Suivre ce blog
Administration Créer mon blog
13 avril 2015 1 13 /04 /avril /2015 16:50
Rear Admiral Anders Grenstad photo sverigesradio.se

Rear Admiral Anders Grenstad photo sverigesradio.se

 

13 Apr 2015 thelocal.se

 

UPDATED: A suspected submarine spotted in the Stockholm archipelago a week after Sweden's extensive hunt for Russian underwater vessels last autumn was only a civilian boat, Sweden's Armed Forces have now said. But they remain convinced that the first sighting was a small foreign sub.

 

 

On October 31st 2014, retired naval officer Sven Olof Kviman snapped a picture of what looked like a 20-30 metre long, black submarine in waters just outside Lidingö in Stockholm. The incident has remained unconfirmed, but has been classed by the military as a “potential” submarine.

But Rear Admiral Anders Grenstad has now told Swedish newspapers that the Armed Forces reported to the Swedish government last Wednesday that the suspected underwater vessel was in fact only a civilian “working boat”.

 

Read more

Partager cet article

1 avril 2015 3 01 /04 /avril /2015 11:35
JDS Izumo DDH183 helicopter carrier - photo Japan MoD

JDS Izumo DDH183 helicopter carrier - photo Japan MoD

 

March 28, 2015 By Franz-Stefan Gady – The Diplomat

 

Japan now has all the building blocks to field a powerful carrier strike group.

 

This week, Japan’s Maritime Self-Defense Force commissioned the JDS Izumo (DDH-183), a helicopter destroyer, in a ceremony at the JMSDF Yokosuka naval base in Yokohama.

The new carrier’s principal task, although touted as a multi-purpose vessel, will be anti-submarine warfare and command-and-control operations to protect Japanese territories in the East China Sea.

“This heightens our ability to deal with Chinese submarines that have become more difficult to detect,” one Japanese official noted. According to other  JMSDF officials, the ship will also be used for humanitarian aid and disaster relief (HADR) operations.

With a 27,000 tons displacement when fully loaded (some sources state 24,000 tons), the 248 m-long  Izumo-class helicopter carrier is the largest surface combatant in the Japanese fleet to date, and substantially bigger than its predecessor, the Hyūga-class, which yielded 19,000 tons.

The ship will have a crew of around 470 and also can carry up to 400 JSDF troops.  IHS Jane’s Defence Weekly notes about the vessels’s specifications:

Izumo is equipped with an OQQ-22 bow-mounted sonar for submarine prosecution while air defence is provided by two Raytheon RIM-116 Rolling Airframe Missile SeaRAM launchers and two Phalanx close-in weapon systems. (…)

[I]t can embark Sikorsky/Mitsubishi SH-60K Seahawk anti-submarine warfare helicopters and the Izumo class’s air wing will also include two airborne mine countermeasures versions of the Kawasaki Heavy Industries/AgustaWestland MCH-101 helicopter – JMSDF officials claim that the ship will be deployed mainly for border surveillance and humanitarian assistance and disaster relief missions. (..) Officials in Tokyo have also suggested it will embark Bell-Boeing V-22 Osprey tilt-rotor aircraft.

The ship is designed to accommodate up to 14 helicopters (seven Mitsubishi-built SH-60k ASW helicopters and seven Agusta Westland MCM-101 mine countermeasure helicopters), five of which can simultaneously take off and land, given the Izumo’s large flight deck and five landing spots.

USNI News notes that the Izumo could also accommodate fixed wing aircraft – perhaps up to 27 total:

The ship would also be able to field American MV-22s and potentially the short takeoff and vertical landing variant of the Lockheed Martin F-35 Lighting II Joint Strike Fighter (JSF), however Japanese defense officials have repeatedly said they have no plans to use the JSF on the Izumo.

The new carrier is slightly larger than other light carriers, such as the Italian Cavour and the Spanish Principe de Asturias – both of which carry fixed wing aircraft. Total costs of the ship are billed at about 120 billion yen ($1 billion), although they may be as high as $ 1.5 billion.

The naming of the vessel caused some controversy. “[T]he name Izumo itself has historical baggage: the original Izumo, an armored cruiser that participated in the Battle of Tsushima, was purchased with reparations from the first Sino-Japanese War. There is little doubt all parties, particularly the Chinese, are aware of the lineage,” one analyst noted.

The new carrier joined the MSDF’s Escort Flotilla 1 based in Yokosuka, Kanagawa Prefecture. The JS Izumo’s sister ship, also constructed by the IHI Marine United Yokohama Shipyard (which already built the Hyūga-class helicopter destroyers), will be launched this August and is scheduled to be commissioned in March 2017.

Partager cet article

31 mars 2015 2 31 /03 /mars /2015 07:40
Dans l’Arctique, une ancienne base de l’Otan aujourd’hui mouillage russe

Photo prise de 1er décembre 2008 de la base sous-marine d'Olavsvern vendue quelques années auparavant à la Russie (Photo Bjornbakk, Jan-Morten. AFP)

 

31 mars 2015 Liberation.fr (AFP)

 

D’anciens hauts gradés norvégiens pestent contre l’erreur qu’a commise le pays en cédant une base sous-marine secrète dans l’Arctique, d’autant plus qu’elle accueille aujourd’hui... des navires russes.

 

Terrain de chasse des sous-marins soviétiques et de l’Otan au temps de la guerre froide, les eaux de l’Arctique ont regagné une importance stratégique à l’aune des dernières tensions entre la Russie et l’Alliance atlantique, jamais vues depuis la chute de l’Union soviétique.

 

Faute d’avoir anticipé la remontée en puissance du géant russe qui déploie en mer de Barents son imposante flotte du Nord, la Norvège a décidé en 2008, dans un contexte régional alors apaisé, de se séparer de la base d’Olavsvern, près du port de Tromsø.

 

En renonçant à cet énorme complexe logistique logé dans les entrailles d’une montagne protectrice, le pays scandinave a privé ses sous-marins d’un point d’appui crucial dans le Grand Nord, les obligeant à parcourir des centaines de milles supplémentaires pour rallier ce qui constitue leur principal théâtre d’opérations.

 

Sept ans plus tard, la décision du pouvoir politique nourrit toujours les rancoeurs, notamment parmi les officiers supérieurs à la retraite, plus prompts à s’exprimer que leurs collègues d’active.

 

«On a vendu la seule base digne de ce nom qu’on avait là-haut. C’est de la pure folie», fulmine l’ex-vice-amiral Einar Skorgen, ancien commandant de la Marine dans le Nord de la Norvège.

 

«Nous sommes les seuls avec la Russie à opérer en permanence en mer de Barents, où nous avons une frontière commune. Il est évident que notre Marine doit y être stationnée, y compris nos sous-marins», déplore-t-il. «Si les bateaux ne sont pas là où on en a besoin, autant les mettre au rancart».

 

La potion est d’autant plus amère qu’après avoir été mise en vente sur un site d’annonces en ligne sans trouver acquéreur, la base qui a coûté près de 4 milliards de couronnes (environ 500 millions d’euros) financés par l’Otan a été bradée moins de 40 millions à un homme d’affaires.

 

Ce dernier loue maintenant les quais à des navires russes de recherche ou de collecte de données sismiques. Trois d’entre eux ont ainsi passé l’hiver dans ce qui était il y a peu un site jalousement gardé.

 

«Il n’y a plus rien de secret autour de cette base», se défend le nouveau propriétaire, Gunnar Wilhelmsen. «Plus depuis que l’armée et l’Otan ont convenu de la mettre en vente sur internet, photographiée dans ses moindres recoins», explique-t-il à l’AFP.

