The next morning, Li Shuguang and the others went to the wind tunnel laboratory and had a detailed discussion with experts from the wind tunnel base on how to save time and money in wind tunnel testing and obtain necessary data.

Experts were very shocked after seeing the previous computer simulation data of the J-8 II. They did not expect that the J-8 II fighter has reached this point in applying such advanced technology. As a result, tens of thousands of wind tunnel tests were originally required.

Now maybe only two thousand times are enough. How much money will this save for the country?

Another is to greatly reduce the time for wind tunnel testing, speed up the development progress, and also reduce the burden on the wind tunnel base. You must know that there are not many wind tunnels in China, which can allow the J-8 II fighter to conduct tests more quickly.

Few, in addition to this model, there are other models that also need to be tested in wind tunnels, so it seems very crowded and affects the development progress of the model.

Because a large number of wind tunnel tests need to be conducted, Deputy Chief Engineer Li Tian will have to be stationed at the wind tunnel base frequently. However, Li Shuguang has more tasks, so he will only stay for two or three days before going back.

Such a greatly improved air duct requires the manufacture of technical verification aircraft for test flights abroad. For example, the F16 modified the DSI air inlet and conducted more than a dozen test flights. Later, although it was not used on mass-produced aircraft, this technology was used

Transferred to the fourth-generation stealth fighter F35 fighter.

The J-8 II fighter is not suitable for modifying the DSI inlet. After all, it is originally an aerodynamic design for a high-altitude and high-speed interceptor aircraft. The DSI inlet is mainly suitable for stealth aircraft whose speed is no higher than Mach 1.8.

However, if a project is set up to develop the J-8 III fighter next time, the DSI air inlet can be used with a three-sided wing layout. However, the computer design of this air inlet is very complicated, and special design software has to be developed. This technology, even

Neither can Dassault, so even if Li Shuguang wants to do it, it won’t work now.

This time, the wind tunnel test of the J-8 II fighter jet has basically been determined. It will be conducted about 2,000 times, the total number of hours will be more than 200 hours, and the data collected will be more than 10,000. The data in the wind tunnel will be

Test Mach number 2.2.

The chief engineer of the wind tunnel base smiled and said: "Lao Li, please feel free to leave this test to us. I believe your design is very good and there will definitely be no problems. We will just wait for the test results to come out!"<

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Li Tian smiled and said: "I hope so. Our J-8 II project has a tight schedule and heavy tasks, so we have to trouble you to make it for us in the shortest possible time. We are very grateful!"

Zhou Wei smiled bitterly and said: "You also know that the conditions of our wind tunnel base are limited. We can only do our best. This wind tunnel test will focus on the integration of this two-rib air inlet design and the fuselage. Domestic still have

This has never been done before. Different angles of attack and different sideslip angles need to be tested in combination. It is not easy to obtain the dynamic and steady-state characteristics of the inlet and analyze the characteristics of the inlet under different flight conditions!

”

Li Shuguang seemed more relaxed and said: "Mr. Gao, Mr. Li, we don't have to worry too much about this. After all, we don't know if there is any problem now. I believe that the experts at our wind tunnel base will do a good job and test it."

They know much better than us about what the key points are and how to collect and analyze data! There will be no problem."

In fact, Li Shuguang is not worried at all, because this design of the air inlet is indeed the best, and this test will definitely get the best results.

The next test was quickly arranged. Li Shuguang only stayed for two days. Judging from the preliminary data, the design of this air inlet is indeed better than the original plan, with the air intake efficiency increased by more than 10%.

The most important thing is that under different flight conditions, especially when flying at high angles of attack, better results can be obtained than the air inlets on both sides.

After returning to the institute, Li Shuguang was busy leading everyone to design the fly-by-wire flight control system of the J-8 II fighter jet in detail. Although this system is not fully digital, it is still very complicated. However, under Li Shuguang’s guidance

With the blessing of super abilities, everyone worked overtime and finally designed it in the shortest time.

Even the leader can't believe it. It was completed so quickly?

However, this will ultimately require review and acceptance before it can move to the real development stage.

In two days, the acceptance review meeting will be held. At that time, not only the leaders of the institute, but also experts from the Ministry of Aviation Industry and the Air Force will come to Institute 601 to conduct a comprehensive review and acceptance of the system.
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However, an internal review has been conducted in the institute. The leaders all think that this system is very good. It not only achieves a good effect in terms of performance, but also does a very good job in cost control. It is better than the original system.

For mechanical control systems, the cost increase is not much and is within an acceptable range.

After the internal review results came out, Li Shuguang finally breathed a sigh of relief. This phase of work was finally completed. Next, his tasks are still very heavy, and there are many key technologies that need to be broken through.

In the evening, Li Shuguang dragged his exhausted body back to his dormitory. As soon as he lay down, he heard a ding.

The system appeared again, this time the system prompted that he had successfully completed the task of designing a fly-by-wire flight control system for the J-8 II fighter, so he received 500 experience points and a lottery chance.

Five hundred points? It seems that this time it is really much more than the previous two times. Now Li Shuguang's experience value has reached 700 points. He is only a little short of being able to advance to the level of aviation craftsman. This aviation craftsman corresponds to

is the level of system lead designer.

In fact, Li Shuguang is now similar to the system designer in charge. This fly-by-wire flight control system was designed under his auspices.

The lottery is finally about to happen again, and Li Shuguang is praying silently. This time he must win an urgently needed and practical technology.

The lottery wheel started spinning, and Li Shuguang waited for a long time before calling out.

When the pointer stopped, Li Shuguang was still excited because he had picked up a technology this time, which was really good, advanced avionics fire control radar technology.

A large amount of information poured into my mind, just like a thirsty person who drank a lot of water at once. It felt very comfortable. It turns out that the fire control radar technology inside really has advanced pulse Doppler.

Radar, and even more advanced phased array radar technology.

But now, airborne phased array radar technology has just started abroad, and it is still a passive phased array.
Chapter completed!