What? A small designer dares to issue a military order in front of so many leadership experts. This is not a joke.

Therefore, even General Master Gu was moved by it, because he did not dare to speak out about the establishment of a military order easily, but Li Shuguang dared to issue a military order at this meeting. What does this mean? It means that he is really sure.

Ah, then he really doesn’t understand how complicated the fly-by-wire flight control is, or is it that a newborn calf is not afraid of tigers and just opens his mouth to do it?

Chief Commander Gu is more willing to believe that Li Shuguang can do it. If the J-8 II fighter jet can really use the fly-by-wire flight control system, not to mention the digital fly-by-wire flight control with three axes and four redundancies, it is also a single-axis dual-redundancy system.

Very good, the maneuverability can be greatly improved.

Facing Li Shuguang's bold suggestion, leadership experts all started talking about it. Some leadership experts were still skeptical, but some supported Li Shuguang.

An expert stood up and said: "I think the idea put forward by Comrade Li Shuguang can be considered. We must vigorously promote the development of fly-by-wire flight control systems and strive to break through this difficulty as soon as possible and master the fly-by-wire flight control system of third-generation fighter jets."

Technology, then we can do experiments on the J-8 II. This does not affect the overall development task of the model. I think we can give it a try."

Seeing the support of experts, Chief Engineer Gu, as the chief engineer of the J-8 II, stood up and said: "Actually, before the meeting, we had already considered implementing fly-by-wire flight control on the J-8 II fighter. Comrade Li Shuguang's situation I

I know him best. He is young, enterprising, and very talented. I believe that with his participation, we will have no problem developing a fly-by-wire flight control system. I support his idea, and I hope everyone can support him too!"<

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Chief Engineer Gu stood up and spoke for Li Shuguang. It seemed that Institute 601 was indeed somewhat confident, so a leader from the Ministry of Aviation Industry stood up and said: "Okay, I think this matter can be implemented.

Come down and push forward as soon as possible. You, No. 601, can meet with the Flight Test Research Institute and we can work together to solve the problem!"

Chief Engineer Gu is naturally very aware of the stabilized aircraft project. He is also a member of the project, so Chief Engineer Gu said happily after hearing this: "Great, then I would like to thank the leaders for their support first. Our Shenyang Aircraft Factory

We will definitely complete this task resolutely, and we must develop our own fly-by-wire flight control system!"

This acceptance meeting was very successful. Not only did the inlet optimization design plan pass the acceptance inspection, but it also received initial support from superiors to install an advanced fly-by-wire flight control system on the J-8 II fighter. Next, we need to discuss it with superiors.

Specific technical indicators have been determined!

However, before determining the indicators with superiors, a specific report must be formed within No. 601 Institute.

This meeting was quickly held under the auspices of Chief Commander Gu. Of course, the protagonist was Li Shuguang. After all, no one knew more about fly-by-wire flight control than him. So the final result was that, according to the overall tactical and technical indicators of the J-8II aircraft,

Controlling the overall cost increase within

In more than 10% of cases, the J-8 II aircraft will be equipped with a flight control system, which is a four-degree digital control system with full authority in the longitudinal direction, an analog backup electronic control system with two redundant degrees, and a mechanical control system with limited authority in the lateral direction.

The scheme of dual-redundant digital control stabilization system.

After adopting this low-end fly-by-wire flight control system, the maneuverability of the J-8 II fighter will be closer to that of third-generation aircraft such as the Mirage 2000. The most important thing is that it is very cost-effective, and I think the military will not fail to accept it.<

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In this system, under normal circumstances, the flight control computer collects the steering column commands and sensor signals for digital synthesis. Through three-axis control rate calculation, it controls the longitudinal servo actuator and lateral electric steering gear to drive the full-motion horizontal tail, ailerons and

The rudder realizes three-axis control and stability. The lateral mechanical control controls the lateral booster through pull rods, rocker arms and other mechanisms to drive the ailerons and rudder.

Li Shuguang built the overall structure of this system in just one day, which made Chief Master Gu admire his talent in this area. And the designers of Institute 601 were not unconvinced. After all,

No one person in the institute can complete the overall architecture design of such a complex flight control system.

The designers who work on flight control all regard Li Shuguang as an alien. They have been working on flight control for so many years, but they are not as good as Li Shuguang.

Everyone knows how significant it would be if the J-8 II fighter can be equipped with such an advanced fly-by-wire flight control system. This can lay the foundation for future third-generation aircraft, and the performance of the J-8 II fighter can be improved.

It will also be huge.

From the optimized design of the air intake to the architectural design of the fly-by-wire flight control system, everyone has now seen Li Shuguang’s strength and talent, which is indeed impressive.

Just when everyone finally reached a consensus and coordinated talks with the Ministry of Aviation Industry and the military, Li Shuguang set his sights on the J-8 II engine.

You must know that the J-8 II fighter jet is planned to be equipped with an improved turbojet XIII engine, which has high fuel consumption, low thrust-to-weight ratio, and short service life.

Li Shuguang was actually thinking that if this mission was completed, it would be great if he could win a lottery with medium-thrust turbofan engine technology, which would help the J-8 II fighter to be equipped with better engines in the future.

Of course, at this stage, it is still unrealistic to change the engine. After all, the development cycle of an engine is very long, especially a turbofan engine.

The Spey engine is of course unrealistic. After all, it is used by the J-H-7, and the engine size is too large to be installed on the J-8 II. Furthermore, the thrust-to-weight ratio of the Spey engine is too low, and the acceleration performance is not good.

Well, it only has the advantage of saving fuel, so it’s impossible to use it.

If it is to be used, it must be a medium-thrust turbofan engine such as F404 or RD33. Their afterburning thrust is about 80,000 N, which is greater than the thrust of the turbojet XIII engine, which is more than 60,000 N.

Quite a few.

Even the weight of these two turbofan engines is lighter than the turbojet 13 engine. You must know that the turbojet 13 engine weighs more than 1.2 tons.

The most important thing is fuel consumption. The turbojet engine is much higher than the turbofan engine during the cruise stage, which results in a shorter combat radius of the J-8 II fighter. If it is replaced with a turbofan engine, it will be very good.
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This is just like the J-7 fighter jet and the Xiaolong fighter jet. Their combat radius is very different.

Of course, it should be equipped with a turbofan engine, which should be needed by the J-8 III. Sometimes if you step too fast, you will lose your temper, so you have to do it step by step.

The J-8 II has a better air inlet and a fly-by-wire flight control system. If the turbojet XIII engine is modified to be better, the thrust is increased to 70,000 N, and the service life is increased to 700 hours, it will be very easy.
Chapter completed!