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November 6, 2023 | International, Land

Manufacturing woes could sink US sub fleet. Can 3D printing save it?

The U.S. Navy has commissioned a flurry of activities to mature metal additive manufacturing — and Danville, Virginia, is at the heart of that effort.

https://www.defensenews.com/industry/techwatch/2023/11/06/manufacturing-woes-could-sink-us-sub-fleet-can-3d-printing-save-it/

On the same subject

  • Understanding Warfighter Performance from the Inside Out

    January 23, 2019 | International, Land

    Understanding Warfighter Performance from the Inside Out

    Measuring Biological Aptitude (MBA) aims to identify, understand, and monitor in real time the biology that underlies success in specialized roles A new program out of DARPA's Biological Technologies Office could help the Department of Defense enhance and sustain military readiness both by revolutionizing how troops train, perform, and recover, and by mitigating shortages of highly qualified candidates for extremely specialized roles. The anticipated outputs of the Measuring Biological Aptitude (MBA) program are a set of biomarkers — measurable indicators of biological processes — that correspond to traits of highly effective performance in a given role, along with new tools to measure and report on those biomarkers in real time. This information will enable individual warfighters to understand and affect the underlying biological processes that govern their success. MBA technologies could improve training, team formation, mission performance, and post-mission recovery, yielding a better prepared, more effective, more resilient force. At its core, MBA seeks to shed light on the biological factors and processes that support peak performance in each of a set of military specializations. The research will work backwards from phenotypes — that is, how an individual's fixed genetic code expresses as externally observable cognitive, behavioral, or physical traits — and attempt to establish the biological mechanisms that translate underlying genetic makeup into phenotypic traits. At present, those mechanisms of translation — also known as expression circuits — are largely a mystery. MBA researchers will develop new assays and technologies to monitor and report on the biomarkers that reveal the activity of key expression circuits. “With existing technology scientists are able to read out genotype and measure and observe certain aspects of phenotype. Most of what happens in between is a black box,” said Eric Van Gieson, the MBA program manager. “DARPA believes that the information inside the box — these expression circuits — can be predictive of how an individual will respond to a given stimulus or scenario, and more importantly, we believe it will help inform the individual on how to improve their performance throughout their career.” Researchers supporting MBA will initially analyze samples and other data collected from high-performing troops across select military specializations to identify biological signatures of successful performance in each of those roles and determine how they can be measured. For instance, maintaining a lowered heart rate during combat is a valuable trait and easily measured with existing wearable technology. Adaptable problem solving, resilience, and cognitive flexibility are extremely valuable, but less easily measured. MBA analyses should reveal an array of such traits and the expression circuits responsible for them. If DARPA succeeds, the resulting MBA system could support military readiness in various ways. The first improvement relates to how the military initially evaluates recruits and subsequently develops candidates for specialized roles. Many of these roles currently suffer from shortages of qualified candidates, even as more pervasive use of complex technologies and an expanding set of mission profiles are increasing demand for uniquely skilled personnel. For at least the past 50 years, initial assessment of military service members has remained essentially unchanged, comprising a basic medical screening, a standardized physical readiness test, and a written test known as the Armed Services Vocational Aptitude Battery (ASVAB) for enlisted personnel. Scores on the ASVAB feed into the preliminary determination of an individual's qualification for certain military occupational specialties. As a service member's career advances, future placement into other roles does not follow a prescribed protocol and can be based in large part on subjective measures. Against this backdrop, MBA technology could increase the objectivity of the criteria used by military selection committees, remove biases, and raise the baseline of performance for incoming recruits. Additionally, by taking biology into account, the results from MBA measurements could reveal to individuals career options that might not be apparent based on commonly accepted, externally observable traits alone. The second improvement ties to training, both before and after an individual pursues a military career. MBA technology could allow a user to assess his or her personal potential for specialized roles and proactively nurture the traits that are characteristic of successful performers. “Genotypes are fixed, but phenotypes are not. Biology is fundamentally adaptable, and that is the key to enabling performance improvements,” Van Gieson said. “What we're planning to deliver with MBA is a set of continuously updated information that empowers individuals to track their progress throughout their careers and quickly identify what aspects of training and preparation are the most productive.” Third, during missions commanders could employ real-time reporting of changes in service members' biomarkers to inform how a military operation unfolds, adding a layer of biological awareness to provide a more complete assessment of the mission space. Commanders could shift resources or adjust strategies and tactics based on how squad members are performing. Following a mission, biomarker reporting could likewise guide recovery practices and indicate potential health issues. The overall MBA program will be informed by consultations with independent expert advisors in the ethical, legal, social, and regulatory aspects of the work, with particular emphases on privacy, data protection, and responsible utilization of data by individuals. MBA performer teams will be required to provide medical guidance as part of any human study through an embedded genetic counselor, sports therapist, or similar specialist. “Human beings are extremely complex, and although we expect to gain valuable new insights by measuring biology, we also understand that people are not locked into predetermined fates,” Van Gieson explained. “Any breakthroughs we achieve in the MBA program will necessarily be used to address shortages in critical roles by expanding opportunities, not limiting them. If we can provide people with information on their unique biology, and empower them to affect and measure gains in key traits, we'll have opened career pathways that they may not have previously considered.” DARPA will hold a Proposers Day on February 12, 2019, in Arlington, Virginia, to provide more information about MBA and answer questions from potential proposers. For details of the event, visit https://go.usa.gov/xEZeT. A forthcoming Broad Agency Announcement will include complete program objectives, schedules, and metrics. Team should have experience in human performance, phenotyping, multi-scale biology, physiology, biomarker detection and tracking, device development, and various other aspects that will be specified in the announcement. https://www.darpa.mil/news-events/2019-01-22a

