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Thread: Air-Independent Propulsion For Last Two Scorpene Submarines Ready: DRDO

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    Air-Independent Propulsion For Last Two Scorpene Submarines Ready: DRDO

    By Arming India Correspondent

    NEW DELHI, SEP.23, 2015: India's Defense Research and Development Organisation (DRDO) today claimed it has successfully developed the Air Independent Propulsion (AIP) technology, which gives conventionally-powered submarines longer endurance to stay underwater.

    This was announced by the DRDO chief Dr.S.Christopher at the annual DRDO Awards function presided over by Defense Minister Manohar Parrikar and the chiefs of the Indian Navy and the Air Force.

    Dr.Christopher said the indigenously-developed AIP technology has been demonstrated on a land-based prototype. Talks are on with the French DCNS to examine the possibility of incorporating the AIP plug in the 5th and 6th Scorpene submarines being constructed at Mumbai's Mazagon Docks Limited under a technology transfer.

    The technology demonstrator has been developed by the DRDO's Naval Material Research Laboratory (NMRL) at Ambernath in Maharashtra.

    If the technology works, it'll rule out import of AIP plugs. AIP is being looked upon as a significant game changer in conventional diesel-electrical submarine operations. AIP-fitted submarines can stay underwater much longer than those without it.

    Diesel-electrical submarines have the limitation of having to surface regularly to re-charge batteries. This makes these boats vulnerable to enemy attack.

    http://www.armingindia.com/Air-Indep...es%20Ready.htm

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    Re: Air-Independent Propulsion For Last Two Scorpene Submarines Ready: DRDO

    [MENTION=9415]Mohan Tiwari[/MENTION]

    Finally some good news coming from DRDO. I find it amusing that how well IN is performing with same organisation while IA and IAF always bickering.

    I have learnt that DRDO AIP has an endurance of almost 25 days, similar to french MESMA which claims more than 21 days and cost 50+ million dollars.
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    Re: Air-Independent Propulsion For Last Two Scorpene Submarines Ready: DRDO

    Quote Originally Posted by PoKeMon View Post
    [MENTION=9415]Mohan Tiwari[/MENTION]

    Finally some good news coming from DRDO. I find it amusing that how well IN is performing with same organisation while IA and IAF always bickering.

    I have learnt that DRDO AIP has an endurance of almost 25 days, similar to french MESMA which claims more than 21 days and cost 50+ million dollars.

    Its still in prototype stage. They have managed to demonstrate the protoype on land based device in submerged pond/lake type set up. Can they test the prototype inside sea(500 meter) under the vital characteristics of a submarine: outside & Inside Pressure,temperature, depth,

    DRDO/NRML AIP will then have to manufacture the real product. Testing,redesign and re manufacturing cycles will need atleast 3-5 years to mature. Indian navy will not clear this technology until NRML is able to meet the criteria.

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    Re: Air-Independent Propulsion For Last Two Scorpene Submarines Ready: DRDO

    Quote Originally Posted by Mohan Tiwari View Post
    Its still in prototype stage. They have managed to demonstrate the protoype on land based device in submerged pond/lake type set up. Can they test the prototype inside sea(500 meter) under the vital characteristics of a submarine: outside & Inside Pressure,temperature, depth,
    You dont call a prototype to be "ready to deploy". Moreover, land based facilities are replicated as close to real time environment i.e. temperature and pressure of real time submarine are taken care of. These are primary requisite considering the metallurgy and chemicals shows varied properties based on temperature and pressure.

    DRDO/NRML AIP will then have to manufacture the real product. Testing,redesign and re manufacturing cycles will need atleast 3-5 years to mature. Indian navy will not clear this technology until NRML is able to meet the criteria.
    This is not a prototype and we do have 4 more years before 5 and 6th submarine will be rolled out. All regressive testing will happen in between.
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