Chapter 76 Pay attention to 1 engine (additional update for leader flankerr

After parting ways with Zhou Shuwan, Chang Haonan didn't wait too long when he saw Du Yishan and Liu Zhenxiang coming from the stairs carrying things.

The three of them walked into Du Yishan's office together.

"Xiao Chang, I heard Yang Fenghao tell me two days ago that just over a month ago, you helped them find a hidden danger in the overall design?"

The two academicians are both people within the aviation system, and are directly or indirectly involved in the 83rd Project, so they can naturally talk about this issue.

"Yes, about the issue of steering efficiency." Chang Haonan nodded: "But it's not difficult to solve."

This is his contribution made openly, and there is nothing to be ashamed of.

"Isn't it difficult to solve?" Du Yishan and Liu Zhenxiang looked at each other: "I heard that the 601 Institute has revised the overall design once, and is even preparing to build a new full-state prototype for this purpose. This news is Not small."

"Oh, this is because Senior Sister Yao and I made some other modifications to the aircraft, especially to improve the aircraft's operating performance at large elevation angles at subsonic speeds..."

Chang Haonan then spent a few minutes to briefly explain the work he had done at the Institute of Computing Technology of the Chinese Academy of Sciences in the past twenty days.

After listening, Du Yishan looked at Chang Haonan sitting on the sofa opposite and fell into silence.

Even though he has a lot of life experience, he still doesn't know what to say when faced with this situation.

He suddenly felt that language was such a weak thing that he could only express his current mood through silence.

In the past, program improvements like this were basically measured in years, or at least in months.

But since accepting a student like Chang Haonan, the unit "Tian" seems to have become more common.

You can even occasionally see counting in hours...

"Ugh……"

"Ugh……"

Two almost identical sighs sounded at the same time.

Du Yishan glanced at Liu Zhenxiang, and it could be seen from the latter's expression and eyes that he had the same idea as him.

"The waves behind the Yangtze River push the waves ahead..."

But this sadness only lasted for a moment.

Both of them know very well that at their age, no matter how high their hats are, they are already at the end of their scientific research careers.

The future must belong to young people like Chang Haonan.

The youth is strong, the country is strong!

After a long period of silence, Du Yishan finally spoke again, but this time it was a different topic:

"Xiao Chang, from your perspective, do you think the August 3rd Project can make breakthrough progress before the end of this year?"

"Breakthrough progress..."

Chang Haonan was keenly aware that this problem was unusual.

So he did not choose to answer immediately, but thought about the general situation of the entire August 3rd Project - not only what he knew now, but also what he learned in his previous life.

Neither academician bothered him verbally.

After a few minutes, Chang Haonan raised his head again:

"I think if we just talk about the J-8-3 aircraft, we should be able to make a relatively optimistic progress this year."

"In fact, the design of the Eighty-three Project is already very complete. The only risk lies in the imperfect turbojet 14 engine."

"Although the test flight progress of the full-state prototype has been delayed to a certain extent due to the major modification of the wing, through my previous work, I have basically figured out the situation of this aircraft, which can be fully solved through calculation and simulation. Obtain more precise test flight conditions and improve test flight efficiency.”

"Considering that there are still more than four months until the end of the year, it may still be difficult to finalize the design, but it should not be a problem to complete the test flights of the main subjects."

After listening to Chang Haonan's analysis, Du Yishan raised his hand and touched his temples:

"You just talked about the J-8-3 aircraft. Does that mean you think there are other parts that may have problems?"

"Well... then of course it's an airborne weapon." Chang Haonan thought for a moment and replied:

"I heard from comrades in the 601 Institute that the progress of imitating the Thunderbolt 11 is not optimistic, and the number of Aspad imported from Italy is very small. If this is the case, even if we have a new fighter jet, we will still face problems. There is an organic and inelastic situation.”

The field of airborne weapons and ammunition is an almost completely unfamiliar part to him. Although everything is possible with the system, his energy is limited after all, and it may be difficult to spare in the remaining more than 100 days of this year. Take the time to think about air-to-air missiles.

"Is that what you think?"

"That's right." Chang Haonan's tone was full of confidence.

At this time, Liu Zhenxiang, who had just been listening silently, suddenly interrupted:

"Regarding the situation of Turbojet 14, Xiao Chang, you can do more snacking after you go back to 601 this time."

"Appreciate further details."

Chang Haonan cheered up instantly.

As a leading figure in the field of aviation development in my country, although Liu Zhenxiang has not directly participated in the turbojet 14 project, his judgment is obviously very valuable.

"On this matter, speaking of which, the progress of my work is a bit slow."

Liu Zhenxiang's tone contained a hint of self-blame:

"When the turbojet 14 was being designed overall, the high-altitude platform at the Turbine Research Institute was still in the development stage and its functions were not perfect, so there was no condition for comprehensive ground testing, especially in the absence of complex air intake conditions at high Mach numbers. test data.”

"Although the turbojet 14 has not had any serious accidents on the J-8-3 in recent years, both us and the 606th Institute are still a little worried."

"I heard Lao Du say before that you have also done some research in the field of flow channel simulation of impeller machinery. Originally, even developed countries in Europe and the United States highly rely on testing and experience in this regard, but I think if you come here If you do, you might find something."

Obviously, Chang Haonan's previous brilliant experience in the MA-60 and projects gave Liu Zhenxiang full confidence in him.

"Is that so?"

After listening to Liu Zhenxiang's explanation of the ins and outs, Chang Haonan immediately felt a little unable to sit still.

"Teacher, I'm going back to Shengjing early tomorrow morning!"

Originally, he chose to go back to Beijing Airlines to rest for a few days. A big reason was that he felt that there was nothing urgent to do in the future. But now that he has a goal, it is not appropriate to stay in the capital anymore.

"Okay, I'll prepare a ticket for you tomorrow."

Du Yishan nodded. When he heard Liu Zhenxiang talk about the engine problem just now, he knew what his student would do next.

After that, he stood up and walked to a cabinet in the corner of the office. He opened the cabinet door and took out a brand new black computer bag and handed it to Chang Haonan:

"This was purchased from abroad some time ago. It is the latest model this year. It can be regarded as an undergraduate graduation gift from me, the teacher, in advance."

Chang Haonan unzipped a corner of his computer bag and looked down.

ThinkPad 560.

The pioneer of portable thin and light notebooks.

Of course, this is all from the perspective of 1996.

The weight of 1.9kg and the thickness of 3cm are quite exaggerated in this era.

If this was another gift, Chang Haonan might choose to refuse.

But he really needs a laptop of his own.

"Then thank you, teacher."

"It doesn't matter. If you can use it to make more contributions to scientific research, that will be the best thank you to me."