C2619 Joint Research and Development

Qin Guan had to be careful with his words. He might be joking, but he had already taken it seriously.

Of course, Qin Guan remembered that on some occasion, he had proposed the idea of the sky fighter aircraft. It seemed that the theory he had proposed at that time was to use a supersonic transport aircraft to carry a camel into the tracks. In the end, Elder Soong had taken it seriously