Due to fixed inlets, chances of F-22 having even equal T/W to PAK-FA at M2.0+ is laughable to none.
Even this graph explains it well enough. More than that, all current variable inlets have a ramp at the subsonic section which recovers even more pressure, sometimes even above P0, and went the extra pressure/mass flow via bypass doors.
I don’t think those are simple fixed inlets 😀
There was a breakthrough in the US regarding CFD (new core with coupling equations) ard 2003 as publicized at the time.
Regarding the PAk-FA, tech maturation regarding materials might hve added some limitations to the max Mach that could hve or would be lifted at a time.
Regarding its own inlets, it’s a very clever solution they hve chosen. My guess since the under fuselage photos were released is that it will be highly silly to speak abt straight inlet or non-DSI.
I am with Amiga500 on the overall points of it’s aerodynamics. It’s a fast cruiser, with Ãœber agility in mind (including high Beta) and a peak mach and ultra high alt (with new engines?)-> F22VsPAK-FA cld be somewhat similar to a 21st century version of Mig Alley’s F86VsMig15
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