Military Review

Iranian underwater vehicle Taedong-B

19

The Taedong-B intelligence community designation refers to the boat building shipyard in North Korea where the ship was built. As part of the supply of weapons, two such devices were delivered to Iran in 2002. In the Iranian armed forces, it was renamed the Kajami Class, and later received the name Zulfikar. Interestingly, these devices are operated by the Islamic Revolutionary Guard Corps, and not as it would be logical to assume fleet or marines.


Iranian media and the Internet claim that its Iranian origin is definitely a mistake. Its design is closely related to the improved I-SILC (Improved Submersible Infiltration Landing Craft) agents for injecting, which are in service with North Korea and Vietnam. I-SILC is a further development of a small-sized vessel for the transfer of agents to South Korea. Early projects were speedboats disguised as fishing boats, but by the 80 years of the last century some options had already become semi-submersible. In the 90's, they became completely underwater, but could not move under water. Dive mode was used only to avoid collisions and hidden waiting near the shore. Taking into account the experience of the 1996 incident, when the South Korean coast in 150 km south-west of Busan sank one and I-SILC, the following models could already move under water thanks to an electric propulsion unit. In order to simplify the design and reduce the cost, the main diesel engines rotate the propellers, and the electric motors rotate the thrusters. The bow thrusters in the guide nozzles are not controlled, but the small handlebars installed immediately behind them partially compensate for this disadvantage.










Taedong-B is armed with North Korean torpedo tubes with an external installation for light torpedoes with a diameter of 324 mm with pulse start cylinders. This type of vessel could have been defined as “torpedo boat”, but from a logical point of view this light weapon is intended only for self-defense. The main activity of the Iranian underwater vehicles Taedong-B are special operations.



Characteristics (require clarification)
Length: 17 meters
Width: 3,3 meter
Height: 3,5 meters
Displacement: 22 tons
Speed: 40 nodes maximum on surface, node 3 ~ under water
Duration of the voyage: no data (modest)
Maximum working depths: 3 meters with air intake pipe, 20 meters maximum (estimate based on I-SILC unit)
Crew: 8 (4 crew, 1-2 cover, 1-3 agent)
Armament: 2 x 324 mm light torpedoes. Perhaps laying in the case of a portable anti-aircraft missile system or RPG grenade launchers and weapons the crew.
Power unit: 2 x diesel engines (no data) plus two electric motors
Sensors: base video camera, radar station for detecting surface targets and navigation, echo sounder



Materials used:
www.hisutton.com
www.wikipedia.org
www.iranmilitaryforum.net
Author:
19 comments
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  1. lilian
    lilian 25 February 2016 06: 42 New
    +6
    Wow. I did not expect from the North Koreans.
    Are there any analogues to this submersible boat? Who knows?
    1. tchoni
      tchoni 25 February 2016 07: 24 New
      0
      At one time, a diving missile boat project was being developed in the USSR. But, thank God, he remained at the project stage. There were also projects of diving aircraft ... But, the same is exclusively paper
      1. lilian
        lilian 25 February 2016 09: 02 New
        +6
        As for the underwater aircraft - I agree. But what's wrong with a submersible boat?
        1. tchoni
          tchoni 25 February 2016 12: 19 New
          10
          The bad thing about a submersible boat is that it combines all the difficulties and problems of a submarine and a boat without receiving the benefits of either the first or the second.
          So the propellers, power plant, the contours of the hull of the boat, designed for a high surface speed will most likely be very inefficient and noisy during the underwater course. And, on the contrary, overweight and volume of ballast tanks, life support equipment, etc., lead to the fact that the boat cannot show high speed characteristics during surface movement ...
          1. Talgat
            Talgat 25 February 2016 17: 08 New
            +1
            The plus is that countries such as the DPRK or Iran do not really sit and wait for China or Russia to supply them, but take some of the little things on themselves - Iran makes drones (by the way, it uses in Syria) a number of other equipment, the DPRK missiles (due to "sanctions" neither Russia nor China will be able to supply them) and at the same time shares technologies with Iran

            Of course, the main things - air defense and aviation (after lifting the sanction?) Iran will have to buy in Russia
            Or Russia (or China) and Iran will find a way to bypass the "menacing shouts of the Washington regional committee" - to supply Iran with avionics engines - and transfer technologies to the airframe - it will turn out like an "Iranian fighter"
      2. Gray brother
        Gray brother 25 February 2016 10: 07 New
        +5
        Quote: tchoni
        . But, thank God, he remained at the project stage.

        But the carrier of the divers "Triton", it seems, did not remain.

        Tests of the submersible boat "Triton-NN", 2008 (http://otvaga2004.mybb.ru/).
        1. killganoff
          killganoff 25 February 2016 12: 37 New
          +7
          In comparison with the Soviet "Piranha" pr.865, "Triton" is a homemade smuggler-amateur.
          1. Gray brother
            Gray brother 25 February 2016 13: 04 New
            +1
            Quote: killganoff
            In comparison with the Soviet "Piranha" pr.865, "Triton" is a homemade smuggler-amateur.

