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  July 30, 2020 | International, Aerospace

  Can The UK Afford To Develop Its Tempest Optionally-Manned Stealth Fighter?

  Seventy-six years after higher-performing Tempest fighters joined the Royal Air Force's Hawker Typhoons in harrying Nazi air and ground forces during World War II, the United Kingdom is once again counting on a warplane called the Tempest to replace succeed its Typhoons. London has big ambitions for its Team Tempest program kicked off in 2018, which aims to develop a sixth-generation optionally-manned stealth fighter (ie. it can fly without an onboard pilot if necessary) to enter service around 2040 to replace its current fleet of Eurofighter Typhoon jet fighters. Unfortunately, those ambitions may simply not square with the money available for “Combat Air” programs in the British defense budget according to a new paper published by the Royal United Services Institute (RUSI), the UK's premier defense think tank. The author of Combat Air Choices for the UK Government, defense analyst Justin Bronk, argues that putting U.K's strategic goals in line with its available financial means may require procuring more stealth jets in the short term, while in the long term reconceiving the optionally-manned Tempest as a more affordable unmanned (drone) combat systems. British Combat Air Power, circa 2020 Today's Royal Air Force draws its primary combat strength from a projected fleet of 145 Eurofighter Typhoon fighters deployed in seven operational squadrons concentrated in two lightly-defended airbases, as well as a testing and training squadron each. Developed by a British/German/Italian consortium (BAE/Airbus/Leonardo respectively), the Typhoon is an advanced 4.5-generation fighter originally focused on a high-speed and high-altitude air-to-air combat, but which has since integrated short- and long-range precision ground attack capabilities. The RAF plans to further upgrade its Typhoons with an advanced CAPTOR-E active electronically scanned array radar which will substantially improve the type's reconnaissance, air-to-air, air-to-ground and self-defense capabilities. But because the Typhoon isn't a stealth aircraft, it can't safely penetrate airspace interdicted by long-range surface-to-air missiles like Russia's S-400 system until those systems are suppressed or destroyed. That job is set aside for 48 Lockheed F-35B Lightning II stealth jump jets shared by the Royal Navy's Fleet Air Arm and the Royal Air Force, of which 35 have been delivered so far. Though less agile than the Typhoon, the Lightning's low radar cross-section allows it to penetrate hostile airspace in comparative safety, while its powerful networked sensors enable it to locate and destroy air defense batteries and other key targets—or shuffle targeting data to non-stealth platforms a safe distance away to execute a strike Unfortunately, as discussed in this article by David Axe, 48 F-35s may not be enough to perform the anti-air defense mission in a hypothetical high-intensity conflict with Russia, particularly when the Royal Navy will want a significant chunk of those jets deployed on its Queen Elizabeth-class carriers to support naval operations. Lastly, the UK is finishing procurement of sixteen MQ-9B Protector drones which can cost-efficiently perform long-endurance surveillance and on-call strike missions in a counter-insurgency context. However, the MQ-9B lacks the stealth or agility to survive in a high-intensity conflict. The Tempest, not by Shakespeare In July 2018, the UK launched Team Tempest, a project to develop an optionally-manned sixth-generation stealth fighter that could replace the Typhoons as they age out of service in 2040. A mockup of a sleek twin-tail stealth design was unveiled at the Farnborough Airshow in July 2018, as well as a presentation highlighting concepts including adaptive cycle turbofans built by Rolls-Royce, revolutionary electrical power generation capabilities, integration of directed-energy (ie. lasers or microwaves) and hypersonic weapons, AI that could assist the pilot or even fly the plane without one, and control of swarms of supporting drones. London has committed £2 billion ($2.6 billion) in initial funding to Tempest, and Italy and Sweden have joined in as partners via companies Leonardo and Saab. Involvement of the Netherlands has also been rumored. In 2020, the British government announced it had recruited seven more companies into the program, and that the number of persons working on Team Tempest would increase from 1,800 to 2,500 by 2021. Tempest is implicitly a rival to the French-German-led