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FLOTTES ET PLATES-FORMES NAVALES 4

INDE 4

KAMORTA 4

DCNS 1

PROJET 28 1

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Des réducteurs DCNS pour la nouvelle corvette anti-sous-marine indienne

From www.lemarin.fr - September 3, 2014 4:13 PM

La marine indienne a mis en service, le samedi 23 août, la corvette de lutte anti-sous-marine Kamorta, présentée comme le premier navire militaire de ce type intégralement construit en Inde, ou presque. 90% des composants présents à bord sont d’origine locale. Pour les réducteurs, il a cependant été fait appel à l'expertise de DCNS.

La corvette Kamorta affiche un déplacement de 3 400 tonnes à pleine charge pour une longueur de 109 mètres. Elle a été construite par les chantiers Garden Reach Shipbuilders and Engineers (GRSE) de Calcutta. C’est le premier navire indien dont la coque est construite avec un acier à haute résistance fourni par l’industrie locale. Les superstructures intègrent des matériaux composites pour diminuer la signature radar. Trois autres corvettes du même type (Projet 28) doivent être livrées d’ici 2017.

La propulsion de type Codad (combined diesel to diesel) associe quatre moteurs diesel Pieltstick construits sous licence à des réducteurs montés sur berceaux fournis par DCNS, qui sont couplés aux deux lignes d’arbre. Les quatre premiers berceaux réducteurs destinés aux corvettes indiennes ont été fabriqués par DCNS sur le site d’Indret, les quatre suivants étant réalisés par son partenaire indien Walchandnagar Industries Ltd dans le cadre d’un transfert de technologie. Cette solution technique est réputée très silencieuse.

Cependant, à l’image du destroyer Kolkata récemment mis en service, la corvette Kamorta est livrée sans certains équipements critiques. Ainsi, elle n’a pas encore reçu son sonar actif remorqué, toujours en cours de développement. Elle devra uniquement compter, au moins dans un premier temps, sur son sonar de coque, moins performant.

Autre handicap de taille pour un navire à vocation anti-sous-marine, elle n'embarque pas l'hélicoptère Sea King prévu, faute de machines en nombre suffisant dans la Marine indienne. Enfin, elle ne dispose pas non plus de son système de missiles anti-aériens Barak, développé en commun avec l'industrie israélienne mais pas encore livré.

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Grande semaine pour la Marine indienne : après le destroyer Kolkata, voici la livraison de la corvette ASM Kamorta

From www.livefistdefence.com - July 12, 2014 3:01 PM

Kamorta, the lead ship of the four Project 28 anti-submarine (ASW) corvettes being built by India's state-owned Garden Reach Shipbuilders & Engineers (GRSE), named after the erstwhile Petya Class ship from USSR ex-Kamorta (21 Nov 1968 - 31 Oct 1991), the new Kamorta has been indigenously conceived and designed. With a unique hull-form, stealth features, state-of-the-art weaponry and integrated systems, Kamorta is designed to operate in the multiple threat environment.

The ship’s keel was laid on 20 Nov 2006 and the ship was launched on 19 April 2010. The ship is 110 m long and displaces about 3,400 T. With four diesel engines in CODAD (combined diesel & diesel) propulsion she has a max speed of about 25 knots. She is capable of carrying an integral ASW helicopter. Her manning comprises of 13 officers and 176 sailors. The formidable array of weapons include heavy weight torpedoes, ASW rockets, 76 mm Medium Range gun and two guns as Close-in-Weapon System (CIWS) with dedicated fire control systems, chaff systems and the PDMS which would be installed in due course. Her sensors include the most advanced bow mounted sonar, advanced ESM system and direction finder, an air surveillance radar with capability to detect target exceeding 200 Km and an active towed array system which would be installed in due course.

The ship is being delivered to the Indian Navy on 12 July 2014. Kamorta would be commissioned next month at Visakhapatnam and would form part of the Eastern Fleet under the Eastern Naval Command.

Cost of four of these class of ships is Rs. 7852.39 crore. These ships have been designed the Indian Navy’s in-house Design Organisation i.e. Directorate of Naval Design (DND). Stealth features include X-form Hull for low RCS, Raft Mounted Gear Box for low under water noise and Infra Red Signature Suppression Device for low heat radiations. Usage of DMR 249A steel for construction which has been developed indigenously by Defence Material Research Laboratory and manufactured in-house Steel Authority of India Ltd (SAIL). Use of Carbon Fibre Reinforced Plastic (CFRP) superstructure integrated with the steel hull in the third and fourth ships of the class. First time installation of revolutionary foldable hanger door and Railless Helo Traversing System and Telescopic Boat Davit.

