C2473 He Had Ulterior Motives

The development of the engine must have taken place earlier than the whole plane. Only in the Han Country would there be an engine project with an airplane project, which would always drag down the engine.

The Su 27 fighter aircraft in Bear Country had not flown for the first time, and the prototype was still using the Al21 Turbojet Engine. The Al31 Turbofan Engine had yet to come out