RU2550924C1 - Control system of grenade launcher and grenade - Google Patents

Abstract

FIELD: armaments and ammunition.

SUBSTANCE: control system of grenade launcher comprises laser distance gauge, processor or memory block, grenade with timer programmed for explosion after expiration of self-destruction time, and with set difference between time of self-destruction and time of explosion, fuse control transistor.

EFFECT: invention increases accuracy of grenade firing.

Description

The invention relates to portable and mobile launchers and to combat missiles, namely to grenade launchers of all calibers, to ground and air-based launchers, to artillery when firing in conditions of visual visibility.

Known grenade launchers, consisting of a warhead and a rocket engine, see, for example, the Internet, Wikipedia, RPG-7, the aiming device of which is a hinged frame. But the accuracy of shooting from them is small. At the current level of rocket technology, it is not a problem to deliver a warhead to any distance, the problem is to get there! You can release 100 grenades and not hit once, but with a good control system you can hit from the first or second shot. Advances in electronics made it possible to make a cheap and easy system for determining range and calculating elevation angle and flight time.

Serial samples and designs of grenade launchers having a laser range finder and a trajectory calculator, and grenades with a fuse timer are known, see US Pat. No. RU 2240485.

The objective and technical result of this invention is to increase the accuracy of shooting, the possibility of detonating a grenade in the air at a given point and simplifying the design of the grenade.

In some combat conditions, it would be highly desirable to control the time of the bursting of a grenade in the air. Suppose an adversary is hiding behind a ledge of a rock, behind a tree, behind a parapet of a trench, is in the window of a building without a back wall (which a grenade might hit and explode). In these cases, it is almost impossible to hit the enemy without using a grenade explosion in the air. That is, it is desirable that the grenade had a device that explodes it in the air, taking into account all of the above factors.

For this, the output of the processor or memory block can be connected with a timer installed in the grenade, moreover, the grenade has one or two insulated electrically conductive belts, and in the starting device opposite them there are one or two spring-loaded contacts connected to the processor or to the memory block.

In this case, it is desirable that the shooter could amend the determination of the moment of detonation of the grenade, taking into account the distance to the object, behind which or in front of which the enemy is hiding. This can be done using the manual range adjustment knob.

This version of the system works like this: let's say the enemy is hiding behind a ledge of a rock. The shooter points the crosshairs to the rock and gently pulls the trigger - the range is measured. Then presses the trigger further or presses the hook on the front handle - the range is fixed. Then, with the thumb of his right hand, he presses four times the button for manual range adjustment - the explosion range in the air increases by four meters. Then he raises the crosshairs of the sight 1-2 meters above the cliff and shoots. A grenade flies over a ledge of a rock and explodes behind it, hitting the enemy with fragments or, if it had a charge of a volume explosion, an explosive wave. Along the way, it should be noted that with the development of body armor and composite helmets, a grenade with a volume explosion charge will have the greatest efficiency.

The system of option 4 can operate in two algorithms.

ALGORITHM A. Grenade has a timer, a memory device and a device for comparing time in memory and current time. The grenade timer runs from zero to infinity or until the time of self-destruction, and before firing into the grenade’s memory device, the required range of explosion in the air is entered, say 2.837 s. After the shot, the timer starts up (starts) and starts the countdown, and when the desired time is reached, the comparison device issues fuse signal.

ALGORITHM B. The grenade has a timer, in parallel with the last register of which the transistor controlling the fuse is connected, the timer is programmed to explode after the self-destruction time has elapsed, let's say 22.222 s, and before firing into the grenade’s timer a series of pulses introduces the difference between the self-destruction time and the required explosion time (in the described In the case above, this difference is 22.222-2.837 = 19.385 s), after which the timer starts (starts) when fired and fires when the self-destruction time is reached.

That is, in a grenade operating according to the latest algorithm, there is no memory device and a comparison device, but there is only an additional transistor controlling the fuse. This control system will be cheaper than according to Algorithm A. However, it has one drawback - the system is difficult to reprogram, it will take 10-15 seconds - after turning off the power and discharging the capacitor in the power circuit, the entered time will disappear, and during this time it cannot be produced setting the time again - both times will add up, and the grenade will explode far behind the target. But this is an insignificant flaw.

Claims (1)

Grenade launcher control system containing a laser rangefinder, the output of which is connected to the input of the processor or memory unit, and the output of the processor or memory unit is connected to a timer installed in the grenade, characterized in that a transistor controlling the fuse is connected in parallel with the last register of the timer, the timer is programmed to explode after the self-destruction time has elapsed, and before firing a grenade into the grenade timer, a series of pulses introduces the difference between the self-destruction time and the desired explosion time, after which the timer starts When a shot is triggered and when the self-destruct time.