 

- 'Gaffe' historique -

 

Le hic, c’est que l’on prête aux navires russes des capacités utiles aux militaires comme, par exemple, l’étude des fonds marins ou du littoral avec, au besoin, des sous-marins de poche.

 

«La Russie est un pays où l’État a un droit de regard dans toutes les activités commerciales ou semi-publiques. C’est clair: il y a peu de gens qui savent ce qui se passe à partir de ces bateaux», souligne l’ex-vice-amiral Jan Reksten, ancien numéro deux de l’armée norvégienne.

 

Olavsvern, «c’est une double perte pour notre pays: la défense norvégienne a perdu une base importante et maintenant ce sont des bâtiments russes qui viennent y mouiller», regrette-t-il.

 

Ironie du sort, la décision de fermer a été prise par le gouvernement de Jens Stoltenberg, devenu depuis secrétaire général de l’Otan, un poste d’où il exhorte aujourd’hui les pays membres de l’Alliance à ne pas baisser la garde.

 

Pour Kjell-Ola Kleiven, blogueur sur les questions de sécurité, l’épisode est «la plus grosse gaffe de l’Histoire récente» dans un pays riche en pétrole, qui dispose du plus gros fonds souverain de la planète.

 

«Avec 7.000 milliards de couronnes de côté, on aurait cru que la nation norvégienne avait les moyens et assez de jugeote pour conserver la propriété de la base d’Olavsvern, mais la vente qui n’a rapporté que 35 millions de couronnes pourrait être beaucoup plus qu’un fiasco financier», a-t-il écrit.

 

La majorité politique en Norvège a beau avoir changé, l’actuel gouvernement reste sourd aux protestations des militaires.

 

«Il n’est pas question de réinstaller des activités militaires à Olavsvern», a affirmé Audun Halvorsen, conseiller politique au ministère de la Défense, dans un courriel à l’AFP. «Le propriétaire du site en dispose comme il l’entend et la défense n’a pas autorité à imposer des restrictions ni mandat pour contrôler les navires civils qui y mouillent».

Partager cet article

26 mars 2015 4 26 /03 /mars /2015 21:55
Les 5ème et 6ème SNA de type Suffren s’appelleront Rubis et Casabianca

 

26/03/2015 Sources : Marine nationale

 

Le 25 mars 2015, sur proposition de l’amiral Bernard Rogel, chef d’état-major de la Marine, monsieur Jean-Yves Le Drian, ministre de la Défense a décidé de nommer Rubis et Casabianca les 5ème et 6ème SNA de type Suffren.

 

Ce choix permet ainsi de perpétuer le souvenir d’unités qui se sont historiquement illustrées au cours de notre histoire récente, et dont la mémoire revêt une importance particulière pour les marins en général et les sous-mariniers en particulier.

 

Le Casabianca restera dans l'histoire pour son évasion du port de Toulon sous les ordres du commandant l'Herminier, lors de l'attaque allemande de 1942, et pour ses nombreuses missions aux côtés des alliés.

 

Le Rubis, quant à lui, a eu le plus long palmarès des Forces Navales Françaises Libres (FNFL). Cité 3 fois, il fut le premier bâtiment de combat nommé Compagnon de la Libération et à être décoré de la Croix de Guerre 39-45.

 

Les futurs SNA constitueront une composante essentielle des forces sous-marines pour les 50 années à venir. Le programme Barracuda prévoit la réalisation de 6 SNA pour remplacer les SNA de type Rubis. Par rapport aux SNA actuellement en service, le SNA de type Suffren apportera une meilleure invulnérabilité, notamment dans le domaine acoustique.

 

Pour l’action sous la mer, la capitalisation des savoir-faire acquis lors de la réalisation des sous-marins type Triomphant permet d’escompter des performances en détection sous-marine et en discrétion acoustique du niveau des meilleurs des sous-marins étrangers. Le SNA de type Suffren emportera la future torpille lourde.

 

Pour l’action au-dessus de la surface, les systèmes de transmission et d’acquisition du renseignement en font un bâtiment apte à travailler soit seul, soit de façon parfaitement intégrée dans une force navale. Pour l’action vers la terre, le sous-marin mettra en œuvre le missile de croisière naval (MdCN) et améliorera les capacités d’opérations spéciales en surface et en plongée. Le 1er SNA Suffren devrait être livré en 2018.

Partager cet article

25 mars 2015 3 25 /03 /mars /2015 17:35
L’Inde pourrait confier la construction de ses prochains sous-marins à des chantiers navals privés

 

24 mars 2015. Portail des Sous-Marins

 

Si le ministère indien de la défense suit les recommandations d’un comité d’experts, seuls des chantiers privés pourront participer à un appel d’offres pour construire 6 sous-marins classiques à propulsion anaérobie.

 

L’appel d’offres pour un montant de 10,9 milliards € sera envoyé aux chantiers Pipavav Defence and Offshore Engineering et Larsen & Toubro, indique une source du ministère.

 

Le comité de la marine indienne, dirigé par le vice-amiral A.V. Subhedar, contrôleur de l’achat et de la construction des navires, a aussi évalué les chantiers publics Hindustan Shipyard et Mazagon Docks. Il a présenté ses conclusions préliminaires au ministère ce mois-ci.

 

Le comité devrait remettre ses recommandations définitives le mois prochain. Les observations faites par les membres du comité ne peuvent être facilement ignorées par le ministère, explique la source, parce que la marine veut un calendrier précis et contraignant pour la livraison des sous-marins.

 

Les membres du comité ont expliqué que, même si les chantiers publics ont les capacités et l’expertise nécessaires pour la construction des sous-marins, ils ne devraient pas être retenus pour le prochain appel d’offres du “Projet 75”. Les chantiers publics ont déjà un carnet de commande plein et ils ne respectent pas les calendriers de livraison. Par exemple, la livraison des sous-marins Scorpène construits par Mazagon Docks a déjà plus de 4 ans de retard.

 

En comparaison, Pipavav et L&T ont les capacités et l’expertise nécessaires, et ils peuvent livrer rapidement, ont indiqué les membres du comité lors de leur présentation.

 

Bien que Pipavav Defence n’ait aucune expérience dans la construction de sous-marins, il a conclu des accords de technologie avec DCNS. De son côté, L&T a participé à la construction du sous-marin nucléaire Arihant.

 

Référence : Defense News (Etats-Unis)

Partager cet article

24 mars 2015 2 24 /03 /mars /2015 21:35
Scorpene-class submarine. File photo

Scorpene-class submarine. File photo

 

24 mars 2015. Portail des Sous-Marins

 

C’est la première bonne nouvelle pour la force sous-marine indienne depuis très longtemps. Le premier des 6 sous-marins classiques Scorpène dont la construction se déroule au chantier Mazagon Docks Ltd de Mumbai dans le cadre d’un accord de transfert de technologie avec DCNS, a été mis à l’eau.

 

C’est une indication que la livraison des sous-marins, retardées de plus de 4 ans, est finalement en vue. La date de livraison du 1er Scorpène à la marine indienne est maintenant fixée à septembre 2016. Les 5 sous-marins suivants seront livrés au rythme d’un tous les 9 mois.

 

La mise à l’eau du sous-marin signifie qu’il est désormais à un stade avancé de finition. On parle encore du “lancement”, même si, étant construit dans une cale sèche et non plus sur un plan incliné, c’est la cale qui est inondée.

