A quick searched turned up a popular mechanics[1] article about Russian radar and US stealth aircraft, that reinforces what Sprey said. [1] http://www.popularm

A quick searched turned up a popular mechanics[1] article about Russian radar and US stealth aircraft, that reinforces what Sprey said. [1] http://www.popularmechanics.com/technology/military/planes-uavs/russian-made-tech-vs-americas-stealth-warplanes-13506974-2 http://www.popularmechanics.com/technology/military/planes-u...