South Korea selects the Embraer C-390 Millennium

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  26 juin 2018 | International, Naval

  Future US Navy weapons will need lots of power. That’s a huge engineering challenge.

  David B. Larter WASHINGTON ― The U.S. Navy is convinced that the next generation of ships will need to integrate lasers, electromagnetic rail guns and other power-hungry weapons and sensors to take on peer competitors in the coming decades. However, integrating futuristic technologies onto existing platforms, even on some of the newer ships with plenty of excess power capacity, will still be an incredibly difficult engineering challenge, experts say. Capt. Mark Vandroff, the current commanding officer of the Carderock Division of the Naval Surface Warfare Center and the former Arleigh Burke-class destroyer program manager who worked on the DDG Flight III, told the audience at last week's American Society of Naval Engineers symposium that adding extra electric-power capacity in ships currently in design was a good idea, but that the weapons and systems of tomorrow will pose a significant challenge to naval engineers when it comes time to back-fit them to existing platforms. “Electrical architecture on ships is hard,” Vandroff said. Vandroff considered adding a several-megawatt system to a ship with plenty of power to spare, comparing it with simultaneously turning on everything in a house. “When you turn everything on in your house that you can think of, you don't make a significant change to the load for [the power company],” Vandroff explained. “On a ship, if you have single loads that are [a] major part of the ship's total load, [it can be a challenge]. This is something we had to look at for DDG Flight III where the air and missile defense radar was going to be a major percentage of the total electric load ― greater than anything that we had experienced in the previous ships in the class. That's a real technical challenge. “We worked long and hard at that in order to get ourselves to a place with Flight III where we were confident that when you turned things on and off the way you wanted to in combat, you weren't going to light any of your switchboards on fire. That was not a back-of-the-envelope problem, that was a lot of folks in the Navy technical community ... doing a lot of work to make sure we could get to that place, and eventually we did.” In order to get AMDR, or SPY-6, installed on the DDG design, Vandroff and the team at the DDG-51 program had to redesign nearly half the ship — about 45 percent all told. Even on ships with the extra electric-power capacity, major modifications might be necessary, he warned. “We're going to say that in the future we are going to be flexible, we are going to have a lot of extra power,” Vandroff said. “That will not automatically solve the problem going forward. If you have a big enough load that comes along for a war-fighting application or any other application you might want, it is going to take technical work and potential future modification in order to get there.” Even the powerhouse Zumwalt class will struggle with new systems that take up a large percentage of the ship's power load, Vandroff said. “Take DDG-1000 ― potentially has 80-odd megawatts of power. If you have a 5- or 6-megawatt load that goes on or off, that is a big enough percentage of total load that it's going to be accounted for. Electrical architecture in the future is still an area that is going to require a lot of effort and a lot of tailoring, whatever your platform is, to accommodate those large loads,” he said. In 2016, when the Navy was planning to install a rail gun on an expeditionary fast transport vessel as a demonstration, service officials viewed the electric-power puzzle as the reason the service has not moved more aggressively to field rail gun on the Zumwalt class. Then-director of surface warfare Rear Adm. Pete Fanta told Defense News that he wanted to move ahead with a rail gun demonstration on the JHSV because of issues with the load. “I would rather get an operational unit out there faster than do a demonstration that just does a demonstration,” Fanta said, “primarily because it will slow the engineering work that I have to do to get that power transference that I need to get multiple repeatable shots that I can now install in a ship.” https://www.defensenews.com/naval/2018/06/24/future-navy-weapons-will-need-lots-power-thats-a-huge-engineering-challenge/

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  3 juin 2019 | International, C4ISR

