SOURCE: RAUNAK KUNDE / NEWS BEAT / IDRW.ORG
India’s defence capabilities are set to scale new heights with the development of the S5-class SSBN (Submersible Ship Ballistic Nuclear) submarines. With a proposed submerged displacement of 13,000 tons, the S5-class submarines will mark a significant advancement in India’s nuclear triad, ensuring a robust second-strike capability. These submarines are designed to carry a formidable arsenal of 16 ballistic missile tubes, equipped with K-5 and K-6 MIRV (Multiple Independently Targetable Reentry Vehicle) SLBMs, with ranges of 5,000 to 8,000 kilometres.
Initially, the S5-class SSBN was planned to feature 12 missile tubes, with six on each side of the submarine. However, the design has been revised to accommodate eight tubes on each side, increasing the submarine’s capacity to carry 16 long-range ballistic missiles. This significant enhancement underlines India’s commitment to maintaining a credible and potent deterrence in a rapidly evolving strategic environment.
India’s Ministry of Defence (MoD) has approved plans to manufacture two S5-class submarines simultaneously, reflecting the urgency and importance of the program. Over time, the fleet size is expected to grow to six units, with production planned in three phases.
The S5-class SSBNs will be powered by a 190MW Pressurized Water Reactor (PWR) developed by the Bhabha Atomic Research Centre (BARC). While the same reactor will also be utilized for the Project-77 SSN (Nuclear Attack Submarine) program, it will be optimized differently for the two classes. For the S5-class SSBN, the reactor will prioritize endurance and stealth for strategic patrols, rather than the rapid acceleration required for offensive SSN operations.
The S5-class SSBNs are designed to bolster India’s nuclear deterrence by providing a survivable and stealthy platform capable of delivering retaliatory strikes. The integration of MIRV-capable SLBMs ensures that each missile can target multiple locations, significantly enhancing the effectiveness of India’s nuclear arsenal. With a range of up to 8,000 km, these SLBMs will extend India’s strategic reach, providing the capability to deter adversaries far beyond its immediate neighbourhood.
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