Intresting Look at J 20 : While no specific analysts have claimed the J-20 used stealth coatings from the 1999 F-117 downed over Serbia, analysts have noted that if Chinese designers used stealth coatings based on the F-117, the result would be decades behind current American state-of-the-art. However, Chinese test pilot Xu Yongling said that the J-20 was a masterpiece of home-grown innovation, and also noted the F-117 technology was already outdated even at the time it was shot down, and could not be applied to a next-generation stealth jet. Janes editor James Hardy agrees that it was unlikely China would have learned much from the wreckage
