Use existing and planned craft for unmanned logistical resupply

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  22 juillet 2020 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

  How new prototyping dollars will help Army network modernization

  Andrew Eversden ABERDEEN PROVING GROUND, Md. — The U.S. Army is moving forward on a number of projects to bolster its tactical network, thanks to a new pool of money dedicated to prototyping and maturing emerging technology. Additions to the Army's tactical network will come every two years as part of modernization efforts called capability sets. Previously, prototypes of emerging technology would fall into the “valley of death,” where technology projects that didn't have enough funding to transition into programs of record would die, said Maj. Gen. Peter Gallagher, director of the Army's Network Cross-Functional Team. The CFT received nearly $30 million to support prototyping efforts for science and technology efforts as well as industry work in fiscal 2020, according to Justine Ruggio, communications director for the CFT. According to a May news release from Army Program Executive Office Command, Control, Communications-Tactical, the Army network modernization team has identified eight “promising,” Army-led science and technology efforts as well as six industry-led prototyping projects. The Army is particularly interested in low-Earth orbit satellite constellations to improve bandwidth and reduce latency for Capability Set '23 and Capability Set '25, said Michael Breckenridge, acting associate director for the Office of Science and Technology. His office falls under the purview of the Army's Combat Capabilities Development Command C5ISR (Command, Control, Communication, Computers, Cyber, Surveillance, and Reconnaissance) Center. The S&T team is researching how the service can move and secure traffic through these constellations. “While those are very much in their infancy as far as the commercial LEO constellations coming together, we're already working with those vendors to try and get satellite time to be able to do experimentation to understand the capability and how do we shape, then, future investments in that space,” Breckenridge said. The Network CFT is also excited about the survivability and mobility of the Army's command posts, said Donald Coulter, senior S&T adviser for the CFT. It's also focused on spectrum obfuscation capabilities as well as an identity management project that explores new ways of verifying users' identities (for example, through wearables) to ensure the security of Army systems if equipment falls into enemy hands, he added. The S&T community and the CFT are also working on a secure communications link between manned and unmanned fighting vehicles, something that may be used for other parts of the network, Breckenridge said. For example, the C5ISR Center is also experimenting with that link for distributed command post nodes and between command post links, he noted. Previously, a lack of funds made it difficult to create an “entire road map to field” prototypes, he added, and teamwork between the network team and S&T community suffered. But with the newly allocated funds, the S&T community and the Network CFT are able to work more closely. The dollars have been “the key to have the groups from across all those different communities come together focusing on what specifically we need to take viable concepts and promising concepts from idea to demonstration to real ... tangible and robust thing[s] that we can acquire and field,” said Coulter. With the prototyping dollars now in place, the CFT is expected to have an easier time developing technologies for the service's network modernization plan, driven by capability sets. Capability Set '21, which completed critical design review in April, is focused on addressing immediate gaps in the Army's network with currently available technologies. The Army has begun buying those new network tools, which focus on smaller, lighter, faster communication systems for soldiers, and will begin fielding the technology in fiscal 2021. Meanwhile, Capability Set '23, which has preliminary design review scheduled for April next year, is focused on high-capacity, low-latency communications that aren't mature enough today, Gallagher said at the C4ISRNET Conference in May. Future capability sets will include emerging technologies that improve network resiliency. For example, after Capability Set '23, soldiers will have more bandwidth at the tactical edge, allowing for the increased adoption of machine learning and other emerging technologies. The Army is also in the planning stages of Capability Set '25. Even as the Army identifies key technologies for future capability sets, it must work within the constraints of budgets, meaning that the Network CFT and the C5ISR Center have to work together to identify S&T priorities. Coulter said the “key thing” that the CFT does is prioritize its portfolio and provide guidance on critical capability gaps. Breckenridge said the S&T community brings an understanding of adversarial threats to the network and what investments can be made to mitigate those threats to inform the CFT's prioritization. “One of the key things that S&T community does is ... identify those opportunities,” Coulter said. “So we're threat-informed and -aware, but we also are looking from a technology perspective of where can we get the leap-ahead opportunities that can impose challenges to our adversaries and take our network to the next level. So we have to rely on them heavily, not only for some threat information, but also ... those unique potential opportunities from a technology perspective as well.” https://www.c4isrnet.com/battlefield-tech/it-networks/2020/07/20/how-new-prototyping-dollars-will-help-army-network-modernization/

