Siheyuan starts from a better life

Chapter 978, Boss

Jiang Yan would never have thought that he could still attend such a high-level and confidential meeting after leaving the scientific research industry for such a long time. When someone came to pick him up, he was completely confused.

However, when he followed the person who brought him here and saw his son and leader, he realized that all this was caused by himself, but he had to complete what he had to do even with tears.

Bigwigs from the aviation system came to the venue one after another. Jiang Yan was quite familiar with some of them, so they brought their sons forward to say hello. When they knew that Jiang Zihan was their son, they praised him. The only thing they didn't understand was Jiang Yan's decision to go into the sea, but Jiang Yan didn't explain it.

The meeting officially began at 7 a.m. Minister Wu selected Jiang Yan's award, and Jiang Yan generously went on stage to talk about his design ideas for developing the Z-7FM. Many other experts inevitably asked questions, and Jiang Yan also answered their questions. With the joint efforts of the experts, the plan for the Z-9FM became more perfect, and it was even produced based on Jiang Yan's previous design. In the end, without Jiang Yan's expectation, this aircraft was designated as the Z- aircraft and was manufactured by Shengjing Airport.

After the meeting, Jiang Yan came out feeling dizzy. He had never imagined that he had created the Zhan-7FM aircraft of later generations on a whim, and it was directly defined as a new model.

You know, there really was such a Z-9 aircraft in our history. This aircraft was developed by Chengdu Airport. According to public information on the Internet in later generations, the J-9 is 18 meters long, weighs 13 tons, has a maximum flight speed of 2.6 Mach, a practical ceiling of 26000 meters, a combat radius of 1000 kilometers, and a radar detection distance of 70 kilometers.

The Z-9 is a major modification of the MiG-21 fighter. It adopted a belly or side air intake scheme and a novel canard aerodynamic layout, which was a world first at the time. The world's first fighter to adopt a canard layout, the Swedish Viggen, was not actually put into service until 1971.

However, this is often a beautiful idea, but the reality is indeed quite cruel. The reason why the Z-9 aircraft was cancelled was because of the limitations of my country's overall aviation technology at the time. When the Chinese Air Force developed the Z-9 fighter, there were not many technologies to learn from. However, thanks to the early 60s, my country had obtained a full set of technical data on the MiG-21 fighter from the Russian Bear, which provided important technical support for the development of the Z-9.

The development of this aircraft encountered many subjective and objective obstacles. The subjective reason was that the technical strength of China's aviation industry at that time could hardly meet the design requirements of a high-performance fighter like the Z-9. The objective reason was that the design requirements of the Chinese Air Force for the Z-9 fighter were changed many times. On the basis that the technology was difficult to meet the requirements, the technical indicators of the Z-9 fighter were repeatedly improved, which made the development of the Z-9 fighter increasingly difficult.

The technology did not meet the requirements, which led to the eventual cancellation of this fighter jet. This is also a regret in the hearts of military fans in later generations.

However, although the project was eventually discontinued, the accumulated technical accumulation was adopted by many later models. Therefore, the position occupied by the J-9 in the Air Force fighter models will be retained forever, and the original research and development team made an indelible contribution to the later aircraft.

The later Zhan-7FM is the same as the historical Zhan-9 aircraft, which is also a major modified aircraft based on the MiG-21 aircraft, but one is high altitude and high speed, the other emphasizes maneuverability, one is heavy and the other is light, but there are differences and similarities. Of course, Jiang Yan basically selected the technologies that the country has already formed, so there are no difficulties. This is also the reason why it was unanimously passed at the meeting, but it was named Zhan-9 aircraft, which is a bit heavy.

"Comrade Jiang Yan, hello, I am Xiao Song, the secretary of Minister Wu. The minister would like to invite you over." While Jiang Yan was in a daze, Xiao Song, the secretary of Minister Wu, found him. Hearing that the minister was looking for him, Jiang Yan followed him to a small meeting room. After pushing the door open and seeing the people inside, Jiang Yan was obviously stunned. There were not many people in the room, only four people. One of them was Tu Lao, the chief designer of the Zhan-9 aircraft who had just been appointed. Jiang Yan had seen him several times when designing Wu Ye before, and he was very familiar with him. However, when he suddenly saw him, Jiang Yan was still a little stunned. Compared with before, it was obvious that he had aged a lot.

Jiang Yan knew the other two people without Minister Wu's introduction. As a pseudo military fan, he was quite familiar with these two people. One was Mr. Gu, the person in charge of the Z-8, and the other was Mr. Song.

Especially the third-generation aircraft Z-10 presided over by Mr. Song. This aircraft is of milestone significance. Its appearance has enabled our country to smoothly step into the threshold of the third-generation aircraft, greatly enhanced our national defense strength, and enabled our country to break through the original bottleneck.

The design of the Z-10 aircraft solved two major difficulties in my country's aircraft design.

The most important of these is the canard aerodynamic layout, which can take into account both high speed and high maneuverability. However, in order to implement this complex aerodynamic layout in the aircraft's appearance design, it is necessary to optimize the design through a large number of wind dynamic tests.

To this end, my country has built Asia's largest wind tunnel complex deep in the mountains. After tens of thousands of wind tunnel tests, the canard layout was finally determined.
This largest wind tunnel complex in Asia has played a key role in the development of new fighter jets in my country. Even the canard layout we see on the Zhan-20 today is derived from the Zhan-10.

The other is the fly-by-wire flight control system. The principle of the fly-by-wire flight control system is to use computers to control the aircraft to perform complex maneuvers through electrical signals. This is also the key to the high maneuverability of the third-generation aircraft.

This system was completely new to my country at that time. The designers started from scratch and after several years of hard work, they finally figured out the entire design process of the fly-by-wire flight control system.
my country's aviation level will always remain in the era of second-generation aircraft, and the high-maneuverability flight of the current Zhan-20 and Zhan-16 will not be possible.

In addition to breakthroughs in key technologies, the most valuable asset that the Zhan-10 has left for my country's aviation industry is the training of a large number of technical talents. The chief designer of the Zhan-20 is Song Lao, the former chief designer of the J-10, and other key talents have also played a key role in other major projects. It can be said that through the development of the Zhan-10, my country's aviation industry has undergone a revolutionary industrial upgrade. It was from the Zhan- that my country's aviation industry really began to stand at the forefront of the world. So Jiang Yan, who knew these people, had great respect for them. When he suddenly saw these big guys, Jiang Yan was a little stunned.

"What are you daydreaming about? Come in and sit down." Minister Wu spoke when he saw Jiang Yan standing at the door in a daze.

"Oh, okay, I'll be right there." Jiang Yan hurried into the room, found a seat and sat down. He looked a little cautious, not sure what Minister Wu meant by asking him to come over.

(End of this chapter)