I often hear people around me talk about the domestic large aircraft project. On the Internet, the media is always in a storm, and then there is no news.

At present, economic conditions should not be a problem for China’s masturbation projects!

The main bottleneck comes from technical conditions, which include: materials, processes, personnel, technology accumulation, etc.

China is not bad in individual items at present, and it also has technology accumulation. Shanghai’s purchases back then Go to big factories to build MD82, the Airbus assembly plant in Tianjin (including cars), etc. The purpose of building a factory is not to promote employment, but to accumulate technology! At present, the technology accumulation is similar. What is the difference? The difference lies in system integration. Civil aircraft are not high-tech and cannot use high-tech. Civil aircraft pursue high reliability (the opposite of high-tech), economy and safety. ! Civilian aircraft are technology-intensive products, that is, they use many kinds of technologies, but none of them are high-tech! The difficulty is to integrate these many technologies into an autonomous mechanical whole. This is the difficulty!

One is materials. At present, many alloy materials and composite materials used in Boeing and Airbus aircraft cannot meet the requirements of aircraft use. The domestic production processes include the service life of aircraft engine turbine disks and blade materials. , not even good!

Then there is the personnel issue with Chinese characteristics. Technical staff are generally working hard for professional titles, houses, cars, and women. It is inevitable that various departments will fight over each other, so the final results will not be released. A lot of time and money are wasted in the process! !