3 janvier 2023 | International, Aérospatial
Egypt buys 12 Chinook helos from Boeing
Egypt plans to replace its fleet of CH-47D helos with the âFâ model.
19 septembre 2018 | International, Sécurité
White House sets ‘new direction’ in biodefense strategy
By: Robert Burns, The Associated Press
WASHINGTON — The Trump administration on Tuesday released a new biodefense strategy that it said takes a more comprehensive approach to preparing the nation for deliberate biological attacks and natural outbreaks of infectious disease.
The goal of the strategy, which was required by Congress, is to more effectively prevent, prepare for and respond to biological threats, which the document said are "among the most serious threats" facing the U.S. and the world.
"Biological threats emanate from many sources, and they know no borders," Trump said in a written statement. "They have great potential to disrupt the economy, exact a toll on human life, and tear at the very fabric of society."
Trump said his administration's plan takes a "new direction" with a more coordinated, centralized approach based on lessons learned from past incidents such as the West Africa Ebola epidemic of 2014.
The Department of Health and Human Services is designated as the lead agency in coordinating federal biodefense actions and assessing whether the plan is working.
A privately sponsored group that has studied biodefense issues since 2014 applauded the White House's strategy. The Blue Ribbon Study Panel on Biodefense has warned that the U.S. is dangerously vulnerable to a large-scale biological attack and has urged Washington to develop a more comprehensive strategy.
"The White House made a great start with the implementation plan they included with the strategy," said Tom Ridge, the former Pennsylvania governor who is co-chairman of the Blue Ribbon Study Panel. "We look forward to the White House assigning responsibilities for each element of this plan to specific federal departments and agencies, and establishing timelines for their completion."
At a White House briefing, John Bolton, the president's national security adviser, told reporters there is "no particular immediate threat" of biological attack.
Alex Azar, the secretary of Health and Human Services, told reporters the threats are "very real and they're growing." He said the strategy is the first to include naturally occurring threats like the Ebola virus.
Previous approaches focused on the threat of terrorists unleashing deadly germs or a nation such as North Korea launching a biological attack.
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25 janvier 2021 | International, Aérospatial
L’armée face aux enjeux de la « guerre spatiale »
Le Figaro analyse les enjeux de défense liés à la maîtrise de l'espace, à l'heure où près de 90 États disposent d'au moins un satellite en orbite. Selon le CNES, 2 200 satellites en fonctionnement sont aujourd'hui en orbite autour de la Terre. L'augmentation est exponentielle: en dix ans, le nombre de satellites opérationnels a plus que doublé, notamment sous l'impulsion des acteurs privés du «New Space», tels que SpaceX. La France a établi une doctrine militaire et un commandement de l'espace en 2020, avec deux objectifs : des capacités de connaissance et, à moyen terme, de défense active. « La clé, c'est détecter, identifier, agir », explique le général Lavigne, chef d'état-major de l'armée de l'Air et de l'Espace. Des capacités de suivi sont développées : pour la France, l'approche du satellite franco-italien de télécommunication militaire Athena-Fidus en 2017 a ainsi été détectée par le système GeoTracker, développé par ArianeGroup, équipé de huit télescopes au sol. L'armée veut aussi se doter de moyens de défense active. En 2023, elle doit lancer le démonstrateur Yoda, qui sera capable d'accompagner des satellites en orbite géostationnaire. Au sein du CSpO (Combined Space Operation), la France cherche aussi depuis un an à établir avec ses partenaires des Five Eyes (États-Unis, Royaume-Uni, Canada, Australie, Nouvelle-Zélande) et de l'Allemagne un « code de bonne conduite ». Dans un entretien accordé au Monde, les chercheurs Marc Julienne et Isabelle Sourbès-Verger décryptent par ailleurs la montée en puissance de la Chine dans le domaine de l'espace, et ses enjeux militaires. Le Figaro et Le Monde du 25 janvier
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17 août 2020 | International, Aérospatial
New Tool Developed to Improve Pilot Visibility
8/14/2020 By Connie Lee Special Operations Command and the Army are adopting new technology to improve visibility during flight operations in degraded conditions. Sierra Nevada Corp. was selected for the third phase of the degraded visual environment pilotage system competition following a 2015 airborne test. The company's most recent contract modification includes full-rate production, according to a company news release. Paul Bontrager, Sierra Nevada's vice president for government relations, said the system will help pilots operate in areas with limited visibility such as fog and dust. “We've always had a hard time flying in snow and flying in dirt,” he said. “In Army aviation we've been waiting for this technology to mature, and it has.” To enable pilots to maintain their situational awareness, the product has multiple features such as cameras and radars, he said. The system also has light detection and ranging. By combining sensors, a pilot is able to see a more accurate picture of the surrounding environment. Additionally, there are different versions of the system with varying amounts of sensors, he noted. Sierra Nevada can take data from multiple sensors and fuse the imagery onto a screen, he said. “A camera can do so much,” he said. “But then a lidar can actually paint the landing area and give a lot of detail about the surface.” The military has often had to fly in challenging operating environments, he noted. In the Middle East, pilots would often experience “brown out,” which occurs when visibility is impacted by dust and sand which has resulted in crashes, he said. “When we got embroiled in the wars in Iraq and Afghanistan, it was a significant thing,” he said. “We actually had more losses in the more recent years when it wasn't direct combat operations. We have more losses annually due to flying into planet Earth unintentionally than we do from enemy fire.” The degraded visual environment pilotage system is likely to be used in Army Chinooks and Black Hawks, and any aircraft with lifting capacity, he noted. “These are aircraft that have to land and take-off ... in all environments,” he said. “This is where it's most likely to be used initially ... and hopefully all aircraft will be outfitted with this technology eventually.” https://www.nationaldefensemagazine.org/articles/2020/8/14/new-tool-developed-to-improve-pilot-visibility