17 août 2018 | International, Aérospatial

UK fighter concept emphasizes stealth, next generation sensors

BY TOM RISEN

Britain wants to build a twin-engine stealth fighter jet that the Defense Ministry says would enable the United Kingdom to stay competitive in air-to-air combat technology and maintain its domestic fighter industry.

U.K. Defense Secretary Gavin Williamson unveiled a full-scale model of the Tempest at the Farnborough Airshow in July as a commitment that Britain would remain “a world leader in the combat air sector.”

The U.K. contractors chosen to design the plane must first present a business case for the fighter to the ministry by the end of the year to begin the approval process for funding. The ministry has promised to draw 2 billion pounds ($2.6 billion) for the Tempest over several years from the ongoing Future Combat Air System Technology Initiative enacted in 2015 that ends in 2025 to develop a successor to the twin-engine Eurofighter Typhoon.

Team Tempest, the name for the government agencies and companies working on the project, shared limited details about the design in progress beyond the concept they showcased. With their near diamond shape, the Tempest wings resemble those of the YF-23 stealth fighter demonstrator built in 1990 for the U.S. Air Force by Northrop and McDonnell Douglas, notes Adam Routh, an aerospace researcher at the Center for a New American Security in Washington, D.C. The YF-23 was flown in 1990 but lost the competition for the Air Force contract to what became the Lockheed Martin F-22 Raptor, which ended mass production in 2011.

The F-22 engines include thrust vectoring to maneuver the plane around enemy aircraft at close range, which the YF-23 lacked. Thrust vectoring engines were not presented as part of the Tempest concept, possibly because “next generation stealth and guided missiles may undermine the benefits of maneuverability by allowing planes to attack from a significant distance,” Routh says. Pilots of future air-to-air combat won't often find themselves in dogfights won with maneuverability, Routh says, because guided missiles and stealth “will allow aircraft to engage opposing aircraft from a significant distance.”

Full article: https://aerospaceamerica.aiaa.org/uk-fighter-concept-emphasizes-stealth-next-generation-sensors

Sur le même sujet

  • UK Conservatives propose far-reaching defense review if elected

    3 décembre 2019 | International, Aérospatial

    UK Conservatives propose far-reaching defense review if elected

    By: Andrew Chuter LONDON — The British government will conduct an extensive review integrating defense, security and foreign policy if the Conservative Party wins the upcoming general election, Prime Minister Boris Johnson says. The Conservatives are offering what appears to be a fundamental review of Britain's armed forces, with Johnson saying the initiative will lead to a “huge technological upgrade of security forces to keep Britain safe and strengthen NATO.” The review is scheduled to get underway next year and be led by the Prime Minister's office, said Johnson. Johnson's promise of a strategy shift in policy comes as London prepares to host NATO's 70th anniversary summit on Dec. 4, dubbed by alliance officials as a “leaders' meeting.” National media here reported Johnson as saying it would be the “deepest review of Britain's defense, security and foreign policy since the end of the Cold War. “It will extend from the armed forces to the intelligence services, counter-terrorism forces and serious organized crime. It will also consider Britain's foreign policy, how we can best use our huge expenditure on international development, and the role of technology,” he said. “We must use money better, undertake a huge technological upgrade of all our security forces so they are ahead of hostile powers, terrorists and organized crime — and unlike previous exercises, we must develop an integrated plan for all forces engaged in security,” he is reported as saying. Investment in space capabilities for the Royal Air Force appears to one of the big items on Johnsons agenda according to the reports. Creating a space command was one of just a small handful of defense policy initiatives announced in the Conservative manifesto released just over a week ago. Britain has held two full strategic defense and security reviews and a mini review, known as the defence modernization program, since the Conservatives came to power in 2010. The precedent now is to hold a review every five years. The last review, in 2015, restored capabilities like equipping the Royal Air Force with maritime patrol aircraft but failed to fund the uptick in equipment programs adequately. A review was expected next year whoever wins the election. The rival Labour Party has promised the same in their election manifesto. John Louth, the director of the defense, industry and society program at the Royal United Services Institute think tank in London, said Johnson's proposed review appears to lay the ground for a far more radical rethink than previous strategic defense and security proposals. “He's talking about a once-in-a-generation review with everything on the table. Ideas on re-rolling the RAF more toward space, that sounds like something quite profound. Whether that becomes a reality – who knows, but for the moment everything could be in the mix. From what we know they are almost talking about a zero-based budgeting exercise with everything up for grabs,” said Louth. “Whether it is political rhetoric which will be quickly forgotten is difficult to say, but what will be interesting is to see who is actually undertaking the review and what are their terms of reference,” he said. The RUSI analyst reckons a comprehensive review will need to take the long view. “What does technology look like over the next 15-20 years, how do we fund and how do we access those technologies? Also, if we are going to be potentially short of thousands of personnel, how might initiatives like sponsored reserves help fill the gap?” said Louth. Johnson's review announcement comes against a background of rising tensions in the Ministry of Defence where service chiefs are already said to be fighting amongst themselves over future funding levels for the military. One government relations consultant, who asked not to be named, said there was nothing unusual about infighting among the services for funds but the backstabbing was fiercer and earlier in the budget cycle than usual. Louth said what was challenging now is the “funding doesn't allow everything on the shopping list, and the personnel numbers in the armed forces don't allow them to man the equipment they are already committed to, so something will have to give.” https://www.defensenews.com/smr/nato-2020-defined/2019/12/02/uk-conservatives-propose-far-reaching-defense-review-if-elected/

