A device is provided. The device includes at least one SMM component fabricated from an SMM. The SMM component is configured to change shape in response to receiving a stimulus. The SMM component is also configured to deploy from a device body of the device allowing the device to change shape in an advantageous way. A method implemented by a device is also provided. The method includes changing a shape of an SMM component of the device in response to receiving a stimulus. The SMM component is fabricated from an SMM. The method also includes deploying the SMM component from a device body of the device allowing the device to change shape in an advantageous way.

A streamlined projectile is disclosed that includes a base or rear having a plurality of concentric sections located within each other at the aft of the projectile and in successively smaller sizes. Within each concentric section is a chamber having a wall perpendicular to expanding combustion gasses, with the total area of these walls being greater than an area of the rear of the projectile itself. This creates a larger projectile base for a propellant to push against and for that explosion to be held within the section chamber for a longer period than that of a standard boattail or flat-tail projectile. In addition, the concentric sections at least partially negate atmospheric drag by occupying the region behind the projectile where a partial vacuum forms, resulting in a projectile that will go faster and further for a given propellant charge.

A streamlined projectile is disclosed that includes a base or rear having a plurality of concentric sections located within each other at the aft of the projectile and in successively smaller sizes. Within each concentric section is a chamber having a wall perpendicular to expanding combustion gasses, with the total area of these walls being greater than an area of the rear of the projectile itself. This creates a larger projectile base for a propellant to push against and for that explosion to be held within the section chamber for a longer period than that of a standard boattail or flat-tail projectile. In addition, the concentric sections at least partially negate atmospheric drag by occupying the region behind the projectile where a partial vacuum forms, resulting in a projectile that will go faster and further for a given propellant charge.

A projectile with a projectile casing and at least one pyrotechnic charge incorporated in the projectile casing is proposed, wherein the projectile has an open projectile base with a destructible membrane and the pyrotechnic charge burns away at a defined rate during the flight of the projectile, and so the projectile loses mass in such a way that a predetermined effective range is not exceeded. As a result, safety and a nonlethal effect are achieved, in particular outside the effective range.

A drag reduction system, more specifically a forward mounted drag reduction system for use on an extended range artillery shell, includes a forward end comprising a fuse, an aft located base unit and located therebetween a shell body defining a cavity which comprises a payload, a forwardly located gas generator capable of generating a gas flow, and an ignition device to ignite the gas generator after the shell is launched.

A drag reduction system, more specifically a forward mounted drag reduction system for use on an extended range artillery shell, includes a forward end comprising a fuse, an aft located base unit and located therebetween a shell body defining a cavity which comprises a payload, a forwardly located gas generator capable of generating a gas flow, and an ignition device to ignite the gas generator after the shell is launched.

A bullet system (1) for use with a weapon upon firing, the bullet system (1) including a main body (3) acting as a projectile, as well as a first, second and third drag-reducing assemblies (5a, 5b, 5c) for providing the bullet system (1) with reductions of base drag, frontal drag and skin drag, during flight trajectory, the drag-reducing assemblies (5a, 5b, 5c) being fluidly connectable to one another via a common longitudinal channel (11), and the most frontward (5b) of said drag-reducing assemblies (5a, 5b, 5c) being provided with a material capable of being converted into an operative vapor discharge to be released from an orifice located at the bullet tip for covering the outer surface of the main body (3) of the bullet system (1) with said operative vapor discharge during flight, and thus, reducing the skin and frontal drag of the bullet system (1) during flight; wherein the first drag-reducing assembly (5a) is being provided about a rearward portion of the main body (3) for providing the bullet (1) with a reduction of base drag during flight trajectory.

A bullet system (1) for use with a weapon upon firing, the bullet system (1) including a main body (3) acting as a projectile, as well as a first, second and third drag-reducing assemblies (5a, 5b, 5c) for providing the bullet system (1) with reductions of base drag, frontal drag and skin drag, during flight trajectory, the drag-reducing assemblies (5a, 5b, 5c) being fluidly connectable to one another via a common longitudinal channel (11), and the most frontward (5b) of said drag-reducing assemblies (5a, 5b, 5c) being provided with a material capable of being converted into an operative vapor discharge to be released from an orifice located at the bullet tip for covering the outer surface of the main body (3) of the bullet system (1) with said operative vapor discharge during flight, and thus, reducing the skin and frontal drag of the bullet system (1) during flight; wherein the first drag-reducing assembly (5a) is being provided about a rearward portion of the main body (3) for providing the bullet (1) with a reduction of base drag during flight trajectory.

Ammunition cartridge comprising a rigid casing including a tubular sleeve and a base closing an end of the casing, a projectile mounted at another end of the casing, a propellant charge contained inside the casing, and an ignition device. The ignition device comprises an ignition charge arranged to ignite the propellant charge at a point of ignition distal from the base and proximal the projectile.

Ammunition cartridge comprising a rigid casing including a tubular sleeve and a base closing an end of the casing, a projectile mounted at another end of the casing, a propellant charge contained inside the casing, and an ignition device. The ignition device comprises an ignition charge arranged to ignite the propellant charge at a point of ignition distal from the base and proximal the projectile.