Military Review

Modern penetrating bombs

10
For the first time in 6 years, Sandia National Laboratories in the United States conducted a series of tests on a concrete-piercing nuclear bomb, designated B61-11. At the same time, the shooting of the deepening of the bomb into the ground (in rapid speed) was carried out. At the same time, the bomb, of course, was not equipped with a nuclear part and did not explode. The development of penetrating aviation bombs, which are also called concrete-piercing bombs, in the past few years have become interested in many countries around the world. With this weapons It is quite easy to destroy underground bunkers, command posts or warehouses of a potential enemy. Washington and Tel Aviv are most active in the development of this type of ammunition. Below is a small overview of such aerial bombs.


B61-11

Tests of the B61-11 nuclear bomb were conducted in the US even on November 20 2013 of the year, but Sandia National Laboratories, which were engaged in testing, told about them only in the middle of January 2014. In the polygonal test used a bomb without a warhead. The test itself B61-11 was carried out using a special rocket trolley, which was installed on the rails. This cart was supposed to accelerate the bomb to its working speed (this parameter is classified). Before conducting the tests, the bomb and the truck were specially cooled to a temperature corresponding to the high altitude of the given ammunition.

At the same time, no data on the tests conducted by Sandia Laboratories is given. It is worth noting that tests of this kind have not been conducted in the states since October 2008. At that time, a special engine rocket cart ignited the engine before the start, one of the laboratory workers suffered severe burns as a result of this incident. Before 2008, similar tests were carried out on a regular basis. They are carried out in the framework of the US program for maintaining a nuclear arsenal in combat-ready condition, as well as extending the service life of ammunition.

Modern penetrating bombs

The thermo-nuclear aerial bomb B61 was developed as far back as the 1960s of the last century. Since then, it has already been made 11 of its modifications, currently in development is "Model 12". The last option - adopted - B61-11 was developed in 1997 year. The 11 modification is the anti-bunker bomb. Aircraft ammunition B61 - this variable power bombs from 10 to 340 CT. The last modification of this bomb, in fact, is the old W-61-7 charger, which was packed in a new needle-shaped case, which was previously strengthened. There is information that the enhancement was performed by using depleted uranium in the design of the bomb hull.

B61-11 is a free-falling aerial bomb (the main carrier of the strategic bomber B-2), it is designed to be dropped from a great height - 40 thousand feet (about 12 200 m). The bomb is not equipped with a braking parachute, so by the time of its collision with the ground it can gain a very high speed - up to 610 m / s. The tests carried out show that this aerial bomb is able to go deep into dry soil of medium density to a depth of 20 feet (6 m). This depth is small, but this is quite enough for the main part of the energy released during a nuclear explosion (up to 90%) to go into a seismic wave. The power of this wave should be enough to hit any well-protected underground target.

BLU-109 / B

One of the most common ammunition currently in service with the US Army are specialized anti-bunker bombs with a BLU-109 / B combat unit. These munitions are in service with not only the US Air Force, but also the Air Force of Canada, France, Britain, Denmark, Belgium, Saudi Arabia, the United Arab Emirates and 7 countries of the world. The mass of the warhead is 240 kg, the entire bomb is about 907 kg. The ammunition has a steel shell with a thickness of 25,4 mm. The bomb is able to pierce reinforced concrete structures with a thickness of up to 1,8 m. At the same time, the free-fall ammunition is mainly used with target guidance systems on JDAM or Paveway III, which transform it into a guided aerial bomb - UAB.


A bomb with JDAM and BLU BLU-109 / B warheads received a GBU-31 index. During tests of this munition, it was dropped from an F-16 fighter from a height of 6 thousands and 7,6 thousands of meters, respectively, at a flight speed of 0,8 M. The bombs were able to hit the aiming point, while the bombs were 43,2 and 65, respectively. According to the calculations that were made by the designers of Boeing, the UAB GBU-31, equipped with a wing, is able to provide the maximum relative distance from the discharge point to 75 km, if the discharge height is about 12 000 m, while the bomb speed will be 0,9 M.

GBU-57 (MOP)

The US Air Force has been using the GBU-57 anti-bunker since November 2011 of the year, they were put into service that year. In this case, since the adoption of the bombs on the weapons immediately began the process of their improvement. According to representatives of the Pentagon, the power of the bombs is not enough to destroy all underground bunkers, primarily Iranian ones. Work on the development and improvement of the bomb is engaged in the aircraft manufacturing corporation "Boeing".

