Military Review

KAB-500S: drop-and-forget air bomb

KAB-500S: drop-and-forget air bomb

As early as the beginning of 2021, it was reported that the production of corrected air bombs (KAB) of 250, 500 and 1500 kg calibers had started in Russia.

It would seem that, given modern aviation systems at the disposal of the Russian Aerospace Forces, even if we do not take into account the hypersonic "Dagger", the use of aerial bombs looks like something very outdated and inefficient. But not everything is so simple.

The thing is that we are talking about the so-called "smart" bombs, which, due to their accuracy, not only significantly increase the effectiveness of air strikes, but also minimize the number of accidental victims.

A striking example of such ammunition available to the RF Armed Forces is the KAB-500S. Unlike its predecessor KAB 500, which was put into service in 1975, but has not lost its relevance today, the above-mentioned modernization appeared already in the XNUMXst century.

KAB-500S received a body formed by several conical and cylindrical elements. For aerodynamics, X-shaped stabilizers on the head fairing and tail wings with rudders are responsible.

Another feature of the "smart bomb" is a contact fuse with three types of delay, which allows you to set the detonation with some delay, for example, after penetration into the object.

The PSN-2001 system, which receives a signal from GLONASS, is responsible for the accuracy of the ammunition. The target coordinates for the KAB-500S are set before the departure of combat aircraft or already directly on board. Thus, the bomb works on the principle of "dropped and forgotten."

The KAB-500S drop range reaches 9 km.

At the same time, the most important advantage of these ammunition is that high efficiency is ensured by rather low costs. Unlike missiles, guided bombs are relatively inexpensive to manufacture.

About the types of "smart bombs" in service with the Armed Forces of the Russian Federation, and the principles of their operation, says "Military Acceptance".


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  1. antivirus
    antivirus 13 March 2023 19: 57
    Not expected. Such efficiency in the case of having no taxes.
    Not even three years and three days have passed.
    Though not 70 km planning
    1. azkolt
      azkolt 13 March 2023 20: 37
      Quote: antivirus
      Not expected. Such efficiency in the case of having no taxes.
      Not even three years and three days have passed.
      Though not 70 km planning

      I just read it in the cart today! I don't know how to upload a picture here.
      "Grom" is a new Russian winged aerial bomb. "Thunder" has a length of about 4,2 m and a diameter of 0,3 m. The main feature of the bomb is its range - up to 120 (!!!) kilometers.

      For comparison, modern adjustable bombs are not capable of traveling more than 10 kilometers.
      Thus, aircraft and drones can use Thunder without getting into the zone of operation of enemy air defense systems.
      Our Aerospace Forces began to use the New Rocket "GROM" against the Nazis.
      I found it, I don't know if it's this one. the article is old, but we have ten years in such matters is not a deadline!)))
      Pi Xi It is interesting now to read the comments of the then smart people!)))
      1. Dost
        Dost 13 March 2023 20: 48
        120km is with a jet engine, like an actino-rocket projectile. Accelerating engine.
      2. Ingvar 72
        Ingvar 72 13 March 2023 20: 51
        Quote: azkolt
        I don't know how to upload a picture here.

        First you need to copy to your computer.
        Quote: azkolt
        For comparison, modern adjustable bombs are not capable of traveling more than 10 kilometers.

        The SDB GBU-39 bomb flies 110 km. JDAM at 75 km. The pendos already have everything in service.
      3. kapitan92
        kapitan92 13 March 2023 21: 40
        Quote: azkolt
        "Grom" is a new Russian winged aerial bomb. "Thunder" has a length of about 4,2 m and a diameter of 0,3 m. The main feature of the bomb is its range - up to 120 (!!!) kilometers.

        120 km???
        Created "Thunder" on a modular basis, which allows it to use three types of aviation ammunition.

        The first is the 9-A-7759 guided missile with a warhead weighing 315 kilograms. In terms of its combat effectiveness, it is 1,8 times superior to the free-falling aerial bomb OFAB-250-270.

        The second is a guided bomb 9-A1-7759. It has two charges with a total mass of 480 kilograms. The maximum flight time is about 260 s. During this time, it can cover up to 65 kilometers. The bomb in terms of its combat performance is 1,5 times superior to the OFAB-500U bomb.

