Estonia eyes mid-range air defense systems to rectify NATO ‘oversight’

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  5 février 2021 | International, Aérospatial, Naval, C4ISR

  New Sonar Sees Underwater From The Air, Promising To Transform Anti-Submarine Warfare

  Researchers at Stanford University have developed a new type of sonar to overcome the previously insurmountable problem of seeing underwater from the air. Sound does not travel easily between air and water: there is a 65-decibel loss, which means roughly a million-fold decrease in intensity, making it makes it virtually impossible to pick up sound reflections from the air. The new technology can map the seabed and potentially detect mines, submarines and other underwater targets from aircraft. Currently, the only ways of using sonar from aircraft are sonar buoys (sonobuoys) dropped into the water, or dipping sonar lowered to the sea surface from a hovering helicopter. The helicopter cannot move while using dipping sonar, so it has to check one spot, raising the sonar, fly somewhere else, lowering the sonar again, and so on. By contrast, the new Photoacoustic Airborne Sonar System or PASS, developed at Stanford with funding from the U.S. Navy, will work from a moving aircraft. “Our vision of the proposed technology is to capture images continuously as the airborne vehicle flies over the water,” Stanford researcher Aidan Fitzpatrick told Forbes. “Similar to how synthetic aperture radar systems or in-water synthetic aperture sonar systems work today.” https://www.forbes.com/sites/davidhambling/2021/02/04/new-sonar-sees-underwater-from-aircraft/

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  14 décembre 2018 | International, Aérospatial

  US Air Force chief of staff: Our military must harness the potential of multidomain operations

  By: Gen. David Goldfein Faced with the seemingly impossible task of solving the puzzle of the German military coding machine commonly known as “Enigma” during World War II, British mathematician Alan Turing and his team used a new kind of technology. They built a computing machine that foreshadowed the age of software and algorithms, breaking a code that the Germans changed every 24 hours. Turing's legacy is profound, in war and peace. Today, anyone who has spent time on the internet or social media can't help but have noticed the speed by which algorithms help companies direct targeted advertisements to us — in seconds and minutes — based on their ability to track online interests and behaviors. It is no overstatement to say that the same kind of intuitive speed in understanding and directing information is what our military needs in order to win future wars. This new kind of warfare will require us to defend against and attack foes on land and sea as well as in the air, space and cyberspace. In military parlance, the term for this is “multidomain operations,” an ungainly phrase that has nonetheless become a major focus for each of the military services, including my own, the U.S. Air Force. The term is in vogue now for good reason: Whoever figures out how to quickly gather information in various “domains” and just as quickly direct military actions will have the decisive advantage in battle. Figuring out how to master multidomain warfare will be difficult, but do it we must. History has many lessons here. One analogy I like dates to the American Revolution. As British military forces were preparing to attack Lexington and Concord, patriots devised a simple system to alert Colonial troops. They hung lanterns in the Old North Church in Boston — one if by land, and two if by sea. But how many lanterns would the patriots have hung if the British decided to conduct multidomain operations and attack from both the land and the sea? This would have created a dilemma because they would have to choose to either divide their force and defend both approaches or choose one to defend. However, the patriots had no need to worry about this because the British did not have the ability to control a split force using both land and sea approaches. Without a suitable command-and-control system, a military force cannot effectively take advantage of multidomain operations. Fast forward to today. Having the ability to credibly attack enemies independently by land, sea, air, space or cyberspace — or all at once — creates untenable dilemmas. I'd like our adversaries to always be in the lantern-buying business. Developing the systems, training and methods by which to practice this new brand of warfare will require extraordinary focus from our military. We will have to master and apply quantum computing, artificial intelligence, hypersonic flight, and new concepts for command-and-control that will need to span the globe. In order to build this capability, we will have to develop a new ethos that allows for experimental failure, just as the private sector has done in order to bring us smartphones, robotics and many other cutting-edge technologies that define the speed and precision of modern life. America's new National Defense Strategy correctly focuses the bulk of our nation's efforts on what is called great power conflict, the potential for war with formidable foes like Russian and China. We have known for some time that both are building militaries that harness AI, quantum computers, hypersonic flight and the ubiquitous threat from cyberattacks. To build a military capable of defending and deterring against such threats, it is imperative that the United States learn to fight and defend from beneath the ocean to the outer reaches of space, and everywhere in between. Last month the Air Force kicked off the inaugural Doolittle Wargame, named for the World War II hero Jimmy Doolittle, who led the daring air raid on Tokyo in 1942 that helped turn the tide of war in the Pacific. That mission personified multidomain warfare in that it was launched from an aircraft carrier hauling heavy bombers, something the Japanese were not expecting and were not prepared for. The Doolittle Wargame is the start of our efforts to learn how to harness the potential for extremely fast, unpredictable warfare from the heights of air and space to the expanses of cyberspace. If we can pull this off, it may redefine conventional deterrence in the 21st century. Gen. David Goldfein is the chief of staff for the U.S. Air Force. https://www.defensenews.com/outlook/2018/12/10/us-air-force-chief-of-staff-our-military-must-harness-the-potential-of-multidomain-operations/

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  13 novembre 2019 | International, Aérospatial

  VSR700 prototype performs first flight

  Marignane – The prototype of Airbus Helicopters' VSR700 unmanned aerial system has performed its first flight at a drone test centre near Aix-en-Provence in the south of France. The VSR700 performed several take-offs and landings on Friday 8th of November with the longest flight lasting around 10 minutes. In accordance with the airworthiness authority that provided the flight clearance, the VSR700 was tethered with 30-metre cables to fully secure the flight test zone. The subsequent phases of the flight test programme will now evolve towards free flight, and then progressively open the flight envelope. “The VSR700 is a fully-fledged unmanned aerial system, capitalising on Airbus Helicopters' extensive experience of advanced autopilot systems and engineering expertise to provide modern militaries with new capabilities”, said Bruno Even, Airbus Helicopters CEO. “This first flight of the VSR700 prototype is a major milestone for the programme as we make progress on the operational demonstrator for the French Navy that will perform trials in 2021 in partnership with Naval Group.” The VSR700, derived from Hélicoptères Guimbal's Cabri G2, is an unmanned aerial system in the 500-1000 kg maximum take-off weight range. It offers the best balance of payload capability, endurance and operational cost. It is capable of carrying multiple full size naval sensors for extended periods and can operate in existing ships, alongside a helicopter, with a low logistical footprint. The VSR700 prototype which has just performed its maiden flight is a step change from the optionally piloted demonstrator that first flew in 2017 and which was based on a modified Cabri G2 equipped for autonomous flight. Compared to the demonstrator, the VSR700 prototype has a specialized set of avionics and an advanced flight control system, a payload bay in place of the pilot station designed to manage mission equipment, as well as a sleeker, more aerodynamic shape to improve flight performance. About Airbus Airbus is a global leader in aeronautics, space and related services. In 2018 it generated revenues of € 64 billion and employed a workforce of around 134,000. Airbus offers the most comprehensive range of passenger airliners. Airbus is also a European leader providing tanker, combat, transport and mission aircraft, as well as one of the world's leading space companies. In helicopters, Airbus provides the most efficient civil and military rotorcraft solutions worldwide. https://www.airbus.com/newsroom/press-releases/en/2019/11/vsr700-prototype-performs-first-flight.html