 

« La coque épaisse et la coque extérieure du 1er Scorpène sont terminées. L’installation des équipements intérieurs avance bien. Le sous-marin va maintenant être remorqué hors de la cale sèche de MDL vers la base navale. Cela va libérer une cale de construction à MDL, et nous aider à respecter les échéances pour les sous-marins suivants. Le travail restant à faire sur le 1er Scorpène, en particulier l’installation des batteries, sera effectué à la base navale, » a indiqué une source haut placée au sein de la marine indienne.

 

Lorsque l’installation des équipements sera terminée, le 1er Scorpène commencera ses essais à quai, puis il effectuera les essais à la mer, pendant lesquels il validera sa capacité à lancer des armes, avant d’être finalement admis au service actif.

 

Le Scorpène est l’un des sous-marins classiques les plus modernes et les plus discrets au monde. Il sera armé de missiles Exocet et de torpilles Black Shark.

 

Référence : Sunday Guardian (Inde)

Partager cet article

24 mars 2015 2 24 /03 /mars /2015 12:35
Scorpene photo DCNS

Scorpene photo DCNS

 

NEW DELHI, March 23 By Richard Tomkins  (UPI)

 

A French-designed submarine being built in India is afloat as it enters advanced construction.

 

The first of six Scorpene attack submarines being built in India by Mazagon Docks Ltd has taken to water as it enters an advanced stage of completion.

 

The Sunday Guardian reported the vessel is now on schedule to be delivered to the Indian Navy in September of next year, with the remainder of Scorpenes being handed over at nine-month intervals.

 

"Both the pressure and the outer hull of the first Scorpene are in place," an unidentified Indian Navy source told the newspaper. "Much of the internal fit is also progressing well.

 

"The submarine will now be placed on a pontoon, and tugged out of MDL docks to the nearby Indian Navy Dock. This will free one precious submarine-building dock at MDL, and thus help in meeting deadlines for subsequent Scorpenes."

 

The Scorpene is a French-designed submarine from DCNS, which is transferring technology to Mazagon Docks Ltd under an agreement with Indian authorities.

 

Delivery of the first Scorpene to the Indian Navy is scheduled for September 2016. Thereafter, the delivery of the subsequent five has been promised at the rate of one every nine months.

 

The Indian Navy plans to arm the diesel-powered submarines with Exocet missiles and Black Shark torpedoes.

 

The newspaper described the construction of the submarines as a "desperately needed relief for the Indian Navy, which has lost five submarines in the last 15 years due to decommissioning or phase-out and accident, but not added a single new conventional submarine.

Partager cet article

23 mars 2015 1 23 /03 /mars /2015 08:35
Soryu class submarines (photo kure-news)

Soryu class submarines (photo kure-news)


18 March 2015 by Aurelia George Mulgan, Professor at the University of New South Wales, Canberra.- Pacific Sentinel
 

In July 2014, the Abe government adopted the ‘Three Principles on Transfer of Defense Equipment and Technology’, which approved Japanese weapons exports as long as certain conditions are met.

 

Based on this new, less restrictive policy on weapons exports Japan has concluded two major deals. The first is to supply surface-to-air missile parts to the US and the second to conduct joint research on air-to-air missiles with the United Kingdom. The proposed Australian submarine deal would eclipse both of these in terms of scale and significance.

 

Japan is yet to respond to the Australian government’s announcement that there would be a ‘competitive evaluation process’ to build Australia’s next submarine. But the Japanese Minister for Defense, Gen Nakatani, expressed a wish to hold talks with the Australian government regarding the matter. The Japanese government now understands that the submarine procurement issue is intertwined with Australia’s domestic politics and ‘is keeping a close eye on Abbott’.

 

Despite critical commentary in the Japanese press on the Australian government’s policy backflip, speculation continues that Japan’s Soryu-class submarines are the most likely candidate to replace Australia’s ageing Collins-class submarines. The expectation is that cooperation with Japan will continue because Australian companies are ‘incapable of building submarines on their own’.

 

In early January 2015, the Japanese press reported that the Ministry of Defense (MOD) had proposed joint development and production of the submarine with Australia. Instead of exporting a completed Soryu-class submarine, the proposal suggested joint development of new technology for material that absorbs sound waves and special steel that would be used to manufacture the hull.

 

Japan would be in charge of producing the main parts of the hull and assembling the submarines, while Australia would be in charge of producing some of the parts as well as the final building and maintenance. A Japanese MOD official noted that assembling the submarines in Australia would lead to higher costs and might affect the quality and safety of the product.

 

Other reports point to Japanese caution about completely handing over its submarine technology to Australia. Submarines are categorised as the ‘most sensitive of all sensitive information’. For this reason the Japanese military, and especially the Maritime Self-Defense Force (MSDF) whose cooperation will be essential if the deal goes ahead, has major reservations about the deal. MSDF officers ‘don’t tell colleagues, let alone family members, where a submarine is headed after it leaves port’. Japan and the US, which share some information gathered by submarines, do not share the location or ability of each submarine.

 

But the Abe government judged that sharing Japan’s submarine technology with Australia would lead to a strengthening of the production capacity of Japan’s domestic enterprises. The fact that Prime Minister Abe decided to examine the provision of Soryu-class submarine technology to Australia despite opposition from the MOD was regarded as proof that he considers Australia to be a ‘quasi-ally’.

 

The Abe administration is gradually putting in place the necessary policy, institutional and financial support framework to enable Japan’s defence industries to become significant players in the international weapons and defence technology market. In 2015, the Japanese government will launch a Defence Equipment Agency in the MOD. The new agency will have centralised control over defence equipment development, acquisition and exports. It will lead the expansion of weapons exports and is part of the so-called ‘Abe line’ that links the development of defence enterprises with the government’s growth strategy.

 

The MOD’s 2014 Strategy on Defense Production and Technological Bases includes financial assistance for the overseas expansion of defence enterprises and funding to research institutions that work on developing technology that can be used in weapons and equipment. A new executive panel for promoting weapons exports and joint development was also appointed to the MOD in December 2014. It will help the ministry to respond to the many requests for a framework to support the private enterprises involved and establish a system to determine the needs and technological standards of partner countries.

 

While the government has given the green light to weapons sales, companies that manufacture defence equipment are more mindful of the difficult practicalities of particular deals and the need to gain real profits. Some have strong reservations about the Australian submarine deal. An executive of Kawasaki Heavy Industries remarked ‘there is no way Australia will be able to look after the submarines properly even if we give it to them’. But at this stage it is ‘almost impossible’ for a private company to become even partially involved in the operations of the Australian Navy.

 

If the agreement goes ahead this deal could signal an inseparable security relationship between Australia, Japan and the US with both Japan and the US supplying their relevant technology to Australia and cooperating in Australia’s submarine development.

 

For Prime Minister Abe, weapons exports are a key element in a broader strategy of building a network of ‘quasi-alliances’, which includes Australia, India and Southeast Asian countries, with the Japan–US alliance maintained as the strategic ‘trump card’.

 

Partager cet article

22 mars 2015 7 22 /03 /mars /2015 12:50
A26 submarine - credits : Saab-Kockums

A26 submarine - credits : Saab-Kockums

 

March 20, 2015 By Gerard O'Dwyer – Defense News

 

HELSINKI — The Swedish government's approval of $700 million in new funding to bolster naval capacity forms part of a wide-ranging capital investment plan to significantly advance the military's surface warship presence in the Baltic Sea and submarine hunting capabilities.

The special funding is intended to be used by the Navy for core investment programs in 2016-2020.

In its funding proposal, the Armed Forces Command (AFC), envisaged a more expansive naval-strengthening plan costing up to $2 billion. The government's response has been to announce the purchase of two new A26-class submarines. The capital budget earmarked for the A26-class submarine acquisition amounts to $950 million.

