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  1. #1
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    BM-1 depth charge

    Hello All

    I am looking for information about the Russian depth charge BM-1 and especially for sectional drawings, it would be nice if someone can help me here.
    thanks in advance
    Regards jack

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    Zorro (5th April 2017)

  3. #2
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    BM-1
    Date Enty In Service 1933
    Diameter 252mm
    Height 420mm
    Total Weight 41 kg
    Explosive Charge 25 kg TNT
    Activation depth: 4-5 meters
    Sink Rate 2.1-2.5 m/s
    Fuze Kalinin K-3
    BM-1 depth charge PICT0445.jpg BB-1 and BM-1 construction 1406909757_gb_bb-1.jpgBM-1 1406910563_gb_bm-1.jpgBM-1 04_big.jpgBM-1 02_big.jpg
    Last edited by Dreamk; 16th November 2016 at 10:39 PM.

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  5. #3
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    Quote Originally Posted by jacleon1785 View Post
    Hello All
    I am looking for information about the Russian depth charge BM-1 and especially for sectional drawings, it would be nice if someone can help me here.
    thanks in advance
    Regards jack
    I think it can help.
    BM-1 bomb.jpg
    Name talks that it`s BB-1, but I compared characteristics with BM-1 and I think it`s mistake in album. And on the next page BB-1 bomb with characteristics for BB-1 bomb.
    Attached Images Attached Images

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  7. #4
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    Thanks for the help guys, is there also some informatie about the detonator that is placed in this depth charge?

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  10. #6
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    Quote Originally Posted by jacleon1785 View Post
    Thanks for the help guys, is there also some informatie about the detonator that is placed in this depth charge?
    Ehhhh I wasn`t so fast and didn`t add information about fuze K-3. I don`t have infoamrtion about K-3 fuze, but I don`t think that K-3 the same as K-3M, as Dreamk wrote above.
    Probably he has evidence of it and also can translate instruction of K-3 from Russian on English
    Fuze K-3M has 4 tetryl blocks, 80 g each of them.

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  12. #7
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    Yes, the data on the manual refer to the K-3M. The K-3M replaced the K-3 in 1953, and its main difference with the K-3 was an increased depth range: 10m to 330m instead of 210m for the K-3. the K-3M was (and still is) used on BB-1, BPS, RBM and RGB-12 depth charges.On the first page of this manual, there is specific mention of the BB-1 depth charge. Both BB-1 and BM-1 used the same fuzes, but BM-1 may have been retired for active service before 1953.

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  14. #8
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    Quote Originally Posted by Dreamk View Post
    Yes, the data on the manual refer to the K-3M. The K-3M replaced the K-3 in 1953, and its main difference with the K-3 was an increased depth range: 10m to 330m instead of 210m for the K-3. the K-3M was (and still is) used on BB-1, BPS, RBM and RGB-12 depth charges.On the first page of this manual, there is specific mention of the BB-1 depth charge. Both BB-1 and BM-1 used the same fuzes, but BM-1 may have been retired for active service before 1953.
    I know for what and when started to use K-3 and when ended. And I have I have good cutways with depth charges. Maybe you have them, but why the didn`t add them to topic?
    Or you decided to translate for me from my native language infrotmation on English and explaine difference between fuzes?
    Last edited by Ivashkin; 20th November 2016 at 11:56 AM.

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  16. #9
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    ... more photos on the K3M Factorie┬┤s Cutaway.111.jpg112.jpg113.jpg114.jpg115.jpg116.jpg117.jpg118.jpg119.jpg
    Last edited by Zorro; 8th April 2017 at 08:23 PM.

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  18. #10
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    Does anyone have any idea what kind of cartridge/charge system was used in BMB-1 and BMB-2 launchers to fire the depth charge?

 

 

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