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  21 octobre 2020 | International, Aérospatial, Naval, Sécurité

  Navy Hires Boeing To Develop A Very Fast And Long-Range Strike Missile Demonstrator

  The Navy will use the new high-speed demonstrator to help refine its requirements for future stand-off anti-ship and land-attack missiles. oeing has received a contract to help develop a ramjet-powered high-speed missile demonstrator for the U.S. Navy. The company says that the design will aid the service in identifying requirements for future air-launched missiles, possibly ones able to reach hypersonic speeds, that its F/A-18E/F Super Hornets and other combat aircraft within its carrier air wings will be able to employ against targets on land or at sea. The company's Defense, Space & Security division announced that the Naval Air Warfare Center Weapons Division (NAWCWD), part of Naval Air Systems Command (NAVAIR), had awarded it this contract, worth approximately $30 million, on Oct. 20, 2020. The work will be conducted under what is officially called the Supersonic Propulsion Enabled Advanced Ramjet (SPEAR) program. The goal is to conduct the first flight of the demonstrator in late 2022. "We have a talented team of engineers to meet the challenging technical demands and schedule timeline that the SPEAR program requires," Steve Mercer, the Program Manager at Boeing for the SPEAR effort, said in a statement. "We look forward to working with Navy experts to advance technologies for the Navy's future capabilities." It's not entirely clear what kind of missile demonstrator the Navy is looking for exactly for the SPEAR program. The acronym includes the word "supersonic," but Boeing's press release cites its prior work on the X-51A Waverider, an experimental air-breathing hypersonic vehicle that featured a scramjet engine. Hypersonic speed is generally defined as anything above Mach 5. At the same time, Boeing also highlighted its work on "the Variable Flow Ducted Rocket propulsion system under the Triple Target Terminator program in 2014." The Triple Target Terminator program, or T-3, which the Defense Advanced Research Projects Agency (DARPA) led, explored concepts for very-long-range air-launched missiles that would be able to engage hostile aircraft, cruise missiles, and air defense threats on the ground, hence the name. A Variable Flow Ducted Rocket propulsion system is a kind of rocket ramjet, a relatively well-established concept at its core, in which gas produced by burning a source of solid fuel is mixed with compressed air fed into a combustion chamber via a duct or air intake to produce thrust. Advanced designs that allow for varying the flow of gas into the combustion chamber make it possible to throttle the thrust and adjust the speed of the vehicle the ramjet is powering. With this in mind, it's worth noting that NAWCWD issued a request for information regarding "Solid Fuel Ramjet Propulsion Manufacture/Test" in March, though it is unclear if that contracting notice is related in any way to SPEAR. In addition, Boeing's press release says that it will "co-develop" the SPEAR demonstrator, but it's unclear if this means another company is involved in the effort or that the Navy's own engineers and scientists will be directly assisting with the work. The website of the Naval Aviation Systems Consortium (NASC) lists a contract award to the company relating to the SPEAR program on Aug. 31, valued at just over $32 million, but for the demonstrator's airframe only. NASC "has been formed to support the technology needs of the Naval Air Warfare Centers (NAWCs) and the Naval Air Systems Command (NAVAIR) through the use of Other Transaction (OT) Authority," according to the site. There is no mention of this award in the Pentagon's daily contracting announcement for Aug. 31, which is supposed to include any deal valued at more than $7 million. The SPEAR contract that Boeing has just announced also does not appear in today's notice, so it's unclear when the Navy formally awarded these two contracts and whether or not they are, in fact, the same one. The War Zone has already reached out to Boeing for more information about its involvement in the SPEAR effort. Whatever the company's role in the project is or isn't, the press release certainly indicates that it will be a stepping stone to the development of future anti-ship and land-attack missiles that will be integrated onto aircraft in the Navy's carrier air wings. This includes the services F/A-18E/F Super Hornets, another Boeing product, a significant number of which eventually slated to go through the Block III upgrade program, which will add a host of advanced features that you can read about in more detail in this past War Zone piece. At the same time, the clear indication is that any operational weapons that follow-on from the SPEAR effort could be added to the arsenal of the service's F-35C Joint Strike Fighters, as well. An F/A-18E Super Hornet, at left, and an F-35C Joint Strike Fighter, at right, share space on the flight deck of the Nimitz class aircraft carrier USS Abraham Lincoln during tests in 2018. "The contract award comes after the Department of Defense requested information from the defense industry to help the Navy determine technical requirements of future carrier-based land and sea strike weapons systems," Boeing's press release said. "The SPEAR flight demonstrator will provide the F/A-18 Super Hornet and carrier strike group with significant improvements in range and survivability against advanced threat defensive systems," Mercer, the firm's SPEAR program manager, added. Very-long-range, high-speed strike weapons could be very valuable for the Navy's carrier air wings, especially as potential near-peer adversaries, such as China and Russia, continue to develop and field increasingly longer-range and otherwise more capable surface-to-air missile systems and associated radars and other sensors. Aircraft carriers and their associated strike groups and air wings are also increasingly at risk from various anti-access and area-denial capabilities, further underscoring the need for weapons with greater range and that are able to prosecute targets faster to help ensure their survival. At present, the primary air-launched stand-off anti-ship and land-attack missiles available to them are the AGM-84D Harpoon anti-ship cruise missile, the AGM-84H/K Standoff Land Attack Missile-Expanded Response (SLAM-ER), and the AGM-158C Long Range Anti-Ship Missile (LRASM), all of which are subsonic. The service is in the process of developing the AGM-88G Advanced Anti-Radiation Guided Missile-Extended Range (AARGM-ER), which will have at some surface strike capabilities and will also serve as the basis for a Stand-in Attack Weapon (SiAW) for the U.S. Air Force. However, the exact speed and range of this weapon are unclear. The Navy is also developing a powered cruise missile derivative of its AGM-154 Joint Stand-Off Weapon (JSOW) glide bomb. Boeing's SPEAR announcement comes as the U.S. military as a whole is pursuing a wide array of new hypersonic strike weapons, including unpowered boost-glide vehicles and air-breathing missiles. The Air Force is working toward its own "Expendable Hypersonic Multi-Mission Air-Breathing Demonstrator" as part of a program called Mayhem, which is linked to work on advanced turbine-based combined cycle engines. That service is also working closely with DARPA on the Hypersonic Air-breathing Weapon Concept (HAWC) project and its own Hypersonic Attack Cruise Missile (HACM) effort. Lockheed Martin, which is leading the development of the HAWC missile, has proposed a follow-on design for use by the Navy in the past. In August, the Air Force had said it was looking at designs from Boeing, as well as Lockheed Martin and Raytheon, to meet a requirement for "a solid-rocket boosted, air-breathing, hypersonic conventional cruise missile, air-launched from existing fighter/bomber aircraft." It's not clear if that announcement was related to HACM or not, but the following month, Boeing released a computer-generated promotional video featuring a B-1 bomber firing what the company described as a notional hypersonic missile. The company has subsequently released a more detailed still rendering featuring this conceptual missile that, at least visually, appears to be an air-breathing design. All told, it's hardly surprising that the Navy is also in the process of pursuing its own high-speed strike missiles to arm its carrier aircraft. There's no reason to believe that the weapons that emerge from SPEAR won't be suitable for integration onto land-based platforms, such as the service's P-8A Poseidon maritime patrol aircraft, as well. Whatever SPEAR's final design looks like, it's an important step forward for the Navy in providing this capability to its combat aircraft fleets in the future. https://www.thedrive.com/the-war-zone/37170/navy-hires-boeing-to-develop-a-very-fast-and-long-range-strike-missile-demonstrator

