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October 27, 2022 | International, Aerospace

GKN Aerospace franchit une étape importante avec la première rotation du moteur RM16 dans le banc d'essai.

GKN Aerospace a achevé avec succès le premier tour moteur du moteur RM16 de pointe qui équipera le JAS 39 Gripen E. Cette étape importante permet à GKN Aerospace de fournir un support produit RM16 complet aux forces armées suédoises, garantissant ainsi la disponibilité du moteur pour les futures missions des forces aériennes suédoises.

https://air-cosmos.com/article/gkn-aerospace-franchit-une-etape-importante-avec-la-premiere-rotation-du-moteur-rm16-dans-le-banc-d-essai-62516

On the same subject

  • U.S. Security Requires Multiple Elements of Deterrence

    July 4, 2019 | International, Security, Other Defence

    U.S. Security Requires Multiple Elements of Deterrence

    BY C. TODD LOPEZ In the context of U.S. defense policy, "deterrence" is typically understood to mean "nuclear." And America's nuclear triad — ground-based missiles, air-delivered bombs, and submarine-launched missiles — serves as America's biggest form of deterrence, which underwrites everything its men and women in uniform do. But according to Chief of Naval Operations Adm. John M. Richardson, nuclear weapons are just one of multiple elements of deterrence the U.S. must consider either for itself, or for being aware that other nations might be using them. During a July 2 breakfast presentation hosted by the Mitchell Institute for Aerospace Studies in Washington, Richardson laid out five such elements of deterrence already in use or that must be considered more deeply. Nuclear "It's an incredibly powerful military capability where potentially everybody gets destroyed," Richardson said. "We must maintain our ability to be competitive and relevant in this domain ... [and] strike back at anybody who can pose an existential nuclear threat to the homeland." The triad itself includes ground-based missiles — commonly referred to as intercontinental ballistic missiles; submarine-launched ballistic missiles; and air-launched cruise missiles dropped from bomber aircraft. In all three areas the U.S. is underway with modernization efforts. But the nuclear environment globally is changing, Richardson said. "More nations are seeking to join the club," he said. Some of those nations can bring high-tech weapons, while some are using low-tech, including dirty bombs and systems that can be manufactured with 3-D printers. Additionally, not all nuclear weapons are "strategic" in nature. Some are smaller "tactical" weapons. "The nuclear element of this mix remains very relevant, very active, and deserves a lot more attention in my mind," Richardson said. Cyber Richardson said when it comes to cyber as a deterrent, the U.S. can't maintain only defensive capabilities. "We have to have an ability for offensive cyber to truly achieve a sense of deterrence there," he said. Recent cyber provocations, he said, are "multidimensional in ways that may or may not have been expected." Included there, he said, are theft of intellectual property, invasion of privacy, invasion of identity, distortion of identity, "and most recently, perception management. This perception management idea ... might be kind of our new Sputnik moment." Space "The competition is absolutely heating up in space," Richardson said. "Of these elements that are going to constitute a tailored strategic deterrent approach, space has got to be one of those." Richard posited that in space, it might become apparent that, using directed energy weapons, it proves far easier to destroy something in space than it is to put something back up into space. "These things operate really fast ... and space goes away as an asset," he said. "You can see kind of a mutually assured destruction scenario in space pretty easily. Have we thought about that going forward?" Chemical, Biological Capabilities Increasingly, Richardson said, chemical and biological deterrence will come into the mix, especially as technologies such as CRISPR — a genome editing tool — allow for more tailored capabilities. "One of the self-deterrent aspects of chemical/biological is that it's very hard to control. It goes viral, if you will," he said. "But with these tailoring things, you can get a lot more specific. It becomes a lot more targetable. And so, it's something we have to mind." Conventional Weapons U.S. deterrence advantages in conventional weapons have relied, so far, on superior targeting ability, Richardson said. But that may become less important. "We have better sensors, better satellites, better ways to connect that data with our command and control systems, our targeting systems," he said. "We had an advantage in terms of precision." Now, he said, such sensors are ubiquitous, and commercial and military sensors are going up into space. There are cameras everywhere. "This idea of being able to locate things with precision is becoming more ubiquitous," he said. "It's less of an advantage. It's really the team that can manage that information better that's going to achieve the advantage." https://www.defense.gov/explore/story/Article/1896147/us-security-requires-multiple-elements-of-deterrence/

  • An aerospace startup just won a contract to develop an Air Force One jet that can travel at Mach 5. Here's an early look at the engine that could rocket from New York to Paris in 90 minutes.

    August 7, 2020 | International, Aerospace

    An aerospace startup just won a contract to develop an Air Force One jet that can travel at Mach 5. Here's an early look at the engine that could rocket from New York to Paris in 90 minutes.

    David Slotnick 19 hours ago The Air Force One of the future might be getting a major speed boost. An aerospace company called Hermeus on Thursday announced a contract with the US Air Force and the Presidential and Executive Airlift Directorate to develop a hypersonic aircraft for the presidential fleet. While the next Air Force One, a modified 747-8, is due to be delivered by Boeing next year, the Hermeus contract looks toward its eventual replacement. Hermeus said it won the contract after designing, building, and successfully testing a prototype of an engine capable of propelling an airplane to Mach 5, or five times the speed of sound — about 3,300 mph. Mach 5 represents the delineation between supersonic and hypersonic speeds. The company completed those tests in March, Aviation Week reported. Hermeus plans to build a demonstrator vehicle over the next five years, with commercial aircraft envisioned in about a decade, Skyler Shuford, its cofounder and chief operating officer, said in 2019. A press release announcing the Air Force contract said part of the project would focus on integrating Air Force requirements into the airplane's designs. Hermeus emerged last year, announcing plans to develop a Mach 5 aircraft that could fly from New York to Paris in about 90 minutes. Ars Technica reported in May 2019 that the company raised an initial round of funding, led by Khosla Ventures, which it used to develop the prototype. Hermeus said it would use a turbine-based combined-cycle engine for the propulsion system, according to the report. The company's cofounders are alumni of SpaceX, Blue Origin, and the aerospace company Generation Orbit. At the time, Hermeus said it planned to use mostly existing technology and materials to achieve hypersonic travel. "We can make a vehicle fly that fast with today's technology," Glenn Case, a cofounder and the chief technology officer, said in a video published this spring. "We aren't getting into anything too miraculous," Shuford told Ars Technica last year. "We want to do engineering, not science." As of Thursday, the company listed about 10 open positions, including for airframe and propulsion engineers. https://www.businessinsider.com/hypersonic-air-force-one-hermeus-mach-5-2020-8

  • U.S. FCC proposes additional spectrum for drone communications

    January 5, 2023 | International, Aerospace, C4ISR

    U.S. FCC proposes additional spectrum for drone communications

    The U.S. Federal Communications Commission (FCC) on Wednesday proposed new rules to make licensed radio spectrum in the 5 GHz band for the rising number of unmanned aircraft systems, or drones, in use.

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