November 27, 2023 | International, Aerospace
Ice Ice Baby: Raytheon uses diamonds to keep radars cool
"If we can relax the heat problem," a DARPA program manager said, "we can crank up the amplifier and increase the range of radar."
October 15, 2019 | International, Land
US Army nears competition that could lead to robots directly engaging the enemy
WASHINGTON — The U.S. Army is close to triggering a competition for both a light and medium robotic combat vehicle by releasing a request for product proposals before the Thanksgiving holiday, according to Brig. Gen. Ross Coffman, the head of combat vehicle modernization for the service.
The plan is to award one contract to one company to build a light variant, and repeat the process for a medium-sized robotic combat vehicle, or RCV, in March 2020. Then each company will deliver four prototypes for evaluation and testing in 12 months from contract award, Coffman told Defense News in a recent interview..
The Army anticipates a large pool of applicants based on a recent evaluation of eight different vehicles on a course at Texas A&M University's RELLIS campus, and because the response to a request for whitepapers for each variant was fruitful.
The caliber of vehicles at the physical demonstration was higher than expected. Companies “really took it seriously” and brought vehicles that weren't just “modified, off-the-shelf” versions, Coffman said. Instead, the robots were “closer to purpose-built than we ever imagined,” he added.
The Army is focused — across all three weight classes of robotic vehicle under pursuit — on a chassis rather than a vehicle as a whole. The idea is to integrate mission systems onto a common chassis for each weight class.
On the heavyweight side, the Army completed a major experiment last month at Camp Grayling, Michigan, where four robotic versions of the M113 armored personnel carrier was evaluated for ground robotic capabilities. At the event, which will be followed by rigorous testing and evaluation at Aberdeen Proving Ground, Maryland, four robotic combat vehicles moved across the battlefield in a wedge formation. Soldiers controlled the platforms to keep them out of harm's way.
“They came online, identified an enemy and then the humans called for fire based on the sensors on this robot,” Coffman said. “And then, once the artillery went in, the robots continued to traverse the terrain and engaged with direct fire against an enemy, destroying that enemy, all while the humans were in sanctuary controlling the battlefield.”
The exercise demonstrated to Coffman that heavy RCVs can reduce the risk to soldiers on the battlefield.
Once Army Test and Evaluation Command can put each vehicle through its paces, the platforms will head to Fort Carson, Colorado, in March 2020. “We're going to put these in the hands of soldiers and they're going to — they're going to get them dirty, they're going to execute tactical operations and they are going to fight against a live [opposing force],” Coffman said. “They are going to take them to the gunnery, and we're going to see all of the capabilities they can do.”
After that phase, the Army plans to evaluate four M113s as well as four medium and four light RCVs that will form a company and execute tactical formations as the Army builds up its capability, according to Coffman.
In 2023, the Army will evaluate purpose-built heavy variants with the medium and light RCVs also in a company formation, Coffman added.
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November 28, 2018 | International, Aerospace, Naval, Land, C4ISR, Security
France: Comment l’armée se prépare aux batailles du futur
Nicolas Berrod Jambe bionique, casque de réalité virtuelle... Le premier salon de l'innovation de la Défense ouvre, ce samedi, au public. Pour avoir une idée de ce à quoi va ressembler le soldat du futur, il faut se rendre à... la Cité de la Mode et du Design ! C'est ici, dans l'Est parisien, que se tient le premier Salon de l'Innovation de la Défense, qui ouvre ses portes au public samedi. Dans les allées, on croise des militaires, industriels, scientifiques, venus présenter leurs propres projets -160 sont exposés. Le robot greffeur de peau permet, par exemple, de soigner un soldat brûlé, à proximité du champ de bataille, sans attendre trop longtemps. Le principe est simple : un bras robotisé prélève à un endroit sain un échantillon de peau, qui, une fois mélangé avec une encre spéciale, via une imprimante 3D, est greffé sur la partie blessée du corps. « On peut le faire en une seule fois et l'opération ne dure pas plus de quelques heures », assure Amélie Thépot, la présidente de la start-up LabSkin Creations, qui à conçu le projet avec les Hospices de Lyon. Une jambe bionique Pour les militaires plus gravement blessés, la société Proteor a imaginé une jambe bionique nouvelle génération, constituée d'un ensemble genou-cheville-pied contrôlé par un microprocesseur. Abel Aber, 32 ans et militaire de formation, a perdu sa jambe gauche dans un accident à l''ge de 17 ans. Depuis, ce grand gaillard utilise plusieurs prothèses dont celle-ci qui lui « apporte un nouveau confort de marche, même si ça reste évidemment contraignant ». L'outil, développé avec le soutien de la Direction générale de l'armement (DGA) et disponible d'ici 2021, a ses limites : impossible pour le moment de monter un escalier, par exemple. « Et pour faire du sport, on a besoin de prothèses plus spécifiques », glisse cet amateur de boxe thaï. Un casque de réalité virtuelle Autre innovation qui attire l'attention : la cape d'invisibilité, dite Caméléon. Imaginé pour camoufler un véhicule terrestre, ce système optique fonctionne gr'ce à une caméra haute définition qui capte l'environnement, et le reproduit ensuite sur la surface du blindé. « Les soldats peuvent facilement changer de treillis mais on ne peut pas repeindre un véhicule selon l'endroit où il se trouve », justifie Sébastien Fagour, ingénieur chez Nexter Systems. Article complet: http://www.leparisien.fr/high-tech/comment-l-armee-se-prepare-aux-batailles-du-futur-23-11-2018-7951917.php
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November 16, 2023 | International, Naval
RTX's Pratt & Whitney receives sustainment contract valued up to $870 million for TF33 engines powering B-52s, E-3s
This agreement is a culmination of the Defense Logistics Agency's decades-long partnership with the 448th Supply Chain Management Wing, Tinker Air Force Base, Okla., and Pratt & Whitney to establish...