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  May 26, 2024 | International, Security

  Update Chrome Browser Now: 4th Zero-Day Exploit Discovered in May 2024

  Attention Chrome users! Google has released fixes for a high-severity security flaw (CVE-2024-5274) that has been actively exploited in the wild.

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  October 25, 2018 | International, Naval

  Lockheed planning big shift away from LCS propulsion system for its future frigate offering

  By: David B. Larter PARIS – Lockheed Martin is planning to shift from its littoral combat ship's water-jet propulsion to a propulsion system that the U.S. Navy is more familiar with for its future frigate offering, Lockheed's vice president for small combatants and ship systems told reporters at the 2018 Euronaval show. As it works through the Navy's requirements for its FFG(X) program, Lockheed is hoping that a more traditional twin-screw design with independent drive trains will entice the service towards its offering. One of the major hang-ups with the design requirements for all the competitors has been requirement that the engineering spaces be separated by a certain number of meters so that if the ship takes damage in one area, the other space should be online to drive the ship. If the design can't meet the spacing requirement, an alternative propulsion unit has to be installed. For Lockheed, the decision was to try and meet the spacing requirement, which is making its FFG(X) offering a bigger ship than the Freedom-variant littoral combat ship. “We felt the more traditional approach to the suite, going with more of the ... port and starboard side, redundant type of propulsion trains, that familiarity would be well received by the Navy. Going to more of a common system sized for the FFG(X),” said Joe DePietro. “It does require the ship to be longer, given those separation requirements and how you plan to stagger your port and starboard configuration of the combining gear/reduction gear, running into a single shaft into a screw on either side. You have to have a certain amount of separation and they have to be fully independent.” As for the system itself, Lockheed is keeping its options open, but is looking hard and combined diesel and gas systems, or even combined diesel and diesel, give the speed requirements for FFG(X), which are well reduced from what they were for the speedy LCS. The fleet has been receptive but mixed on the idea of a straight diesel propulsion system. But the trade-off for gas turbines is less fuel efficiency, which impacts range, DePietro said. In February, the Navy announced that it had awarded design contracts to asked to Huntington Ingalls, Lockheed Martin, Austal USA, General Dynamics Bath Iron Works, and Italian shipbuilder Fincantieri have all been asked to submit mature designs. Lockheed is playing a strong hand going into selection, however, because of its partnership with Fincantieri on the Freedom-variant LCS, which is built at Fincantieri's Marinette Marine shipyard in Wisconsin. Lockheed will either win the award for its modified LCS or it will be a systems integrator for Fincantieri's FREMM, which is another leading competitor for the program. https://www.defensenews.com/digital-show-dailies/euronaval/2018/10/23/lockheed-planning-big-shift-away-from-lcs-propulsion-system-for-its-future-frigate-offering

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  September 23, 2020 | International, Naval, C4ISR

  Northrop Grumman Reveals Low-Band Jammer Candidate

  Steve Trimble Northrop Grumman has revealed the first photograph of a pod for the Next Generation Jammer-Low Band (NGJ-LB) system possibly weeks ahead of a competitive contract award. The U.S. Navy image released by Northrop shows the full-scale candidate for the NGJ-LB contract during testing inside the Air Combat Environment Test and Evaluation Facility's anechoic chamber. The image reveals a pod with a dimpled outer mold line similar to the ALQ-99 low-band pods, which the winning NGJ-LB design is expected to augment and then replace. Northrop and rival L3Harris recently completed anechoic chamber testing of both competing NGJ-LB pods while wrapping up the 20-month Demonstration of Existing Technologies phase, which precedes a contract award for the engineering and manufacturing development phase scheduled in November. Naval Air Systems Command (NAVAIR) has budgeted $3 billion to develop and build the NGJ-LB pods over the life of the program. Each pod will be integrated on the Boeing EA-18G aircraft. The low-band pods will complement the Raytheon NGJ-Mid-band pods now in early production. NAVAIR also has expressed long-term interest in a new high-band pod. https://aviationweek.com/defense-space/sensors-electronic-warfare/northrop-grumman-reveals-low-band-jammer-candidate