28 février 2024 | International, Naval
Latest Damen design an answer to increased use of drone technology at sea.
6 avril 2022 | International, Terrestre
The Czech Republic is looking to add a slew of new helicopters in the wake of the Russian invasion of Ukraine, and new information on what caused a B-2 steal...
17 juillet 2018 | International, Aérospatial
By SAMANTHA MASUNAGA A decade after the U.S. Air Force commissioned the next generation of GPS satellites, the first of these spacecraft is finally set to launch into orbit later this year. As with other national security missions, a roughly 200-foot-tall rocket will blast the massive satellite to space, fulfilling a contract worth more than $80 million. But as nations develop technology to disable or shoot down satellites — as China did to one of its own satellites with a ground-based ballistic missile in 2007 — the U.S. military has started to look at options for rapidly and cheaply launching smaller crafts into space. An experimental program spearheaded by a Pentagon research agency could eventually be part of that solution. The Defense Advanced Research Projects Agency, along with aerospace giant Boeing Co., is developing a reusable spaceplane expected to launch small satellites 10 times in 10 days. The vehicle's first test flight is set for 2021, which hints at the Defense Department's growing interest in reusable rocket technology, particularly its potential to drive down launch costs and speed up turnaround time. In recent weeks, the spaceplane's rocket engine, known as the AR-22, completed 10 test fires in 240 hours without need for refurbishments or major repairs, said Jeff Haynes, program manager at Aerojet Rocketdyne. The test firing took place at NASA Stennis Space Center in Mississippi from June 26 to July 6. The engine test is “really good progress,” said Claire Leon, director of Loyola Marymount University's graduate program in systems engineering and former director of the launch enterprise directorate at the U.S. Air Force's Space and Missile Systems Center. “SpaceX has had its success,” she said. “I think this engine test also demonstrates that other companies are doing the technology development and having success that will enable reusability.” The title of first reusable system belongs to NASA's Space Shuttle, though more recently, several commercial space firms, including Microsoft co-founder Paul Allen's Stratolaunch and British billionaire Richard Branson's Virgin Orbit, have developed systems that would reuse aircraft to launch satellites from the belly of a plane. https://www.stripes.com/news/the-military-is-building-a-space-plane-now-it-looks-to-have-an-engine-up-to-the-task-1.538009
29 mars 2019 | International, Autre défense
BETHESDA, Md., March 26, 2019 – Four Lockheed Martin (NYSE: LMT) teams advance as finalists in the 22nd Applied Ergonomics Conference Ergo Cup® Competition, which showcases innovation aimed at reducing risk of injury in the workplace. Lockheed Martin will be one of over 20 companies discussing their ergonomic innovations in the Ergo Cup Competition. “With more than 100,000 employees developing a broad portfolio of products and solutions for national defense, cyber security, logistics and energy we must modernize our approach to ergonomics, safety and health,” says Lockheed Martin Fellow and Corporate Ergonomist Anthony Banks. “This requires new techniques and tooling. Some examples of this include 3D printed tools for helicopter assembly, performing ergonomic evaluations in a virtual environment, and drastically improving manufacturing applications. By focusing on safety, wellbeing and improved business practices, Lockheed Martin is committed to prioritizing sustainability to innovate for the future.” The Lockheed Martin teams competing include: Virtual Reality to Enhance Ergonomics Integration, THAAD Missile Canister Shock Isolator Compression Tool, Weightless High Torque Motor Application for F-35 Vertical Tails Installation and the CH-53K helicopter harness installation from Sikorsky, a Lockheed Martin company. Since their implementation in the workplace, each of the team's ergonomic innovations have yielded outstanding sustainability results and are projected to deliver continued cost savings. The 22nd Applied Ergonomics Conference (AEC) convenes in New Orleans March 25-28 for the annual meetup and exchange of ideas and best practices in ergonomics, healthcare, safety, human resources and risk management. To learn more about #AppliedErgo2019, visit www.iise.org/AEC. https://news.lockheedmartin.com/2019-03-26-Lockheed-Martin-Uses-Virtual-Reality-and-3D-Printing-to-Reduce-Injuries-on-the-Job