Super military empire

(Add 4/9 for female book friends who have not many books)

The chief engineer of the future lunar exploration project will serve as the chief engineer of China's manned spaceflight project. Liu Yijiu did not enter this time to take any position as he did in the Ninth Academy of Engineering.

Even the honorary position is not there.

The specific requirements have already been stated. How to implement it is all the matter of the project team. He returned to Daba Mountain again.

Ren Xinmin and other aerospace technology giants have stayed in the Ninth Academy after cooperating to improve and design some missile projects here.

They have been doing research on the core projects of Dongfeng-6 and Dongfeng-7.

The most important thing is the research work on supplementary combustion engines and plug engines.

Although the domestic aerospace industry has been engaged in a long period of time, both talents and experience are still in the preliminary period of accumulation.

The engine is simply not comparable to the United States and the Soviet Union.

Even the cost is quite high.

Multi-warhead technology is not much different from one-shot multi-satellite technology. For long-range strategic missiles with such a long range, multiple warheads are required.

A large rocket with one-shot multiple-satellite technology can be completely transformed into a long-range strategic missile with split-guide multiple warhead technology.

"Manned spaceflight has started?" Ren Xinmin looked at Liu Yijiu with surprise, which made Liu Yijiu a little confused, but he said indifferently, "If it weren't for this, I guess you wouldn't have come here. We, you are asking us about the engine, right?"

Liu Yijiu smiled, "For so many years, I currently mainly want to ask about the research and development of the hydrogen-oxygen engine. In addition, you have been studying the research work of completely reusing the vehicle from the beginning..."

Obviously, when he said this, he was telling Ren Xinmin that I did not pay attention to the development of your project. However, as for the current situation, I only paid attention to it, but did not interfere.

"The high specific impulse of the hydrogen-oxygen engine is what we need to pursue. Although the fuel cost is slightly more expensive. We need more thrust!" Liu Yijiu does not deny.

At present, civil rockets in the world basically use liquid fuels, and none of them use solid fuels.

Liquid fuels include liquid hydrogen/liquid oxygen, liquid oxygen/kerosene, and liquid oxygen/methane.

However, the mainstream is still liquid hydrogen/liquid oxygen and liquid oxygen/kerosene. Due to engine problems, China mainly uses liquid oxygen/kerosene, that is, dinitrogen tetroxide/unsymmetrical dimethylhydrazine fuel.The engine technology required for this fuel is relatively low, but because of the low engine technology requirements, the thrust that can be provided is also smaller.

The energy density of liquid hydrogen/liquid oxygen is high, and the theoretical specific impulse of the thrust chamber is about 1/3 higher than that of liquid oxygen/kerosene. The specific impulse can reach 350 seconds is already very good.

China's technical capabilities in this area are not good, so from the very beginning, Ren Xinmin and others entered the Ninth Institute, and started research on liquid hydrogen/liquid oxygen engines.

The plug engine is only the layout of the engine and the fuel used is the fundamental factor that determines the technical direction of the engine.

"At present, our engine's vacuum thrust can only reach 50 tons, and its reliability is not very strong." Ren Xinmin sighed. The development of liquid hydrogen and liquid oxygen engines is too technically difficult.

Even if the Ninth Institute has sufficient funds and various supporting guarantees, progress is still not too great.

"I'll take you to the engine laboratory." Although Liu Yijiu took over these things, he basically didn't have much contact with the work of Dongfeng-6 and Dongfeng-7.

"Let's take a look." Liu Yijiu nodded.

Anyway, idle is idle.

Dongfeng-6 and Dongfeng-7 have been included in the top-secret items of the Ninth Academy from the beginning. For these missiles, the worst range of Dongfeng-7 is 15,000 kilometers, while the range of Dongfeng-6 is 19,000 kilometers. At first, Liu Yijiu hoped to reach 21,000 kilometers, but after thinking about it, covering places like southern Africa and South America is basically meaningless.

The greatest threat to China is the United States and Europe.

Deterrence is only aimed at them.

"The entire engine project team is very young, cooperating with the engine general room of the Sixth Academy of Aerospace Engineering, but it is still based on our side. The person in charge, Chen Dong, is your junior and proud disciple of Lao Du. Li Dong, 35 years old this year..."

On the way to the engine general technical design room, Ren Xinmin introduced their project to Liu Yijiu.

