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60 posters

    Project 677: Lada/Amur(export) class Submarine

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    Arrow

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    Project 677: Lada/Amur(export) class Submarine - Page 22 Empty Re: Project 677: Lada/Amur(export) class Submarine

    Post  Arrow Fri Mar 19, 2021 9:07 am

    The question is whether the new Lady will already have an AIP system? What about the Kalina project?
    GarryB
    GarryB

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    Post  GarryB Fri Mar 19, 2021 10:22 am

    Some simply have no patience and demand things now or destroy it and start again... obviously leads to a lot of waste and inferior results.

    If it is easy to achieve then is it worth trying in the first place?

    The new Ladas will likely have Lithium Ion batteries and therefore wont need AIP.

    To remain submerged for two weeks or more you need to operate cooking equipment and propulsion and freezing units... internal lighting... carbon dioxide scrubbers and air circulation and heating and cooling systems... simply replacing old conventional bulbs with LED lights probably saved a few hours of extra operations on batteries, but all the computers and sonar and communications equipment also need to run... but guess what... having a sub that is half the weight of western equivalent long range subs and with half the crew size saves power too so massively reduced power requirements along with better batteries can make AIP redundant for the Russian Navy... if they need a long range sub to run submerged for 4 months... they already have Yasens and other subs for that.

    Big_Gazza, kvs, slasher and Hole like this post

    PapaDragon
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    Post  PapaDragon Mon Mar 22, 2021 7:32 pm


    Japanese are replacing AIP on their next two Soruyu class subs with diesel electric plant and lithium batteries

    They see this as superior approach which gives them much greater endurance

    Russia should be doing same with Ladas
    GarryB
    GarryB

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    Post  GarryB Tue Mar 23, 2021 7:27 am

    The key is getting the Lithium Ion batteries right so they don't become a problem.

    They are much lighter than Lead Acid batteries, and should be more compact, but the chemicals are obviously volatile... that is how they work of course.
    George1
    George1

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    Post  George1 Fri Apr 16, 2021 2:45 pm

    Northen fleet to recieve at least 4 Ladas

    According to the source, the problem with providing forces fleet diesel-electric submarines will be resolved by 2027. Until this date, the fleet will receive at least four submarines as part of the program to equip the combat personnel with a non-nuclear submarine component.

    At the same time, the source emphasized that unlike the Pacific Fleet, which will receive diesel-electric submarines of the 636.3 Varshavyanka type, the Northern Fleet will receive submarines of the 677 Lada type. We are talking about submarines under construction at the "Admiralty shipyards".

    At present, two submarines of the Lada project are under construction in St. Petersburg - Kronstadt and Velikiye Luki. The submarines are the first and second serial ones after the lead submarine "St. Petersburg". "Kronstadt" is being completed afloat, "Velikie Luki" will be launched in 2022. The contract for the construction of the third and fourth submarines of the project has been signed, but the laying is not planned yet. The series is long-term construction due to the introduction of improvements to the project, as well as the development of VNEU.

    https://en.topwar.ru/182023-po-programme-osnaschenija-napl-severnyj-flot-poluchit-dizelnye-podlodki.html

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