TkMS Wins Indian AIP Submarine Contract
German firm ThyssenKrupp Marine Systems (TkMS) has secured the Indian Air Independent Propulsion (AIP) submarine contract, leaving its competitor, L&T in partnership with Spanish Navantia, out of the race. The Indian Navy rejected L&T’s proposal due to non-compliance with its requirements, particularly the need for a sea-proven AIP system. This decision narrows the competition to TkMS and its partner, Mazagon Dockyards Limited (MDL), for the construction of six diesel-electric submarines under India’s Project-75I.
Details of the Contract and Submarine Capabilities
The contract is expected to exceed Rs 70,000 crore (approximately $8.2 billion), significantly higher than the Indian defense ministry’s benchmark of Rs 43,000 crore. TkMS plans to customize its Type 214 submarine to meet the Indian Navy’s specifications. This submarine will feature advanced AIP technology, lithium-ion batteries, and enhanced stealth capabilities. The AIP system is crucial for extending the submarine’s underwater endurance, allowing it to operate without surfacing for extended periods.
The Indian Navy’s Project-75I aims to enhance its capabilities in various areas, including land-attack operations, anti-ship warfare, anti-submarine warfare, and intelligence, surveillance, and reconnaissance (ISR). TkMS’s submarine design is based on the well-established HDW Class 214, which is already in service with several navies worldwide. The design will be tailored to incorporate the latest technological advancements, ensuring it meets the specific needs of the Indian Navy.
In contrast, Navantia’s offering, the S-80-class submarine, utilizes a unique Bioethanol Stealth Technology (BEST) system, which generates hydrogen onboard. This allows for longer underwater missions while maintaining a low signature. However, the Indian Navy’s evaluation indicated that TkMS had a slight edge due to its operational AIP system, which is already proven in service. As the competition progresses, TkMS aims to establish India as a global shipbuilding hub by collaborating with MDL for future naval vessel production.