        The third type of ammunition in Grom's arsenal is also the 9-A2-7759 bomb, but with a volume-detonating warhead weighing 370 kilograms. That is, we are talking about the so-called vacuum or thermobaric bomb. It is equipped with a laser sensor that allows you to determine the optimal height of the explosion. The effectiveness of the bomb is two times higher than the conventional KAB-500OD corrected air bomb.

        The maximum launch height of the Thunder is more than 10 km. Its carriers can be both Su-34 fighter-bombers and MiG-35 multipurpose fighters.
    2. shikin
      shikin 13 March 2023 21: 49
      The name - "dropped and forgotten" in relation to bombs - how is it? And the usual FAB-500 - is it "dropped and remembered"?
  2. Adrian28
    Adrian28 13 March 2023 19: 57
    As early as the beginning of 2021, it was reported that the production of corrected air bombs (KAB) of 250, 500 and 1500 kg calibers had started in Russia.

    This article now sounds like a joke. fool
    1. Alien From
      Alien From 13 March 2023 20: 03
      This is a joke, but sad, alas .... sad
  3. Sergey Valov
    Sergey Valov 13 March 2023 20: 11
    "tune detonation" - not a detonation, but an explosion. Detonation and explosion are not synonyms, they are different processes.
  4. agoran
    agoran 13 March 2023 20: 15
    Well, actually, tests were carried out with the KAB-250 from the Luninets airfield back in the early 80s.
    In the MiG-23 twin, the operator removed the reset and control, the techie gave the operator a package and immediately warned that if you throw up the cockpit, you will wash it until it sparkles like cats, you understand.
  5. kill the fascist
    kill the fascist 13 March 2023 20: 16
    9 km. not God knows what, but in the absence of a better, quite suitable ammunition. Pour the Nazis with these bombs.
    1. Cympak
      Cympak 13 March 2023 20: 37
      Quote: Kill the fascist
      9 km. not God knows what, but in the absence of a better, quite suitable ammunition. Pour the Nazis with these bombs.

      Where are they, these KAB-500S? Why don't they bombard the Natsiks with them?
      And there are several reasons:
      - the maximum height of the discharge is only 5 km, the range is 7, i.e. you have to enter the zone of action of the BUK air defense system. Why is the height only 5 km? The chief designer does not want to answer, how did it happen? After all, the greater the drop height, the farther a satellite-guided bomb flies, it does not need target illumination. For Americans, similar JDAMs fly tens of kilometers.
      - the cost of ammunition. Unlike the "stupid" Americans who convert Mk 82/83/84 free-falling bombs into high-precision JDAMs using upgrade kits, we went our own way to make a unique (ie expensive bomb). UMPC, on the other hand, looks like a homemade handicraft assembled, somewhere in the garage.
      - The Ministry of Defense of the Russian Federation, apparently, does not purchase these KAB-500S (including for the reasons indicated above), there are no video / photo materials from the NWO zone where KAB-500S would be visible suspended under aircraft pylons
      1. d4rkmesa
        d4rkmesa 13 March 2023 21: 02
        In addition, the developer of the Glonass receiver, MKB Compass, tried to go bankrupt back in 2016. Most likely, this enterprise is in a bad condition. The KAB-500S itself is a remake of the old Soviet KAB-500L, NNP. As a result, apparently, taken together, they decided to bet on UPABs in the year 2018 that way.
        1. cpls22
          cpls22 13 March 2023 21: 46
          the developer of the Glonass receiver, MKB Compass, tried to go bankrupt back in 2016. Most likely, this enterprise is in a bad condition.

          Ate KRET, but still alive.
      2. Boa kaa
        Boa kaa 13 March 2023 21: 48
        Quote: Cympak
        the maximum drop height is only 5 km,

