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P-15A Kolkata-class DDG : News & Discussions

Discussion in 'Indian Navy' started by prototype, Jun 2, 2010.

  1. kaku

    kaku Major Technical Analyst

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    @Gesseler: I want to ask a question. The BrahMos in Kolkata is cold launch or hot launch?
     
  2. Gessler

    Gessler Mod Staff Member MODERATOR

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    Hot launch. Cold launch is usually when you have multiple missiles in one VLS cell and have to launch one without incinerating the other, or when launching from underwater.
     
  3. kaku

    kaku Major Technical Analyst

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    So that means the Barak8 will be cold launch, because it will have multiple missile in single VLS?
     
  4. Gessler

    Gessler Mod Staff Member MODERATOR

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    No, only one missile per cell for all missiles on P-15A or any other IN warship in service or about to enter service within foreseeable future.
     
  5. Gessler

    Gessler Mod Staff Member MODERATOR

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    The MF-STAR radar of Kolkata-class destroyers has Gallium Nitride (GaN)-based Transmit/Receive elements. That means around 5x times greater transmitting power than usual Gallium Arsenide (GaAs)-based TR AESAs such as SAMPSON, which are a generation behind in terms of technology.

     
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  6. HMS Astute

    HMS Astute BANNED BANNED

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    SAMPSON can track up to thousand of objects the size of snooker ball travelling more than 3 times the speed of sound from 400km range where as Israel's EL/M-2248 MF-STAR can track objects the size of fighter jets from maximum range of 250km. Israel uses this radar for their small corvettes.
     
  7. kaku

    kaku Major Technical Analyst

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    Lol, how you know so much about MF-STAR and Sampson?
     
  8. Gessler

    Gessler Mod Staff Member MODERATOR

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    Erm...aren't you confusing SAMPSON with S1850M?

    Again?

    The heart of a radar are it's algorithms, processing systems and transceiver technology. The size, specs, power output of the radar can greatly vary according to the size/needs of the application, by adding or subtracting the number of T/R modules and increasing/decreasing the power supply. Like this -

    [​IMG]

    Don't you know this bit?

    Besides, the largest ships in the Israeli Navy are, well, corvettes. So undoubtedly they'd put they're best naval AESA radar on their corvettes, right? It's only elementary. Obviously the MFSTAR on the Israeli corvettes is not at the same level as the MFSTAR on the Kolkata-class destroyers.
     
    Last edited: Dec 15, 2014
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  9. HMS Astute

    HMS Astute BANNED BANNED

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    So Indian destroyers and carriers will be fitted with radar which Israel uses for their 1000 tons corvettes? Quite terrifying...
     
  10. Gessler

    Gessler Mod Staff Member MODERATOR

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    Not as terrifying as the Daring which uses the same Harpoon missiles as some 1400-ton corvette.
     
  11. HMS Astute

    HMS Astute BANNED BANNED

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    Funny!

    Because, no Type 45 class is fitted with Harpoon. They are purposely designed and purely classed as "AAW" destroyers to be used as parts of the CDG.
     
  12. Gessler

    Gessler Mod Staff Member MODERATOR

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    It is intended/designed to accommodate Harpoon.

    The same point stands for any other ship as well. A Type-26 GCS would also be fitted with the same Harpoon as a 1000-ton corvette.

    But it seems you missed the actual point which is clearly illustrated in the pic posted above. Obviously the MFSTAR on Saar-5 corvette
    is at a level lesser than one intended for destroyers. Just like how the AN/SPY-1 intended for frigates/corvettes is smaller than the
    AN/SPY-1 for destroyers.
     
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  13. kaku

    kaku Major Technical Analyst

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    Give me one answer, which British ship you want to pitted against INS Kolkata, which able to destroy it?
     
  14. kaku

    kaku Major Technical Analyst

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    Even see the size of MF-STAR on Kolkata, it definitely bigger one, and of high power output. SAMPSON is not even accepted in Horizon class.
     
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  15. HMS Astute

    HMS Astute BANNED BANNED

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    We did discuss this matter like a zillion times in the past, didn't we? As mention many times before, Type 45 are primarily designed for anti-aircraft and anti-missile warfare to escort the QE class carriers under the command of JRRF and RFTG.

    The UK had sought to procure a new class air-defence destroyers in collaboration with seven other NATO nations under theNFR-90 project, the project later collapsed due to varying requirements of the different countries involved. The UK then joined France and Italy in the Horizon CNGF programme; however, differing national requirements, workshare arguments and delays led to the UK withdrawing on 26 April 1999 and starting its own national project.

    The Type 45 destroyers are primarily designed for anti-air warfare with the capability to defend against sophisticated targets such asfighter aircraft, drones as well as highly maneuverable sea skimming anti-ship missiles travelling at supersonic speeds.[35] The Royal Navy describes the destroyers' mission as being "to shield the Fleet from air attack".[36]

    The Type 45 destroyer is equipped with the sophisticated Sea Viper (PAAMS) air-defence system utilizing the SAMPSON active electronically scanned array multi-function radar and the S1850M long-range radar. The PAAMS system is able to track over 2,000 targets and simultaneously control and coordinate multiple missiles in the air at once, allowing a large number of tracks to be intercepted and destroyed at any given time. This makes the PAAMS system particularly difficult to swamp during a saturation attack, even against supersonic targets.[37] The US Naval War College has suggested that the SAMPSON radar is capable of tracking 1,000 objects the size of a cricket ball travelling at three times the speed of sound (Mach 3), emphasising the system's capabilities against high performance stealth targets


    It's quite kindergarten and almost everyone interested in military knows that Harpoon won't even be in service anymore when the first GCS is commissioned. GCS will have 8 × 6-cell CAMM VLS canisters for a total of 48 anti air missiles, 3 × 8-cell strike-length Mk 41VLS for Tomahawk, ASROC, LRASM. In addition to that it will be armed with upgraded version of String Ray heavyweight torpedo system which are superior to torpedo carried by USN's latest Virginia class SSNs. GCS will also have a large hanger to accommodate a Chinook, or 2 helicopters, lift system to load/unload small boats for special forces and royal marines.
     

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