15 septembre 2021 | International, Aérospatial

Pentagon taps industry for nuclear-powered propulsion for its satellites

The Defense Innovation Unit is looking for commercial solutions that can provide nuclear-powered propulsion for military satellites.

https://www.c4isrnet.com/battlefield-tech/space/2021/09/10/pentagon-taps-industry-for-nuclear-powered-propulsion-for-its-satellites/

Sur le même sujet

  • NATO’s London meetings are off to a rocky start

    4 décembre 2019 | International, Autre défense

    NATO’s London meetings are off to a rocky start

    By: Sebastian Sprenger LONDON — U.S. President Donald Trump landed Tuesday in London with a splash, decrying French President Emmanuel Macron's recent description of NATO as brain dead, calling it a “nasty” assessment and unfair to the alliance. Trump's remarks on the eve of a meeting of government leaders here on Wednesday come as NATO members are already on edge about myriad internal differences. Clashing views have become so pronounced in the last few weeks that some observers fear the worst for what has been billed as NATO's 70th birthday bash. “You just can't go around making statements like that about NATO,” Trump said of Macron in a joint news conference with Secretary General Jens Stoltenberg. “It's very disrespectful.” The U.S. president's words are remarkable not for their tone — he also delivered an en passant bashing of French politics and economy — but for the substance of the argument. Trump, who has shown a deep disdain for the mere principle of multilaterlism, appears to be shielding NATO from Macron's critique, which in turn was partly aimed at himself. Talk about the three-dimensional chess of geopolitics. Or something like that. Stoltenberg, for his part, sought to downplay any cracks within the alliance, arguing in typical fashion that healthy squabbling should be expected in any group of countries working together. “If you look at the substance, you can see that the alliance is delivering,” he said at the NATO Engages think tank event in central London. He named ongoing operations to secure the eastern flank against Russia, the training of security forces in Iraq and an uptick in defense spending by all allies in recent years as examples of an alliance that continues to be operationally relevant. Stoltenberg was noncommittal, however, on the latest curveball thrown by member country Turkey. The Turks want their perception of a terrorist threat posed by YPG Kurdish units to their border with Syria recognized by all of NATO as a quid pro quo for backing the alliance's bolstering of the Baltics. Such a deal could cause a significant rift. Trump is an admirer of Turkish President Recep Tayyip Erdoğan, and will likely get more deeply involved in the issue during meetings here. “Turkey does not question the alliance, but rather Turkey expects an understanding of the threat of terrorism to one of its allies,” Gülnur Aybet, Erdogan's senior adviser on foreign policy, told the NATO Engages audience. “We don't question the credibility of Article 5. On the contrary, we expect it to be fulfilled,” she added, referring to the alliance's creed that an attack on one member will prompt a response by all. https://www.defensenews.com/smr/nato-2020-defined/2019/12/03/natos-london-meetings-are-off-to-a-rocky-start/

