In the field of aerospace, the most important technology is the aircraft engine. The construction of aircraft engines is often very intricate, even known as the heart of an aircraft, because without an engine, no matter how excellent the other performance of the aircraft is, it cannot fly into the sky. There is a saying that a country's ability to produce nuclear weapons does not necessarily equate to strong industrial capabilities. If a country can produce aircraft engines, especially military high-power aircraft engines, then it can be said that its industrial capabilities are among the top in the world. After all, there are not many countries in the world that can produce aviation engines at present.

The quality of a country's aviation engines often determines the combat effectiveness of its own air force. For example, the United States, which currently has the deepest expertise in aviation engines, has far surpassed all countries in the world in terms of air force combat capabilities. Even China, which ranks behind the United States, is difficult to catch up with, let alone surpass. It can be said that, based on the current situation, the United States will occupy the crown of the strongest air force for a long time with its own aviation engine research and development capabilities. Only when China's aviation engine technology catches up or equalizes the United States, can we possibly surpass the United States in the air force. Otherwise, nothing can be discussed.

Aircraft engines are not a simple discipline, they often require the joint efforts of countless major classifications such as aerodynamics, fuel science, materials science, and high-precision machine tools for processing. It can be said that a country's top technology can be reflected in engines. During World War II, it was precisely because of Japan's inadequate aviation engine technology that it was targeted by high-performance American fighter jets on the Pacific battlefield. If Japan had the same level of aviation engines as the United States at that time, the final outcome of the Pacific battlefield could have been changed. At least the Japanese Navy's joint fleet would not have been easily destroyed by the United States, and the Pacific War would not have ended easily.

China has suffered a lot in the field of aviation engines. Due to engine technology issues, the service life of the J-20 fighter jet was postponed. In addition, there are various problems with the J-10C fighter jet, such as limited production due to the need to purchase engines from Russia, high single unit costs that are difficult for the Air Force to accept. It can be said that the biggest enemy that restricts the development of China's air force is aircraft engine technology. If there is no breakthrough in aircraft engine technology, it will be difficult to change the trend that the air force is inferior to the United States. Although China is trying to narrow the gap in aviation engines by focusing on aerodynamics and other aspects, this is still not as direct as a reliable high thrust military engine. There is a saying that describes aircraft engines: "The engine has a high thrust, and even bricks can fly into the sky. This shows that the discipline of aircraft engines has a significant impact on the overall performance of fighter jets.

In recent times, there have been significant breakthroughs in China's aviation engine technology. The latest developed titanium aluminum alloy can withstand high temperatures of over 900 degrees Celsius, which is much stronger than the highest resistance of high-temperature metals currently in use in the United States. Conservatively estimated, this new alloy can improve the efficiency of China's aviation engines by more than ten points. This alloy will be used to forge key parts such as fan blades and combustion chambers in engines. It has the characteristics of small mass but high strength and plasticity. After large-scale production, it will inevitably change the problem of inadequate materials for aviation engines in China.

Materials science is a key discipline in aviation engine technology. After making breakthroughs in this field, it is believed that Chinese researchers can learn from it and improve the quality of military engines produced in China in a short period of time. At least the WS-15 engine can be compared to the engines currently used in the US F-35 fighter jet. It can be said that this is very good news for China, where aviation technology has always been weak.