C919 airliner
Previously, the good news from China's airlines, the engine of the C919 passenger aircraft independently developed by China has ushered in a major breakthrough, it is said that it is more advanced than the engines of Western countries, and it is no longer necessary to envy the United States in the future, nor do you have to look at the faces of others. C919 Chinese large passenger aircraft, fuselage length of 38.9 meters, wingspan length of 35.8 meters, cruising speed of Mach 0.78 ~ 0.8, cruising maximum height of 12100 meters, maximum range of 5555 km, maximum load of 20.5 tons, passenger seats 158 ~ 168 seats.
CJ1000A engine model
CJ-1000A engine is also known as the Yangtze River 1000A engine, because they belong to China's independent research and development of the Yangtze River engine series, and this series has a total of three models, they are: Yangtze River 1000A, Yangtze River 2000 and Yangtze River 500 engine, of which the Yangtze River 1000A engine is the domestic engine used with the domestic airliner C919, the maximum thrust of a single unit can reach 13 tons, and it is also called the "domestic heart" of the C919 passenger aircraft and the Chinese airliner. Last year, the CJ-1000A engine has passed the fatigue assessment and other options, and is about to enter the installed assessment stage, which also shows that it is one step closer to practical application.
What is most important in an engine? Of course, the blade is the most important, if the semiconductor is the "heart" of the high-speed rail, the engine is the "heart" of the aircraft, then the blade is the "heart" of each aircraft engine, a good blade can not only maximize the performance of the engine, but also greatly improve the service life of the engine, the blade is not only one of the most important components in the engine, but also its manufacturing difficulty is also one of the most recognized components in the world, it is worth mentioning, In October 2019, the scientific research team led by Professor Chen Guang of Nanjing University of Science and Technology in China not only successfully overcome the manufacturing problem of titanium-aluminum single crystal alloy blades, but also successfully broke through the production process of core materials of blades, which greatly improved China's scientific and technological development in the field of aircraft engines.
Not only that, the data pointed out that the domestic CJ1000A engine in the equipped with a new titanium aluminum alloy blade independently developed by China, in addition to being able to continue to operate at a high temperature of 900 degrees, but also made the overall weight of the airliner drop by 200 kg, compared with the imported aircraft engine, the domestic is not only more durable, more heat-resistant, lighter, but also cheaper, the most critical is still 1 to 2 grades higher than the same type of products produced in the United States, and the lower weight also means that the speed is accelerated. The reduction in weight also represents a reduction in fuel consumption, high range, high efficiency, low fuel consumption, this advantage is that imported aero engines can not be compared with domestic production.
This not only laid a solid foundation for China's aviation industry, but also greatly broke through the Western scientific and technological sanctions in the field of China's aviation, at the same time, it is also telling the West, although, you can use your technical advantages to suppress and encircle China's products, but you can never suppress the heart of the Chinese side, nor can you encircle the wisdom of the Chinese people, with the improvement of national strength, the development of science and technology, China's shortcomings are also constantly decreasing, all kinds of science and technology are also constantly being born, with the advancement of time, China will eventually become a scientific and technological power, A scientific and technological powerhouse.