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  16 janvier 2020 | International, Aérospatial

  Rolls-Royce develops world-first electrical technology for next-generation Tempest programme

  Over the last five years Rolls-Royce has been pioneering world-first technology that will contribute to the UK's next-generation Tempest programme. In an aim to be more electric, more intelligent and to harness more power, Rolls-Royce recognised that any future fighter aircraft will have unprecedented levels of electrical power demand and thermal load; all needing to be managed within the context of a stealthy aircraft. Before the launch of the Tempest programme, Rolls-Royce had already started to address the demands of the future. Back in 2014, the company took on the challenge of designing an electrical starter generator that was fully embedded in the core of a gas turbine engine, now known as the Embedded Electrical Starter Generator or E2SG demonstrator programme. Conrad Banks, Chief Engineer for Future Programmes at Rolls-Royce said: "The electrical embedded starter-generator will save space and provide the large amount of electrical power required by future fighters. Existing aircraft engines generate power through a gearbox underneath the engine, which drives a generator. In addition to adding moving parts and complexity, the space required outside the engine for the gearbox and generator makes the airframe larger, which is undesirable in a stealthy platform." Phase two of this programme has now been adopted as part of Rolls-Royce's contribution to the Tempest programme. As part of this journey, the company has been continuously developing its capabilities in the aerospace market, from gas turbine technologies through to integrated power and propulsion systems. The goal being to provide not only the thrust that propels an aircraft through the sky, but also the electrical power required for all the systems on board as well as managing all the resulting thermal loads. Rolls-Royce is adapting to the reality that all future vehicles, whether on land, in the air or at sea will have significantly increased levels of electrification to power sensors, communications systems weapons, actuation systems and accessories, as well as the usual array of avionics. The launch of phase one of the E2SG programme saw significant investment in the development of an integrated electrical facility – a unique test house where gas turbine engines can be physically connected to a DC electrical network. The launch of the second phase of the project in 2017 saw the inclusion of a second electrical generator connected to the other spool of the engine. It also included an energy storage system in the electrical network and the ability to intelligently manage the supply of power between all these systems. The two-spool mounted electrical machines allows, by combination of operation as either a motor or a generator, the production of a series of functional effects on the engine, including the transfer of power electrically between the two spools. As part of the E2SG programme, Rolls-Royce is investigating the feasibility of using dual spool generation to influence the operability, responsiveness and efficiency of the engine. Another key technology under development is the Power Manager intelligent control system, which uses algorithms to make real time intelligent decisions about how to supply the current aircraft electrical demand while optimising other factors including engine efficiency to reduce fuel burn or engine temperature to extend component life. Throughout the Tempest programme, Rolls-Royce will be continuing to mature the electrical technologies demonstrated by the E2SG programme, with a third phase of testing likely to include a novel thermal management system being integrated with the overall system, as well as more electric engine accessories. The company also intends to showcase a full-scale demonstrator of an advanced power and propulsion system. There will be new technologies in all parts of the gas turbine, including twin spool embedded generation to higher power levels, an advanced thermal management system, an energy storage system tailored to the expected duty cycle of the future fighter and an intelligent power management system which will be able to optimise the performance of both the gas turbine and the power and thermal management system. Press release issued by Rolls-Royce plc Defence Aerospace on January 9, 2020 http://www.airframer.com/news_story.html?release=73226

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  18 août 2022 | International, Aérospatial

  What the Hell Is Space Force Up To? Ronny Chieng Investigates

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  9 août 2019 | International, Aérospatial

  Royal Air Force Typhoon jets to receive key sensor upgrade

  By: Andrew Chuter WARTON — With a complex weapons integration program squared away, giving Royal Air Force Typhoon jets more punch, key sensors on the jet could see an upgrade. The RAF's test and evaluation squadron is already test flying the Litening 5 targeting pod in order to optimize its operation by Typhoon pilots. Work is also underway to update and improve the reliability of the jets Pirate passive infrared airborne track equipment, said Andy Flynn, BAE System's Typhoon capability director. Known as Project Centurion, the British late last year completed integration of MBDA's Meteor, Brimstone and Storm Shadow missiles on Typhoon in 47 months. At a cost of around £425 million, or $515.83 million, the program allowed the RAF to stand down the entire fleet of Tornado jets that had provided the primary strike capability. Flynn told reporters during a briefing at the company's Warton combat air site in northwest England Aug. 7 that the sensor work was “the next iteration of Centurion.” “Agile spiral development and keeping the aircraft relevant is the phase we are in. We have done the big leap and it's now about keeping it relevant,” he said. The Tornado was a two-seat aircraft, whereas the Typhoon is single seat. Flynn said the work on the Litening 5 was about easing pilot workload. “What we are doing now is getting the feedback from customer and operations teams on how to make that tasking simpler and really increase the cycle time on ops. We've already got Litening 5 pods up in the air as an iteration and we are seeking feedback from 41 Squadron [the test and evaluation squadron], ” he said. The plan is to get the enhanced capability “out to the front line by the end of next year,” said Flynn. Development phase work is also underway on a new iteration of Pirate as well improving the reliability and robustness of the sensor. “That work is in the development phase and we are doing that over the Autumn period. What we are doing on Typhoon overall is really enhancing the sensors capability as well making the workload easier for the pilot,” said Flynn. The sensor changes are a small part of a wider capability update on the Typhoon to keep aircraft relevant until they go out of service, currently set for 2040. On the horizon for the RAF is a new e-scan radar, known as Radar 2, which is being developed for the British by Leonardo; the new BAE Striker II helmet; and networked enabled weapons. But, Eurofighter, the Airbus, BAE, and Leonardo industrial partnership responsible for the development and production of the Typhoon, is also conducting a review of future potential updates to the fighter. Eurofighter announced at the Paris Air Show in June a deal valued at 53.7 million euros with the NATO Eurofighter & Tornado Management Agency, or NETMA, to undertake a long-term evolution review of the fighter and the EJ200 engine over the next 19 months. NETMA represents the British, German, Italian and Spanish governments. Flynn said there were more than 50 separate candidate technologies being considered by the evolution review. Some of those potential upgrades could also find themselves cross decking to the Tempest sixth-generation fighter now being proposed by the British. Clive Marrison, the industrial requirements director for Team Tempest, the industrial/government partnership leading the next-generation fighter work , said both jets could benefit from close development ties. “Typhoon could benefit from some of the technologies that Tempest is looking at and by the same token Tempest could benefit from some of the technologies that Typhoon is investing in,” said Marrison. For example: Some of the cockpit and helmet work BAE is doing might allow industry to offer some of those technologies back into Typhoon, said Marrison. While the BAE executives were looking into the future for British combat air capabilities, the Typhoon approaches a landmark of sorts to be celebrated. Sixteen years after taking delivery of its first Typhoon, the RAF is preparing to receive the final aircraft ordered for its fleet in the next few weeks, said Flynn. The final aircraft in a British order for 160 Typhoons made its test flight recently and is due to be handed over to the RAF in the coming weeks. Completion of the order leaves 24 aircraft destined for Qatar on the order book for BAE, although it is also building parts of the Typhoons sold to Kuwait by Eurofighter partner Leonardo. Three equipment sets have so far been completed at BAE's Samlesbury plant near Warton, destined for the Leonardo assembly site in Italy. Flynn said the Qatar build program was just getting underway. The 24 aircraft order will see deliveries start in 2022 with completion set for 2024. https://www.c4isrnet.com/global/europe/2019/08/08/royal-air-force-typhoon-jets-to-receive-key-sensor-upgrade/