6 décembre 2023 | International, Terrestre

Stalled F-35 upgrades will delay next improvements, Wittman warns

The congressman also worries the latest TR-3 deadline of mid-2024 could slip further: “I want to be positive, but call me skeptical."

https://www.defensenews.com/air/2023/12/06/stalled-f-35-upgrades-will-delay-next-improvements-wittman-warns/

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  • Land Systems Integration Team Is Leader in Model-Based Systems Engineering

    5 août 2019 | International, Naval

    Land Systems Integration Team Is Leader in Model-Based Systems Engineering

    By C. Michaela Judge, Naval Information Warfare Center Atlantic Public Affairs CHARLESTON, S.C. (NNS) -- The Land Systems Integration (LSI) Division at Naval Information Warfare Center (NIWC) Atlantic continues to be an enterprise leader in Model-Based Systems Engineering (MBSE) for their work on land systems modernization and integration. MBSE is an engineering approach that utilizes a common, digital tool suite allowing all team members – from engineer to sponsor – to have awareness, line-of-sight and an understanding of the interaction between the various moving parts across the systems engineering and project lifecycle. LSI's Vehicular Technology Transition (VTT) team incorporates the full range of MBSE techniques into their systems engineering projects to support the Marine Corps and has had great success in continuing this approach in their daily work. “What makes LSI and our team specifically successful is the depth of knowledge in implementation of using the MBSE Tool Suite,” said Tim Turner, VTT team lead. “Our engineering work isn't radically different than any other engineering groups across the Command; it's how we're putting the data in the system and making it transparent to everyone that needs to have access to it.” Though engineers have been performing systems engineering in some capacity for decades, using this model-based approach provides an added advantage to deliver effective and timely solutions to the warfighter. “Our MBSE Tool Suite is a set of seamlessly integrated engineering lifecycle management tools that work together as one,” said Jacob Witmer, VTT team Military GPS User Equipment (MGUE) project lead. “We use these tools to manage requirements and architectures, plan projects, track changes, manage quality, and provide an enterprise library management system where you catalog, organize, use, reuse, manage, and report on any type of software, technology, or business asset.” In the vehicle transition domain, the VTT team utilized MBSE techniques to solve real-world challenges for the warfighter. Most recently, they used MBSE to conduct global positioning system (GPS) integration work conducted on the Joint-Light Tactical Vehicle, the MGUE Program's lead platform. “When we look at all of the people our team has to work with on this integration project, we have to manage a lot of different data, to include where the trucks are manufactured, where GPS is managed, the performance level of the GPS card, the truck integration and more,” said Witmer. “There are a lot of players, managing a lot of data in a lot of different formats from different geographic parts of the country. That's really what the MBSE Tool Suite is designed to do – manage, connect and link the data to see how they impact each other.” One cost-avoidance benefit of using the MBSE Tool Suite, in time and man-hours, includes the ability to quickly build reports. “We can build 150-page project requirements documents in three minutes because the data is already in the Tool Suite,” said Ryan Longshore, VTT team technical lead. “There is an investment in time and energy upfront in loading the data, but a report that would take 30 to 90 days is done in a matter of minutes and everything from that project is captured in the report.” The team's use of MBSE is not only essential to connecting and maintaining data across a project, but also a necessary resource in developing physical models and solutions in a fraction of the time previously needed to fulfill a warfighter requirement. “Our team works within the Systems Integration Laboratory (SIL) to design and test on multiple vehicular platforms,” said Turner. “The lab allows us to execute MBSE across all team functions, from mission thread to risk analysis or program management.” The team maintains physical models for all of the vehicle platforms they support. When a requirement from a sponsor arrives, the team can use tools within the SIL to design and print a three-dimensional piece of hardware and test it on an existing model before they touch a physical vehicle. The team conducts engineering, mechanical and software-related integration testing and design work all within the laboratory. “It's all about testing upfront, learning upfront, failing faster and learning from it and moving on and improving on the design,” said Turner. As the team designs and tests within the lab, they also update the MBSE Tool Suite is to capture lessons learned, integration challenges and real-time project data for all team members to access. “The beauty of the suite being so integrated is that it doesn't matter what type of systems engineering methodology a project uses, the tools can be tailored to meet a myriad of engineering processes and organizing the data by methodology saves countless hours in digging around trying to find historical artifacts,” said Witmer. The team can now complete an integration project that previously took 18 to 36 months as quickly as six to nine months, without sacrificing quality, thanks to the value of MBSE. With VTT and other teams reaping the benefits of MBSE, NIWC Atlantic created a training and workforce development path to work toward a Command-wide adoption of this method. Communities of interest, industry engagements and training events on MBSE methods are a few of the efforts implemented to date. The VTT uses these training approaches, to a smaller-scale, to continue to encourage MBSE implementation and help employees understand the power of using a model-based approach to apply agility in executing warfighter solutions. “We're seeing the benefits and through MBSE my team has the flexibility to fail fast and learn a lot upfront,” said Turner. The team's success with the MBSE Tool Suite is a Command-wide example of how the transparency and connectivity of engineering data help to provide integration solutions to NIWC Atlantic customers with a high confidence of success. As a part of Naval Information Warfare Systems Command, NIWC Atlantic provides systems engineering and acquisition to deliver information warfare capabilities to the naval, joint and national warfighter through the acquisition, development, integration, production, test, deployment, and sustainment of interoperable command, control, communications, computer, intelligence, surveillance, and reconnaissance, cyber and information technology capabilities. https://www.navy.mil/submit/display.asp?story_id=110447

