Marines expect ‘big year’ for drone, ship and logistics testing

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  4 mars 2024 | International, Terrestre

  EU aims to shift European arms industry to ‘war economy mode’

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  21 août 2018 | International, Aérospatial, Naval

  The Navy's Fighter Shortage Is Finally, Slowly Improving

  By Kyle Mizokami The U.S. Navy's horrible fighter availability rate is gradually improving thanks to increased funding for fighter maintenance. At one point in 2017, just one in three F/A-18 Super Hornet fighters was available, a number that's increased to nearly half of all fighters. The problem is in large part due to past budget shortfalls and delayed introduction of the F-35 fighter jet. The U.S. Navy has 546 F/A-18E and F/A-18F Super Hornet fighters, larger, beefier, slightly stealthier versions of the original F/A-18 Hornet. Aircraft readiness rates, or the percentage of aircraft ready for deployment, should typically be north of seventy five percent, depending on type of aircraft, the complexity of the aircraft systems, and the age of the fleet. In 2017, the Navy's Super Hornet fleet hovered around 30 percent readiness, a shockingly low number the service blamed on minimal maintenance budgets and non-stop operations. The Navy struggled to place flight-capable aircraft with squadrons deploying on aircraft carriers. On the outside things looked fairly normal, as carriers went to sea with flight decks filled with Super Hornets. Behind the scenes however non-deployed squadrons suffered, acting as spare parts donors for deployment-bound ships. This cascading effect had negative implications for stateside squadrons and pilot training. According to DefenseNews, Secretary of the Navy Richard Spencer cited increased maintenance budgets over the past two years as a major part of the turnaround, allowing the service to fund repairs and spare parts. The service also streamlined maintenance processes, avoiding duplication and increasing efficiency. The maintenance crisis was caused by several problems. The high demand for strike fighters, particularly for combat operations against the Islamic State, increased the amount of wear and tear on the Super Hornet fleet. Super Hornets also act as aerial refueling tankers, increasing flight hours and wear and tear on the platform. Meanwhile the Navy struggled to operate within the budget mandated by the 2011 Budget Control Act that trimmed federal spending. Making matters worse, so-called "continuing resolutions" passed during times of budget bickering to keep government going were an inefficient means of spending money and played havoc with the Pentagon's budget. Another problem that indirectly cause the crisis: a delay in the introduction of the U.S. Navy's version of the Joint Strike Fighter, the F-35C. The F-35C, meant to replace older F/A-18C Hornet fighters, is now at least three years behind schedule. As the chart above illustrates, the Navy originally expected the F-35C to be initial operations capable—when the first Navy squadron is at least partially combat-capable—in late 2015. That date has gradually slipped to late 2018 or early 2019. On the outside things looked fairly normal, as carriers went to sea with flight decks filled with Super Hornets. Behind the scenes however non-deployed squadrons suffered, acting as spare parts donors for deployment-bound ships. This cascading effect had negative implications for stateside squadrons and pilot training. According to DefenseNews, Secretary of the Navy Richard Spencer cited increased maintenance budgets over the past two years as a major part of the turnaround, allowing the service to fund repairs and spare parts. The service also streamlined maintenance processes, avoiding duplication and increasing efficiency. The maintenance crisis was caused by several problems. The high demand for strike fighters, particularly for combat operations against the Islamic State, increased the amount of wear and tear on the Super Hornet fleet. Super Hornets also act as aerial refueling tankers, increasing flight hours and wear and tear on the platform. Meanwhile the Navy struggled to operate within the budget mandated by the 2011 Budget Control Act that trimmed federal spending. Making matters worse, so-called "continuing resolutions" passed during times of budget bickering to keep government going were an inefficient means of spending money and played havoc with the Pentagon's budget. Another problem that indirectly cause the crisis: a delay in the introduction of the U.S. Navy's version of the Joint Strike Fighter, the F-35C. The F-35C, meant to replace older F/A-18C Hornet fighters, is now at least three years behind schedule. As the chart above illustrates, the Navy originally expected the F-35C to be initial operations capable—when the first Navy squadron is at least partially combat-capable—in late 2015. That date has gradually slipped to late 2018 or early 2019. As a result of this delay, the Navy was forced to extend the lives of five squadrons of older -C model Hornets while it waited for the F-35C. That work added to the burden of Navy maintenance units already working to keep Super Hornets flying. In addition to the Navy's maintenance work, Boeing is set to take 40 to 50 Super Hornets a year and upgrade them to the new Block III configuration. DefenseNews says this will also bring the jets in the worst shape back to flying condition. In the long term F-35C production should ease the burden on the Super Hornet community, as the fifth generation fighter will eventually equip half of the strike fighter squadrons deployed on U.S. Navy carriers. The executive branch's 2019 defense budget also plans for an additional 110 Super Hornets over five years. Finally, the Navy plans to acquire a small fleet of MQ-25 Stingray unmanned aerial refueling aircraft to take over tanking duties from the overworked strike fighters. Full article: https://www.popularmechanics.com/military/aviation/a22778556/us-navy-fighter-shortage-progress