        Apparently, everything depends on the range of sighting of the target, with which the TLV system of the product is capable of capturing the target. The Yankees have a slightly different aiming system. And the aerodynamic quality of the GBU is much higher than our KAB. There are full-scale planes (wings), not like ours - plumage ... for stabilization in flight to the ground ... From here everything goes.
        1. Cympak
          Cympak 13 March 2023 22: 39
          the satellite guidance system does not need sighting, only the exact coordinates of the target in 3-dimensional space are needed, which can be obtained using satellites for remote sensing of the earth, using radar and / or a laser rangefinder and PNC of a carrier aircraft. In extreme cases, Yandex maps to help.
          And who is stopping you from developing bombs that are analogous to the high speed low drag bomb Mk 82/83/84?
          Do you understand why our bombs are blunt?
          This is done on purpose so that the bomb does not accelerate to transonic speeds, at which seal surges begin and accuracy decreases, but this is the last century.
  6. paul3390
    paul3390 13 March 2023 20: 20
    air bomb operating on the principle of "dropped and forgotten"

    And what - about the usual cast-iron bomb of the times of the Second World War, one must remember very well after the reset? belay what
    1. Alien From
      Alien From 13 March 2023 20: 35
      Then report to the authorities .... forgot?)
  7. wlkw
    wlkw 13 March 2023 20: 36
    The KAB-500S drop range reaches 9 km.

    At what height and at what speed?
  8. Nikolaevich I
    Nikolaevich I 13 March 2023 20: 43
    A bomb that "works" according to the principle: "drop and forget" ...! This is something else! In Russia, there is the Ministry of Defense, which has long been "working" according to the principle: "Give it up and forget it!" ... In 2003, "Basalt" developed the MPK (planning and correction module) for aviation "cast iron"! And following the "voiced" principle, the Moscow Region "dropped and forgot" this proposal! "Toka-current now" "effective, fuck them by the leg, managers" from the Moscow Region began to move "in the waddle"! Somehow they set up some kind of production of "Krasnopol"! But what about the simpler and cheaper "Sentimeter-M"? After all, in the "tenth" years of this century, the Ministry of Defense "bleated" something about the intention to adopt the "Sentimeter-M" into service! And what? And this "path in the dark"? And the Dynamics correction module, which could turn artillery "cast iron" into high-precision (or almost ...) ammunition for a thousand bucks! Well, okay 4M0cnost of the RF Ministry of Defense in "peacetime"! (This, as they say, is "half the trouble"!) But the war has been going on for the second year! More Russian soldiers have already died than in "Afghan" in 10 years! And who "heard" about the production and use of the mentioned "Dynamics" module ?!
    1. Alien From
      Alien From 13 March 2023 21: 10
      Nikolaevich, well, you yourself said that you abandoned it and forgot ....... why ask sinners of us ... feel get well! drinks
    2. Boa kaa
      Boa kaa 13 March 2023 21: 55
      Quote: Nikolaevich I
      In Russia, there is the Ministry of Defense, which has long been "working" according to the principle: "I quit and forgot!"

      The tragedy of the situation is that "there is no one to ask"! Around "ours", here, as if inadvertently not to offend the "little man". Thinking about it is a completely different story. This is for Comrade. Stalin, please! am
  9. Duncan
    Duncan 13 March 2023 20: 45
    What's so smart about her? If it had a camera and recognition of the terrain and targets, and the accuracy of the meter ... and even this at the present stage of development of AI is not enough to call "smart".
  10. MaxN
    MaxN 13 March 2023 20: 57
    And to attach wider and longer wings to it, so that there is not enough metal in the country to fly further?
  11. biznaw
    biznaw 13 March 2023 20: 57
    Something the journalist messed up again. Bomb range 9 km? Is it definitely a planning bomb worth more than a lam? A simple fab will fly this distance dropped from the height of those 9000 meters and even further. Was it worth it to fence the garden because of such a distance. Can the drop height be specified but not the gliding range?
    1. Boa kaa
      Boa kaa 13 March 2023 22: 20
      Ours, as a rule, underestimate the performance characteristics and give data on "E" - the export version.
      KAB-500S will be used as part of the armament of modern combat aviation systems in the altitude range from 500 m to 10 km at a carrier speed of 550-1100 km/h, KVO = 5-10m.
      2. The cost of KAB-500S is about 3 million rubles
      3. It's "worth it" to do it, because this is the best way to dispose of the "Soviet stocks".
    2. Cympak
      Cympak 13 March 2023 23: 36
      Bomb range 9 km?

