21 février 2024 | International, Aérospatial

Elbit Systems unveils new drone at Singapore Airshow

The company says its Hermes 650 Spark will enter serial production in 2025 for an undisclosed customer that already placed an order.

https://www.c4isrnet.com/unmanned/2024/02/21/elbit-systems-unveils-new-drone-at-singapore-airshow/

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  • The drive to advance missile defense is there, but there must be funding

    3 février 2020 | International, Aérospatial

    The drive to advance missile defense is there, but there must be funding

    By: Richard Matlock Over the past five years, missile threats have evolved far more rapidly than conventional wisdom had predicted. Best known is North Korea's accelerated development and testing of sophisticated, road-mobile ballistic missiles. But the U.S. National Defense Strategy requires renewed focus on greater powers. China has adopted an anti-access strategy consisting of new offensive missiles, operational tactics and fortifications in the South China Sea. Russia, too, has developed highly maneuverable hypersonic missiles specifically designed to defeat today's defenses. Grappling with these sobering realities demands change. The 2019 Missile Defense Review called for a comprehensive approach to countering regional missiles of all kinds and from whatever source, as well as the increasingly complex intercontinental ballistic missiles from rogue states. But programs and budgets have not yet aligned with the policy. The upcoming defense budget submission presents an important opportunity to address these new and complex challenges. The Missile Defense Agency's current top three goals are sustaining the existing force, increasing capacity and capability, and addressing more advanced threats. The first two are necessary but insufficient. The third goal must be elevated to adapt U.S. missile defense efforts to the geopolitical and technological realities of our time. For the last decade, less than 2 percent of MDA's annual funding has been dedicated to developing advanced technology, during which time our adversaries have begun outpacing us. As President Donald Trump said last January, we “cannot simply build more of the same, or make incremental improvements.” Adapting our missile defense architecture will require rebalance, discipline and difficult choices. Realigning resources to develop advanced technologies and operational concepts means investing less in single-purpose systems incapable against the broader threat. It also requires we accept and manage new kinds of risk. Indeed, meeting the advanced threat may, in the short term, require accepting some strategic risk with North Korea. The beginning of this rebalance requires more distributed, elevated and survivable sensors capable of tracking advanced threats. The most important component here is a proliferated, globally persistent space layer in low-Earth orbit consisting of both passive and active sensors. MDA may be the missile defense-centric organization best suited to developing and integrating this capability into the architecture, but there is considerable opportunity for partnering with others to move out smartly, as recently urged by Vice Chairman of the Joint Chiefs of Staff Gen. John Hyten. Partnerships with the Space Development Agency and the Air Force can be supplemented by collaborative efforts with commercial space companies. We need not do this all at once. Space assets could be fielded in phases, with numbers, capability (sensors, interceptors, lasers), missions, and orbits evolving over time. MDA demonstrated a similar paradigm with the Delta experiments, Miniature Sensor Technology Integration series and the Near Field Infrared Experiment in the past. Meanwhile, other sensors could alleviate the cost of building new, billion-dollar radar on islands in the Pacific Ocean — efforts which continue to suffer delay. Adding infrared tracking sensors to high-altitude drones, for instance, has already been demonstrated experimentally in the Indo-Pacific theater with modified Reaper unmanned aerial vehicles. These need not be dedicated assets. Sensor pod kits could be stored in theater to be deployed aboard Reapers or other platforms during heightened tensions. We must revisit boost-phase defenses and directed energy. In 2010, the Airborne Laser program demonstrated that lasers could destroy missiles in the boost phase, but deploying toxic chemical lasers aboard large commercial aircraft was fiscally and operationally untenable. Fortunately, considerable operational promise exists with recently developed solid-state lasers (the cost of which is around $2 of electricity per shot). We must move these systems out of the laboratory and build and test operational prototypes. Near-term actions to better manage risk against the rogue-state ballistic missile threat must not overtake the pursuit of these larger goals. Although the Pentagon is currently considering a 10-year, $12 billion program for a next-generation interceptor, nearer-term, cheaper options are available. Replacing each existing kill vehicle on the Ground-Based Interceptors with several smaller kill vehicles would multiply each interceptor's effectiveness dramatically. The U.S. has been developing this technology since 2006, including a “hover” flight test in 2009. Affordable solutions like this must be found. Missile defense cannot do it all. Denying, degrading and destroying enemy missile systems prior to launch must be part of the mix. But left-of-launch activities can be expensive and difficult, and reliance on a cyber magic wand carries risk, too. We need to broaden our approach to attack all parts of our adversary's kill chain. The National Defense Strategy urges that we contend with the world as it is, not as we might wish it to be — or as it previously was. To meet the threats of today and tomorrow, we must radically transform our U.S. missile defenses. It falls to the 2021 budget to do so. https://www.defensenews.com/opinion/commentary/2020/01/31/the-drive-to-advance-missile-defense-is-there-but-there-must-be-funding/