Airbus/Dassault Future Combat Air System project which also includes Spain, though there has been tentative suggestions that FCAS and Tempest could be merged. According to Bronk, because modern combat aircraft have grown so immensely expensive to develop, and retaining a core of specialized engineering expertise is so vital, the fate of the Tempest program may determine the future of the UK's military aviation sector, which currently counts 46,000 jobs. “Tempest is the only way that the UK can retain a national combat aircraft design and manufacturing capability, and is currently the assumed source of a replacement capability for Typhoon by 2040... A failure of Tempest to generate significant airframe production contracts would also all but guarantee the demise of UK defence industry combat aircraft design and manufacturing capacity.” In other words, a failed Tempest project could relegate British companies to building components for other jets like the F-35 instead of for domestic jet fighter designs. The Budgetary Crunch Unfortunately, based on other stealth fighter programs abroad, completing development of an optionally-manned Tempest fighter would likely cost at least £25 billion ($32.5 billion) according to Bronk. Already, he writes there is “no headroom” to develop Tempest in the £18 billion set aside in the defense budget for Combat Air over the next decade, nor even to acquire more than 48 F-35s. The paper outlines some ways the Ministry of Defense could reallocate funds, arguing the RAF should do a “large-scale culling” of capabilities that wouldn't be survivable in a conflict with Russia, namely slow-moving intelligence/surveillance aircraft (ISTARs) and transport planes and helicopters. Additional F-35 purchases could be of the cheaper land-based F-35A model, which besides has superior performance. And older, more limited-capability Typhoon Tranche 1 aircraft could be retired early in the late 2020s. Nevertheless, completing Tempest would still likely require a large injection of funds outside of the regular defense budget. Instead, the report argues Tempest would likely become much more affordable as a stealth unmanned combat air vehicle (UCAV). Indeed, analysts are debating whether even the United States should choose to go that route for its next generation fighter. Removing a pilot achieves major weight savings as cockpit, ejection and life support systems can be trimmed away. The UK has already developed the Taranis stealth UCAV prototype, showing it already has a knowledge base with such technology. Furthermore the paper argues that unlike manned aircraft, closer to 100% of drones can remain available for operational missions. This is because pilots can do all of their training in simulators and units don't need to be rotated out of the line to rest and recover. That would mean both that a smaller number of UCAVs would need to be procured than jet fighters, and fewer personnel would be required to maintain them. “Cost savings derive from the significantly reduced airframe complexity, fleet size, training, testing and certification requirements compared to a piloted aircraft development effort... Without the need to rotate squadrons, airframes and personnel for training, maintenance, deployment and rest cycles, UCAVs offer significantly more operationally ready airframes from a given fleet size.” Admittedly, a Tempest UCAV would be less profitable for British defense industry. “The lower production volumes and rates which make UCAVs attractive from a military capability standpoint also greatly reduce potential profits per customer for industry,” Bronk concedes. Making the leap from manned to unmanned combat aircraft comes with other challenges. One is the need to harden UCAVs against hostile cyber- and electronic-warfare that could disrupt the command link. That likely includes building in autonomous AI capability so that UCAV can complete missions without relying on human direction. Especially in lower-intensity conflicts, it may be preferable to have a human pilot who can judge better from context whether a target is civilian or military. And air forces led by fighter pilots may resist the idea of replacing manned aircraft with unmanned ones. Regardless of whether one agrees with the RUSI report's recommendations, it seems clear that London will need to make some difficult choices in the years ahead as it balances the desired to field an effective air force today with investing in new technologies for tomorrow. https://www.forbes.com/sites/sebastienroblin/2020/07/30/can-the-uk-afford-to-develop-its-tempest-optionally-manned-stealth-fighter/#4452a87249b9

