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June 8, 2020 | International, Aerospace

Le F-35 adoubé pour la lutte anti-radar

Le Pentagone veut faire du F-35 le prochain avion spécialisé dans les missions de destruction des défenses anti-aériennes. Logique !

Un programme lancé par le Pentagone va se traduire par l'ajout de modifications structurelles sur les F-35 plus récents pour leur permettre de remplir plus efficacement les missions SEAD et DEAD (Suppression/Destruction of Enemy Air Defenses). Ces modifications s'appliqueront à tous les modèles de F-35, aux Etats-Unis et auprès des autres pays clients.

Jusqu'à présent, l'appareil pouvait remplir la mission SEAD de manière empirique, en utilisant sa capacité de bombardement et ses équipements de guerre électronique adossés à sa faible signature radar. L'exigence d'une modification structurelle semble indiquer que l'avion de Lockheed Martín pourra désormais faire plus et mieux, avec par la capacité d'emporter de nouveaux capteurs et de nouveaux armements. F.L.

https://www.aerobuzz.fr/breves-defense/le-f-35-adoube-pour-la-lutte-anti-radar/

On the same subject

  • What reduced size, weight and power mean on the battlefield

    August 22, 2018 | International, C4ISR

    What reduced size, weight and power mean on the battlefield

    Computers on the battlefield take a beating. Beyond the everyday wear and tear, they also must endure extreme temperatures and often violent vibrations. To help ensure its systems give soldiers and commanders the information they need, the Army relies on its Mounted Family of Computer Systems program. Known as MfoCS, pronounced em-fox, the program covers detachable tablets to fully-loaded, vehicle-mounted workstations. C4ISRNET spoke recently with Bill Guyan, vice president of business development for Leonardo DRS, about advances in battlefield computing. C4ISRNET: We hear a lot about a new emphasis on the hardening of security of contractors. And not just contractors, but primes, and then their contractors. Obviously this has become a point of concern for DOD leadership. Bill Guyan: One of the big areas of emphasis for the Army in the procurement of the [Mounted Family of Computer Systems] (MFoCS) and particularly MFoC2 II, were areas related to security, both from a cyber security standpoint and the ability to assure that the system was free from malware or any external threat. So there's a very comprehensive supply chain risk management strategy put in place and for this program we believe that this is the most secure edge computing system that the Army's ever purchased. It's absolutely critical that it be so, since ultimately there will be somewhere between a 100,000 and 125,000 of these systems fielded across the Army and Marine Corps, at the edge of the battlefield with each one of these systems serving as potential on ramp to the network and in an area of situational awareness that is absolutely mission critical. There was a time when we derived quick benefit from having an advantage and a capability that our opponents didn't. And over time the capability has evolved from a nice to have capability to a mission critical capability that we'd be hard pressed to fight without. C4ISRNET: The Army has put a lot of emphasis on size, weight and power. Can you explain how that manifests itself on the battlefield? Guyan: We optimize size, weight and power in two ways. At the hardware level we optimize by staying at the leading edge of available technologies, available commercial technologies and rapidly adapting and adopting them for employment in this mission critical extreme environment. The computers and displays are the soldiers' path to the network. It has to work at -40 centigrade and it has to work at 80 degrees centigrade. It has to work in extreme vibration and it has to work in contested EMI environments. It has to work all the time. For example, we led the charge in the adoption and fielding of solid state hard drives versus rotating media, which allowed us to not only improve the resiliency of the system, but also to reduce size, because we no longer have to isolate the rotating hard drive from the shock and vibration. We also migrated from the old backlight technology to an LED backlight, which is much more reliable, particularly in shock vibration at temperature extremes. But it also requires far less power. The other thing that we've been able to do is rapidly adapt the latest processor technologies when they're available. Of course, processors continue to get faster, smaller, and use less power. We're able to make sure that every generation of system can deliver more computing capability for less power, and less power means less heat. Full article: https://www.c4isrnet.com/show-reporter/technet-augusta/2018/08/21/what-reduced-size-weight-and-power-mean-on-the-battlefield/

