28 juillet 2024 | International, Terrestre

Rheinmetall delivers first Lynx IFV to Hungary, and soon, Ukraine - Army Technology

Hungary has received its first indigenously produced KF41 Lynx infantry fighting vehicle from Rheinmetall, and Ukraine will soon follow.

https://www.army-technology.com/news/rheinmetall-delivers-first-lynx-ifv-to-hungary-and-soon-ukraine/

Sur le même sujet

  • Augmented reality: Seeing the benefits is believing

    20 juillet 2020 | International, C4ISR

    Augmented reality: Seeing the benefits is believing

    Lt. Col. Brett Lindberg and Jan Kallberg There is always something taken away when there are added functionalities. Does the concept of wearing augmented reality that digitally provides situational awareness create an upside that outweighs what it takes away for rifleman skills? The supercharged hearing, six senses for those equipped, broader view of sight, picking up smells, changes in lights and shadows, slightest change in the near environment: With all these close-action skills, will augmented reality create more distraction than enhancement? Is it too early to push digital situational awareness all the way down to the soldier in maneuver units? Is the upside present? Naturally, all new defense technology takes time to find its place in the fight. The helicopter was invented in the 1930s, and it found a limited military role in the Korean War, not meeting the military expectation of higher impact. But 15 years later, it played a pivotal role in the war in Vietnam. New technology is not only technology — the human component to properly implement it is likely slower than the technological advancements. It is always easier to question than explain, and we understand that many thoughts and thousands of work hours have gone into designing the early augmented reality systems. However, still we find our questions worth discussing because once fielded, utilized and put into action in a conflict, it is too late to raise any concerns. This is the time to discuss. How reliable are the sensors? Can the sensors be easily spoofed? Is it too early to push it all the way down to the individual soldier? A technologically advanced adversary will likely devote research already in peacetime to develop one-time use, tossable, simple, low-cost devices that can — in close combat — create spurious sensor data and derail augmented reality. If the integrity of the sensor data is in question, it will likely force commanders to refrain from using augmented reality. A similar, relevant issue is the extent of the augmented reality technology's electromagnetic signature. Will the interconnectivity of the squad's augmented reality compromise the unit and deliver information to the enemy? What we do not want to face is a situation where adversaries can pinpoint the location or proximity to U.S. forces by simple detection measures. So, worst-case scenario, inexpensive devices can nullify a significant U.S. investment in technology, training and tactics. Added to the loss of usable augmented reality equipment, the soldiers could be “HUD-crippled.” Navy aviators use the term “HUD-cripple” to visualize a complete dependency of heads-up displays in the cockpit. The “HUD-cripple” is the loss of traditional Navy aviator skills such as landing on an aircraft carrier without the heads-up display. Will soldiers have retained the skills to fight effectively without augmented reality if it goes down? Technical advancements bring us new options and abilities, and they increase mission success. But as with all uncharted territory, they also bring surprises and unanticipated outfalls. During the war in Vietnam in the 1960s and 1970s, military aviation instruments took a significant leap forward, going from World War II-styled gauges in fixed-winged Douglas A-1 Skyraider planes to an earlier version of today's instrumentation in McDonnell Douglas F-15 Eagle fighter jets rolled out as the war in Vietnam came to an end. Parallel with the military advancements, these avionic upgrades were transposed into civilian cockpits with increased complexity and variations, as jetliners are multi-engine airframes, where the number of information points and alarms became numerous in the jetliner cockpit. In the late 1970s and early 1980s, civilian aviation faced several accidents that were hard to explain with standard aviation physics and crash evidence. Instead, the conversations recorded in the black boxes revealed these fatal air crashes. Several of the deadly crashes could have had another outcome if the pilots had not become overwhelmed by all the blinking lights, alarms, buzzers and avionics grabbing their attention, so the pilots lost situational awareness and focus. The warnings, avionics and buzzers had the correct information, but the presentation was a tsunami of red blinkers and alarming sounds, lacking any hints on how to prioritize what needs to be done to recover from a dangerous in-flight emergency. In our view, the key to effective augmented reality is to structure and segment what matters and when. Units — and it varies from soldier to soldier — have different experience levels, so information has a variation in value down to the soldier level. In research design, you seek to explain as much as you can with as little as you can without losing rigor. The same challenge goes for augmented reality, where rigor could be said to be the integrity of the information. Transferred to the ground-fighting world, are we, as an engineering-driven nation, so technology-happy that instead of creating tools for increased survivability and mission success, we initially increase the risks for the war fighter and only correct these after we suffered a surprise in combat? We understand that implementing augmented reality is a long process that is just now at the stage of proving the concept; with setbacks and successes, where are we on the learning curve? In our view, synthetic learning environments have already matured and provide an ample opportunity to use the augmented reality technology with a high return on investment. The opportunities reside in knowledge transfer, sharing experiences, preparing for an ever-changing operational environment, and by doing so, increasing soldiers' survivability and ensuring mission success. The question is: Are we ready to rely on augmented reality in combat? Lt. Col. Brett Lindberg is a research scientist at the Army Cyber Institute at West Point and a simulation operations officer. Jan Kallberg is a research scientist at the Army Cyber Institute at West Point, and an assistant professor at the U.S. Military Academy. The views expressed are those of the author and do not reflect the official policy or position of the Army Cyber Institute at West Point, the U.S. Military Academy or the U.S. Defense Department. https://www.c4isrnet.com/opinion/2020/07/17/augmented-reality-seeing-the-benefits-is-believing/

