28 février 2023 | International, Aérospatial

Boeing faces similar supply chain challenges in defence to commercial business -exec

Boeing Co's defence business is facing some of the same supply chain challenges as its commercial business, including delays in receiving parts, an executive said on Wednesday.

https://www.reuters.com/business/aerospace-defense/boeing-faces-similar-supply-chain-challenges-defence-commercial-business-exec-2023-02-28/

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  • Top Military Engine Manufacturers By Deliveries/Retirements 2020-2029

    22 janvier 2020 | International, Aérospatial

    Top Military Engine Manufacturers By Deliveries/Retirements 2020-2029

    Aviation Week Network forecasts that over the next ten years, 18,631 new, western-developed engines will be delivered for new military aircraft or as part of re-engining processes. In the same period 11,669 engines will be retired from service. Note: Engines produced by industrial partnerships such as Eurojet are tracked separately from their partner companies. General Electric will deliver 27.7% of total global deliveries of engines. Out of General Electric's total deliveries, 3,560 will be variants of their T700 series of engines, found on most U.S. military helicopters, including the Sikorsky S-70/H-60. The T700 family alone will account for 19.1% of the total deliveries of engines for military aircraft. In a distant second is Pratt & Whitney, which will deliver 12.7% of total global deliveries. Of those deliveries, 70.9%, will be variants of the F135 engine that powers Lockheed Martin's F-35. Following Pratt & Whitney is Rolls-Royce, which will deliver just 7% engines under their own name but contribute heavily to numerous industrial partnerships. A full 25% of engines are tied to competitions or requirements for which an engine manufacturer has not yet been selected, leaving ample growth opportunity for all manufacturers. General Electric also will see the most engine retirements of any manufacturer between 2020 to 2029, with 36.8% of global retirements. The T700 engine family once again makes up the bulk of General Electric's activity, with 24.4% retirements. Rolls-Royce will have more than twice as many engine retirements as deliveries with 23.4% of all global retirements in the next decade. The retirement of T56 (501) engines, mainly on older-model Lockheed Martin C-130s, is the single-largest driver of retirements for Rolls-Royce. https://aviationweek.com/defense-space/z/top-military-engine-manufacturers-deliveriesretirements-2020-2029

  • La Suède affirme avoir construit un avion «tueur» de chasseurs russes Sukhoi

    11 février 2019 | International, Aérospatial

    La Suède affirme avoir construit un avion «tueur» de chasseurs russes Sukhoi

    Les avions de chasse Saab Gripen sont conçus pour «tuer» les redoutables chasseurs russes Sukhoi en combat aérien et ils possèdent une «ceinture noire» dans ce type de combat, a déclaré le commandant de l'armée de l'air suédoise. Le chasseur suédois Gripen est fait pour détruire les Sukhoi russes et sa furtivité n'y est pour rien, a annoncé le commandant de l'armée de l'air suédoise Mats Helgesson. «Le Gripen, en particulier le modèle E, est conçu pour tuer les Sukhoi. Nous avons une ceinture noire», a déclaré Mats Helgesson cité par Business Insider. Selon le média, les avions de chasse russes Sukhoi ont acquis une sorte de statut légendaire en raison de leur capacité à déjouer les avions de combat américains lors de combats aériens et à réaliser des acrobaties dangereuses et agressives, mais le Gripen a peut-être déchiffré son énigme. «Le Gripen ne peut pas porter un plus grand nombre d'armes, n'a pas de furtivité réelle et n'est pas un avion avec un véritable rayon d'action. Il n'est pas le plus rapide ni même le moins cher. Mais il dispose d'une particularité qui en fait un cauchemar pour les avions de combat russes», affirme Business Insider. Justin Bronk, expert au Royal United Services Institute, a déclaré à Business Insider que le Gripen était au-dessus des autres en termes d'efficacité de la lutte électronique et de brouillage de radars. «Il y a plusieurs années, les pilotes du Gripen étaient fatigués de se voir ridiculisés par les pilotes allemands de Typhoon. Ils ont alors mis en marche leurs moyens de guerre électronique et ont fait passer un sacré coup dur aux Allemands», a relaté Justin Bronk. Selon lui, un Gripen aurait «pu apparaître sur l'aile gauche d'un Typhoon sans être détecté en utilisant sa capacité de brouillage». «Pour vaincre les redoutables chasseurs et missiles sol-air russes, les États-Unis se sont largement tournés vers les avions furtifs. La furtivité coûte une fortune et doit être intégrée à la forme de l'avion», signale Business Insider ajoutant que si la Russie déchiffre le code de détection des avions furtifs F-35 américains, le système d'armes le plus cher de l'histoire sera perdu. «Mais Saab a adopté pour ses avions une approche différente et moins chère pour lutter contre les chasseurs et les missiles russes en se concentrant sur l'attaque électronique, ce qui leur confère un avantage sur la furtivité, car ils peuvent faire évoluer le logiciel sans une reconstruction totale», a résumé Justin Bronk. Le chasseur polyvalent Su-57 de cinquième génération, connu auparavant sous le nom de T-50 PAK FA, a effectué son premier vol en 2010. L'appareil est destiné à détruire des objectifs aériens, terrestres et navals. Il est également capable de déjouer les systèmes de défense aérienne existants et en développement. En février 2018, le ministre russe de la Défense Sergueï Choïgou a révélé que deux Su-57 avaient été testés en Syrie. Dans la conception de l'appareil, qui combine les fonctions de chasseur et d'avion d'attaque au sol, des technologies furtives et des matériaux composites sont utilisés. Selon l'annonce du président de la Compagnie aéronautique unifiée, Youri Slioussar, la livraison du premier avion fabriqué en série pour les Forces aérospatiales russes est prévue pour 2019. https://sptnkne.ws/kEHG

