The invention relates to a penetrating and explosive projectile (1) provided with a trajectory-stabilizing fin assembly (8) which is secured to a body of the projectile by a mechanical connection. The fin assembly (8) includes a tapped tube (14) which engages on a threaded rear cylindrical shank (10) of a tail (9) connected to the projectile body (2), thereby forming a threaded mechanical connection (13) between the tail unit (8) and the body (2). This projectile (1) is characterized in that it includes means ensuring the fragilization of the threaded connection (13) on impact on a target, the fin assembly then separating from the projectile body.

The invention relates to a penetrating and explosive projectile (1) provided with a trajectory-stabilizing fin assembly (8) which is secured to a body of the projectile by a mechanical connection. The fin assembly (8) includes a tapped tube (14) which engages on a threaded rear cylindrical shank (10) of a tail (9) connected to the projectile body (2), thereby forming a threaded mechanical connection (13) between the tail unit (8) and the body (2). This projectile (1) is characterized in that it includes means ensuring the fragilization of the threaded connection (13) on impact on a target, the fin assembly then separating from the projectile body.

The invention relates to a penetrating and explosive projectile (1) provided with a trajectory-stabilizing fin assembly (8) which is secured to a body of the projectile by a mechanical connection. The fin assembly (8) includes a tapped tube (14) which engages on a threaded rear cylindrical shank (10) of a tail (9) connected to the projectile body (2), thereby forming a threaded mechanical connection (13) between the tail unit (8) and the body (2). This projectile (1) is characterized in that it includes means ensuring the fragilization of the threaded connection (13) on impact on a target, the fin assembly then separating from the projectile body.

The invention relates to a penetrating and explosive projectile (1) provided with a trajectory-stabilizing fin assembly (8) which is secured to a body of the projectile by a mechanical connection. The fin assembly (8) includes a tapped tube (14) which engages on a threaded rear cylindrical shank (10) of a tail (9) connected to the projectile body (2), thereby forming a threaded mechanical connection (13) between the tail unit (8) and the body (2). This projectile (1) is characterized in that it includes means ensuring the fragilization of the threaded connection (13) on impact on a target, the fin assembly then separating from the projectile body.

The invention relates to a percussion fuse having an active sensor, which generates a sensor voltage, having a filter circuit consisting of a high pass and at least one low pass, in order to be able to adjust dynamic percussion characteristics. The invention further relates to an operating state switch, which can transition the percussion fuse into one of two operating states, specifically into an activated and a deactivated operating state. To this end, the operating state switch is switched into one of the two operating states by means of a safety voltage. In the active operating state, the sensor voltage is supplied directly to the threshold value switch and in the deactivated operating state, the sensor voltage is held below the threshold value of the threshold value switch by an input limiter.

The invention relates to a percussion fuse having an active sensor, which generates a sensor voltage, having a filter circuit consisting of a high pass and at least one low pass, in order to be able to adjust dynamic percussion characteristics. The invention further relates to an operating state switch, which can transition the percussion fuse into one of two operating states, specifically into an activated and a deactivated operating state. To this end, the operating state switch is switched into one of the two operating states by means of a safety voltage. In the active operating state, the sensor voltage is supplied directly to the threshold value switch and in the deactivated operating state, the sensor voltage is held below the threshold value of the threshold value switch by an input limiter.

An ammunition round comprises an optimized projectile incorporating a hardened penetrator and a dual safe-fuze for a medium caliber high rate of fire round packaged into a form factor smaller than currently available multi-purpose rounds. The ammunition round incorporates a hardened segment penetrator followed by a point detonated high explosive warhead that substantially increases the terminal performance against both materiel and personnel targets. The hardened segment penetrator localizes the kinetic, energy of the projectile to increase target penetration prior to the initiation of the high explosive warhead.

A method for detecting hardened bunkers within a target, the method including: producing a first output from a sensor fired to travel through the hardened bunkers, the first output being different from a second output when the sensor travels in a void between the hardened bunkers or encounters other objects outside of the hardened bunkers; and determining one or more of the number of hardened bunkers, a thickness of the hardened bunkers and a strength of the hardened bunkers based on the first and second outputs of the sensor over time. The sensor can include one of a piezoelectric generator for producing a voltage output and a circuit input by the voltage output or an accelerometer having a locking member for locking a proof mass during periods of impact with the one or more hardened bunkers.

A method for detecting hardened bunkers within a target, the method including: producing a first output from a sensor fired to travel through the hardened bunkers, the first output being different from a second output when the sensor travels in a void between the hardened bunkers or encounters other objects outside of the hardened bunkers; and determining one or more of the number of hardened bunkers, a thickness of the hardened bunkers and a strength of the hardened bunkers based on the first and second outputs of the sensor over time. The sensor can include one of a piezoelectric generator for producing a voltage output and a circuit input by the voltage output or an accelerometer having a locking member for locking a proof mass during periods of impact with the one or more hardened bunkers.

Hardened target sensors and systems are described herein. An example system includes a projectile defining an ogive, a body, and a base. The body of the projectile is arranged between the ogive and the base. The system includes a sensor assembly including a nose member and a plurality of strain gauges. The nose member defines a nose portion, a shaft, portion, and a threaded portion. The strain gauges are attached to the shaft portion. The system includes a shroud member, which is mechanically coupled with the sensor assembly and the body. The system further includes a smart fuze arranged within the body. The smart fuze is operably coupled to the strain gauges. The strain gauges measure the compression/tension of the shaft portion, which is part of the nose member. The load measured by the strain gauges can be used to detect hardened target layers and/or voids.