General Dynamics wins Army IT contract worth billions

On the same subject

• 

  January 13, 2020 | International, Aerospace

  Rolls-Royce développe un démarreur électrique pour le futur chasseur de la Royal Air Force

  Depuis 2014, Rolls-Royce développe un démarreur électrique qui devrait être intégré au moteur du Tempest, le futur avion de combat de la Royal Air Force britannique. Le tout devrait prendre moins de place et générer de l'énergie de manière plus intelligente, ce qui permettra à l'appareil d'optimiser ses consommations, tout en étant moins gros que l'actuel Eurofighter Typhoon. Le Tempest, futur avion de combat de la Royal Air Force britannique devrait comporter nettement plus d'éléments électriques que son prédécesseur, l'Eurofighter Typhoon. Dans cette optique, Rolls-Royce a confirmé être en train de développer, pour l'appareil, un nouveau système de démarrage des turboréacteurs, électrique et intégré. Le constructeur planche sur le projet depuis plus de cinq ans. Dès 2014, il met au point un générateur de démarrage électrique, entièrement intégré au cœur d'un moteur à turbine à gaz. Le programme du démonstrateur est baptisé "Embedded Electrical Starter Generator", ou E2SG. Moins de place pour un appareil moins gros "Le générateur électrique embarqué permettra de gagner de la place et fournira une importante quantité d'énergie aux futurs chasseurs", explique dans un communiqué Conrad Banks, ingénieur en chef du programme chez Rolls-Royce. Les générateurs actuels génèrent de l'énergique à l'aide d'une boîte de vitesses située sous le moteur. Un élément qui requiert un certain espace. N'en ayant plus besoin, le Tempest pourra être plus petit et donc plus furtif. En 2017, le projet est entré dans sa deuxième phase. Un second générateur électrique a été intégré à l'autre partie du turboréacteur. Le réseau électrique de l'appareil est désormais capable de stocker de l'énergie et une fonction intelligente gère l'alimentation de tous les systèmes. Baptisé Power Manager, il "utilise des algorithmes et prend des décisions intelligentes en temps réel pour répondre à la demande électrique de l'avion, tout en optimisant d'autres facteurs, comme la consommation de carburant ou la température du moteur, pour prolonger la durée de vie des composants", détaille le communiqué. Une troisième phase devrait bientôt voir le jour, avec l'intégration d'un nouveau système de gestion thermique et l'électrification d'autres composants. Rolls-Royce prévoit également la présentation prochaine d'un démonstrateur taille réelle qui comprendra toutes les innovations susmentionnées. https://www.usinenouvelle.com/article/rolls-royce-developpe-un-demarreur-electrique-pour-le-futur-chasseur-de-la-royal-air-force.N919119

• 

  February 9, 2021 | International, Aerospace

  Design Gets Underway on DARPA’s ‘LongShot’ Drone

  Feb. 8, 2021 | By Rachel S. Cohen Development of a new breed of unmanned aircraft is now underway, as three major defense companies earned contracts to start designing a future system known as “LongShot.” The LongShot program wants to create an unmanned weapons porter that can be shot from another plane before firing multiple air-to-air missiles itself, according to the Defense Advanced Research Projects Agency, which runs the effort. DARPA announced Feb. 8 it has funded General Atomics, Lockheed Martin, and Northrop Grumman to start design work in the project's first phase, but did not disclose how much money is part of those contracts. “The objective is to develop a novel [unmanned air vehicle] that can significantly extend engagement ranges, increase mission effectiveness, and reduce the risk to manned aircraft,” DARPA said in a release. “It is envisioned that LongShot will increase the survivability of manned platforms by allowing them to be at standoff ranges far away from enemy threats, while an air-launched LongShot UAV efficiently closes the gap to take more effective missile shots.” The project first appeared in DARPA's fiscal 2021 budget request as a prospective addition to the Air Force and Navy's inventories. The budget called for a plane that uses “multi-mode propulsion” to tackle multiple airborne threats at once, Air Force Magazine previously reported. The program called for $22 million in its first year. “LongShot will explore new engagement concepts for multi-modal, multi-kill systems that can engage more than one target,” DARPA wrote. “LongShot can be deployed either externally from existing fighters or internally from existing bombers.” Last year, the research agency suggested the aircraft could fly slowly toward its target at first to save fuel, then speed up once it gets close. “This approach provides several key benefits,” DARPA said. “First, the weapon system will have a much-increased range over their legacy counterparts for transit to an engagement zone. Second, launching air-to-air missiles closer to the adversary increases energy in terminal flight, reduces reaction time, and increases probability of kill.” The Pentagon hasn't said what weapons LongShot would carry, or how autonomous its software might be. On paper, LongShot appears similar to other efforts like the Air Force's previous Gray Wolf missile program, which looked to create a munition that could carry other weapons inside. That was discontinued in favor of the service's Golden Horde swarming bomb project. Later in the LongShot program, DARPA said, the companies will fly a full-scale prototype that is “capable of controlled flight before, during, and after” it is fired. The agency did not immediately answer how long the initial design phase will last. The fiscal 2021 budget also called for a new program entitled “Gunslinger,” a new air-launched missile armed with a gun that would be designed for Air Force and Navy missions. But that appears to have a murkier future than the LongShot. “The Gunslinger program has yet to formally launch and, at this time, we have no information on when that may happen,” DARPA spokesman Jared Adams said in December. https://www.airforcemag.com/design-gets-underway-on-darpas-longshot-drone/