Saab-Kockums, which signed in June 2014 a letter of intent covering the A26's design and development, is expected to secure the contract and deliver the two submarines by 2022.

 

Read more

Partager cet article

22 mars 2015 7 22 /03 /mars /2015 12:35
Type 093 midget submarine

Type 093 midget submarine

 

March 19, 2015 by asian-defence.net

 

Beijing has revealed a version of the Type 093 midget submarine, known as the 093T, suggesting that more vessels in this class may be produced, reports news website Cankao Xiaoxi.

 

The 093B midget submarine reportedly has a vertical launch system that can launch 16 missiles, including the supersonic anti-ship YJ-18 and the DH-10 cruise missile.

 

Such a submarine can carry up to nine special ops members and is ideal for covert transportation and surprise attack. It can also launch laser-guided missiles or sneak combat divers into military ports to perform recon or destroy high-value targets such as aircraft carriers or nuclear submarines.

 

The United States was developing a midget version of its Ohio-class submarines but reportedly stopped development after a fire in 2008. The submarines used a dry-deck shelter system which allows the midget submarine to dock completely inside of its larger cousin. The 093T submarine adapts a wet-deck shelter system, which means only two thirds of the submarine are secured to the mother submarine and the rest is exposed to water.

Partager cet article

22 mars 2015 7 22 /03 /mars /2015 08:40
Russia's New 4th Generation Lada Submarine To Nullify USA's Naval Power


March 20, 2015 by asian-defence.net
 

The new Russian submarine, Lada, will end the era of USA's reign at sea. Washington will lose the main instrument of "power projection" to remote regions and may finally lose its global geopolitical role as well.

Anti-Russian militaristic hysteria has been snowballing in the West lately. Having noticed the revival of the traditionalist, imperial Russia that the deceitful Western Sodom has been humiliating and insulting for decades, the "free" European and American media filled their reports and pages with alarmist headlines about Moscow's "military preparations."

Should the Russians launch a rocket from the Plesetsk cosmodrome or from a submarine in the Barents Sea, or send its strategic aircraft flying along European borders, countless Western publications explode in accusations of "militarism and imperialism," "nuclear weapons rattling" "intimidation of the international community," and so on and so forth. Meanwhile, important news reports that are directly related to a change in the military-strategic balance of power in Eurasia, often pass unnoticed.

 

The message did not receive any attention of the general public. Even military observers paid no proper attention to it. Yet, the news marked a real revolution in the field of military submarine making.For example, on October 13, 2014, RIA Novosti news agency reported, citing a source at the military-industrial complex of the Russian Federation that Russia decided to launch serial production of air-independent propulsion power plants that would be used for future Project 677 "Lada" submarines."

 

Advantages and disadvantages of underwater hunters

 

Today, all submarines are divided into two groups by the type of power plants: submarines with a nuclear power plant (nuclear reactor) and diesel-electric submarines that move on the surface with the help of a diesel engine, and use battery-powered electric motors when navigating under the water. 

Nuclear submarines appeared in the Soviet Navy in the late 1950s. The first nuclear submarine of Project 627 called the Leninsky Komsomol was put into operation in 1957. Since then and to this day, nuclear submarines constitute the main striking force of the Russian navy. They carry a wide range of most formidable weapons in the world - from strategic intercontinental missiles and tactical nuclear torpedoes to high-precision long-range cruise missiles - the core of the Russian strategic forces of non-nuclear deterrence.

 

Nuclear submarines possess a number of outstanding advantages. A nuclear sub can stay under the water for a practically unlimited period of time; it has high underwater speed, impressive submersion depth and an ability to carry a huge number of various weapons and equipment. Modern large displacement nuclear subs can be equipped not only with weapons, but also with highly efficient sonars, systems of communications, electronic reconnaissance and navigation.

At the same time, the main advantage of a nuclear power plant - its power - is the source of the main drawback of nuclear submarines. This drawback is noisiness. The presence of a nuclear reactor (and sometimes two) on board the submarine along with a whole range of other systems and mechanisms (turbines, generators, pumps, refrigeration units, fans, etc.) inevitably produces a variety of frequency oscillations and vibrations. Therefore, a nuclear submarine requires sophisticated technology to reduce the noise level.

 

Yet, a diesel-electric submarine is almost silent under water. Battery-powered electric motors do not require turbines and other noisy equipment. However, a diesel sub can stay under water for a relatively short period of time - just a few days. In addition, a diesel submarine is slow. The shortage of power, in turn, imposes serious constraints on displacement, weapons, and other key characteristics of diesel-electric submarines. In fact, these subs can hardly be referred to as "underwater" vessels. "Diving" would be a better word as they stay on the surface most of the time on deployment routes. In combat patrol areas, diesel-electric submarines have to ascend regularly and start diesel engines to recharge batteries.

 

For example, Russia's state-of-the-art diesel-electric submarine of Project 636.3 has only 400 miles of undersea navigation. In addition, the submarine moves under water at the speed of 3 knots, i.e. 5.4 km/h. Thus, such a submarine is unable to pursue an underwater target. The sub relies on intelligence information first and foremost. Hence, the main technique to use diesel-electric submarines in combat action is known as "veil" when submarines are deployed in a line perpendicular to the probable movement of the target, at specific distances from each other. The entire group of submarines receives commands from an external command post, which creates extra telltale factors and reduces the stability of underwater combat groups.

It has long been a dream for many navy engineers to create a submarine with a fundamentally new power plant that would combine the advantages of nuclear and diesel-electric submarines: power and stealth, longer autonomous diving and low noisiness. 

 

 

Project 677 Lada: Major technological breakthrough

 

Russian submarines of Project 677 Lada with air-independent power plant will mark a serious breakthrough in this direction. The new submarine will take the Russian undersea fleet to new frontiers.

The Lada sub is not large - their displacement is almost twice as less as that of the famous Varshavyanka. Yet, its arms complex is unusually large. In addition to traditional mine and torpedo weapons (six 533-mm torpedo tubes, 18 torpedoes or mines), Project 667 is the world's first non-nuclear submarine, equipped with specialized launchers for cruise missiles (ten vertical launchers in the middle part of the body). These cruise missiles can be both tactical and long-range missiles designed to destroy strategic targets deep into enemy territory. 

 

The most important feature of the new Russian submarine is the new air-independent propulsion plant. Without going into details, we would only say that with these power plants a Lada submarine will be submerged for up to 25 days - that is almost ten times longer than of its famous predecessor - Project 636.3 Varshavyanka. To crown it all, the Lada submarine will be even less noisy than the famous "black hole" Varshavyanka, which the Americans dubbed so because it is almost impossible to detect it. 

 

NATO countries, particularly Germany and Sweden, have long been trying to equip their submarines with such power plants. German shipbuilders have tried to build small submarines equipped with a hybrid power plant since late 1990s. It includes surface speed diesel engine for recharging batteries, silver-zinc batteries for energy-conserving underwater navigation and air-independent propulsion plant  for energy-saving underwater navigation on the base of fuel cells that include tanks with cryogenic oxygen and metal hydride containers (special metal alloy with hydrogen).

The Germans succeeded in increasing the duration of underwater navigation of their submarines to 20 days. Presently, German submarines with air-independent propulsion plants of various modifications are in navy service in Germany, Italy, Portugal, Turkey, Israel, Korea and several other countries.

 

Swedish group Kockums Submarin Systems began the construction of Gotland class submarines with air-independent propulsion power plants based on the so-called "Stirling engine". Swedish subs can also stay under water for up to 20 days without recharging batteries. Stirling engine submarines currently serve not only in Scandinavia, but also in Australia, Japan, Singapore and Thailand.

