@hawkeye10,
hawkeye10 wrote:We need to understand that the Chinese think that they are very close to defeating stealth technology, and that the Russians are working closely with the Chinese generally.
"Stealth involving a large flying wing" and "stealth involving a traditional airframe" are two very different things.
Much of stealth involves shaping the plane so that the radar signal bounces harmlessly away from the plane instead of directly back at the radar receiver.
Anti-stealth radar involves using wavelengths so large that parts of the plane appear as a single pixel. If a photon sees part of the plane as a single pixel, it doesn't see the shape and thus doesn't know that it is supposed to bounce away from the airplane. With the F-22 and F-35 the weak points are the vertical stabilizers. If you get a wavelength large enough, the vertical stabilizers will reflect back at the radar receiver.
However, there are a couple drawbacks. The first is that with such a low resolution, it is hard to guide a missile accurately. It is likely that with enough computational power it can be done, but so far no one has mustered enough computational power.
The next drawback is that this frequency range is one of the easiest to jam or spoof. It is in the same frequency range that we used for TV channels 2 through 13 back in the analog TV days. Our electronic warfare guys could very well take over the airwaves and play Seinfeld reruns on all the enemy radar screens. Or better yet they could make recordings of fake radar images and play those recordings on enemy radar screens to trick them into firing their missiles at signals that aren't even there.
However, none of the above applies to a large flying wing like a B-2 bomber. With enough computational power someone might be able to make a radar work using a frequency that sees an F-22's vertical stabilizers as single pixels. No one is ever going to make a radar with a wavelength large enough to see the wings of a B-2 bomber as a single pixel.