A220 : les fournisseurs d’Airbus toujours sous pression pour réduire leurs coûts de 20 %

On the same subject

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  July 4, 2018 | International, Aerospace, C4ISR

  UK must compete future surveillance aircraft procurement, parliament states

  Gareth Jennings The United Kingdom must hold a fair and open competition before selecting any new surveillance aircraft to replace its current Boeing E-3D Sentry airborne warning and control system (AWACS), the country's parliament has said. The intervention by the Defence Committee followed earlier media reports that the Ministry of Defence (MoD) had already decided to procure the Boeing E-737 Airborne Early Warning and Control (AEW&C) aircraft to replace the Royal Air Force's (RAF's) increasingly unserviceable and expensive E-3Ds. “The chairman of the Defence Committee has written to the Minister of Defence Procurement to request that any requirement for replacing the UK's AWACS aircraft be put out to a competitive tender, rather than bought ‘off-the-shelf' with no competition taking place,” the committee declared on 3 July, adding: “On the possibility of Sentry being replaced with a new system, the [committee] notes the advantages of a competitive tender in terms of maximising value for money and allowing proper consideration of a range of alternatives. The committee also considers that a competition is particularly appropriate in this case, as there are viable alternatives available, which deserve to be given fair consideration.” The RAF currently has six E-3Ds in its operational fleet, with the type having entered service in 1991. While other operators of the type have benefited from regular upgrades, the RAF's fleet has fallen behind in terms of capabilities due to a lack of investment. In January 2017, the fleet was temporarily grounded due to an electrical fault, and despite an announcement in the Strategic Defence and Security Review (SDSR) of 2015 that the fleet would be upgraded and extended from 2025 to 2035, the legacy Boeing 707 host airframe is becoming too expensive to sustain and an alternative is understood to be being sought. http://www.janes.com/article/81497/uk-must-compete-future-surveillance-aircraft-procurement-parliament-states

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  August 14, 2019 | International, Aerospace

  What could a military do with this flying saucer?

  By: Kelsey D. Atherton This may be a flying saucer, but don't call it a UFO. Carefully named, the All DIrections Flying Object, or ADIFO, is instead a saucer-like contraption, a flying prototype built at exploring the aerodynamic potential of an alien craft. It is, at its core, an omnidirectional flying wing built around a quadcopter with jets attached. Its designers see a future for the airframe as an unmanned combat aerial vehicle. In a video posted July 1, a narrator discusses the design process and aerodynamics of the craft. Like many VTOL tools built on a quadcopter frame, ducted fans provide initial lift and mobility at low altitudes and low speeds. The addition of vectored jets on the rear of the craft, combined with four vertical vents and four side-facing vents, promising greater maneuverability at high speeds. The ADIFO is the invention of Romanian engineer Razan Sabie in conjunction with Iosif Taposu, a scientist with a long career in aerospace research for the Romanian government. “The aerodynamics behind this aircraft is the result of more than two decades of work and is very well reasoned in hundreds of pages and confirmed by computer simulations and wind tunnel tests,” Sabie told Vice, in the pair's first American interview. That story explores both the specific nature of the ADIFO, and the long and mostly failed history of flying saucer design. Like many other ideas for the first decades of aviation, the possibility of operating the craft without a human on board opens up greater potential in what an airframe can actually do. Human pilots are subject to the limitations of a body and perception, and a flying disk changing directions suddenly at high speed is not the ideal place for a human to be. Uncrewed craft can take on novel forms, and execute turns and twists beyond those human limits. While maneuverability is likely the primary selling point for a future role as combat aircraft, the smooth and fin-free form could easily have stealth characteristics built in, and could be further adapted by a dedicated team to fully realizing that stealth flight. What might a military planner or designer do with such a machine? The proof-of-concept offers little in the way of information about storage space or sensors. With wide enough lenses, a handful of cameras could match the circular symmetry of the vehicle and provide and omnidirectional surveillance presence. The high speeds and potentially low radar profile suggest a role akin to earlier, Cold War spy planes, taking specific pictures in contested space and returning before anti-air systems can act. And as with any aircraft, the potential is likely there for it to release an explosive payload, taking the flying saucer from an extraterrestrial fear to a terrestrial threat. ADIFO might not be the future of anything. The project's home page says the team is still attracting partners, and aviation history is littered with proofs-of-concept that failed to materialize in a meaningful way. Yet there is something to the idea of a flying saucer working the moment it no longer has to transport a human. It is an old aviation frontier that likely warrants further exploration. https://www.c4isrnet.com/unmanned/2019/08/12/what-might-a-military-want-with-a-romanian-flying-saucer/

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  December 26, 2024 | International, Land

  Norway-bound K9 155mm artillery begins delivery journey - Army Technology

  The K9 155mm artillery platform is produced by South Korea's Hanwha Aersopace and has achieved significant success in European sales.