The invention relates to a method for determining angle of incidence for a projectile in the path of the projectile from launcher to target, which projectile is guidable and substantially or partially roll-stable and comprises a control system and at least two actuators with associated control members, in which the following steps are included: determination of applied force for pitch control by evaluation of the moment upon the actuators of the projectile, determination of applied force for yaw control by evaluation of the moment upon the actuators of the projectile, calculation of the pitch component a of the angle of incidence and of the yaw component β of the angle of incidence, based on comparison between the evaluated moments and reference data for moments. The invention also relates to a GNC system.
The invention relates to a fin deployment mechanism (1) comprising a base unit (3), deployable fins (8) movably arranged on the base unit (3) and, in the retracted position, bearing against the base unit (3), as well as a gas-generating device, in which the fins in the retracted position are fixed to the base unit, and in which at least one gas duct (6, 7) is arranged in the base unit (3) so as to conduct pressurized gas generated by the gas-generating device to the bottom side of the fins (8), which in the retracted position bear against the base unit (3), in order to create a force which acts on the fins (8) for deployment of the same (8'). The invention further relates to an artillery projectile comprising a fin deployment mechanism.
F42B 10/20 - Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel deployed by combustion gas pressure, or by pneumatic or hydraulic forces
The invention concerns a method for repeatable ignition of propellant charges in a weapon system, e.g. for firing shells from a barrel weapon, through electrical discharge in a combustion chamber duct (3) containing a combustion chamber substance (30), wherein the filling gas in the combustion chamber duct (3) is ionized by the high-voltage potential applied to the ionizing electrode (7), which is connected to a first high-voltage generator (2), thus increasing the electrical conduction capacity in the combustion chamber duct (3) such that an electrical sparkover through electrical discharge via a second high-voltage generator (5) between a rear electrode (22) and a front electrode (21) is generated and produces an effect, with subsequent ionization of the surface of the combustion chamber substance (30), which causes hot gas in a plasma-like state to be expelled from the combustion chamber duct (3). The invention also concerns a plasma generator therefor, and an ammunition unit containing said plasma generator.
The invention relates to an action device (1), especially intended for incorporation in a shell (2), for the achievement of at least one action effect, such as smoke effect, light effect, explosive effect or combinations thereof, the action device (1) comprising at least two action charges (3, 4, 5), arranged one behind the other along a common centre axis A-A between two end faces (8, 9) disposed in the shell (2), and the action device (1) also comprising an initiation device (10). The action device is characterized in that the initiation device (10) is fixedly disposed in a container (7), which container (7) is arranged coaxially and rotatably between the two end faces (8, 9) about the common centre axis A-A into different rotational positions X1, X2, X 3, X4 for selective initiation of one or more action charges (3, 4, 5).
F42C 19/095 - Arrangement of a multiplicity of primers or detonators, dispersed around a warhead, one of the primers or detonators being selected for directional detonation effects
F42B 12/02 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
F42B 4/14 - Aerial display rockets characterised by having plural successively-ignited charges
F42C 15/192 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier rotatable in a plane which is parallel to the longitudinal axis of the projectile
F42C 15/34 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
5.
ACTION DEVICE FOR GRADUATED EXPLOSIVE EFFECT AND A PROCESS FOR THE SAME
The invention relates to an action device (1) designed for graduated explosive effect, especially intended to form part of a shell body (2) for firing from a gun barrel, which action device comprises at least two action parts (4, 5, 6) comprising fuel (10) and oxidizer (14), and an activation device (3) for activating the action parts (4, 5, 6), which activation device (3) comprises a detonator (23). The invention is characterized in that the fuel (10) and the oxidizer (14) of the action parts are stored separately up to activation of the action device (1), and in that the detonator (23) and the action parts (4, 5, 6) are designed for the initiation of one or more action parts (4, 5, 6), depending on the grade of explosive effect which is to be obtained. The invention also relates to a process for the said action advice (1).
F42C 15/38 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein arming is effected by chemical action
F42B 12/20 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
6.
PLASMA GENERATOR FOR AN ELECTROTHERMAL-CHEMICAL WEAPONS SYSTEM COMPRISING CERAMIC, METHOD OF FIXING THE CERAMIC IN THE PLASMA GENERATOR AND AMMUNITION ROUND COMPRISING SUCH A PLASMA GENERATOR
The invention relates to a plasma generator (4) for electrothermal and electrothermal-chemical weapons systems, the plasma generator being intended, via at least one emitted energy pulse, to form a plasma, which is designed to accelerate a projectile (3) along the barrel (11) of the weapons system in question, the plasma generator comprising a combustion chamber (20) having an axial combustion chamber channel (20' ) and a ceramic arranged inside the combustion chamber channel for insulating the combustion chamber. According to the invention the ceramic consists of a shrink- fixed, compressively pre-stressed ceramic tube (23). The invention also relates to a method for shrink-fixing the ceramic tube in the combustion chamber channel as well as an ammunition round comprising a plasma generator according to the invention.
The invention relates to a plasma generator (4, 4') for electrothermal and electrothermal -chemical weapon systems, which plasma generator is intended to deliver at least one energy pulse for the formation of a plasma for accelerating a projectile (3) along the barrel (11) of the weapon system. The plasma generator comprises a combustion chamber (20) with a combustion chamber channel (20'), a centre electrode (24, 24') disposed inside the combustion chamber channel, which combustion chamber and centre electrode are electrically conductive, and a ceramic tube (23) arranged between the combustion chamber and the centre electrode. The ceramic tube is shrink- fastened into the combustion chamber, and the plasma generator further comprises a polymeric sacrificial material (34, 34'), which is gasifiable by the energy pulse. The invention also relates to a method for making the plasma generator form a plasma, and an ammunition round having a plasma generator according to the invention.
The invention relates to a capacitor arrangement (1) comprising at least one capacitor (2) having a first electrode (3) connected to a first conductive element (13) and a second electrode (4) connected to a second conductive element (14). The first and second conductive elements (13, 14) of the capacitors are separated by a dielectric (15). The integral capacitors are configured to each form a substantially circular- cylindrical body having a central through opening (17). By virtue of the invention, a compact capacitor arrangement is achieved, which minimizes the risk of electrical sparkovers. The invention is obtained by the introduction of four electrodes, a first and a second electrode (3, 4) being placed adjacent to the outer peripheral surface (18) of the body, whilst a third and a fourth electrode (7, 8) are placed adjacent to the central opening (17) of the body.
H01G 2/20 - Arrangements for preventing discharge from edges of electrodes
H03K 3/537 - Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a spark gap
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