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  21 juin 2018 | International, Sécurité

  Synthetic biology raises risk of new bioweapons, US report warns

  Ian Sample Report warns that swift progress in our ability to manufacture viruses is making us vulnerable to biological attacks The rapid rise of synthetic biology, a futuristic field of science that seeks to master the machinery of life, has raised the risk of a new generation of bioweapons, according a major US report into the state of the art. Advances in the area mean that scientists now have the capability to recreate dangerous viruses from scratch; make harmful bacteria more deadly; and modify common microbes so that they churn out lethal toxins once they enter the body. The three scenarios are picked out as threats of highest concern in a review of the field published on Tuesday by the US National Academy of Sciences at the request of the Department of Defense. The report was commissioned to flag up ways in which the powerful technology might be abused, and to focus minds on how best to prepare. Michael Imperiale, chair of the report committee, and professor of microbiology and immunology at the University of Michigan, said the review used only unclassified information and so has no assessment of which groups, if any, might be pursuing novel biological weapons. “We can't say how likely any of these scenarios are,” he said. “But we can talk about how feasible they are.” In the report, the scientists describe how synthetic biology, which gives researchers precision tools to manipulate living organisms, “enhances and expands” opportunities to create bioweapons. “As the power of the technology increases, that brings a general need to scrutinise where harms could come from,” said Peter Carr, a senior scientist at MIT's Synthetic Biology Center in Cambridge, Massachusetts. More than 20 years ago, Eckard Wimmer, a geneticist at Stony Brook University in New York, highlighted the potential dangers of synthetic biology in dramatic style when he recreated poliovirus in a test tube. Earlier this year, a team at the University of Alberta built an infectious horsepox virus. The virus is a close relative of smallpox, which may have claimed half a billion lives in the 20th century. Today, the genetic code of almost any mammalian virus can be found online and synthesised. “The technology to do this is available now,” said Imperiale. “It requires some expertise, but it's something that's relatively easy to do, and that is why it tops the list.” Other fairly simple procedures can be used to tweak the genes of dangerous bacteria and make them resistant to antibiotics, so that people infected with them would be untreatable. A more exotic bioweapon might come in the form of a genetically-altered microbe that colonises the gut and churns out poisons. “While that is technically more difficult, it is a concern because it may not look like anything you normally watch out for in public health,” Imperiale said. The report calls on the US government to rethink how it conducts disease surveillance, so it can better detect novel bioweapons, and to look at ways to bolster defences, for example by finding ways to make and deploy vaccines far more rapidly. For every bioweapon the scientists consider, the report sets out key hurdles that, once cleared, will make the weapons more feasible. One bioweapon that is not considered an immediate threat is a so-called gene drive that spreads through a population, rewriting human DNA as it goes. “It's important to recognise that it's easy to come up with a scary-sounding idea, but it's far more difficult to do something practical with it,” said Carr. https://www.theguardian.com/science/2018/jun/19/urgent-need-to-prepare-for-manmade-virus-attacks-says-us-government-report