Highlights of the design includes Low Radar Cross Section (RCS) signature through full beam superstructure, inclined ship sides and reduced Infra red (IR) signature by use of “Infrared Suppression System (IRSS) device’ for cooling the engine and diesel alternator exhausts, developed indigenously by Naval Scientific and technical Laboratory (NSTL). It has ‘Combination of Diesel and Diesel (CODAD)’ propulsion system with the two diesel engine along with one gear box on each shaft. The ship is fitted with indigenous state-of-the-art weapons and sensors, including a Medium Range Gun (form M/s Bharat Heavy Electrical Ltd), Torpedo Tube Launchers as well as Rocket Launchers (form M/s Larsen & Tubro), Close-In Weapon System (form M/s Gun and Shell Factory) and Chaff System (from M/s Machine Tool Prototype Factory). Ship is equipped with a Bow mounted Sonar and are capable of deploying a Seaking 42B helicopter, adding considerable punch to the ship’s anti-submarine capability.

Modular Accommodation, Gallery and Vacuum Sanitation System for high standard of Crew Habitability. Total Atmospheric control system for effective heat ventilation and air conditioning. Integrated Platform Management System (IPMS) which include Integrated Bridge System as well as Battle Damage System for effective modern warfare.

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L'INS Kamorta, 1ère corvette spécialisée dans la lutte ASM construite en Inde, a été admise au service actif

From indiatoday.intoday.in - August 23, 2014 7:51 AM

India's first indigenously built submarine hunting ship, INS Kamorta was handed over to the Navy by Garden Reach Shipbuilders and Engineers Ltd. (GRSE) here Saturday, a defence statement said.

The super-sophisticated frontline warship will be formally handed over by GRSE chairman and managing director, Rear Admiral (retd) A.K. Verma to the Indian Navy at a brief ceremony at GRSE's fitting-out jetty.

INS Kamorta, first in its class of four ASW corvettes being built by GRSE for the Indian Navy, is the first Indian naval warship ever built in the country with almost 90 percent of indigenous content, a defence ministry release said.

It is also the first naval warship built in the country with indigenously developed special grade high-tensile (DMR249A) steel produced by Steel Authority of India. The hull of the ship encompasses the bulk of sensors and weapon systems that are also indigenously manufactured by various Indian industries.

The ASW corvette brings to fruition a significant project in India's pursuit for self-reliance in indigenous warship building, bringing closer home the navy's quest to be a "Builder's Navy" as well as a true "Blue-water Navy" with ships and submarines designed and built within the country.

Designed by Directorate of Naval Design (DND), the successful construction of ASW corvettes with advanced stealth features also bears testimony to GRSE's growing capabilities in building state-of-the-art naval combatants comparable with the best in the world, the release added.

Patrick H. 's insight:

Elle avait été livrée à la Marine indienne le 12 juillet dernier :

http://www.scoop.it/t/newsletter-navale/p/4024522621/2014/07/12/grande-semaine-pour-la-marine-indienne-apres-le-destroyer-kolkata-voici-la-livraison-de-la-corvette-asm-kamorta

La fiche de caractéristiques de cette classe de corvettes :

http://www.naval-technology.com/projects/kamorta-class-asw-corvettes/

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Inde : La corvette ASM INS Kamorta conçue et construite localement est prête à être admise au service actif

From www.firstpost.com - June 25, 2014 2:46 AM

Kolkata: India's first indigenously-built anti submarine warfare corvette INS Kamorta is ready to be commissioned into the Indian Navy next month, defence officials said in Kolkata today.

Built by the Garden Reach Shipbuilders & Engineers Ltd (GRSE), Kolkata, it will be the first warship armed with an indigenous rocket launcher for anti submarine warfare, they said.

The corvette is readying to sail out from GRSE's fitting-out jetty in Kolkata to join the Navy's eastern fleet at Vishakhapatnam in July, officials said.

The sophisticated front line warship with stealth features will also be the first warship armed with the new trainable chaff launcher - Kavach.

With an approximate displacement of 3,400 tonnes, it can achieve a maximum speed of 25 knots. It is powered by four indigenously designed 3888 KW diesel engines at 1050 rpm and can cover nearly 3,500 nautical miles at 18 knots.

The overall length of the ship is 109 meters and is nearly 13 metres wide at its maximum bulge.

With about 90 percent of the ship being indigenous, it is also capable of deploying a helicopter, adding considerable punch to the ship's anti-submarine capability.

It is also the first naval ship fitted with bow mounted 'Sonar' (sound navigation and ranging) for enhanced underwater surveillance. Integration of indigenous surveillance radar (Revathi) for surface and air surveillance is another first on any Indian warship.

Each ship will be manned by 14 officers and 150 sailors.

With reverse osmosis plant for fresh water generation, sewage treatment plant with vacuum toilet facilities totally compliant with International Maritime Organisation regulations, the warship measures up to all stringent regulatory needs to operate across oceans of the world.

The sturdy warship is the first in its class of four ASW corvettes being built for the Indian Navy.

Named after islands in Andaman & Nicobar and Lakshwadeep archipelago, ASW corvettes Kadmatt, Kiltan and Kavaratti are to follow suit progressively.

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