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February 11, 2020 | International, Aerospace, Naval

U.S. Navy’s Aircraft Launch Rail Gun Revealed

Guy Norris

Details of the U.S. Navy's new generation, electrically powered aircraft launch and recovery system, currently under test for the first time on the USS Gerald R. Ford (CVN-78) carrier, are visible in a large-scale model at the Singapore Airshow.

The Electromagnetic Aircraft Launch System (EMALS) is in development to replace the traditional steam piston catapult launch system on current carriers. The new configuration also includes the electrically powered Advanced Arresting Gear (AAG), which replaces the hydraulic arresting gear in use on the Navy's 10 Nimitz-class aircraft carriers.

The EMALS catapult, which is powered by a linear induction motor, is designed to accelerate aircraft more gradually than the steam system and put less stress on the aircraft. The system is also lighter and more flexible than the current design and is capable of launching a wider range of aircraft weights. The AAG is also designed for a broader range of aircraft, including UAVs.

The large-scale cutaway model shows the linear induction motors of the EMALs as well as the banks of rotary engines incorporated in the AAG. Fine control of the arresting forces is provided by a large induction motor, which is coupled to energy-absorbing water turbines.

Tests on the Ford, the eponymous lead ship of navy's first new class of carriers since the 1970s, are part of efforts to assess the performance of the technology for launch and landing operations. The system has proved more challenging to develop than expected, and improvements are underway to boost reliability for the required sortie generation rate. The service is evaluating aircraft compatibility before the scheduled deployment of the Ford in 2022.

https://aviationweek.com/shownews/singapore-airshow/us-navys-aircraft-launch-rail-gun-revealed

On the same subject

  • Boeing wants government to force Northrop to partner on ICBM replacement

    September 18, 2019 | International, Aerospace

    Boeing wants government to force Northrop to partner on ICBM replacement

    By: Aaron Mehta NATIONAL HARBOR, Md. — Months after announcing it would not bid on the Air Force's ICBM replacement program, Boeing is officially lobbying both Congress and the service to force a shotgun marriage with Northrop Grumman, against the latter company's will. Frank McCall, Boeing's director of strategic deterrence systems, told reporters Tuesday that the company was actively seeking “government intervention” on the Ground Based Strategic Deterrent (GBSD) program, one which would require Northrop to add Boeing as at least a major sub-contractor, if not a co-equal partner. “We think clearly it's time for the Air Force or other governmental entities to engage and direct the right solution. Northrop has elected not to do that,” McCall said during the Air Force Association's annual conference. “So we're looking for government intervention to drive us to the best solution.” Technically, GBSD is still an open competition. However, Northrop stands as the only competitor still making a bid. Lockheed Martin was knocked out in late 2017, and Boeing dropped out of the competition in July. Boeing claimed Northrop's acquisition of solid-fueled rocket motor manufacturer Orbital ATK, now known as Northrop Grumman Innovation Systems, gave the competitor an unfair advantage. Boeing has since made overtures toward Northrop, arguing that a partnership involving the two companies would benefit the development of GBSD. But Boeing on Friday announced that Northrop had rejected any teaming attempts. Now, it seems, the company has decided to stop playing nice and start getting real. McCall reiterated that Boeing would not be bidding as a prime on the GBSD request for proposal as is. He also would not rule out the possibility of launching a protest with the Government Accountability Office, should the Air Force not force Northrop to accept Boeing as part of its team. “I'm not spending any time thinking, ‘what if it doesn't work.' We're going to make it work,” he said. Both Boeing and Northrop are currently under contract for a tech maturation phase, which runs into next year. Asked whether the company was worried whether its TMRR contract could be cancelled early given its stance that it will not bid, McCall said: “Certainly that's a concern." However, “the service is maintaining our work," he added. They continue to accept our deliverables, continue to fund our contract. So, I think we're in good shape with the service.” Because both teams are under that development contract, McCall argued that the Air Force should take the two teams and let them begin sharing information, with the service making the final decision on what pieces of each bid would work best when combined. “What I am suggesting is the Air Force pull us in a room together and say ‘you've got 30 days to go figure out what is the right integrated baseline for the country to move forward with,'” he said. “While we have offered to Northrop a menu of things to choose from, we think the Air Force is really in a better position to go through that menu, go through the Northrop menu, and select the best option for the future.” Should the Air Force not choose that route, McCall was open that Boeing has begun engaging members of Congress to circumvent the Pentagon and force its hand. He pointed to Sen. Doug Jones of Alabama as someone who has already raised shown support for Boeing's position. McCall declined to name others, but should this turn into a legislative fight, it could come down to Boeing's supporters – with strongholds in Alabama, Washington and Missouri – versus those of Northrop Grumman. A wild card may come in the form of Lockheed Martin, who was announced as part of a ten-company national team for Northrop's bid earlier this week; as the world's largest defense firm, Lockheed could bring to bear significant firepower in Congress, and would likely be happy to knock Boeing out of the ICBM game. The Boeing executive declined to say what specific parts of the GBSD program Boeing was targeting should it end up with Northrop, but indicated that nuclear command and control — part of Lockheed's workshare under Northrop's planned team — would be one aree where Boeing's experience could come into play. Asked what percentage of workshare on the program Boeing would be satisfied with should the team-up happen, McCall declined to give a number, saying: “We told Northrop, we don't care if you're the prime or we're the prime. We're not dictating a workshare percentage.” https://www.defensenews.com/digital-show-dailies/air-force-association/2019/09/17/boeing-calls-for-government-intervention-on-icbm-replacement-fight

