16 août 2023 | International, C4ISR, Sécurité
U.S. Army officials are seeking industry input on a fledgling initiative that would require companies to disclose the provenance of their artificial intelligence algorithms.
7 décembre 2023 | International, Aérospatial
More than 100 Swedish pilots will attend two schools in Italy, according to a cooperation agreement between the two countries' air forces.
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
19 juin 2018 | International, C4ISR
WASHINGTON ― A new RAND report assessing the proliferation of unmanned aerial vehicles suggests existing export controls for drones may hurt the U.S. more than it helps. Limiting U.S. drone exports has left a hole in the global market for the technology, especially in historically U.S.-dominated Middle East markets, which has been readily filled by U.S. competitors — specifically China and Russia. The Trump administration recently unveiled a new set of export policies regarding military technology in an attempt to facilitate the transfer of military technology, but the changes do not change the status of drones under the Missile Technology Control Regime, or MTCR. How does the MTCR work? The MTCR is a voluntary export control consortium of 35 nations designed to prevent signatories from proliferating longer-range cruise and ballistic missile technology. The arms control regime was extended to UAVs because early iterations of drones were considered a subset of cruise missile technology due to their active guidance system. The regime divides missiles into two categories. Category I items are capable of delivering a 500 kg payload more than 300 km. The sale of category I systems is restricted by a “strong presumption of denial,” meaning they are only exported in rare circumstances. The MQ-9 Reaper, RQ-4 Global Hawk and MQ-4 Triton are well-known unmanned systems that fall under this category. Over the past several years, U.S. partners such as Jordan, Saudi Arabia and UAE were denied requests to purchase American drones, and have since turned to China to purchase comparable systems. Trump administration officials have been attempting to alter the regime by adding new languagethat would drop any vehicle that flies under 650 kilometers per hour to category II systems. This would make all but the most advanced U.S. systems available for international sale. For example, the MQ-9 Reaper clocks in with a cruise speed of 230 mph or 370 kph, according to an Air Force facts sheet. Drone proliferation RAND found that 10 nations operate category I drones, and more than 15 operate near-category I systems that register just below the MTCR's payload and distance restrictions. The report says increased proliferation rates are due to a handful of countries, specifically China, Israel and the United Arab Emirates, who are not party to the MCTR. More countries are expected to procure drones, which pose a “growing threat to U.S. and allied military operations,” the report says. While category I systems can deploy missiles and other guided munitions, their main threat lies in “their ability to conduct intelligence, surveillance, and reconnaissance (ISR) operations against U.S. forces prior to hostilities,” according to RAND. “Adversaries that would otherwise have difficulty detecting U.S. force deployments, monitoring U.S. operations, and maintaining targeting data on U.S. units can employ UAVs to maintain situational awareness of U.S. capabilities” The report identifies Russia, China and Iran as unfriendly nations that will seek to utilize drones to complicate U.S. military operations. For example, China and Saudi Arabia recently agreed to set up a UAV manufacturing plant in Saudi Arabia for up to 300 new UAVs, and Italy will receive 20 Hammerhead UAVs from the UAE. The coproduction of regional drone factories “could further exacerbate the proliferation of large UAVs to the degree that these systems are exported to other nations,” according to RAND, and that hurts U.S. industry. A U.S.-sized hole Voluntarily restricting U.S. drone exports have allowed competitors to establish themselves in a market Rand expects to “grow from about $6 billion in 2015 to about $12 billion in 2025.” RAND expect export controls to have a negative impact on the U.S. industrial base, something those in industry already know. “What you are enabling the competition to do is not just to sell some hardware,” Linden Blue, General Atomic's chief executive, told reporters during an Aug. 16, 2017 roundtable at the company's headquarters in Poway, California. “You're enabling it to build a customer base for at least 20 years, I would say. You're enabling them to build a logistics system. It will take them many years to get to where we are right now, but you're helping them start out. They should be very thankful.” https://www.defensenews.com/newsletters/unmanned-systems/2018/06/18/strict-export-regulations-may-be-costing-us-industry-billions-in-foreign-sales/