The GBU-57 or MOP - Massive Ordnance Penetrator (MOP) is an adjustable anti-bunker bomb. The Americans specially developed this ammunition in order to combat the underground and above-ground fortifications located on the territory of the DPRK and Iran, which could be used to house nuclear facilities. The development of these bombs was carried out by Boeing specialists, starting with the 2007 year. It is reported that the total cost of the design of the MOP was 400 million dollars.


The MPA super-heavy bomb is 6 m long and weighs 13 kg. The mass of the warhead GBU-600 is 57 tons. Since this ammunition is adjustable, the bomb comes to the target by aiming at GPS coordinates. There is information that the initial version of this aircraft bomb is able to penetrate reinforced concrete up to 2,5 meters thick. At the same time, the ability to break through concrete in the improved ammunition is currently kept secret.

GBU-28

Currently, GBU-28 is considered one of the most effective penetrating bombs in service with the American army. It is a controlled aerial bomb, which was originally designed to destroy high-strength underground objects, for example, command posts of a potential enemy. The bomb was created in 1991 year. The UAB is made according to the aerodynamic “duck” scheme and is equipped with a wing opening in flight. It has a semi-active homing head on the target. It is an example of a successful military conversion, as it is produced using the 203-mm barrel of the M110 ACS removed from service. The weight of the bomb is almost 2,3 tons. This ammunition is able to go deep into the ground to a depth of 30 m and pierce a reinforced concrete slab with a thickness of 6 m. They decided not to dig out the ammunition that went to 30-meter depth.


During the tests at Sandia National Laboratories in 1995, this UAB, after being dispersed on a special rocket trolley, was able to break through reinforced concrete slabs with a total thickness of 6,7 m. At the same time, the bomb retained enough kinetic energy to fly another 1,6 km order. For the ability to fight even with very thick overlaps, she received the nickname "deep throat." In military conditions, this bomb was used only twice. Two bombs were used during Operation Desert Storm to defeat Iraqi military bunkers near Baghdad. One bomb passed the target, the second successfully hit the command bunker at the al-Taji airbase, which had been repeatedly bombed, but without disabling it.

MPR-500

In February, 2012 introduced Israel’s own concrete bomb, the bomb was designated MPR-500. This is an ammunition caliber 500 pounds (227 kg). This bomb is able to pierce concrete floors with a thickness of up to 1 meters, or punch right up to 4-x concrete floors with a thickness of 200 mm each. With the explosion of this bomb, a very large number of fragments are formed - up to a thousand, which fly to a distance of 100 meters, effectively hitting the enemy's living force. The choice in favor of such a relatively small caliber was made due to the fact that one aircraft can carry a large number of such bombs.


The Israeli concrete bomb is free-fall, and it can quite easily be transformed into an adjustable bomb with the help of a special kit. Ammunition Israelis developed taking into account their information about the construction in the territory of Lebanon underground fortifications and bunkers, which sometimes have inside ordinary homes or schools.

BETAB
In Russia, concrete bombs are in service with the Air Force, but do not possess such outstanding characteristics as American ammunition. Currently in our country, such bombs are designated as BetaB. These bombs are presented in three main versions: BetaB-500, BetaB-500U and BetaB-500ШП. They all differ in design, weight of the warhead and caliber. For example, the mass of BatAB500U is 510 kg. This bomb is used to destroy nuclear weapons, command and control centers, communications centers, underground ammunition depots, and reinforced concrete shelters. The bomb is able to break through reinforced concrete slabs up to 1,2 m thick or go to the ground on 3 m. The mass of the warhead of the bomb in TNT equivalent is 45 kg. It can be used from heights from 150 to 20 thousands of meters. The bomb is equipped with a stabilizing parachute.


Another version of the BetaB-500ShP is equipped with a warhead with a mass of 77 kg. At the same time in the bomb used jet accelerator. First of all, this aircraft ammunition is designed to disable enemy airfields - concrete runways and taxiways. This bomb is able to penetrate armor up to 550 mm thick, reinforced concrete floors up to 1,2 m thick. One such bomb can damage up to 50 square meters of runway. In this case, with an explosion in the middle ground, it leaves behind a funnel in 4,5 m in diameter. Currently, the BetaB are in service with the Air Forces of Russia and India.

Information sources:
http://lenta.ru/articles/2014/02/26/penetrating
http://vpk-news.ru/articles/16288
http://first-americans.ru/news-usa/353-gbu-57
http://www.dogswar.ru/boepripasy/snariady-rakety/982-aviacionnaia-ypravli.html
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10 comments
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  1. Kars
    Kars 6 March 2014 08: 09
    +3
    This bomb is able to penetrate armor up to 550 mm thick, reinforced concrete floors up to 1,2 m thick.