  • US Army readies new artillery strategy spurred by war in Ukraine

    August 1, 2023 | International, Security, Other Defence

    US Army readies new artillery strategy spurred by war in Ukraine

    The US Army will deliver a strategy for conventional fires on the battlefield by the end of the year.

  • Fonds européen de défense : 100 millions d'euros pour l'eurodrone

    March 26, 2019 | International, Aerospace

    Fonds européen de défense : 100 millions d'euros pour l'eurodrone

    Par Justine BOQUET La Commission Européenne a annoncé qu'un budget global de 525 millions d'euros avait été débloqué au titre du fonds européen de Défense, dont 100 millions devraient être attribués pour le programme Eurodrone. La Commission Européenne a détaillé le 19 mars la répartition du budget du fonds européen de défense pour la période 2019-2020. Un budget initial de 500 millions d'euros a ainsi été approuvé. A cela s'ajoute « un montant supplémentaire de 25 millions d'euros [qui] a été affecté à l'appui aux projets de recherche collaboratifs dans le domaine de la défense en 2019 », rapporte la Commission Européenne. Deux projets ont d'ores et déjà été sélectionnés, lesquels bénéficieront d'un soutien financier émanant du FED. Parmi eux, figure l'eurodrone. Le drone male européen, développé par Airbus, Dassault et Leonardo, obtient ainsi un financement de 100 millions d'euros. Le programme de communications militaires ESSOR hérite lui d'une enveloppe de 37 millions d'euros. L'institution a par la même détaillé les domaines qui devraient hériter d'un financement, dans le but de soutenir la BITD européenne et pour permettre aux Etats Membres de se doter d'équipements leur permettant d'assurer leur sécurité. « L'accent sera mis sur des domaines tels que la technologie des drones, la communication par satellite, les systèmes d'alerte rapide, l'intelligence artificielle, la cyberdéfense ou la surveillance maritime », précise la Commission. Afin de sélectionner les programmes qui bénéficieront d'un soutien européen, l'Union Européenne réalisera un appel à propositions pour 21 projets sur la période 2019-2020. Parmi les axes technologiques soutenus par la Commission Européenne, on retrouve la prévention des menaces NRBC et le domaine de l'anti-drones, volet qui hérite d'un montant de 80 M€. La cybersécurité, la cyberdéfense, la surveillance de l'espace, les capacités d'alerte rapide et de surveillance maritime bénéficieront d'une enveloppe globale de 182 M€. « 71 millions d'euros soutiendront la mise à niveau ou le développement de la prochaine génération de capacités de frappe de précision au sol, de capacités de combat au sol, de capacités de lutte aérienne et de futurs systèmes navals », ajoute la Commission Européenne. Pour soutenir le domaine de l'intelligence artificielle, de la réalité virtuelle et des cybertechnologies, l'Union Européenne débloquera une enveloppe de 27 millions d'euros, laquelle permettra par ailleurs d'appuyer les PME dans la conduite de leurs projets. http://www.air-cosmos.com/fonds-europeen-de-defense-100-millions-d-euros-pour-l-eurodrone-121705

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