INS Kadmatt

INS Kadmatt
Shipname	Kadmatt
Class	Kamorta-class corvette
Pennant	P29
Builder	Garden Reach Shipbuilders & Engineers
Laid down	2010
Launched	2011
Commissioned	2016
Displacement	3,300 tonnes (full load)
Length	109 m
Beam	13.7 m
Draught	3.6 m
Propulsion	Combined diesel and diesel
Speed	25+ knots
Range	3,500 nmi at 18 kn
Complement	~200

INS Kadmatt

INS Kadmatt is a Kamorta-class corvette of the Indian Navy designed for anti-submarine warfare and littoral operations. Built by Garden Reach Shipbuilders & Engineers at Kolkata, she embodies indigenous Bharat naval design efforts and participates in fleet exercises, maritime security patrols, and humanitarian missions. The ship represents a synthesis of Indian shipbuilding, indigenous systems from Mazagon Dock Limited suppliers, and international components from firms such as BHEL, HAL, and foreign sensor manufacturers.

Design and development

The design roots trace to the Project 28 program overseen by the Directorate of Naval Design and driven by requirements issued by the Indian Navy and the Ministry of Defence (India). Naval architects incorporated lessons from Vikramaditya refit studies, Leander-class frigate conversions, and contemporary corvette projects like the Braunschweig-class corvette and K130 Braunschweig. The hull employs glass-reinforced plastic and advanced steel techniques influenced by research at the Defence Research and Development Organisation and Naval Materials Research Laboratory. Collaborative inputs came from Garden Reach Shipbuilders & Engineers, consultancy from Wärtsilä and Rolls-Royce Marine, and procurement coordination with Mazagon Dock Limited and Cochin Shipyard Limited procurement cells.

Specifications and capabilities

Kadmatt displaces approximately 3,300 tonnes at full load with a length near 109 metres, beam ~13.7 metres and draught ~3.6 metres, comparable to contemporary corvettes such as HMS Clyde and KRI Bung Tomo. Propulsion is a CODAD arrangement with diesel engines supplied via contractors including MTU Friedrichshafen and auxiliaries from Cummins and Bharbour. Maximum speed exceeds 25 knots and range is approximately 3,500 nautical miles at cruising speeds, enabling deployments similar to those of INS Kolkata and INS Shivalik. Survivability features align with standards used on Talwar-class frigate and Sovremenny-class destroyer retrofits, with signature reduction, compartmentalization paralleling Type 209 submarine survivability doctrine, and damage control systems informed by Indian Coast Guard and Royal Navy practices.

Operational history

After sea trials shared with representatives from the Indian Navy, Defence Research and Development Organisation and international classification societies like Lloyd's Register, Kadmatt joined the Eastern Naval Command following commissioning ceremonies attended by officials from the Ministry of Defence (India), Indian Navy leadership, and local dignitaries from Kolkata. Operational deployments have included anti-submarine patrols in the Indian Ocean, exercises with foreign navies including United States Navy task groups, bilateral exercises with the Royal Navy, French Navy, Japanese Maritime Self-Defense Force, and Royal Australian Navy, and participation in multinational drills such as Malabar Exercise and Varuna. Kadmatt also contributed to humanitarian assistance and disaster relief coordinated with National Disaster Management Authority (India) and regional partners during cyclone response and piracy deterrence missions informed by International Maritime Organization guidelines.

Armament and sensors

Armament integrates systems such as a 76mm main gun of the type supplied by OTO Melara, close-in weapon systems akin to AK-630 installations, and anti-ship missile cell provisions compatible with RBS-15, Exocet, and indigenous BrahMos integration pathways studied by DRDO teams. Anti-submarine warfare suites include torpedo launchers and rocket launchers influenced by configurations on Type 212 submarine ASW doctrine and ASW helicopters like the Westland Sea King and HAL Dhruv modifications. Sensors include hull-mounted sonar and variable depth sonar from international vendors comparable to systems on P-28A and ASW corvette deployments, long-range surveillance radars with technology similar to MR-760 Fregat and navigation radars akin to Kelvin Hughes models, and electronic warfare and decoy systems reflecting standards used on INS Vikramaditya and INS Vikrant.

Construction and commissioning

Kadmatt was laid down at Garden Reach Shipbuilders & Engineers in Kolkata during a construction program contemporaneous with other indigenous surface combatants like Kamorta and Kiltan. The build program involved subcontracts to firms including Bharat Electronics Limited, Hindustan Aeronautics Limited, Bharat Heavy Electricals Limited, Kalyani Group, Tata Group, and international suppliers such as Saab, Thales Group, and MBDA for select subsystems. Sea trials validated propulsion, weapons integration, and sensor suites in coordination with Centre for Innovation and Indigenisation, and commissioning occurred with pennant number P29, joining squadrons alongside INS Kiltan and contemporaries in the East Coast fleet.

Export and variants

The Kamorta-class design, embodied by Kadmatt, attracted interest from regional partners in the Indian Ocean Region and from navies assessing corvette platforms like the Royal Malaysian Navy, Sri Lanka Navy, and Bangladesh Navy. Variant proposals included enhanced air-defence fit similar to export modifications on Talwar-class frigate derivatives and reduced-displacement patrol variants compared to Grisha-class corvette or Visby-class corvette concepts. Industrial partnerships for export were discussed with Mazagon Dock Limited, Garden Reach Shipbuilders & Engineers, and international defence firms such as Rosoboronexport, Navantia, and Fincantieri to meet interoperability with systems used by United States Navy allies and ASEAN navies.

Category:Kamorta-class corvettes Category:Ships built in India Category:2011 ships