhead, for use against armor containing several reactive stages, specifically, an anti-tank warhead, of a type comprising shape charges acting sequentially from front to rear and separated by protective elements. It includes:a front module containing at least two tandem-mounted shape charges (1, 2) whose caliber is between 25 and 50% of the caliber of the warhead, with a delay of 100 to 500 microseconds between their respective initiations; anda main charge (3) whose caliber is the same as that of the warhead and which is initiated after a delay of 200 to 2000 microseconds after initiation of the rear charge in the front module.Applications involve shells, rockets or missiles intended to attack multi-stage, spaced, composite or reactive armor.

Abstract: A priming system includes a block made of pyrotechnically inert material having on one of its surfaces a cavity placed facing an explosive charge. Structure for allowing percussion of the block is mounted at a receiving surface substantially parallel to a surface where the cavity is located. The priming system can thus be completely devoid of pyrotechnic components.

Abstract: A high performance shaped charge for piercing high strength steel has a symmetry of revolution about an axis; a priming system constituted by a punctiform initiating source for producing a detonation wave in a block of donor explosive, and a cavity positioned between the donor explosive and a receiver explosive, the cavity being shaped in such a way that the detonation wave from the receiver explosive which enters a charging explosive is planar and perpendicular to the axis of the charge.

Abstract: A warhead designed for employment against a target having active armor protection comprises a forward shaped charge and a rear shaped charge. The forward shaped charge generates a core explosion whose speed is below 2,500 meters per second, and thus does not detonate the active armor, while the rear charge is formed of a high-performance, high-explosive charge and completely pierces the armor. A time delay of between 50 and 300 .mu.sec is employed for detonating the rear charge after the detonation of the first charge. This type of warhead is suitable for piercing rolled homogenous armor (RHA), or spaced, composite, or active armor, and can be fired by means of rockets, missiles, shells, etc.