Ricnunes: I already know BAE's opinion on the matter and it is far from the 2 sq m figure you have extrapolated from anonymous estimates of Tornado RCS, more on that later. Firstly you really are not getting the analytical point about the EADS detection comparison. Sure they don't know the performance of the APG-81 but they started from the assumption that it was exactly the same as CAPTOR-E which they obviously do know well and assuming golf ball RCS of F-35 (0.001 sq m) you can then derive the low RCS of Typhoon, about 0.02 sq m, from the difference in distances the two detect each other using the Radar Equation. In 1999 BAE published a technical paper on aerodynamic optimization for military aircraft design in which they gave some RCS shape numbers for the Typhoon precursor plane, EAP. Against 3 GHz ground radar (UHF/S/SHF) the design had about -1.5 dBsm RCS (figure 31, p12)* which is under 1 sq m.

1. Eurofighter Typhoon Fighter

This figure would be lower against the standard X-band radar which aircraft RCS are usually quoted on. So on shape alone the EAP has better starting RCS than any teen or 4th gen fighter. So from that starting base you add a serpentine intake duct which covers virtually all the engine fan from a direct head on position. You then make the aircraft 85% of composites and plastics and then you add RAM in crucial places. It is not remotely difficult to then believe that the production frontal RCS of a clean Typhoon is under 0.1 sq m in X-band especially when that was the original RAF specification in AST414.

Eurofighter Typhoon Fighter

RCS considerations were part of Eurofighter design development from day 1, they were just not the major consideration like in F-22/F-35. Well I'm done with this thread, I'll leave banging your head against a wall to others. Just remember, what ever pixie dust number you come up with. The super hornet is smaller and it's a lot bigger than the f-35. So a typhoon at 0.2 Then that has to make the sh 0.09 and the f-35 0.000000001 EDIT ps, you do realise that they were 0.2 is on generic edge shapes and using a generic formula on scatter in the 3GHz.band?

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There wasn't any RAM used. It was testing different radii values on a section of leading edge, not a whole plane.