Set sail1992

Chapter 892 He Is Really Sure

No wonder Guo Jianguo is so excited, because in his view, or most of the leaders of the Air Force, Huateng Industrial Group dared to imitate the D-30KP-2 engine. Huaxia is still unable to produce any aero engine with a thrust exceeding 100KN, whether it is a turbojet or a turbofan, whether it is for military or civilian use, it will not work!

Some brothers said that there is still "Taihang", but don't forget when did "Taihang" serve?

At this stage, the engine with the largest thrust that can be mass-produced by Huaxia is the turbojet-8 mounted on Liuye, with a maximum thrust of 93 kN, and the turbojet-8 can only be said to solve the problem of our country's thrust level. The problem of "yes" or "no" of aero-engines, as for the overhaul cycle and fuel consumption... can only be said to be difficult to describe.

It was also after the Il-76 was equipped that the leaders of the Air Force felt: the turbofan engine is really fragrant and fuel-efficient. When will we be able to have our own high-thrust turbofan engine?

But now, hearing Zhang Qihang say that Huateng Industrial Group is not only willing to imitate the D-30KP-2 turbofan engine, but even improve it, the excitement in Guo Jianguo’s heart can be said to be more doubtful: you are bragging to me X right?

Looking at Guo Jianguo, Zhang Qihang smiled and said, "Leader, of course I have my own reasons for saying that."

Guo Jianguo raised his eyebrows: "Oh?"

Implicit: What reason do you have?Tell me?
Zhang Qihang said: "Coincidentally, among the aero-engine experts that our group has hired from the former Soviet Union over the years, several are from the Soloviev Design Bureau of the former Soviet Union, and even participated in the D-30KP-2 engine development back then. The development of..."

Before Zhang Qihang finished speaking, Guo Jianguo's eyes widened uncontrollably: There is such a thing?

He already had a hunch that maybe Zhang Qihang was not aimlessly, he was really sure to improve the D-30KP-2 engine.

Looking at Guo Jianguo's expression and reaction, Zhang Qihang smiled slightly in his heart, and then said: "I am a military fan, and I know a little about engines. When everyone is free, they will talk about some military affairs of the former Soviet Union. Equipment, of course, some secret-related things will definitely not be said, and everyone is talking about things that can be said..."

Hearing what Zhang Qihang said, a thought suddenly rose in Guo Jianguo's heart: Could it be...

没有让郭建国失望，张起航说道：“很巧，我们聊过伊尔-76运输机上面装备的D-30KP-2这个发动机，还用这个发动机与米国空军C-141运输机上的那台TF33-P-7发动机进行过对比……”

Hearing what Zhang Qihang said, Guo Jianguo couldn't care less about being reserved, and quickly asked, "Mr. Zhang, what's your point of view in this discussion?"

“我的意见是，虽然TF33-P-3的推力相对与D-30KP-2确实是小了些，当相比于D-30KP-2，TF33-P-7的自重更轻、油耗更低，是一台比D-30KP-2更优秀的100KN级别的军用涡扇发动机……”

Guo Jianguo nodded. Although the thrust of TF33-P-7 is only 93KN, not 100KN, the difference is not too big. He said that this engine is a 100KN turbofan engine, but it can barely pass the test. He quickly asked Said: "What did the experts from the Soloviev Design Bureau say?"

"At that time, the old experts from the Soloviev Design Bureau were very unconvinced," Zhang Qihang said with a smile:
"These old experts told me that the D-30KP-2 was after all a turbofan engine developed by the Soviet Union in the early 70s. 36T and PS-18A are engines with more advanced technology, larger bypass ratio, and more fuel-efficient engines. Now let’s think about D-90KP-30. In fact, there are still many places that can be modified for this engine.

For example, the fan of the D-30KP-2 engine adopts a three-stage fan design. The fan replaced the previous heavy three-stage fan. At that time, several old experts from the Soloviev Design Bureau assured me that at least 5% of the aviation fuel could be saved by just changing the fan. At the same time, reduce the weight of the engine by at least 150 kg.

