No? EJ-200 is considered squarely a 4th generation engine.
Chinese Engine Development
- Thread starter jackbh
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It’s not. The EJ200 is a peer to the F119 technology wise. T:W ratio of 10 with 5 HPC stages. If the program had received sustained support they could have pushed the engine architecture to a T:W ratio of 11-12.
Based on current information, China's fifth-generation engine, or the next-generation engine of unknown model, refers to a variable cycle engine.
What is this absolute blasphemy?? Take it back. The EJ200's cycle design and load-bearing structure is even more advanced than that of the F119/135.
I wholeheartedly consider the EJ200's underlying philosophy more advanced.
PW is usually pretty conservative with its engineering philosophy when they feel they’ve got a guaranteed marketshare. They only took the swing on GTF for commercial because they were at risk of being cut out of the market entirely.
This philosophy is also apparent in the YF119 vs YF120 during ATFE. Doesn't change what I said (in fact it reinforces my point).
Oh yeah I’m just making a point about how PW probably doesn’t deserve *all* the hype it often gets showered with. My way of agreeing with your point about the EJ200’s merits.
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The official Weibo account of AECC introduced last year's 3D-printed turbojet engine
Model: KD16-3D
Key specifications: 15% increase in thrust-to-weight ratio, 6.5% reduction in fuel consumption, and a 60% reduction in parts thanks to integrated molding technology.
Testing began in 2021, with the first flight and letters of intent expected in 2025, and small-batch deliveries starting in the first half of 2026.
The report also specifically mentioned algorithm-driven automatic topology optimization.
Model: KD16-3D
Key specifications: 15% increase in thrust-to-weight ratio, 6.5% reduction in fuel consumption, and a 60% reduction in parts thanks to integrated molding technology.
Testing began in 2021, with the first flight and letters of intent expected in 2025, and small-batch deliveries starting in the first half of 2026.
The report also specifically mentioned algorithm-driven automatic topology optimization.
This engine is available for export as implied by the OP. It has even got foreign buyer intent(s) last year:
"KP16-3D发动机的核心性能已全面超越国外先进同类产品，赢得国际认可，2025年成功获得意向订单。"
Is it some miltech start up in the states? If so they better add some spy chips in the engines.
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