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Navy’s HDW & Kilo Class Submarines Undergoing Medium Refit With Life Certification MRO

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Navy’s HDW & Kilo Class Submarines Undergoing Medium Refit With Life Certification MRO



The Indian Navy is expected to receive the INS Shishumar submarine later this year after the completion of its Medium Refit with Life Certification (MRLC). The submarine is a Sub-Surface Killer (SSK) class vessel.

The refit was originally planned to be completed by 2021, but was delayed due to COVID-19. The ship is expected to be delivered to the Indian Navy in August 2023.

The Indian Navy is also planning to receive the INS Shankush submarine in 2026 after its MRLC. The Ministry of Defence (MoD) signed a contract with Mazagaon Docks Limited (MDL) for the INS Shankush’s MRLC at a cost of Rs 2,725 crore.

The MRLC of INS Shishumar, the first HDW-class submarine to undergo life extension, began on October 1, 2018 and was scheduled to be completed this August.

INS Shankush Is Undergoing Life Extension At MDL

The Defence Ministry had signed a ₹2,725-crore contract with Mazagon Dock Shipbuilders Limited (MDL), Mumbai, for the Medium Refit with Life Certification (MRLC) of the HDW-class submarine INS Shankush which will extend its life. This is the second HDW submarine that will undergo MRLC with upgrade of the first one, currently in progress. This is one of seven submarines that are being put through the process as the Navy struggles to maintain its depleting sub-surface fleet.

 In all, four Russian-origin Kilo-class submarines and three German-origin HDW-class submarines will undergo the MRLC process, Defence officials said.

“Shankush is a Sub-Surface Killer [SSK] class submarine to be re-fitted at MDL, Mumbai. Delivery of submarine post MRLC will be in 2026,” a Defence Ministry statement said. “After completion of MRLC, INS Shankush will be combat-ready and join the active fleet of the Indian Navy with upgraded combat capability.”

Further, the Ministry said that this project is an important step towards development of MDL as Maintenance, Repair & Overhaul (MRO) hub for supporting the industrial ecosystem of India. The project would involve more than 30 Micro, Small and Medium Enterprises (MSMEs) and lead to employment amounting to “1,200 man-days per day” for the project duration, it added.

The Defence Acquisition Council (DAC) had originally approved the MRLC program for six submarines – four Kilos and two HDWs – in August 2014 at a cost of around ₹1,000 crore per boat. So far, three Kilo submarines have undergone the process which extends their life by 10 to 15 years. These include Sindhukesari, Sindhukirti and Sindhuratna.

The first submarine to undergo MRLC was INS Sindhukesari, a Kilo-class submarine commissioned in 1989. INS Sindhukirti underwent refit and life extension at Hindustan Shipyard Limited, Visakhapatnam while INS Sindhuratna was sent to Russia.

However, earlier this year, INS Sindhuratna was stuck in Russia due to non-availability of transport following which the Navy looked for an option to sail it to Norway and then move it in a sea-lift vessel to Mumbai. However, after that too didn’t materialise the submarine reached Mumbai on its own after sailing for 97 days and almost 10,000 miles with two port calls in between in France and Spain. Finding transport to ship the next submarine to Russia is again an issue and the Navy is evaluating options, another defence official said.

The Navy has 16 conventional submarines in service – seven Kilo class, four HDW, and five French Scorpene-class submarines. Of these, the Kilo and HDW are ageing and the Navy has been forced to extend their life as an interim measure, as procurement of new submarines planned under Project-75I has been delayed. In fact, as INS Shishumar sails out of MDL in August, the deadline for submitting bids under P-75I also expires end-August with the joint bid by German submarine manufacturer (OEM) Thyssenkrupp Marine Systems (TKMS) and MDL likely to be the sole bid.





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INS Arihant’s Nuke-Capable K-4 Submarine-Launched Ballistic Missile ‘Ready To Roll’

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INS Arihant’s Nuke-Capable K-4 Submarine-Launched Ballistic Missile ‘Ready To Roll’


NEW DELHI: India tested its nuclear capable K-4 submarine-launched ballistic missile (SLBM), designed to have a strike range of 3,500 km, for the second time in six days on Friday. The missile test, as the one conducted on January 19, was undertaken from an undersea platform in the shape of a submersible pontoon off the coast of Andhra Pradesh according to a report by Rajat Pandit of TOI.

The solid-fuelled K-4 missile is being developed by DRDO to arm the country’s nuclear-powered submarines in the shape of INS Arihant and its under-development sister vessels. INS Arihant, which became fully operational in November 2018 to complete India’s nuclear triad, is currently armed with the much shorter K-15 missiles with a 750 km range.

“The K-4 is now virtually ready for its serial production to kick-off. The two tests have demonstrated its capability to emerge straight from underwater and undertake its parabolic trajectory,” said a source.

