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December 7, 2018 | International, Naval

Les frégates de la classe Nansen souffrent d’un défaut sérieux de conception. Le chantier Navantia mis en cause

(B2) Un premier rapport du bureau enquêtes accidents norvégien (AIBN) l'affirme sans ambages. La collision entre une frégate de la marine norvégienne KNM Helge Ingstad et un tanker maltais (Sola TS) dans la baie de Hjeltefjorden en Norvège le 8 novembre, révèle un problème grave de conception sur certains navires fabriqués par les chantiers navals espagnols Navantia. Une alerte sécurité vient d'être envoyée

Un naufrage à proximité des côtes

Rappelons-nous, c'était juste après l'exercice de l'OTAN Trident Juncture, la frégate norvégienne (qui porte le numéro de coque F-313), effectuait des manœuvres à proximité des côtes, près du terminal pétrolier de ce fjord norvégien situé non loin de Bergen, quand il heurte le pétrolier qui naviguait en sens inverse. La collision ne provoque que peu de dég'ts dans le pétrolier, mais pour le navire militaire les conséquences sont autrement plus graves.

Une enquête des bureaux d'accidents civil et militaire norvégiens

La frégate norvégienne, qui fait alors partie de la force navale permanente de l'OTAN (SNMG1), est atteinte « au-dessus et au-dessous de la ligne de flottaison » et « absorbe énormément d'eau » comme le signale le ministère norvégien de la Défense. Il n'est plus stable et doit être échoué. Ses 137 marins doivent être évacués. Une enquête est alors diligentée associant le bureau d'enquête accidents maritime norvégien (AIBN) et son pendant militaire (DAIBN), auquel est associé l'unité d'enquête maritime maltaise (MSIU), autorité du pavillon du pétrolier.

Les compartiments non étanches

Trois compartiments étanches à bord du KNM Helge Ingstad sont inondés : « la salle du groupe électrogène arrière, les quartiers de l'équipage du pont Orlop et le magasin » selon le rapport de l'AIBN. La stabilité est jugée « médiocre », mais le navire est encore considéré comme 'sauvable'. Cette première évaluation ne résiste pas. L'eau gagne du terrain. Elle « coule de la salle des génératrices arrière vers la salle des engrenages via les arbres creux de l'hélice, puis de la salle des engrenages, vers les salles des machines avant et arrière via les boîtes de rangement dans les cloisons ». Quand la salle d'engrenage est inondée, l'évacuation des 137 marins est décidée. Le navire est considéré comme « perdu ». Huit marins sont légèrement blessés dans les différentes manœuvres.

Le navire échoué coule à pic

Les autorités espèrent encore pouvoir récupérer le navire, qui flotte toujours, en le fixant avec des c'bles. Mais dans la nuit du 12 au 13 novembre, ils s'arrachent et le navire coule à pic. Le navire est désormais considéré comme irrécupérable, même si les travaux sont toujours en cours pour être renfloué, comme le précise le ministère norvégien de la Défense. Perte sèche : 4,2 milliards de couronnes (environ 220 millions d'euros).

Une enquête nécessaire chez Navantia

L'autorité norvégienne préconise une vérification des navires norvégiens de même conception. Oslo dispose encore de quatre navires de la même classe — le KNM Fridtjof Nansen, le KNM Roald Amundsen, le KNM Otto Sverdrup et le KNM Thor Heyerdahl — construits sur les chantiers navals espagnols de Ferrol de Navantia. Elle demande ainsi à Navantia de mener « une enquête sur les problèmes identifiés lors de la première enquête et de déterminer s'il s'agit également d'un problème lié à d'autres navires ». L'industriel espagnol doit aussi envoyer une notification aux chantiers, propriétaires et exploitants concernés, pour leur indiquer « les mesures à prendre pour assurer la sécurité ».