  • UK defense plans could take major hit from coronavirus fallout

    24 avril 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

    UK defense plans could take major hit from coronavirus fallout

    By: Andrew Chuter LONDON — Britain is facing some “distasteful medicine “ in an upcoming defense review, with question marks around money, allies, the industrial base, Defence Secretary Ben Wallace has warned. Giving evidence in a virtual session of the Parliamentary Defence Committee April 22, Wallace said there were some difficult issues to be addressed by a post COVID-19 Britain. “We will have to take some pretty distasteful medicine," he told committee members spread across the country in the first ever virtual session of the committee. "It's not just about sums of money. It is about cultural change — our relationship with our allies, what Britain's ambitions are going to be. Do we want to do everything? Do we want to do less? Do we want to let go of something? Do we want to bank on international consortia every time, or do we want to invest in our industrial base? All those are difficult questions. The defense secretary, who only recently recovered from COVID-19, said changing the culture is going to be as important as the sums of money made available to the Ministry of Defence in the integrated review. The government refers to it as an ‘integrated review' as it involves, defense, security, foreign policy and international development departments. Wallace said that whether the review is uncomfortable or not, his hope is the defense ministry will have a realistic amount of money available to undertake what it recommends. That's rarely been the case in previous reviews over the last 30 years or so, and few people here are expecting much different this time round. The issue is already complicated by the never-ending budget pressure at the MoD. According to the National Audit Office, the government's financial watchdog, the MoD already has a financial black hole for its equipment program of between £3 and £13 billion, or as much as $16 billion. John Louth, an independent defense analyst in the U.K., said one of the big challenges facing the MoD will be putting the procurement roadmap back together post COVID-19. “One of the real challenges will be re-profiling a schedule for procurement," Louth said. Everything is slipping to the right, and re-profiling is going to be difficult, particuarly as many of the programs are interdependent on other programs. That poses a large and difficult challenge within a restricted budget." The economic impact of the COVID-19 pandemic is likely to make more difficult allocation of cash to its various departments and ministeries in the next comprehensive spending review. That's not withstanding the fact that MoD personnel — nearly 3,000 at the last count — have been lauded for their excellent performance assisting the National Health Service and others, carrying out tasks ranging from delivering oxygen to hospitals to setting up and running command and control centers. In particular the MoD has been widely praised for rapidly constructing several field hospitals for COVID-19 sufferers, including a 4,000 bed facility at the Excel Centre in London. The site is well known to defense contractors, as it's the venue for the DSEI exhibition. The government announced last week it was pausing the integrated review to focus resources on the COVID-19 fight, without saying when the work would recommence. Wallace answered that question — twice. First he said the review would recommence next year; later he said the correct date was the end of this year, but he was seeking clarity on the exact timing. That decision will be taken by the Cabinet Office who are leading the review. They had previously ordered the review, which was initiated after Prime Minister Boris Johnson won the general election last December, be completed by July. That was a date many analysts and politicians, including the defense committee, thought was risky. “This [the delay] is welcome news. I want a longer period for the integrated review. I want us to examine our place in the world, especially post COVID. It's going to be a different world,” he said. Wallace, an ex-British Army officer, said the number one threat is lack of resilience. "I suspect it will be higher up the agenda as a result of the virus,” he said. The defense secretary said that unlike countries such as France, Britain wasn't bringing forward a number of programs to protect the industrial base. “We are though speaking to industry to ensure their cash flow is continuing. There is a lot of work on the books that we would like to keep going,” he told the committee. One industry executive who asked not to be named said, “cash is not an issue yet, but I'm prepared for that to happen. I'm bracing for extended credit being taken by our customers, but I haven't seen it yet.” The virus has had an impact on a number of major defense programs in the U.K., as people have been ordered to work at home or, if that's not possible, adopt social distancing requirements in the workplace. The impact that might have on defense suppliers ability to meet their contractual obligations, and subsequently their financial viability and and that of the supply chain, has been recognized by the government . A series of actions relating to paying suppliers has been in place since late March, with MoD procurement authorities advised to support suppliers in a range of ways to maintain cash flow. This includes forward ordering, payment in advance, interim payments and payment on order rather than receipt. The scheme has been well received by industry here. The executive said he applauded the government for its swift action, but acknowledged the challenge remains for protecting employment and cash flow. The executive did say though that more clarity was needed from the government over the availability of initiatives like the Corona Business Interruption Loan scheme for defense exporters. Wallace named BAE's F-35 and nuclear submarine activities as programs where the balance between COVID restrictions to keep workers safe and keeping production and cash flow moving were vital. “It's really important that we continue some work that's absolutely key. We also need to help these firms to get through the process, because cash flow is really important to their survival,” said Wallace. But it's not easy keeping your distance from colleagues if you are trying to build something like a nuclear submarine. As such, Wallace said submarine building activities in the U.K. had some of the highest absentee rates in the sector. BAE employs around 9,000 people at its nuclear submarine yard at Barrow in northwest England where it is building Astute-class attack submarines and working on the Dreadnought class of Trident nuclear missile boats. About 4,000 of the staff are working from home with over 1,100 employees now working on site – up from 800-900 last week. A BAE spokesperson said the employees were supporting critical work at the yard. Last week the company reported that HMS Audacious, its latest attack submarine to be built for the Royal Navy, had left the yard and was heading to the submarine base on the Clyde in Scotland. https://www.defensenews.com/global/europe/2020/04/23/uk-defense-plans-could-take-major-hit-from-coronavirus-fallout/

