7 septembre 2022 | International, Aérospatial
Rolls-Royce receives U.S military contracts valued at $1.8 billion
The contract is valued at up to $1.013 billion, spanning five years
24 septembre 2019 | International, Aérospatial, Naval, Terrestre
La Russie a lancé lundi 16 septembre de grandes manœuvres militaires annuelles, mobilisant jusqu'à samedi 128.000 hommes dans le centre du pays, dont des militaires et des avions chinois, avec pour scénario de repousser une attaque islamiste.
Organisées essentiellement dans la région d'Orenbourg, frontalière du Kazakhstan, les manœuvres Tsentr-2019 impliqueront «plus de 20.000 engins militaires, environ 600 appareils volants et jusqu'à 15 navires», selon un communiqué du ministère russe de la Défense. En plus des soldats russes, des troupes venues de Chine, d'Inde, du Pakistan et de plusieurs pays d'Asie centrale doivent participer à ces manœuvres. Une vingtaine d'avions et d'hélicoptères chinois prendront notamment part aux exercices. Ceux-ci se se basent sur un scénario dans lequel un pays indéterminé, converti à l'islamisme radical, entre en conflit avec la Russie.
«Un Etat imaginaire émerge au sud-ouest de la Russie. Ses leaders partagent les idées extrémistes des organisations terroristes internationales. Ce pays imaginaire, possédant une armée développée, tente d'exercer une pression sur la Russie, y compris militaire», e expliqué la semaine dernière le vice-ministre russe de la Défense, Alexandre Fomine. «L'escalade des tensions évolue finalement vers un conflit armé», a-t-il poursuivi, cité par l'agence officielle TASS, au cours d'un briefing.
La première phase des manœuvres sera consacrée à coordonner le commandement, repousser des attaques aériennes et mener des opérations de reconnaissance. Dans la seconde phase, la coalition internationale formée par la Russie dans ces exercices mènera des frappes massives contre l'ennemi, précise le ministère de la Défense. La Russie organise chaque année, au mois de septembre, de grandes manœuvres militaires. Les précédentes, organisées en Sibérie orientale et dans l'Extrême-Orient russe, avaient mobilisé 300.000 hommes et tout l'arsenal moderne de l'armée russe, dont les missiles Iskander, capables de transporter des ogives nucléaires.
L'année précédente, les exercices nommées Zapad-2017 («Ouest-2017») s'étaient déroulés près de la frontière avec la Lituanie et la Pologne, provoquant la fureur de l'Otan et de plusieurs pays européens qui avaient dénoncé une provocation.
7 septembre 2022 | International, Aérospatial
The contract is valued at up to $1.013 billion, spanning five years
16 décembre 2021 | International, Aérospatial
Lockheed Martin will offer a T-50A variant as the Air Force's Advanced Tactical Trainer, saying it will achieve “competitive pricing.
17 décembre 2018 | International, C4ISR
By: Dan Elliott, The Associated Press DENVER — After months of delays, the U.S. Air Force is about to launch the first of a new generation of GPS satellites, designed to be more accurate, secure and versatile. But some of their most highly touted features will not be fully available until 2022 or later because of problems in a companion program to develop a new ground control system for the satellites, government auditors said. The satellite is scheduled to lift off Tuesday from Cape Canaveral, Florida, aboard a SpaceX Falcon 9 rocket. It's the first of 32 planned GPS III satellites that will replace older ones now in orbit. Lockheed Martin is building the new satellites outside Denver. GPS is best-known for its widespread civilian applications, from navigation to time-stamping bank transactions. The Air Force estimates that 4 billion people worldwide use the system. But it was developed by the U.S. military, which still designs, launches and operates the system. The Air Force controls a constellation of 31 GPS satellites from a high-security complex at Schriever Air Force Base outside Colorado Springs. Compared with their predecessors, GPS III satellites will have a stronger military signal that's harder to jam — an improvement that became more urgent after Norway accused Russia of disrupting GPS signals during a NATO military exercise this fall. GPS III also will provide a new civilian signal compatible with other countries' navigation satellites, such as the European Union's Galileo system. That means civilian receivers capable of receiving the new signal will have more satellites to lock in on, improving accuracy. "If your phone is looking for satellites, the more it can see, the more it can know where it is," said Chip Eschenfelder, a Lockheed Martin spokesman. The new satellites are expected to provide location information that's three times more accurate than the current satellites. Current civilian GPS receivers are accurate to within 10 to 33 feet (3 to 10 meters), depending on conditions, said Glen Gibbons, the founder and former editor of Inside GNSS, a website and magazine that tracks global navigation satellite systems. With the new satellites, civilian receivers could be accurate to within 3 to 10 feet (1 to 3 meters) under good conditions, and military receivers could be a little closer, he said. Only some aspects of the stronger, jamming-resistant military signal will be available until a new and complex ground control system is available, and that is not expected until 2022 or 2023, said Cristina Chaplain, who tracks GPS and other programs for the Government Accountability Office. Chaplain said the new civilian frequency won't be available at all until the new control system is ready. The price of the first 10 satellites is estimated at $577 million each, up about 6 percent from the original 2008 estimate when adjusted for inflation, Chaplain said. The Air Force said in September it expects the remaining 22 satellites to cost $7.2 billion, but the GAO estimated the cost at $12 billion. The first GPS III satellite was declared ready nearly 2½ years behind schedule. The problems included delays in the delivery of key components, retesting of other components and a decision by the Air Force to use a Falcon 9 rocket for the first time for a GPS launch, Chaplain said. That required extra time to certify the Falcon 9 for a GPS mission. The new ground control system, called OCX, is in worse shape. OCX, which is being developed by Raytheon, is at least four years behind schedule and is expected to cost $2.5 billion more than the original $3.7 billion, Chaplain said. The Defense Department has struggled with making sure OCX meets cybersecurity standards, she said. A Pentagon review said both the government and Raytheon performed poorly on the program. Raytheon has overcome the cybersecurity problems, and the program has been on budget and on schedule for more than a year, said Bill Sullivan, a Raytheon vice president in the OCX system. Sullivan said the company is on track to deliver the system to the Air Force in June 2021, ahead of GAO's estimates. The Air Force has developed work-arounds so it can launch and use GPS III satellites until OCX is ready to go. While the first GPS III waits for liftoff in Florida, the second is complete and ready to be transported to Cape Canaveral. It sits in a cavernous "clean room" at a Lockheed Martin complex in the Rocky Mountain foothills south of Denver. It's expected to launch next summer, although the exact date hasn't been announced, said Jonathon Caldwell, vice president of Lockheed Martin's GPS program. Six other GPS satellites are under construction in the clean room, which is carefully protected against dust and other foreign particles. "It's the highest-volume production line in space," Caldwell said. For the first time, the Air Force is assigning nicknames to the GPS III satellites. The first one is Vespucci, after Amerigo Vespucci, the Italian navigator whose name was adopted by early mapmakers for the continents of the Western Hemisphere. https://www.airforcetimes.com/news/your-air-force/2018/12/16/us-air-force-set-to-launch-1st-next-generation-gps-satellite