(Nicolas Gros-Verheyde)

https://club.bruxelles2.eu/2018/12/un-defaut-de-conception-dans-les-fregates-de-type-nansen-le-chantier-navantia-mis-en-cause/

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  • US approves $7.5 billion in foreign weapons sales in one day

    July 7, 2020 | International, Land

    US approves $7.5 billion in foreign weapons sales in one day

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Also included are 24 AE 1107C Rolls-Royce engines; 20 each of the AN/AAQ-27 forward-Looking infrared radars, AN/AAR-47 missile warning systems and AN/APR-39 radar warning receivers; and 20 each of the M-240-D 7.64mm machine guns and GAU-21 machine guns, among other gear. The potential sale is announced at a time when the U.S. is seeking to beef up both its presence and the capabilities of partner nations in the Pacific in order to blunt Chinese interests in the region. This is the first DSCA notification of an arms sale to Indonesia since at least September 2017. “This proposed sale will support the foreign policy goals and national security objectives of the United States by improving the security of an important regional partner that is a force for political stability, and economic progress in the Asia-Pacific region. It is vital to U.S. national interest to assist Indonesia in developing and maintaining a strong and effective self-defense capability,” the DSCA notification read, adding the sale will “enhance Indonesia's humanitarian and disaster relief capabilities and support amphibious operations.” Primary work will be done by Bell Textron in Amarillo, Texas, and Boeing in Ridley Park, Pennsylvania. Lithuania: The Baltic nation of Lithuania plans to spend $380 million to procure six UH-60M Black Hawk helicopters. The standard U.S. configuration requested includes 14 T700-GE-701D engines, 12 M240H machine guns, night vision goggles, a number of radios and thousands of rounds of ammunition. “The proposed sale of these UH-60 helicopters to Lithuania will significantly increase its capability to provide troop lift, border security, anti-terrorist, medical evacuation, search and rescue, re-supply/external lift, combat support in all weather,” per the DSCA. “These UH-60 helicopters will allow for interoperability with U.S. and NATO forces in rapid response to a variety of missions and quick positioning of troops with minimal helicopter assets. Lithuania intends to use these defense articles and services to modernize and expand its armed forces to provide multi-mission support in its region and combat terrorism threats.” The Black Hawks will replace the nation's Soviet-made Mi-8 fleet. The U.S. is helping fund Lithuania's purchase through the European Recapitalization Incentive Program, or ERIP, a tool developed in 2018 alongside U.S. European Command to speed up the process of getting allied nations off Russian gear. The State Department kicked in $30 million of ERIP funding to help complete that deal. So far, three of the eight countries to receive ERIP funds have used them to purchase Black Hawk helicopters. Work will primarily be done at Sikorsky's Stratford, Connecticut, location and General Electric Aircraft Company in Lynn, Massachusetts. Argentina: The South American nation seeks 27 M1126 Stryker infantry carrier vehicles, with an estimated $100 million price tag. In addition to the vehicles themselves comes a pile of equipment, including 27 M2 Flex .50-caliber machine guns, radios and smoke grenade launchers. In addition, the vehicles come with special de-processing services outside of the continental United States as well as contractor-provided training. “The proposed sale will improve Argentina's capability to meet current and future threats by increasing operational capabilities and force availability,” per DSCA. “Argentina will use the Stryker vehicles to conduct stability operations in support of disaster relief and international peace keeping obligations.” Primary work will occur at the General Dynamics Land Systems facility in Anniston, Alabama. This marks Argentina's second FMS request of the fiscal year, after a December request for $70 million worth of support for its aging P-3C fleet. https://www.defensenews.com/global/the-americas/2020/07/06/us-approves-75-billion-in-foreign-weapon-sales-in-one-day

  • Boeing has another overrun on the KC-46, but its CEO says there’s reason for hope

    October 29, 2020 | International, Land

    Boeing has another overrun on the KC-46, but its CEO says there’s reason for hope

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  • US approves location for Singaporean F-16, F-35 training

    June 8, 2021 | International, Aerospace

    US approves location for Singaporean F-16, F-35 training

    Singapore’s fleet of 12 F-16s is expected to begin arriving in 2023, and its first of up to 12 F-35Bs are to follow in 2026.

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