I think we are all smart people and talents of the country. Now we just have to unite and work together to complete this 'manned spaceflight' plan."

After Zhao Zhongyao said this, everyone was looking at him. Everyone was very serious. After all, everyone knew that only Zhao Zhongyao could lead them to complete the manned space program. No one else could

It's possible to do it all.

After Zhao Zhongyao said these words to everyone, he asked everyone to disperse the meeting.

This day passed like this. For Zhao Zhongyao, he felt that this was a very important day. From today on, he will devote himself to work wholeheartedly.

To complete this manned space program, the first thing to do is to develop a high-thrust launch vehicle. For Zhao Zhongyao, this feels like a very important task. He must complete it

Just fine.

Zhao Zhongyao first thought that when developing a high-thrust launch vehicle, the first thing to do is to solve the engine problem. Although the rocket also uses a jet engine, this engine is also different from the engine on an ordinary aircraft.

If a rocket needs to send something weighing several tons into space, the thrust of the engine must be very huge. Because the weight of the rocket itself plus the cargo to be carried is generally tens of tons or even hundreds of tons.

This requires that the rocket's engine must have high thrust. Ordinary engines are simply unable to complete this major task.

Zhao Zhongyao has studied things like engines before. When he was studying the F-117 stealth fighter, he once studied a large cart jet engine.

Now we need to study high-thrust rocket technology. Zhao Zhongyao wants to take the turbofan engine he studied before and study it again.

But Zhao Zhongyao studied and studied again and again, and felt that the thrust generated by the previous turbofan engine was still unable to send a rocket weighing dozens of tons into space.

This requires Zhao Zhongyao to research a new type of engine, which is specially used on rockets.

Zhao Zhongyao also knew something about the rocket technology of his time. He knew that the rocket technology of his time generally used liquid fuel. That is, a mixture of liquid hydrogen and liquid oxygen was used as fuel to propel the rocket.

flight.

Although liquid fuel can produce a lot of thrust, this fuel is consumed very quickly. If a rocket is to complete its mission of sending cargo or people to space, the rocket needs to carry a large amount of fuel.

This is the case with high-thrust rockets in the United States. To send the space shuttle into space, the rocket needs to carry two thousand tons of fuel. It can be said that the maximum weight of the entire rocket is the weight of the fuel tank.

Such a rocket is very bulky. Just like the rocket used to launch the space shuttle in the United States, the rocket plus the space shuttle weighs more than two thousand tons. Every time it is launched, it consumes a lot of fuel and costs a huge amount of money.

Zhao Zhongyao also knows this. After all, he was a Chinese-American scientist during his lifetime. Now he has been reborn on another parallel earth and came to a parallel world like China.

Zhao Zhongyao knew that if he wanted to solve the problem of big cart rocket technology, he first had to think about what kinds of rocket engines there were in the world when he was alive. He knew that in the world when he was alive, there had been

There are several types of rocket engines. Generally speaking, they are mainly divided into two types: solid and liquid engines.

These two engines have different characteristics, and it can be said that each has its own advantages. Now that Zhao Zhongyao wants to research a high-thrust engine, he can only learn from the engines he knew during his lifetime.

Zhao Zhongyao knew that there were many kinds of engines in the world when he was alive. Among them, there was a very advanced engine called a plasma engine.

This kind of engine is different from ordinary engines. It is not propelled by fuel, but by electricity. It is an engine that uses electricity to heat the air, generate plasma, and then propel the rocket to fly.

The plasma engine is a type of electric propulsion system and has been used quite maturely at home and abroad. The main medium for its application is plasma. It uses the Lorentz force to accelerate charged atoms or ions through a magnetic field to reversely drive the spacecraft.

It's the same principle as particle accelerators and railguns.

In science fiction, aircraft can always provide power for the entire interstellar journey. But in reality, the engine technology of rocket thrusters simply cannot achieve this. Compared with the exposed propellant tank, the engine of a chemical rocket looks

It's small, but it has a huge appetite. "If it eats more, it won't work efficiently."

The massive amounts of energy consumed by this engine are only effective in providing short-term power - the stored fuel is quickly used up, and the thrusters are immediately thrown away as garbage. Most of the fuel in chemical rockets is used to escape the earth's gravity, and the remaining

One point is used to propel the rocket's "space glide". The rocket flies to its destination only by inertia. For interstellar flight, this kind of engine is obviously not powerful enough.

"Saturn 5" is a typical representative. Its first stage is equipped with 0.75 tons of liquid oxygen and kerosene propellant. Once the engine is ignited, it can "drink" all these "drinks" within 4 seconds. The high-temperature gas travels at 900 meters

/ second, it is only enough to send a 47-ton payload to the moon. Of the 500 tons of thrust that can be generated, a large part is used to "drag" the rocket itself and more than 3,000 tons of fuel.

Therefore, its "specific impulse" is not high, only more than 00 seconds, which shows that its propulsion efficiency is low. This is why a huge rocket must be used to send a person with a small mass into space.

Plasma engines, or commonly known as "ion thrusters", adopt a completely different design idea from chemical rockets. It uses the Lorentz force to accelerate charged atoms or ions through a magnetic field to reversely drive the spacecraft, and the particle accelerator and

Railguns all work on the same principle.

"Plasma rockets provide relatively little thrust for a certain period of time, and then once they enter space, they will be like sailing ships with a tailwind, gradually accelerating until their speed exceeds that of chemical rockets." In fact, there have been many space explorations so far.

