30 juillet 2020 | International, Aérospatial
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.
12 octobre 2023 | International, Terrestre
Saab will provide the sight- and fire control capability for the BAE Systems’ CV90 ordered by the Czech Republic earlier in 2023 and will carry out the work in Sweden...
23 décembre 2022 | International, Aérospatial
The Pentagon plans to spend about $100 billion in the next five years to modernize its tactical aviation fleets.
29 mai 2020 | International, C4ISR
By: Aaron Mehta WASHINGTON — With artificial intelligence expected to form the backbone of the U.S. military in the coming decades, the Army is launching a trio of new efforts to ensure it doesn't get left behind, according to the head of Army Futures Command. While speaking at an event Wednesday hosted by the Defense Writers Group, Gen. Mike Murray was asked about areas that need more attention as his command works to modernize the force. Murray pointed to a change in how the service does long-term planning, as well as two personnel efforts that could pay off in the long run. The first is something Murray has dubbed “Team Ignite,” which he described as “ad hoc, right now,” with a hope to formalize the process in the future. In essence, this means bringing in the teams that write the concept of operations for the military and having them work next to the technologists driving research and development efforts so that everything is incorporated early. “It has occurred to me for a long time that when we prepare concepts about how we will fight in the future, they are usually not informed by scientists and what is potentially out there in terms of technology,” Murray said. “And when we invest in technologies, rarely do we consult the concept writers to understand what type of technology will fundamentally change the way we fight in the future.” In Murray's vision, this means soon there will be “a concept writer saying, ‘If only I could [do something we can't do now], this would fundamentally change the way we would fight,' and a scientist or technologist saying, ‘Well, actually we can, you know, another 10-15 years,' and then vice versa,” he said. “Really using that to drive where we're investing our science and technology dollars, so that in 10 or 15 years we actually can fundamentally change the way we're going to fight.” The Futures Command chief also laid out two new efforts to seed understanding of AI throughout the force, saying that “a key component of the Army moving more and more into the area of artificial intelligence is the talent that we're going to need in the formation to do that.” Murray described a ”recently approved” masters program to be run through Carnegie Mellon University, focusing on bringing in “young officers, noncommissioned officers and warrant officers” to teach them about artificial intelligence. The course features four to five months of actual learning in the classroom, followed by five or six months working for the Army's AI Task Force. After that, the officers are sent back the force, bringing with them their AI experience. Additionally, Murray is in the early stages of standing up what he described as a “software factory” to try and identify individual service members who have some computer skills, pull them out of their normal rotations and give them training on “basic coding skills” before sending them back to the force. “We're going to need a lot of these types of people. This is just [the] beginning, to seed the Army with the types of talent we're going to need in the future if we're going to take advantage of data, if we're going to take advantage of artificial intelligence in the future,” he said. https://www.defensenews.com/land/2020/05/28/how-army-futures-command-plans-to-grow-ai-skills-in-the-service/