This is the power upgrade version of the kb series. It is replaced with a new adaptive cycle engine, which makes it more powerful. As the predecessor of an excellent land licker, it has good low-speed performance and good high-speed performance after replacing the engine. The surging power means it can carry more weapons. It is well known that fear comes from lack of firepower. It can eliminate all your fears. This version has good maneuverability after many modifications to the fuselage and power. At the same time, through the redesign of avionics system and cockpit, you can drive it more comfortably. This is the first technology verification machine. You can use it as a shuttle machine when you are free