Chapter 866: Installation Targets of Domestically Produced High Bypass Ratio Turbofans

This time, Chang Haonan and Luan Wenjie were both stunned by Ding Gaoheng's wild thoughts.

It can only be said that he is a veteran who has participated in the development of two bombs and one satellite. He really has something in the long-term planning.

When Chang Haonan was reborn and obtained the system, he did consider space exploration and the like, but his idea at that time was nothing more than landing on the moon and Mars, or establishing an outer space orbital space station.

I even thought about conducting deep space exploration later, and after finding a planet where I could land, I would then use technologies such as quantum teleportation to transport equipment, matter, and even living things to the past.

However, farming in outer space is a somewhat simple idea in science fiction...

Indeed it has never happened.

"That depends on the specific conditions of the alien planet."

Chang Haonan thought seriously for a while, and then said:

"Like Mars, the situation is relatively stable, and the main surface is sand and gravel. It cannot be said that there is no hope at all... But for some planets with harsh environments, even solid or gaseous... there is definitely no hope, and here It also involves the fact that plants cannot grow without soil, but also need water and oxygen..."

"But then again, maybe some moss or fungi or something like that is not without the possibility of survival?"

He just said it casually at first, but later he actually analyzed it logically.

Luan Wenjie next to him actually shook his head and said matter-of-factly:

"The possibility is very small. Although there are indeed some anaerobic plants or microorganisms, they cannot survive under any circumstances. For example, the oxygen content in the Martian atmosphere is less than 1% and carbon dioxide is more than 98%. Even if it is really like It is currently widely speculated that there is a certain amount of liquid water, but the environment is still too bad anyway. It would be better to have an Earth-like planet..."

Chang Haonan frowned slightly:

"It's already an Earth-like planet, so there's a high probability that it has soil similar to the Earth's. Why bother transforming it..."

"Hiss...it seems to be the same..."

The two of them sang and coordinated so seamlessly that it made Ding Gaoheng, who first proposed the idea, a little helpless:

"Ahem——"

After coughing twice, Chang Haonan and Luan Wenjie's attention was finally attracted again:

"Actually, I just thought about it casually. You don't need to take it so seriously..."

At this moment, China is still working hard to realize the first manned space flight. Let alone extraterrestrial planets, even the lunar exploration project has not been officially approved. It is indeed a bit early to consider what will happen after landing on extraterrestrial planets. .

So this topic came to an end.

but.

Although the matter of farming in space itself is still relatively far away, Ding Gaoheng's imagination just now brought a lot of inspiration.

"Actually, if I really want to say..."

After a brief silence, Luan Wenjie broke the silence first:

"Compared to transforming alien planets, the technology developed by Mr. Chang seems to be more suitable for exploring alien planets. At least it allows us to obtain more detailed surface information of the target from a relatively long distance..."

Chang Haonan did not speak, but listened to Luan Wenjie's first thoughts, and then entered into his own thoughts——

Although extraterrestrial exploration is more realistic than landing on extraterrestrial planets, it must first be able to go to deep space.

The beautiful alien photos that people usually see on the Internet or in books and magazines are actually a lot of secondary renderings.

In fact, the resolution of images observed by near-Earth space instruments such as the Hubble Telescope is generally quite poor, and there is only a single optical channel, which is simply not enough to provide data for in-depth analysis.

To reduce the dimensionality of high-dimensional data, you must first have high-dimensional data.

In short, these can only be regarded as reserved ideas.

However, Chang Haonan just thought of something else.

During the meeting at the Institute of Geology and Geophysics that day, before he proposed the idea of ​​turning sand into soil, the one that actually attracted most people's attention first was the idea of ​​modifying desert sand and then partially replacing river sand for use in Building materials ideas.

And I heard that the project application process is already underway.

Of course, Chang Haonan himself has no idea of ​​​​strengthening his career in the construction industry for the time being.

But if you promote it...

Modifying the covering on the surface of the moon or Mars so that it can be used as a building material is obviously much more realistic than growing food and vegetables in that place.

And if you want to verify the feasibility of this road, the first step you have to do is actually no different from what it is on earth.

Exploration, sampling, analysis.

In other words, a return detector must be launched.

"Having said all that, no matter what we plan to do, we still have to go to outer space first."

While Luan Wenjie finished speaking, Chang Haonan intervened in time:

"I remember Director Luan mentioned in a meeting before that the space agency is planning to carry out a lunar exploration project?"

In fact, he had never heard of it at all, but vaguely remembered that the lunar exploration project in the previous life was established probably in the past few years.

Luan Wenjie had said so much in meetings that he usually held, how could he possibly remember such details? He just thought he had mentioned it during an internal meeting.

However, this time Chang Haonan talked to Ding Gaoheng.

So the latter answered directly:

"That's what happened."

"Comrade Wenjie and Comrade Ye Jianpei, the chief engineer of the Ziyu-2 satellite, have reported to the higher authorities twice through me."

"Technically speaking, it is basically not difficult for us to launch a satellite that orbits the moon, including a hard landing on the lunar surface. What is more challenging is the soft landing, and later the return to the earth. ”

"So the intention of our superiors is to wait until our automatic control soft landing technology has passed more tests before officially launching the lunar exploration project..."