  • Stealthy UAS Unveiled For USAF Target, Loyal Wingman Needs

    January 31, 2020 | International, Aerospace

    Stealthy UAS Unveiled For USAF Target, Loyal Wingman Needs

    Steve Trimble A small start-up company in California has unveiled a new proposal for a stealthy unmanned aircraft system (UAS) to offer the U.S. Air Force as a “fifth-generation” target drone or a low-cost attritable aircraft. Tehachapi, California-based Sierra Technical Services, a company founded by previously retired Lockheed Martin Skunk Works engineers, unveiled the first photos of the completed Fifth Generation Aerial Target (5GAT) prototype after completing engine tests on the ground. A first flight of the 5GAT is scheduled in early 2020. The name of the aircraft is derived from its origins as a prototype funded by the Defense Department's Director of Operational Test and Evaluation (DOT&E), says Roger Hayes, president and CEO of Sierra Technical Services. Several years ago, DOT&E recognized an emerging gap for a new target drone that could fly as a surrogate for fifth-generation fighters emerging in Russia and China such as the Sukhoi Su-57 and AVIC Chengdu J-20. In 2017, DOT&E awarded Sierra Technical Services a $15.9 million contract to develop the 5GAT prototype, Hayes said. The pace of assembly has been dictated by the availability of parts cannibalized from other military aircraft, such as the engines and metallic components from the Northrop T-38 trainer and F-5 fighter, as well as aileron actuators from the Boeing F/A-18, Hayes said. Sierra Technical Services supplemented its revenue as assembly continued by working on other programs, including supplying components for the Kratos XQ-58A Valkyrie. As development continued, the Air Force started to develop interest in a fifth-generation target. The service has awarded Lockheed Martin a contract to develop the AIM-260 Joint Advanced Tactical Missile, which is being designed to counter the PL-15 missile fielded on China's J-20 fighter. The Air Force needs to test the AIM-260 and other missiles against a representative threat. Last May, the Air Force released a request for information for the Next Generation Aerial Target, which included a version that can replicate fifth-generation fighter attributes, such as a stealthy airframe with canted tails and serpentine inlet ducts. The Air Force also is developing a concept to pair manned fighters such as the F-22 and F-35 with an unmanned partner, known sometimes as a Loyal Wingman. The Air Force Research Laboratory (AFRL) funded Kratos' XQ-58A, which completed a first flight in March. AFRL also plans to demonstrate a UAS controlled by a “software brain” using artificial intelligence. This Skyborg program is sometimes considered a follow-on for the XQ-58A program, but Hayes said Sierra Technical Services could offer the 5GAT for the Skyborg contract. https://aviationweek.com/defense-space/stealthy-uas-unveiled-usaf-target-loyal-wingman-needs