The veteran experts in aerospace were all integrated by Liu Yijiu into two systems, one was the military Beidou, and the other was the project technology used to prepare for the space manned project.There are also some projects that aerospace itself has said to have a very large demand for personnel.

"Should he not engage in overall rocket design?" Liu Yijiu was a little surprised. Du Bin is an expert in aerodynamics. How could a student become an expert in engine design?

"His main direction is engine design."

This made Liu Yijiu a little speechless.

"Where is the group of people in the juvenile class?" Liu Yijiu asked suddenly.

The Ninth Academy took over all the graduates of the Junior Class of the University of Science and Technology of China. Although, this is a bit cruel, Liu Yijiu cut off all their opportunities to go abroad, so that many people may stay in the mountains for the rest of their lives, but for China’s scientific research work , It has a great effect.

Especially Ning Bo changed the original historical trajectory.

"The performance was very good. After allowing them to study the projects they were interested in, they exploded with great enthusiasm for work. However, there is a problem..." the old man said to Liu Yijiu strangely.

"They have all their time occupied by work and their own hobbies. They don't have time to pay attention to other things. Basically, they lose their ability to take care of themselves, right?" Liu Yijiu obviously knows these things."Don't worry about this. The staff of the Ninth Institute of Labor Union are currently looking for students of the right age across the country. Girls with the same hobbies as them will be their work assistants and life assistants when they graduate."

The daughter-in-law is given out by the base. This is normal for the Ninth Hospital.

However, as the original training system for girls like Li Rui disappeared, the Ninth Academy also carried out reforms in this regard.The beautiful girls who were previously assigned from the military art troupe and performing arts school can hardly get these young technical talents who put all their minds on scientific research.

They are the future of China's military industry.

Although cruel, Liu Yijiu had absolutely nothing intolerable.

The Rocket Engine Master Design Office is established in the Ninth District, the most confidential area in the entire Ninth Academy.

The research here is not only ammunition, the more important work is to study helium-3!

Then now, there is research on rocket fuel.

The design of the engine is also included here.

Liu Yijiu also learned after taking over that the design of the first nuclear power plant of the Ninth Institute came out of this.

With the passage of time, the nine districts with the most sparsely populated populations were also occupied by tracts of buildings, and the surrounding roads were also built.

The base garrison troops are strictly guarding the roads around the nine districts. It is not easy for people inside to get out, and it is not easy for people outside to get in.

The level of secrecy is much higher than that of areas such as tanks and helicopters.

The arrival of Liu Yijiu did not cause confusion for the entire designer. Everyone was focused on their own work, and few people even looked at Liu Yijiu more.

The first feeling I gave Liu Yijiu was that he had returned to the Dabashan base that year, and a group of young and unbelievable young people were studying the top technology in the country.

However, in the entire design room, because of its quietness, it gives a feeling of depression.

It was like inside the base where Liu Yijiu used to be.

For this, he couldn't help frowning.

"Li Dong, come and meet Director Liu." Ren Xinmin knew the situation very well, but he didn't think it was strange.

Facing a man in his thirties with a slightly fat face, he was grabbing strands of his hair with his hands, biting his frowning glasses and beckoning him.

"No time!" Li Dong replied without thinking.

Then, for a moment, he turned his head and asked, "Who's here?"

Seeing Liu Yijiu, the distress on his face was wiped out immediately, and he took the drawing on the table, "Brother, help me see what went wrong with this design..."

Liu Yijiu was not regarded as the highest person in charge of the base at all.

"I don't know much about engines." Liu Yijiu was a little speechless, but took the drawing.

"In our design, 30 tons thrust is not a problem. After the interview car test there, there is no failure. However, under the 70 tons vacuum thrust environment, each test drive will explode in less than five seconds... …" Seeing Liu Yijiu got the drawings, Li Dong introduced the situation.

Liu Yijiu was a little speechless.

Oneself is not omnipotent.

"Did your entire design team not discuss it?"

"Discussed, it's useless, I didn't find out, everyone meant to temporarily put it down..." Li Dong grabbed his hair again.

Liu Yijiu's mouth twitched.

"Dear comrades, the siege has come to an end..." At this moment, the bugle after get off work suddenly sounded, and then a female voice with a very sweet voice sounded.

"Oh! Don't go, siege the city tonight and kill the bastards who killed the computer..." Li Dong ignored Liu Yijiu at all, and then ran towards the next microcomputer...

Seeing Liu Yijiu's face full of doubts, Ren Xinmin couldn't help but slapped himself on the head in annoyance.