I asked you to modify it, what the hell is this fighter jet's engine?

Having transmigrated to a parallel world in the fiery 1960s, he awakened a Bagua-like spatial dimension in his mind. Upon arriving at the machine factory, he immediately obtained a blueprint system. [Complete design blueprints for the F-4 Phantom II fighter jet, Sidewinder missiles…][Design blueprints for the F-14 third-generation fighter jet…] Hearing these two sentences, he immediately decided to develop the military industry! In the 1960s, China's military industry lagged far behind Russia and the United States. He knew that truth only lies on the edge of the sword! Only by strengthening its own military industry could Russia and the United States stop their rampant aggression! With him, China's military industry soared! Second-generation fighter jets, third-generation…