February 26, 2024 | International, Land
Navy introduces new robotics warfare rating
The pool of sailors initially tapped for the Navy's new robotics rating will be "small and selective," according to the sea service.
January 14, 2021 | International, Naval
Naval Group prints first propeller for powering French warship
PARIS — France's Andromède mine-hunting ship is now being propelled by a 3D-printed propeller designed and manufactured by Naval Group, the company announced on Wednesday.
Emmanuel Chol, director of Naval Group's Nantes-Indret site where the propeller was made, said, “It is the largest metal 3D-printed thruster ever to have been manufactured and the first propeller resulting from this technology, embarked on board a military ship and manufactured for use beyond just sea trials.”
Weighing 1 metric ton, the propeller is made of five 200 kg (441 pounds) blades which were manufactured using a wire arc additive manufacturing (WAAM) procedure, less well known than other metal 3D printing techniques but better suited for large-scale applications. It works by melting metal wire heated by an electric arc. The process is controlled by a robotic arm.
The French subsidiary of the Japanese group Yaskawa provided the robots and manufacturing tools for this project.
Naval Group worked with Bureau Veritas to guarantee that the testing, inspection and certification requirements (like corrosion, fatigue, shock resistance) were met so that the Fleet Support Services organization and the DGA French procurement agency could authorize the trial of the blades on a military ship.
The propeller was transferred from the manufacturing site to Brest in October 2020 where it was mounted on the propeller shaft of the Andromède. The ship is one of France's 10 Tripartite mine hunters built in the 1980s, eight of which – including the Andromède – will not be retired for another decade.
Sea trials in December were successful, so now the mine-hunter can return to normal operations, equipped with its printed propeller.
Eric Balufin, director of Naval Group's site in Brest says “the assembly of this 3D-printed propeller shows great promise for the future. This new technology will enable us to considerably reduce technical constraints, and therefore allow for new manufacturing solutions for complex geometrical shapes which cannot be produced through conventional processes.”
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September 25, 2023 | International, Land
GOP, Dems clash on multiyear munitions buys as shutdown looms
A niche appropriations debate on multiyear munitions buys has ballooned into one of the numerous partisan standoffs over the defense spending bill.
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August 12, 2020 | International, C4ISR, Security
Pentagon requests 30-day extension for re-awarding JEDI
Andrew Eversden WASHINGTON — The U.S. Department of Defense has requested 30 extra days to review vendor proposals as it prepares to make another award decision for its massive enterprise cloud contract, according to a Monday night court filing. The DoD is currently reviewing new revised proposals for its Joint Enterprise Defense Infrastructure contract, which it awarded to Microsoft over Amazon Web Services in October last year. In the filing, the DoD said that it “recently identified the need to reopen limited discussions related to certain aspects of the offerors' pricing proposals.” The request, made in the Court of Federal Claims, is yet another delay for the controversial JEDI cloud. The department was supposed to re-award the contract by Aug. 17 after receiving a 120-day stay to take corrective action on the contract. It's now asking to delay that decision to Sept. 16. “During the remand, DoD has identified areas of concern with respect to the revised proposals received from both offerors, resulting in multiple solicitation amendments, rounds of proposal revisions, and exchanges with the offerors,” the court filing said. AWS, which filed the protest late last year in the Court of Federal Claims after losing the contract, argues that the department made several technical errors while evaluating its proposal and also accuses President Donald Trump of political interference in the contract. AWS does not oppose the Pentagon's new motion, the court document said. In late July, DoD CIO Dana Deasy told reporters that the DoD would “probably sometimes towards the very end of August, barring any last minute, unforeseen additional issues that are raised.” The court filing says that the department “anticipates” that the re-evaluation process will wrap up in early September. The JEDI cloud has been delayed continuously throughout the entirety of the procurement process. Last year, the initial award decision was delayed for months due to a pre-award protest by Oracle. Earlier this year work on JEDI was further delayed when the court placed a temporary restraining order on any work on the JEDI cloud, finding that AWS was “likely to succeed” in proving DoD erred in the evaluation process. https://www.c4isrnet.com/battlefield-tech/it-networks/2020/08/11/pentagon-requests-30-day-extension-for-re-awarding-jedi/