South Korea’s HHI inks deal to build four ships for Peru’s Navy

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  1 août 2019 | International, Naval

  NRL Pigment Package for Ships Slows Discoloration, Lowers Solar Temperature Load

  By Sara Francis, U.S. Naval Research Laboratory Public Affairs WASHINGTON (NNS) -- A pigment package designed by the U.S. Naval Research Laboratory (NRL) to slow discoloration of the exterior coating on surface ships has started to make its way into the fleet and is producing early, positive results. NRL researchers created the pigment combination to satisfy the fleet requirement for the Navy standard "haze gray" paint that will remain color stable for longer than current coatings. While many paint manufacturers had produced new coating technologies that solved a variety of other problems, such as corrosion and delamination, some ships still showed discoloration in as little as 18 months. Additionally, different coatings from different manufacturer's fade to different hues, resulting in an inconsistent appearance between the original coatings and any in-service touch-ups or repairs. “We had a good idea on how to solve the issue, and we leveled the playing field by providing the pigment combination to all companies at the same time,” said Dr. Erick Iezzi, senior research chemist in the Center for Corrosion Science and Engineering at NRL. NRL is currently working with Naval Sea Systems Command, Naval Systems Engineering Directorate, Ship Integrity & Performance Engineering (SEA 05P) to transition the new pigment combination into a military specification, which will become the standard for haze gray paint applied to surface ships. The first vessel to receive a coating with the pigment combination was USS Essex (LHD 2) in 2017. The most recent to vessel to receive it was USS George Washington (CVN 73). While all paint manufacturers have access to the pigment technology, three companies have already started mass-producing the paint, generating an estimated tens of thousands of gallons thus far. Recently, Sherwin-Williams won the Society for Protective Coatings Military Coatings Project Award of Excellence for its new topcoat paint that incorporates the new pigment after it was used to overhaul USS George Washington. “It was motivating to know that several companies were willing to lean on our expertise to provide a new technology that would produce the best product for the Navy,” Iezzi said. From 2012 to 2013, Iezzi worked with corrosion science researchers Jimmy Tagert and Candice Langaster to design five new pigment combinations and test them for color stability, solar reflectance and other coating properties. After testing all combinations, they provided the best performer to paint and coating manufacturers to begin integration in 2015. The pigment combinations underwent testing at NRL's Key West facility for atmospheric exposure performance and accelerated weathering. Coatings that contained the new pigments proved to have excellent color stability, were five times harder than silicone alkyd, had improved gloss retention and chemical resistance, and provided greater barrier properties. “It was great working with the manufacturers and demonstrating our ability to provide a product needed for the fleet,” Tagert said. For more information, visit http://www.navy.mil, http://www.facebook.com/usnavy, or http://www.twitter.com/usnavy. https://www.navy.mil/submit/display.asp?story_id=110401

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  9 octobre 2019 | International, Terrestre

  U.S. Army extends contract for Bradley Fighting Vehicle upgrades

  October 8, 2019 - The U.S. Army has awarded BAE Systems a contract modification worth up to $269 million for continued production of the Bradley Fighting Vehicle (BFV). The award for an additional 168 upgraded Bradley A4 Infantry Fighting Vehicles is part of the Army's combat vehicle modernization strategy and helps ensure force readiness of the Armored Brigade Combat Teams (ABCT). The Bradley A4 is equipped with an enhanced powertrain that maximizes mobility and increases engine horsepower, providing rapid movement in reaction to combat or other adverse situations. Wide angle Driver's Vision Enhancer, improved Force XXI Battle Command Bridge and Below (FBCB2) software integration improves friendly and enemy vehicle identification, enhancing situational awareness. The addition of a High Speed Slip Ring, greater network connectivity and Smart Displays that simultaneously display classified and unclassified information also improve situational awareness. “The Bradley is one of the most critical vehicles in the Army's ABCT today because it allows the Army to transport troops to the fight, and provide covering fire to suppress enemy vehicles and troops,” said Scott Davis, vice president of combat vehicle programs for BAE Systems. “Upgrading to the A4 configuration provides soldiers with more power to increase their speed and ability to integrate enhanced technology to ensure they maintain the advantage on the battlefield.” Previously awarded funding for initial production of 164 Bradley A4 vehicles allowed BAE Systems to begin production. The award of this option brings the total production funding to $578 million. It includes upgrades and associated spares of two Bradley variants: the M2A4 Infantry Fighting Vehicle and the M7A4 Fire Support Team Vehicle. BAE Systems is a premiere supplier of combat vehicles to the U.S. military and international customers. The company has an extensive manufacturing network across the United States and continues to invest in it. Work on the program will take place at Red River Army Depot in Texarkana, Texas, and BAE Systems' facilities in Aiken, South Carolina; Anniston, Alabama; Minneapolis, Minnesota; San Jose, California; Sterling Heights, Michigan; and York, Pennsylvania. View source version on BAE Systems: https://www.baesystems.com/en/article/u-s--army-extends-contract-for-bradley-fighting-vehicle-upgrades

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  13 février 2024 | International, Naval

  Space Force forms Futures Command to validate mission needs

  The command will be organized into centers, including a Concepts and Technology Center, a Wargaming Center and a Space Warfighting Analysis Center.