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  29 avril 2020 | International, Aérospatial

  The Flying Car Of the Future Looks to Flying Cars of the Past

  The Air Force is close to testing an experimental vertical takeoff prototype under its new program. The first contract in the U.S. Air Force's bid to acquire flying cars has gone to a company whose design harks back to a pioneer in the field. California-based Sabrewing Aircraft Company received a $3.25 million Phase II Small Business Innovative Research earlier this month to test its Rhaegal-B, a four-rotor craft that the company says can carry up to 5,400 pounds up to 200 knots some 1,000 nautical miles. With its four electric rotors, two on either side of the aircraft, the 60-foot Rhaegal-B somewhat resembles the M400X Skycar from Paul Moller. Moller is, in many ways, the Nikola Tesla of the flying car field. In the early 2000s, the Moller International Skycar became the first non-helicopter vertical takeoff and landing aircraft to actually get off the ground. The four motors would lift the car up and then swivel to propel it forward, like a V-22 Osprey. Even though the design worked, it never made it into showrooms. “For the engine, the most critical element is power,” Moller told The Futurist magazine in 2008. “Once you reduce the diameter of the propulsion system [making the propellor smaller] you go from a helicopter to a fan system. So you're moving less air, and the less air you move, the more power it takes to generate a certain kind of thrust. If I took a helicopter and made it one-half the diameter, I would have to immediately add 60% more power. I halve the diameter again, I have to add 60% more power, again. The M400 Skycar has over 1,000 horsepower.” Given the high cost to power it, the M400 Skycar was impractical for most locations outside of the Middle East, where oil sheiks would use them to traverse wide distances, Moller said at the time. Sabrewing CEO Ed De Reyes, who once worked for Moller, said his former boss was restricted by the engines of his time. The best-suited for the purpose were Wankel rotor engines, and internal combustion engines, which offered high speeds but limited torque. The electric motors that have arrived in recent years are far more promising: smaller, lighter, yet capable of producing more torque than an internal combustion engine. The Rhaegal-B design is highly but not fully autonomous, De Reyes said. A controller will command it from a ground station, but with the sort of low-effort, push-button interface you would encounter on a Northrop Grumman Global Hawk, rather than the more hands-on piloting needed for General Atomics MQ-9 Reapers. Something else that's come a long way since the early 2000s is the ability to detect and avoid objects in mid-air. Ssense-and-avoidance systems are a major stepping stone to more widespread use of drones in U.S. civilian airspace. A lot of drone manufacturers are hoping for the FAA's blessing for their versions. The Rhaegal-B combines radar and nine other sensors to give the aircraft a picture of the environment around it. It can take evasive action without any human control. (In fact, humans can't override it to accidentally steer the vehicle into something else.) If communication is cut off, it can continue to its destination with no additional imput from the ground operator. The appeal for the Air Force has to do with versatility and even detectability. During a webcast on Monday, Air Force Col. Pete White, with Air Force Warfighting Integrating Capability, said that traditional helicopters are noisy compared new vertical-lift aircraft. Thanks, in part, to the new electric motors. “Within feet of an enemy, they can't hear you,” He said that new, nimble electric air vehicles that could take off and land without a runway could help the military “maneuver around the battlefield at a pace that would be impossible today” The Air Force says it wants flying cars to evacuate wounded soldiers from the battlefield, among other missions. That means that they could be operating under fire. De Reyes says the military version of the aircraft has a Kevlar coating to protect it from small ballistics and can operate even when one of the motors is damaged. Air Force officials have also said that they are looking to fund and support U.S. flying-car companies, lest they migrate to China or accept lots of foreign investment. De Reyes says he's often approached by Chinese investors looking to gain a foothold in his company and other entrepreneurs in this space are as well. Sabrewing will test the Rhaegal-B at the Air Force's Edwards Air Force Base, hoping to meet safety requirements that will clear it for more military work and perhaps even commercial use. A June flight demonstration with its prototype has been postponed due to travel restrictions https://www.defenseone.com/technology/2020/04/flying-car-future-looks-flying-cars-past/164995

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  12 mai 2021 | International, Terrestre

  BMC in talks to sell Turkish shares to local steelmaker

  BMC, a joint Turkish-Qatari venture that manufactures armored vehicles and tanks, is in the late stage of negotiations to sell a majority stake of Turkish shares to a Turkish steel producer, sources told Defense News.