China’s Noisy Subs Get Busier — And Easier to Track

Discussion in 'China' started by JAISWAL, Dec 27, 2011.

  1. JAISWAL

    JAISWAL Senior Member Senior Member

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    The military’s latest secret assessment of China’s rapidly modernizing submarines has good news and bad news for the U.S. Navy. On one hand, the roughly 60 submarines in the People’s Liberation Army Navy (PLAN) fleet are spending more and more time on combat-ready patrols — signaling China’s increasing naval competence and growing seriousness about influencing the western Pacific Ocean.

    On the other hand, the flurry of undersea activity gives American forces more opportunities to tail and examine Chinese subs. And U.S. analysts discovered a silver lining in the gathering strategic storm clouds. Chinese submarines are a hell of a lot noisier than anyone expected. The sound you hear is the Pacific balance of power tipping in Washington’s favor.


    As recently as 2007, China’s diesel-powered subs and a handful of nuclear-propelled models managed just a few patrols per year, combined. Two years before that, none of Beijing’s undersea boats went on patrol. For years, the majority of PLAN submarines remained tied up at naval bases, sidelined by mechanical problems and a shortage of adequately trained crews.

    As long as the PLAN’s submarines were idle, the U.S. Navy’s spy planes, surveillance ships and snooping subs had few opportunities to assess China’s undersea capabilities — and, most importantly, how much noise the Chinese generate while submerged and moving. Navies can use passive sonars to track submarines by the sounds they make. The louder a vessel, the easier it is to detect. And destroy.

    With little information to go on, American intelligence officials had to guess. In cases like that, “you guess conservatively,” a respected U.S.-based naval analyst tells Danger Room on the condition of anonymity. The conservative estimates placed the latest PLAN subs roughly a decade behind the state-of-art for Russian submarines — and potentially 20 years behind U.S. undersea technology.

    Now Chinese subs are patrolling more frequently. “Within the last year or two the Chinese have begun to deploy diesel boats more frequently into places like the Philippines Sea,” the analyst reveals. More and better data is flowing in from U.S. forces. With that data, the Navy conducted a fresh assessment of PLAN submarines. The unnamed analyst attended a classified briefing based on the assessment.

    The assessment’s biggest surprise: Leaving aside the PLAN’s dozen imported Russian subs, new Chinese submarines can be detected at what’s known as the “first convergence zone,” a ring approximately 25 miles from an undersea vessel where outward-traveling sound waves pack close together.

    During the Cold War, the U.S. Navy would arrange its own submarines in lines where each boat was 25 miles from the next, forming a sort of net to catch Soviet subs. With the introduction of the latest generation of quiet Russian diesel subs in the 1990s, the Americans thought that convergence-zone detection was no longer possible. But the Navy’s just discovered that China’s homemade subs are even louder than 20-year-old Russian boats. “Apparently they [U.S. subs] are making first convergence zone detections and holding them,” the analyst reports.

    Assuming the Chinese stay with their current sub designs, American submarines should be capable of swiftly defeating Chinese boats in any potential future shooting war — helping clear the way for U.S. aircraft carriers to strike Chinese land targets. Combined with a slowdown in Chinese sub production, and the recent doubling of America’s submarine build-rate, the noise revelation could lead to a radical recalculation of the Pacific balance of power.

    The U.S. Navy had a comfortable technological lead over the PLAN even before the increased Chinese sub activity fueled the recent intelligence coup. Now that lead has gotten even wider. And noisier
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    China's Noisy Subs Get Busier -- And Easier to Track | Danger Room | Wired.com
     
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  3. Ray

    Ray The Chairman Defence Professionals Moderator

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    Great going for China!

    60 subs stealthily prowling the waters!
     
  4. ice berg

    ice berg Senior Member Senior Member

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    It is the typical Chinese ploy to disarm the adversary with mealy mouthed pious platitudes, when in a position of disadvantage.

    Just like disarming the world with such homilies as "Peaceful Rise", where China benefited to close the gap between the US and China and when slightly comfortable, it showed its hand in the South China Sea.