  • Japan unveils its hypersonic weapons plans

    16 mars 2020 | International, Aérospatial

    Japan unveils its hypersonic weapons plans

    By: Mike Yeo MELBOURNE, Australia — Japan has outlined its research and development road map for its homegrown, standoff hypersonic weapons, confirming that it is seeking an incremental growth in capability and providing more details about the kinds of threats it is targeting with this new class of weapon. In a Japanese-language document published on the Acquisition, Technology and Logistics Agency website, the government said two classes of standoff hypersonic systems will be deployed — the Hypersonic Cruise Missile (HCM) and the Hyper Velocity Gliding Projectile (HVGP). The former will be powered by a scramjet engine and appears similar to a typical missile, albeit one that cruises at a much higher speed while capable of traveling at long ranges. The HVGP, on the other hand, will feature a solid-fuel rocket engine that will boost its warhead payload to a high altitude before separation, where it will then glide to its target using its altitude to maintain high velocity until impact. The agency also provided more details regarding warhead payloads, with different warheads planned for both seaborne and land targets. The former will be an armor-piercing warhead designed specifically for penetrating “the deck of the [aircraft] carrier,” while a land-attack version will utilize a high-density, explosively formed projectile, or EFP, for area suppression. Area suppression effects for the latter will be achieved via the use of multiple EFPs, which are more commonly known as a shaped charge. An EFP is made up of a concave metal hemispherical or cone-shaped liner backed by a high explosive, all in a steel or aluminum casing. When the high explosive is detonated, the metal liner is compressed and squeezed forward, forming a jet whose tip may travel as fast as 6 miles per second. Japan's road map also revealed the country is taking an incremental approach with regard to designing the shapes of warheads and developing solid-fuel engine technology, with plans to field early versions of both in the 2024 to 2028 time frame. They are expected to enter service in the early 2030s. The agency expects both systems to navigate via satellite navigation with an inertial navigation system as backup. Japan is seeking to establish a network of seven satellites to enable continuous positioning for its self-defense forces, which will enable it to provide continuous navigation data without relying on foreign satellites. Warhead guidance is achieved via either radio-frequency imaging converted from doppler shift data — which the government agency said will be able to identify stealthy naval targets in all weather conditions — or an infrared seeker capable to discriminating specific targets. Japan has been conducting R&D into various areas related to hypersonic weapons for a number of years, although most of it was to benefit other fields like satellite navigation and solid-fuel rockets. More work remains, however, in areas like hypersonic guidance systems, warhead and missile-body thermal shielding, and hypersonic propulsion systems in order for Japan to be able to field a viable standoff hypersonic weapons capability. https://www.defensenews.com/industry/techwatch/2020/03/13/japan-unveils-its-hypersonic-weapons-plans/

  • SCAF : la Suède et le Royaume-Uni cherchent à rompre leur isolement

    1 août 2019 | International, Aérospatial

    SCAF : la Suède et le Royaume-Uni cherchent à rompre leur isolement

    Les ministres suédois et britannique de la Défense ont signé un protocole d'accord concernant le développement conjoint des systèmes de combat aérien du futur. Face à l'axe mis en place entre l'Allemagne, l'Espagne et la France pour développer conjointement un système de combat aérien du futur (SCAF), le Royaume-Uni et la Suède cherchent à rompre leur isolement en s'alliant. La secrétaire d'État à la Défense du Royaume-Uni, Penny Mordaunt, et le ministre suédois de la Défense, Peter Hultqvist, se sont donc rencontrés à Londres pour signer un protocole d'accord portant sur le développement d'un système similaire de combat aérien du futur (SCAF). S'étalant sur dix ans, cet accord doit permettre d'établir les conditions d'une coopération plus étroite concernant le développement d'un SCAF. Cela inclut la possibilité d'intégrer des technologies installées sur les Saab JAS 39 Gripen et BAE Systems Typhoon. Selon les parties concernées, les industriels et les gouvernements des deux pays ont identifié des besoins futurs similaires en matière de combat aérien. Le ministre de la Défense suédois, Peter Hultqvist, a souligné que les relations industrielles partagées par les deux pays étaient essentielles pour garantir cette future puissance aérienne de combat. « La coopération internationale fait partie de la stratégie de croissance de Saab et la collaboration avec les industries britanniques représente cette façon de travailler, également en prévision du futur », commente Håkan Buskhe, président de Saab. Le constructeur suédois rappelle qu'il développe actuellement le chasseur de nouvelle génération, le Gripen E/F, et qu'il « s'engage à le faire en étroite collaboration avec ses partenaires stratégiques, les forces aériennes suédoises et brésiliennes, ainsi qu'avec d'autres clients existants et nouveaux du Gripen, afin que le Gripen évolue pour répondre aux nouvelles exigences opérationnelles des prochaines décennies. » De son côté, le ministre britannique chargé des achats de la Défense, Stuart Andrew, a rappelé que le partenariat entre le Royaume-Uni et la Suède comportait déjà des exercices conjoints dans l'Arctique ainsi que l'exercice Ramstein Alloy au-dessus de l'Europe de l'Est. De même, les Typhoons de la Royal Air force sont équipés de distributeurs de paillettes et de leurres de fabrication suédoise tandis que le radar Giraffe de Saab est un élément clé du système de défense aérienne au sol britannique Sky Saber. Enfin, les Gripen sont équipés de radars conçus et construits par Leonardo à Edimbourg et le Royaume-Uni, en collaboration avec des partenaires européens, dont la Suède, a mis au point des missiles air-air Meteor. https://www.air-cosmos.com/article/scaf-la-sude-et-le-royaume-uni-cherchent-rompre-leur-isolement-21536

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