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  31 juillet 2018 | International, Aérospatial

  GAO backs use of commercial satellites to host military payloads

  by Sandra Erwin “Using hosted payloads may help facilitate a proliferation of payloads on orbit, making it more difficult for an adversary to defeat a capability." WASHINGTON — The Pentagon should use commercial satellites as host platforms for military sensors and communications packages, says a new Government Accountability Office report released on Monday. GAO auditors investigated the pros and cons of “hosted payloads” and agreed with what private satellite operators have been saying for years: The military can save money and get capabilities on-orbit faster by hitching rides on commercial satellites. The industry has been building huge spacecraft that have extra carrying capacity, and hosting national security payloads is viewed as a profitable business that also helps the military fill a need. The report says there are national security benefits to deploying military payloads on commercial satellites. “Using hosted payloads may also help facilitate a proliferation of payloads on orbit, making it more difficult for an adversary to defeat a capability.” Since 2009, DoD has used three commercially hosted payloads, with three more missions planned or underway through 2022. In 2011, the Air Force created a Hosted Payload Office to provide expertise and other tools to facilitate matching government payloads with commercial hosts. GAO found that defense programs using hosted payloads are not required and generally do not provide cost and technical data, or lessons learned, to the Hosted Payload Office. Having that information would “better position DoD to make informed decisions when considering acquisition approaches for upcoming space system designs.” The Pentagon has not been too keen on hosted payloads for several reasons, GAO noted. There is a perception among some defense officials that matching government payloads to commercial satellites is too difficult. Another concern is that DoD's knowledge on using hosted payloads is “fragmented, in part because programs are not required to share information.” DoD officials who spoke with GAO identified “logistical challenges to matching government payloads with any given commercial host satellite.” For example, they cited size, weight and power constraints as barriers to using hosted payloads. Some individual DoD offices have realized cost and schedule benefits, but “DoD as a whole has limited information on costs and benefits of hosted payloads,” said the report. Officials at the Office of the Secretary of Defense told GAO that “matching requirements between government payloads and commercial satellites is typically too difficult for programs to overcome.” DoD's Hosted Payload Office is “developing tools designed to help address these challenges,” said the report. Defense officials also argued that budget and planning processes are a hurdle. “This can complicate alignment with commercial timelines because the development of a government sensor would need to be underway well in advance of a decision to fund a commercially hosted payload approach.” Officials told GAO that it is possible to align government and commercial timelines. For example, the Missile Defense Agency adopted the commercial host's schedule to ensure its Space Based Kill Assessment payload was ready for integration and launch without delaying the host satellite or missing its ride to space. Similarly, the Defense Advanced Research Projects Agency has been able to align acquisition and development schedules with the commercial host. In its written comments in the report, DoD concurred with GAO's recommendations and noted that the Air Force Space and Missile Systems Center had initiated a major reorganization and that under the new organization, the Hosted Payload Office had changed and may not be the appropriate office for centralizing DoD-wide hosted payload knowledge. Language in the Fiscal Year 2019 National Defense Authorization Act directs the Pentagon to seize oversight of military investments in hosted payloads. https://spacenews.com/gao-backs-use-of-commercial-satellites-to-host-military-payloads/

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  21 avril 2021 | International, Aérospatial

  French A400M completes helicopter-refueling drills

  France has recently completed a series of test flights to move forward with certification of the A400M’s capability to refuel helicopters during flight, day and night.