Abstract: An acoustic array platform comprising multiple spaced microphones and associated processing electronics/algorithms projects distinct beams in a chosen look direction across which moving objects such as vehicles pass. These moving objects are accurately detected, classified and counted at extended ranges. The acoustic microphone array employs optimized beamforming to create specially focused listening directions that function as a “motion detector” and “trip line counter”. Algorithms detect and confirm the appropriate presence of objects moving through the beams and perform other algorithmic tests to verify that the object is a valid object to be counted. The proposed approach is realized with modest sized acoustic arrays and a reasonable number of microphones by employing an adaptive beamforming algorithm that achieves enhanced directivity in a principal look direction and which significantly reduces the effects of interferers outside the precise steering direction of the “trip line”.

Abstract: A restraining net launching device includes a planar restraining net which is tightly packed into a cylindrical shape having an outside portion. This restraining net, when planar or unfurled, includes a perimeter which is heavier than a remainder of the net. A launcher is provided in which the packed net is loaded, and from which the packed net is launched toward a target when desired. The launcher includes rifling which engages the outside portion of the packed net during launching. A source of propelling gas is used for propelling the tightly packed restraining net out of the launcher during launching. When the launching device is fired, the rifling of the launcher engages the outside portion of the packed restraining net to cause the tightly packed restraining net to rotate about the longitudinal axis and hence to unfurl after exiting the launcher with the heavier perimeter radially outermost.

Abstract: A protector for propelling charge increments on a mortar shell includes a semi-cylindrical body, the semi-cylindrical body arranged around a bottom and sides of the charge increments; two generally horseshoe shaped end plates attached to a front and a rear of the semi-cylindrical body, the end plates defining openings therein, the tail tube of the mortar fitting in the opening in each end plate, the charge increments being disposed between the two end plates; a wedge-shaped boom attached to the rear end plate, the wedge-shaped boom fitting between two fins on the fin portion of the mortar shell; a stop tab attached to a rear end of the wedge-shaped boom, the stop tab extending substantially perpendicular to a narrow side of the wedge-shaped boom to contact an end of the fin portion thereby minimizing longitudinal motion of the charge increments; and a nose cone attached at the front of the semi-cylindrical body, the nose cone defining an opening at its front end, the middle portion of the mortar shell fitting

Abstract: A bipod has a base attached to the weapon and a pair of legs which extend in a use position from the base downwards and outwards. Each leg includes an inner member having a pointed distal end and a proximal end attached to the base, and an outer member which freely slides relative to the inner member. The outer member includes a foot through which the pointed distal end extends when the outer member is in an retracted position and hence the pointed distal end is in an exposed position. Each leg also includes a holding mechanism which holds the outer member relative to the inner member such that the pointed distal end is located within the outer member adjacent the aperture of the foot when the outer member is in an extended position and hence the pointed distal end is in a withdrawn or protected position.

Abstract: The forward mounting rail system for fire control and other accessories for attachment to automatic and semi-automatic; weapon providing three additional MIL-STD-1913 mounting rails to supplement the one standard MIL-STD-1913 mounting rail currently used on the M249 SAW. The forward mounting rail system for the 5.56 mm M249 Squad Automatic Weapon) consists of a two piece base which attaches directly to the M249 SAW using existing holes in the receiver of the said weapon. The two piece configuration facilitates ease of use and manufacture by reducing the number of parts required to affix the mounting rail on the weapon.

Abstract: A non-lethal cargo projectile includes a projectile body; a nose cap attached to a front of the projectile body; a boattail attached to a rear of the projectile body; a fin assembly including a boom attached to the boattail; a parachute assembly disposed in a front of the projectile body; a cable connecting the parachute assembly to the boattail; a fuze disposed in the boattail; a first pair of half cylinders disposed in the projectile body behind the parachute assembly; a first circular disc disposed at a front end of the first pair of half cylinders and a second circular disc disposed at a rear end of the first pair of half cylinders; a second pair of half cylinders disposed in the projectile body in front of the first circular disc enclose the parachute assembly; and a payload disposed in a space defined by the first pair of half cylinders and the first and second circular discs.