However, both German and Swedish submarines pale in comparison with Russian Lada submarines. Project 667 Lada is qualitatively a new generation of submarines. 

 

Rubin Design Bureau - the main developer of submarines in Russia - designed the Lada to deliver salvo torpedo-missile strikes on marine and stationary ground targets both from torpedo tubes and specialized vertical missile silos. Due to the unique sonar system, the Russian sub has a significantly increased distance for target detection. It can submerge at the depth of 300 meters, develop underwater speed of up to 21 knots and submerged endurance of 45 days. To reduce noisiness, vibration isolators are used along with all-mode propulsion motor with permanent magnets. The hull of the submarine is covered with "Molniya" ("Lightning") material that absorbs sonar signals.

The Russian air-independent propulsion power plant will be a lot more energy conserving than its German analogue with up to 25 days of continuing underwater navigation. At the same time, Lada will be substantially less expensive than the German Project 212\214 sub. 

Before 2020, the Russian Navy expects to receive 14 of new 4th generation submarines

"Four to six of such submarines can completely block closed or semi-closed water area as of the Black, Baltic and Caspian Seas. Their advantages are obvious to any naval specialist," Vice-Admiral Viktor Patrushev said in an interview with RIA Novosti in late 2010.

 

The deployment of two or three groups of Lada submarines can fundamentally change the balance of power not only in the Baltic, Caspian and Black seas, but also in the North, in the Mediterranean water areas and in the Atlantic and the Indian Ocean. In the North, in the Barents Sea, Lada will cover the routes of deployment of Russian strategic missile submarines from any activity that US and NATO forces may show. This will significantly improve the combat stability of the naval component of Russian strategic nuclear forces.

 

Presently, Russian missile cruisers are mainly on duty under the Arctic ice, where they are virtually inaccessible to enemy action. The Americans can detect, track and attack our submarine only at the stage of its transition to the ​​combat patrol area. The Lada sub is ideally suited to counter US submarines as they hear them at much greater distances.

With regard to the Mediterranean, the Atlantic and the Indian Ocean, the presence of Lada-type submarines in those waters nullifies the American naval power that is primarily based on aircraft carrier strike groups.

Partager cet article

20 mars 2015 5 20 /03 /mars /2015 08:50
A26 Next Generation Submarine - photo Saab

A26 Next Generation Submarine - photo Saab

 

Stockholm, 19 mars 2015 Marine & Océans (AFP)

 

La Suède va commander deux nouveaux sous-marins pour une somme maximale de 886 millions d'euros afin de renforcer sa Marine, quelques mois après le fiasco des recherches pour trouver au large de Stockholm un sous-marin soupçonné d'être russe, a annoncé jeudi le gouvernement.

 

"La commande (...) va permettre d'assurer la capacité sous-marine de la Suède au-delà de 2030", a dit le ministre de la Défense suédoise, Peter Hultqvist, cité dans un communiqué de son ministère.

 

Les appareils, de nouvelle génération, seront livrés au plus tard en 2022.

 

Le groupe d'armement et d'aéronautique Saab s'était félicité dès mardi du futur investissement de Stockholm dans deux sous-marins A 26.

 

La semaine dernière, le gouvernement avait déjà annoncé quelque 675 millions d'euros de crédits supplémentaires pour aider sa Marine à mieux défendre les côtes du pays après la déconfiture de la chasse au sous-marin présumé russe en octobre.

 

L'épisode de l'automne avait mis en lumière l'inadaptation des moyens de la Marine pour défendre l'archipel de Stockholm, dédale de chenaux où ce sous-marin avait pu se cacher pendant plusieurs jours.

 

"La capacité sous-marine est une composante centrale de la défense suédoise en temps de paix ainsi qu'en état d'alerte et en temps de guerre", a rappelé le ministère de la Défense dans son communiqué.

Partager cet article

19 mars 2015 4 19 /03 /mars /2015 09:20
Le SNA Saphir - photo S. Richard 32F-Marine Nationale

Le SNA Saphir - photo S. Richard 32F-Marine Nationale

 

Mar 05 2015 - By David Cenciotti - theaviationist.com

 

If you thought aircraft carriers were invincible you were wrong.

 

On Mar. 4, the French Ministry of Defense released some interesting details, about the activity conducted by one of its nuclear-powered attack submarine (SNA) in the waters of the North Atlantic Ocean.

According to French MoD website (that is no longer online, even if you can still find a cached version of the article titled “Le SNA Saphir en entraînement avec l’US Navy au large de la Floride” [or read it on RP Defense website] ), the Saphir submarine has recently taken part in a major exercise with the U.S. Navy off Florida.

The aim of the exercise was joint training with U.S. Carrier Strike Group 12 made by the aircraft carrier Theodore Roosevelt, several Ticonderoga cruisers or Arleigh Burke-class destroyers and a Los Angeles-class submarine, ahead of their operational deployment.

The scenario of the drills saw some imaginary states assaulting American economic and territorial interests; threats faced by a naval force led by USS Theodore Roosevelt.

 

Read more

Partager cet article

18 mars 2015 3 18 /03 /mars /2015 17:50
Saab Comments on the Swedish Government's Announced Investments in the Next Generation Submarine, A26

 

Mar 17, 2015 ASDNews Source : Saab AB

 

Defence and security company Saab welcomes the Swedish Minister of Defence, Peter Hultqvist’s, announcement to invest in two submarines of the next generation, A26, of a total amount of SEK 8,2 billion. The Swedish minister made the announcement in Karlskrona, Sweden.

 

Today, the Swedish Minister of Defence, Peter Hultqvist, announced that the government, on Thursday, intends to give a mandate to the Armed Forces to order two submarines.

 

Saab has not received any order on production of the new submarine but Saab looks forward to the discussions, which will lead to an agreement and order for A26. This will be a part of an earlier signed Letter of Intent.

 

Saab and FMV (The Swedish Defence Material Administration) signed a Letter of Intent in June 2014 regarding the Swedish Armed Forces’ underwater capability for the period 2015-2024. The Letter of Intent comprises support, development, design and production of submarines and other underwater systems, corresponding to potential orders of approximately SEK 11.2 billion, provided that necessary decisions are made.

Partager cet article

13 mars 2015 5 13 /03 /mars /2015 12:50
Tomahawk photo Raytheon

Tomahawk photo Raytheon

 

Varsovie, 12 mars 2015 Marine & Océans (AFP)

 

La Pologne cherche un fournisseur de missiles de croisière avancés pour ses trois sous-marins dont elle veut se doter à l'horizon 2030, a indiqué jeudi le ministre polonais de la Défense Tomasz Siemoniak.

 

Le ministre a confirmé une rumeur, selon laquelle la Pologne avait notamment interrogé les Etats-Unis sur la disponibilité de ses missiles Tomahawk.

 

"Je confirme cette information", a déclaré M. Siemoniak à la radio publique Jedynka.

 

"L'an dernier, j'ai décidé que les navires polonais devraient en être capables (de lancer des missiles de croisière, ndlr) et nous nous adressons à tous ceux qui sont en mesure de livrer une telle arme, y compris à la partie américaine", a-t-il ajouté.

 

M. Siemoniak a idiqué que la procédure pour l'acquisition de trois sous-marins pourrait être lancée dès 2015.

 

Si Washington donne son feu vert à la vente de Tomahawk à Varsovie, ces missiles feraient concurrence notamment au système français MdCN monté uniquement sur les sous-marins fabriqués par le groupe DCNS, l'objet d'une offre très probable en réponse à l'appel polonais.

