6 décembre 2021 | International, Aérospatial

Most USAF Mission-Capable Rates Dropped In 2021

The U.S. Air Force's entire fleet had a mission-capable rate of 71.53% in fiscal 2021, a slight drop from 2020's total rate of 72.74%.

https://aviationweek.com/defense-space/budget-policy-operations/most-usaf-mission-capable-rates-dropped-2021

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  • The US Navy’s modernization rush must not harm mine countermeasures

    11 mai 2020 | International, Naval

    The US Navy’s modernization rush must not harm mine countermeasures

    By: Rep. Rob Wittman As the world continues to grapple with the COVID-19 pandemic, we are reminded that even in a time of unprecedented technological growth and development, simple and primitive threats have the ability to radically alter our way of life. In spite of astonishing medical advancements, some threats, unfortunately, remain timeless. Many people have drawn comparisons between the current coronvirus pandemic and the Spanish flu pandemic of 1918. The Spanish flu was caused by an H1N1 virus that was first identified in the United States in military personnel in the spring of 1918. It would eventually infect one-third of the global population, killing approximately 675,000 people in the United States and an estimated 50 million people worldwide. All of this was happening in the midst of the “war to end all wars” — World War I. While the homeland was battling the flu pandemic, the U.S. Navy was battling the U-boat threat in the Atlantic. In World War I, German submarines sank almost 5,000 ships, most of them merchant vessels. To help counter the U-boat threat, the United States and the United Kingdom embarked on an unprecedented and ambitious project: the construction of the North Sea Mine Barrage — a 230-mile-long underwater barrier of sea mines stretching from Aberdeen, Scotland, to Ekersund, Norway. The effort was a marvel of modern manufacturing, producing 1,000 sea mines every day. Over five months, the allies eventually laid over 70,000 sea mines, helping to contain the U-boat threat and protect allied shipping. As a second wave of the flu pandemic raged across the globe, World War I finally came to an end in November 1918. The American and British navies now had the task of cleaning up 70,000 live sea mines in the unforgiving North Sea. These primitive mines were anchored to the bottom of the sea, and the U.S. and U.K. had the advantage of knowing precisely where they were located because they had laid them. Despite those advantages, it took 82 ships and over 4,000 men — 10 times the assets that were required to lay the mines — to clean up the North Sea Mine Barrage. After almost a year of mine-clearing efforts, the operation was declared complete. Navy studies would later reveal that only approximately 40 percent of the American mines had actually been cleared, and mines continued to wash ashore for years after the end of the war. Fast forward a century and sea mines have proliferated around the world. Since the end World War II, sea mines have damaged or sunk four times as many U.S. Navy ships as any other method of attack. U.S. adversaries have paid attention. Russia was a pioneer in mine warfare and is estimated to have as many as 250,000 sea mines in its inventory. China is not far behind, with an inventory of around 100,000, including some of the world's most advanced mines. China has hundreds of mine-capable ships and aircraft, and could deploy thousands of mines a day during a conflict. To counter the mine threat, the U.S. Navy relies on 11 wooden-hulled Avenger-class mine countermeasures ships, 31 MH-53E Sea Dragon helicopters and a handful of explosive ordnance disposal platoons. The Navy wants to retire both the Avengers and Sea Dragons by 2025, while efforts to field any replacement capability have continued to falter. While the U.S. Navy has focused its research and funding on countering emerging threats such as advanced radars and hypersonic missiles, a time-tested threat waits patiently in the waters around the globe; and if we ignore the lessons of history, a centuries-old technology could lead to our defeat. Mine warfare, like public health, is an area that rarely attracts attention or significant investment until a crisis emerges. We should not wait until American lives are in peril before we take action. We need to change course immediately. First, the Navy must maintain its existing mine countermeasures forces until a credible replacement is fielded. Second, the Navy must make a significant investment to recapitalize the mine countermeasures force both in time and quantity to deliver a credible force. Unfortunately, the Navy has spent billions of dollars and wasted precious years pursuing a mine countermeasure module program that, even if it worked as advertised, would have neither the capability nor the capacity to effectively counter an enemy mine threat anticipated in our National Defense Strategy. Whether it's a pandemic or a proliferated naval threat, our citizens expect the United States to respond effectively, and we must make the necessary investments to counter the threats to our nation and our Navy. https://www.defensenews.com/opinion/commentary/2020/05/08/the-us-navys-modernization-rush-must-not-harm-mine-countermeasures/

