Abstract:
The invention relates to a method and a device for triggering a warhead in a target-tracking guided missile. The guided missile has an impact fuse and a proximity fuse for triggering detonation of the warhead. The invention triggers the warhead such that the damage caused to the target, such as an enemy fighter aircraft, becomes maximal. To this end, the miss disdance is predicted from influencing variabled detected during the flight of the guided missile. The warhead triggering delay time of the proximity fuse is set dependent on the predicted miss distance to achieve such maximum damage.
Abstract:
1. In a fuze for an explosive projectile having a base section, a body section, and a nose section, a safety and arming mechanism including a firing train having a booster charge and acceleration-sensitive means for initiating fuze arming when the projectile to which the fuze is affixed is fired from a gun, the improvement comprising: an impact assembly located in the nose portion of the fuze, said impact assembly comprising a cartridge containing a dust under pressure, means for releasing said dust from said cartridge after the projectile to which the fuze is affixed is airborne, the action of the dust passing over the projectile serving to deposit an electrostatic charge upon the projectile.
Abstract:
1. An aircraft bomb fuzing system that permits the selection of alternative arming-delay and detonation-delay-after-impact times at any time prior to release of the bomb, said system comprising in combination: a first circuit point aboard said aircraft; a DC power source aboard said aircraft connected to said first circuit point for energization thereof with DC voltage; an AC generator aboard said aircraft also connected to said first circuit point, said generator being capable of selectively applying to said first circuit point any predetermined combination of a number of AC signals of different frequencies; means on said bomb and said aircraft for supporting said bomb prior to release thereof; an electrical input terminal aboard said bomb; an extensible and disconnectable conductor means connected between said input terminal and a grounded point on said aircraft for maintaining said input terminal grounded prior to release of said bomb, said conductor means being so constructed and arranged that as the bomb falls away from said aircraft after release thereof, said conductor means first disconnects itself from said grounded point on said aircraft as the bomb begins to fall, the makes momentary electrical contact with said first circuit point after said bomb has fallen a short predetermined distance, and then disconnects itself from said input terminal after said bomb has fallen an additional predetermined short distance, the DC voltage of said DC power source and the predetermined combination of AC signal frequencies from said AC generator thereby being momentarily applied to said input terminal aboard said bomb as said bomb falls away from said aircraft; capacitive storage means within said bomb connected to said input terminal, said capacitive storage means being adapted to charge to the DC voltage of said power source as a result of the momentary application of said DC power source to said input terminal as the bomb falls away from the aircraft; an arming-delay resistance means and an armingdelay capacitor in series across said capacitive storage means; an arming-delay gas diode and an impulse responsive arming means in series across said arming-delay capacitor, said DC voltage on said capacitive storage means flowing through said arming-delay resistance means to charge said arming-delay capacitor which upon attaining a voltage equal to the firing voltage of said armingdelay diode rapidly discharges through said diode and said arming means, said arming means being adapted to thereupon arm said bomb, the arming-delay time thus being the time taken by said arming-delay capacitor to charge to saId firing voltage; a normally open impact switch, a detonation-delay resistance means and a detonation-delay capacitance in series across said capacitive storage means; a detonation-delay gaS diode and a detonator in series across said detonation-delay capacitor, said impact switch being adapted to close on impact so that said capacitive storage means flows through said detonation-delay resistance means to charge said detonation-delay capacitor which upon attaining a voltage equal to the firing voltage of said detonation-delay diode rapidly discharges through said diode and said detonator, said detonator being adapted to thereupon detonate said bomb, the detonation-delay-after-impact time thus being the time taken by said detonation-delay capacitor to charge to the firing voltage of said detonation-delay diode; a plurality of parallel-connected frequency-sensitive switch devices connected to said input terminal, each of said switch devices comprising a tuned circuit and an irreversible impulse-responsive switch, each tuned circuit being tuned to a different one of the signal frequencies capable of being applied to said first circuit point by said generator, said switch devices being so constructed and arranged that the momentary application of the predetermined combination of AC signal frequencies applied to said input terminal as said bomb falls away causes irreversible actuation of the impulse-responsive switches of those switch devices whose tuned circuit is tuned to one of the signal frequencies present in the predetermined combination applied by said generator; said arming-delay resistance means and said detonation-delay resistance means each comprising a plurality of resistors, the resistors of said arming-delay resistance means being adapted to cooperate with a first number of said impulse-responsive switches so that the resistance provided by said arming-delay resistance means is determined by the number of said first number of impulse-responsive switches which are actuated, and the resistors of said detonation-delay resistance means being adapted to cooperate with a second number of impulse-responsive switches so that the resistance provided by said detonation-delay resistance means is determined by the number of said second number of impulse-responsive switches which are actuated, the arming-delay and detonation-delay-after-impact times, which are dependent on the resistances of said arming-delay resistance means and said detonation-delay resistance means, respectively, thus being selectively variable by choice of the predetermined combination of signal frequencies applied to said first circuit point by said generator.
Abstract:
The invention relates to a method and a device for triggering a warhead in a target-tracking guided missile. The guided missile has an impact fuse and a proximity fuse for triggering detonation of the warhead. The invention triggers the warhead such that the damage caused to the target, such as an enemy fighter aircraft, becomes maximal. To this end, the miss disdance is predicted from influencing variabled detected during the flight of the guided missile. The warhead triggering delay time of the proximity fuse is set dependent on the predicted miss distance to achieve such maximum damage.
Abstract:
A submunition has a metallic body 1 a sensor 4 for sensing the presence of metal and an extendable probe (e.g. a spring 3) separating the sensor 4 and body 1 to avoid interference with the sensor. A circuit including the metal sensor and an impact sensor detonates the submunition if impact with a metal body is detected; if impact only is detected the submunition adopts the role of a mine.
Abstract:
A combined proximity and impact fuse employed in a missile, including a circuit arrangement for avoiding the actuation of a detonation upon impingement of the impact fuse on a rain drop. The circuit arrangement is connected to the proximity fuse and is respective to the signals produced by the same to prevent the generation of a detonation signal upon impact until recognition by the proximity fuse that a given release criterion for impact detonation has been met.
Abstract:
A mode selector device, such as might be used in a projectile, allowing a simple manual adjustment before firing time to enable a function upon firing. A safe, small, reliable, "fail-useful" mechanism using shock to activate a cutter which removes a particular short in the circuit for each of a plurality of functions.
Abstract:
A pressure-armed, semiactive bomblet fuze, having both contact and proxim-fuze capability for a free-fall weapon, and utilizing both a gyro aligning fuze train and a photocell transducer for directly initiating an electric detonator.