  • Tank makers steel themselves for Europe’s next big land-weapon contest

    26 juin 2018 | International, Terrestre

    Tank makers steel themselves for Europe’s next big land-weapon contest

    Sebastian Sprenger PARIS ― European manufacturers of armored vehicles are jockeying for position in what looks to be the most expensive land program for the continent in decades. The industry activity follows plans by France and Germany, reiterated this month, to build a Main Ground Combat System that would replace the current fleet of Leopard 2 and Leclerc tanks. While conceived as a two-country project for now, the hope is to develop a weapon that other European land forces will also pick up. Details remain murky about exactly what the new vehicles must be able to do, though the job description includes something about manned-unmanned teaming. Perhaps that's why officials chose an amorphous name for the project, as it could be anything from a nimble, autonomous fighter to the type of human-driven steel beast of today's armies. The target date for introducing the new platform is set at 2035, and Germany has picked up the lead role for the project both on the government and the industry side. KNDS, the Franco-German joint venture of Krauss-Maffei Wegmann and Nexter, put the program on the radar of visitors of the Eurosatory trade show in Paris earlier this month. The companies mated the chassis of a Leopard 2 tank to a Leclerc turret ― and voila, a European Main Battle Tank was born. Company officials stressed that the hybrid behemoth is only a stepping stone on the way toward a full-blown European tank offering under the Main Ground Combat System banner. But the product might interest Eastern European nations looking to divest their Russian legacy fleets for a good-enough, Western-made tank that ― presumably ― doesn't break the bank. The marriage of KMW and Nexter saves the two companies from having to compete against one another for the next-generation tank. It also creates the appearance that Paris' and Berlin's love for a future tank is happily echoed by their industries. “Let's assume we wouldn't have joined forces,” said Frank Haun, the CEO of KMW. Both he and his Nexter counterpart, Stephane Mayer, would have had to lobby their respective governments for a purely national solution, pulling the old argument of keeping jobs in the country, Haun said. The two companies hailed an announcement last week about a new Franco-German deal aimed at examining possible program options for the future tank. “The Letter Of Intent signed yesterday is a significant step forward in the defense cooperation between the two countries and in Europe,” reads a June 20 statement. “This close cooperation was the key motivation for the foundation of KNDS in 2015, where Nexter and KMW cooperate as national system houses for land systems.” But the binational industry team is far from the only game in town. Take Rheinmetall, for example, which is KMW's partner in the Leopard program. Company executives at the Paris weapons expo were tight-lipped about their strategy toward the Main Ground Combat System, or MGCS. But it's probably a safe bet to presume the Düsseldorf, Germany-based firm won't cede a market of tens of billions of dollars without a fight. “Come back and see me in December in Unterlüß,” Ben Hudson, head of the company's vehicle systems division, told Defense News during an interview in Paris. He was referring to a small German town one hour south of Hamburg where Rheinmetall runs a manufacturing plant. Hudson declined to say more about what the company would roll out at that time. “I can't mention it just yet,” he said. “Expect more surprises in the future. We're already working on some other things in the secret laboratories of Rheinmetall.” Either way, officials were eager to note that KNDS, despite its industrial alignment alongside the two governments in charge, is only one bidder in a field that has to fully emerge. “I think there is still a lot of water to flow under the bridge on this program, as it is only in its early days. However, with the technology in the Rheinmetall Group, we have a significant interest in playing a key role in MGCS,” Hudson said. He argued that developing the next-generation tank must begin with considering the “threat” out there, namely the Russian T-14 and T-15 tanks, which are based on a common chassis dubbed Armata. Those vehicles' characteristics, or at least what is known about them, dictate “high lethality” be built into the future European tank, according to Hudson. “How do you defeat a tank that has four active defense systems on it?” he asked. And then there is General Dynamics European Land Systems, the Old World's offspring of the U.S. maker of the Abrams tank and Stryker vehicle. The company is careful to note its European roots: a consolidated mishmash of formerly independent armored-vehicle makers from across the continent. Manuel Lineros, vice president of engineering, told Defense News that the company's Ascot vehicle will be the GDELS offering for the European next-gen tank. Advertised for its mobility and weighing in at roughly 45 tons, the tracked vehicle falls in the class of infantry fighting vehicles, putting it one notch below the heaviest battle tank category. “I understand the battlefield has changed,” Lineros said in an interview at Eurosatory. “We have to abandon the ideas of a combat vehicle versus a classic main battle tank. Everything is so mixed up now.” Whatever the Ascot lacks in sheer mass against projectiles aimed at its shell could be compensated with an active protection system and the ability to move quickly on the battlefield, argued Lineros. “We have to be flexible in this way of interpreting the requirements.” That includes defending against drone swarms, which could become the peer-to-peer equivalent of improvised explosive devices designed to rip open the underbellies of vehicles, he said. Unlike the recent countermine vehicle architecture, that type of aerial threat could mean the top surface of future vehicles will be a weak point requiring special protection, he added. Though adding armor plates remains the industry's first instinct in responding to new threats, Lineros said there is a limit to what he called an “addiction” to steel. “More and more we'll be moving out of this sport.” https://www.defensenews.com/digital-show-dailies/eurosatory/2018/06/25/tank-makers-steel-themselves-for-europes-next-big-land-weapon-contest/

  • Cash in hand for armored vehicles, Italy weighs its clout in Europe

    29 mai 2024 | International, Terrestre

    Cash in hand for armored vehicles, Italy weighs its clout in Europe

    Officials in Rome will soon pick industry alliances for a multibillion-dollar infantry fighting vehicle and, potentially, Europe's next-gen tank.

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