  • Here are the intelligence community’s top 6 priorities

    20 août 2018 | International, C4ISR

    Here are the intelligence community’s top 6 priorities

    By: Mark Pomerleau For the first time in recent history, the intelligence community has established a common vision with common operating principles that reaches all of its disparate agencies. “The leaders of the intelligence community about a year ago got together and we – for the first time I can recall – got together and established a common vision for ourselves called IC 2025,” Sue Gordon, principal deputy director of national intelligence, said Aug. 15 at the DoDIIS conference in Omaha, Nebraska. The vision, she said, explains what the community needs to fulfill the IC's mission and how the community must work together. Gordon had previously discussed these priorities during a presentation at the GEOINT symposium in April. The priorities include: ♦ Relying on Automated Intelligence using Machines, or AIM. The IC is establishing an AIM center – in concert with the Department of Defense's Joint Artificial Intelligence Center – to help the community harness the power of technology. Gordon said she prefers the “AIM” lexicon because she is interested in outcomes, not technology. One such outcome is the commitment that no U.S. or allied service member will ever be at a disadvantage on the battlefield because and adversary can make better use of data, she said in Omaha. ♦ Developing the right workforce. Gordon said in April that if the intel community is going to harness the power of machines to use more of the data productively, then they have to invest more in humans. ♦ Developing a comprehensive cyber strategy. Cyber is not a thing, it is a vehicle by which so many imperatives are addressed, Gordon said in April, adding that it includes cyber protection. “If you hear about it in public it's who's in charge. I think that is a total misnomer,” she said. “We really have to address the cyber attack and the cyber posturing that is happening to us every day and help this administration figure out the response we need.” ♦ Creating a modern data management infrastructure. Pursing data without a purpose, Gordon said at the GEOINT symposium, is probably not going to get the community there but not understanding that data management is the key to any of the elements of success they portend will not put efforts in the right area. ♦ Increasing and leveraging partnerships with the private sector. This is an area most all leaders in the defense and intelligence space acknowledge is necessary for success. ♦ Improving acquisition agility. Part of this comes from security clearance reform, she said in April, describing security clearance reform at DoDIIS as one of the existential threats within the IC. Full article: https://www.c4isrnet.com/show-reporter/dodiis/2018/08/17/here-are-the-intelligence-communitys-top-6-priorities

  • How Nanotech Will Help the U.S. Military Reach Mach 5

    25 novembre 2019 | International, Aérospatial

    How Nanotech Will Help the U.S. Military Reach Mach 5

    The U.S. government is pushing into hypersonic weapons in a big way, with at least five different weapons programs currently in development. Nanotechnology is shaping up to be a key tech that will enable delivery systems to survive traveling through the atmosphere at Mach 5 and above, with carbon nanotubes showing promise as strong, lightweight material that rapidly sheds heat. Hypersonic weapons are weapons that travel at incredible speeds through the atmosphere. Hypersonics start at Mach 5 (3,836 miles an hour), or five times the speed of sound. Pushing an object through the air at really, really fast speeds creates a unique problem: as speed increases, the friction from the object passing through air also increases. This friction generates heat. The skin of the SR-71 Blackbird strategic reconnaissance jet and the fasted manned airplane ever built regularly warmed to up to 500 degrees Fahrenheit at Mach 3. The X-15 rocket plane, flown during the 1960s, reached temperatures of 1200 Fahrenheit as it flew to Mach 6. At Mach 10, the friction is enough to “melt the toughest steel,” while at Mach 20, the temperature reaches an astounding 17,000 Fahrenheit. Eventually, hypersonic weapons could reach Mach 24. Scientists and engineers understand how to handle traditional air friction problems thanks to the technical challenges of spacecraft and nuclear warheads re-entering the atmosphere. But a missile warhead de-orbiting over an enemy target is only exposed to heat for a handful of minutes, as it transitions from space to the atmosphere and finally smashes into its target. A hypersonic weapon, on the other hand, spends its entire flight within the atmosphere and is exposed to high heat the entire time. An article at DefenseOne describes how scientists are working with carbon nanotubes to solve the heat issue. Scientists at Florida State University's High-Performance Materials Institute are looking into using carbon nanotubes as a construction material for hypersonic weapons. Carbon nanotubes are a synthetic material consisting of carbon tubes with a diameter as small as one nanometer. Carbon nanotubes are stronger than steel and insulate against heat. Now, researchers have discovered that soaking carbon nanotubes in phenol can increase their ability to disperse heat by one-sixth, allowing less nanomaterials to be used for the same job. What does this mean for hypersonic weapons? It means that materials that can stand the heat and stresses of hypersonic, atmospheric travel are on the way, and that hypersonic weapon designers could even safely achieve higher speeds by using thicker layers of the stuff. https://www.popularmechanics.com/military/research/a29847271/us-military-nanotech/

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