We have designed the Eurofighter with a number of radar cross-section reducing measures. We have locally inserted some material, some shaping to reduce the front radar cross-section of the aircraft.
We can do more. We have provisions for adding additional material; however, this would significantly penalize the performance of the aircraft. In the equation, we were referring before to survivability being the product of the capability of not being detected and the capability to survive or to escape once you have been detected. We reckon our design has been optimized to achieve the best possible survivability.