US has accepted 36 upgraded F-35s since lifting delivery pause

On the same subject

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  July 3, 2024 | International, Land

  German budget committee clears over 6 bln euros of defence purchases, say sources

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  September 4, 2020 | International, C4ISR

  Harnessing Quantum Technologies at Room Temperature

  Quantum research in both information science and sensing shows great promise for enabling a host of new defense applications. A major hindrance to transitioning breakthroughs from the laboratory to practical use, however, is the extensive equipment needed to cool and trap atoms to exploit their quantum features. To address this challenge, DARPA has announced its Science of Atomic Vapors for New Technologies (SAVaNT) program. SAVaNT seeks to advance the performance of room-temperature atomic vapors to enable future opportunities for unprecedented combinations of low size, weight, and power (SWaP) with performance across multiple Department of Defense domains. “The SAVaNT program will explore a new suite of technologies based on room-temperature atomic vapors to address important gaps for military-relevant applications,” said Tatjana Curcic, program manager in DARPA's Defense Sciences Office. “We're interested in innovative research proposals that significantly advance the performance of atomic vapors for electric field sensing and imaging, magnetic field sensing, and quantum information science.” The program is focused on warm atomic vapors as opposed to cold-atom technology, which requires cooling atoms to very low temperatures with lasers to reduce thermal noise. This process has enabled the world's most accurate atomic clocks with unprecedented levels of timing precision. But the apparatuses needed to cool the atoms can fill up a laboratory, making laboratory atomic clocks impractical for field use. The warm atomic vapors approach, on the other hand, doesn't require complex laser-cooling and allows for a larger number of atoms, boosting the signal. The challenge, however, is that thermal environment effects – even at room temperature – significantly mitigate how long the quantum effects, or coherence, can last. SaVaNT researchers will demonstrate novel methods in three technical areas to overcome limitations due to thermal effects: Technical Area 1 seeks to develop a Rydberg sensor – which uses atoms to sense electric fields – that would provide ultra-narrow bandwidth, high-sensitivity electric field detection for millimeter waves. Technical Area 2 focuses on Vector Magnetometry to enable low-SWaP, room-temperature, quasi-DC magnetic field sensors. The third technical area will address vapor quantum electrodynamics to enable critical components for quantum networks at room temperature. Current methods require either cryogenics or laser cooling and trapping. A Proposers Day for interested proposers will be held virtually via webinar on Sept. 3. The Broad Agency Announcement (BAA) solicitation with full details is available here: https://go.usa.gov/xGr4C https://www.darpa.mil/news-events/2020-09-01a

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  August 30, 2018 | International, Land

  Army National Guard soldiers anxious over new PT test, gear shortfalls

  By: Kyle Rempfer NEW ORLEANS — Equipment requirements, logistics and training are on the minds of Army National Guard soldiers this year, as the Army prepares to roll out a new gender- and age-neutral fitness test. But while soldiers voice trepidation, the larger Army says it's not going to be an issue. “I think the test is going to be good, [but] my concern in the National Guard is the equipment requirement,” a battalion commander from the Louisiana National Guard said during a discussion with Army Chief of Staff Gen. Mark Milley at the National Guard Association of the United States conference in New Orleans this past weekend. “There's a tremendous amount of equipment that's going to be needed at every company, every armory, every detachment in order to administer the test and to train our troops. Have we addressed a plan to do that prior to the roll-out?” the soldier asked. Milley said the equipment concerns were not just an issue for the Guard, but one across the force. However, the new Army Combat Fitness Test correlates much better to actual combat requirements, and “we'd all be negligent if we didn't train to this [new] test," he said. “In order to do it right there's going to have to be a lot of training the trainers, it has be phased in, we have to make sure the scoring standards are correct, and, as you pointed out, it does require a little bit of equipment," Milley said. The ACFT field tests will begin in October and last one year. It will include 60 different types of battalions from all three components of the total force — active Army, Army Guard and Army Reserve. Additionally, Milley said, Training and Doctrine Command is currently conducting an analysis of all the equipment required throughout the force, how much it will cost and how to distribute the gear to the entire Army. There will be some challenges, Milley acknowledged. “For example, embassies," he said. “We have soldiers at embassies around the world, not in big units but small ones. ... But the equipment is an issue. The Guard will get the same equipment the rest of the Army gets. In the meantime — which means the next year — you can train for it. This isn't rocket science." For instance, grab “a 10-pound medicine ball, throw it over your head. Every gym in America has a 10-pound medicine ball,” he added. Full article: https://www.armytimes.com/news/your-military/2018/08/29/army-national-guard-soldiers-anxious-over-new-pt-test-gear-shortfalls