Indian MoD signs two contracts worth $335 million to upgrade Kalvari-class submarines with AIP and electronic HWT capabilities

Indian MoD news release

Ministry of Protection has actually authorized 2 agreements, worth approx. Rs 2,867 crore, for the building and construction of Air Independent Propulsion (AIP) Plug for DRDO-AIP system & its combination onboard Indian Submarines, and the combination of Digital Hefty Weight Torpedo (EHWT) onboard the Kalvari-Class submarines. Both the agreements were checked in the existence of Protection Assistant Shri Rajesh Kumar Singh in New Delhi on December 30, 2024.

The agreement for building and construction of AIP Plug and its combination was tattooed with Mazagon Dock Shipbuilders Limited, Mumbai worth around Rs 1,990 crore, while the agreement for combination of EHWT, being created by DRDO, was authorized with Naval Team, France at an approx. price of Rs 877 crore.

The AIP modern technology is being indigenously created by DRDO. The task referring to building and construction of AIP-Plug and its combination will certainly improve the endurance of traditional submarines and considerably add in the direction of the ‘Aatmanirbhar Bharat’ campaign. It would certainly create work of virtually 3 lakh guy days. The combination of EHWT will certainly be a joint initiative by Indian Navy, DRDO and Naval Team, France. It would considerably increase the firepower capacities of Kalvari Course submarines of the Indian Navy.

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Naval Information remarks

The AIP Components comprise the core of the gas cell-based AIP System, indigenously created by the Naval Materials Research Laboratory (NMRL) of DRDO with L&T as the prime market companion, an organization covering greater than a years. The Power Modules (EMs) consisting of Gas Cells generate the necessary power, in addition to onboard Hydrogen generation. The modern technology of this native AIP system is a special one that creates hydrogen as needed consequently anticipating the requirement for bring hydrogen onboard which is a significant security problem for a submarine.

On understanding and combination of these components in the submarines, India will certainly sign up with an elite club of a handful of countries that have actually indigenously created gas cell-based submarine AIP modern technology which is essential for enhancing the endurance of traditional submarines.

The production, combination, and manufacturing facility approval tests of the power components will certainly be embarked on in L&T’s AM Naik Heavy Design Facility at Surat.

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