Commissioning of INS Imphal

December 26, 2023

On December 26, 2023, INS Imphal (Pennant D68), the third vessel of the Visakhapatnam class stealth-guided missile destroyers, is scheduled to be commissioned into the Indian Navy. As part of Project 15B, this class represents the latest in indigenous destroyer technology.

Evolution from Kolkata Class to Visakhapatnam Class

Between 2014 and 2016, the Indian Navy commissioned three Kolkata-class guided missile destroyers, advancing beyond the Delhi-class predecessors. The Kolkata class included INS Kolkata, INS Kochi, and INS Chennai. Subsequently, the Visakhapatnam class, under Project 15B, emerged as a technologically superior variant, with Mazagon Dock Shipbuilders Limited (MDSL) responsible for their construction.

Project 15B Timeline and Ship Names

The contract for Project 15B was signed in January 2011, leading to the commissioning of the lead ship, INS Visakhapatnam (D66), in November 2021, followed by INS Mormugao (D67) in December 2022. INS Imphal (D68) is the third ship, with INS Surat (D69) set to be the fourth. These ships are named after major cities—Visakhapatnam, Mormugao, Imphal, and Surat.

Milestones in INS Imphal’s Construction

The keel laying ceremony, marking the inception of construction, took place on May 17, 2017, with Yard 12706 designated as INS Imphal. The ship was launched into the water on April 20, 2019, and underwent successful sea trials, leading to its delivery on October 20. The commissioning on December 26 signifies its official entry into active service.

Technological Characteristics and Armament

The Visakhapatnam-class destroyers are 163 meters long, 17.4 meters wide, with a displacement of 7,400 tonnes. Featuring a ‘combined gas and gas’ (COGAG) configuration, they integrate four gas turbines, enabling a maximum speed of 30 knots and a range of 4,000 nautical miles. Operated by a crew of around 350, these ships prioritize superior ergonomics and habitability.

The class boasts multiple fire zones, advanced battle damage control systems, and a total atmospheric control system (TACS) providing protection against chemical, biological, and nuclear threats. Equipped with a state-of-the-art combat management system, these destroyers can assess threats and allocate resources effectively.

Weaponry and Strategic Significance

Armed with BrahMos surface-to-surface cruise missiles, vertically launched Barak-8 surface-to-air missiles, a 127 mm main gun, four AK-630 30mm guns, torpedo launchers, and anti-submarine rocket launchers, the Visakhapatnam class is a versatile offensive platform. It can operate multi-role helicopters and features advanced stealth capabilities, making it a key asset in network-centric warfare.

Strategic Role in Naval Operations

Destroyers, known for their high speed, maneuverability, and endurance, play a crucial role in naval formations. The Visakhapatnam class, with its advanced features and high indigenous content, stands out as one of the most advanced classes in the Indian Navy. Its capabilities extend to independent offensive operations and contribute significantly to network-centric warfare strategies.

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