Chapter 415 Hangfa, grabbed from the core machine
While walking and talking, the three people had arrived at the office of the director of Haiyide.
"No, no, no, Mr. Hai, there is no need to be in such a hurry."
Looking at Hai Yide who was almost impatient, Chang Haonan stopped his plan to hold the meeting in advance:
“After all, it is a national collaboration. The technical meeting of all key members is too large. We can make more preparations. First, let the comrades from other units familiarize themselves with the environment and working mode of 606. This will also make it easier to carry out follow-up work. Work is better than cutting firewood.”
After hearing this, Haiyide immediately stopped turning around, and then his eyes lit up:
"Mr. Chang means... let the comrades from other brother units also..."
< br>And he could hear the implication of Chang Haonan's words.
That is, the other party is preparing to take this opportunity to re-integrate the entire Chinese aviation power industry in a bottom-up manner.
The first step is naturally some details.
Chang Haonan nodded:
"There is no way. Since we want to participate in the same project, we must first unify the working methods. Since the Taihang project is led by the 606 Institute and the 410 Factory, the relevant practices must naturally follow our current There are ways to implement it.”
The industry where 606 is located is generally referred to as the National Development and Research Institute, and there is no need to include the word Shengjing, because in the earliest aviation industry planning, this place was actually the only one in the country. An aerospace engine research institute.
Although a series of events such as the Third Line Project later caused aerospace plants to flourish everywhere, the status of the 606th Plant has never been shaken.
However, if you are not shaken, you will not be shaken. Over the past thirty or forty years, there have been quite huge differences in some specific business methods——
Although China's aviation industry has gradually begun to form its own set of standardization systems with the release and implementation of a series of new national military standard documents, standards are only the most basic thing after all.
Under the same set of national standards, the habits and styles formed by design and manufacturing units that have worked independently for a long time will still be very different.
The most typical example is Sukhoi and MiG, both of the Soviet (Russian) design bureaus.
At the beginning of Project No. 11, Factory 601 and Factory 112, which were already accustomed to MiG aircraft, found that when faced with the design and production data of the Su-27, they found that the drawing numbers and annotations were different. The abbreviations of some professional terms are also different. Even the old comrades who were re-employed took a while to get used to it again.
Fortunately, today’s Sukhoi’s status in the cooperation is not that high, so the completeness and accuracy of the technical documents provided are much improved compared to the previous life, which did not delay too many projects. schedule.
Across the ocean, Boeing, which has just successfully acquired McDonnell Douglas, is facing similar troubles.
At least in terms of the aviation industry, China is not a country with deep pockets and strong technological foundations like the United States and the Soviet Union, so it still has to prioritize concentrating its efforts, unifying working methods, and reducing internal friction.
"Okay, then I will ask the comrades in the institute to familiarize them with the situation in the past two days."
As the director of 606 Institute, Hai Yide was naturally very worried when he heard this kind of thing. Exciting, although this will not bring him any direct benefits, at least he will definitely grow a face.
“Don’t worry about this yet, there is one more thing.”
Chang Haonan quickly stopped the other party.
Firstly, such a large project requires half a day, and secondly, he wanted to determine first what stage the turbofan 10 in 1997 was in:
"It has been more than ten years since the establishment of the Turbofan 10 project. In addition to pre-project research, there should also be some basic design information. Before officially starting work, I want to see what the current situation is."
Since we want to grasp the overall design plan, we must be aware of it.
In the last life, because the entire project was pushed back many times, the records of the research and development work of the Turbofan 10, especially before 2005, were quite confusing. Chang Haonan did not specialize in the aviation industry. As an expert in the history of development, even if he reopened it, he still could not find any valid information from his memory.
I had no choice but to look up some information.
"Is this..."
Hai Yide hesitated after hearing Chang Haonan's request.
The Taihang project is indeed quite special. It has been in a state of being approved but not yet approved for a long time.
Logically speaking, the pre-research work should be completed before the official project is established, but because there is almost no technical foundation, 80% of the time for this already-established project is actually spent on pre-research.
In the remaining 20% of the time, I did a few hands-on designs, but the results were naturally not very optimistic.
Haiyide has been responsible for the management of Kunlun engine before, so it is normal that he is not familiar with this aspect.
“I have to call Comrade Liu Yongquan over. He is the deputy chief designer of the Taihang project. He has presided over the completion of several preliminary design plans so far.”
Haiyi De said and picked up the phone from the table next to him.
After a brief communication, he put down the receiver and looked at Chang Haonan again:
"Let's go to the conference room next to it. It's still not very convenient here."
"I won't go with you. There are still a lot of things to do in the aeroderivative gas turbine project. This section over at the 701 Institute Time is running out. It is said that the Navy suddenly put forward some requirements for the anti-submarine performance of the frigate, so now the gas turbine solution has a high probability of winning, but we need to provide a prototype with full performance as soon as possible.”
