摘要:
An aeromechanically stable sabot system that includes a center of gravity that is placed forward of an aerodynamic center of the aeromechanically stable sabot system when in steady-state flight. By placing the center of gravity forwards of the aerodynamic center, the sabot system exhibits positive longitudinal and directional stability. To illustrate, the sabot system and/or portions thereof will return to stable flight after being disturbed in pitch (vertically or about a transverse horizontal axis) or yaw (side to side or about a vertical axis) when traveling horizontally.
摘要:
A projectile apparatus is provided that includes a projectile, a propellant, and optional components such as a wading, a sabot, and an intermediary device. The projectile can be fired through a barrel having a smooth bore. A sabot is provided that can include molded features, for example, a base portion and a plurality of petal portions defining, in-part, a volume for accommodating a projectile. The sabot and wadding can include molded features that control and direct gases produced by the propellant. The 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.
摘要:
A rocket-propelled grenade includes a payload section, a selectable fuzing section joined to the payload section, and a propulsion section joined to the selectable fuzing section. A rocket-propelled grenade includes a propulsion section and a payload section operably associated with the propulsion section. The payload section includes a shell, one or more penetrators disposed in the shell, and a charge for compromising the shell to deploy the one or more penetrators when the charge is initiated.
摘要:
Disclosed is spin-stabilized ammunition for use in grooved or smooth bore handheld firearms with calibers up to 60 mm. The projectile of the ammunition features a body in the shape of a truncated cone at the top of a cylinder with proportions of the cone length to the cylinder length varying between from one-to-six to one-to-three depending on the expected initial speed of the projectile after the ammunition has been discharged. A central longitudinal barrel extends through the projectile with a proportion of the entrance diameter and exit diameter of 1.38-to-one for expected discharge speeds near sound velocity or of 1.22-to-one for expected discharge of hypersonic velocities. Finally, nozzles within the projectile create a spinning motion around the projectile's axis, the nozzles being located between cavities for propellant charges.
摘要:
A projectile (and munition including the projectile) and a method of assembling the same, includes a body having a cavity, a propellant disposed in the cavity and a base including an ignition flash column extending into the cavity containing the propellant and a nozzle formed so as to be openable and closeable.
摘要:
A projectile (and munition including the projectile) and a method of assembling the same, includes a body having a cavity, a propellant disposed in the cavity and a base including an ignition flash column extending into the cavity containing the propellant and a nozzle formed so as to be openable and closeable.
摘要:
An annular expulsion motor (14) is secured around the main nozzle casing (12) of a missile by means of shear bolts (28). The expulsion motor expels and spins up the missile prior to ignition of the missile main motor whereupon the expulsion motor is jettisoned from the missile by the efflux of the main motor.
摘要:
A self-propelled rocket vehicle (1) in which ramp tabs (R1, R2, R3) are provided to control pitch and roll and vane tabs (V1, V2) provided to control spin. The ramp tabs comprise an array of generally symmetrically spaced tabs (R1, R.sub.2, R3) mounted on the vehicle and displaceable into the nozzle efflux (E) to control rotation of the vehicle about the roll axis (RA) and pitch axis (PA). The vane tabs (V1, V2) are placed symmetrically about the ramp tabs and are angled such that, when displaced into the nozzle efflux (E), spin in either direction about the vehicle longitudinal axis (SA) results. Overall control is achieved by an auto-pilot controlling actuators driving the ramp tabs and vane tabs to produce the desired thrust vectoring and spin control with the height of the vehicle being controlled by a height controller connected through a limiter to all ramp tabs to minimize loss of attitude control.
摘要:
A process for piloting and guiding a projectile in the terminal phase in which the correction is obtained by means of a barrel of (n) impellers with lateral nozzles. Combustion of the first is triggered off when the rotational speed of the sight line reaches a triggering threshold. The mean thrust of each of the impellers which discharge successively and completely during a single revolution of the projectile is directed in the same direction located with respect to an absolute system of reference axes tied to the target. Detection of the target by an optoelectronic circuit enables the moment when this triggering threshold is reached to be determin