18 octobre 2021 | International, Terrestre
GM Defense shows off updated Infantry Squad Vehicle
GM Defense's ISV is electric and can power the vehicle, as well as drones and sensors.
14 janvier 2019 | International, Terrestre
Army looks to give its old combat boot the boot
By JOHN VANDIVER | STARS AND STRIPES
The Army is testing new combat boots at select boot camps in a push to better compete with the more comfortable commercial brands favored by many soldiers for their lightness.
The U.S. Army Research, Development and Engineering Command Soldier Center in Natick, Mass., has developed prototypes that soldiers will wear at three different basic training and active duty sites during the next four months.
“Soldiers live in their boots and many will tell you that there is no piece of equipment more important to their lethality and readiness,” said Al Adams, a team leader at the Army's soldier center, in a statement. “A bad pair of boots will ruin a Soldier's day and possibly result in injuries, so we really believe that each of these prototype boots have the potential to improve the lives of Soldiers.”
The prototypes, which utilize more flexible types of leather and lighter outsoles, will be fielded to 800 new recruits at Fort Leonard Wood, Mo., and Fort Jackson, S.C. Another 900 pairs will go to infantry soldiers at Fort Bliss, Texas.
The Army's soldier center team will custom-fit each pair and collect solider surveys on boot performance in the spring.
The prototypes are up to 1.5 pounds lighter per pair than those issued today.
“In terms of energy expenditure or calories burned, 1-pound of weight at the feet is equivalent to 4-pounds in your rucksack,” Adams said in a statement.
The prototypes in their current design would be the first significant change to the basic Army combat boot in years.
While there have been improvements to the Army's special footwear for jungle, mountain and cold weather locations, there is room for improvement in general-purpose boots issued to new recruits, the Army said.
“Most components of these combat boots have not been updated in almost 30 years,” Army footwear engineer Anita Perkins said in a statement.
Army surveys have found that satisfaction with the Army combat boot is lower than with commercial varieties. In a poll of 14,000 soldiers, the Army said it found that nearly 50 percent choose comfortable sneaker-like commercial boots over Army-issued ones.
The problem confronting Army officials is that commercial comfort can come with trade-offs. The Army said its ultimate aim is to bridge the comfort gap while maintaining durability and protection.
vandiver.john@stripes.com
Twitter: @john_vandiver
https://www.stripes.com/news/army-looks-to-give-its-old-combat-boot-the-boot-1.563985
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26 mars 2020 | International, Aérospatial
Lockheed and Bell will compete head-to-head to build US Army’s future attack recon aircraft
By: Jen Judson WASHINGTON — Sikorsky, a Lockheed Martin-owned company, and Bell have been selected to build and fly Future Attack Reconnaissance Aircraft (FARA) prototypes for the U.S. Army in a head-to-head competition, according to a March 25 Army statement. The Army is planning to procure both a FARA and Future Long-Range Assault Aircraft (FLRAA) that will slowly replace the current fleet of Sikorsky-manufactured UH-60 Black Hawks utility helicopters and Boeing-made AH-64 Apache attack helicopters. The service plans to initially field both in the 2030s. FARA will fill a critical capability gap currently being filled by AH-64E Apache attack helicopters teamed with Shadow unmanned aircraft following the retirement of the OH-58D Kiowa Warrior helicopters. The service has tried and failed three times to fill the gap with an aircraft. The Army had selected five teams to provide FARA designs last spring: AVX Aircraft Co. partnered with L-3 Communications Integrated Systems, Bell, Boeing, Karem Aircraft and Sikorsky. The Army laid out a handful of mandatory requirements that the vendors had to meet and also a list of desired requirements for initial designs, Col. Craig Alia, the Future Vertical Lift Cross Functional Team chief of staff, told reporters last year. The service also looked at the vendors' execution plans and evaluated timing as well as funding profile requirements. “The ones that were selected were clearly meeting the mandatory requirements and were in the acceptable risk level of the execution plan and the desired requirements," Dan Bailey, who is the FARA competitive prototype program manager, added. The prototype program falls under the purview of the Army Combat Capabilities Development Command Aviation and Missile Center's Aviation Development Directorate. Lockheed unveiled its design — Raider X — at the Association of the U.S. Army's annual conference in October 2019. The company's design uses its Raider X2 coaxial technology with a focus on how it will perform “at the X.” “One thing that always comes out is the importance of this aircraft at the X,” Tim Malia, Sikorsky's director of future vertical lift light, told Defense News in an interview last fall. “The ‘X' is defined by the Army as the terminal area where they actually have to go do the work, do the reconnaissance, do the attack mission. The operation at the X is really critical for this program and for this platform.” That's where Raider X comes in. It's a slightly larger version of the Raider coaxial helicopter that Lockheed has been flying for several years at its West Palm Beach, Florida, flight test center. “Through our mature S-97 RAIDER technology demonstrator, we continue to optimize our FARA solution, which will provide the Army with an integrated weapon system that combines speed, range, maneuverability, survivability and operational flexibility," Andy Adams, Sikorsky's vice president of future vertical lift, said in a March 25 statement. This approach is driving down risk and will result in an aircraft solution that is capable of executing the Army's joint all-domain operations." Bell revealed its design — the Bell 360 Invictus — which is based on 525 technology. But its design features several key differences, including its size in order to adhere to the Army requirement of 40-foot in diameter rotor blades. The design includes a single main rotor helicopter in a four-blade configuration, a low-drag tandem cockpit fuselage and transportability in a C-17. “Bell is proud to continue work on the Bell 360 Invictus as part of the Army's Future Attack Reconnaissance Aircraft Competitive Prototype competition,” Keith Flail, Bell's vice president of advanced vertical lift systems, told Defense News on March 25. “We have made significant investment and begun manufacturing in order to preserve the Army's schedule for FARA CP and we are thrilled to continue our work on the Invictus,” he said. “Bell's approach from the beginning has been tailored to deliver the advanced performance required without excessive complexity in order to get critical capability in the hands of the warfighter quickly and affordably.” The AVX and L3 team was the earliest to unveil its design for the FARA competition at the Army Aviation Association of America's annual summit in Nashville, Tennessee, in April 2019. The design uses AVX's compound coaxial and ducted fans technology. The companies said its single-engine design meets 100 percent of the Army's mandatory requirements and 70 percent of its desired attributes. Karem announced it would team with Northrop and Raytheon and came out with its design at AUSA — its AR-40 — with a single main rotor, tilting compound wings and a rotating tail rotor. Boeing was the last to reveal its design, coming out with it March 3. The company's clean-sheet design featured a hingeless, six-bladed, high-solidity main rotor; a four-bladed conventional tail rotor; and a propeller on the back. The prototype aircraft are expected to start flying in the fourth quarter of fiscal 2022, and the flight test is expected to run through 2023. The engineering and manufacturing development phase is expect to begin in FY24. https://www.defensenews.com/smr/army-modernization/2020/03/25/lockheed-and-bell-will-compete-head-to-head-to-build-us-armys-future-attack-recon-aircraft
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1 août 2023 | International, Aérospatial, Sécurité, Autre défense
Adaptive engine work feeds sixth-gen fighter design, says US Air Force
The Air Force is adapting AETP features into the future Next Generation Air Dominance platform’s engines.