Abstract: A semi permanent backup iron sight is adapted for attachment to, and detachment from a weapon while other devices are still attached to the weapon. The iron sight comprises a base formed of two vertical rails and an interconnecting member that allows the base to flex for securing the iron sight on the weapon; a sight aperture assembly formed of a sight aperture, a sight aperture frame, a sight aperture spring, and a sight aperture pivot pin; an elevation cam assembly formed of an elevation cam, a retaining clip, an elevation cam spring and keeper, and a detent spring and a ball detent; and a windage mechanism. The base provides a mounting interface for the sight aperture assembly, elevation cam assembly, and windage mechanism. The elevation cam assembly has an elevation scale located in a position that allows the shooter to see the elevation scale without moving his or her head from the shooting position.

Abstract: A composite monopack container for mortar ammunition is lightweight, universally adaptable to all existing ammunition types, is capable of fully protecting ammunition without the need of a metal overpack, and is relatively inexpensive to produce, maintain and dispose. The container is also fully back-compatible enables a quicker ammunition re-supply and greater ammunition availability on the battlefield. The monopack container comprises a cap, a main body, a latch assembly that locks the cap and the main body, a pair of alignment features that mate with two corresponding alignment channels on the main body, and three stacking indices that prevent the container from rolling, and that make it stackable with other composite containers.

Abstract: An apparatus 10 is provided for initially slowing a backwards extraction movement of a bolt group 12 of a weapon which moves backward automatically after firing and against a force of a return drive spring 14. The apparatus includes first and second longitudinal members 16, 30 having respective distal ends and proximal ends. A mounting mechanism is provided for mounting the first and second members for longitudinal movement of the first member relative to the second member and adjacent the drive spring, with the drive spring urging the first and second members apart and against the bolt group. A retarding mechanism 36 is provided for retarding an initial backwards movement of the first proximal end relative to the second distal end, and for allowing a relatively free further backwards movement of the first proximal end relative to the second distal end as the bolt group moves backwards after firing.

Abstract: Methods and apparatus related to design and construction of lightweight and mobile rail gun barrels. The barrels comprise a pair of elongated, generally parallel conductive rails extending along opposite sides of the bore and being symmetrical about a longitudinal axis of the bore; a pair of elongated insulators disposed generally coextensively with the rails and circumferentially between them and maintained in a compressed state; a circumferentially sleeve surrounding the insulators; a plurality of Belleville containment disk maintained in a stack that are compressed and surround the circumferential sleeve, each containment disk having a substantially hollow form with an outer surface, and an inner surface; and a plurality of longitudinal tension rods, disposed substantially parallel to the longitudinal axis of they bore and disposed external to the sleeve, the tension rods compress the plurality of Belleville containment disk. A protective sleeve and cooling channels can form part of the barrel.

Abstract: A non-lethal projectile includes a projectile body; a fuze disposed in a rear of the projectile body; an expelling charge disposed adjacent the fuze; a wad disposed adjacent the expelling charge; a dense powder ballast disposed adjacent the wad; a non-lethal payload disposed adjacent the dense powder ballast; and an end cap disposed on a front end of the projectile body; wherein the expelling charge expels the dense powder ballast and non-lethal payload and reduces the forward kinetic energy of the projectile body and the fuze to one of a near non-lethal or non-lethal level such that as the projectile body and the fuze travel from a burst point to a target impact a residual kinetic energy of the projectile body and the fuze is non-lethal.

Abstract: An autonomous onboard absolute position and orientation referencing system provides a means of efficaciously and economically embedding guidance and control components into the fins of supersonic, highly maneuverable small, medium-caliber and long range munitions. Embedded resonant cavities form an integral part of the referencing system. The magnitude and phase information received by the integral antennas is used to determine the munition orientation. Embedded sensors provide continuous, onboard information about the angular orientation of the munition, such as its pitch, yaw, and roll angles, as well as its absolute position relative to a ground station.

