November 7, 2023 | International, Land
Rheinmetall Defence Australia seeks industry partners for Royal Australian Navy’s Multi Ammunition Softkill System (MASS)
Following extensive trials, MASS was selected on account of its unique capabilities.
August 5, 2019 | International, Aerospace
Hypersonic threats need an offense-defense mix
By: Melanie Marlowe
Next week, people from across the missile defense community will gather at an annual symposium in Huntsville, Alabama, to consider how to adapt U.S. missile defense efforts to the challenge of renewed competition with Russia and China. A centerpiece of their discussions will be the emergence of advanced hypersonic missile threats and what to do about them.
Over the past few years, the Pentagon has prioritized the development of offensive hypersonic strike weapons, with billions of dollars in contracts already awarded for each of the major military services to acquire hypersonic strike missiles of their own.
The counter-hypersonic mission, however, received surprisingly short shrift in recent defense budgets, with progress on hypersonic defense thus far piecemeal and halting. Some leading military officials charged with procuring hypersonic strike missiles have said that defending against hypersonic missiles is too hard, so we shouldn't even try.
That short-sighted approach is at odds with the vision of newly confirmed Secretary of Defense Mark Esper, who stated to Congress that he will advocate hypersonic missile defense, to include the development of new sensors, interceptors, and advanced command-and-control systems.
Public commentary on hypersonic threats has been somewhat hyperbolic. Yes, hypersonics are fast — five or more times the speed of sound — but that's slower than many ballistic missiles. Aerodynamic maneuver makes for a less predictable flight path, but this also means that atmospheric friction would remove the kind of decoys that might accompany a ballistic reentry vehicle. Whether a boosted glide vehicle, a scramjet cruise missile or a maneuverable quasi-ballistic missile, hypersonics pose a complex air defense challenge, but they are not invulnerable.
The strategic significance of hypersonics is nevertheless quite real. Today's Patriot, Terminal High Altitude Area Defense and Aegis defenses protect American carrier groups and ground forces against aerial and ballistic missile attack. Designed to go around or under those defenses, hypersonics are a more sophisticated means to hold forces at risk, and thereby undermine our broader defense goals and alliance system. Even if the United States catches up with the Chinese and Russians on hypersonic strike, our adversaries' ability to hold U.S. carriers and forward bases at risk will push back U.S. forces. They could certainly also be used to target the American homeland, but the more urgent threat is regional. Passive defense only goes so far — ships can only go so fast, and air bases cannot be moved. Active defenses must be part of a balanced strategy.
The first priority here is a space sensor layer. Unlike ballistic missiles, hypersonic missiles fly at lower and changing altitudes, are harder to see, and travel an uncertain flight path. Current early warning satellites can detect the launch of boost-glide vehicles but are unsuited to tracking them during the glide phase. Today's surface-based ballistic missile radars would only be able to spot a weapon once it crosses the horizon. Only space sensors can provide birth-to-death, fire-control quality tracks for hypersonic missiles.
Unfortunately, recent budget requests have been rather tepid in their commitment to space sensors. The administration's 2020 request virtually divested the program, and for the second year in a row the Missile Defense Agency listed the space sensor layer as its No. 1 unfunded priority. Thankfully, Congress seems to be in the process of restoring $108 million to return the program to the MDA to move out on development this year.
The second element of hypersonic defense is interceptors. Although existing interceptors may well be improved, Secretary Esper has affirmed that new interceptors will have to be developed that are better suited to the mission's stressing thermal and high-maneuver environment. The MDA's third-highest unfunded priority for 2020 — $720 million for hypersonic defense — seems unlikely to be restored this year, but should be restored in the 2021 budget. Directed-energy weapons could potentially target hypersonic threats in their cruise phase or jam them in their terminal phase, but the mission's complexity will almost certainly require both kinetic and nonkinetic effectors.
The most challenging element will be developing a command-and-control architecture that ties everything together. A long-range hypersonic glide vehicle of significant range could cross continents and multiple combatant commands. Even with better interceptors and an adequate sensor layer, information and fire-control solutions must be developed and rapidly passed to commanders. The Command and Control, Battle Management, and Communications network that supports the Ballistic Missile Defense System may be the foundation of such an architecture, but more dramatic upgrades will be required.
The advent of the hypersonic era is central to the efforts by Russia and China to counter U.S. power projection in the world. The Pentagon's recent focus on hypersonic strike is necessary but insufficient. It falls now to congressional leadership and those assembling the 2021 budget to rebalance it with a more appropriate mix of hypersonic strike and defense.
