11 juin 2021 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité
21 décembre 2020 | International, Aérospatial
The military is this close to nabbing Gremlins from midair
WASHINGTON — The U.S. military recently came within inches of successfully retrieving three unmanned air vehicles in flight with a C-130 aircraft, bringing the Gremlins program tantalizingly close to a significant milestone.
The Defense Advanced Research Projects Agency, the Pentagon's emerging technology arm, wants to demonstrate the ability to launch and recover four cheap, reusable unmanned aerial vehicles — the Gremlins — within 30 minutes in flight. The program uses X-61A Gremlins Air Vehicle (GAV) developed by Dynetics, a Leidos subsidiary. The GAVs are built to dock with a C-130 aircraft via an extension, similar to an airborne refueling operation.
Dynetics secured a 21-month, $38.6 million award for the third phase of the Gremlins effort in 2018.
While GAVs are relatively small, they have a range of more than 600 miles and can be equipped with a variety of sensors and technologies for different missions. The ability to distribute and collect GAVs from the air could keep them beyond the range of adversary defenses, according to DARPA, expanding the potential impact of unmanned aerial vehicles on the battlefield. Once recovered, GAVs are expected to be mission ready within 24 hours.
In the latest demonstration Oct. 28, DARPA made nine attempts to collect the GAVs with a docking mechanism extended from the C-130 aircraft. While none of the attempts was successful, with each GAV eventually parachuting to the ground, DARPA insisted the effort validated all autonomous formation flying positions and safety features.
“All of our systems looked good during the ground tests, but the flight test is where you truly find how things work,” said Scott Wierzbanowski, program manager for DARPA's Gremlins effort, in a Dec. 10 statement. “We came within inches of connection on each attempt but, ultimately, it just wasn't close enough to engage the recovery system.”
Given the GAVs' performance and the data collected over the nine attempts, Wierzbanowski said success is imminent.
“We made great strides in learning and responding to technological challenges between each of the three test flight deployments to date,” he said. “We were so close this time that I am confident that multiple airborne recoveries will be made in the next deployment. However, as with all flight testing, there are always real-world uncertainties and challenges that have to be overcome.”
The next attempt will take place in spring 2021.
While the Gremlins effort is ongoing, the U.S. Army has made strides in its own effort to retrieve small drones midair. During a recent demonstration, the Army was able to snag air-launched effects (ALE) — effectively small drones — from the air using the flying launch and recovery system (FLAReS). FLAReS uses a hook to catch the ALEs by the wing in flight, saving them from the wear and tear of a belly landing on the ground.
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18 novembre 2019 | International, C4ISR
How Lockheed Martin Is Trying To Link Everything on the Battlefield
BY PATRICK TUCKER Experiment by experiment, the company is weaving aircraft, ground vehicles, satellites, and the rest into a network that will someday give commanders unprecedented decision-support options. The Pentagon's efforts to digitally connect everything on the battlefield is has a big challenge to overcome: getting disparate vehicles and weapons to share data. “The interoperability of various, different systems, that's really where we are struggling. We don't have that machine to machine connection to begin with,” Air Force Brig. Gen. David Kumashiro recently told the audience at last week's Defense One Outlook 2020 conference. Over the past several years, Lockheed Martin officials say they've been working to build those connections, piece by piece and plane by plane. They started by asking, “How would we go fight in 2030, 2045?” and then working backwards, J.D. Hammond, vice president of C4ISR systems, told reporters at one of the company's offices. The company began by asking “How would we go fight in 2030, 2045?” They started with an idea of the state they wanted to reach and then worked backward. In 2013, the company launched a project, dubbed Missouri, to link the stealthy F-22 and F-35 combat jets. The Air Force has announced that they are to test a similar link next month, but the Air Force is establishing more complete linkages, including new forms of secure radio linkagages using software defined radio, and also including other assets such as Valkyrie drones. In 2015, they launched Project Iguana, extending the datalinks to the high-flying U-2 spy plane, fourth-generation combat aircraft such as the F-16, and satellites. In February 2018, they conducted an experiment under DARPA's SoSITE program that added other aircraft and a ground station. In April, their RIOT experiment connectngi jets to ground vehicles. Experiment by experiment, Lockheed tried to “systematically work” to build the