    Rather, 550 mm reinforced concrete, and 1,2 concrete.

    read at one time about the amazing experiments in Italy to create such concrete armor. There was even a whole Faa di Bruno monitor built, with a pair of 381 mm guns in the tower, the protection of which was not steel armor, but concrete poured into the side cofferdams about 3 meters thick! However, due to its limited size and flagrant low-speed, it is more likely not even a monitor, but a self-propelled floating battery.



    The Italians (probably with skill after their experiments) argued that the best Krupp armor can be replaced with high-quality concrete in 6 times thicker.

    http://alternathistory.org.ua/monitory-monitory-vaigachi-da-terrory
  2. Professor
    Professor 6 March 2014 09: 52
    +1
    30 000 pound (13600 kg) bomb GBU-57A / B, designed to fit on B-1B, B-2A and B-52Н.




  3. ehan
    ehan 6 March 2014 10: 24
    +6
    To break through reinforced concrete 60 m thick. ??? Author WHAT ARE YOU SMOKING?
    1. Professor
      Professor 6 March 2014 10: 39
      +5
      Quote: ehan
      To break through reinforced concrete 60 m thick. ??? Author WHAT ARE YOU SMOKING?

      Respectful to the author, he spent his time and energy writing this article.
      Officially, penetration was not disclosed. At least it is 60 feet in reinforced concrete, that is 18 meters.
      USAF Readies Massive Ordnance Penetrator for Showdown in Iran
      The GBU-57A-B weighs 16.6 tonnes (30,000-pound) most of the weight is its steel casing, enabling the 6.24 meter (20 foot) bomb bomb to penetrate through 18 meters (60 foot) of reinforced concrete.
      1. kirpich
        kirpich 6 March 2014 15: 05
        +2
        So 60 (meters), or 60 (FT)?
        As they say in Odessa-Eto there are two big differences ...
        Well, or four small ones.
    2. AVV
      AVV 6 March 2014 10: 40
      +2
      Quote: ehan
      To break through reinforced concrete 60 m thick. ??? Author WHAT ARE YOU SMOKING?

      60 meters, not every nuclear weapon can penetrate, it may be thermonuclear, but what accuracy should be ???
  4. RomanKamch
    RomanKamch 6 March 2014 11: 20
    +1
    The tail wheels and the opening mechanism of this super bomb (3rd photo) are very similar to our anti-submarine missiles
  5. GHG
    GHG 6 March 2014 12: 45
    +1
    The problem with such ammunition is that of effectiveness, it is directly proportional to the height of the discharge and the flight speed of the carrier and inversely proportional to the quality of air defense and the quality of the construction of the fortification.
    The bomb MOP (massive ordnance penetrator - GBU-57A / B) is 6.2 meters in length, a solid steel fairing and can blast 7.9-61 meters of concrete (depending on its hardness) or up to 61 meters of rock before explosion.
    1. QWERTY
      QWERTY 6 March 2014 21: 28
      0
      Oh, some garbage .... can you imagine how much this is, 61 meter of concrete?
      1. And Us Rat
        And Us Rat 7 March 2014 07: 08
        0
        Quote: ytsuken
        Oh, some garbage .... can you imagine how much this is, 61 meter of concrete?

        At the point of impact of the bomb with concrete, a shock wave is contaminated, and since the velocity of propagation of oscillations in the medium is much higher than that in the air (up to several km / s), the front of this wave propagates faster than the penetration of the bomb. Powerful resonant vibrations occur at the boundary of the shock wave, which cause inelastic materials (stone, concrete) to crack and crumble. As a result, the bomb "flows" through the concrete crumb, and the small diameter allows the resistance of the reinforcing cells to be minimized (like a spear through fishing nets). On many penetrators, a solid impact rod is created with a certain geometric shape, for maximum concentration of the shock wave along the penetration of the bomb, and is covered with soft materials on top to reduce the chance of ricochet and better adhesion to the surface upon impact (like a suction cup).
        Py.Sy. - if you simplify it very much, a comulative jet several mm thick penetrates a meter of steel according to the same principle, only the metal does not crumble, but due to its elasticity, exhibits a flow effect.
      2. schizophrenic
        schizophrenic 10 March 2014 01: 49
        0
        Quote: ytsuken
        Oh, some garbage .... can you imagine how much this is, 61 meter of concrete?

