H/T to Fringe.
So, the Chinese put on a public display of their J-31 stealth fighter, their knockoff of the US F-22A Raptor.
As Fringe noted, a couple details- one, those RD-93s smoke more than I do. And the roll rate as show was pretty meh. And I would note that the typical US Raptor airshow demonstration displays much more performance in the vertical plane. This was just a zoom climb and a couple of sustained turns.
The real question is how well its avionics and stealth work, and that’s simply not something we can discern from an airshow clip.
Further, it should be noted that China has a large air force, but only a tiny percentage of it is 4th generation fighter aircraft comparable to US equipment.