C1865 A Gratifying Improvement

This one. The so-called Turbo Fan -13 was actually the Replica of the F404 engine produced by Han Country itself. Because Qin Guan had gotten a full production line, he was the first to break through. Instead, it was this kind of mid-range engine. But now, the Han Country's engine had already formed a complete series.

The maximum thrust of the J-8's previous engine was only five or six tons. Now