In addition to the front fan, the rear low-pressure turbine and high-pressure turbine system can also be properly optimized. According to the experts at the time, the original structure and components of D-30KP-2 can be retained to the greatest extent. Under the premise, the thrust of D-30KP-2 can be increased from the current 15KN to 135KN. At the same time, the take-off fuel consumption can be reduced from the current 0.51 to about 0.42, and the high-altitude cruise fuel consumption can also be reduced from the current 0.71 to about 0.65. ...In general, the overall fuel consumption can be reduced by 15%. "

Why did Zhang Qihang dare to say that?
Because this is the data of the D-30KP-3 engine produced by the "Lyurika-Saturn" complex.

At this point, many friends may ask: When will another D-30KP-3 come out?

Of course not now, but it will be in a few years. After the new century, our air force is very satisfied with the performance of the Il-76 transport aircraft, so we discussed with Lao Maozi and planned to purchase a batch of Il-76. At this time, The "Lurika-Saturn" aero-engine production complex responsible for providing engines for the Il-76 transport aircraft has developed a new version on the basis of the D-30KP-2: D-30KP-3.

D-30KP-3 applies the latest technology and design concepts, replaces the bulky three-stage fan design of D-30KP-2 with a newly designed one-stage fan, optimizes the blades of the low-pressure compressor, and increases the bypass ratio From 30 of D-2KP-2.42 to 3.6, the diameter of the fuselage has been expanded from 1455mm to 1662mm. While the maximum thrust has been increased from 125 kN to 135 kN, key technical indicators such as fuel consumption level, noise level and overhaul cycle have all improved. It has been improved. It can be said that through these improvements, the "Lurika-Saturn" aero-engine production complex has modified a turbofan engine with a low-to-medium bypass ratio at the technical level of the 70s into a turbofan engine at the technical level of the 90s. medium bypass ratio turbofan engine.

但这还不是最牛的，最牛的地方在于，D-30KP-3与D-30KP-2有75%的零部件是通用的，甚至可以直接在D-30KP-2的基础上选择将发动机升级至D-30KP-3，升级费用为84万美元。

And this set of plans is not just a set of paper data used by old men to fool people. The "Lurika-Saturn" aero-engine production complex launched this plan in 02, and it was completed in 05. The engine has been tested on the ground, and this engine has participated in the Russian air show many times. Even in 2020, go to the official website of the "Lurika-Saturn" production complex to check, and you can also check the D-30KP-3 Information and data for this engine.

Unfortunately, because the D-30KP-3 engine used the Il-76 project to “moot” from China, the traces are too strong, so in the end we signed the purchase agreement with Russia for the batch of Il-76 transport aircraft. D-30KP -3, if you choose the D-30KP-2 that we are more familiar with - here is one more word, because in the few years after the signing of the agreement, Lao Maozi broke his promise and raised the price several times. The agreement was ultimately scrapped.

当初张起航与前苏联索洛维耶夫设计局的那些专家们聊天的时候，就接着聊天的机会说出了曾经的D-30KP-3方案，而又因为那些在华腾工业集团工作的钱索洛维耶夫设计局的老专家们对D-30KP-2实在是再熟悉不过，都觉得张起航的这个方案确实是可行，当时还兴致勃勃的认真设计过如果将D-30KP-2升级为D-30KP-3……

But now, Zhang Qihang took out the D-30KP-3 plan of the "Lurika-Saturn" aero-engine production complex in advance, and Guo Jianguo was really stunned.

He is sure!

He is really sure!
Hearing Zhang Qihang's explanation of the improvement plan of the D-30KP-2 engine, Guo Jianguo screamed in his heart, and the excitement in his heart was almost uncontrollable. Suppressing the excitement in his heart, Guo Jianguo said: "So, you Are we really sure that we can improve D-30KP-2?"

Zhang Qihang nodded and said: "I dare not say that I am 100% sure, but we have indeed discussed this plan very rigorously, and even used our group's large-scale computer to conduct computer simulations on this plan, and the results are very gratifying ..."

Speaking of this, Zhang Qihang looked at Guo Jianguo and said seriously: "Leader Guo, let's tell the truth, now our group has experts from the former Soloviev Design Bureau who are familiar with the D-30KP-2 engine, and there are also experts from the former Soviet Union. Aeroengine experts from the Ivchenko Design Bureau and the Klimov Design Bureau are indeed relatively easy to use the opportunity of overhauling the D-30KP-2 to master this engine and conduct final verification and confirmation of our improvement plan. But the most fundamental reason why we have this idea is to minimize the irritation to the Russians."

