The US cut off C919 engine technology, and China made an announcement that stunned the White House: This news is great.

According to a report by Reuters on May 29th, the US terminated licenses for American companies to sell products and technologies to Chinese commercial aircraft. The target of this move was the LEAP engine, which is at the core of the C919 large aircraft. This key device, jointly manufactured by GE and Safran, is considered one of the core components of the C919 passenger aircraft. It is reported that the US action is in retaliation for China's rare earth control measures.

Interestingly, the South China Morning Post disclosed on the same day that China has achieved a significant breakthrough in its new generation of self-cooling turbine blade technology. Beijing Institute of Aeronautical Materials obtained a patent in late April, marking a major leap forward in the research and development of jet engine core hot-end components. This new type of blade adopts a unique cooling channel design, enabling it to operate stably in extreme environments far beyond the metal melting point. This breakthrough not only significantly enhances engine thrust and lifespan but also directly serves both military and civilian aviation engine fields - from the J-10CE fighter jet to the highly anticipated CJ1000A civilian high-bypass ratio engine.

The CJ1000A, developed under the leadership of AVIC Engine Group, is precisely the domestically produced "heart" tailor-made for the C919. It is regarded as the perfect replacement for the LEAP engine. This engine project has undergone years of攻关. With this boost of turbine blade technology, it is like being injected with a powerful "booster."

The historical coincidence points are now precisely fixed: when the US attempted to push the C919 into a technical deadlock by "cutting off supplies," China's national aviation industry unveiled substantive results in breaking through the engine bottleneck. This "coincidence" undoubtedly put Washington in a complex situation. Its blockade measures failed to delay the rise of China's large aircraft as intended but may accelerate the process of replacing the LEAP engine with domestically independent products.

The blue sky path of the C919 will inevitably rely on the wings of domestic innovation to fly steadily. The White House decision-makers' "cut-off supply card" will ultimately become a footnote in China's milestone of aviation self-reliance. It used to be the case with steamships, now with chips, and in the future, the engines of the C919 large aircraft will also be like this.

Original article: https://www.toutiao.com/article/1833438985972744/

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