23 février 2021 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité
Two sea power advocates in Congress are making the case to grow the Navy's budget, along with the Air Force and cyber capabilities, at the expense of the other services.
3 octobre 2024 | International, C4ISR, Sécurité
The enhancements will provide end users, including U.S. Department of Defense service components and the U.S. Special Operations Command, with IT services and solutions to support the warfighters.
22 juillet 2020 | International, Aérospatial
Seattle, July 20, 2020 /PRNewswire/ - Boeing [NYSE:BA] and Etihad Airways will use a 787-10 Dreamliner to test ways to reduce emissions and noise as part of the aerospace company's ecoDemonstrator program before the airline accepts delivery of the airplane this fall. The collaboration, which includes extensive sound measurement testing with industry partners, builds on a strategic sustainability alliance Boeing and Etihad formed in November 2019. "This is the latest program under Etihad's industry-leading strategic partnership with Boeing, focusing on innovating real-world solutions to the key sustainability challenges facing the aviation industry," Etihad Aviation Group Chief Executive Officer Tony Douglas said. "The ecoDemonstrator program is founded on innovation and sustainability — and these are core values for Etihad Airways, Abu Dhabi and the United Arab Emirates. Etihad and Boeing see a great opportunity to collaborate and share knowledge to minimize the impact of aviation on the environment." The ecoDemonstrator program utilizes commercial aircraft to test technologies that can make aviation safer and more sustainable now and into the future. The 2020 program, which will begin testing in August, is the first to use a Boeing 787-10. "Industry collaboration is a key aspect of Boeing's ecoDemonstrator program that enables us to accelerate innovation," said Stan Deal, Boeing Commercial Airplanes president and CEO. "We're proud to broaden our sustainability partnership with Etihad Airways by testing promising technologies that can reduce emissions, help commercial aviation meet our climate goals, and allow the industry to grow in a responsible manner that respects our planet and its natural resources." Boeing and Etihad will work with industry-leading partners, including NASA and Safran Landing Systems, to conduct aircraft noise measurements from sensors on the airplane and the ground. The data will be used to validate aircraft noise prediction processes and the sound reduction potential of aircraft designs, including landing gear, that are modified for quieter operations. In addition, a flight will be conducted during which pilots, air traffic controllers and an airline's operations center will simultaneously share digital information to optimize routing efficiency and enhance safety by reducing workload and radio frequency congestion. Test flights will be flown on a blend of sustainable fuel, which significantly lowers aviation's environmental footprint. The testing program is expected to last about four weeks before Etihad enters its Boeing 787-10 into service. Contact Saffana Michael Boeing Communications saffana.michael2@boeing.com Mobile: +97150 4590651 Paul McElroy Boeing Communications paul.mcelroy2@boeing.com Mobile: +1 425-283-7740 SOURCE Boeing View source version on Boeing Newsroom: https://boeing.mediaroom.com/2020-07-20-Boeing-and-Etihad-Broaden-Sustainability-Alliance-by-Testing-Innovations-on-ecoDemonstrator-787
16 janvier 2020 | International, Aérospatial
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