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  2 juillet 2019 | International, Aérospatial

  Strategic Air Bases Receive First Counter-UAS Systems

  RACHEL S. COHEN Several Air Force installations with strategic assets are now armed with systems to protect against small unmanned aircraft that might loiter nearby. Steve Wert, the Air Force's digital program executive officer helping to roll out counter-UAS systems, said the service had fielded initial capabilities to an undisclosed number of US Strategic Command and Air Force Global Strike Command sites. Speaking at an Air Force Life Cycle Management Conference recently in Dayton, Ohio, Wert described the new systems as “a command-and-control capability integrated with some detection and some jamming,” but did not mention kinetic attacks. “Much more work to do,” he said. “We're finding the typical problems you will find on some bases. In order to have a radar providing detection, you actually have to build a tower. Building towers is hard because you have to do environmental assessments.” The systems provide “a composite suite of options” to sense and defeat drones attempting to enter restricted airspace around nuclear, space, electronic warfare, long-range strike, and missile defense resources, Air Force spokeswoman Laura McAndrews said. “The concept of ‘tailored and layered defense' provides the ability to execute kinetic solutions, such as traditional ballistic rounds and capture nets, coupled with other countermeasures that disrupt the operator's ability to navigate drones in our restricted airspace,” she said. The Air Force and Army are also collaborating on using 40 mm ammunition with nets that deploy and wrap around the drones to bring them down. “We've had some recent success working with the Army on kinetic defeat, successful test round firings,” Wert said. “The idea of a net round is probably a good solution, but that system's becoming accurate enough where the training rounds are directly hitting UAVs, so very good results there.” In May, Pentagon acquisition chief Ellen Lord told reporters Defense Department officials were concerned that military personnel weren't aware of their options for addressing UAVs and the services weren't sharing their ideas. Combatant command representatives and acquisition officials meet each month to discuss the right way forward. That's generated a list of counter-UAS systems in the DOD with details on their maturity, how many are deployed, and how they are used, Lord said. The Air Force is also working toward laser and microwave weapons for that purpose. The FAA already regulates how and where small UAS are allowed to fly, though those rules are evolving in collaboration with the Pentagon, which called the issue a high priority earlier this year. “I really do think of these UAVs as something that's low-cost, it's easy to manipulate,” then-acting Defense Secretary Patrick Shanahan told the Senate Appropriations Committee in May. “We need to develop the capabilities and the rules because, quite frankly, this airspace is shared by so many different authorities, so it's as much about rules to operate in space as it is the technologies to defeat them.” Over the past few years, Defense Department officials have pointed to instances of enemy combatants dispatching small drones for strike and intelligence-gathering in the Middle East and of unmanned aerial vehicles lingering near high-end aircraft. US Strategic Command did not answer how many little aircraft have been spotted lately or if the number is growing. "So far, they've been incidental activities,” STRATCOM boss Gen. John Hyten said at a 2017 Senate Armed Services Committee hearing. "But the fact that they're occurring, and then if you watch what is happening overseas in the [US Central Command theater] with the use of lethal UAVs and the use of UAVs for surveillance on the part of a terrorist adversary, I'm very concerned that those same kind of UAVs could be employed against our weapon storage facilities, especially on the nuclear weapon storage facilities." Air Combat Command chief Gen. Mike Holmes in 2017 also noted two incidents that interfered with operations on the same day and required reports to Air Force leadership. Conventional military assets need similar policies and protections as STRATCOM has put in place over the past few years, allowing workers to track and engage drones when needed, he argued. "At one base, the gate guard watched one fly over the top of the gate shack, tracked it while it flew over the flight line for a little while, and then flew back out and left," Holmes said. "The other incident was an F-22 . . . had a near collision with a small UAS, and I don't have anything that I can do about it." http://www.airforcemag.com/Features/Pages/2019/July%202019/Strategic-Air-Bases-Receive-First-Counter-UAS-Systems.aspx

