A 2024 simulation by a research team led by China’s Northwestern Polytechnical University compared the Chengdu J-20 stealth fighter with the U.S. F-22 Raptor in a scenario north of Taiwan. The key twi
NASA’s X-43A remains a landmark in hypersonic flight. In 2004, the unmanned experimental aircraft reached Mach 9.6, or about 7,346 mph, making it the fastest air-breathing aircraft ever flown. Using a