>>1176634>We don't know what the J-20's radar cross section will beWell, we don't know the F-22's RCS either, just semi-official estimates.
>(the plane is fucking huge, so the cross section is likely huge too)
That's the point of stealth, duh. The B-2 is rumored to have about the same RCS as the F-22 or F-35. The B-1 is supposed to have the same RCS as an F-16. With advanced stealth technology, size doesn't matter much. We know that the chinese have acquired advanced RAM. The current J-20 prototypes show, on the surface, attention to detail that's equivalent to the F-22 or F-35. The intakes have S-ducts. The canopy frame is internal only. From what we can see on the surface with the pictures available, there's nothing that says it can't be as stealthy as an F-22/F-35. There's a few areas like the exhaust that need work, but they're capable of changing it (see that recently leaked pic of a J-10 with a sawtoothed TVC nozzle). The current prototypes have already been refined a lot stealthwise since the first ones, so they're definetely aware of advanced stealth techniques and activrely trying to optimize the RCS.
>Yeah China struggles to make engines suited to 4th generation jet fighters, despite all the Soviet/Russian jets they bought to take apart.For what it's worth, Russian engines are severely lacking as well, compared to western counterparts. China is definetely close to overtaking them on engine tech: Russia has basically been stagnating since the end of the cold war, and only been making extremely slow progress recently, while China has constantly improved significantly.
