6 juin 2024 | International, Terrestre
US test-fires two unarmed Minuteman III nuclear weapons
The reentry vehicle of each missile traveled approximately 4,200 miles to the Ronald Reagan Ballistic Missile Defense Test Site on the Kwajalein Atoll.
22 mai 2020 | International, Naval
Northrop Grumman Builds Very Lightweight Torpedo for US Navy
By Fernando Catta-Preta May 21, 2020 - Northrop Grumman has successfully manufactured and tested the first industry-built Very Lightweight Torpedo (VLWT) for the U.S. Navy.
The prototype torpedo is based on the Pennsylvania State University Applied Research Laboratory's (PSU-ARL) design that was distributed to defense industrial manufacturers in 2016. Northrop Grumman, which independently funded the research and development, will offer the design-for-affordability improvements to this VLWT as Northrop Grumman's response for the Navy's Compact Rapid Attack Weapon program.
Northrop Grumman‘s torpedo design and production legacy reaches back over 80 years to World War II through its Westinghouse acquisition. In 1943, Westinghouse won the Navy contract to reverse engineer a captured German electric torpedo and in 12 months began producing the MK18 electric torpedo, which turned the tide of the undersea warfare in the Pacific. Northrop Grumman has been at the forefront of torpedo design and production ever since, to include the current MK48 Common Broadband Advanced Sonar System (CBASS) heavyweight torpedo and MK50 Lightweight Torpedo.
Today, Northrop Grumman is the only company in full rate production of MK54 and MK48 torpedo nose arrays and has delivered over 600 MK54 arrays and over 70 MK48 arrays to the U.S. Navy.
Applying its engineering and manufacturing expertise, Northrop Grumman improved upon the VLWT baseline design to replace high-cost components and drive overall affordability, reproducibility and reliability. Those altered sections were built and tested using PSU-ARL's own test equipment for confidence.
“The successful testing of the torpedo nose on the first try is a testament to Northrop Grumman's design-for-affordability approach, which will significantly reduce cost without sacrificing operational performance,” said David Portner, lead torpedo program manager, undersea systems, Northrop Grumman.
Northrop Grumman assembled the prototype VLWT using a Stored Chemical Energy Propulsion System (SCEPS) manufactured by teammate Barber-Nichols, Inc., (BNI) of Denver, Colorado.
“The nation needs advanced undersea warfare capabilities now more than ever," said Alan Lytle, vice president, undersea systems, Northrop Grumman. “We are ready to support fielding the VLWT which will increase subsea lethality and enable innovative concepts of operations for multiple warfighting platforms.”
Northrop Grumman's manufacturing plan would span the country by building components in California, Utah, Minnesota, Colorado, West Virginia and Maryland.
View source version on Northrop Grumman: https://news.northropgrumman.com/news/features/northrop-grumman-builds-very-lightweight-torpedo-for-us-navy
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21 août 2018 | International, C4ISR
Army Takes Its Radio Network Commercial
By SYDNEY J. FREEDBERG JR. ARLINGTON: As the Army reboots its battlefield radio networks, it's jettisoning exquisitely custom-made military waveforms and moving to simpler — but more capable — commercial radio protocols. The move is underway on three fronts, Maj. Gen. David Bassett, the two-star Program Executive Officer for command, control & communications – Tactical (PEO C3T), says: The Army's already moving its backpack-mounted tactical radio, the Manpack, from the milspec Soldier Radio Waveform (SRW) to the commercial TSM waveform, with both Harris and Rockwell Collins now integrating TSM in their radios. (Special operators already use TSM). They're currently selecting vendors to do the same for their handheld Leader Radio, mainly used by junior and non-commissioned officers on foot. Bassett's staff told me to expect an award sometime in September. They're exploring alternatives to the Wideband Networking Waveform (WNW) as the “backbone” of the Army's tactical network. TSM is one candidate but there are others, including some still in development, Bassett told me in an interview here. It's all part of a wider effort to rebuild the Army's command, control, and communications (C3) networks for war against a high-tech great power. Speaking at a cyber and networks conference held here Aug. 2 by the Association of the US Army, Bassett said the Army will conduct operational testing of new command systems — including two lower-complexity alternatives to complement the current mainstay, JBC-P — and start fielding them, he said, “this fall.” Why the rush? Army systems like WIN-T(Warfighter Information Network – Tactical) worked adequately as long as we had big bases in Afghanistan and Iraq, with plenty of time to set up extensive infrastructure and minimal enemy interference. China and Russia, however, have cutting-edge cyber and electronic warfare attackers to hack the network software, powerful electronic warfare units to jam its transmissions, and long-range precision guided missiles that can easily target large, stationary command posts. So last year Army Chief of Staff Mark Milley ordered a crash program of improvements, cancelling planned WIN-T upgrades in favor of new technologies, many from the thriving commercial IT sector. “It was kind of a shock to the system,” the Army's Chief Information Officer, Lt. Gen. Bruce Crawford, told the AUSA conference. “The Army came forward and said there were some programs it wanted to halt and some things it fundamentally wanted to do differently.” Appealing To Industry Gen. Milley's announcement met with initial resistance, including on Capitol Hill, but inspired intense interest from industry. Maj. Gen. Bassett himself had come to the AUSA conference from a meeting in Raleigh, one corner of North Carolina's thriving“research triangle,” where he had briefed 400 representatives from some 126 companies. “Down in Raleigh, the challenge that I gave them was learn how you fit into our network design. Propose solutions that will fit into our network,” Bassett said. “We want them to become part of that infrastructure rather than competing with it.” https://breakingdefense.com/2018/08/army-takes-its-radio-network-commercial-can-you-hear-me-now
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15 octobre 2024 | International, Terrestre
Rheinmetall, Leonardo JV sows seed for EU defence consolidation