View attachment 159621
Nothing wrong with what you say, but they did say that 5 years ago... Prototype
You can call the X-36 a prototype as well but in reality the X-36 cannot be compared to a pre-production prototype. These are loosely defined terms but military insiders will work to a general standardised definition.
Take for instance the J-36 prototype or J-50 prototypes. Both are pre-production prototypes with onboard EW and avionics at a level advanced enough for the prototypes to already be equipped with or at the very least, have all the right set ups ready for the actual systems. Both have weapons bays already in the prototypes. The X-36 in comparison is the size of a small car and a VERY scaled down model with zero detail and accommodation or thought to things like avionics, weapons etc. It doesn't even begin to address those details because it is such an early study into the planform shape and general aerodynamics. The equivalent early level "prototype" or better defined as experimental aircraft for J-36 and J-50 would have been done more than 5 years before first full scale prototypes which I doubt the aircraft we see in Chengdu and Shenyang are. The J-36 and J-50 prototype we see have internal weapons bays, full scale, metamaterial stealth coatings already applied, avionics, sensor suites positioned or equipped, things like flexible surfaces applied. All of these things aren't necessary even in a first prototype. All of these indicate near production level. Of course it could still be half a decade before production even at this level. It took over 5 years for later F-35 prototypes to get to LRIP.
By the way the US is defining timelines, CAC's J-36 and SAC's J-50 early prototypes would have been around since early 2010s.
What the X-36 is would represent what those articles are referring to when they talk about NGAD/F-47 "prototypes". They are early tech demonstrators... stuff Chinese equivalents were around since early 2010s when the first hint of 6th gen studies were discussed by CAC representatives. This was before J-20 even made it to LRIP. CAC engineers talked about 6th generation fighter design studies. We didn't make a big deal of that because back then, it wasn't really worth talking about.
NGAD and F-47 have no prototypes. This is from the horses mouth. The US fanboys need to get better at literacy. The US in early 2025 said officially that no NGAD of F-47 prototypes have been made. Flying demonstrators aka tech demonstrators aka experimental aircraft have been flown. This means nothing except these programs exist. The US military reps have always used the term demonstrator when describing what they were testing.
Only recently was Boeing awarded the contract to build a F-47 prototype out of the winning design which was decided in part surely by the tech demonstrator evaluations that the US held.
Depending on the specifics of the J-36 and J-50 prototypes and their position in the development cycle, China is at least 5 years ahead of the US in fielding successors to 5th gen fighters currently in operation.
Boeing is just beginning to work on their first prototype for the F-47. What we see in Chengdu is unlikely to be a first prototype. They shouldn't be flying first prototypes of a relatively important military platform openly in a well populated city. I'm also of the belief that J-20 prototype 2011 also wasn't the "first" full scale prototype of the J-20. They would have made sure it flies somewhere in the desert. China's "Area 51" equivalent probably is in the Gobi.