Chang Haonan didn't know much about aerospace in his previous life, so he specifically brought the topic in this direction. As expected, he heard a lot of things from Ding Gaoheng and Luan Wenjie that he didn't know much about before.

The conversation continued for about twenty minutes, until Luan Wenjie raised his wrist to look at the time and said that he had a meeting to hold later, and the conversation ended.

After watching Luan Wenjie leave the office, Ding Gaoheng himself left the office chair and sat on the sofa next to Chang Haonan.

The latter immediately started making tea.

"Xiao Chang, are you here just for space breeding?"

Ding Gaoheng took the tea cup from Chang Haonan and asked with a smile.

Although the few people just talked about a lot, the ocean surveillance satellites and lunar exploration were purely coincidences caused by Luan Wenjie's presence here.

So actually...

Indeed.

But since the leader asked specifically, Chang Haonan definitely couldn't answer so straightforwardly.

He nodded first:

"The main thing is really for breeding."

After a short pause, he continued:

"But there are still some things related to the aviation development group's business. I originally planned to report to you at the end of the year, but everyone is here today..."

Ding Gaoheng adjusted his sitting posture slightly and assumed a posture of listening attentively.

"Right now, the design of the Turbofan 10 is about to be finalized. Although there will still be production and finalization tasks in the future, the manpower required is much less than now, especially when other factories are sent to Shengjing to participate in the Turbofan 10 The comrades on the project will be able to return to their original units by the Spring Festival next year at the latest, so that they can take on some new projects..."

Listening to Chang Haonan's answer, Ding Gaoheng gradually became happy.

In the past, his biggest headache was hearing about new projects related to aviation development.

But now, it's completely different.

"Like the three new models you mentioned last year when the Aerospace Power Group was established?"

Ding Gaoheng asked:

"I remember that there seems to be a high-power aeroderivative gas turbine, a large bypass ratio turbofan engine, and... a 1,600kW-class turboshaft?"

"Yes, you remember correctly."

Chang Haonan affirmed:

"The first naval gas turbine, I have contacted with the 701 Institute before, is to be prepared for the future domestically produced main surface ships. The third turboshaft engine... We still have relatively few technical reserves in the turboshaft aspect. , In addition, there are not many people sent by Southern Dynamics, and their capabilities are relatively weak, but they are not that fast. "

"It's just that for this second project, the large bypass ratio turbofan... we still need to find a suitable installation target."

This time, Ding Gaoheng understood clearly——

The aero-engine project was established independently of the aircraft model, and it just got rid of its vassal status in the past.

This does not mean that aviation development development should be disconnected from aircraft models.

Once an engine is built, it must be installed on an airplane to be considered a real success.

But after all, Chang Haonan is no longer a member of the Aviation Industry Group, and it is difficult for him to directly direct the work of his brother units.

So, this is for my own project.

"Can't you just replace it with C909?"

Ding Gaoheng asked:

"Anyway, when our large bypass ratio turbofan is developed, the C909 should also be domestically produced."

"Not really."

Chang Haonan shook his head:

"When the C909 was designed, it was adapted to the PS90A, which has a relatively smaller diameter. Changing to a larger-sized aviation engine would pose safety risks."

"In the long run, we will definitely design a new passenger aircraft of the same level as the Airbus A320 or Boeing 737 from scratch. However, Hufei's R&D capabilities are currently relatively average, and almost all of its efforts are used in the localization of the two models. Above, I am afraid there will be no extra energy in a short period of time, and the new passenger aircraft is equipped with a new engine, which may inevitably cause concerns for the airlines. "

"So I thought it would be better to let this model stand the test on military aircraft for a period of time."

The aviation field is different from most other fields. The requirements for reliability, maintenance hours, and safety of civilian aircraft are much more stringent than those of military aircraft.

Especially for the international aviation market, China is still a new player.

Moreover, mainline passenger aircraft also involve airworthiness certification issues.

In short, military aircraft have less worries.

"Military aircraft that use large bypass ratio turbofans...basically only military transport aircraft."

Ding Gaoheng thought:

"But strategic transport aircraft like the IL-76 or C17 may not be available in the short term..."

"We can make it smaller."

Chang Haonan said the plan he had thought of for a long time:

"Our level of structural design and aviation materials is not yet sufficient to support the research and development of a 200-ton transport aircraft, but those using turbofans do not necessarily have to be heavy-duty transport aircraft."

"The new generation of medium-sized transport aircraft can also use two high-thrust turbofans to replace four turboprops, with a maximum take-off weight of 80-90 tons and a load of about 25 tons, so that the maintainability and flight comfort can be better."

"On the one hand, it is for self-use, and it also competes for the replacement of An-12 and C130 in the international market. On the other hand, it can also accumulate some experience for the development of future 80-ton mainline passenger aircraft."

This idea of ​​replacing four turboprops with twin turbofans was relatively rare in 2000.

But after 2010, it will basically become the object of preference for countries around the world.

For example, the KC390 developed by Embraer has almost become the first choice among aircraft of the same level in the 2020s.

The Netherlands, Hungary, Portugal, South Korea, and even the US Air Force all favor this model.

Although China's products are unlikely to be sold to the United States, it can still compete in other markets.

After all, even the engine of the Rafale uses Chinese technology.

The sensitivity of the transport aircraft is still much lower than that of the main battle equipment...