            This is clear. But "Piranha" must go under its own power to the place, and "Triton" can be transported on a carrier ship.
          2. Talgat
            Talgat 25 February 2016 17: 02 New
            +1
            Quote: killganoff
            In comparison with the Soviet "Piranha" pr.865, "Triton" is a homemade smuggler-amateur.



            But it’s incorrect to compare devices different in class and purpose

            Compared with Piranha - then the Iranians have small submarines in many - very similar in appearance in size
      3. iConst
        iConst 25 February 2016 10: 40 New
        +4
        Quote: tchoni
        At one time, a diving missile boat project was being developed in the USSR. But, thank God, he remained at the project stage.
        - What suddenly? A boat sinking to a shallow depth will not be detected by either AWACS or other means. Only visually from above with clean water and an accurate span over it is a difficult condition.

        My strong belief is that the development of military equipment will go towards robotic small objects.

        This is facilitated by the development of AI, compact and powerful power sources and assemblies, and communication capabilities.

        It will be orders of magnitude more difficult to cope with a dozen diving robotic boats in the sea or mini-tanks on the battlefield, and the effect is undoubtedly higher than with one vessel or supertank equal in firepower to this "pack".

        In this case, the total costs will not be much more (if at all more), but the profit will exceed the cost.
        1. tchoni
          tchoni 25 February 2016 12: 42 New
          0
          Quote: iConst
          What suddenly? A boat sinking to a shallow depth will not be detected by either AWACS or other means. Only visually from above with clean water and an accurate span over it is a difficult condition.

          Only he will be heard by any GAS, as it were, no further than avax will see him. Moreover, both in surface and underwater modes
          1. iConst
            iConst 25 February 2016 13: 46 New
            0
            Quote: tchoni
            Only he will be heard by any GAS, as it were, no further than avax will see him. Moreover, both in surface and underwater modes

            You can’t bring RCC to GAS. And then - do not underestimate the jamming, if that. It is even simpler than electronic warfare.
            1. tchoni
              tchoni 25 February 2016 15: 13 New
              +1
              PCR to spend on a boat - hto from a cannon to fire on sparrows.
              And, to send a guard to an area with an incomprehensible fuss - easily. Or a patrol plane (helicopter).
              In general, the landing of various agents of saboteurs is a quiet and secret affair. And it’s better to carry it out to the area of ​​attention without attracting it. And for this submarine is a more suitable option.
  2. cap
    cap 25 February 2016 09: 22 New
    +1
    It’s suitable for saboteurs, even if this thing works once for a large target.
    Leaving after a sabotage is a problem, even for high-speed vehicles. Most likely a kamikaze boat.
  3. Mr. Pip
    Mr. Pip 25 February 2016 09: 34 New
    +1
    A futuristic little thing, but a big question not only in demand, but also in quality - 2 diesel engines (performance characteristics - "classified" - what can be secret in the performance characteristics of a diesel engine, think for yourself) - "modest" PP (probably very modest) - but generally interesting what kind of torpedoes, judging by the presence of RPGs, probably also "modest" (RPGs on a boat!) - but in general the idea is interesting, of course.
    1. Gray brother
      Gray brother 25 February 2016 10: 11 New
      +3
      Quote: Mr. PIP
      why there may be a secret in the performance characteristics of a diesel engine yourself think)

      Fuel consumption. If you know it, then you can determine the range.
  4. engineer
    engineer 25 February 2016 11: 33 New
    0
    it is not possible to define avax. but any underwater object running on diesel engines makes so much noise. that the acoustics for 500 kilometers 'ears fade' and there is nothing difficult in detection and defeat.
  5. Dimon19661
    Dimon19661 25 February 2016 14: 39 New
    +2
    Nothing good. Another miracle is the weapon of Korean comrades, obsolete 60 years ago. Serious weapons manufacturers have not been engaged in such hybrids for several decades due to their extremely low efficiency, reliability, disgusting crew working conditions. And if we add here outdated technologies, the combat value of such apparatus tends to zero.
  6. oxotnuk86
    oxotnuk86 25 February 2016 21: 47 New
    0
    Not knowing the performance characteristics, except for the weight and size, for what purposes this device was purchased (made) by Chaim. We are missing a key point, the apparatus for the "Guardians of the Islamic Revolution" and this is the elite of the armed forces of Iran, so it is necessary.
  7. Sergey_G_M
    Sergey_G_M 26 February 2016 22: 06 New
    +1
    With all due respect to the commentators, I will nevertheless express my point of view. Yes, mini submarines are better, but also an order of magnitude more expensive, and boats are faster, but also more noticeable. This device is narrowly specialized in the area of ​​application - for example, for the Iranians this is the Persian Gulf, but it is audible, but against the background of the number of ships and boats in the area of ​​operation, this is not so important, but having a couple of dozen such boats, the Iranians can significantly disrupt shipping in the Persian Gulf and cause some trouble to your opponents. This ship is cheap, it is easy to hide it at the base, so it seems to me in terms of the price-effectiveness parameter it is very good for Iranians (again, considering its area of ​​application).