According to an aspect of the invention, there is provided a method of triggering an explosive charge of each of a plurality of munitions, the method comprising: launching a first munition, into the air, from a first gun barrel, and into water to engage with a target location, the first munition comprising a first explosive charge and a first fuze system, adapted to trigger the first explosive charge in the water, launching a second munition, into the air, from a second gun barrel, and into water to engage with the target location, the second munition comprising an second explosive charge and a second fuze system, adapted to trigger the second explosive charge in the water, the method comprising co-ordinating the timing of the triggering of the first explosive charge and the second explosive charge to establish a co-ordinated explosive event at the target location.

Munitions structures comprising one or more high strength reactive alloys, in particular reactive bulk metallic glasses, have significant amounts of inherent chemical energy. This energy may be discharged by subjection of the munitions structure to rapid impulsive loading and fragmentation in the presence of oxygen and/or nitrogen. A munitions structure can be configured in both large and small penetrators, e.g. warheads and bullets, with increased lethality. The lethality of these munitions structures is augmented by means of rapidly and simultaneously imparting both mechanical energy (kinetic energy through impact and fragmentation) and chemical energy (blast and/or fireball) to a target. A high-strength reactive alloy can substitute at least in part one or both of explosives and inert structural materials in conventional munitions systems to improve performance and reduce parasitic weight of structural casing.

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.

A device includes a cylindrical lattice structure inside of a cylindrical tube. The cylindrical lattice structure includes compartmentalized one or more longitudinal flowable paths formed by an additive manufacturing process. A material is introduced in a flowable state into one or more upper apertures of the one or more longitudinal flowable paths to fill the cylindrical lattice structure in a compartmentalized arrangement that provides stiffness to the device.

Embodiments are directed to a vented torque release device having a proximal end, a distal end, an inner surface, and an outer surface. A wall is defined by the inner surface and the outer surface. A plurality of canted holes are axially spaced at equal distance about the outer surface.

An ordnance for air-borne delivery to a target under remotely controlled in-flight navigation. In one embodiment, self-powered aerial ordnance includes upper and lower cases. A plurality of co-axial, deployable blades is powered by a motor positioned in the upper case. When deployed, the blades are rotatable about the upper case to impart thrust and bring the vehicle to a first altitude above a target position. An explosive material and a camera are positioned in a lower case which is attached to the upper case. The camera generates a view along the ground plane and above the target when the ordinance is in flight. When the vehicle is deployed it is remotely controllable to deliver the vehicle to the target to detonate the explosive at the target. The ordnance may drop directly on a target as a bomb does.

Disclosed are an airburst munition and an airburst signal transfer device. By simply signaling information regarding a distance to an explosion location of the airburst munition to an explosion control system inside the airburst munition while the airburst munition passes through a tubular body of the airburst signal transfer device, it is possible to easily, simply, and automatically enter the information regarding the distance to the explosion location of the airburst munition to the airburst munition using the airburst signal transfer device.

Embodiments are directed to direct impingement cook-off mitigation systems. As assembled, a munition fuzewell is torqued into the aft end of a munition. During a cook-off event, the expanding gases from the booster energetic will burn instead of detonating. The hot expanding booster gases are vented to the munition's main fill energetic causing the main fill energetic to burn concurrently with the booster energetic. The combined expanding gases from both the booster and main fill energetics are then vented through longitudinal vents.

A method, a device, and a system using the device, for avalanche control using an unmanned aerial vehicle to transport an explosive charge to a snow surface or snowpack. A holder of the device holds the explosive charge in a container. A receiver of the device receives a release signal. The holder releases the explosive charge in response to the release signal. A coupler couples the holder to the unmanned aerial vehicle. The explosive charge is fuzed to detonate after release from the holder to trigger an avalanche.

Embodiments employ venting features and damping components both inside and concentric to a fuzewell to improve munition fuze survivability. Damping components are selected based on their densities and stiffness properties. A shock damping liner with longitudinal grooves is affixed to an inner surface of the fuzewell and envelops the fuze. At least one shock damping collar constrains and attenuates shock experienced by the fuze. A shock damping ring is concentric about the outer surface of the fuzewell and attenuates shock between the outermost munition system layer (the casing) and the fuzewell. Longitudinal vents in the fuzewell wall and radial apertures oriented transverse to the longitudinal vents are used for off-gassing. The venting and component orientation combination provides increased damping, resulting in impedance mismatches across multiple interface surfaces in the munition, which reduces shock vibrational pressures and stresses transferred to the fuze.