Soon to come to the Army: A high-power microwave to take out drone swarms

On the same subject

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  September 28, 2018 | International, Aerospace, Naval, Land

  Here’s how the Corps could shave about 6 pounds off your body armor

  By: Shawn Snow The Corps is in the beginning stages of researching a new, lighter alternative ballistic body armorplate for counterinsurgency style conflicts that is nearly six pounds lighter than the legacy plates. And on Thursday, it held an industry day with 16 companies vying to produce the Corps' latest body armor. The goal is to reduce battlefield fatigue and provide commanders with flexibility on the type of armor protection they decide to carry into combat, according to Keith Pierce, the armor team lead for Infantry Combat Equipment at Marine Corps Systems Command. While the current Enhanced Small Arms Protective, or ESAPI, have been highly effective in saving lives on the battlefield, they weigh nearly a combined 15 pounds, the Corps wants to shave that down to roughly 8.6 pounds for a medium-sized Marine, Pierce said. But don't expect the ESAPI to disappear just yet. The new plates are being crafted for low intensity threat environments like the counterinsurgency style wars that have embroiled American forces for nearly 20 years. While the new plates will “defeat a preponderance of threats” in low intensity conflicts, the ESAPIs will still be “critical in some threat environments,” Pierce explained to Marine Corps Times. But the changes to the new plates are still likely to be minimal. The Corps has decided to keep the same basic shape of the ESAPI, and there's unlikely to be any major changes in materials used to construct the armor plates “The materials for plates haven't had a big tech leap,” Pierce said. “A lot of people are trying to find that next leap.” The Army recently fielded a new plate, but its relatively of the same construction as the ESAPI, according to Pierce. “There may be incremental changes ... like the ceramic improving a little bit,” Pierce explained. But Pierce said he didn't expect any major changes over the next five years. “We are looking at some unique things,” he added. A lot of data and analysis is being pored over, to include assessments of the threat environment by the intelligence community for the construction of the new plates. So far, the Corps has tested a prototype of the lighter plates and found Marines had nearly eight percent faster mobility over the heavier ESAPIs. The new plates — when combined with the new Plate Carrier Gen III system — will reduce a Marine's load burden by a total of eight to 10 pounds, according to Pierce. The Corps expects to award a contract sometime in fiscal 2019 for the lightweight plates, and fielding might kick off in 2020, Pierce said. https://www.marinecorpstimes.com/news/your-marine-corps/2018/09/27/heres-how-the-corps-wants-to-shave-about-6-pounds-off-body-armor/

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  April 29, 2020 | International, Aerospace

  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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  November 11, 2022 | International, C4ISR

  Q&A with Mart Noorma, the new director of NATO’s cyber brain trust

  "In cyberspace, especially," Noorma says, "there are all kinds of new, incoming threats, and we have to be prepared."