China’s 6th-Generation Fighter Jets With Tailless, Tri-engine Design Spotted in Test Flights Reports and leaked visuals suggest China may be flight-testing an experimental 6th-generation fighter concept featuring a tailless airframe and an unusual tri-engine configuration—a radical departure from current 5th-generation designs like the J-20. Why this design is significant • Tailless configuration → drastically reduces radar reflections, improving stealth • Tri-engine layout → may support higher