        In the Second World War, the Germans used the used bombers as bombs, now I do not quite remember the TTX, but about a metal rod and 3t were installed in the bomber. explosives. During the explosion, a cumulative jet was formed and the rod flew at a speed of 11 km per second. There was a case when a rod pierced 17 meters of concrete, an explosion in the air resulted in a flame half a kilometer long.
  6. spirit
    spirit 6 March 2014 13: 38
    +4
    Grandpa Tallboy is happy with the younger generation smile
  7. korol yasheriz
    korol yasheriz 6 March 2014 14: 19
    0
    I love everything that bum
    1. Jin
      Jin 6 March 2014 16: 01
      +4
      Quote: korol yasheriz
      I love everything that bum


      While it is "banging", not for you, but for the enemy ...
  8. EvilLion
    EvilLion 6 March 2014 14: 57
    -3
    Deployment of a bomb at 50 km, it is only if you drop km from XIGUM with 25 at 20M, so you don’t need to write bullshit, with 2.5-6 km 8M the bomb at 0.8 will fly away, if not less.
    1. neri73-r
      neri73-r 6 March 2014 15: 38
      +5
      You need to be more careful, this is a planning bomb, not a freely falling one !!! 50 km, this is not the limit for them!
      1. And Us Rat
        And Us Rat 7 March 2014 07: 15
        0
        Quote: neri73-r
        You need to be more careful, this is a planning bomb, not a freely falling one !!! 50 km, this is not the limit for them!

        Far from the limit, for example, the Spice model bombs overcome up to 100 km at maximum launch parameters, and they can perform dive maneuvers (including maneuvering) over closer targets using the altitude reserve stored in the planning flight, which increases the approach speed and kinetic impact force .
  9. EvilLion
    EvilLion 6 March 2014 15: 02
    0
    Well, or a calculation. A man in free fall develops a speed of 50-60 m / s, the bomb is clearly no less, then from 8 km at a speed of 60 m / s it will fly 133 s, well, let 150 be accelerated. But if the bomb really wants to break through something, then it is better for it to have a speed much higher. If the carrier speed is 900 km / h or 250 m / s, then the bomb horizontally behind 150 s will shift to 37.5 km. It is in a vacuum. The atmosphere is much smaller.
    1. And Us Rat
      And Us Rat 7 March 2014 07: 24
      0
      Quote: EvilLion
      Well, or a calculation. A man in free fall develops a speed of 50-60 m / s, the bomb is clearly no less ...

      ... and much more, due to the ratio of mass and streamlined flow, with a maximum drop height, the free-falling bomb reaches transonic speeds in the last meters, even when dropped from slow-moving carriers.
  10. brainkiller
    brainkiller 6 March 2014 16: 36
    +1
    Quote: GES
    even a solid steel fairing can penetrate 7.9-61 meter of concrete (depending on its hardness) or up to 61 meter of rock before explosion.

    steeper than an asteroid straight, hard to believe.
    1. GHG
      GHG 6 March 2014 16: 58
      0
      Minerals are different. I would not compare sandstone, for example, with granite. According to this criterion, stones can be divided into three groups: strong (quartzite, granite, gabbro), medium strength (marble, limestone, travertine) and low strength (loose limestone, tuff). The strength of a stone depends on the hardness of the minerals that make up the rock and largely determine its properties.
      Key phrase UP TO 61, NOT FROM
  11. Technologist
    Technologist 6 March 2014 18: 06
    0
    And I liked the article, it is a pity we were only behind.
    1. Nayhas
      Nayhas 6 March 2014 19: 07
      +1
      Quote: Technologist
      And I liked the article, it is a pity we were only behind.

      GLONASS spoils the whole topic with high-precision weapons. We cannot use the "enemy" NAVSTAR ... And so bunker-bombs are useless without precise guidance, because their maximum effectiveness when dropped from a high altitude is achieved, but from 10 km. a free-fall bomb is definitely impossible to hit.
      1. And Us Rat
        And Us Rat 7 March 2014 07: 33
        +2
        Quote: Nayhas
        Quote: Technologist
        And I liked the article, it is a pity we were only behind.

        GLONASS spoils the whole topic with high-precision weapons. We cannot use the "enemy" NAVSTAR ... And so bunker-bombs are useless without precise guidance, because their maximum effectiveness when dropped from a high altitude is achieved, but from 10 km. a free-fall bomb is definitely impossible to hit.

        Well, actually, in modern bombs, GPS is more of an auxiliary tool, for the initial "rough" guidance, and the final guidance occurs using electro-optical systems combined with SAR / XSAR, this is what allows you to reach a CEP of a couple of tens of centimeters at ultra-long distances, in any weather conditions. (The only drawback is the high price)
  12. Burmistr
    Burmistr 19 March 2014 17: 48
    0
    It’s sad that we are in the pope