My RCS estimates on KF-21. Basically much improved compared to what i did years back.
Conclusion is basically, the current KF-21 met what was envisaged by the Korean designer for Block I. a "reduced RCS" or "Semi-stealth" design.
2 Configurations (clean and armed) are compared with some 4 and 4.5 Gen.
The "real stealth" one would be the Block 3 but that would still be years away. This B1 and later B2 is for maturations, gaining operational experience and to mitigate development risks for subsequent blocks.
Conclusion is basically, the current KF-21 met what was envisaged by the Korean designer for Block I. a "reduced RCS" or "Semi-stealth" design.
2 Configurations (clean and armed) are compared with some 4 and 4.5 Gen.
The "real stealth" one would be the Block 3 but that would still be years away. This B1 and later B2 is for maturations, gaining operational experience and to mitigate development risks for subsequent blocks.