Vikrant is the first aircraft carrier to be designed by the Warship Design Bureau (formerly Directorate of Naval Design) of the Indian Navy and the first warship to be built by Cochin Shipyard. Its construction involved participation of a large number of private and public firms. The
Defence Metallurgical Research Laboratory (DMRL) and
Steel Authority of India Limited (SAIL) created facilities to manufacture the
DMR 249 grade steel in India. Reportedly, of three types of special steel for the hull, flight deck and floor compartments were manufactured at the
Bokaro Steel Plant (
Jharkhand),
Bhilai Steel Plant (
Chhattisgarh) and
Rourkela Steel Plant (
Odisha). Due to this,
Vikrant is the first ship of the Indian Navy to be built completely using domestically produced steel. The main switch board, steering gear and water tight hatches have been manufactured by
Larsen & Toubro in
Mumbai and
Talegaon; high-capacity
air conditioning and
refrigeration systems have been manufactured in
Kirloskar Group's plants in
Pune; most pumps have been supplied by Best and Crompton;
Bharat Heavy Electricals (BHEL) supplied the Integrated Platform Management System (IPMS), which is being installed by
Avio, an
Italian company; the gear box was supplied by
Elecon Engineering; and the electrical cables are being supplied by Nicco Industries.
Fincantieri provided consultancy for the propulsion package while Russia's Nevskoye Design Bureau designed the aviation complex. The
keel for
Vikrant was laid by Defence Minister
A.K. Antony at the Cochin Shipyard on 28 February 2009. The ship uses modular construction, with 874 blocks joined for the
hull. By the time the keel was laid, 423 blocks weighing over 8,000 tons had been completed. In August 2011, the
Defence Ministry reported to the
Lok Sabha that 75% of the construction work for the hull of the lead carrier had been completed and the carrier would be first launched in December 2011, following which further works would be completed until commissioning. On 29 December 2011, the completed hull of the carrier was first floated out of its dry dock at CSL, with its displacement at over .Shortly before launch on 21st March 2013, the
Indian Coast Guard vessel
ICGS Abheek, which was in advanced stages of fitting out in the same drydock but ahead of
Vikrant was slowly winched over the ship on specially designed cradles before being launched by itself into the water by dock technicians.
Launch In July 2013, Defence Minister Antony announced that
Vikrant would be launched on 12 August at the Cochin Shipyard. The ship was launched by his wife, Elizabeth Antony, on 12 August 2013. According to Admiral
Robin K. Dhowan, about 83% of the fabrication work and 75% of the construction work had been completed at the time of launching. He said that 90% of the body work of the aircraft carrier had been designed and made in India, about 50% of the propulsion system, and about 30% of its weaponry. He also said that the ship would be equipped with a long range missile system with multi-function radar and a
close-in weapon system (CIWS). After the launch,
Vikrant would be re-docked for the second phase of construction, in which the ship would be fitted with various weapons and sensors, and the propulsion system, flight deck and the aircraft complex would be integrated. By October 2015, the construction of the hull was close to 98 percent complete, with flight deck construction underway. The installation of machinery, piping and the propeller shafts was in progress by January 2016; it was reported, however, that there were delays in the delivery of equipment from Russia for the carrier's aviation complex. By May 2017, the carrier's fitting-out was 62% complete, with trials of the auxiliary systems scheduled by late 2017. In February 2020, all major structural and outfitting work was declared complete.
Harbour and sea trials On 31 October 2019, Cochin Shipyard received a contract for the Phase-III of the project. This contract included funds for the harbour trials, sea trials and support for the ship during its weapons and aviation trials after its delivery. In December 2019, it was reported the engines had been switched on. By September 2020,
Vikrant had completed harbour trials while the basin trials started from October 2020 to check propulsion, electric transmission and shafting systems. On 30 November 2020, the basin trials were completed, paving the way for sea trials, the final phase of the IAC-I project. As of 4 December 2020, the aircraft carrier was to be inducted in 2022–23. approaches
Vikrant while on sea trials. In April 2021, it was reported that work had begun to integrate
Barak 8 (or LR-SAM) on board
Vikrant. On 15 June 2021,
Vikrant was moved to the Ernakulam Wharf in
Kochi,
Kerala. On 4 August 2021, sea trials finally began. The first phase of the sea trials was successfully completed on 8 August 2021. The second phase of the trials was conducted on 24 October 2021, followed by the third phase from 9–17 January 2022, both of which were completed successfully. On 10 July, the fourth and final phase of the sea trials was successfully completed. This phase involved integrated trials of most of the equipment and systems aboard
Vikrant, including portions of the Aviation Facilities Complex. On 26 May 2023 Indian built
Mikoyan MiG-29K successfully landed on its deck during night sea trials lauding praise from defense ministry for
Navy's dependence on
Atmanirbhar Bharat.
Completion and commissioning commissioned INS
Vikrant on 2 September 2022 in
Kochi,
Kerala. INS
Vikrant was delivered to the Indian Navy on 28 July 2022.
Prime Minister Narendra Modi commissioned INS
Vikrant on 2 September 2022 in a grand ceremony at
Cochin Shipyard. Flight trials of its aircraft complement are expected to be completed by mid-2023, after which the ship will be fully operational.
Homeport In March 2020, it was revealed that after its commissioning, the Navy wants to lease a 260 m berth at
Larsen & Toubro's shipyard in
Kattupalli near
Chennai between 2022 and 2030 to deploy INS
Vikrant. This was an interim solution until the planned naval base
INS Varsha at
Rambilli near
Vishakhapatnam would by ready. Again, it was reported in 2021 that INS
Vikrant's home base will be changed from Karwar to
Visakhapatnam after the development of certain infrastructures in the Eastern Seaboard. sea trials to commence in 2013, and to be commissioned in 2016. However, the project experienced some delays such as delay in the delivery of main gearboxes, aviation equipments etc., and cost overrun. The supplier of gearboxes, Elecon, attributed it to technical complexities due to the length of the propulsion shafts. Part of the blame for the delay in delivery of
Vikrant was attributed to the delay in the supply of aviation equipment from Russia. In response to a question in the
Rajya Sabha,
Sripad Naik, the
Minister of State for Defence, stated: "Ship's targeted delivery was affected due to delay in supply of aviation equipment from Russia". Later due to the
COVID-19 pandemic, sea trials of the carrier were further postponed to late 2020, but eventually began in August 2021. The carrier was commissioned on 2 September 2022. == Service history ==