December 13, 2019 | International, Land
By SYDNEY J. FREEDBERG JR.
WASHINGTON: Just outside Detroit, home of the muscle car, the Army's put together a powertrain as potent as three Trans Ams strapped together — with an electric stealth mode that sounds more like a lawnmower than a tank. The 1,000-horsepower Advanced Powertrain Demonstrator packs more diesel horsepower in less space than current engines, along with a 160-kilowatt generator that can power advanced electronics – like a drone-killing laser or anti-missile defenses – and even move an entire 50-ton vehicle for brief periods.
Now installed in an M2 Bradley hull for testing, the current version of the APD can move war machines up to 50 tons, but it's meant to be easily modified for larger or smaller vehicles.
“Each of the pieces can be scaled” up or down, said John Tasdemir, chief of the power & mobility branch of the Army's Ground Vehicle Systems Center (formerly TARDEC) in Warren, Mich. “It could not just fit a Bradley, it could fit a future vehicle, [or] it could fit a legacy vehicle as well.”
Compact enough to fit into the notoriously cramped Bradley, the 1,000-horsepower Advanced Powertrain Demonstrator produces 48 percent more horsepower than the most-upgraded Bradley variant and 67 percent more than the standard 600-hp model. The engine could also fit the turretless utility variant of the Bradley, the Armored Multi-Purpose Vehicle, or, with some rearrangement of the components, the M109A7 Paladin howitzer. And since the design is modular, the APD could be scaled down to 500 hp – potentially powering the more tank-like of the Robotic Combat Vehicles the Army's now developing – or up to 1,500 hp – enough to drive the 70-ton M1 Abrams main battle tank.
Another logical candidate for APD technology is the Optionally Manned Fighting Vehicle now in development to replace the Bradley. Fitting the new vehicle would require some redesign, said one of Tasdemir's engineers, Mike Claus, but if they could optimize the APD components for an all-new hull without the awkward compromises of the Bradley, the resulting design could be “way more compact.”
How It Works
Why is it important to be compact? Well, the heaviest part of a combat vehicle is its armor. The weight of the armor, in turn, is the product of its thickness and the surface area it has to protect. The bulkier you make your vehicle – the greater the “volume under armor,” in Army terms – the more tons of armor you need to get the same level of protection.
To make the APD more compact, it needs to be more efficient. To do that, the Army and its contractors went to work on every piece of the powertrain – for example:
That electrical power is as important for modern combat vehicles as diesel horsepower. During the Iraq War, the Cold War-vintage Bradleys got upgraded with so many advanced sensors, communications networks, display screens, and radio jammers to deactivate roadside bombs that they couldn't power everything at once.
Now, worried about Russia's vast arsenal of RPGs and anti-tank missiles, the Army is pushing to install so-called Active Protection Systems on its armored vehicles, which use compact radars to track incoming projectiles – a big power drain – so miniature missile launchers can shoot them down. And for the near future, the Army is highly interested in high-powered laser and microwave weapons, albeit primarily against fast-moving, fragile targets like drones and rockets rather than heavily armored vehicles like tanks.
The Ground Vehicle Systems Center plans to test the APD powertrain on a stationary Bradley hull through this coming March, by which point they expect to have demonstrated what's called Technological Readiness Level (TRL) 6. Then they'll fully integrate the APD into a drivable Bradley, the Advanced Mobility Experimental Prototype (AMEP), which will be tested to TRL 7 or 8 – the highest level possible for a prototype – in 2022.
The next year, 2023, the Army will hold the final competition to build the Bradley replacement, the OMFV.
https://breakingdefense.com/2019/12/army-revs-high-tech-tank-engine
May 17, 2023 | International, Land
The recent delivery of the IBCS Integrated Fire Control Network (IFCN) relays supports the WIS?A program?s fielding schedule, which is the first foreign military sale of IBCS
December 3, 2021 | International, Aerospace
'We have the green light from Germany, from Italy and from France, and we are in the waiting phase, basically every day now, on Spain,' one company executive said.
