Rohde and Schwarz selected for Royal Navy’s Type 26 Batch 2

Sur le même sujet

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  28 octobre 2024 | International, Aérospatial

  Air Force open to greater B-21 stealth bomber role in strategy revamp

  The B-21 Raider has so far avoided ballooning costs, said Air Force Chief of Staff Gen. David Allvin.

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  26 septembre 2019 | International, Aérospatial, Naval, Terrestre

  Faulty $5 Parts Cause 18-Month, $1 Billion Delay to Navy, Air Force Nuclear Upgrades

  Defects found in a $5 electrical component will delay the Navy and Air Force nuclear warhead refurbishment program by 18 months and cost more than $1 billion to fix, a National Nuclear Security Administration official said during a congressional hearing Wednesday. The faulty components are small commercially available capacitors that were to be used in upgrades to the Navy's W88 nuclear warheads. These weapons are deployed on the Trident II D5 submarine-launched ballistic missile systems. Similar capacitors are needed to upgrade the Air Force's B61-12 gravity bomb, Charles Verdon, deputy administrator for defense programs at the National Nuclear Security Administration, told members of the House Armed Services subcommittee on strategic forces during the unclassified portion of Wednesday's hearing. When engineers evaluated available parts, they ran tests to determine if the off-the-shelf capacitors were compatible with the systems due for upgrades, Verdon said. Initial results suggested the components would work in the short-term. “Early tests on the capacitors now in question and subsequent tests including component, major assembly and full-up integrated system flight tests demonstrated that these components meet requirement today. Industry best practices were used to stress the components beyond their design planned usage as a way to establish confidence that they will continue to work over the necessary lifetime of the warhead,” Verdon said. “During stress testing, a few of these commercially available capacitors did not meet the reliability requirements.” The problem is, these parts used in the warhead upgrades must survive for decades, up to 30 years after production, Verdon said. However, the quality of each capacitor production lot varied, which led to the stress testing failure. Instead of using the capacitors and risking readiness in the future, Verdon said his agency decided to delay the upgrade work, initially scheduled to begin in December. Replacement capacitors are being produced but will cost about $75 per unit, compared with the $5 per unit cost of the off-the-shelf capacitors that failed stress testing. “The use of commercial-off-the-shelf electric components needs to be improved to reduce future COTS-related risk,” Verdon said. The Navy is working with U.S. Strategic Command to understand how the 18-month delay will affect near-term deployments, Vice Adm. Johnny Wolfe, the director of strategic systems programs for the Navy, told the panel. “Currently, today, based on what we're doing with STRATCOM, we will meet the requirements as we move forward,” Wolfe said. The Navy and STRATCOM are developing a mitigation plan which includes is reevaluating how to turn around the submarine-based nuclear missile stockpile and how to schedule warheads for upgrades in the future, Wolfe said. More details on the Navy's plan to be discussed in a classified hearing. “If you look at the age of these systems and the technology we're using, these are tough, tough issues to solve, and it's critical technology that we're learning as we modernize these,” Wolfe said. Rep. Jim Cooper (D-Tenn.), chair of the strategic forces subcommittee, said he held the hearing because he wanted more information on what NNSA was doing to avoid more delays. He called the recapitalization “both necessary and hugely expensive” in his written opening statement. “Maintaining Congress and the public's confidence in these programs, and their effective execution, is imperative,” he wrote. https://news.usni.org/2019/09/25/faulty-5-parts-cause-18-month-1-billion-delay-to-navy-air-force-nuclear-upgrades

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  4 décembre 2020 | International, Terrestre

  Army taps industry for Gray Eagle payloads for joint ops against high-end threats

