Naval Group has enhanced its proposal to the Indian Navy with the Scorpéne Evolved, an advanced submarine variant designed to significantly outperform the current Kalvari-class fleet. The platform aims to serve as a bridge between Project-75 and Project-751, while capitalizing on India’s established submarine manufacturing infrastructure.
At the heart of the design is a shift to Lithium-Ion Battery (LiB) propulsion, replacing legacy lead-acid systems. This upgrade dramatically improves underwater endurance, enabling missions lasting up to 80 days without frequent snorkeling. Faster recharge capability reduces vulnerability during operations, enhancing survivability against modern anti-submarine warfare threats.
The LiB-based architecture eliminates the need for conventional AIP modules, reducing mechanical complexity and improving stealth by minimizing noise-generating components. The addition of a permanent magnet motor further enhances efficiency, lowers acoustic signatures, and ensures consistent power output across operational conditions.
A standout feature of the proposal is the potential integration of a Vertical Launch System (VLS) for BrahMos-NG, enabled through a specialized hull extension. This would introduce vertical supersonic strike capability to India’s Scorpéne fleet, a capability not currently fielded in other variants worldwide.
The Scorpéne Evolved is also aligned with India’s “Make in India” objectives, with over 60 percent indigenous content targeted, including locally produced battery systems through firms such as Exide. By leveraging the existing Mazagon Dock Limited production line, the design ensures industrial continuity while introducing advanced technologies. Naval Group is further reducing development risks by building on its recent submarine program for Indonesia, offering a mature yet forward-looking solution for India’s naval modernization.