  • AI’s dogfight triumph a step toward human-machine teaming

    14 septembre 2020 | International, Aérospatial, C4ISR

    AI’s dogfight triumph a step toward human-machine teaming

    By: Joe Gould WASHINGTON ― Human fighter pilots, your jobs are safe for now. Weeks after an artificial intelligence algorithm defeated a human pilot in a simulated dogfight between F-16 jets, the Pentagon's director of research and engineering for modernization said Thursday at the Defense News Conference that it's more likely an AI will team with military pilots than replace them. “I don't see human pilots being phased out, I see them being enhanced, not physically, but I see their work, their effectiveness being enhanced by cooperation with artificial intelligence systems,” said Mark Lewis, who also serves as the acting deputy undersecretary of defense for research and engineering. The AlphaDogfight Trials in August marked the finale of the Pentagon research agency's AI air combat competition. The now-notorious algorithm, developed by Heron Systems, easily defeated the fighter pilot in all five rounds that capped off a yearlong competition hosted by the Defense Advanced Research Projects Agency ― which is overseen by Lewis and the Defense Department's research and engineering shop. “The key takeaway from that was the artificial intelligence system did so well because it wasn't so concerned about self-preservation, it was willing to do things that a human pilot wouldn't do. And that's the advantage of artificial intelligence,” Lewis said. “I think the real answer is teaming AI with a human for the best combination of both. So I'm pretty confident we're going to have human pilots into the future.” The AlphaDogfight Trials were a subset of the Air Combat Evolution program, or ACE, which is one of a few DARPA efforts exploring human-machine teaming, agency spokesman Jared Adams said in an email. ACE is using human-machine collaborative dogfighting to increase trust in combat autonomy, and the goal is for it to scale to more complex multi-aircraft scenarios to pave the way for live, campaign-level experimentation. Fiscal 2023 will see the first in a yearlong series of trials using tactical fighter-class aircraft (currently L-39 trainers), with safety pilots on board to assist in case of trouble. Those pilots would be given “higher cognitive level battle management tasks while their aircraft fly dogfights,” all while sensors gauge the pilot's attention, stress and trust in the AI, Adams said. DARPA foresees a single human pilot serving as a mission commander in a manned aircraft, orchestrating multiple autonomous, unmanned platforms that would all be engaged in individual tactics. ACE would ultimately deliver that capability. “ACE, therefore, seeks to create a hierarchical framework for autonomy in which higher-level cognitive functions (e.g., developing an overall engagement strategy, selecting and prioritizing targets, determining best weapon or effect, etc.) may be performed by a human, while lower-level functions (i.e., details of aircraft maneuver and engagement tactics) is left to the autonomous system,” Adams said. “In order for this to be possible, the pilot must be able to trust the autonomy to conduct complex combat behaviors in scenarios such as the within-visual-range dogfight before progressing to beyond-visual-range engagements.” In announcing the future trials using tactical aircraft on Wednesday, Defense Secretary Mark Esper said: “AI's role in our lethality is to support human decision-makers, not replace them.” “We see AI as a tool to free up resources, time and manpower so our people can focus on higher-priority tasks and arrive at the decision point, whether in a lab or on the battlefield, faster and more precise than the competition,” he added. But Esper warned that both Russia and China were pursuing fully autonomous systems, and drew a distinction between them and what he described as the U.S. military's ethically guided approach to AI. “At this moment, Chinese weapons manufacturers are selling autonomous drones they claim can conduct lethal targeted strikes,” he said. “Meanwhile, the Chinese government is advancing the development of next-generation stealth UAVs, which they are preparing to export internationally.” https://www.defensenews.com/congress/2020/09/10/ais-dogfight-triumph-a-step-toward-human-machine-teaming/

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