B-2 Spirit stealth bomber of the USAF. Stealth aircraft are designed to avoid detection using a variety of advanced technologies that reduce reflection/emission of radar, infrared, visible light, radio-frequency (RF) spectrum, and audio, collectively known as stealth technology. Development of stealth technology likely began in Germany during World War II. Well-known modern examples of stealth aircraft include the F-117 Nighthawk, the B-2 Spirit, the F-22 Raptor,and the F-35 Lightning II.
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The Aviationist » Here Are The World’s First F-35A Lightning II Stealth Aircraft With Special Tail Markings
Nations looking to defend against stealth aircraft are examining infrared sensors for their counterstealth application, but U.S. B-2, F-22 and F-35 aircraft have a few tricks up their tailpipes and under their skins.
Chinese Stealth Tech- many think China borrowed fighter technology. I also think it would be foolish not to use proven ideas. Plus if your designs can be taken the only main advantages are strategy and training. This where the majors have the edge.