  • Czech Republic to boost spending on land weapons in 2019

    28 novembre 2018 | International, Terrestre

    Czech Republic to boost spending on land weapons in 2019

    By: Jarosław Adamowski WARSAW, Poland — Czech Defence Minister Lubomir Metnar has announced the ministry's acquisition plans for 2019. Next year, the country aims to purchase 210 infantry fighting vehicles, multi-purpose helicopters, and mobile air defense radars (MADRs), among other systems. Metnar said that in 2018 the ministry managed to conclude deals to purchase weapons and military equipment worth more than 14.5 billion koruna (US $635 million). There is a consensus across the country's political spectrum that the country's defense spending must be further increased in the coming years, the minister said, as reported by local daily Denik. The planned acquisitions are largely focused on replacing the military's Soviet-designed gear with new equipment made by Western allies and Czech manufacturers. The region-wide trend has accelerated following Russia's military intervention in eastern Ukraine and its annexation of the Crimean peninsula in 2014. Meanwhile, Lt. Gen. Ales Opata, the Chief of the General Staff of the Czech Armed Forces, said at a joint press conference with Metnar that the key to military modernization was the upgrade of the country's land forces. “I don't only mean [acquisitions of] tanks or infantry fighting vehicles, but also robot systems, reconnaissance and combat unmanned vehicles,” Opata said. https://www.defensenews.com/global/europe/2018/11/21/czech-republic-to-boost-spending-on-land-weapons-in-2019

  • La Suisse a reçu l’approbation du Département d’État pour acheter des combattants

    5 janvier 2021 | International, Aérospatial

    La Suisse a reçu l’approbation du Département d’État pour acheter des combattants

    Le Département d'État américain a approuvé la vente potentielle d'avions de combat et du système Patriot à la Suisse. Cette décision fait suite au référendum qui a eu lieu dimanche dernier en Suisse. Lors d'un vote national, les Helvètes ont accepté d'acheter de nouveaux avions de combat pour remplacer les machines Northrop F-5E / F Tiger II et Boeing F / A-18C / D Hornet en service. Deux fournisseurs d'outre-mer et trois européens se sont disputés le contrat. Les États-Unis proposent à la Suisse des avions Lockheed Martin F-35A Lightning II et Boeing F / A-18 Super Hornet. En prévision d'une éventuelle décision, les Américains ont déjà accepté d'exporter lesdites armes. Dans le cas des avions F-35A, on parle de la vente potentielle de 40 machines, ainsi que de pièces détachées et d'armes, pour un montant d'environ 6,58 milliards de dollars. 40 chasseurs F / A-18E / F Super Hornet avec un package similaire ont été évalués à 7,45 milliards de dollars. Parallèlement, le département d'État américain a également approuvé la vente de systèmes de missiles de défense aérienne et antimissile Patriot à la Suisse. Cinq batteries sont évaluées à 2,2 milliards de dollars. Aucune partie ou la totalité des œuvres contenues dans la revue ne peut être reproduite et diffusée ou diffusée ultérieurement sous quelque forme et par quelque moyen que ce soit (y compris électronique ou mécanique ou autre ou dans tout domaine d'utilisation), y compris la copie, la numérisation au sens large, la photocopie ou copie, y compris publication sur Internet – sans le consentement écrit de Gremi Media SA. Toute utilisation ou utilisation des œuvres en tout ou en partie sans le consentement de Gremi Media SA ou des auteurs en violation de la loi est interdite sous peine de sanction et passible de poursuites. https://www.mercatoshow.com/la-suisse-a-recu-lapprobation-du-departement-detat-pour-acheter-des-combattants/

Toutes les nouvelles