14 avril 2020 | International, Naval

US Navy commissions its last Block III Virginia submarine

By: David B. Larter

WASHINGTON — The last of the U.S. Navy's eight Block III Virginia-class submarines has joined the fleet, according to a Navy news release.

The attack submarine Delaware didn't have its formal commissioning ceremony because of the ongoing coronavirus outbreak, but it will nonetheless start getting ready to enter the deployment rotation.

The Block III replaced 12 vertical launch tubes for Tomahawk Land Attack Missiles with two larger 87-inch diameter tubes able to fire larger payloads, each housing six TLAMs.

The first Block IV, the attack submarine Vermont, is slated to be commissioned later this month. The Block IV subs primarily add reliability features to the boat that should increase its life span.

The Block V, which was awarded last year, adds acoustics upgrades. Eight of the boats will have the Virginia Payload Module. The VPM is designed to triple the Tomahawk cruise missile capacity of the Virginia-class subs, a move designed to offset the pending retirement of the Ohio-class guided-missile subs, which have a 154-Tomahawk capacity. Each Virginia Payload Module sub will have a 40-Tomahawk loadout.

https://www.defensenews.com/naval/2020/04/09/the-us-navy-commissions-the-last-block-iii-virginia-submarine/

Sur le même sujet

  • Ukrainian President Zelenskyy to visit Canada this week: sources | CBC News

    19 septembre 2023 | International, Terrestre

    Ukrainian President Zelenskyy to visit Canada this week: sources | CBC News

    Ukrainian President Volodymyr Zelenskyy will visit Canada later this week after his visit to the United Nations and the U.S., sources told CBC News.

  • F-35: What The Pilots Say

    26 mars 2019 | International, Aérospatial

    F-35: What The Pilots Say

    by Linda Shiner In my interviews with F-35 pilots, one word repeatedly came up: “survivability.” Surviving the Lockheed Martin F-35's primary mission—to penetrate sophisticated enemy air defenses and find and disable threats—requires what the fifth-generation jet offers: stealth and a stunning array of passive and active sensors bringing information to the pilot. The F-35 can see trouble coming—ahead, behind, or below the aircraft—far enough in advance to avoid a threat or kill it. Faced with multiple threats, the sensor suite recommends the order in which they should be dispatched. U.S. forces first took these capabilities into combat last September, when Marine F-35Bs struck the Taliban in Afghanistan (five months after its combat debut with the Israeli air force). More than 360 of the multi-service aircraft—Air Force F-35As, Marine short-takeoff-and-vertical-landing Bs, and carrier-capable Cs—have been delivered to 16 U.S. airbases and to seven other countries. Reaching these milestones has not been easy. The program's difficulties and its cost—$406 billion for development and acquisition—have been widely reported. But now the F-35 is in the hands of the best judges of its performance, its pilots. I asked eight of them—test pilots who contributed to the jet's development as well as active-duty pilots—about their experiences. Here, in their own words, are their answers. Full article: https://www.airspacemag.com/military-aviation/f-35-faces-most-critical-test-180971734/

  • Pilots try out new helmet in F-16V flight tests

    7 août 2020 | International, Aérospatial

    Pilots try out new helmet in F-16V flight tests

    Seth J. Frantzman JERUSALEM — Recent flight tests of the F-16V fighter jet incorporated a new version of the pilot's helmet that introduces a visor with optical inertial trackers and is designed to provide improved durability, accuracy and comfort for long flights. The Joint Helmet Mounted Cueing System II is manufactured by Collins Elbit Vision Systems, a joint venture between Collins Aerospace and Elbit Systems of America. The flight tests followed a safety qualification test for the helmet last year meant as a step toward making the JHMCS II the baseline helmet for the F-16 Fighting Falcon Viper (V) Block 70/72, made by Lockheed Martin. The safety test was performed on the ground, and the helmet was subjected to wind blasts. Jeff Hoberg, a co-general manager with the joint venture, said the helmet was specifically created for aircraft like the F-16V and builds on the legacy of the earlier JHMCS variants used on F-15, F-16 and F-18 jets. With an optical inertial tracker, the JHMCS II is more accurate than previous models, and its improved center of gravity mitigates pilot fatigue, as the helmet aligns better with the spine, Hoberg said. The optical tracking is made possible by upgrades to algorithms and software, the placement of a tracking part on the front of the helmet above the eyes, and a reference unit on the dashboard console of the aircraft. “Likewise it has a color display, and when you add color to the display, air crew can absorb more information,” he added. The next step for the helmet, Hoberg explained, is to continue flight tests this year and through early next year, with the expectation that the new variant will be certified as the baseline helmet for the F-16V. The JHMCS II is the only helmet-mounted display integrated and tested on the F-16V. “Flight tests is the next milestone as we partner with Collins Elbit Vision Systems on the JHMCS II, and we look forward to continued collaboration,” said Danya Trent, vice president of the F-16 program at Lockheed. The F-16V aircraft, equipped with an active electronically scanned array radar, are part of a new Lockheed production line in Greenville, South Carolina, announced last year. The company said in a 2019 interview that it expected hundreds of aircraft to be upgraded to the Viper model and up to 500 more to be sold in the next decade, with F-16s estimated to be keep flying into the 2040s. The fourth-generation “V” model first flew in 2015 and is going through a flight test phase. F-16V sales and upgrades to the variant are in the works for Taiwan, Bahrain and Bulgaria, among other countries. https://www.c4isrnet.com/battlefield-tech/2020/08/06/pilots-try-out-new-helmet-in-f-16v-flight-tests/

Toutes les nouvelles