  • Ce qui a changé entre l’échec du Gripen et aujourd'hui

    8 janvier 2020 | International, Aérospatial

    Ce qui a changé entre l’échec du Gripen et aujourd'hui

    Avions de combat : Le PS, les Verts et le GSsA lancent ce mercredi le référendum contre l'achat de nouveaux jets. Ils étaient parvenus à couler le Gripen en 2014. La situation de départ est cette fois-ci différente. Ce 18 mai 2014, les bouchons de champagne avaient sauté au stamm de la gauche, à quelques pas de la gare de Berne. Au terme d'une campagne acharnée qui a même fait ensuite l'objet d'un documentaire, «La bataille du Gripen», de Frédéric Gonseth, 53,8% des votants avaient refusé d'acheter 22 avions de combat Gripen pour une somme de 3,126 milliards de francs. Tous les cantons romands avaient dit non. Cette année, potentiellement en septembre, les citoyens suisses devraient à nouveau se prononcer sur l'achat d'avions de combat. Le Parti socialiste, le Parti écologiste et le Groupe pour une Suisse sans armée (GSsA) lancent le référendum ce mercredi contre l'arrêté de planification qui prévoit d'investir 6 milliards de francs pour acheter de nouveaux jets. Les fronts sont les mêmes qu'en 2014, mais le contexte a changé. Un vote sur le principe et pas sur un type d'avion En 2014, le choix d'acheter le Gripen E, modèle en cours de développement, avait suscité la critique et la méfiance. Les détracteurs de ce jet parlaient d'avions de papier. Des membres des forces aériennes s'étaient aussi étonnés, en coulisses, du choix du jet suédois, alors que d'autres avions avaient obtenu de meilleures notes lors de l'évaluation. L'analyse Vox qui avait décortiqué le scrutin avait ainsi montré que 13% des votants avaient mis un non dans l'urne par rejet du Gripen. Cette fois-ci, les Suisses n'auront plus à se prononcer sur un type d'avion. Une seule question leur sera posée: acceptez-vous de payer 6 milliards de francs pour acheter de nouveaux avions de combat? Le Conseil fédéral ne sélectionnera le modèle qu'après le scrutin, sur la base des évaluations conduites par ArmaSuisse. A noter que dans tous les cas, la Suisse n'achètera pas le Gripen: le constructeur Saab a renoncé dès lors qu'il a été écarté des essais en vol et au sol qui ont eu lieu l'an dernier sur la base militaire de Payerne. Il reste ainsi quatre jets en course: le Rafale de Dassault, l'Eurofighter d'Airbus, le Super Hornet de Boeing et le F-35 de Lockheed Martin (voir vidéos de présentation dans l'encadré). Viola Amherd à la place d'Ueli Maurer Gaffes en série, couacs de communication, allusions malheureuses: la campagne de 2014 avait été cauchemardesque pour le ministre de la Défense de l'époque, Ueli Maurer (UDC). Six pour cent des votants avaient déclaré, lors de l'analyse Vox, avoir dit non en raison de cette campagne cacophonique. Les électeurs du centre, qui se reconnaissent dans des partis traditionnellement acquis à l'armée, avaient joué un rôle déterminant. Aujourd'hui, c'est une centriste, Viola Amherd, qui est à la manoeuvre. La conseillère fédérale PDC met un accent particulier sur la transparence dans les achats de l'armée. Elle a aussi souhaité amener une caution à la fois scientifique et militaire à ce dossier. Elle a ainsi invité l'astronaute Claude Nicollier à rendre un second avis sur le rapport Air2030. La popularité et l'image de la Haut-Valaisanne joueront un rôle lors de la campagne. De nouveaux avions sinon rien? En 2014, le Gripen ne devait remplacer que la flotte des F-5. Les 32 F/A 18 devaient être remplacés dans un second temps. Aujourd'hui, les 30 avions de combat F/A-18 restants sont vieillissants. Il est prévu de prolonger leur durée de vie jusqu'en 2030. Ainsi, la gauche ne pourra pas déployer avec autant d'impact l'un de ses arguments clés de 2014: on peut dire non au Gripen, il reste des avions pour l'armée. A l'époque, selon l'analyse Vox, 24% des détracteurs du Gripen se disaient en effet partisans d'une armée forte, mais ils estimaient aussi que l'achat de ce jet n'était pas une nécessité vitale. Le message sera différent lors de la future campagne. Viola Ahmerd et ses alliés pourront marquer des points en affirmant que le scrutin déterminera la survie des forces aériennes. Fondamentalement, les référendaires ne contestent cela dit pas la nécessité d'avoir des avions mais uniquement pour faire la police du ciel. Ils estiment qu'on peut acheter moins et à un meilleur prix. Leur capacité de convaincre avec cet argument s'annonce déterminante. Des mesures compensatoires plus basses C'est une autre différence par rapport au vote de 2014. Les affaires compensatoires - ces contre-prestations exigées de la part du constructeur - se monteront à 60% du prix d'achat des avions. Pour le Gripen, c'était 100%. Sur ce point, la ministre Viola Amherd, critique face aux surcoûts engendrés par ces compensations, s'est imposée au parlement. Les entreprises romandes qui craignaient de ne pas voir la couleur des affaires compensatoires si elles étaient réduites à 60% se disent néanmoins satisfaites: les collaborations seront possibles au-delà du secteur de la sécurité. Elles s'étendront à onze autres domaines, dont celui des machines, de l'électronique ou encore de l'horlogerie. https://www.24heures.ch/suisse/change-echec-gripen-aujourdhui/story/22057626

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