US prepares to scrap ITAR for AUKUS nations - Army Technology

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  7 novembre 2019 | International, Aérospatial

  Airbus reveals classified LOUT stealth testbed

  Airbus Defence & Space has revealed a more than decade-long research and demonstration effort into very low observable (LO) technologies, conducted as a classified effort for the German defence ministry. Showing its LO UAV testbed – or LOUT – platform at Manching on 4 November, Airbus future combat air system (FCAS) programme manager Mario Hertzog said the company began initial concept work in 2007. This led to a contract award in 2010 to refine configuration and material choices, and the production of a diamond planform demonstrator was completed in 2014. Pointing to the company's long involvement with LO reseach, Hertzog says: “Bringing all our experience into one programme was a logical conclusion.” The chosen configuration used for aerodynamic and anechoic chamber testing since 2014 has a roughly 12m (39.3ft) wingspan and similar length, and is described as a 4t-class vehicle. The subsonic design would use a conventional engine concealed behind a diverterless inlet, and has twin intakes blended into its upper fuselage. A cockpit transparency and sensor apertures also formed part of the testing. The aircraft's exhaust nozzle also is shielded from beneath, with Hertzog noting that such a vehicle would be optimised for use against ground-based air-defence systems. This mission requirement also led the company to hone LO techniques for the vehicle's landing gear doors and centerline internal weapons bay, Hertzog notes. Focus areas have included testing LO materials, including a radar absorbent structure for engine intake ducts, and on assessing radar frequency and infrared signature performance. Modelling work has also been conducted to analyse the likely acoustic characteristics of such a design. Airbus confirms that it has completed contracted work on LOUT, but says additional activities could be conducted. However, Hertzog declines to say whether Berlin could seek a flight-test campaign with such a system. Lessons learned from the LOUT programme will be available for potential adaptation during a long-term evolution activity on the Eurofighter Typhoon, and on a proposed French-German-Spanish FCAS development, Hertzog says. "Stealth is and will remain an enabler for survivability," he notes. https://www.flightglobal.com/news/articles/pictures-airbus-reveals-classified-lout-stealth-tes-462003/

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  22 août 2018 | International, Aérospatial

  NASA begins test flights to study physiological events on military pilots

  BY: GARRETT REIM NASA started a several months-long series of flights on 3 August to identify the physiological impacts of flying in high-performance military aircraft on the human body. The flights are being conducted at NASA's Armstrong Flight Research Center at Edwards Air Force Base in California and will take place over 160 flight hours. The tests are managed by the NASA Engineering and Safety Center at Langley Research Center in Virginia. During the tests researchers will measure the breathing of five NASA pilots flying in F-18A/B and F-15D aircraft, while they use different equipment types and experience different flight conditions. The flight conditions that will be tested include benign environments, typical in instrument proficiency training, to more strenuous environments, such as those found in high altitude, aerobatic manoeuvring and combat manoeuvring, according to NASA. In recent years, the US Navy and Air Force have been perplexed by an increase in the number of pilots experiencing physiological events during flight across a variety of aircraft. Symptoms from physiological events include cognitive impairment, numbness, tingling, lightheadedness, behavioral changes and fatigue. Data collected will just serve as a baseline for comparison because NASA's aircraft still use the legacy technology of a Liquid Oxygen System as opposed to newer military aircraft that utilise an Onboard Oxygen System. https://www.flightglobal.com/news/articles/nasa-begins-test-flights-to-study-physiological-even-451308

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  5 août 2024 | International, Aérospatial

  Watch: AC-130J gunship pummels Navy vessel during Rim of the Pacific

  A decommissioned Navy vessel was pounded by cannon fire from an AC-130J gunship as part of the 2024 RIMPAC exercise.