India has the land-based Agni missiles, with the over 5,000-km Agni-V inter-continental ballistic missile now in the process of being inducted, and fighter jets jury-rigged to deliver nuclear weapons. But INS Arihant gives the country’s deterrence posture much more credibility because nuclear-powered submarines armed with nuclear-tipped missiles are considered the most secure, survivable and potent platforms for retaliatory strikes.

Once the K-4 missiles are inducted, they will help India narrow the gap with countries like the US, Russia and China, which have over 5,000-km range SLBMs. The K-4 missiles are to be followed by the K-5 and K-6 missiles in the 5,000-6,000 km range class.

The 6,000-ton INS Arihant, which is propelled by an 83 MW pressurised light-water reactor at its core, in turn, is to be followed by INS Arighat, which was launched in 2017. The next generation of nuclear submarines, currently called S-4 and S-4*, will be much larger in size.





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After Upgradation, Sukhoi Su-30MKI Indigenisation To Reach 78%

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After Upgradation, Sukhoi Su-30MKI Indigenisation To Reach 78%


India has received clearance to upgrade 84 Sukhoi Su-30MKI fighter jets, which will result in 78% indigenization after the upgrade

In a significant step towards bolstering its military might with indigenously developed technology, India is poised to witness its Russian-origin Sukhoi Su-30MKI fighter jets evolve into a domestic platform. Speaking at a recent lecture.

The upgrade program is being led by Hindustan Aeronautics Limited (HAL) in partnership with the Indian Air Force and other partners. The upgrade is expected to cost US$7.5 billion.

The Defence Acquisition Council (DAC) granted Acceptance of Necessity (AoN) for the upgrade. The upgrade is part of India’s efforts to improve the capabilities of its primary fighter aircraft, it refers to as the “Super Sukhoi”.

This initiative is a part of a larger effort by the Indian Air Force to modernize its ageing fleet. Air Chief Marshal Chaudhari asserted the critical role of an offensive air force as demonstrated in current global conflicts and emphasized India’s move towards an indigenized arsenal. To this end, the IAF has been proactive, from upgrading its Mirage 2000 to enhancing its MiG-29 fleet.

In summary, the IAF’s commitment to updating their combat forces with the latest technology, including shifting to fifth-generation fighter jets, ensures operational preparedness and a strong deterrence capability. The gradual indigenization of its air fleet marks a pivotal shift in India’s defence landscape, reducing dependency on foreign imports and fostering technological sovereignty.





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Akash Weapon System Exports For The Armenian Armed Forces Gathers Pace

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Akash Weapon System Exports For The Armenian Armed Forces Gathers Pace


According to unconfirmed reports, Armenia is a top contender for an export order for Akash SAM system manufactured by Bharat Dynamics Limited (BDL).

While there is no official confirmation because of the sensitivities involved, documents suggest that the order for the same has already been placed the report further added.
There are nine countries, in turn, which have shown interest in the indigenously-developed Akash missile systems, which can intercept hostile aircraft, helicopters, drones and subsonic cruise missiles at a range of 25-km. They are Kenya, Philippines, Indonesia, UAE, Bahrain, Saudi Arabia, Egypt, Vietnam and Algeria reported TOI.

The Akash export version will also be slightly different from the one inducted by the armed forces. The 100-km range air-to-air Astra missiles, now entering production after successful trials from Sukhoi-30MKI fighters, also have “good export potential”, said sources.

Akash is a “tried, tested and successfully inducted systems”. Indian armed forces have ordered Akash systems worth Rs 24,000 crore over the years, and MoD inked a contract in Mar 2023 of over Rs 9,100 crores for improved Akash Weapon System

BDL is a government enterprise under the Ministry of Defence that was established in 1970. BDL manufactures surface-to-air missiles and delivers them to the Indian Army. BDL also offers its products for export.

Akash Weapon System

The AWS is a Short Range Surface to Air Missile (SRSAM) Air Defence System, indigenously designed and developed by Defence Research and Development Organisation (DRDO). In order to meet aerial threats, two additional Regiments of AWS with Upgradation are being procured for Indian Army for the Northern borders. Improved AWS has Seeker Technology, Reduced Foot Print, 360° Engagement Capability and improved environmental parameters.

The project will give a boost to the Indian missile manufacturing industry in particular and the indigenous defence manufacturing ecosystem as a whole. The project has overall indigenous content of 82% which will be increased to 93% by 2026-27.

The induction of the improved AWS into the Indian Army will increase India’s self-reliance in Short Range Missile capability. This project will play a role in boosting the overall economy by avoiding outgo of precious foreign exchange to other countries, increasing employment avenues in India and encouraging Indian MSMEs through components manufacturing. Around 60% of the project cost will be awarded to the private industry, including MSMEs, in maintaining the supply chain of the weapon system, thereby creating large scale of direct and indirect employment.





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