    In reality, China got super advanced subs waiting to ambush US subs. /Sarcasm ends.
     
  5. Armand2REP

    Armand2REP CHINI EXPERT Veteran Member

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    I have been saying for years... now you know.

    :laugh: :laugh: :laugh: :laugh: :laugh: :laugh:
     
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  6. AprilLyrics

    AprilLyrics Regular Member

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    [​IMG]

    Yuan Class:come and find me in the Ocean.i like this game ...>_<
     
  7. W.G.Ewald

    W.G.Ewald Defence Professionals/ DFI member of 2 Defence Professionals

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  8. Kunal Biswas

    Kunal Biswas Member of the Year 2011 Moderator

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    Fixed..








    Hmm..
     
    Last edited by a moderator: May 10, 2015
  9. Kunal Biswas

    Kunal Biswas Member of the Year 2011 Moderator

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    Its a good Submarine, Based on 877 Kilo class with Chinese upgrades..

    But its not as improved as Amurs of Russia, PLAN new nuke SUB may be challenge to US subs in pacific but these..
     
  10. ice berg

    ice berg Senior Member Senior Member

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    Guess you didnt read the whole sentence:
    "In reality, China got super advanced subs waiting to ambush US subs. /Sarcasm ends."

    And of course, we all know that Wired.com is the
    authoritative source on PLAN subs.:rofl:

    The military’s latest secret assessment of China’s

    rapidly modernizing submarines
    has good news and bad news for the U.S. Navy.

    The unnamed analyst attended a classified briefing based on the assessment.

    It was so secret that it got leaked to the media.

    :rolleyes:

    I dont know how far behind PLAN subs are compared to US subs. However I am sure that whoever wrote that piece of crap dont have an idea either.

    Have fun with the thread.:thumb:
     
    Last edited by a moderator: May 10, 2015
  11. Armand2REP

    Armand2REP CHINI EXPERT Veteran Member

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    It doesn't have to find you, it is so loud you can find it. :rofl:
     
  12. thecurryguy

    thecurryguy Tihar Jail Banned

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    Then where is your indigenous designed and crafted advanced AIP Subs? 'WILL' be launched Next year? I bet that's what the propaganda news media gonna say.
     
  13. Ray

    Ray The Chairman Defence Professionals Moderator

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    Good to see you using my words.

    Imitation is the best form of flattery! :namaste:
     
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  14. asianobserve

    asianobserve Elite Member Elite Member

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    This is the real deal in the Pacific. There may only be 2 examples but they are enough to neutralise threats in the Spratlys area: (Seawolf Class)

    [​IMG]
     
    Last edited by a moderator: May 10, 2015
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  15. Ray

    Ray The Chairman Defence Professionals Moderator

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    60 submarines operating in the ocean is a real big thing!

    It makes a lot of difference in diverting attention to have a a sizeable numbers to tag when it is hunting for a single quarry!
     
  16. debasree

    debasree Regular Member

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  17. LTE-TDD

    LTE-TDD Regular Member

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    So, India guys, have a good sleep tonight, no need to worry China. Just like someone said" he know this long time ago". Just relax, no threat from China at all. Why worry? Why spend billion bloody dollar to import weapon? American will cut their budget, India should follow. Put your money on your poor citizen is much better than on those advanced weapon. Go and advice Your great leader.
     
    Last edited: Dec 28, 2011
  18. Kunal Biswas

    Kunal Biswas Member of the Year 2011 Moderator

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    Fixed..


    .............................
     
  19. Ray

    Ray The Chairman Defence Professionals Moderator

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    Sorry, the world has listened to all these lullabies and have woken up to regret.

    Look after your poor citizens instead.

    And also stop stealing their land in places like Wukan and all that!

    And put your money where you Mouth is!
     
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  20. ice berg

    ice berg Senior Member Senior Member

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    Not everyone is as original as you, Ray. :rofl:

    I just think it was appropriate to use your words here. Credit to you, of course.
     
  21. ice berg

    ice berg Senior Member Senior Member

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    If every government look after their citizens first, then we will all have a jolly good society and a big happy family. :namaste:
     

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