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  30 juillet 2020 | International, Aérospatial

  America’s F-22 stealth fighter may be limited in Asia-Pacific conditions, China’s J-20 designer says

  Aircraft has been sent to the region but was designed for combat in Europe, which could affect its capabilities, according to Yang Wei China's answer to the Raptor has yet to be put to the test in a real combat situation, military expert notes Minnie Chan Published: 12:00am, 30 Jul, 2020 America's F-22 Raptor stealth fighter was designed for combat in Europe but is now being used in the Asia-Pacific, according to a top Chinese aircraft designer, who says the different conditions will limit its capabilities there. Yang Wei, general designer of China's first stealth fighter the J-20, said the twin-engine F-22s could face the same challenges in the region as the F-4 fighter-bombers the Pentagon sent to the Vietnam war between 1965 and 1973. “The complex environment and political constraints in Vietnam caused the F-4 to almost fail to show its high-speed performance and over-the-horizon combat capabilities,” Yang wrote in a paper published in Chinese aeronautics journal Acta Aeronautica et Astronautica Sinica last month. He said the F-22, a tactical fighter inspired by the Cold War between the United States and the former Soviet Union, was designed for battle in Europe and could face similar problems now that it had been deployed in the Asia-Pacific. Yang did not draw any comparisons between America's F-22 and China's J-20 both fifth-generation, twin-engine heavy fighter jets and of a similar size. But military experts said his remarks indicated that the J-20 Weilong, or Powerful Dragon, was clearly seen as China's answer to the F-22. Comparing the two, Song Zhongping, a military commentator in Hong Kong, said the J-20's biggest advantage was that it was developed later, meaning its designers could learn from the F-22 – including how to fix shortcomings, and what type of new technologies could be used to optimise the aircraft. “The F-22 was originally designed for combat with the former Soviet Union, or today's Russia, in Europe, but now the Raptor's main opponent is the [People's Liberation Army] in the Asia-Pacific,” Song said. “China's J-20 was inspired by the F-22's deployment. The Chinese aircraft designers used the Raptor as a rival and the F-35 [stealth multi-role fighter] as a tactical opponent to help them to come up with a more practical and capable fighter jet.” Both the F-22 and the J-20 have a ceiling of 20km (12.4 miles) and a maximum speed of over Mach 2 (2,470km per hour, or 1,535mph) – faster than the speed of sound. The F-22 has a comparatively shorter range – with a combat radius of 800km (497 miles), while the J-20's large internal fuel tank can sustain a longer combat radius of 1,100km (684 miles). But Beijing-based military expert Zhou Chenming noted that the J-20, which entered service in 2017, had yet to be put to the test in a real combat situation. Andrei Chang, founder of influential military magazine Kanwa Asian Defence, said that in contrast, the F-22's combat capabilities had been seen, most recently last year when the stealth fighters were sent to Qatar as tensions rose with Iran. “The operation of the F-22 has been perfected since it joined the US military in 2005. The Raptor has taken part in countless actual combat situations around the globe, including in the Middle East, Singapore and Okinawa in the Pacific,” Chang said. A military source close to the PLA believed the J-20 could counter the F-22 in a one-on-one combat situation, but said far fewer of the fighter jets had been made compared to America's Raptors. “At the moment China has about 60 J-20s – just one-third of the total number of F-22s,” said the source, who requested anonymity due to the sensitivity of the matter. “Now the US has deployed hundreds of F-35s to the region, so it's an even bigger threat to China,” he added. With F-22s being deployed to the Asia-Pacific region – and as relations worsen with Washington, including over the disputed South China Sea – Beijing has stepped up development of its new stealth fighter. Mass production of the J-20B began earlier this month. https://www.scmp.com/news/china/military/article/3095219/americas-f-22-stealth-fighter-may-be-limited-asia-pacific

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  19 octobre 2021 | International, Aérospatial, Naval, Terrestre, C4ISR, Sécurité

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