  Air Force awards $20M contract for new common ground system

  By: Nathan Strout The Air Force is one step closer to the creation of a new common platform for satellite command and control. The Air Force's Space and Missile Systems Center Braxton Technologies of Colorado Springs a $20 million contract May 17 to begin prototyping and integrating the new Enterprise Ground Services (EGS). The Air Force announced the deal in a May 31 press release. The purpose of EGS is to develop a common ground system and end user experience for all of the Air Force's upcoming satellite programs. Today, most military satellites have custom-built ground systems. Not only can that be expensive, it also makes it difficult for end users to adapt to new systems and for ground systems to communicate with each other. The new architecture will still allow for flexibility among the various space systems, as individual systems will need to be tailored to their specific mission requirements. The goal of EGS is to ensure all those space systems are built on a common base with similar end user experiences. “We are excited to embark on this partnership which will enhance our ability to drive speed in our processes, to deliver capabilities to support the warfighters, and develop innovative solutions that add resiliency to fight and win in a war that extends into space,” Joshua Sullivan, material leader for EGS, said in a release. “This contract will allow SMC and Air Force Space Command to concentrate resources to provide the most secure, effective, and interoperable tactical command and control experience to mission partners across the Air Force space enterprise.” The $19 million Small Business Innovative Research contract awarded to Braxton Technologies has a ceiling of $100 million. The work is expected to be completed by May 10, 2024. The Braxton Technologies award follows up on a $655,000,000 contract awarded to Engility Corp. in January to provide engineering, development, integration and sustainment services supporting the Ground System Enterprise and the eventual transition to Enterprise Ground Services. That work is expected to be completed January 31, 2026. https://www.c4isrnet.com/c2-comms/satellites/2019/06/02/air-force-awards-20m-contract-for-new-common-ground-system

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  14 mai 2018 | International, C4ISR

  What to expect from AI, space and other tech over the next 18 months

  By: Aaron Mehta What will the next 18 months mean for the Pentagon's ongoing challenge to maintain a technological edge over its enemies? That was the question posed to a panel of experts at the 17th annual C4ISRNET conference Thursday. And the answers underline just how wide the technical areas of expertise are that Pentagon officials need to get their heads around in the modern era — and how the situation will remain fluid going forward. For Richard Linderman, deputy director for research and engineering in the Office of the Assistant Secretary of Defense, the focus is on manufacturing the vital microelectronics that provide the base for all of America's high-end technologies. He predicts a push to create those chips at a higher rate domestically, which in turn would allow greater trust that the chips, forming the basis of communications equipment or artificial intelligence, would not be messed with by a foreign entity. Concern about the domestic production of microelectronics is expected to be part of a large defense industrial base review now underway. “If you're right out on the pointy end of the spear, you might not want chips made in China to be the foundation of your communications gear,” Linderman told the audience. “So I think you're going to see those kinds of investments increase dramatically, and it will be an exciting prospect for us to bring new dimensions to this discussion of trusted, assured microelectronics.” James Hasik, a professor at the National Defense University, said he would be keeping a close eye on how the autonomous Sea Hunter vehicle does during ongoing testing. DARPA recently transferred the Sea Hunter, designed to travel thousands of miles over open seas, for months at a time, without a crew member on board, over to the Navy for continued testing. “The economics of that concept are so compelling,” Lungu said. If the concept proves out, it could have “some profound applications for fleet structure, some profound applications for warfighting.” Clark Groves, a space expert also at NDU, predicted that the long-awaited boom in small satellites will finally reach critical mass in the near-future, driven by the desire to move the massive telecommunications market onto cheaper systems. DoD stands to benefit, as this would be happening at the same time the Pentagon seeks to move from relying on massive, expensive aggregated systems towards a disaggregated model relying on multiple cheap, smaller systems — which present more of a challenge for any enemy nation that may seek to take out American assets in space. “Once small satellites begin being produced in large numbers, that will fundamentally alter the industrial base of the status quo, and that will also affect the launch base,” Groves said, which in turn “will give opportunities to DoD for more effective per-cost basis to exploit the architecture that we need for resilience.” Finally, Ed Brindley, acting deputy chief information officer for cybersecurity at the Pentagon, pointed to a “more determined focus” inside the Pentagon to shift how it handles artificial intelligence. At the core of that, he said, is the upcoming AI Center of Excellence, which Deputy Secretary of Defense Patrick Shanahan predicted will be up and running in the next six months. “Part of what we will see will be opportunities for us to adopt some of what is occurring within industry today,” Brindley said, noting that AI isn't just for warfighting but could have massive impacts on the internal processes of the Pentagon, including in the medical and legal professions. https://www.c4isrnet.com/show-reporter/c4isrnet-conference/2018/05/10/what-to-expect-from-ai-space-and-other-tech-areas-over-the-next-18-months/