Abstract: The technical scope of the invention is that of sub-calibred projectiles comprising a calibred sabot formed of at least two segments and surrounding a sub-calibred penetrator. This projectile is characterized in that the sabot incorporates at least three substantially calibred support seats, axially spaced from one another. The distance between said two supports the furthest apart is greater than or equal to 3 calibers. At least one support seat, called median support seat, is formed by a push plate (PP) incorporating at least one groove to receive a band, said push plate axially located between said two other support seats.

Abstract: A sub-calibre projectile incorporating a penetrator and a sabot formed of several segments, the penetrator and sabot incorporating profiles that cooperate with one another so as to ensure the axial drive of the penetrator by the sabot when the projectile is being fired, such projectile wherein there is axial play (J) between the profile on the sabot and that on the penetrator so as to enable a limited relative axial displacement of the sabot with respect to the penetrator, means being provided to ensure the radial locking of the sabot segments by the penetrator in the foremost position of the sabot with respect to the penetrator, this locking no longer being ensured in the rearmost position of the sabot with respect to the penetrator.

Abstract: The invention relates to a dilution and dispersion device for the exhaust and/or cooling gases of a vehicle's engine, that incorporates blades and a hub. The hub of said device incorporates means intended to reduce the loss in the gaseous flow rate generated by said gases. The flow rate loss reduction means are constituted by one or several openings in said hub or by a profiled element allowing said gases to be defected towards said blades. The blades are fastened to a ring.

Abstract: A method of projectile control provides a control order for an organ allowing the yaw piloting of a spinning projectile. The control order causes a modification of a yaw piloting parameter of the projectile, the parameter that needs to be controlled being fin deflection. The angular rate of roll of the projectile is measured. At least one corrective coupling term is introduced into the evaluation of the control order modifying the yaw piloting parameter. The corrective coupling term is proportional to the angular rate of roll and also to the drift over time of the pitch piloting parameter to provide projectile piloting orders control fin motors.

Abstract: A sabot for a projectile comprising at least two segments intended to surround and drive a sub-calibre penetrator, such sabot comprising a calibred thrust plate, wherein said sabot incorporates a body made of a light material, said body having at least one longitudinal insert made of a material having high mechanical properties, said insert having indentations cooperating with an external profile of said penetrator to allow it to be driven, said indentations extending those of said sabot body and which thus also cooperate with the external profile of said penetrator.

Abstract: A device to recuperate the energy produced during the recoiling of a weapon provided with a hydraulic fluid power circuit, wherein said device comprises an energy recuperating cylinder activated by the recoil of said weapon, a double-acting cylinder comprising two chambers separated by a piston, a first chamber of said cylinder being connected to said hydraulic power circuit of said weapon, said piston of said cylinder pushing said hydraulic fluid in said circuit into a storage accumulator when said weapon recoils. The energy recuperating cylinder comprises a second chamber connected to a recoil mechanism that ensures pressurising of said mechanism.

Abstract: The invention relates to a sabot for fin-stabilized ammunition composed of segments assembled around a sub-calibrated penetrator. The sabot is characterized in that it includes at least three longitudinal bars of a substantially constant width, each having indentations co-operating with an external profile of the penetrator to allow it to be driven, as well as a calibrated thrust plate integral with the bars. Application to projectile firings.

Abstract: The invention relates to a container for propellant charge modules to be loaded into a weapon using conveyance means. It comprises protection means insulating said modules from the conveyance means, constituted by a rigid tubular body, a sheath intended to receive the modules and means to block the modules in the sheath. The sheath is made of a deformable material. The blocking means ensure the deformation of the sheath to immobilize the modules. Application to charge module conveyance.

Abstract: The invention relates to a device to prevent the formation of solid matter due to projections on an air outlet, for example that of an armored vehicle, located near to such projections.