  • Here are the three companies selected to design hypersonic missile interceptors for MDA

    22 novembre 2021 | International, Aérospatial

    Here are the three companies selected to design hypersonic missile interceptors for MDA

    The Missile Defense Agency has chosen three teams to design a Glide Phase Interceptor to defend against hypersonic threats.

  • New Spy Drone Flies Non-Stop for a Month

    14 août 2018 | International, Aérospatial

    New Spy Drone Flies Non-Stop for a Month

    Airbus's Zephyr solar-powered drone flew for 25 days straight during a test-flight over Yuma, Arizona beginning on July 11, 2018. The flight represented a record for aircraft endurance, breaking the previous 14-day record also set by a Zephyr back in 2015. The long flight has big implications for military surveillance. Drones like Zephyr could loiter over a low-intensity battlefield far longer than current drones can do. The latest high-endurance Reaper drone maxes out at 40 hours in the air. The propeller-driven Zephyr belongs to a class of aircraft known as “high-altitude pseudo-satellites,” or HAPs. Flying as high as 70,000 feet for weeks or even months at a time, HAPs perform many of the same missions that low-orbiting satellites do. “The main HAP applications are in telecommunications and remote sensing, both civilian and military,” Flavio Araripe d'Oliveira, Francisco Cristovão Lourenço de Melo and Tessaleno Campos Devezas wrote in a 2016 paper. Compared to comms satellites, HAPs have the advantages of lower latency and the ability to land for maintenance or reconfiguration, d'Oliveira, de Melo and Devezas explained. For surveillance missions, HAPs unlike satellites can linger over a particular area and could produce images with better resolution, since they fly lower than satellites do. HAPs could be more vulnerable to enemy defenses, however. Where satellites orbit many hundreds of miles over Earth, beyond the reach of most conventional weaponry, Zephyr — so far the only HAP undergoing realistic testing — attained a maximum altitude of 70,000 feet, well under the ceiling for modern air-defense missile systems such as the Russian S-300. Also, the drone is slow, with a cruising speed of just 20 miles per hour. Zephyr and similar pseudo-satellite drones could be best-suited for operations over lightly-defended territory. In 2016, the U.K. ministry of defense bought three Zephyrs for around $6 million apiece in order to evaluate them for potential use by the military and other government agencies. “Zephyr is a cutting edge, record-breaking piece of kit that will be capable of gathering constant, reliable information over vast geographical areas at a much greater level of detail than ever before,” then-defense secretary Michael Fallon said in a statement. Airbus is still refining Zephyr, in particular its power-consumption. During daytime, the lightly-built solar-powered drone — which features an 82-foot wingspan and yet weighs just 165 pounds — can fly as high as 70,000 feet while also charging its batteries. After the sun goes down, Zephyr runs on batteries ... and slowly loses altitude. During the record-setting Yuma flight, the drone dipped as low as 50,000 feet at night. The challenge for Airbus is to balance weight and power-consumption to produce the optimal flight profile for a particular task. “You have to find the right equation between flying altitude plus battery life, maintaining this or that power,” said Alain Dupiech, an Airbus spokesperson. It's unclear just how long Zephyr could stay aloft under the right conditions. The drone's lithium-ion battery eventually dies, forcing it to land for maintenance. But battery technology is advancing rapidly, driven in part by consumer demand for electric cars, d'Oliveira, de Melo and Devezas wrote. In the short term, a maximum endurance of several months is not inconceivable. But longer flights might not be particularly useful for surveillance and comms missions, Dupiech said. “At this stage, most of those missions are not calling for a year and half up there.” Airbus has scheduled Zephyr's next test flight for October in western Australia. http://warisboring.com/new-spy-drone-flies-non-stop-for-a-month/

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