This invention describes embodiments of door breaching grenades (100,100a,100b,100c,100d). Each grenade comprises a projectile (101,101a,101b,101c,101d) coupled to a propulsion cartridge (105); each projectile comprises a shell (110), a body member (140) and an ogive (180). A safe-and-arm mechanism (150) is located in the body member. A seat member (160) and a plunger (166) are assembled on a forward face of the body member so that a leading end of the plunger is in contact with an inside tip surface of the ogive, or a hollow guide member (184) is integrally formed with an inside tip surface of the ogive. In the armed state, upon impacting on a door/barricade (5), the plunger or hollow guide/sleeve impinges on a detonator pin (164), which then sets off a chain of explosive charges (152, 120, 122) whilst the projectile is still outside the door/barricade. The grenade is made substantially of polymer parts.

A stand-off breaching device (20) for breaching a barrier, comprising a housing (21), an explosive main charge (24) having a barrier-end (25) and a rear-end (26), a detonator (29), and means for initiating the detonator (27) when the explosive main charge (24) is at a preselected distance from a barrier. The detonator (29) is configured to detonate explosive main charge (24) at the rear-end (26) such that the resultant detonation wave propagates through the explosive main charge (24) towards the barrier-end (25) and the barrier being breached. This configuration provides more efficient transfer of explosively generated overpressure towards a barrier, thereby enabling the use of explosive main charges (24) with reduced mass, and the associated improvements in operator safety. The breaching device (20) is particularly suited to use in door breaching operations.

According to a first aspect of the invention, there is provided an object for moving through a fluid, the object comprising: an outer housing, arranged to be exposed to a hydrostatic pressure exerted by the fluid; a strain gauge, arranged to obtain an indication of the hydrostatic pressure, wherein a first part of the strain gauge is arranged to be in contact with the outer housing, such that the strain gauge is arranged to obtain an indication of the hydrostatic pressure by obtaining an indication of the strain on the housing.

An enhanced breaching round and techniques for manufacturing such are provided. A breaching round includes a case defining a volume, a propellant disposed in the volume of the case, and a projectile coupled to the case. The projectile may include a body disposed at least partially within the case and configured to enclose the propellant within the volume of the case. The body may be formed of a castable eutectic mixture configured to be melted and cast, wherein the body is configured to break into a plurality of fragments upon impact with a target. A cavity may be disposed between the proximal end and the distal end of the body, and a reactive material disposed in the cavity, the reactive material comprising at least one oxidizer and at least one fuel.

A sub-caliber projectile of the kinetic energy type comprising a perforating rod surrounded by a sabot made of light material and allowing the projectile to be fired from a weapon, the rod being extended by a stabilizing tail. The tail is connected to the rod by a connection means that can be broken, the breaking being initiated by a control means integral with the projectile. The control means comprises a timing module which is connected to a programming interface and which is programmed before firing or during firing so as to ensure the breaking of the connection means at a reference distance relative to a target which is to be neutralized. The invention also relates to a method of neutralizing a target using such a sub-caliber projectile.

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.

An enhanced breaching round and techniques for manufacturing such are provided. A breaching round includes a case defining a volume, a propellant disposed in the volume of the case, and a projectile coupled to the case. The projectile may include a body disposed at least partially within the case and configured to enclose the propellant within the volume of the case. The body may be formed of a castable eutectic mixture configured to be melted and cast, wherein the body is configured to break into a plurality of fragments upon impact with a target. A cavity may be disposed between the proximal end and the distal end of the body, and a reactive material disposed in the cavity, the reactive material comprising at least one oxidizer and at least one fuel.

According to an aspect of the invention, there is provided a fuze arming system for a submunition, comprising: a first stage, arranged to detect launch of the submunition and its associated carrier; a second stage, arranged to detect expulsion of the submunition from the carrier, and to at least partially arm a submunition fuze based on such detection; wherein the second stage is unable to at least partially arm the submunition fuze without the first stage detecting launch of the submunition and its associated carrier.

An enhanced breaching round and techniques for manufacturing such are provided. A breaching round includes a case defining a volume, a propellant disposed in the volume of the case, and a projectile coupled to the case. The projectile may include a body disposed at least partially within the case and configured to enclose the propellant within the volume of the case. The body may be formed of a castable eutectic mixture configured to be melted and cast, wherein the body is configured to break into a plurality of fragments upon impact with a target. A cavity may be disposed between the proximal end and the distal end of the body, and a reactive material disposed in the cavity, the reactive material comprising at least one oxidizer and at least one fuel.

According to a first aspect of the present invention, there is provided a munition assembly, arranged to be launched from a gun, the assembly comprising: a carrier for a submunition, the carrier comprising a cavity in which the submunition is located; and a submunition, carried by the carrier in the cavity, the submunition arranged to be controllably expelled from the carrier; the submunition comprising: a submunition explosive charge; and a submunition fuze, wherein: the munition assembly is adapted to be launched, into the air, from a gun barrel, where the submunition is then arranged to be controllably expelled from the carrier and enter a body of water; and the submunition fuze is adapted to trigger the submunition explosive charge under water.