      Apparently, everything rests on the supply of gas on board the bomb, which is spent on the control rudders.
      Most likely this is a legacy inherited from the KAB-500L, for which the range of 9 km was sufficient, taking into account the practical range of target illumination from the carrier aircraft.
  12. Vlad Gor
    Vlad Gor 13 March 2023 21: 10
    It's a shame for modern designers, they can't even repeat the American planning bomb. the Americans put a controlled booster block on cast iron and a bomb flies 120 km, cheap, angry and high hit accuracy.
    1. Boa kaa
      Boa kaa 13 March 2023 22: 24
      Quote: Vlad Gor
      It's a shame for modern designers, they can't even repeat the American planning bomb.

      Our Kulibins made the UAB "Grom" and the rocket of the same name, which, perhaps, are cooler (albeit more!), Than the GBU-39 will be. So, especially do not worry - we will catch up! Life makes you move...
      1. Cympak
        Cympak 13 March 2023 22: 58
        And the French kulibins in the mid-2000s made a modular ASSM HAMMER with 3 types of interchangeable seeker (SNS. LGSN, IKGSN), a gliding or solid-propellant booster, in calibers of 250, 500, 1000 kg. That's what you need to focus on.
  13. igos palatkin
    igos palatkin 13 March 2023 22: 00
    Calm down brothers. Russian military doctors are slowly, of course, but pleasing with another "vaccine" for patients with hohlopia. I personally vote for kab1000 - kab1500. For the virus has penetrated deeply and the doctor recommends a mortuary.
  14. LuidmilaN1956
    LuidmilaN1956 14 March 2023 05: 50
    New bombs are a good thing. But why wasn't our old free-falling aerial bombs modernized at the time? Back in the early 2000s, the BASALT NPO suggested that the RF Ministry of Defense equip all our free-falling aerial bombs with planning and correction modules. Apparently then the RF Ministry of Defense was not interested in this. But in vain! Now these bombs would be useful to our aviation.