 

Inquiète de l'attitude agressive de la Russie voisine, la Pologne a lancé un vaste programme de modernisation de ses forces armées: au cours des dix prochaines années, Varsovie compte y consacrer 140 milliards de zlotys (environ 34 milliards d'euros).

 

L'important contrat le plus proche concerne une commande de 70 hélicoptères multifonctions par l'armée polonaise pour remplacer de vieux appareils soviétiques, une commande estimée à 2,5 milliards d'euros. Varsovie doit bientôt choisir le lauréat, en vue d'une finalisation au second semestre.

 

La compétition oppose l'américain Sikorsky, l'italo-britannique AgustaWestland ainsi que Airbus Helicopters (ex-Eurocopter), largement implanté en France. Un autre contrat d'hélicoptères d'attaque est également au stade de l'appel d'offres.

Partager cet article

13 mars 2015 5 13 /03 /mars /2015 12:35
RSN Challenger class (formerly known as Sjöormen class) submarine.

RSN Challenger class (formerly known as Sjöormen class) submarine.

 

11 March 2015 by aseanmildef.com

 

SINGAPORE, -- The vessels, RSS Centurion and RSS Challenger were originally in service with the Royal Swedish Navy (RSwN) as HMS Sjöormen and HMS Sjöbjörnen and re-launched in May 1999 and September 1997 respectively. Singapore acquired four Type A 12 Sjöormen-class submarines in the mid-1990s to give the RSN its first experience of submarine operations.

 

The 51 m vessels, which can reach a top speed of 20 kt while submerged, are equipped with four 533 mm and two 400 mm torpedo tubes, according to IHS Jane's Fighting Ships.

Partager cet article

13 mars 2015 5 13 /03 /mars /2015 08:50
UK Submarine Industry to Benefit from GBP285M Investment in Successor Programme

 

Mar 11, 2015 ASDNews Source : Ministry of Defence (United Kingdom)

 

    The Uk's Submarine Industry Will Benefit from GBP285 M of Investment to Continue Design Work for the Royal Navy's Next Generation of Nuclear Deterrent Submarines.

 

The release of funding for the design work is within the existing Successor programme’s £3.3 billion Assessment Phase. The funding forms part of the MoD’s commitment to spending £163 billion on equipment and equipment support over the next 10 years to keep Britain safe. That includes new strike fighters; more surveillance aircraft; hunter killer submarines; two aircraft carriers; and the most advanced armoured vehicles.

 

The Successor programme currently employs around 2,200 people in the UK, working for BAE Systems, Babcock and Rolls-Royce. For BAE Systems alone, the funding will sustain over 1,400 jobs on a programme that has already engaged with more than 240 suppliers.

 

The work is largely based at the home of the UK’s submarine manufacturing industry in Barrow-in-Furness, Cumbria but also across the UK including sites in Raynesway in Derby and Bristol.

 

Defence Secretary Michael Fallon said:

''The UK has been committed to a continuous at-sea deterrent for more than 45 years. This is because it is the responsibility of the British Government to protect its citizens and provide this vital line of defence. It is therefore crucial that we continue to invest in the Successor programme to be ready for a final decision on renewal next year.''

''It is thanks to our long-term economic plan that we are able to invest in this latest wave of design funding, which will help to secure the jobs of hundreds of people working across the MOD’s three main industrial partners working on the Successor programme. This underlines how important this work is to the British economy as well as the future security of the UK.''

 

As a result of today’s announcement, BAE Systems will proceed with an additional £257 million worth of design work, with a further £22 million at Babcock and £6 million at Rolls-Royce.

 

The Successor submarine is designed to be one of the most stealthy submarines in the world. It will also be the largest, safest and most technically advanced submarine ever built in the UK.

 

Under current plans, four Vanguard submarines – which currently maintain the UK’s nuclear deterrent - will be replaced from 2028.

 

Tony Johns, the Managing Director at BAE Systems’ Submarines, said:

''Designing a new, nuclear-powered ballistic missile submarine is one of the most challenging engineering projects in the world today. The Successor programme is the largest and most complex project we have ever faced. This funding will now allow us to mature the design over the next 12 months to enable us to start construction in 2016.''

 

Chief of Materiel (Fleet) Vice Admiral Simon Lister said:

''Today’s announcement on the third phase of design funding is another step forward in the programme to deliver the Successor submarine.''

''Over the next year, work on the design of the submarine will draw on cutting edge capabilities in innovation, design and engineering available in the UK to ensure we are able to meet the future defence needs of the UK.''

 

All Royal Navy submarines will be based at Faslane by 2020, including the Astute and Trafalgar class attack submarines.

Partager cet article

13 mars 2015 5 13 /03 /mars /2015 08:50
submarine Kondor is one of four Kobben-class boat

submarine Kondor is one of four Kobben-class boat

 

Mar 13, 2015 defense-aerospace.com

 (Source: Defence24.com Poland; published March 12, 2015)

 

Polish MoD: “Orka Submarine Programme Funding to Be Realized This Year”


The Polish Ministry of Defence has confirmed that funds to purchase new submarines are already reserved, but it is during the 4th quarter of this year, when the Ministry is going to start the analyses of options, that they will be used to launch the acquisition process.

Information related to the submarines was been published as a response to a parliamentary question (no. 30891) submitted by MP Artur Górski “…regarding the plans of the Ministry of Defence related to acquisition of three submarines for Poland, armed with cruise missiles”.

The ministry’s reply is highly significant in that, for the first time, the Polish Ministry of Defence has officially released information regarding the Orka future submarine project.

 

Which issues have been clarified?

Thanks to the response to the intervention, we now know that:

• Minister of Defence accepted the request submitted by the administrator of military equipment, regarding the acquisition of new submarines for the Polish Armed Forces on 27th September 2012;
• In the confidential document entitled “Plan of Technical Modernization of the Polish Armed Forces”, the Ministry of Defence’s budgetary assets are ring-fenced. These funds will be used to acquire the new submarines in 2015.
• “ORKA” programme is a long-term plan, funding of which is to be stretched out over several years until 2024;
• The Polish Ministry of Defence wants to acquire the new type of submarines armed with cruise missiles;
• Due to the plans of introduction of the cruise missiles, MoD is going to carry out additional analyses and arrangements, along with complementation of documentation, which are all going to be the basis for starting up the procedures. Analyses are to begin in the 4th quarter of this year;
• Despite the additional analyses and arrangements regarding the cruise missiles, the schedule related to procurement of the new submarines remains unchanged. “The first two submarines are planned to be acquired by 2022, the third one is to be received later”;
•„ In February this year, “offset assumptions related to acquisition of the new ORKA submarines have been developed,” the ministry said. According to these assumptions, a maintenance centre for the new type of submarines is to be created in Poland. The actions necessary will be taken to create a national potential for maintenance of technical readiness of the acquired submarines i.e. for servicing and carrying out repairs;
• The new submarines will be capable of “transporting troops that are not their crew members”;
• Training bundles, regarding preparation of the crew-members for service on-board of the submarines shall be included in the signed contracts;
• “The Polish Ministry of Defence is not planning to create a new special forces unit capable of operating with submarines. Existing special forces units, i.e. the Formoza, already possess such capabilities. Formoza’s operators are capable of carrying out special operations in water environment.”
• After the new submarines are introduced into service, the special forces will be trained in submarine operations in varied conditions, in accordance with procedures and techniques which are used by the special forces”.

What is missing in the Ministry’s response to the intervention?

