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14 août 2019 | International, Aérospatial

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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    30 avril 2018 | International, C4ISR

    DARPA wants to arm ethical hackers with AI

    By: Brandon Knapp The Defense Advanced Research Projects Agency (DARPA) wants to leverage human-artificial intelligence teaming to accelerate the military's cyber vulnerability detection, according to agency documents. The task of securing the Pentagon's diverse networks, which support nearly every function of the military's operations, presents a nightmare for defense officials. The current time-intensive and costly process involves extensively trained hackers using specialized software suites to scour the networks in search of vulnerabilities that could potentially be exploited, but the scarcity of expert hackers makes detecting cyberthreats a challenge for the Defense Department. DARPA's Computers and Humans Exploring Software Security (CHESS) program seeks to bolster existing cyber defenders with a new tool that would render much of the current toolkit ancient history: artificial intelligence. The program aims to incorporate automation into the software analysis and vulnerability discovery process by enabling humans and computers to reason collaboratively. If successful, the program could enhance existing hacking techniques and greatly expand the number of personnel capable of ethically hacking DoD systems. To achieve its goal, DARPA will solicit proposals from industry across five technical areas, including developing tools that mimic the processes used by expert hackers and ultimately transitioning a final solution to the government. “Through CHESS, we're looking to gather, understand and convert the expertise of human hackers into automated analysis techniques that are more accessible to a broader range of technologists,” the DARPA program description reads. “By allowing more individuals to contribute to the process, we're creating a way to scale vulnerability detection well beyond its current limits.” While DARPA sees artificial intelligence as an important tool for enhancing cybersecurity efforts, officials emphasize the essential role humans play in the collaborative process. “Humans have world knowledge, as well as semantic and contextual understanding that is beyond the reach of automated program analysis alone,” said Dustin Fraze, the I2O program manager leading CHESS. “These information gaps inhibit machine understanding for many classes of software vulnerabilities. Properly communicated human insights can fill these information gaps and enable expert hacker-level vulnerability analysis at machine speeds.” The CHESS program will span three phases lasting a total of 42 months. Each phase will focus on increasing the complexity of an application the CHESS system is able to analyze effectively. https://www.c4isrnet.com/it-networks/2018/04/27/darpa-wants-to-arm-ethical-hackers-with-ai/

  • US Air Force Could Struggle to Grow Its Fleet

    18 février 2019 | International, Aérospatial

    US Air Force Could Struggle to Grow Its Fleet

    By Jon Harper The Air Force hopes to ramp up to 386 squadrons by 2030, but it could face challenges just to maintain its current size. The Congressional Budget Office estimates that the service would need significantly more funding annually than it has received in recent decades simply to replace aging airframes. The Air Force has about 5,600 aircraft, many of which are nearing the end of their service life, the nonpartisan research group noted in a recent report, “The Cost of Replacing Today's Air Force Fleet.” CBO estimates that replacing the planes in the current fleet one-for-one would cost an average of $15 billion a year (in fiscal year 2018 dollars) in the 2020s. That figure would rise to $23 billion in the 2030s and then drop back down to $15 billion in the 2040s. In comparison, appropriations for procuring new aircraft averaged about $12 billion per year between 1980 and 2017, and just $9 billion between 2010 and 2017, the report noted. “In CBO's projection, the procurement costs of new aircraft ... would rise to and remain at levels considerably above historical averages,” it said. Fred Bartels, a defense budget analyst at the Heritage Foundation's Davis Institute for National Security and Foreign Policy, said the Air Force is at risk of shrinking due to fiscal constraints, especially as other services such as the Navy seek to beef up their own force structures in the coming years. Even if the Air Force doesn't decline in size, modernization and force level increases could be delayed, he noted. “I can see the growth being slowed down a little bit here and there.” To maintain force structure, the Air Force might have to resort to life-extension efforts, he said. But that creates its own set of problems. “Your aircraft cost even more to operate because you're ... [holding] together a 50-year-old airplane,” Bartels said. “You're just creating different challenges all the time and you're increasing your [operation and maintenance] costs, which in turn decreases the availability of resources that you have to procure a new platform. So you end up in that vicious cycle.” Delaying modernization also puts the U.S. military at risk of falling behind the technological curve as it faces advanced adversaries. “You can't expect the same aircraft to still represent air superiority 30 years from when it's first released,” he said. The Air Force has been conducting an assessment to determine its force structure and modernization needs for the 2020s. Officials have concluded that the service would need 386 squadrons by 2030 to fulfill the requirements of the latest national defense strategy, which was released last year. It currently has 312 squadrons. The final results of the study are expected to be delivered to Congress in March. Air Force Vice Chief of Staff Gen. Stephen “Seve” Wilson said the service will present a strategy-driven assessment, not a “budget-driven strategy.” “The force that we think we need for the war fight that we think we need to be prepared for, is that 386 [squadrons],” he said during an interview with National Defense at the Reagan National Defense Forum in December. “We're going to continue to ... have that dialogue with both the House and the Senate.” http://www.nationaldefensemagazine.org/articles/2019/2/14/air-force-could-struggle-to-grow-its-fleet

  • Defense Innovation Unit publishes ethical AI guidelines

    3 décembre 2021 | International, C4ISR, Sécurité

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    The Defense Innovation Unit now has its own guidelines for implementing the Pentagon's principles of ethical artificial intelligence use.

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