Comment l'armée française tisse des liens avec les startups de cybersécurité

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  15 août 2019 | International, Aérospatial

  DARPA Invites Proposals For Active-Flow-Control X-Plane

  By Graham Warwick DARPA has formally launched a program to build and fly an X-plane designed around active flow control (AFC), potentially eliminating the need for moving control surfaces. Designing from the ground up around AFC, rather than modifying an existing aircraft, is expected to yield performance and operational benefits. A broad agency announcement (BAA) was released on Aug. 12 for the first two of four planned phases of the Control of Revolutionary Aircraft with Novel Effectors (Crane) program. A proposers' day is scheduled for Aug. 26 and proposals are due to be submitted by Nov. 8. A budget of $21 million is available for multiple awards under the 12-month Phase 0, which will focus on the aircraft design process and understanding the trade space. DARPA expects performers to enter this phase with multiple candidate configurations and flow-control approaches. Each Phase 0 contract will end with a conceptual design review for one or more configurations. Phase 1 will continue to mature up to two concepts and is expected to involve component-level testing and demonstrations to inform a system requirements review. This nine-month phase is planned to culminate in a preliminary design review for the proposed X-plane. DARPA plans to downselect to one performer at the end of Phase 1 in second-quarter fiscal 2022 and award a contract for Phase 2 detailed design. This is planned to conclude in a critical design review and lead to a go/no-go decision in the second quarter fiscal of 2023 for Phase 3 building and flying of the X-plane. First flight is planned for the third quarter of fiscal 2024. DARPA wants a “tactically relevant scale aircraft,” the BAA says. This may include a “clean-sheet design or modification of an existing aircraft.” The agency expects substantial use of off-the-shelf components for the flight demonstrator so that program resources can be focused on AFC development and testing. AFC modifies the flow field around the aircraft using mechanical or fluidic actuators. The BAA specifically excludes using large external moving surfaces, mechanical vectoring of engine exhaust or other traditional moving aerodynamic control surfaces. AFC applications identified in the BAA include eliminating moving control surfaces for stability and control and improving takeoff and landing performance, high-lift flight, thick-airfoil efficiency and high-altitude flight. Proposers may identify additional applications and benefits. A NATO technical study involving Lockheed Martin, BAE Systems and academic institutes in the U.S. and UK identified that an unmanned combat aircraft with AFC could have stealth and other potential performance benefits during the ingress and egress phases of a strike mission. https://aviationweek.com/defense/darpa-invites-proposals-active-flow-control-x-plane

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  3 septembre 2019 | International, Terrestre

  In first, MDA remotely launches a missile

  By: Jen Judson WASHINGTON — The first-ever test of the Terminal High Altitude Area Defense system'sability to remotely fire an interceptor was deemed a success by the U.S. Missile Defense Agency. Following the test in the early hours of Aug. 30, the Lockheed Martin-made THAAD has now had 16 successful intercept tests in a row. But the significant milestone is proving the ability to remotely engage the system with a government-developed remote launcher kit. The capability provides extended range of a defended area, an MDA statement notes. “Preliminary indications are that planned flight test objectives were achieved and the target was successfully intercepted by the THAAD weapon system,” the statement reads. "This test demonstrates the expanding capabilities of the THAAD weapon system and its ability to intercept and destroy ballistic missile threats in defense of our nation, deployed forces and allies,” MDA Director Vice Adm. Jon Hill said in the statement. THAAD operators from the E-62 Battery conducted radar operations as well as launcher and fire control operations employing a procedure used in combat and were unaware of the target-launch timing. The ability to launch an interceptor remotely achieves a more layered — and ultimately less stove-piped — approach to regional ballistic missile defense and to increase the battlespace. The U.S. Army is also working to integrate the Patriot medium-range air-and-missile defense system with THAAD in response to an urgent operational need on the Korean Peninsula. That effort uses some of the same principles of decoupling launchers and radars so an operator can, for instance, use a THAAD radar (which can see farther than a Raytheon-made Patriot radar) but decide to engage a Patriot interceptor depending on the threat picture. The ability to use the THAAD radar also gets more out of the Patriot Advanced Capability-3 Missile Segment Enhancement (PAC-3 MSE) missile fired from Patriot units, which outperforms the organic Patriot radar. Earlier, in an Aug. 29 Army test also at White Sands Missile Range, a PAC-3 Cost Reduction Initiative interceptor took out an air-breathing threat “at a record distance," according to a Lockheed Martin statement. The company builds the missile as well as the PAC-3 MSE. The test also showed it can be integrated into the Northrop Grumman-made Integrated Air and Missile Defense Battle Command System, the command-and-control system of the Army's future air and missile defense architecture. The test demonstrated the Northrop system's ability to detect, track and engage a low-flying threat at a distance that exceeds the range of the current Patriot system, according to a Northrop Grumman statement. https://www.defensenews.com/land/2019/08/30/first-remotely-launched-terminal-missile-defense-test-deemed-a-success

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  21 septembre 2023 | International, Aérospatial

  UK mulls onboard sensing requirements for satellites

  The policy could be included as part of a forthcoming Space Sector Plan that outlines opportunities to boost the U.K. space economy and promote resilience.