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    Home»India»DRDO and Naval Group reach agreement on Indigenous AIP Modules on Scorpene Class Submarines
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    DRDO and Naval Group reach agreement on Indigenous AIP Modules on Scorpene Class Submarines

    By The Defence TimesJanuary 25, 2023No Comments3 Mins Read
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    DRDO and Naval Group reach agreement on Indigenous AIP Modules on Scorpene-Class Submarines
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    The DRDO and the Naval Group have reached an agreement to fit indigenous fuel cell-based Air Independent Propulsion, AIP modules on INS Kalvari.

    This is significant as it will boost the endurance of Scorpene-Class conventional submarines of the Indian Navy.

    The AIP Has been developed by DRDO’s Naval Material Research Laboratory (NMRL) and the land based prototype has been tested.

    “This new endeavour between the DRDO and Naval Group France will be a very significant step towards the detailed design certification of the energy module, which will be performed by the NMRL along with Indian industry and design of the platforms impacted by the integration of the indigenous AIP inside the Indian submarine by Naval Group,” the DRDO said in a statement.

    The Cabinet Committee on Security approved the project in March 2022, according to defence sources. Following the sanction and a Detailed Design Phase, the DRDO has started tendering for various equipment, officials said. The AIP is planned to be installed on the first Scorpene class submarine INS Kalvari when it goes for first refit in 2024, as reported by The Hindu earlier.

    DRDO AIP
    Fuel cell-based AIP system crosses important milestone of user specific tests. Credit: Ministry of Defence/Press Information Bureau/Government of India.

    An AIP module acts as a force multiplier as it enables conventional submarines to remain submerged for longer duration thereby increasing their endurance and reducing chances of detection.

    While there are different types of AIP systems being pursued internationally, the DRDO said earlier that the fuel cell-based AIP being developed is unique as the hydrogen is generated onboard and has merits in performance compared to other technologies. “This technology has been successfully developed by the NMRL with the support of Indian industry partners. The technology has now reached the stage of maturity for industrialisation,” the DRDO stated.

    Speaking at the event in Mumbai, Pierre Eric Pommellet, Chairman & CEO of Naval Group, said, “We are very proud to cooperate with Indian stakeholders to safely integrate the DRDO AIP in the Kalvari class submarines built by the MDL. This is a natural extension of strategic bilateral cooperation shared between France and India in the field of underwater defence and deterrence and in spirit of Naval Group’s continued commitment towards Aatmanirbhar Bharat policy.”

    Six Scorpene submarines are being built under Project-75 by the MDL under technology transfer from Naval Group of France under a $3.75 billion deal signed in October 2005. The project is about four years behind schedule. The first submarine INS Kalvari was commissioned in December 2017, the second one INS Khanderi in September 2019, third INS Karanj in March 2021 and the fourth INS Vela joined service in November 2021.

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