Abstract: A method and circuit arrangement for determining angular velocities with the aid of an optical fiber ring interferometer includes filter circuitry for selecting the amplitudes of four adjacent spectral lines of resultant interfering light waves exiting from the interferometer, a first adder for adding amplitudes of spectral lines at the lowest and second highest frequency, a second adder for adding spectral line amplitudes at the second lowest and the highest frequency, a divider for forming a quotient by dividing a first product of the first adder's sum and the amplitude at the second highest frequency by a second product of the second adder's sum and the second lowest frequency amplitude if the second lowest frequency is an even numbered harmonic of the modulation frequency, and by dividing the second product by the first product if the second lowest frequency is an odd numbered haromonic of the modulation frequency; a first circuit device for weighting the quotient with a ratio of the ordinal of the harmon

Abstract: A liquid propellant cannon includes an axially movable pump piston 25 which is exposed to propellant in a propellant chamber. The pump piston has a stroke that is shorter than the total length of the propellant chamber. For some or all of the rest of its length the propellant chamber 22 is divided by webs into parallel chamber portions. The pump piston causes uniform ignition of the liquid propellant charge during its relatively short stroke, while the chamber portions permit a substantially variation-free, compact reaction of the liquid propellant. The result is a relatively compact structure which provides uniform combustion behavior.

Abstract: A muzzle brake (10) for a gun barrel (12) to be attached coaxially onto the muzzle end of the gun barrel up to a radially extending annular abutment surface (20) and provided with elongated gas discharge openings (14) which are arranged transversely to the axis of the bore (16) over its lateral effective length region (L.sub.2) and have a minimum opening length (L.sub.1) at the rear of the effective length of the muzzle brake (10), i.e., adjacent the position of the abutment surface (20), the axial inner bore (18) of the muzzle brake (10) has an inner diameter (d) which corresponds to the rifling diameter (d.sub.1) of the gun barrel (12) and its rear end ends at the radially extending abutment surface. The gas discharge openings (14) are provided with rearwardly sloped baffles (24) and gas guide surfaces (26) which have different lengths in the rear region of the muzzle brake (10) and have the same opening length (L.sub.1) in the forward region.

Abstract: An arrangement for programming the control of a mine including a pin (16) made of a material having a predeterminable magnetic permeability and inserted into a blind bore-like opening in a mine housing (12). Via a coil disposed in the interior of the mine and surroundng the blind bore-like opening, a resonant output frequency f.sub.R) of an oscillator, which frequency is a function of the permeability of the pin (16), is generated. If the detected resonant output frequency (f.sub.R) corresponds to a frequency (f.sub.i) stored in a frequency/address memory (42), an address (A.sub.i) associated with this frequency (f.sub.i) is read out and fed to a read-only memory (44). This determined address (A.sub.i) causes information (I.sub.i) associated with this address (A.sub.i) in the information memory (44) to be read out so that the action belonging to the respective information (I.sub.i) is initiated within the mine.

Abstract: To improve the steering of autonomous missiles with respect to great thrusts and a large number of guide pulses, preferably in a caliber range of less than 100 mm, fluidic wall jet elements are provided in branching conduits which are connected to radially directed steering nozzles and which are disposed in a plurality, for example, four, of control discs arranged one behind the other within the missile. The respective fluidic wall jet elements permit a sudden change in direction in a respective branching conduit of a hot gas stream generated by a gas generator. This makes it possible to generate, for example, a change in the direction of the gas stream from one steering nozzle to an oppositely disposed steering nozzle. A plurality of miniature flame capsules or compressed gas cartridges are arranged in a space saving manner in at least one disc-shaped recess as the actuators for the fluidic wall jet elements. The actuators ensure individual or joint actuation of steering nozzles arranged, for example, at 90.

Abstract: An apportioning apparatus in combination with a transporting device for transporting propelling charge modules in an axial direction of the transporting device and a loading tray for receiving propelling charge modules which are to be loaded into a gun. The apportioning apparatus is arranged opposite to the transporting device in the axial transporting direction of the propelling charge modules and extends laterally of and parallel to the loading tray. The apportioning apparatus includes at least one pusher which simultaneously transports a predetermined number of propelling charge modules transversely into the loading tray.

Abstract: A fin stabilized projectile in which measures are taken for increasing the thermal resistance of its guide fins against the uncontrollable danger of burning or melting due to overheating of the material as a result of air friction during the flight of the projectile. Each guide fin is composed, at least in the region of its leading edge of a heat resistant fiber material or a heat resistant composite fiber material. The fins may be composed entirely of the heat resistant material or the leading edges of the fins, the leading and outer edges of the fins, or the entire front fin portion may be configured as a strip of the fiber material in front of and fastened to a metal body member comprising the remainder of the respective guide fin. Moreover, the connecting region between any such strip and the metal body member is preferably configured with a sloped, and thus as a contact area which has a larger surface area. The strip is glued, riveted and/or screwed to the body member in the connection region.

Abstract: A loading device for loading a propelling charge into a chamber of a gun barrel having a breech ring, wherein a loading trough is disposed behind the breech ring with the chamber beginning at the rear of the breech ring and the gun barrel has a bore axis. A transfer arm is mouonted for pivotal movement in a direction about an elevation axis of the gun barrel. A loading tray is pivotal transversely to the direction of movement of the transfer arm from a first position off the bore axis of the gun barrel to a second position aligned with the bore axis of the gun barrel and behind and separated from the breech ring. A pivoting device is connected to the transfer arm and the loading tray for pivoting the loading tray between the first and second positions.

Abstract: A signal transmitting steering cable (4, 40, 40') for remotely-controlled flying bodies (1) which, once the flying body (1) has been launched, can be located and disposed of easily. For this purpose the surface layer (44, 46) of the steering cable (4) includes a material which is fluorescent when illuminated with light of a predetermined wavelength range. Preferably, a dye whose emission spectrum lies approximately between 530 and 690 nm is employed as the fluorescent material.