August 14, 2018 | International, Aerospace, Naval, Land, C4ISR
By Ellen Nakashima The Pentagon has a new goal aimed at protecting its $100 billion supply chain from foreign theft and sabotage: to base its weapons contract awards on security assessments — not just cost and performance — a move that would mark a fundamental shift in department culture. The goal, based on a strategy called Deliver Uncompromised, comes as U.S. defense firms are increasingly vulnerable to data breaches, a risk highlighted earlier this year by China's alleged theft of sensitive information related to undersea warfare, and the Pentagon's decision last year to ban software made by the Russian firm Kaspersky Lab. On Monday, President Trump signed into a law a provision that would bar the federal government from buying equipment from Chinese telecommunications firms Huawei and ZTE Corp., a measure spurred by lawmakers' concerns about Chinese espionage. “The department is examining ways to designate security as a metric within the acquisition process,” Maj. Audricia Harris, a Pentagon spokeswoman, said in a statement. “Determinations [currently] are based on cost, schedule and performance. The department's goal is to elevate security to be on par with cost, schedule and performance.” The strategy was written by Mitre Corp., a nonprofit company that runs federally funded research centers, and the firm released a copy of its reportMonday. “The major goal is to move our suppliers, the defense industrial base and the rest of the private sector who contribute to the supply chain, beyond a posture of compliance — to owning the problem with us,” said Chris Nissen, director of asymmetric-threat response at Mitre. Harris said the Pentagon will review Mitre's recommendations before proceeding. She added that the Department of Defense, working with Congress and industry, “is already advancing to elevate security within the supply chain.” Testifying to Congress in June, Kari Bingen, the Pentagon's deputy undersecretary for intelligence, said: “We must have confidence that industry is delivering capabilities, technologies and weapon systems that are uncompromised by our adversaries, secure from cradle to grave.” Security should be seen not as a “cost burden,” she told the House Armed Services Committee, “but as a major factor in their competitiveness for U.S. government business.” The new strategy is necessary, officials say, because U.S. adversaries can degrade the military's battlefield and technological advantage by using “blended operations” — hacking and stealing valuable data, manipulating software to sabotage command and control systems or cause weapons to fail, and potentially inducing a defense firm employee to insert a faulty component or chip into a system. “A modern aircraft may have more than 10 million lines of code,” Mitre's report said. “Combat systems of all types increasingly employ sensors, actuators and software-activated control devices.” The term “Deliver Uncompromised” grew out of a 2010 meeting of senior counterintelligence policy officials, some of whom lamented that the Defense Department was tolerating contractors repeatedly delivering compromised capabilities to the Pentagon and the intelligence community. Addressing the security issue requires greater participation by counterintelligence agencies, which can detect threats against defense firms, the report said, and ideally, the government should establish a National Supply Chain Intelligence Center to monitor threats and issue warnings to all government agencies. Ultimately, the military's senior leaders bear responsibility for securing the supply chain and must be held accountable for it, the report said. The Defense Department, although one of the world's largest equipment purchasers, cannot control all parts of the supplier base. Nonetheless, it has influence over the companies it contracts with as it is the principal source of business for thousands of companies. It can shape behavior through its contracts to enhance supply-chain security, the report said. Legislation will be needed to provide incentives to defense and other private-sector companies to boost security, Mitre said. Congress should pass laws that shield firms from being sued if they share information about their vulnerabilities that could help protect other firms against cyberattacks; or if they are hacked by a foreign adversary despite using advanced cybersecurity technologies, the report said. Contractors should be given incentives such as tax breaks to embrace supply chain security, the report suggested. The Department of Homeland Security is addressing the security of the information technology supply chain through its newly established National Risk Management Center. “What we're saying is you should be looking at what vendors are doing to shore up their cybersecurity practices to protect the supply chain,” said Christopher Krebs, DHS undersecretary for the National Protection and Programs Directorate. The National Counterintelligence and Security Center, an agency of the Office of the Director of National Intelligence that coordinates the government's counterintelligence strategy, said in a report last month that software-supply-chain infiltration has already threatened critical infrastructure and is poised to endanger other sectors. According to the NCSC, last year “represented a watershed in the reporting of software supply chain” attacks. There were “numerous events involving hackers targeting software supply chains with back doors for cyber espionage, organizational disruption or demonstrable financial impact,” the agency found. https://www.washingtonpost.com/world/national-security/the-pentagon-is-rethinking-its-multibillion-dollar-relationship-with-us-defense-contractors-to-stress-supply-chain-security/2018/08/12/31d63a06-9a79-11e8-b60b-1c897f17e185_story.html?noredirect=on&utm_term=.265ce85b6eb1