  • US Space Force completes upgrade to help protect GPS capabilities

    August 10, 2020 | International, Aerospace

    US Space Force completes upgrade to help protect GPS capabilities

    Nathan Strout WASHINGTON — The U.S. Space Force has completed upgrades to the Global Position System's ground segment that will allow it to partially use a new military GPS signal known as M-code, the service announced Aug. 6. While the new anti-spoofing, anti-jamming, encrypted M-code signal has been available on many GPS satellites for years, the military has not had the corresponding ground and user equipment to access and leverage it. The $6.2 billion Next-Generation Operational Control System, or OCX, being built by Raytheon Technologies for that purpose is five years behind schedule and isn't expected to be delivered until June 2021. To provide access for war fighters in the interim, the Air Force awarded Lockheed Martin a contingency operations contract in 2016 to build an M-code upgrade to the current GPS Operational Control System. That M-Code Early Use upgrade will allow war fighters with the appropriate equipment to use some aspects of the new military signal until OCX is ready. M-Code Early Use was delivered in June 2019, entered a trial period in October and was approved for everyday use in March 2020. The M-Code Early Use hardware and software upgrades were completed July 27, clearing the path for the system to enter the operational acceptance phase in November 2020. Installation took place at the master control station at Schriever Air Force Base, Colorado and the alternate master control stations at Vandenberg Air Force Base, California. The upgrades allow OCS to task, upload and monitor M-code on the GPS constellation and will support testing and fielding military ground user equipment that can receive the signal. “Working closely with Lockheed Martin and our other mission partners — with the common national goal of providing enhanced [positioning, navigation and timing] signal security and safety always in sharp focus — means we're able to deliver the right mission capability faster to our warfighters,” said Lt. Col. Steven Nielson, program manager of the M-Code Early Use project. https://www.c4isrnet.com/battlefield-tech/space/2020/08/07/space-force-complete-m-code-upgrades-to-gps-control-segment/

  • Pakistan to replace Orion patrol aircraft with Brazilian jetliner

    October 27, 2020 | International, Aerospace, Naval

    Pakistan to replace Orion patrol aircraft with Brazilian jetliner

    Usman Ansari ISLAMABAD — Pakistan's Navy has selected the Embraer Lineage 1000 jetliner to replace its P-3C Orion long-range maritime patrol aircraft, a source with knowledge of the program has confirmed to Defense News. Outgoing naval chief Adm. Adm. Zafar Mahmood Abbasi announced Oct. 6 that the Navy would replace its P-3C Orion fleet with 10 converted commercial jets, the first of which has been ordered. However, he did not identify the type. The Ministry of Defence Production, which handles acquisition, did not return requests for comment regarding the conversion and possible partners. With only a single aircraft ordered thus far, the program is in its early stages. When converted for Pakistani service, the aircraft will be called Sea Sultan. It is unclear if the aircraft is being acquired directly from the manufacturer or another party. Embraer did not respond to requests for comment. The question of what issues may arise in converting the aircraft was put to Douglas Barrie, an aerospace analyst at the International Institute for Strategic Studies: “Using a commercial turbofan engine-powered aircraft as the basis for an ASW [anti-submarine warfare] platform is not unheard of. After all, the U.S. P-8 is a Boeing 737-800 derivative," he said. But there are challenges in converting the aircraft, he added, "not least of all if internal weapons carriage is required where a bomb bay will need to be cut into the airframe.” The question of what issues may arise in converting the aircraft was put to Douglas Barrie, an aerospace analyst at the International Institute for Strategic Studies: “Using a commercial turbofan engine-powered aircraft as the basis for an ASW [anti-submarine warfare] platform is not unheard of. After all, the U.S. P-8 is a Boeing 737-800 derivative," he said. But there are challenges in converting the aircraft, he added, "not least of all if internal weapons carriage is required where a bomb bay will need to be cut into the airframe.” “[It is a] significant undertaking, and risk management is going to be important,” he said, adding that it's likely Embraer will be asked to help with the conversion, “otherwise the challenges just get all the greater.” Frederico Lemos, Embraer's defense representative who handles business in Asia, did not respond to Defense News' questions about whether the company is or would be involved in the conversion process. https://www.defensenews.com/naval/2020/10/26/pakistani-navy-confirms-brazilian-jetliner-will-replace-orion-patrol-aircraft/

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