The Project 75I-class submarine is a follow-on of the Project 75 Kalvari-class submarine for the Indian navy. Under this project, the Indian Navy intends to acquire 6 diesel-electric submarines, which will also feature advanced Air Independent Propulsion (AIP) systems to enable them to stay submerged for longer duration and substantially increase their operational range.
The six new submarines for the P-75I project is the next phase of the same submarine project and will be worth over $ 11.10 billion. According to the Indian Navy, the new submarines will differ from the earlier lot since the qualitative requirements have been altered. The new submarines will have air-independent propulsion (AIP) to enable sustenance under water for longer duration. In addition, there will be advanced detection range and combat management system besides better sensors for optimum performance. The weapon system would be a mix of torpedoes and missiles.
The six new submarines in P-75 I project will outline various critical parameters including the weight and design of the submarine. The Project 75I submarines are expected to be bigger than the 1800-ton Scorpene class being built for P-75 project. The AIP systems will enable greater underwater endurance and land-attack missiles. Besides, they will also incorporate stealth, land-attack capability and other technological advancements
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