Pressed to prove value of amphibious ships, Marines seek to add drones

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  13 mai 2020 | International, Naval, C4ISR

  Failure to communicate: US Navy seeks faster data transfers amid Arctic ice

  Andrew Eversden WASHINGTON — Research in the Arctic Ocean is no small feat. The area can prove inaccessible at times, and sensors can fail to communicate data from under the ice or get crushed by slabs of ice. But with the Arctic getting warmer and ice melting at an accelerated rate, the U.S. Navy is preparing to operate in newly available waterways. To do that effectively, the service knows it will take intense research to create durable, innovative solutions that can withstand harsh conditions, while also relaying data to researchers. “If the Navy's thinking about having to run operations up there with submarines, surface vessels and aircraft, you really need to understand that operational environment,” Scott Harper, the Office of Naval Research's program manager for Arctic and global prediction, told Defense News in a May 4 interview. “Where is that sea ice and how quickly is it retreating? And what is it doing to the upper water column in the ocean? "To really understand all that, you need to have a lot of observations.” Navy and academic researchers are working together to improve the service's forecasting models in the Arctic. The Navy currently has research buoys, sensors and other technology floating in the water to track a variety of metrics: waves, atmospheric and water circulation, sea ice thickness and cover, speed at which the ice moves, and several other factors. All those metrics factor into Arctic forecasting. In order to improve its forecasting capabilities, the Navy needs to improve its numerical models, or complex equations used in predictions. But to do that, the service needs more up-to-date data. “These numerical models are kind of like balancing your checkbook,” Harper said. “You need to start with what your current checking account balances [to[ if you're going to predict what it's going to be at the end of the month. And so even if you had a perfect numerical model that you could use to make a forecast, if you don't know what the conditions are right now, you're not going to be able to forecast what the future state is going to be.” To do this, the Navy wants to more quickly collect data through an effort called the Arctic Mobile Observing System, or AMOS. The program aims to create near-real-time data transmission of the sea condition under the ice, and communicate that information to the Navy via satellite. “You have satellites that can look down at the surface of the Arctic Ocean and the sea ice conditions,” Harper said. “But what we don't have [is] the ability to look under the ice and understand what the ocean conditions are, and that's what we're really trying to enable with Arctic Mobile Observing System prototype.” The AMOS program has deployed gliders underneath the sea that are collecting and storing data about the oceanic conditions under the ice, and tracking the location of frozen water using acoustics. In a few months, Harper said, researchers will send an icebreaker to the Arctic and gather the data collected by the gliders. The Office of Naval Resarch, however, would like to bypass the multi-month delay involved in collected the data. To do so, the office plans to enable two-way communication so underwater sensors can communicate data via floating buoys in the ice that, in turn, communicate the data via satellites back to the Naval Oceanographic Office. The project is currently two years into the five-year project. According to the project website, it's slated to end in fiscal 2023 with the recovery and evaluation of the initial prototype in the late summer of 2023. Harper said the project's biggest success has been the navigation system that's currently working underneath the ocean surface. “The fact that we can put sensors out that will know where they are without having to come to the surface to get a GPS fix — because they can't come to the surface because there's sea ice there for nine months out of the year," he said. "That's a big win.” Another critical component to the real-time data collection are the buoys that ultimately must be able to survive the cruel nature of Arctic ice. The AMOS team has deployed prototypes of “ice-hardened” buoys that survived “multiple months” in the Arctic environment, Harper said, paving the way for a fully equipped communications buoy that can talk with underwater sensors. “You can go out there and you can put your sensors in the ice, but a lot of times they'll fail,” Harper said. “And they'll fail because they'll get crushed in the ice or tipped over or toppled by changing ice conditions. And so the ability to deploy a buoy that is robust enough to survive the sea ice is one of the technological hurdles to doing this.” https://www.c4isrnet.com/smr/frozen-pathways/2020/05/11/failure-to-communicate-us-navy-seeks-faster-data-transfers-amid-arctic-ice/

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  4 septembre 2024 | International, Terrestre

  Expect a $833B defense budget for FY25, but not on time, lawmaker says

  Rep. Rob Wittman said he expects a short-term budget deal for federal spending to be finalized before the end of the month.

