A short lived victory at that, AL-51F-1 is supposedly in low rate initial production and is meant to scale up in 2026. The on going war may delay this reported schedule however. I don't think we can confirm the AL-51F-1 service until it's seen on production Su-57's. This goes for the WS-15 as well, it's all well and good to proclaim production. But until it's physically seen on production models. It's all comparisons between each others words and not proofs. Can we wait before making such grand sweeping statements?
I'm not sure why you believe the AL-51F-1 entering mass production means that Russia has achieved parity with Chinese aero engine tech. Not only is it inferior in thrust numbers to the WS-15 (I know that's not all that matters, but it's still important and one of the few things we can know about the WS-15) and definitely in MTBO, but Russia still hasn't demonstrated a single (to my knowledge) working prototype of a ACE design whereas China is working on two and did demonstrate one.
They're not comparable. Not even remotely close at this point. Russia's only advantage over China currently as high-bypass turbofans, but not because it's technologically superior, but because it arrived to this game much earlier. As others have said above, once China starts mass production its own high-bypass turbofans that are in development/testing as we speak, that advantage will vanish too.
I'm genuinely struggling to think of possible way that Russia could be technologically comparable to China as far as aeroengines go.
