The topic at hand is the RCS model Kopp uses. It is incomplete, of course, and others have criticized it, but it shows a very interesting phenomenon with regards to the J-20. The J-20 apparently has very poor frontal stealth, roughly speaking, it has a frontal zone, due to canards, of roughly 0 dBsm. However, surrounding this zone is a high stealth region where it has a RCS of -30 to -40 dBsm, giving it adequate stealth provided that it is not headed directly at the target.
The net effect is that if the J-20 detects your emitter, it can change its heading to avoid being tracked, but it has the risk of being detected and tracked by an emitter before it can shake radar lock.
With this kind of configuration, what would be the consequences for air combat in BVR? WVR?
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April 10, 2014 at 6:40 am