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April 2, 2019 | International, Aerospace
U.S. Air Force to Develop AI-Powered Combat UAV
Author: Mike Rees The U.S. Air Force has announced that its Office of Strategic Development Planning and Experimentation at the Air Force Research Laboratory is working on fielding a prototype Autonomous Unmanned Combat Air Vehicle as an Early Operational Capability as early as 2023. The program, known as Skyborg, and the SDPE office have issued a request for information to industry to conduct market research and concept of operations analysis to learn what is commercially available now as high technology readiness level capabilities which can meet the requirements and timeline of the Skyborg program. Skyborg officially stood up as a fiscal year 2019 funded pathfinder program through SDPE in October 2018, according to Ben Tran, Skyborg program manager. “There was a lot of analysis that determined what was put into the CRFI,” Tran said. “We've been given the overall objective to have an early operational capability prototype fielded by the end of calendar year 2023, so this is our first step in determining what the current state of the art is from a technology perspective and from a systems engineering perspective to provide that EOC capability in 2023.” Low cost, attritable, unmanned air vehicles are one way to bring mass to the fight when it comes to addressing potential near-peer engagements in the future, according to Tran. “We also know there is heavy investment by our near-peer adversaries in artificial intelligence and autonomy in general. We know that when you couple autonomy and AI with systems like low-cost attritables, that can increase capability significantly and be a force multiplier for our Air Force and so the 2023 goal line is our attempt at bringing something to bear in a relatively quick time frame to show that we can bring that kind of capability to the fight.” Matt Duquette, an AFRL Aerospace Systems Directorate engineer, brings a background in UAV control, autonomy, and modeling and simulation of UAVs, especially teams of UAVs to the effort while assisting the Skyborg program with formulating its approach to the autonomy system and some of the behaviors that the UAVs will have. “Skyborg is a vessel for AI technologies that could range from rather simple algorithms to fly the aircraft and control them in airspace to the introduction of more complicated levels of AI to accomplish certain tasks or subtasks of the mission,” Duquette said. This builds on much of the AFRL foundational work with AI shown with programs such as Have Raider and the Auto Ground and Air Collision Avoidance systems, which prove that levels of autonomy in high performance aircraft are not only possible, but also practical. “Part of our autonomy development is building assurance into the system. You can either build assurance by using formal methods or approaches where at design time, as you develop these autonomous capabilities, you guarantee certain behaviors, or a more practical approach is to assess the capabilities of these behaviors at run time, meaning while they're running on the aircraft. So, those are the capabilities that we're interested in looking at from the experimentation level to see what type of assurance you need in the system so you can mix high and low criticality.” “We're looking at a range of vehicle performance parameters – mission analysis will help us determine what the final outcome is and the responses from the CRFI will help us understand what the performance is of currently available systems and whether those will meet the needs or not. Everything from keeping up with combat platforms to slower platforms for sensing. There will be a range of possibilities there,” said Patrick Berry, from AFRL's Sensors Directorate, who is supporting the Skyborg program by conducting modeling, simulation and analysis. Although Skyborg is not scheduled for any particular type of aircraft platform at this time, Tran said the CRFI emphasizes the importance of an open systems architecture, having modularity in the system, not only from a sensing capabilities standpoint, but overall mission systems, as well as the autonomy associated with the mission capability for the platform. “We've partnered with the 412th Test Wing at Edwards Air Force Base, California, and specifically an organization called the Emerging Technologies Combined Test Force and we're working with them beginning with small, fast-moving UAVs to test the current state of the art in AI and autonomy in those airplanes and the ability for them to autonomously team and collaborate in flight,” Tran said. Machine learning has progressed greatly over the last few years and we're very inspired by those results and excited by things that are going on in the gaming industry for instance,” said Maj. Ryan Carr, from AFRL's Aerospace Systems Directorate. “We expect that technology will continue to mature fairly rapidly. What we really need to understand is, ‘How do you take that and do something like bring it to the real world and fly with it for example?' The thing we're trying to get at early on is how to do that safely. We're talking about run-time assurance, working hand-in-hand with the flight test community who have a very long record of safe flight testing. That's really what we want to focus our attention on in this early period,” Carr said. “We want to do this in a way that builds trust in the system as you go along so that when you get to that EOC, you will have established a baseline of trust so that operational youth will believe what the system will do or believe it's safe. It's not just that end-state capability, it's the trust as you go along,” he added. Before operational AI innovation can occur, the Air Force must field an autonomous system that meets an immediate operational need and can serve as an iterative platform to facilitate complex AI development, prototyping, experimentation and fielding, and that system is Skyborg, the CRFI says. https://www.unmannedsystemstechnology.com/2019/03/u-s-air-force-to-develop-ai-powered-combat-uav/
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August 3, 2024 | International, Security
US to boost military presence in Middle East amid growing tensions
The U.S. Defense Department will move a fighter jet squadron to the Middle East and maintain an aircraft carrier in the region.