Building an aero engine at the beginning

Qi Yin had transmigrated to a parallel world. The ancient countries of this world were still lagging behind in the field of aerospace engines, and they were stuck by foreign countries.

His arrival changed all of this. At the beginning, he created a directional engine, so that the Air Force’s stealth fighters no longer suffered from heart disease.

After that, they began to manufacture military and civilian aircraft. Advanced engines and fighter jets were manufactured one after another.

Looking back, it had already become the world’s number one firearms company.