June 18, 2021 | International, Aerospace
US Army could soon have a high-power microwave to destroy small drone swarms
The Army wants to begin high-power microwave development and prototyping efforts in FY22 to defeat small drone swarms.
November 25, 2019 | International, Aerospace
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/
June 18, 2021 | International, Aerospace
The Army wants to begin high-power microwave development and prototyping efforts in FY22 to defeat small drone swarms.
December 11, 2020 | International, Aerospace, Naval
San Diego, December 10, 2020 (GLOBE NEWSWIRE) -- Kratos Defense & Security Solutions, Inc. (NASDAQ: KTOS), a leading National Security Solutions provider and industry-leading provider of high-performance, jet-powered unmanned aerial systems, announced today that Kratos has received an additional $38,691,360 from the U.S. Navy for Lot 2 of its recently-awarded Full Rate Production (FRP) contract for an additional 48 BQM-177A Subsonic Aerial Targets (SSAT) and associated technical data. Steve Fendley, President of Kratos Unmanned Systems Division, said, “The SSAT is an incredibly high-performance threat representation system consistently providing performance levels previously unachievable. The exercise of the FRP Lot 2 option secures the uninterrupted production of our SSAT system well into the Government's Fiscal Year (GFY) 2023. Concurrently, we have been part of the Navy's site activation plan and I couldn't be prouder of the part we played in supporting the first flight at the Pacific Missile Range Facility in Kauai, Hawaii last month. Under Captain Molly Boron's leadership, the NAVAIR-Kratos team is already halfway to its goal of achieving Full Operational Capability (FOC) in GFY21. Even under normal circumstances, achievement of FOC would be very challenging but to be making the progress we have during this pandemic is a testament both to the Navy's leadership and the commitment and perseverance of the Kratos team during these challenging times.” About Kratos Defense & Security Solutions Kratos Defense & Security Solutions, Inc. (NASDAQ:KTOS) develops and fields transformative, affordable technology, platforms and systems for United States National Security related customers, allies and commercial enterprises. Kratos is changing the way breakthrough technology for these industries are rapidly brought to market through proven commercial and venture capital backed approaches, including proactive research and streamlined development processes. At Kratos, affordability is a technology, and we specialize in unmanned systems, satellite communications, cyber security/warfare, microwave electronics, missile defense, hypersonic systems, training, combat systems and next generation turbo jet and turbo fan engine development. For more information, please visit www.KratosDefense.com. Notice Regarding Forward-Looking Statements Certain statements in this press release may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are made on the basis of the current beliefs, expectations and assumptions of the management of Kratos and are subject to significant risks and uncertainty. Investors are cautioned not to place undue reliance on any such forward-looking statements. All such forward-looking statements speak only as of the date they are made, and Kratos undertakes no obligation to update or revise these statements, whether as a result of new information, future events or otherwise. Although Kratos believes that the expectations reflected in these forward-looking statements are reasonable, these statements involve many risks and uncertainties that may cause actual results to differ materially from what may be expressed or implied in these forward-looking statements. For a further discussion of risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of Kratos in general, see the risk disclosures in the Annual Report on Form 10-K of Kratos for the year ended December 29, 2019, and in subsequent reports on Forms 10-Q and 8-K and other filings made with the SEC by Kratos. Press Contact: Yolanda White 858-812-7302 Direct Investor Information: 877-934-4687 investor@kratosdefense.com View source version on Kratos Defense & Security Solutions, Inc.: https://ir.kratosdefense.com/news-releases/news-release-details/naval-air-systems-command-exercises-option-additional-387
October 1, 2023 | International, Aerospace
To use a hockey analogy, Boeing plays hard with its elbows up. It does so with the full support of the American government. We need to do the same for our aerospace industry.