  By: Jen Judson WASHINGTON — The Army wants its Joint All Domain Operations (JADO) Gray Eagles to have synthetic aperture radars, moving target indicators, electronic intelligence and communications intelligence capability as well as air-launched effects and radar warning receivers, according to a new market survey. Now, the Army wants help from industry with those payloads for its Gray Eagle unmanned aircraft systems. Specifically, the service is looking for systems that are capable of helping with joint operations across all warfighting domains against high-end threats from adversaries such as China and Russia, according to a solicitation published Dec. 2 to a government contracting website. The service's Aerial Enhanced Radar, Optics and Sensors (AEROS) product manager wants industry to “identify potential existing sources capable of providing Aerial Intelligence, Surveillance and Reconnaissance (AISR) payloads for the MQ-1C Gray Eagle Unmanned Aircraft System platform that meet the JADO environment,” the solicitation posted to Beta.Sam.Gov states. These Gray Eagles payloads must be capable of increased ranges and resolutions “to support target location and Long-Range Precision Fires (LRPF) without the use of traditional line of site visual equipment to include Electro Optical, Infrared (EO/IR) and Full Motion Video (FMV) required for today's Counter Insurgency (COIN) mission,” the request for information stresses. Traditional COIN payloads won't hold up against peer and near-peer adversaries, the Army noted, as they will “employ anti-access, area denial strategies, posing a significant challenge to the current AISR fleet,” the solicitation states. Gray Eagles must survive against an “Integrated Air Defense System (IADS)-rich environment,” the request notes. This means the Gray Eagle would fly “racetrack patterns tangential to the IADS threat at 80 km distance” and would be capable of deploying Air-Launched Effects (ALE) forward into enemy territory to detect, identify and locate targets and take out or disrupt threats, according to the request. The Gray Eagle would also have payloads that could detect IADS threats, locate them and transfer the information to other sensor systems capable of recognizing targets and coordinating long-range fires, the solicitation describes. The Army is conducting the survey ahead of a Gray Eagle sensor payload JADO demonstration that could potentially take place in fiscal 2022 where systems will be “quantitatively compared” to find the highest performing and best value payloads based on technology readiness and production cost, the request lays out. The solicitation for more advanced payloads for Gray Eagle comes at a time when the Army is trying to design a complex architecture of helicopters and unmanned aircraft systems that would be part of tight-knit kill chain to include space and ground assets underpinned by an advanced network. The Army experimented with the kill chain to include air assets at Project Convergence at Yuma Proving Ground, Arizona, over the summer. The effort brings together future weapons and capabilities envisioned for a 2030s battlefield against near-peer adversaries such as Russia and China. It includes using a machine learning and artificial intelligence-enabled battle management system that is in development. Gray Eagle represented a Future Attack Reconnaissance Aircraft (FARA) surrogate. During the first mission thread at Project Convergence, which focused on the penetration phase laid out in the Army's Multidomain Operations warfighting concept, Gray Eagles and ALE partnered with space-based assets, APNT, and LRPF capabilities to locate, then degrade and destroy enemy assets modeled after the Russian Pantsir air defense systems and other weapons. The ALE pushed ingested data forward through the network to get it to the right shooters, whether that would be an Extended Range Cannon Artillery (ERCA) system on the ground or a Gray Eagle or another ALE. The Army was able to extend the ALE capability out to almost 62 kilometers, which would provide deep standoff for manned aircraft like FARA. The ALEs performed both the reconnaissance, surveillance and targeting acquisition mission and worked as a mesh network to extend the battlefield. Two ALEs were truck launched and four were air launched. Also during the final shot of the entire campaign at Project Convergence, a soldier on the ground took control of a LRPF munition surrogate (a Hellfire missile in this case) on a Gray Eagle and fired on the target. The Gray Eagle at Convergence was able to route around and avoid threat weapon systems and also fired a live Dynetics-made GBU-69 small glide munition. Previewing the future, the Army also used an open system architecture that was flexible enough for payloads and capabilities to be swapped in out of its Gray Eagles without having to rely on the original equipment manufacturer to do it. https://www.defensenews.com/land/2020/12/02/army-taps-industry-for-gray-eagle-payloads-for-joint-ops-against-high-end-threats/