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  23 juin 2020 | International, Naval

  With challenges aplenty, Europe’s navies are coming to grips with high-end warfare

  By: David B. Larter WASHINGTON — The former head of the U.S. Navy said in June testimony that as the service grapples with establishing the right type of force, it must account for the degraded capabilities of its allies, hinting at the once substantial Cold War-era European navies. “In my mind [there's] been an over-fixation on the total number of ships as opposed to the nuance numbers of specific types of ships that support viable operational plans,” retired Adm. Gary Roughead, former chief of naval operations, said before the Seapower and Projection Forces Subcommittee of the House Armed Services Committee. “There's also the need to understand just how small our allied navies have become, and in the past we have always looked to our allies to support us, but those navies are extraordinarily small.” NATO has for years counted on the U.S. Navy as the centerpiece of its maritime forces, with the individual European navies serving as augmenting and supporting forces. And in the post-Cold War era, Europe's navies have focused on low-end missions like counterterrorism and counter-piracy. And that has led to a precipitous decline in naval power available to surge in the event of a high-end conflict. In a 2017 study, the Center for a New American Security found that Europe's combat power at sea was about half of what it was during the height of the Cold War. “Atlantic-facing members of NATO now possess far fewer frigates — the premier class of surface vessels designated to conduct [anti-submarine warfare] ASW operations — than they did 20 years ago,” the study found. Where they collectively had about 100 frigates in 1995, that number hovers at 51 today. “Similarly, these nations had, in 1995, 145 attack submarines — those dedicated to anti-shipping and anti-submarine warfare missions — but that number has plummeted to a present low of 84,” the study found. But with the U.S. increasingly focused on Asia and amid tension within the alliance, Europe is coming to grips with the need to grow its forces and regain high-end capabilities it once had — a realization that also grew out of Russia's 2014 annexation of Crimea from Ukraine. “Throughout the 1990s, the focus was low-end missions: counter-piracy, counterterrorism, migration, search and rescue,” said Sebastian Bruns, head of the Center for Maritime Strategy and Security in Kiel, Germany. “And they did so with the legacy platforms of the 1980s and 1990s. You know, sending an ASW frigate to fight piracy, well that's not a lot of bang for your buck. “But 2014, that's really the turnaround. I can't think of any European nation that's not on board with modernizing and growing their navies. But the long-lead times and having to replace the legacy units, it just takes a damned long time to turn the ship around.” But an unfortunate side effect of the long-lead times involved in force design — sometimes a decade or more — is that pre-2014 ship designs that are coming into service now are ill-suited for the high-end fight, Bruns said. The prime example of this mission mismatch is Germany's 7,200-ton Baden-Württemberg-class frigate. It began entering service in 2019, but is designed for low-end operations. “They were designed in the 2000s — they even call it a ‘stabilization frigate' — and they're coming online at a time where the German Navy needs them for presence, but they don't have the kind of teeth you'd expect for a 7,000-ton frigate,” Bruns said. “They're really capable for presence and maritime security operations, but of course that's not so much the world we live in anymore.” But new, more advanced frigates are starting to filter into the market. For example, in 2017, France's Naval Group launched a five-hull intermediate air defense frigate program designed to intercept air threats with the Aster 15 and Aster 30 missiles. And in January, the German Navy announced it had hired Dutch shipbuilder Damen to build at least four new MKS 180 frigates — a 9,000-ton ship designed to operate in waters with ice formations in a nod to the renewed competition in the Arctic. Payloads over platforms It's not just new frigate designs that show Europe gradually upping its game. Similar to the track the U.S. Navy has taken in fielding the Naval Strike Missile on its littoral combat ships and the Marine Corps' approach to fielding it as a shore battery, European navies have begun to upgrade