• 

  August 11, 2020 | International, Aerospace

  Support to pursue Hawaii-based missile defense radar continues after DoD drops funding

  By: Jen Judson WASHINGTON — Support is growing both in Congress and in the Pentagon to pursue a Hawaii-based ballistic missile defense radar that the Missile Defense Agency did not include in its fiscal 2021 funding request. Previous MDA budget requests in FY19 and FY20 asked for funding for the discriminating radar as well as another somewhere else in the Pacific. The plan in FY19 was to field the Homeland Defense Radar-Hawaii, or HDR-H, by FY23, which meant military construction would have taken place beginning in FY21. Then in FY20, MDA requested $247.7 million for the radar. Lockheed Martin received an award to develop the radar in December 2018. But in FY21, funding for both the Hawaiian radar and the Pacific radar was missing in the request. MDA Director Vice Adm. Jon Hill said in February, when the request was released, that the agency decided to hit the brakes on its plans to set up the radars in the Pacific, instead planning to take a new look at the sensor architecture in the U.S. Indo-Pacific Command region to figure out what is necessary to handle emerging threats. Hill noted that the area is covered by a forward-deployed AN/TPY-2 radar in Hawaii as well as the deployable Sea-Based X-Band radar. Additionally, Aegis ships with their radars are mobile and can be repositioned as needed to address threats in the near term, he added. Yet, over the summer, the Hawaiian radar gained traction in Congress via funding support in the House Appropriations Committee's defense subcommittee's version of the FY21 defense spending bill and the Senate Armed Services Committee's version of the defense policy bill. The House subcommittee injected $133 million to pursue the homeland defense radar in Hawaii, and the SASC added in $162 million to continue HDR-H development. The SASC also included language that essentially reminded the Pentagon that HDR-H was a response to a mandate in the FY18 National Defense Authorization Act to improve coverage for the threat of ballistic missiles in Hawaii. The HDR-H was also listed as an unfunded requirement for FY21 by Indo-Pacific Command. The SASC also directed the MDA to provide an updated plan that accounts for delays related to finding a site in Hawaii, noting it expects the Pentagon to fund the program in subsequent budget requests. During a presentation at the virtually held Space and Missile Defense Symposium on Aug. 4, Hill showed a slide listing focus areas for the agency in FY21. The presentation included the currently unfunded radar, third from the top of the list. “The potential for getting a radar onto Hawaii as part of another major sensor allows us to have that launch-all-the-way-to-intercept view out in a very large ocean area in the Pacific,” Hill said. The HDR-H is categorized as a focus area for the MDA “because if the [Defense] Department decides to move forward with HDR-H, then the HDR-H will be deployed as part of the U.S. homeland defense architecture against long-range threats,” Mark Wright, MDA spokesman, told Defense News in an Aug. 6 statement. The missile defense architecture “must evolve with advancements of the threat,” he added. “Space sensors do not replace but complement ground-based radars by providing track custody during radar coverage gaps. Having both terrestrial radar and space sensors provides dual phenomenology to accurately track and discriminate the threat as it continues to become more complex.” https://www.defensenews.com/digital-show-dailies/smd/2020/08/07/support-to-pursue-hawaii-based-missile-defense-radar-continues-after-dod-drops-funding/