Trial production: refers to the development of new processes, new technologies, new raw materials and new equipment, and the preparation for industrial production of new products with "utility model patents";
Pre-research generation: refers to the generation that uses the existing basic theories to support and develop new products with market prospects and "utility model patents" and is ready to produce new products;
Exploration generation: refers to the generation of brand-new products with market prospects and "invention patents", including exploring new basic theories, developing new processes, new technologies, new raw materials and new equipment.
The development of weapons and equipment in China has always taken the road of "equipping one generation and pre-researching the next generation". Although the development of vector aviation has just started, a new generation of engines should be put on the agenda to provide more choices for China fighters. Recently, there are more and more news about the sixth generation machine. It is possible that the sixth generation aircraft will come out soon, and the development of variable cycle aviation will inevitably play a vital role in the next generation of fighters. I hope China can develop it as soon as possible.