16 juin 2020 | International, Aérospatial
By ARIE EGOZIon June 15, 2020 at 1:02 PM
TEL AVIV: The Israeli air force's F-35 special test aircraft is set to arrive in Israel, suitably enough, on the Fourth of July, along with three more Joint Strike Fighters. The arrival will start a planned process of upgrading the IAF's F-35 aimed at making them the main target supplier for the Israeli defense forces.
In November another three are scheduled to arrive, bringing the IAF's total to 27 out of the 50 in the current contract.
The special test aircraft was officially delivered to the IAF a year ago and some new systems developed by Israel have been installed. But the most sensitive systems will be installed only after the aircraft lands in Israel.
Currently, the IAF operates 20 F-35 (Adir) and uses them in combat. One of the key capabilities of the F-35 is its capability to absorb electronic signals from radars and air defense systems and to quickly classify them, geolocate them, and display them to the pilot. Then the aircraft can distribute that data to other combatants.
The critical data is collected by the aircraft's passive antennas embedded in the F-35's edges. They feed the signals information to the jet's computers. Using interferometers, the slightest time delay between when a signal hits one antenna compared to another, azimuth and range can be defined and target-quality coordinates created on where the threatening radio frequency emission is coming from.
The already very advanced ELINT system of the F-35 is going to be further upgraded by the IAF, working with Israel's defense companies.
Since the stealth fighter aircraft first arrived in Israel, some locally-made systems have been partially tested in different scenarios, but the test aircraft will allow these new systems to be put completely through their paces.
The test aircraft will enable each of the Israeli F-35s to function as a “Target Generator” for all Israeli ground and naval forces thanks to what some have described as an Israeli-built command-and-control system.
The Israeli companies that are developing systems for the IAF's F-35's are reluctant to provide details about the systems under development.
Eitan Ben Eliyahu, former commander of the IAF, told Breaking Defense that the F-35 will bring two main capabilities to the Israeli air force's existing ones: “The stealth of course is the obvious one and it is crucial in an area where different forces deploy advanced anti-aircraft systems.
“The second capability is the one that allows this aircraft to receive and distribute all kinds of combat data from a long list of sensors. This,” Ben Eliyahu said, “is very important for an air force that is performing combat missions almost on a daily basis.”
https://breakingdefense.com/2020/06/israelis-to-boost-f-35-fleets-electronic-warfare
5 septembre 2023 | International, Terrestre
The Canadian branch of an international humanitarian organization is calling on Ottawa to step up pressure on its allies to halt the distribution and use of cluster munitions.
2 juillet 2019 | International, Naval
By: David B. Larter WASHINGTON — With bigger, faster missiles in development and bound for the fleet, the U.S. Navy's engineers are considering installing upgraded launchers on the stalwart Arleigh Burke-class destroyers. The head of Naval Sea Systems Command, Vice Adm. Thomas Moore, told an audience at a conference of naval engineers that the Arleigh Burkes — due to their vertical launch system and Aegis missile capabilities — were easier to keep relevant than other destroyers such as the Adams and Spruance classes. Still, with the service attempting to keep the ships longer, new launchers may be in order to pace the threat from Russia and China, which have been developing their own hypersonic weapons. “Vertical launch system has been a real game changer for us. We can shoot any number of things out of those launchers,” Moore said. “We'll probably change those out and upgrade them for prompt strike weapons down the road.” Putting hypersonic weapons on surface ships would greatly increase the effectiveness of their strike capabilities. The current main strike weapon, the Tomahawk Land Attack Missile, is a subsonic missile that is vulnerable to evermore advanced Russian and Chinese air defenses. Prompt strike, which refers to a Pentagon-wide effort to field hypersonic weapons to quickly strike anywhere in the world, are most likely coming first to submarines, said Thomas Callender, a retired submarine officer and analyst with the Heritage Foundation. Because subs are stealthy and can sneak in close to land undetected more easily than a surface ship, they make the most sense. “They're looking at putting hypersonics on submarines first because where you can get access,” Callender said. “You can potentially then put them on surface ships as an added capability for them, but the submarines would be the priority for access and the ranges you can achieve.” The Navy is designing a new large surface combatant to replace the cruisers and ultimately the destroyers with larger missiles in mind. As a result, the ship may be fairly large, former Surface Warfare Director Rear Adm. Ron Boxall told Defense News last year. The benefit of larger vertical launch cells is that you can pack more missiles into each cell, if you are not using the cell for the larger hypersonic missiles, Boxall said. “We