• No estimated value of the order has been indicated – this would, according to the Polish MoD, reduce the room for negotiation of the Ordering Party in the planned procedure;
• No response has been made related to fusion of both procedures (acquisition of the submarines along with the cruise missiles);
• No response has been provided to the question, whether the government made any efforts to construct the submarines in the Polish shipyards, at least partially.

MoD has changed its approach towards the deterrence policy

The Ministry of Defence has changed its approach to the issue of equipping the submarines with cruise missiles, stating that “currently the basic task of the Polish Armed Forces is to defend the Polish territory. The semantic area of this term also includes military deterrence which shall be realized by demonstrating the readiness to defend the country with the existing forces. The new submarines will fall within that category and task.”

There is one more question – why it took so long for the Ministry of Defence to realize the fact that the submarines may be armed with the cruise missiles. Supposedly, a similar question was asked by MP Ludwik Dorn, leading Deputy Minister Mroczek to respond “Better late than never”.

The issue is far too serious to make fun of it – it shall be clarified why the plans of arming the submarines with the cruise missiles were sabotaged. And response to that question shall not be left in the shadows.


(EDITOR’S NOTE: Reuters reported from Warsaw this morning that Polish Defence Minister Tomasz Siemoniak “has asked the United States whether the European nation could buy Tomahawk missiles for its new submarines.”
Reuters quoted Siemoniak as saying on public radio that “One of the capabilities we want them to have is cruise missiles,” and he confirmed in a Tweet (see above).
France is also competing to supply submarines to Poland, in which case they would be armed with MBDA’s Missile de Croisière Naval (MdCN) cruise missiles as well as sub-surface-launched SM-39 Exocet anti-ship missiles)

Partager cet article

13 mars 2015 5 13 /03 /mars /2015 08:35
The 6th Soryu-class SSK, SS-506 Kokuryu, (meaning Black Dragon) of the Japan Maritime Self-Defense Force.

The 6th Soryu-class SSK, SS-506 Kokuryu, (meaning Black Dragon) of the Japan Maritime Self-Defense Force.

 

March 13, 2015 aseanmildef.com

 

TOKYO, -- The 6th Soryu-class SSK, SS-506 Kokuryu, (meaning Black Dragon) was commissioned into service with Japan Maritime Self-Defense Force (JMSDF) at the Kawasaki Heavy Industries shipyard in Kobe on March 9th.

The Soryu Class diesel-electric submarines are being built by Mitsubishi Heavy Industries and Kawasaki Shipbuilding Corporation for the Japan Maritime Self-Defense Force (JMSDF). Ten Soryu Class submarines are planned for the JMSDF. The class is an improved version of the Oyashio Class submarine.
 
According to Forecast International, the U.S. Navy Surface Ship Torpedo Defense (SSTD) program is developing and fielding six prototype Torpedo Warning System/Countermeasure Anti-Torpedo (TWS/CAT) Engineering Design Model (EDM) systems on CVN ships.
 
The keel for the first submarine in the class, Soryu (SS-501), was laid down in March 2005. It was launched in December 2007 and commissioned in March 2009. Unryu (SS-502) was laid down in March 2006, launched in October 2008 and commissioned in March 2010. Hakuryu (SS-503) was laid down in February 2007 and launched in October 2009 for commissioning in March 2011. The fourth and fifth submarines under construction are scheduled to be commissioned in 2012 and 2013 respectively.

SS-506 Kokuryu was laid down 21 January 201, launched 31 October 2013 and commissioned 9 March 2015.

Partager cet article

13 mars 2015 5 13 /03 /mars /2015 07:50
photo Photo Kim Svensson Swedish Armed Force

photo Photo Kim Svensson Swedish Armed Force

 

Stockholm, 12 mars 2015 Marine & Océans (AFP)

 

La Suède a annoncé jeudi des crédits pour aider sa Marine à mieux défendre les côtes du pays, quelques mois après le fiasco des recherches pour trouver au large de Stockholm un sous-marin soupçonné d'être russe.

 

Les militaires suédois avaient connu un revers cuisant en octobre en étant incapables de localiser ce qu'ils qualifiaient de "bâtiment étranger" dans les eaux territoriales près de la capitale, malgré cinq observations par des civils.

 

Si la Marine n'avait jamais voulu faire part de ses soupçons quant à l'origine de ce mystérieux sous-marin, tous les regards étaient tournés vers la Russie. Moscou avait cependant nié toute implication.

 

Le ministre de la Défense Peter Hultqvist a annoncé lors d'une conférence de presse jeudi que son gouvernement proposait d'allouer à la Défense 6,2 milliards de couronnes supplémentaires (environ 675 millions d'euros) d'ici à 2020, en particulier pour moderniser les navires qui pourraient détecter et intercepter des sous-marins. "Nous voulons renforcer nos capacités à chasser des sous-marins", a-t-il déclaré.

 

Les crédits doivent également permettre de rétablir une présence militaire permanente sur l'île de Gotland, entre la Suède et la Lettonie, que l'armée avait quittée en 2005. La plus grande île du pays "a une haute valeur stratégique pour la Suède et pour toute la Baltique", a souligné M. Hultqvist.

 

L'épisode de l'automne avait mis en lumière l'inadaptation des moyens de la Marine pour défendre l'archipel de Stockholm, dédale de chenaux où ce sous-marin avait pu se cacher pendant plusieurs jours.

 

Le pays s'était passionné pour cette affaire, qui avait réveillé les souvenirs des incursions réelles ou supposées de sous-marins soviétiques, récurrentes dans les années 1980.

 

La Suède, pays non aligné qui n'est pas membre de l'Otan, avait mis son armée à la diète pendant environ une décennie, avant de décider l'an dernier de renforcer ses capacités en invoquant "le réarmement de la Russie".

Partager cet article

12 mars 2015 4 12 /03 /mars /2015 17:20
HMCS Victoria - Photo LS Zachariah Stopa, MARPAC Imaging Services

HMCS Victoria - Photo LS Zachariah Stopa, MARPAC Imaging Services

 

March 12, 2015: Strategy Page

 

For the first time ever all four of Canada’s Victoria class diesel-electric submarines are operational.  Thus seventeen years after purchasing four slightly-used British diesel-electric submarines Canada has finally got all of them in shape to go to war. That’s progress, especially when you consider that in early 2014 only one of the four Victoria class subs could go to sea and actually fire a torpedo. At that point it was hoped that by 2016 two more would be ready as well. That goal was achieved early but now one of the four subs is about to undergo two years of scheduled upgrades and maintenance. The Victoria class subs will have to be retired (because of old age) by the late 2020s. Canada is still searching for a practical way to replace the Victorias.

 

What Canada has learned from all this is that submarines are expensive boats to build and maintain, even if they are secondhand. Some of the Victoria delays were because of accidents. Thus in 2014, ten years after a fire at sea, the HMCS Chicoutimi began returning to service, sort of. Chicoutimi could only make shallow dives initially and tests were required to make sure the new torpedo handling equipment was working properly. The repairs for the 2004 fire cost $125 million and the fire occurred a month after Chicoutimi entered Canadian service. But now Chicoutimi is really, really ready for service.

 

The Victoria Saga all began in the 1990s, when Canada wanted to replace its 1960s era diesel-electric subs. This did not seem possible, because the cost of new boats would have been about half a billion dollars each which was more than Canada could afford. Britain, however, had four slightly used Upholder class diesel-electric subs that it was willing to part with for $210 million each. That was nearly half what it cost Britain to build these boats in the late 1980s. The Upholders entered British service between 1990 and 1993 and were mothballed shortly thereafter when it decided to go with an all-nuclear submarine fleet.

