Russia does not have a 5th generation engine core in even the validation phase.
China has a 5th generation engine core the WS-15, it has not only passed validation but is currently in mass production.
A true 5th generation engine core allows true supercruise
You can see the gap between the F-22, J-20 and Su-57
The F-22 supercruises from mach 1.5 -> mach 1.8 (This is because they have 5th gen engines, and is it burns its fuel stores)
The J-20 supercruises at mach 1.4 -> mach 1.8 (This is because the J-20 has a much larger internal fuel load, vs the F-22 as it burns this fuel it speeds up)
The Su-57 super cruises at mach 1.3 -> mach 1.5 (This is because it has a 4th gen engine, the actual 5th gen engine intended to power the SU-57 is stuck in development hell the Izdeliye 30 (or AL-51F1) so Russia put a souped up 4th gen engine inside the SU-57 the AL-41F1 which is the same core as the AL-31F. If they do complete their 5th gen engine the SU-57 is expected to supercruise at mach 1.8-> mach 2.0 as it burns up its fuel. Su-57 accepts more stealth penalties in exchange for superior aerodynamics.
Russia does not have a 5th generation engine core in even the validation phase.
China has a 5th generation engine core the WS-15, it has not only passed validation but is currently in mass production.
A true 5th generation engine core allows true supercruise
You can see the gap between the F-22, J-20 and Su-57
The F-22 supercruises from mach 1.5 -> mach 1.8 (This is because they have 5th gen engines, and is it burns its fuel stores)
The J-20 supercruises at mach 1.4 -> mach 1.8 (This is because the J-20 has a much larger internal fuel load, vs the F-22 as it burns this fuel it speeds up)
The Su-57 super cruises at mach 1.3 -> mach 1.5 (This is because it has a 4th gen engine, the actual 5th gen engine intended to power the SU-57 is stuck in development hell the Izdeliye 30 (or AL-51F1) so Russia put a souped up 4th gen engine inside the SU-57 the AL-41F1 which is the same core as the AL-31F. If they do complete their 5th gen engine the SU-57 is expected to supercruise at mach 1.8-> mach 2.0 as it burns up its fuel. Su-57 accepts more stealth penalties in exchange for superior aerodynamics.