What will happen if new genration of radar cracks or prevail the design and coating of full stealth design aircraft? Which means all the massive time and finance spends on this type of aircraft immediately deem them useless. I mean the new generation of radar is capable of detecting a F-22 raptor as clearly as a F-15 in same range,what will raptor offer of the advantages besides supercruise and TVC? Besides ,full stealth aricraft r usually 3-4 times more ex than a conventional aircraft...It is not feasible to quickly re-engineer the stealth aircraft structure to counter the new generation radar as it will proves too costly. Therefore,shall we concentrate on new radar or concentrate on designing a new concept full stealth aircraft?