 

So the deal was made in 1998, with delivery of the Upholders to begin in 2000. Canada decommissioned its older Oberons in 2000, then discovered that the British Upholders needed more work (fixing flaws, installing Canadian equipment) than anticipated before they could enter service as the Victoria class. It wasn't until 2004 that the subs were ready and that year Chicoutimi was damaged by fire while at sea. Chicoutimi was supposed to be back in service by 2006 but the repair job was more extensive than first realized and there were other problems found as the repairs proceeded. Thus the initial $20 million repair job just got more and more expensive.

 

By 2004 the Upholders were transformed into the Victoria class and were much more modern and capable than the older Oberons. The Victorias are 2,160 tons (displacement on the surface) boats with a crew of 46 and six torpedo tubes (and 18 Mk 48 torpedoes.) The electronics on the Victorias are state of the art and a primary reason for buying these boats in the first place. The subs are used to patrol Canada's extensive coastline. The passive sonars on these subs make it possible to detect surface ships over a great distance. But not having any subs on active duty, ready for combat, for most of the decade after the Chicoutimi became a major issue in Canada.

 

The problem is that the subs were bought without a thorough enough examination. It was later found that most major systems had problems and defects that had to be fixed (at considerable time and expense). Thus these boats have spent most of their time, for decade, undergoing repairs or upgrades. The final fix was be to get the torpedo tubes working, something that was only completed in the last two years. In any event, a Canadian sub has never fired a torpedo in combat, mainly because the Canadian Navy did not get subs until the 1960s. Lots of Canadian surface ships have fired torpedoes in combat, but the last time that happened was in 1945.

 

Canada has the longest coastline (202,080 kilometers) in the world, more than three times longer than that of the nation (Indonesia) with the next longest (57,716 kilometers) coastline. Worse, most of the Canadian coastline is in arctic or subarctic waters. So far the Victorias have performed well in all parts of this long coastline, but there are only four of them.

Partager cet article

12 mars 2015 4 12 /03 /mars /2015 13:55
Mission Jeanne d’Arc 2015 : Les officiers-élèves embarquent sur sous-marin nucléaire d’attaque

 

12/03/2015 Sources : Marine nationale

 

Profitant de l’intégration ponctuelle d’un sous-marin nucléaire d’attaque (SNA) au groupe amphibie constitué pour la mission Jeanne d’Arc, les officiers-élèves embarquent à son bord et découvrent à la mer l’univers des forces sous-marines.

 

7h du matin, alors que le jour se lève sur la mer Méditerranée, le kiosque du SNA qui accompagne le groupe Jeanne d’Arc apparaît sur le travers du BPC Dixmude. Tandis que des officiers-élèves débarquent, enthousiasmés par ce qu’ils viennent de vivre pendant 24 heures, d’autres s’équipent pour rejoindre le sous-marin et vivre à leur tour cette expérience.

 

Ils connaissent tous les missions du SNA, mais pour la plupart d’entre eux, cette immersion sous la mer est inédite. C’est l’occasion pour eux de quitter la théorie des cours et de découvrir in-situ l’univers et les missions des forces sous-marines. Pour quelques-uns d’entre eux, ce sera même le début d’une vocation.

 

L’espace est certes restreint à bord du SNA, mais il y a tant de choses à voir entre le poste central de navigation et d’opération (PCNO), le poste central de propulsion (PCP) en tranche arrière et la tranche « armes » à l’avant que ces 24 heures passent bien (trop) vite. Commandant, officier chef du quart, officier de quart au PCP, maître de centrale, tout l’équipage se prête volontiers au jeu des questions des officiers-élèves. Après une nuit chargée passée sous la mer, il est déjà l’heure de refaire surface. « Top la vue » entend-on au PCNO, tours d’horizon rapides au périscope, le Dixmudeest bien là au rendez-vous. Les officiers-élèves, enthousiastes, se préparent à retourner à bord du BPC. Il faut déjà penser à la suite de la mission mais chacun est d’ores et déjà enrichi par ce qu’il vient de vivre.

 

La mission Jeanne d’Arc 2015 commence à peine. Le déploiement de longue durée du groupe amphibie et la variété des missions qui seront effectuées permettent de lui adosser la formation pratique d’officiers-élèves issus de différents corps d’officiers. Ils pourront ainsi, intégrés aux équipages du Dixmude et de l’Aconit, parfaire leur aptitude professionnelle dans une véritable mise en condition opérationnelle.

Mission Jeanne d’Arc 2015 : Les officiers-élèves embarquent sur sous-marin nucléaire d’attaque
Mission Jeanne d’Arc 2015 : Les officiers-élèves embarquent sur sous-marin nucléaire d’attaque

Partager cet article

11 mars 2015 3 11 /03 /mars /2015 17:20
PCU Colorado (SSN 788) - photo US Navy

PCU Colorado (SSN 788) - photo US Navy

 

Mar 10, 2015 ASDNews Source : US Navy

 

The U.S. Navy held a keel laying ceremony for the Virginia-class submarine Pre-Commissioning Unit (PCU) Colorado (SSN 788) at General Dynamics Electric Boat, March 7.

 

The initials of the submarine's sponsor, Annie Mabus, were welded onto a steel plate that will be permanently affixed to the submarine. Mabus is the daughter of Secretary of the Navy Ray Mabus.

 

Read more

Partager cet article

11 mars 2015 3 11 /03 /mars /2015 08:20
USS Maryland (SSBN 738)

USS Maryland (SSBN 738)

 

Mar 9, 2015 ASDNews Source : US Navy

 

Norfolk Naval Shipyard (NNSY) successfully undocked USS Maryland (SSBN 738) Feb 21. SSBN 738 is now pier-side to finish its Engineered Refueling Overhaul (ERO), a complex, major shipyard availability at the submarine's mid-life point that enables the submarine to operate for its entire design service life. Maryland has been at NNSY since Dec. 2012.

 

Read more

Partager cet article

9 mars 2015 1 09 /03 /mars /2015 17:35
INS Sindhuratna - photo Indian Navy

INS Sindhuratna - photo Indian Navy

 

9 mars 2015. Portail des Sous-Marins

 

Le gouvernement indien a retenu 2 chantiers navals — Larsen & Toubro (L&T) et Pipavav Defence & Offshore Engineering Company — pour l’attribution d’un contrat de construction de 6 sous-marins classiques dans le cadre de son projet 75i.

 

Selon des sources haut-placées, un comité de haut-niveau présidé par le vice-amiral Subhedar, a inspecté à la fois des chantiers navals privés et publics en vue de sélectionner les chantiers pouvant postuler à l’attribution du contrat. Dans sa présentation au ministère de la défense la semaine dernière, le comité a retenu les 2 chantiers navals du secteur privé : le chantier Katupalli de L&T et Pipavav.

 

Le contrat sera du type “achat et construction en Inde”. Cela implique que le ou les chantiers devront conclure des accords avec des sociétés étrangères.

 

Le chantier Pipavav a déjà conclu de tels accords, avec DCNS par exemple. L’objectif du chantier est de se diversifier sur le marché des sous-marins. Il a aussi la capacité de construire plusieurs sous-marins en même temps.

 

Le Projet 75i prévoit la construction de 6 sous-marins classiques à propulsion anaérobie. La livraison doit intervenir en 2022.

 

Référence : Financial Express (Inde)

Partager cet article

Présentation

  • : RP Defense
  • RP Defense
  • : Web review defence industry - Revue du web industrie de défense - company information - news in France, Europe and elsewhere ...
  • Contact

Recherche

Articles Récents