Abstract: A safing and arming device is provided for a warhead or round which is to be launched by a rifled gun and which includes submunitions. A slider is disposed in a housing between a detonator and lead cup and is movable between a first, safe position wherein the slider acts as an interrupter and a second, armed position wherein an opening in the slider is in alignment with the detonator and lead cup. A setback sensor initially locks the slider in the safe position and then, responsive to a setback force produced at gun launch, unlocks the slider. An ejection sensor also initially locks the slider in the safe position and continues to lock the slider against movement to the armed position during a period between gun launch and exiting of the warhead from the gun. Responsive to the ejection force produced at exiting of the warhead from the gun, the ejection sensor unlocks the slider to enable movement thereof to the armed position.

Abstract: An anti-personnel canister includes a generally cylindrical container having side walls, the side walls defining an enclosure with a generally concave surface at one end and an opening at another end; the side walls having an outer surface, the outer surface including a plurality of longitudinal grooves formed therein and, below the plurality of longitudinal grooves, a circumferential obturator groove; a plurality of submunitions disposed in the enclosure; a spacer disposed in the enclosure between the plurality of submunitions and the opening; and a cap disposed on the opening of the container, the cap having a top surface and including a pair of orthogonal grooves formed on the top surface.

Abstract: A system and method for improving the process of mechanical translation of projectiles by a spring mechanism that is built of a smart material and that is activated by an electric pulse, to provide a controlled translation of a projectile before firing or, in case of pre-firing termination, in order to restore the projectile to its original position after translation. The pre-firing translation using the spring mechanism provides a more controlled process and reduces the risk associated with the conventional propulsion charge translation design. The ability to return the projectile to its initial state after translation affords a significant advantage over the conventional propulsion charge design since it enables the projectile firing to be terminated even after translation, unlike in the conventional design whereby the projectile firing is irreversible upon a mechanical translation by setting off the propulsion charge.

Abstract: An infrasonic Helmholtz resonator capable of producing clean sinusoidal frequencies in the range of 6-14 Hz is described.

Abstract: A fuze explosive train device for detonating a munition that uses a stab firing pin within a pressure cartridge, with the stab firing pin located between a gas generator and a stab detonator. The firing pin is capable of transferring an energy from the gas generator into the stab detonator in a manner that initiates the stab detonator to a high order explosive reaction. A method of initiating a stab detonator using a stab firing pin also is disclosed.

Abstract: A system for controlling the trajectory of a launched projectile. More particularly, a method for correcting the projectile jump displacement of a launched projectile after it is released from a vessel using on-board G-hardened accelerometers orthogonally mounted along the longitudinal axis of the projectile. Deviation from an intended flight path is corrected by firing selected trajectory diverting thrusters mounted around the periphery of the projectile. Eliminating or reducing projectile jump, or the angular deviation of the flight path of a projectile relative to its intended trajectory, will greatly increase the accuracy of gun fired projectiles.

Abstract: An apparatus and process are shown for the application of welded metal overlay deposits to cylindrical substrates for use in wear, chemical, and temperature resistance. More specifically, this apparatus permits the application of welded overlay rotating bands to steel and other alloy artillery projectiles having narrow sidewall thick nesses.

Abstract: A long-range training cartridge meets current US Army requirements. The long-range cartridge design enables its sub-projectile to be range limited to less than 8000 meters when fired at a 10-degree gun elevation. The long-range training projectile includes a three-piece aluminum or steel sabot with a similar exterior profile to the kinetic energy tactical sabot. The sabot encapsulates a light-weight sub-projectile comprised of a steel rod and an aluminum fin or cone. Since the sub-projectile is encapsulated in the sabot, it will not be subjected to differential pressures associated with interior ballistic gun gasses. As a result the sub-projectile will therefore have less bending and better flight characteristics. The sub-projectile meets the guidelines for target accuracy and precision at ranges beyond 3000 meters.