A jacket projectile, in particular an armour-piercing projectile, for ammunition, such as with a caliber of less than 13 mm, may include a core, a jacket, in particular tapering ogive-like and surrounding the core, and a guide shoe arranged between the core and the jacket. The guide shoe and the jacket may have a matching, in particular form-fitting interlocking, rib-recess structure.

A jacket projectile, in particular an armour-piercing projectile, for ammunition, such as with a caliber of less than 13 mm, may include a core, a jacket, in particular tapering ogive-like and surrounding the core, and a guide shoe arranged between the core and the jacket. The guide shoe and the jacket may have a matching, in particular form-fitting interlocking, rib-recess structure.

Methods, systems, and devices solving Euler's rotational rigid body equation of motion, formed within two non-inertial frames of reference, that determine the vector inconstant variables of angular acceleration, velocity, and trajectory using a single piezoresistive accelerometer sensor, an ?C coupling algorithm and 1.sup.st and 2.sup.nd running integrals to in-flight acquire rotational inconstants in high-density Terramedia Terraflight and determine a Penetrator's loading profiles and method to parse vector Terraflight for rotational Pitch and Yaw enabling precision trajectory tracking utilizing three axial facing piezoresistive accelerometers, a differencing algorithm and 1.sup.st and 2.sup.nd running integrals enabling Penetrator flight control and precision guidance.

A projectile has a body with an axis and a meplat disposed substantially orthogonal to the axis. The meplat is bounded by a substantially square edge.

A projectile has a body with an axis and a meplat disposed substantially orthogonal to the axis. The meplat is bounded by a substantially square edge.

A munition, such as a warhead, includes a penetrator casing for penetrating hard targets, such as a fortification or reinforced building or other structure. The penetrator casing has a relatively thick nose, and a relatively thin aft section extending back from the nose. A cable interface is in the aft section, and a electrical harness extends from the cable interface, external of the casing, and forward to a nose kit. The penetrator casing may have reduced-thickness portions, to provide weakness points to the casing that facilitate the casing being transformed into fragments of a semi-controlled and desirable size when an explosive within the casing is detonated after the penetration occurs, thus enhancing the effectiveness of the munition.

A munition may include a warhead, such as a penetrator warhead, enclosed in airframe. The airframe may enable connection to standard mountings, and/or to standard nose kits or tail kits. The airframe may have preformed fragments in it, packed between the airframe and the warhead. The preformed fragments may be loose, may be packed in a potting material, or may be in flexible bags. The fragments may enhance performance of the munition. The warhead may also contain preformed fragments.

A weapon and weapon system, and methods of manufacturing and operating the same. In one embodiment, the weapon includes a warhead including destructive elements and a guidance section with a seeker configured to guide the weapon to a target. The seeker includes a detector configured to receive a distorted signal impinging on an objective lens from the target, memory configured to store target criteria and a correction map, and a processor configured to provide a correction signal based on the distorted signal, the target criteria and the correction map to guide the weapon to the target.

A weapon and weapon system, and methods of manufacturing and operating the same. In one embodiment, the weapon includes a warhead including destructive elements and a guidance section with a seeker configured to guide the weapon to a target. The seeker includes a detector configured to receive a distorted signal impinging on an objective lens from the target, memory configured to store target criteria and a correction map, and a processor configured to provide a correction signal based on the distorted signal, the target criteria and the correction map to guide the weapon to the target.

A munition has a penetrator casing that houses a fuel-oxidizer mixture within the casing. A height of burst fuze is operatively coupled to the fuel-oxidizer mixture, to ignite the fuel-oxidizer mixture before impact with the target. By igniting the fuel-oxidizer mixture before target impact, the munition avoids the problem of the impact potentially causing damage to the fuze that would leave the fuze in operable. The fuel-oxidizer mixture may cause injury and damage into a space that has been breached by the penetrator casing, for example by expelling lethal combustion products (hot gases) into a hard target, such as a building or bunker, that has been breached by the penetrator casing. The hot gasses may also have the advantage of maintaining an opening that the penetrator passes through, with for example the hot gases glassifying the edges of a hole formed by the penetrator, such as through soil.