15 septembre 2021 | International, Terrestre

UK industry team demos new counter-missile protection for armored vehicles

A Leonardo-led, U.K.-based industry team has demonstrated an active vehicle protection system that includes soft and hard kill options for the British military.

https://www.defensenews.com/digital-show-dailies/dsei/2021/09/15/uk-industry-team-demos-new-counter-missile-protection-for-armored-vehicles/

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  • Here are a few of the experiments hitching a ride on the Air Force’s secret space plane

    11 mai 2020 | International, Aérospatial

    Here are a few of the experiments hitching a ride on the Air Force’s secret space plane

    Nathan Strout When the secretive X-37B space plane returns to orbit on May 16, it will be carrying more experiments than it has on any previous mission, including one that will transmit solar energy from space to the ground via microwave energy. "The X-37B team continues to exemplify the kind of lean, agile and forward-leaning technology development we need as a nation in the space domain," said U.S. Space Force Chief of Space Operations Gen. John "Jay" Raymond. "Each launch represents a significant milestone and advancement in terms of how we build, test, and deploy space capabilities in a rapid and responsive manner." The unmanned X-37B, which returned from its last and longest flight in October, is scheduled to launch May 16 from Cape Canaveral Air Force Station, Florida. While an earlier Space Force launch of a GPS III satellite was delayed due to the COVID-19 situation, the X-37B launch has remained on track. Despite being launched by the Space Force, the X-37B remains an Air Force platform. The military has been elusive about what the Boeing-built space plane has been doing on its various missions, beyond noting that it has been used for a number of on orbit experiments. The vehicle has spent a cumulative 2,865 days on orbit, with its last flight being the longest at a record breaking 780 days. In a May 6 press release, the Space Force opened up about some of the experiments that would hitch a ride into orbit aboard the X-37B, most notably one that will deliver solar power to the ground from space via radio frequency microwave energy. That experiment is likely related to the Air Force Research Laboratory's Space Solar Power Incremental Demonstrations and Research (SSPIDR), an effort to collect solar energy with high-efficiency solar cells, convert it to radio frequency, and then beam it to earth. That technology could provide an uninterrupted energy source to expeditionary forces at forward operating bases that have limited access to traditional power sources. “The Space Solar Power Incremental Demonstrations and Research (SSPIDR) Project is a very interesting concept that will enable us to capture solar energy in space and precisely beam it to where it is needed,” Col. Eric Felt, director of AFRL's Space Vehicles Directorate, said in an October statement on the effort. “SSPIDR is part of AFRL's ‘big idea pipeline' to ensure we continue to develop game-changing technologies for our Air Force, DoD, nation, and world.” AFRL has awarded Northrop Grumman a $100 million contract to support space-based experiments supporting SSPIDR. The X-37B will also deploy the FalconSat-8, an educational small satellite developed by the U.S. Air Force Academy that will carry five experimental payloads. Also on board will be two National Aeronautics and Space Administration experiments that will study the effects of radiation and the space environment on seeds used for food products. One reason the vehicle will carry more experiments than prior mission is the attachment of a new service module to the aft of the spacecraft, which will host multiple experiments. “This launch is a prime example of integrated operations between the Air Force, Space Force, and government-industry partnerships,” said Air Force Chief of Staff Gen. David Goldfein. “The X-37B continues to break barriers in advancing reusable space vehicle technologies and is a significant investment in advancing future space capabilities.” https://www.c4isrnet.com/battlefield-tech/space/2020/05/07/here-are-a-few-of-the-experiments-hitching-a-ride-on-the-air-forces-secret-space-plane/

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

    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

  • Second tranche of 18 Rafale fighters for Indonesia enters order backlog - APDR

    15 août 2023 | International, Aérospatial

    Second tranche of 18 Rafale fighters for Indonesia enters order backlog - APDR

    As part of the contract signed by Indonesia on February 2022 for the acquisition of 42 Rafale, the second tranche of 18 Rafale came into force.

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