  • Opinion: The Innovation That Will Ensure U.S. Security In Space

    February 2, 2021 | International, Aerospace

    Opinion: The Innovation That Will Ensure U.S. Security In Space

    Charles Beames During the Cold War, it was not the U.S.' superior weapons or soldiers that ultimately led to the Soviet Union's capitulation. Historians record that the relative economic might of the U.S. ultimately brought the Cold War to a peaceful and conclusive end. Three decades later, the U.S. again finds itself at the dawn of what many have dubbed the “Second Space Race,” for which the U.S. ought to remain mindful of this lesson, lest it be used against us. The West is once again threatened by a hegemonic national security rival. This time, America's archnemesis is characterized by planning for a long contest that will feature fast-forward economics, global diplomacy, military muscle and information manipulation: China, it appears, is preparing to use its economic power to win. While maintaining its deep belief in Marx's communist vision, the Chinese one-party government has fashioned a national economy that learned from the Soviet Union's mistakes. Through friendly engagement with Western economies, China strengthens its own economy and weakens the West's, nudging the world toward the worldview of the Chinese Communist Party. What then, are the best avenues for the U.S. to win this new near-peer space competition? They are the same ones that delivered victory in the last century: free markets, real economic growth and the productivity that often follows. This time, however, we must keep in mind that our rival is a keen student that has learned from our earlier successes—and Soviet failures. The American response must not repeat the Cold War strategy of outspending our rival in government programs. Instead, the U.S. long game must put the commercial industry first: deliberately buy goods and services from our commercial domestic market, only providing government solutions when the commercial market cannot meet requirements. Unlike other military services, there are no real “weapons” in space. Much of what the government is developing for civil and national security space needs also exists as products or services in the commercial market. By encouraging the commercial industry to grow and not competing against it, the U.S. will secure a long-term strategy leading to unrivaled space leadership. The U.S. economy has generated growth and prosperity unmatched in human history, with billions of dollars being invested every year into profitable commercial space companies. To outpace China militarily and economically, the new administration must double down on space privatization projects like NASA's Commercial Crew and Commercial Resupply Programs started under the Obama administration. The Trump administration correctly reprioritized the importance of space for national security, but it directed too much government spending to legacy space projects and fell short in encouraging the next generation of commercial space companies. An American “commercial first” policy for space technologies can solve government needs at the federal and state levels, which account for about half of commercial space company revenue. By prioritizing the highly competitive commercial sector, the government will bolster U.S. competitiveness without illegally subsidizing it. More important, it would reinforce the American values of free markets and open competition. As the new administration settles in, national security political insiders are already hedging their bets on who and what will be the winners and losers of the new political cycle. This is especially true for the space sector, not only because it was an area of significant emphasis during the last administration but also because there continues to be significant private investment and anticipated growth in the area. The unrelenting march of the knowledge economy and remarkable utility of the commercial space industry is limited only to our imaginations. The new U.S. Space Force and other civil space agencies will be better positioned if they leverage the burgeoning industry and do not overshadow it with government alternatives. If, however, the government decides to compete against the private sector with its top-down directed design methods and protocols, our commercial industry will be lost to China, much like the drone market was just a decade ago. Economic dominance in the space industry, not space weapons, will ultimately decide which side defines the 21st-century space domain and the national security implications that come with it. America must strategically rethink policies that will take advantage of, rather than compete against, its blossoming commercial space industry. Getting space policy right—commercial industry first and using government solutions only when necessary—will lead to explosive growth. Getting policy wrong? Well, just ask the Soviets. Charles Beams is executive chairman and chief strategy officer of Colorado-based York Space Systems and chairman of the SmallSat Alliance. https://aviationweek.com/aerospace/commercial-space/opinion-innovation-will-ensure-us-security-space

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