A projectile extending along an axis X between two ends, the projectile being positioned in a barrel of substantially cylindrical shape of axis X is provided. The projectile comprises: a hollow part at its center, opening onto a first of the two ends of the projectile to receive a compressed fluid, a plurality of vents passing through the projectile from the hollow part substantially perpendicular to the axis X and with a substantially radial outlet to expel the compressed fluid substantially at a tangent to the projectile. The invention also relates to the barrel and to a launch device comprising a projectile and a barrel.

A projectile extending along an axis X between two ends, the projectile being positioned in a barrel of substantially cylindrical shape of axis X is provided. The projectile comprises: a hollow part at its center, opening onto a first of the two ends of the projectile to receive a compressed fluid, a plurality of vents passing through the projectile from the hollow part substantially perpendicular to the axis X and with a substantially radial outlet to expel the compressed fluid substantially at a tangent to the projectile. The invention also relates to the barrel and to a launch device comprising a projectile and a barrel.

A non-lethal projectile comprises a rear portion in the form of a cylinder (2) coupled to at least two symmetrical petal-like impact elements (1) which are capable of opening upon leaving a bore and are designed to form, in a closed configuration, a cylinder having an outside diameter equal to the diameter of the cylindrical rear portion and also having an axial cylindrical opening which transitions into an axial opening in the cylindrical rear portion of the projectile. The petal-like elements have an asymmetrical cross section and an inner conical groove, the base of which is disposed at the rear portion-end of the projectile, wherein, in the front portion, each petal-like element has a unidirectional relief.

A projectile fired from a weapon which has a bore with inner rifling, having a point and a base which are disposed within a sleeve such that the point and base of the projectile rotate independently of the sleeve when fired from a gun or similar weapon designed to discharge projectiles or similar material.

A projectile fired from a weapon which has a bore with inner rifling, having a point and a base which are disposed within a sleeve such that the point and base of the projectile rotate independently of the sleeve when fired from a gun or similar weapon designed to discharge projectiles or similar material.

A method of making a projectile apparatus is provided that includes making one or components of the apparatus using an additive manufacture technique such as 3-D printing or laser-aided additive manufacture. The projectile apparatus can have a projectile, a propellant, and one or more optional components such as a wading, a sabot, and an intermediary device. The projectile can be fired through a barrel having a smooth bore. Additive manufacture methods can be used that involve forming components from superalloys having nanoparticles incorporated therein. The projectile apparatus can convert gas pressure or gas velocity into a high rate of projectile spin. The projectile has long-range accuracy due to a high or sustainable velocity and high rate of spin.

A bullet may have its base shaped such that explosive from the cartridge or chamber causes the bullet to spin. A bullet may have any shape to the base that causes spinning that closely or exactly matches the rifling of a particular rifle. The base may be structured to achieve an impellor or turbine action to angularly accelerate the bullet while the bullet is being acted upon by an axial force from a propellant explosion during free travel within the gun or while travelling along the rifling.

A projectile, includes a head having a forward tip and a rear end, a stem extending from the rear end of the head and formed integrally with the head, and a sleeve positioned adjacent to the head and being collinear with the head and coaxial with the stem. The sleeve is hollow and substantially cylindrical and has an inner diameter and an outer diameter. A base is formed integrally with the stem by pressing a rearward end of the stem and expanding a rear dimension of the stem to capture the sleeve between the base and the head. The head and the base are rotatably dependent upon each other by connection with the stem, and the head, stem, and base are rotationally independent of the sleeve.

A projectile, includes a head having a forward tip and a rear end, a stem extending from the rear end of the head and formed integrally with the head, and a sleeve positioned adjacent to the head and being collinear with the head and coaxial with the stem. The sleeve is hollow and substantially cylindrical and has an inner diameter and an outer diameter. A base is formed integrally with the stem by pressing a rearward end of the stem and expanding a rear dimension of the stem to capture the sleeve between the base and the head. The head and the base are rotatably dependent upon each other by connection with the stem, and the head, stem, and base are rotationally independent of the sleeve.

The present disclosure generally relates to systems and methods for controlling aerodynamic loads on an aerostructure. The present disclosure can include a system including an outer shell, the outer shell including at least one aperture, and an inner shell having an aperture therethrough. The at least one aperture of the outer shell can be part of an array of apertures azimuthally distributed on the outer shell. The system can further include an actuator configured to control a rotational alignment of one of the inner shell and the outer shell to alter aerodynamic bleed through a portion of the at least one aperture of the outer shell. The actuator can be configured alter the rotational alignment of the inner shell and the outer shell based at least in part on a desired steering direction of the aerostructure.