their ships' systems in preparation for a high-end fight, said Jeremy Stöhs, a naval analyst who authored the book “Decline of European Naval Forces.” “What we see now is since 2014 the focus is much more on sea control, lines of communication, territorial defense,” Stöhs said. “But because of the long-lead times, it is not just the ships they're building; it's the sensor suites, midlife upgrades, focusing again on sea-denial capabilities.” Countries like the Black Sea and Scandinavian states are investing in anti-ship missiles and shore-based missile systems, he added, whereas a lot of those weapons were disbanded in the 1990s. In 2016, for example, Sweden announced it was fielding coastal batteries with Saab's RBS-15 anti-ship missile to defend its Baltic coast for the first time since 2000. The Franco-British Sea Venom anti-ship missile is being designed to launch from a helicopter such as the U.K.'s Wildcat. It recently passed its first firing trial. The missile is currently designed for small, fast-moving vessels up to Corvette-sized warships. In the Netherlands, the government announced in 2018 that their De Zeven Provinciën-class frigates would be ditching the venerable Harpoon missile for a new, more advanced surface-to-surface missile by 2024. Evolving threat, evolving politics Europe's evolution toward more high-end naval battles in many ways mirrors the United States' own pivot away from wars in the Middle East and Asia. But it's also informed by changing politics. “I'm seeing European navies pivot back to the basics: How do we handle the GIUK [Greenland, Iceland and the United Kingdom] gap? How do we patrol the North Atlantic? Anti-submarine warfare, convoy escort, anti-surface warfare: They are starting to come back to that,” said Jerry Hendrix, an analyst with Telemus Group and a retired Navy captain. “And as you are starting to see the new heavy German designs, they're coming back to focusing on a maritime challenger.” But with this evolution has come a realization of Europe's shortcomings and just how dependent those navies have been on the U.S. for some core capabilities. “They're starting to think about a naval force without the US present,” Hendrix said. “[German Chancellor] Angela Merkel has talked about the need for Europe to start thinking about going its own way. And by the way, I don't think that's a bad thing. I do see the interests on the continent and the U.S. going in different directions.” But a European naval construct without the U.S. would prove challenging, as many countries based their investments on the idea of a shared responsibility, with the U.S. as the main high-end capability provider, said Bryan Clark, a senior fellow at The Hudson Institute. “NATO, in theory, still has the NATO strategic concept where different countries were going to specialize in different capabilities, which led to the Finns and Swedes really embracing amphibious capabilities for small-scale, special operations forces insertion. The Brits and Italians focused on ASW. But without the U.S. acting as the strategic centerpiece, the strategic concept starts to fall apart. “The concept assumes you have someone that has a multimission capability that you can augment, as opposed to: ‘We're going to pull all this together without the U.S. from a bunch of disparate countries with disparate capabilities.' ” That situation means any NATO action with just European nations would need a lot of participation, he said. “Before, if you had just the U.S. and three or four nations participating, you'd have a pretty robust, multimission capability” Clark said. “But without the U.S., you'd need half the alliance to contribute so as to not miss out on key mission areas.” And without the robust U.S. logistics system, countries would have to replace not just the high-end weapons and sensors, but much of the support infrastructure as well. That could mean even more downward pressure on how much capability Europe can bring to bear. “If you have to expend weapons or do extensive resupply or refueling, the whole model starts to break down,” Clark added. “The way the European navies are structured, they don't have this end-to-end capability to deliver on all the support missions as well. “So if they have to invest in a significant combat logistics force, with budgets for defense being limited, that's going to mean their navies will potentially become even smaller.” https://www.defensenews.com/smr/transatlantic-partnerships/2020/06/22/with-challenges-aplenty-europes-navies-are-coming-to-grips-with-high-end-warfare/