components of a larger network of networks, said Hammond. There are four experiments projects planned for next year: Mayhem, focusing on links for satellites; Edison, datalinks for the Navy; Brennan, aircraft and Army units; and Project CASTL, satellites and a “space tactical layer”. Ultimately, Lockheed wants all this to add up to a “virtualized cloud-based architecture.” Think of it like the branches of a tree. A handful of ships and planes might form one network. That will, in turn, connect to a larger network that would, in turn, would be connected to the larger JEDI cloud. “You end up with virtual private clouds on the edge with a computing architecture you could have on an aircraft, on a ship, or any of the deployed nodes,” said John Clark, Lockheed's vice president of intelligence-surveillance-reconnaissance and unmanned aerial systems. Most of the linked aircraft and ships in these experiments carry an Enterprise Mission Computer 2.0 — dubbed “Einstein box” after its abbreviation, EMC2 — that translates each platform's data into a shared protocol that can go out to the larger wireless network. Lockheed officials hope that bringing all these pieces together will enable a new sort of operating system for warfare. They showed journalists a new experimental battle management display to illustrate the concept. The system presents the operator with a list of effects, from devastating explosions to a quiet disabling of some enemy system; a list of available assets, including planes or drones; a map of targets; and recommendations for the best way to deliver effects to targets. As circumstances change — fuel gets low, ammunition is depleted, targets are destroyed, new enemy forces arrive, etc. — the system can send out alerts that a new plan is needed — or automatically update the plan with new instructions for pilots and drone operators. It all depends on how high the operator wants to set the autonomy. That vision is very different from the way mission tasking works today. Preston Dunlap, the chief architect of the Air Force, said at the Defense One Outlook 2020 conference, “Right now, our commanders are very limited in who they can assign to do certain” things. “More often than not, you have to assign someone because they happen to be in front of a specific place in front of a specific computer,” he said. Of course, realtime data sharing across platforms isn't a simple or clear-cut affair, even after successful experimentation. The years-long problems with Lockheed's Autonomic Logistics Information System, or ALIS, for the F-35 show how hard it can be simply to share data between operators and just one platform. The challenges of sharing data between multiple platforms, in the middle of battle in a highly contested airspace, are far larger. But commanders say they must try. “In terms of where our adversaries are,” Kumashiro said, U.S. forces have “a need to have this joint all-domain command-and-control system.” https://www.defenseone.com/technology/2019/11/how-lockheed-martin-trying-link-everything-battlefield/161355
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15 juin 2021 | International, Aérospatial
Airbus Helicopters anticipe des commandes sur le segment militaire
DÉFENSE Airbus Helicopters anticipe des commandes sur le segment militaire Avec les conséquences de la crise sanitaire les commandes militaires ont pallié l'effondrement des commandes civiles. En avril, le gouvernement français a notifié́ à Airbus Helicopters une commande anticipée de huit hélicoptères lourds, de type Caracal pour 300 millions d'euros. Il a également accéléré le développement et l'achat de drones aériens pour la Marine nationale. Mais les négociations principales sont autour du H160. L'appareil a vocation à remplacer une demi-douzaine de modèles anciens utilisés par les trois armées. Déjà certifié par l'Agence européenne de sécurité aérienne, le H160 attend sa certification américaine pour débuter les livraisons à ses clients. Pour les armées françaises, Airbus évoque désormais une conclusion possible « avant la fin 2021 » en vue de premières livraisons en 2026. « Comme les versions militaires seront livrées après nos modèles civils, elles bénéficieront du rodage et de toutes les opérations de dérisquage menées pour les versions civiles », explique Matthieu Louvot, Executive Vice-President Programs chez Airbus Helicopters en charge des programmes militaires. Au total, 169 appareils dont 80 pour l'armée de Terre, 40 pour l'armée de l'Air et de l'Espace, et 49 pour la Marine nationale doivent être livrés. La Marine nationale attend d'ailleurs la livraison d'un premier H160 civil en mai 2022. En dehors de la configuration civile de base, celui-ci disposera d'une boule Euroflir 410, un treuil, une capacité corde lisse, un bac d'égouttement, un interrogateur AIS, une « capacité jumelles de vision nocturnes », un goniomètre et un aménagement intérieur pour prendre en compte des patients. Le contrat final pour dix H160 au profit de la Gendarmerie nationale est toujours en négociation, et ne devrait pas se nouer avant la fin de l'année. Les Echos et Air & Cosmos, 15 juin