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  June 23, 2020 | International, Aerospace

  Germany First To Modernize Eurofighters With AESA Radar

  Tony Osborne June 22, 2020 Germany is set to become the first of the Eurofighter Typhoon partner nations to retrofit an active, electronically scanned array (AESA) radar, a move that should bolster the fighter's export potential. The German Parliament has given a green light for Berlin to spend €2.8 billion ($3.1 billion) to install the Euroradar consortium's Captor-E radar in all—around 106—of the German Air Force's Tranche 2 and 3 aircraft from around 2023. Contracts should be signed in the coming weeks. Hensoldt will be the design authority for the retrofit program Germany is receiving the Mk. 1 version of the Captor-E AESA Export customers will receive Captor-E first. Kuwait has ordered 28 aircraft, and Qatar 24, and a batch of Kuwaiti aircraft will be delivered this year. But program officials believe that with the AESA finally receiving partner nation backing, the Typhoon's chances in competitions closer to home may have moved up a notch. AESA-equipped Typhoons are proposed for both Finland and Switzerland. But the radar's capabilities could not be evaluated when the fighter took part in trials in those countries, as the participating aircraft were not fitted with it; its competitors were. All four Eurofighter partner nations, Germany, Italy, Spain and the UK, supported development of the radar, done by a consortium of Leonardo, Hensoldt and Indra, but have been reluctant to make the retrofit investment. That is due in part to budgets, but also reflects their satisfaction with the currently installed mechanically scanned Captor. The AESA, however, boosts radar performance and range, giving the aircraft a sensor that can match the performance of the MBDA Meteor beyond-visual-range air-to-air missile. A mechanical repositioner helps widen the radar's field of view to around 200 deg., from 120 deg. with the existing mechanically scanned radar. For the German retrofit program, Hensoldt will take a leading role in the production and delivery of the radars and act as the design authority, while Airbus will act as the test and integration lead. “With this decision, Germany is taking on a pioneering role in the field of key technology for the Eurofighter for the first time,” says Hensoldt CEO Thomas Muller. “It is a signal for Europe that Germany is investing in a technology that is of crucial importance for European defense cooperation.” Airbus Defense and Space CEO Dirk Hoke says the addition of the radar will increase the mission effectiveness of the aircraft and help integrate it with the Franco-German Spanish Future Combat Air System. Leonardo, which led Captor-E development, will provide support to Hensoldt in its role as design authority. Leonardo will also supply the radar's processor. Three different versions of the Captor-E have been developed or are under development. The German retrofit program calls for the installation of the Mk. 1 radar, which has been developed from the Mk. 0 radar that will be delivered to Kuwait and Qatar. The Mk. 1 adds new modes and a multichannel receiver. Along with being retrofitted to the German Tranche 2 and 3 aircraft, it also likely will be fitted to the 38 new-build aircraft planned under Berlin's Quadriga buy to replace its existing Tranche 1 Eurofighters, which lack the computing and electrical power for an AESA installation. Work has also begun on the Radar 2 being developed for the UK, which will feature an electronic attack capability. It is expected to enter service in the mid-2020s, and the UK plans to install it on its Tranche 3 model aircraft. Spain too is planning a retrofit program with the Mk. 1 radar, but also limited to its Tranche 3 fleet. Airbus revealed last November, however, that the novel coronavirus pandemic appears to have delayed Madrid's plans. An AESA has been part of the Eurofighter's development road map for around 15 years. The consortium had originally hoped that it could form part of the Tranche 3 fleet. The capability was also part of the consortium's ultimately unsuccessful offer for India. But it was not until 2014 that the first Captor-E development radar began flying in the aircraft, making an appearance at the 2014 Farnborough Airshow. The AESA radar capability is added through the Eurofighter's Phase 3B Enhancement (P3E(b)) package that will be delivered to Kuwait. Leonardo completed flight trials in support of the Mk. 0 radar development and P3E(b) in late May. Along with the Quadriga purchase, known in Germany notionally as Tranche 4, the country is also planning to use the Eurofighter, as well as the Boeing F/A-18 Super Hornet, to replace the Panavia Tornado fleet, although these plans are subject to parliamentary approvals that could come as late as 2022-23 (AW&ST May 4-17, p. 50). Egypt is also reportedly interested in purchasing up to 24 Eurofighters, possibly as part of a multibillion euro procurement from Italy that also includes jet trainers, helicopters and warships. https://aviationweek.com/defense-space/sensors-electronic-warfare/germany-first-modernize-eurofighters-aesa-radar