According to a report by the Russian Satellite News Agency on July 2: According to informed sources, the Russian Armed Forces special forces are using 2B25 silent mortars in Ukraine to eliminate Ukrainian armed sabotage and reconnaissance groups.

According to a report by the Russian Satellite News Agency on July 2: According to a source familiar with the matter, the Russian Armed Forces special forces are using 2B25 silent mortars in Ukraine to eliminate Ukrainian armed sabotage and reconnaissance groups.

sources said: "Using the unique 2B25 silent mortar, the exposure elements of its fire are greatly reduced, including sound, flash and smoke traces." The firing sound of this mortar is like the sound of clapping your hands hard (estimated to be around 50 decibels). Due to its covert use, this mortar is used for fire raids during special and reconnaissance activities, including the destruction of camouflaged observation points and strongholds, and the elimination of Ukrainian sabotage and reconnaissance groups during counter-ambush operations.

He added: The mortars of Russian special forces are significantly better than the foreign 60mm portable mortars used by Ukrainian mobile groups in terms of accuracy, power, maneuverability and stealth.

2B25 mortar The moment the shell comes out of the chamber, the firelight and chimney are very small. The

2B25 silent mortar has a caliber of 82 mm and can hit targets within a range of 100 to 1,200 meters. This mortar design with low sound, low flame and low gunpowder smoke when fired is very suitable for special forces operations. Another advantage of the

2B25 mortar is its light weight. Its combat weight is only 13 kilograms and can be operated by two soldiers. After being disassembled, it can be placed in a small backpack and can be carried by one person.

So what is a "silent mortar" and how is it different from traditional mortars? In the picture of our army's PP87 82mm mortar, the moment the gun ejects from the muzzle, there is a large fire ball and large smoke and dust, accompanied by a loud "boom" sound. This actually means that the propellant is propelled phenomenon caused by the package.

PP87 mortar is an ordinary 82mm grenade. From the appearance, the traditional mortar shell looks like a "date stone". Since there is no launching cartridge like the grenade shell, it can only be based on the distance of the launch. A propellant ring (also called an additional charge pack, the white and purple one) is installed on the tail of the bullet. There is a basic propellant tube like shrapnel in the bottom of the bullet tail. When the shell is loaded from the muzzle and then drops to the end of the barrel, it is basically The propellant barrel collides with the firing pin and is ignited. The heat generated ignites the additional charge pack, forming expanding gas and pushing the shell out of the barrel. However, when the propellant charge pack is ignited, it will definitely produce larger flames, smoke, dust and even sound. This If it is very obvious at night, it is easy to be discovered and exposed by the enemy. Even during the day, it is easy to be counterattacked by the enemy because of the short range of the 82 mm caliber or less.

A simple diagram of an ordinary mortar shell, the structure is clear at a glance.

Due to the short range problem of small and medium-caliber mortars (usually the effective range is less than 4,500 meters), it cannot be improved. In order to reduce the possibility of being discovered and counterattacked by the enemy, currently advanced armies are equipped with low (quiet) sound mortar shells. , to make up for this serious shortcoming.

The structure and firing principle of the so-called bass mortar shell are different from traditional mortars and shells. There is a directional rod at the bottom of its barrel. When the shell loaded from the muzzle falls into the bottom of the launch tube, the inside of the tail The tail tube (with piston brake ring) is just inserted into the directional rod and sealed with it. After the propellant at the rear of the shell is struck and ignited, before the tail pipe is completely separated from the directional rod, the shell is in contact with the barrel wall, the tail pipe and the directional rod. The rods are in close contact, so the sealing is good, so the sound is very small when fired, and the loud muffled sound and flames of ordinary mortars cannot be seen. By improving the propellant formula, the smoke and dust can be reduced, and the "three None" effect.

The "silent" mortar shell is like the one in the picture, but the silent mortar shell is longer. Since there is no additional powder ring like traditional artillery shells, the amount of propellant inside is not much, which leads to its shorter range. It is also 82 mm. Russia The grenade used by the army's 2B25 mortar has a maximum range of only 1,200 meters, while our army's PP87 mortar has a maximum range of 4,600 meters, and can reach 5,200 meters after long-range charging. It is the main fire support weapon of the battalion and company, while the 2B25 has a range of only It is suitable for use by special forces, and the principle of silent mortars is not suitable for larger caliber mortars. Currently, the 81/82 mm caliber is the largest, usually 60 mm mortars or even the smaller 57 mm caliber throw cartridge .

The moment our army’s new 120mm mortar fires a shell.

The silent mortar is not a very new piece of equipment. It has been around since the mid-to-late 1980s. Since it is a light mortar, it also has the "three noes" characteristics and is used for "cold gun" shooting in the sneak attack. The gun can be quickly evacuated and find the target again at the next bombardment position. It is more suitable for use by squads, platoons or special detachments. However, it has a short range, so the fire support of battalion and company detachments still uses traditional mortars.