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    Russian AIP submarine technology

    Tsavo Lion
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    Post  Tsavo Lion on Sun Feb 16, 2020 7:16 am

    yes, it got mixed up, thx! this project may superseed the Kalina.
    GarryB
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    Post  GarryB on Sun Feb 16, 2020 12:08 pm

    I doubt it... as far as I can tell it is a different sized version of the Lada design... they were talking about getting a foreign customer to invest in it to get it built...

    It is quite an interesting vessel with a crew of just 20... remember to operate 24/7 that means three shifts of crew working 8 hour shifts with 8 hours on and 16 off, so it probably normally operates with an actual crew of about 6 who work for about 8 hours and then are relieved for the next 8 hours by another crew of 6 who work and then are relieved by another 6 crew who after their 8 hours by the first 6 crew again... that would be 18 men with the commander and second in command probably taking 12 hour shifts each so at any one time there would be 7 guys operating the ship and the remaining 13 will be resting or eating or sleeping...

    With the modern processing power on board such a sub I would suspect during there free time there is potential for some awesome LAN games...
    Isos
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    Post  Isos on Sun Feb 16, 2020 12:20 pm

    Tsavo Lion wrote:yes, it got mixed up, thx! this project may superseed the Kalina.

    It's a small sub for export. Nothing to do with Kalina.
    jhelb
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    Post  jhelb on Mon Feb 17, 2020 8:07 pm

    GarryB wrote:I doubt it... as far as I can tell it is a different sized version of the Lada design... they were talking about getting a foreign customer to invest in it to get it built...

    In the link about this submarine that you have shared it states that this submarine does not need to climb to the surface for air intake, as it will be equipped with two innovative gas turbine engines that are not dependent on air from the atmosphere.

    Is this a new technology that is being developed?


    Isos wrote:It's a small sub for export. Nothing to do with Kalina.

    Do you have any more information about this sub? Thanks.
    Isos
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    Post  Isos on Mon Feb 17, 2020 8:45 pm


    Do you have any more information about this sub? Thanks

    There is a thread about russian midget submarine in "russia navy" part of the forum where we talked about such subs.

    You also have on google many articles about this sub. Here is one about the last p 750 design :

    http://www.hisutton.com/Russian_P750B_Submarine_Design.html


    Here is the video of this sub but half of the images are not the sub but other subs.

    jhelb
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    Post  jhelb on Mon Feb 17, 2020 9:31 pm

    Isos wrote:

    http://www.hisutton.com/Russian_P750B_Submarine_Design.html

    So max crew is around 20. If Spetnaz are carried it means there will be fewer submariners, right?

    Also, 12 torpedo tubes are carried in a frame which is lowered in to the outer hull from above. I'm unable to understand why this new design for the torpedo tubes?
    GarryB
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    Post  GarryB on Tue Feb 18, 2020 7:14 am

    In the link about this submarine that you have shared it states that this submarine does not need to climb to the surface for air intake, as it will be equipped with two innovative gas turbine engines that are not dependent on air from the atmosphere.

    Is this a new technology that is being developed?

    Not a link I posted but it is supposed to use some form of AIP... I have no idea what form of AIP it uses...

    So max crew is around 20. If Spetnaz are carried it means there will be fewer submariners, right?

    Probably not... the crew would be needed to operate the sub... they might carry less torpedos and armament perhaps.

    Likely they would have subs especially intended to carry and deploy and/or recover special forces... AFAIK there is one Delta III SSBN converted to underwater "research".

    They likely will have other smaller vessels too...
    jhelb
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    Post  jhelb on Tue Feb 18, 2020 9:51 am

    GarryB wrote:Not a link I posted but it is supposed to use some form of AIP... I have no idea what form of AIP it uses...

    I was referring to the link that you posted in one of your previous tweets. This one ⬇

    GarryB wrote:No. That is a sea plane... not a submarine.

    I think you meant this link:

    https://zen.yandex.ru/media/they/p750b--pervaia-v-mire-vozduhonezavisimaia-napl-5e105e48e6e8ef00b12d7c74


    That aside, 12 torpedo tubes are to be carried in a frame which will be lowered in to the outer hull from above. So where will they place the AIP? There won't be any room for it.
    GarryB
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    Post  GarryB on Wed Feb 19, 2020 3:47 am


    I was referring to the link that you posted in one of your previous tweets. This one

    Sorry, I didn't really read the link in detail... you posted a link but it was directed to a different story on the same website... I noticed your error and posted the correct link to the story you were talking about, but I really didn't read in detail that link...

    This sub is designed from the start to have AIP propulsion... it isn't an add on... it is part of standard equipment.

    This sub is a reduced size Lada class sub... the Lada was supposed to have an AIP propulsion system included, but that has been delayed.

    This Lada class sub called P750 or something has AIP built in to the design, but as far as I know it is for export to countries like India if they want it...
    dino00
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    Post  dino00 on Thu Jun 25, 2020 10:37 am

    This year, the St. Petersburg Maritime Bureau of Engineering "Malachite" will continue to test an air-independent power plant with a single gas turbine engine. This is stated in the company's annual report for 2019, published by the corporate disclosure center .

    According to the developers, the installation allows the use of NAPL in all modes of surface and scuba diving with a smooth transition of the main gas turbine engine from the operating mode from atmospheric air to the closed loop operation mode and vice versa. In a closed cycle, a heavy artificial gas mixture is used.

    The ability to supply shipboard electricity consumers and the battery charge will be provided in all modes.
    It is noted that in the prototype model of VNEU the serial non-specialized gas-turbine generator unit GTA-18P is used. In 2019, it was finalized at the manufacturer, Chelyabinsk SCB Turbina JSC. Malachite announced the corresponding purchase in the summer of 2018. The cost of the work, according to the documentation of the procedure , amounted to 1.98 million rubles. After that, the tests were continued at the stand.
    Technical solutions for the new VNEU are protected by two patents.

    https://flotprom.ru/2020/%D0%9E%D1%81%D0%BA11/

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    dino00
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    Post  dino00 on Fri Jul 24, 2020 9:27 am

    VNEU for submarines of the Russian Navy will be created in 2023

    MOSCOW, July 24 - RIA Novosti. An air-independent (anaerobic) power plant (VNEU) for submarines of the Russian Navy will be created by the end of 2023, design work is currently underway, said Alexey Rakhmanov , General Director of the United Shipbuilding Corporation ( USC ) .

    In October 2019, the Rubin Central Design Bureau (developer of VNEU) and the Ministry of Industry and Trade signed a state contract for the creation of a prototype shipboard VNEU.

    "Design work is underway. However, a decision on the practical implementation of this technology in specific projects will be made only based on the results of the contract - not earlier than the end of 2023,


    https://ria.ru/20200724/1574831721.html

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