Yan Zhongcheng said as he put on the coat he had just taken off and prepared to leave.
"Mr. Yan, don't you want to participate in the Taihang project?"
Hai Yide asked half-jokingly while sorting out the files on the desktop.
"If it weren't for Comrade Xiao Chang, I might really be able to use my remaining energy."
Yan Zhongcheng, who had already walked to the door, waved his hand:
"Now that we have such a capable next generation, It just so happens that my old bones are a bit overwhelmed, so I’d better work on some less intense projects..."
After that, he quickly disappeared around the corner outside the door. "Alas...that's what Lao Yan said, but their gas turbine design room doesn't keep the lights on all day and all night..."
Hai Yide shook his head, and then handed an envelope and two separate pieces of paper to Chang Haonan:
"Your official appointment document is only the original, but we have to keep it in our office. I will give it to you in addition." I made a copy and took it as a souvenir."
"I estimate that there will be no younger model chief engineer than you in the foreseeable future..."
...
Soon, Liu Yongquan and several other key members responsible for subsystem design in the Taihang engine project came to the conference room next to it.
Compared with the paper files of the previous turbojet 14 and J-8C that discussed box counts, the turbofan 10 is much lighter in appearance because of its slow progress and the fact that many technical data have been electronically digitized.
Liu Yongquan quickly opened the laptop he carried with him and spent more than ten minutes opening a series of project files.
They are all design drawings.
But basically they are all cross-sectional drawings drawn with CAD.
Only the front fan and the rearmost nozzle part have completed 3D modeling, but they are still relatively rough.
After all, the entire Taihang project team did not have many manpower at all before, which is normal.
“I’m not afraid of your ridicule, Mr. Chang. We have indeed produced several preliminary design plans before, but the degree of completion was relatively poor. This is the one we started recently and has the best progress.”< br>
Liu Yongquan said as he pushed the computer in front of Chang Haonan with some embarrassment:
“We couldn’t design the earlier ones ourselves until later. They were all scrapped projects. This one was also done before. I got this step after stealing some things from you and borrowing many mature foreign models.”
“It doesn’t matter, I’m just taking a look.”
Chang Haonan is not surprised by this current situation. After all, even the Turbojet 14 had many traces of patchwork before his overhaul, let alone the Turbofan 10.
And he could tell what the prototype of this version of the design was almost at a glance.
"3-stage fan, 9-stage compressor, 1-stage high-pressure turbine, two-stage low-pressure turbine... Is this derived from the GE9 core engine?"
See this When designing, Chang Haonan already basically understood the current stage of the Turbofan 10 -
Although due to the butterfly effect he brought, more advanced designs were adopted in some details, this version overall It is also a replica of the F110 engine.
It is one of the two power sources of F15 and F16.
Liu Yongquan and several other people looked at each other a few times:
“Mr. Chang’s vision is indeed very good, we borrowed it from the CFM56-3 engine.”
They never thought of hiding the overall technical source when designing, but Chang Haonan could accurately judge it after just looking at it for a few seconds, which was really not easy.
Hai Yide originally thought that Chang Haonan would be disappointed when he saw this plan, but after the latter stared at the computer screen for about ten minutes, he nodded with satisfaction:
"It is quite good to start from CFM56 and design to this level."
This is not Chang Haonan's comfort to the other people.
China does not have a ready-made F110 engine for reference.
You must know that the CFM56 is actually one of the engines for the Boeing 737. It is a large bypass ratio turbofan engine. The overall design is quite different from the small bypass ratio turbofan used in fighter jets.
So Liu Yongquan and others actually derived the GE9 core machine from the CFM56, and based on the latter, they came up with a design that is extremely close to the F110.
It's really good.
“However.”
After giving high praise, Chang Haonan shook his head and then changed the subject:
“GE9 core machine and F110 engine are indeed They are all good things, but they are not suitable for our actual situation in China. "
At least not suitable for the actual situation after my rebirth in this timeline - he then added in his heart.
In the last generation, the final version of the Turbofan 10 that was finally installed was derived from this design plan, which is the same parent as the F110.
It’s just that as the changes that Chang Haonan brings to the world increase, and his own ability level (including system level, of course) gets higher and higher, it is no longer easy to directly copy many things from the previous life. Experienced.
"This..."
Liu Yongquan, who was a little excited just now, suddenly became nervous again:
"So this plan..."
"Of course it's not completely worthless. Some details are still remarkable and can even be used."
Chang Haonan stretched out his arm and pulled out a stack of paper from the table next to Haiyide:
>
“But in general, most of the content must be overthrown and restarted. At least, we must create a core machine that is truly suitable for us.”
(End of this chapter)