Abstract: The invention relates to a projectile having an interior space in which disposable payloads and/or electronic components are arranged, and which are of a type intended to have an extended lifetime. To protect the interior components from corrosion, the interior space is filled with a protective gas, for example, argon, nitrogen or hydrogen, or a mixture of these gases. The protective gas may be present in the interior space at a greater than atmospheric pressure of, for example, three bar.

Abstract: A chute magazine for storing and supplying modular propelling charges. A magazine floor is aligned in a direction in which the propelling charges are to be supplied and has a frontal end region formed as a collecting trough. A plurality of parallel chute walls are arranged at a right angle to the magazine floor and define a plurality of vertical chutes for the storage of superposed stacked rows of propelling charge modules. The chute walls have lower ends adjacent to and separated from the magazine floor to define a passage between the magazine floor and the adjacent ends and at right angles to the chute walls for supplying the propelling charge modules in a direction transversely to the chute walls into the trough. An automatically driven pusher is disposed in the passage above the magazine floor for pushing propelling charge modules disposed in the passage into the trough.

Abstract: A tank turret including an armored turret housing having a front side provided with solid front armor, and a pivotally mounted gun including a cradle shield, cradle, recoil device and rearward breech block housing being arranged in the turret housing. The armored turret housing, or at least parts of it, are used to increase recoil mass of the gun.

Abstract: An arrangement for the accelerating of a projectile through the intermediary of a plasma, wherein the plasma is generated by means of an electrical discharging circuit within a metallic tube which has the bottom thereof closed. The one pole of the discharging circuit contacts a first electrode which is formed on the tube rearwardly of the projectile, and in the other pole of the discharging circuit is connected with the casing or jacket of the tube. The projectile, which constitutes the second electrode, forms a current collector which contacts in the casing or jacket of the tube and slides therein during the acceleration of the projectile. The current collector hereby acts in the manner of a sliding contact which, during the acceleration of the projectile, remains in electrical contact with the tube.

Abstract: The parachute having a canopy composed of a plurality of radially arranged asymmetrical polygonal panels of the same shape, with, each panel being sewn only partially to its adjacent panel so that, in the fully deployed state, a plurality of air exit nozzles are formed in the carrying zone section of the parachute in the unsewn regions with the nozzles all acting in the same circumferential direction. The effect of each air exit nozzle is improved and stabilized with respect to guiding the flow of air in the tangential direction in that a trapezoidal area is attached to the edge or side of each panel in the unsewn region so as to overlap the adjacent panel. In addition, each panel is preferably provided with a horizontal or concentrically extending stabilization slit which is disposed in the transition region between the carrying zone section and the guide zone section of the canopy.

Abstract: A spin stabilized projectile unit includes a sub-caliber projectile having a cylindrical section connected to a conical tail section including an external circumferential holding groove. A propelling cage casing encloses the projectile. A propelling base includes a receptacle holding the projectile and connected with the projectile and the propelling cage casing. The receptacle includes inwardly projecting axial webs presenting an inner diameter of the receptacle in a region of the cylindrical section of the projectile which corresponds to the outer diameter of the cylindrical section. The inner diameter of the receptacle formed by the webs becomes increasingly larger than the respective outer diameter of the conical section beginning in the transition region between the cylindrical and conical sections to form an annular gap extending to a bottom region of the bottom of the receptacle.

Abstract: A lightweight training bomblet provided with a housing made of cardboard or plastic. Such training bomblet should be easily assembled and be able to withstand the high acceleration forces generated during transport into a target area. To prevent undue deformations of the bomblet housings made, for example, of cardboard, during air transport and the resulting premature ignition during ejection from a carrier projectile, both cardboard or plastic housing covers are connected with one another by means of a pre-tensioned connecting arrangement and their abutment faces are pressed against the end faces of a tubular housing shell, with the abutment faces of the housing covers possibly additionally containing a holding and sealing arrangement which is pressed into or against the end faces of the housing shell.

Abstract: A warhead (10') which includes a shaped or projectile forming charge in the form of a liner (14) of a multi-phase metallic material or a metal-metal laminate. To prevent the liner (14) from being destroyed by the incoming shock wave and make impossible the formation of a projectile, that is, a shaped charge jet, a layer (15) is arranged, in front of the liner (14) on the side of the explosive, with the layer (15) causing the shock wave front to be flattened and damped and having an acoustic impedance which is lower than that of the liner (14).

Abstract: An impact projectile which comprises at least two impact bodies centered with respect to one another and disposed one axially behind the other with means for separating the two bodies axially upon approach to the target. The separation can be effected by thermal means controlled by a proximity switch and/or by flight duration. The projectile is especially designed for penetrating armored vehicles having multi-layer armored walls.

Abstract: To provide a complete seal in the region of the rifling, particularly in worn-out gun barrels firing spin stabilized carrier projectiles provided with a metal guide or driving band and a thin-walled projectile connected to a projectile base and having a wall thickness less than or equal to 0.05 times the caliber of the gun barrel and to reduce the ramming deceleration and the radial pressure stresses on the projectile shell during passage through the gun barrel, a plastic ram ring is disposed on the outer surface of the projectile shell in front of the metal guide band and in a region of the shell that is not supported radially by the projectile base.

Abstract: In order to improve the service life of prior art gun tubes and to improve the ballistics of a projectile fired through them, the present invention provides a gun tube with an optimized variable rifling which produces a rifling force curve (R(x)) along the gun tube (x) which has an essentially trapezoidal shape with a noticeably reduced rifling force maximum compared to the rifling force curves of conventional constant rifling.