Abstract: The invention relates to an automatic loading process and system for a large-caliber weapon mounted on a ship and firing ammunition, constituted by charges and projectiles, at a high rate of fire. The system comprises means allowing at least three isolated areas to be defined for the circulation of the ammunition, a first area in which the charges and projectiles and received and introduced into containers and a second area in which these containers are transferred into an intermediate magazine arranged between the weapon and the first area, and a third area where the weapon is actually loaded with the projectiles and charges, all of these areas being isolated from one another by resistant walls defining hatches providing a passage, and it comprises means to transfer the containers from the first area to the turret then the projectiles and charges into the weapon. Application to artillery mounted on a ship.

Abstract: A plasma torch including at least two electrodes separated by an insulating cylindrical case having a void, wherein the electrodes are separated by a distance (D) for forming an igniting arc therebetween when the electrodes are connected to a voltage, the distance (D) and the voltage being selected to form substantially a 1 Megavolt/meter electrical field between the electrodes, for forming an arc and causing plasma to be generated from the plasma generating material.

Abstract: The invention relates to an attachment device for observation and/or scrambling or other effect means at the end of the cannon of an armored vehicle. It incorporates a rigid substantially parallelepiped body, one face of which is shaped to fit the outer wall of the barrel, and constituting a reception cage, said body being connected to the barrel by removable linking means. The observation means are constituted by a day or night-vision camera. The reception cage of the body incorporates at least three cameras. Application to armored vehicles.

Abstract: The invention relates to a slow combustion composition for long duration pyrotechnic delays. It comprises an oxidant of the perchlorate type according to a percentage in mass of between 75 to 91%, a reductant selected from among the aromatics according to a percentage in mass of between 5 to 20%, 0 to 6% of a binder and 0 to 5% in mass of a nanometric silica powder. Application to the manufacture of cords or fuses for delays having a combustion rate of around 1 mm/s.

Abstract: A neutralization device for a payload carried by a vector, such as a rocket. This device incorporates at least one explosively-formed charge, where such charge is made integral with the vector by a positioning device ensuring the orientation of its direction of action towards the payload.

Abstract: An ignition device for a propellant charge contained in a cylindrical case of a munition, said device comprising at least one linear energetic element and means to ignite said element, and characterised in that the ignition means comprise a tubular part, placed at a bottom cap part of the case and delimiting a chamber that communicates with a pyrotechnic igniting component, said tubular part comprising an axial hole intended to allow the passage and entry into the chamber of the linear igniting element or elements arranged substantially along the case axis.

Abstract: The invention relates to a plasma torch (1) comprising at least two electrodes (7, 8) separated by a cylindrical insulating case (6) delimiting an internal volume, said electrodes connected by a conductive ignition fuse (11) placed in the internal volume. This torch is characterized in that the fuse (11) comprises at least one conductive material associated with at least one energetic material or one able to react with the conductive material. Application to the ignition of the propellant charge of a munition.

Abstract: A propellant charge ignition device having one or more ignition means and incorporating one or more diffuser tube(s) extending through a part of the propellant charge. The structure permits a flame generated by the ignition means to be guided up to a propellant charge receiver zone. There is also disclosed a propellant charge incorporating one or more block(s) of agglomerated propellant powder, the block having at least one closed-ended ignition channel for receiving a diffuser tube of the propellant charge ignition device.

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: A track-laying assistance device to hold, at ground-level, a raised end of an opened track having pre-angled connectors, wherein the track-laying assistance device comprises a first element fastened to the part of the track held to the ground and a second mobile element able to be dismounted with respect to the first element and able to push back to ground-level a raised end of the track to allow the vehicle to engage in it. The device may be activated mechanically, hydraulically or pneumatically and is applicable to tracked vehicles.

Abstract: The invention relates to a pyrotechnically releasable mechanical linking device between a first and second mechanical element, said first and second elements likely to be subjected to tensile and/or compressive force along an axis, said device comprising at least one pyrotechnic component and at least one locking means linking the two mechanical elements along at least one axis, said locking means able to be released when the mechanical elements are subjected to tensile and/or compressive forces along said axis and that is held in its locking position by retention means that are released by the pressure of gases generated by igniting the pyrotechnic component, device wherein the retention means comprise a cap integral with a head carrying the pyrotechnic component or else forming a head in itself carrying the pyrotechnic component.