Abstract: An underwater device intended to be deployed in the water, the device includes a set of arms articulated to a support body having a reference axis r, the arms being able to be kept in a furled configuration and able to deploy into a deployed configuration wherein the arms extend about the reference axis r, the arms deploying by distal ends of the arms moving away from the axis r, a set of at least one bending spring stressed elastically in bending when the arms are kept in a furled configuration and able to relax when the arms are released from the furled configuration, the set of at least one bending spring being configured and arranged in such a way as to exert, on at least one of the arms, when the arms are released from the furled configuration, a thrust that instigates the deploying of the arms.

Abstract: An underwater device intended to be deployed in the water, the device includes a set of arms articulated to a support body having a reference axis r, the arms being able to be kept in a furled configuration and able to deploy into a deployed configuration wherein the arms extend about the reference axis r, the arms deploying by distal ends of the arms moving away from the axis r, a set of at least one bending spring stressed elastically in bending when the arms are kept in a furled configuration and able to relax when the arms are released from the furled configuration, the set of at least one bending spring being configured and arranged in such a way as to exert, on at least one of the arms, when the arms are released from the furled configuration, a thrust that instigates the deploying of the arms.

Abstract: Abrasive articles comprising a reduction layer configured to reduce noise level when the abrasive articles are in use.

Abstract: Abrasive articles comprising a reduction layer configured to reduce noise level when the abrasive articles are in use.

Abstract: A device that allows control of the navigation of a towed underwater device, such as a linear acoustic antenna. The device is equipped with a pair of horizontal wings and a pair of vertical wings. These wings are kept horizontal and vertical by pendular movement of the device about the antenna on which the device is fixed. The action of the horizontal wings, which influence only immersion, and of the vertical wings, which influence only the lateral offset, are thus decoupled. The power consumption of the device is reduced, thus allowing the device to be powered by internal batteries and allowing the device to be mounted on existing antennas.

Abstract: The invention relates to the “birds” which allow control of the navigation of a towed linear acoustic antenna.

Abstract: A projectile with rear and front sections able to deliver payloads of submunitions contained inside the projectile after separation of the rear from the front section. The rear section is fitted with an assembly of thin blades. When both sections are assembled, the blades are partially in the rear section and partially in the front section, and when the two sections are separated, the blades spread out. The assembly is such that the length of blade that spreads out is greater than the length of blade that was in the front section before separation of the two section.

Abstract: A projectile with rear and front sections able to deliver payloads of submunitions contained inside the projectile after separation of the rear from the front section. The rear section is fitted with an assembly of thin blades. When both sections are assembled, the blades are partially in the rear section and partially in the front section, and when the two sections are separated, the blades spread out. The assembly is such that the length of blade that spreads out is greater than the length of blade that was in the front section before separation of the two section.