Chapter 415 Aviation development, starting from the core machine
While walking and talking, the three people had arrived at the office of Director 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 and hone the The sword never cuts wood."
After hearing this, Haiyide immediately stopped turning around, and then his eyes lit up:
“Mr. Chang's intention is... to let comrades from other brother units also..."
And he could hear the implication of Chang Haonan's words.
That is, the other party is prepared 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 be implemented in accordance with our existing methods.”
The industry where 606 is located is generally referred to as the National Development and Research Institute for short. There is no need to add the word Shengjing at all, because in the earliest aviation industry planning, this place was actually the only aero-engine research institute in the country.
Although a series of events such as the third-line project later caused aerospace development plants to bloom everywhere, the status of 606 has never been shaken.
However, we have not been shaken. Over the past thirty or forty years, we have also had quite a huge difference 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 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 had differences in drawing numbers, annotations, and the abbreviations of some professional terms. The abbreviations are all different, and 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 the project progress too much.
Across the ocean, Boeing, which has just successfully acquired McDonnell Douglas, is facing similar troubles.
At least in 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 work 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 Institute 606, Haiyide was naturally very excited to hear this kind of thing. Although this would not bring him any direct benefits, at least it would definitely make him look good.
“There's no rush for this, there's 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 you want to grasp the overall design plan, you 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 was not an expert who specialized in the history of the development of the aviation industry. As a result, Even if he reopened it, he still couldn't find any useful information from his memory.
Having no choice but to look up first-hand information.
“Is this...”
Hearing Chang Haonan's request, Hai Yide hesitated.
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 formal 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.
Hayide has been responsible for the management of Kunlun engine before, so it is normal for him to be unfamiliar 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.”
Haiyide 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. The 701 Institute has been a little anxious during this period. 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?”
Hayide asked half-jokingly while sorting 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 projects that are not so intense...”
After saying 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 made an extra copy for you. Take it as a souvenir.”
“I estimate that in the foreseeable future, there will be no model chief engineer younger than you…”
Soon, Liu Yongquan and several other key members responsible for subsystem design in the Taihang engine project came to the adjacent conference room.
Compared with the paper files of the previous Turbojet 14 and J-8C that counted boxes, the Turbofan 10 is much lighter in appearance due to its slow progress and the fact that a lot of technical information has been 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 all are cross-sectional drawings drawn using 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.”
Liu Yongquan said as he pushed the computer in front of Chang Haonan with some embarrassment:
“The earlier ones, we couldn't design them ourselves later on, they were completely useless. This was achieved after we stole some things from you before and learned from many mature foreign models.”
“It doesn't matter, I'm just taking a look.”
Chang Haonan is not surprised by this situation. After all, even the Turbojet 14 had many traces of patchwork before his overhaul, let alone the Turbofan 10.
And he could see 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?”
When he saw this design, Chang Haonan already basically understood the current stage of the turbofan 10—
Although it adopts a more advanced design in some details due to the butterfly effect it brings, this version is generally 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:
“Mr. Chang's vision is really great. 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's pretty good to start from CFM56 and design it to this level.”
This is not Chang Haonan comforting several 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 of 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.
"but."
After giving the high praise, Chang Haonan shook his head and then changed the subject:
“The GE9 core machine and the F110 engine are indeed good things, but they are not suitable for our actual situation in China.”
At least it's not suitable for the current timeline, the actual situation after my rebirth - he then added in his mind.
In the last generation, the final version of the Turbofan 10 that finally achieved final installation was derived from this design plan, which is the same parent as the F110.
It's just that as the changes Chang Haonan brought to the world have increased, and his own ability level (including system level, of course) has become higher and higher, it is no longer possible to directly copy the experience of previous lives in many things.
"this…"
Liu Yongquan, who was a little excited just now, suddenly became nervous again:
“So this plan…”
“Of course it's not completely without value. Some details are noteworthy and can even be used.”
Chang Haonan stretched out his arms and pulled out a stack of paper from the table next to Hai Yide:
“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)
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