Budget office says amphibious ship could cost triple Navy’s estimate

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  7 décembre 2018 | International, Aérospatial

  Airbus pulls out of Polish helo tender due to offset requirements

  By: Jarosław Adamowski WARSAW, Poland — Airbus Helicopters has decided to pull out of the Polish Defence Ministry's tender to acquire new copters for the country's Navy. The "offset requirements defined by the Polish MoD made it impossible for Airbus Helicopters to submit a competitive offer," the company said in a statement sent to the state-owned news agency PAP. “Airbus Helicopters continues to be interested in supporting the process of the modernization of the Polish Armed Forces in the field of helicopter fleet replacement,” the vendor said with respect to Poland's other helo procurement plans. Earlier this year, Airbus Helicopters and Leonardo placed their offers in the ministry's tender to purchase four helicopters. Leonardo, which is now the only active participant of the tender, owns Polish aircraft plant PZL Swidnik which makes the AW101 copter, among others. The new helos, enabled with anti-submarine warfare (ASW) and search-and-rescue (SAR) capabilities, are designed to replace the Polish Navy's Kaman SH-2G Super Seasprite copters, according to First Deputy Defence Minister Wojciech Skurkiewicz. Local observers have also said the new helos could replace the Navy's Soviet-designed Mil Mi-14 copters. https://www.defensenews.com/global/europe/2018/12/04/airbus-pulls-out-of-polish-helo-tender-due-to-offset-requirements

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  4 septembre 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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  9 mars 2023 | International, Naval

  Commandant pushes amphibious warship funding as next budget emerges

  Berger the Pentagon isn’t giving the Navy and Marine Corps a sufficient budget to fund amphibious warships.