are going to need, we expect, space for longer-range missiles,” he said. They are going to be bigger. So the idea that you could make a bigger cell, even if you don't use it for one big missile, you could use it for multiple missiles — quad-pack, eight-pack, whatever.” The missiles that would go into a larger launcher are still very much under development. The Navy is teamed with the Army to develop a booster for a hypersonic missile, and the Army is leading a team with the Navy and Air Force to internally build a common glide body that is producible on a larger scale. Radar upgrades Naval Sea Systems Command is also examining installation of a scaled-down version of the air and missile defense radar AN/SPY-6, under development for the Flight III DDG. The scope of that project, however, remains to be determined. “We are looking at a scaled-back version of the air and missile defense radar to back-fit the Flight Is and Flight IIs, similar to how we are looking for a version of the [Enterprise Air Search Radar] developed for [the Ford-class aircraft carriers] to back-fit on some of the old Nimitz class,” Moore said. “I'm not sure how many ships it is going to go on, we're still doing the design work. It's a fairly significant change to the structure of the ship, AMDR versus Spy.” The purpose of the upgrade would be used to track the faster, more dynamic missiles under development by Russia and China. The array is a smaller version of the SPY-6 intended for the Flight III DDG, the first of which is now under construction at Huntington Ingalls Industries. The SPY-6 destined for DDG-125 will have 37 radar modular assemblies, or RMA, which are 2-foot-by-2-foot-by-2-foot boxes that use gallium nitride technology to direct radar energy on air targets. The Flight IIA version will have 24 RMAs in the array. A version of the radar planned for the FFG(X) future frigate is a nine-RMA configuration. The Navy wants to upgrade all of its DDGs to Aegis Baseline 9 or higher with a ballistic missile defense capability and extend the service lives to 45 years as part of an effort to grow the fleet. But the Navy is going to try to get 50 years out of its Flight IIA ships. The IIAs make up the bulk of the DDG fleet, with 46 total planned for the service — DDG-79 through DDG-124. DDG-127 will also be a Flight IIA. That upgraded SPY-6 will be far easier to maintain than the current SPY-1D. Raytheon claims the radar can be maintained by simply removing an RMA and switching it out with a new one, with the rest of the work performed offsite. https://www.defensenews.com/naval/2019/06/30/navy-eyes-new-launchers-on-stalwart-destroyers-for-putting-hypersonics-afloat/
6 février 2020 | International, Aérospatial
Via leur agence chargée du développement de technologies militaires, les États-Unis mettent au point un nouveau type de drone. Les X-61A, ou "Gremlins" pour les intimes, sont de petits engins déployés en groupes et directement en vol à l'aide d'avions C-130. L'agence américaine chargée du développement de nouvelles technologies militaires (Darpa) a annoncé à la mi-janvier avoir effectué avec succès les premiers essais d'un nouveau type de drone, capable d'être largué et récupéré par un avion en plein vol. Le test initial se serait déroulé en novembre dernier. Après avoir été l'ché par un C-130A, l'engin X-61A aurait volé durant un peu plus d'une heure et demie. Ce test constitue la troisième phase d'un programme baptisé Gremlins, dont l'objectif est le développement d'une nouvelle gamme de drones sans pilote, déployés en nuées, réutilisables et peu coûteux à produire. Les flottes pourraient être déployées depuis des avions éloignés des thé'tres d'opération, afin de garantir une meilleure sécurité pour les opérateurs. Une fois leurs missions terminées, les "Gremlins" seraient récupérés directement dans les airs, avant de passer une journée de réparation et de repartir. Un drone perdu lors des essais L'essai de novembre a permis aux équipes de collecter suffisamment de données sur les performances, le fonctionnement et les systèmes de commandes et de contrôles aériens et terrestres des drones. Une anomalie de parachute a entraîné la perte de l'un des cinq appareils. Les quatre autres restent cependant opérationnels et disponibles pour d'autres séries de tests, prévus pour cette année. La prochaine étape du programme comprendra une évaluation complète des données récoltées, ainsi que l'analyse de l'échec du déploiement du parachute du cinquième drone. S'ensuivra un nouveau vol d'essai durant le printemps au Dugway Proving Ground, un site de tests de l'armée américaine situé dans l'Utah. D'autres avions pourraient servir pour le transport des engins Les X-61A "Gremlins" sont développés par la société californienne Kratos Defense & Security Solutions, en collaboration avec, l'entreprise Dynectics, située dans l'Alabama et spécialisée dans les systèmes informatiques. Conçu par Lockheed Martin, le C-130 est, pour le moment, l'unique appareil servant aux essais des Gremlins. Mais les services en charge du programme envisagent d'adapter d'autres avions pour le transport des drones. Les X-61A peuvent emporter jusqu'à 70 kg de capteurs chacun, ce qui leur permet d'effectuer un grand nombre de missions différentes. https://www.usinenouvelle.com/article/les-etats-unis-developpent-les-gremlins-de-nouveaux-drones-deployables-directement-en-vol.N926169