    We could have had our own JDAM analogue in service for a long time.
    1. AlexWar
      AlexWar 14 March 2023 19: 12
      The fact of the matter is that not those people who thought about the security of the country came to the Moscow Region, they came in the 90s and said that they did not need an army, that they would buy everything abroad. Then Putin came and started throwing some money around. But that's how it ended. For 30 years of reign, he was never able to create a strong army. In fact, the army was in reform mode. And for some reason our government was afraid to print more money for the army. I don’t know who invented them that you have to live without loans? I don’t understand why they didn’t give money for roads, for example, the country’s infrastructure and new achievements that we could introduce, don’t print them? All kaike the funds. In fact, money has become cashless.
      The salary in the army is non-cash and few people keep money at home, all payments are non-cash.
      The United States has accumulated trillions of debts and this does not affect their lives in any way.
      Whoever is smart in the government sits and does not give money, they are essentially virtual. They are taxed back
      Take those who serve in the army, they often risk their lives, so why don't we keep the army more? Let the guys serve, train constantly
      I think that the country's security issues should be in the first place and money should not be saved. It is necessary to fill the warehouses with weapons, fill as much as you need
      Then they produce planes, well, why can't some of them be placed in NZ warehouses, and some should be put up for sale? Not quite clear.
      Well, and why parks with NS never pass the test, so that they start the equipment and service it once a year, drive hundreds of kilometers, identify and fix shortcomings. Previously, all this equipment was dismantled, I can imagine that with T-62 tanks, most of them are all dismantled
      If there were an army of 2 million people who could be sent, there would be no problems.
      Let's be honest that the Ukrainian army is fighting no worse than ours. We ourselves gave them time to learn, plus the West helped them
      At first, our army did not have enough people, they lived to the point that there were not enough shells, then everything new is not in the warehouses, if there was everything old. And the Moscow Region did not even buy controlled bombs for its warehouses. The deputies would have to check all the warehouses of the Defense Ministry. We need a monitoring group to put the issue before the president.
      We need a commission that should look for those responsible for the shortages and planning.
      1. Zerkalo
        Zerkalo 14 March 2023 21: 37
        Because the Fed and the Central Bank. If I understood everything correctly from open sources, then we could not print more rubles than we sold goods (including oil and gas) abroad. Now, I hope we can move away from this.
        The developments of KABs are quite old, all these lorries are the brainchild of the 90s, when a couple of pieces were made a year, and then, it’s not clear how. All developments have been / are taking a very long time for the same reasons - underfunding. It is impossible, having one gvm and one sample, to carry out all the tests required by the regulatory documentation. Let's not forget that factories have not fattened in recent years either - so we have piece options that have barely been brought to mind, but which now everyone wants a lot, even more. Everything takes time. Now there is a phase of awareness-acceptance, let's see what happens in the end.
    2. wladimirjankov
      wladimirjankov 14 March 2023 20: 40
      We could long ago have not only JDAM analogues, but also modern reconnaissance and attack drones and normal secure digital communications and AWACS and remote sensing satellites and much more, including a combat-ready army, if its command were gifted, responsible, not corrupt, loving their homeland generals and military leaders with combat experience and military education. Instead, Putin put at the head of the army do not understand who. People who had nothing to do with the army, military affairs. These Ivanov, Serdyukov, Shoigu have done their disastrous deed. They missed the time and opportunity to revive and strengthen the army after the collapse of the USSR. And what could be expected from amateurs, purely civilian people who do not understand anything and know about the army and military affairs. Our permanent president is responsible for the current state of our army.
  15. Kirill Prozorovski
    Kirill Prozorovski 14 March 2023 09: 52
    In Syria, we were told that the new sights allow us to bomb with unimaginable accuracy. Now you don't need anything expensive accurate bombs without any newfangled sights. And how far inland are they going to fly in order to bomb 9 km away. the Americans are attaching accelerators to throw a bomb at 150 km, and here 9. There is something to be proud of.
    1. Zerkalo
      Zerkalo 14 March 2023 21: 41
      There was no air defense in Syria. And the sight mounted on the SU24 gives a miss on the FAB about the same as on the KAB. Moreover, we all remember the first footage from Syria of the use of KABs. The miss was decent. It is cheaper, of course, to use FABs, but do not forget about CABs and bring them to mind. Because, as written above, JDAM is a good example of using high-precision weapons.
  16. Ross xnumx
    Ross xnumx 14 March 2023 10: 40
    Here it is - a weapon of retaliation against the American military bases in Syria !!!
    And in Syria there are pilots and bombers ...
  17. AlexWar
    AlexWar 14 March 2023 19: 09
    Dropped forgot. But a lot of such bombs need to be made in order for aviation to work. Or take the old ones and upgrade them.
  18. wladimirjankov
    wladimirjankov 14 March 2023 19: 26
    The KAB-500S drop range reaches 9 km.

    This is of course very small, if so. And how then does it differ in this indicator from the KAB-500L, with laser guidance, in which the range can be no less. With Glonas, it should fly at least 30-50 km. Otherwise, why such an expensive bomb is needed. Wouldn't it be easier to attach a set of retractable wings and a glonas navigation and control unit to simple cast-iron FAB 250, 500, 1500, of which we have large stocks. It will be much cheaper and more efficient than KABs.
    1. Zerkalo
      Zerkalo 14 March 2023 21: 48
      Unfortunately, we are far behind in our developments. All these adopted samples were developed in the 80-90s, when it was relevant. Now. Of course, it looks wildly, a little expensive and unjustified. Now in favor is the release of small-sized bombs with great accuracy and long range - I threw off such a dozen kilometers of commercials for 100 and calmly fly home for a new portion.
      BUT this is better than nothing, such developments are underway, perhaps they will give a magical accelerating kick now.
    2. Cympak
      Cympak 15 March 2023 00: 46
      The thing is that the KAB-500S is based on the KAB-500L and has the same characteristics in terms of range and altitude of use, which is determined by the use of the same components and assemblies that provide guidance to the KAB.
  19. AlexWar
    AlexWar 14 March 2023 19: 38
    We had everything, but it was not accepted into service. Who should be responsible for this?
  20. certero
    certero 15 March 2023 06: 09
    An attempt to give a good face to a bad game. A drop range of 8 km is now not suitable in air defense conditions.
  21. Maks1995
    Maks1995 16 March 2023 09: 27
    Win or not?
    I remember when the Syrians shot down our plane, the Jews dropped bombs 100 km away.
    on a star to NWO they boasted a range of up to 70 km.

    In any case, any classic bomb - dropped and forgotten, there is nothing to brag about at all.