Chapter 151: J-8ACT
Now, the country has begun to transform to the West, and the development of fighter jets has also begun to be scientific.
For example, the development of the J-8II was undertaken by the 601 Institute and the Shenyang Aircraft Company, and the aircraft development was managed by systems engineering.
The Vice Minister of the Ministry of Aviation Industry is the commander-in-chief of model development, and Mr. Gu is the chief designer. In terms of technology, a four-level responsibility system has been formed: the chief designer of the model, the chief designer of the system, the chief designer and the chief designer, with a clear division of labor and clear responsibilities; The administrative command system is authoritative, and the dispatch and command are unimpeded.
The accounting system implements the model lump sum funding, so that the economic lever plays a role; Quality management runs through the whole process of development. These measures ensure the smooth progress of aircraft development.
With the reform and opening up, the country has begun to continue to glow with vitality, Mr. Gu is full of confidence in this fighter, and at the same time, he is also bent on finding an excellent test pilot to fly, so that this project can be carried out better.
Now, in order to retain Qin Feng, Mr. Gu said the next project, this project is still in the demonstration stage, but the science and technology is the highest.
"What project?" Qin Feng couldn't help but ask.
Mr. Gu sold a pass this time, and did not directly say any project, but changed the topic and said: "Comrade Qin Feng, when you were interviewing in our test flight institute, for a period of time, you have been helping the comrades of the test flight institute to design the stabilizer, right?" ”
Qin Feng nodded: "Yes, we plan to change a J-6, but after the design idea is completed, we will wait for the approval of the superiors, and after that, I will not participate, and I don't know how this project is." ”
After all, the new generation of fighters are controlled by fly-by-wire, and the test flight institute wants to develop this new operation technology to pave the way for the domestic development of third-generation aircraft.
However, it takes a long time for a project to be approved from project approval to approval, and then he was busy with test flight work, so Qin Feng didn't pay attention to it anymore.
Now, hearing Mr. Gu say this, Qin Feng showed his expectation, is there a result?
"At the beginning of this year, the project was approved and officially transferred to the development stage." Mr. Gu said: "This project will be the first telex operation project in our country, and the superior leaders attach great importance to it. ”
"Great!" Qin Feng said that there is a big gap between himself and foreign countries, and now, it is necessary to narrow the gap little by little, and this fly-by-wire operating system is one of the key points.
Now, Qin Feng can't wait to go back to the test flight institute and find Zhang Jinhai to study and study.
"Would you like to test fly this kind of aircraft?" Mr. Gu asked.
"Of course I think so, the flight feeling of this kind of plane is completely different from what we have now." Qin Feng said, after finishing speaking, Qin Feng felt strange, what does this have to do with Mr. Gu? It's as if this project is Mr. Gu's.
"If you want to fly, it's fine." Mr. Gu said: "Our 601 Institute is also planning a project called J-8ACT. ”
Hearing Mr. Gu's words, Qin Feng suddenly became interested: "You mean, let's take the initiative to control?" ”
BW1, called stabilizer, when it comes to stabilizer, we must first mention static stability, and now the aircraft designed are all statically stable, if you take an example, for example, a tricycle, it will not fall when parked, this is stable.
Static instability, like a two-wheeled bicycle, is unbalanced when parked, and only relies on the body to maintain balance when moving.
The fighter is in the sky, if you don't do anything and keep your balance, this is static and stable, and now from J-6 to J-8, it is static and stable.
Some aircraft, on the contrary, are statically unstable, or called relaxed static stability, (such as the third-generation aircraft starting from the J-10.) This kind of aircraft is inherently unstable, so what good is it?
The advantage is that the aircraft is more flexible! Its fuselage structure design is not limited by the center of gravity is much easier, and the torque between the center of gravity and the control surface has also changed, it will bring the dual benefits of structural reduction and maneuverability enhancement to the aircraft, which is a necessary point for the third generation aircraft.
If you want to build this kind of aircraft, you need to have a telex operation.
The BW1 stabilizer is to make the J-6 unstable, and then carry out test flight simulation, while the ACT, which is one level higher than it, is called active control technology.
Active control technology is a way of thinking, according to the process of designing the aircraft according to this idea, in the initial stage of aircraft design, according to the performance requirements of the aircraft, comprehensive consideration of flight control, aerodynamics, structure and engine design and selection, and by giving full play to the initiative and potential of aircraft control, coordination and resolution of the contradictions, so that the aircraft has the best performance; As a result, aircraft control in the overall design of the aircraft, from the original passive role to active action, so it is called active control technology.
To put it simply, active control technology is to use the fly-by-wire operating system to maximize the performance of the fighter.
This is generally used on new fighters, but in terms of domestic conditions, it cannot reach this level for the time being, and it is only possible to modify the original fighters.
One of the prerequisites for the adoption of active control must be that there is already a fly-by-wire operating system, or at least the hardware of such a system, and development can only be carried out on this basis.
As an advanced flight control technology that began to be developed in the mid-70s, the use of this technology can significantly improve flight performance. And in order to develop its own aviation flight control technology and make technical reserves for the third-generation high-performance fighter, it is necessary to develop this kind of active control verification machine!
Now, hearing that this kind of verification machine was going to be developed, Qin Feng immediately felt his heart beat faster, once this technology is completed, then his own fly-by-wire control will be mature, such a challenging task, of course, he is willing to take on it.
"How? Qin Feng, are you willing? Mr. Gu asked.
Insiders speak, it is so concise, Mr. Gu only mentioned ACT, Qin Feng understood something, even if it was Wang Yang on the side, it was not clear at this time, this new technology was really what a young and willing test pilot like Qin Feng was most eager for.
Would you like to? Of course I do!
Subconsciously, Qin Feng seemed to see the three-axis and four-degree digital telex rushing towards him, the J-8 is still the original J-8, but its operating system has been replaced, it is more sensitive, as if it is an eagle spreading its wings in the sky.
In a daze, he wanted to agree, but when the canard layout of the fighter appeared in front of him, he suddenly sobered up.
It's so dangerous, I was almost fooled.