"Less stimulus to the Russians?"

Of course Guo Jianguo is not stupid, he was taken aback for a moment, and then understood the meaning of Zhang Qihang's words: If Huateng Industrial Group imitates the D-30KP-2 engine 1:1, this is of course the simplest and has the highest success rate method, but if we do this, what will Lao Maozi think about it?
After all, what is the state of our country's cutting-edge military industry? Everyone knows that for a long time in the foreseeable future, our national defense modernization and military modernization will still rely on Lao Maozi's help. Next, if the old men know that we are "imitating" their D-30KP-2 engine, will they feel awkward or will they secretly play tricks?

But on the other hand, if we built a more advanced engine on the basis of D-30KP-2, it would be another matter. If the old man has an opinion, we can give it back in one sentence: Yes, we admit that our engine was inspired by your D-30KP-2, but being inspired does not mean that we copied X from you, and did not see the fuselage diameter, bypass ratio, maximum thrust, and weight Are these core technical indicators such as fuel consumption different from your D-30KP-2?

what?
You said you want an engine to go back and compare?

What good thing do you think, it's impossible!Absolutely impossible~!

In a word, even if the old Maozi saw this engine produced by Huateng Industrial Group, he felt a little bit guilty, thinking that this engine had a deep relationship with D-30KP-2, but without sufficient evidence, they would not Dare to do anything to Huaxia, after all, they themselves are not sure whether this engine was made by Huaxia themselves. As for the strong "hair smell" on this engine, there is nothing to say, don't forget Huaxia Who did China's military industry learn from? To some extent, this is actually a fig leaf, giving both parties enough excuses and reasons.

And Guo Jianguo was obviously aware of this, and he became excited immediately, and couldn't help standing up: "If this is the case... If this is the case..."

Before Guo Jianguo finished speaking, Zhang Qihang already understood what he meant, and quickly signaled him to be shocked: "Leader, don't be too busy getting excited. The things we did before, including computer simulations, are actually more about military fans. interaction, it’s just that we play a more advanced game, and it’s not that simple to actually do this.

If you really want to take out the prototype for testing, I reckon that even with the full support of the country, counting from now on, there will be no seven or eight years before you even think about it, and even if you take it out Prototype, even if everything goes well, it will take another seven or eight years from prototype to finalization, even this is fast..."

Compared with other types of engines, the entire testing process of aero-engines from the prototype to the final mass production is so long and rigorous that it can make people crash, but there is no way, this is the core system on the aircraft, and it must withstand It is unbelievably fast to pass the most rigorous inspection, and even say that it takes 15 years to complete an aero-engine from design to final shape.

But how could Guo Jianguo not understand what Zhang meant?He nodded again and again, but his face was flushed red: "I understand, I understand... But Mr. Zhang, tell me the truth, are you really planning to do this? Are you sure you're not kidding me? "

"I'm sure," Zhang Qihang nodded affirmatively, and said, he turned his head and glanced at Xia Pingyue: "This is in front of my second uncle, I can't just talk about it."

"..."

Guo Jianguo stopped talking, and walked around the room with his hands behind his back, frowning tightly.

As for Xia Pingyue, the expression on his face at this moment is beyond shock. He glanced at Guo Jianguo who was walking around with his hands behind his back. Are you crazy?"

Zhang Qihang naturally understood what Xia Pingyue meant, and also felt the deep concern in his tone. A warm current flowed through his heart, he shook his head lightly, and said, "Second Uncle, I understand what you mean, and thank you very much Your concern..."

"Then you still..."

"Didn't the ancient literati pay attention to the saying 'If you are poor, you will be good for yourself, and if you are rich, you will benefit the world'," Zhang Qihang said softly: "Second Uncle, I just think that I will not lack money and future in my life. According to the current trend Let’s see, when I retire in my early 60s, a vice-senior rank is the minimum, and it’s not impossible to go further, you said, in this case, is there always something noble to pursue?”

"..."

Xia Pingyue stopped talking, he already understood what Zhang Qihang was thinking, or what his pursuit was, and he was even quite relieved after understanding what Zhang Qihang was thinking.

(End of this chapter)