China's Chengdu J-20 fighter jet, which made its public debut at China’s Zhuhai Airshow last week, cuts an imposing, even frightening, figure. The supersonic, twin-engine fighter and attack aircraft packs advanced radar and sensor capabilities, with a 360-degree helmet display system that allows the pilot to see through the aircraft itself. It boasts the same kind of stealth technologies the US Air Force has been honing for decades. And it’s bigger than the F-22 Raptor it rivals, so it can carry more fuel and more weapons, extending its lethality deep into enemy territory. The jet’s debut generated ripples of panic across the globe in the wake of its boisterous exhaust. Can this plane best the best of Western stealth tech, the F-22 Raptor and F-35 Joint Strike Fighters?