Missions use plasma engines, such as NASA's asteroid-exploring Dawn spacecraft.

probe and Japan's Hayabusa probe that detects comets. One of the purposes of the European Space Agency's SMART-1 probe that hit the moon is to verify how to use ion propulsion technology to send future probes into orbit around Mercury.

track.

Although the plasma engine has many advantages, it also has some disadvantages, that is, it must continuously provide power to maintain its work. It is a machine that 'drinks' electricity.

After Zhao Zhongyao thought about the many types of engines he knew during his lifetime, he thought that he would now learn from each other's strengths and develop a very advanced rocket engine. Only in this way can he complete this manned spaceflight program.

After thinking about it, Zhao Zhongyao felt that the atomic engine he had studied before could be used. After all, if this kind of engine was used on a rocket, it would reduce the weight of the rocket and eliminate the need to carry a large amount of fuel.

.

Moreover, nuclear power is used to provide energy, and only a small amount of nuclear fuel is carried to maintain the rocket's long-term flight requirements.

Thinking of this, Zhao Zhongyao quickly started designing his new rocket engine. After a month of hard work, he finally designed his new atomic rocket engine.

When Zhao Zhongyao designed this atomic rocket engine, he was very happy. He quickly found Cheng Yu. After all, Cheng Yu was Zhao Zhongyao's best assistant and an expert in aerodynamics.

.

After Zhao Zhongyao designed the atomic aeroengine, he called Cheng Yu into his office. He looked at Cheng Yu, put his design drawing in front of him and said: "Old Cheng, look at it, I designed it

How about this drawing?"

As soon as Cheng Yu heard what Zhao Zhongyao said, he quickly got the drawing and looked at it. When he saw that the drawing said atomic rocket engine, he was very surprised. He didn't know that this kind of engine designed by Zhao Zhongyao,

What kind of engine is it?

"Mr. Zhao, what kind of engine is this engine you designed? Why haven't I heard of an atomic rocket engine?" Cheng Yu looked at Zhao Zhongyao in confusion and asked.

After hearing Cheng Yu's words, Zhao Zhongyao looked at him again and said: "The engine I designed uses the working principle of the atomic engine I designed before. Then I improved it and turned it into an aviation engine.

Rocket engine.”

Upon hearing what Zhao Zhongyao said, Cheng Yu became very curious. He looked at Zhao Zhongyao and said, "What are the advantages of your engine and what is its working principle."

After hearing Cheng Yu's words, Zhao Zhongyao smiled and said: "The working principle of the engine I designed is similar to the working principle of the atomic engine I designed before. The only difference is that the engine designed this time

The atomic engine is to allow the engine to generate high-temperature gas and then propel the rocket into flight. Although the previous atomic engine also produced high-temperature gas, the previous high-temperature gas only drove the internal combustion engine to rotate. Compared with the current atomic engine, it only has some differences in thrust.

the difference.

Of course, the thrust of the rocket engine developed this time must be dozens of times that of the atomic engine previously developed for tanks. It can be said that the rocket engine I am developing now is the original atomic engine.

Upgraded version.”

Upon hearing what Zhao Zhongyao said, Cheng Yu admired Zhao Zhongyao very much. He looked at Zhao Zhongyao and said: "Mr. Zhao, you are really amazing. Without you, we would not be able to complete this major project.

Mission. Now that you have designed the core components of the high-thrust rocket, the next step is to start production."

"Of course, we are also pressed for time and have heavy tasks. We must develop the rocket engine as soon as possible. Only by developing this core component first can we further develop a high-thrust rocket." Zhao Zhongyao looked at Cheng Yu again and said.

"Okay, I will listen to Mr. Zhao. Now that you have developed this high-thrust rocket engine, let's develop it together in the next step!" Cheng Yu looked at Zhao Zhongyao again and said.

"Okay, then I will leave the following tasks to you. I will continue to design other systems of the rocket. This core component has been designed now. But to design a rocket, there are many more components. I still need

Continue to design other components.

Now I leave this production task to you. You must strictly follow the content drawn on the drawing to produce this high-thrust atomic rocket engine. Only by producing it first can we continue to study high thrust.

Launch vehicle.”

Zhao Zhongyao knew that his time was very tight. If he wanted to complete such a major task, he had to do a lot. Simply designing a high-efficiency atomic rocket engine was not enough.

"Okay, Mr. Zhao, then leave this arduous task to me! I will definitely produce this advanced atomic rocket engine as soon as possible. By then, you will be satisfied."

Cheng Yu knew that he could not design such an advanced rocket engine. But he could help Zhao Zhongyao produce this advanced atomic rocket engine.

"Okay, then let's work separately! I will continue to design other parts of the rocket, and you can produce this advanced atomic rocket engine!" Zhao Zhongyao looked at Cheng Yu again and said.

"I will, I will definitely complete this task soon." Cheng Yu also looked at Zhao Zhongyao with great certainty and said.

After finishing speaking, Cheng Yu walked out of Zhao Zhongyao's office. He took the drawings and came to the laboratory.

"Here, let me show you something." After Cheng Yu came to the laboratory, he took out the drawings of the atomic engine designed by Zhao Zhongyao, and then asked everyone to take a closer look.

All the scientific researchers came to Cheng Yu's side as soon as they heard what he said. When everyone saw the atomic rocket engine designed by Zhao Zhongyao, they all had surprised expressions on their faces. After all, everyone didn't know yet,

What will this rocket engine look like? Now when I see the rocket engine designed by Zhao Zhongyao, I feel very surprised. They never thought that Zhao Zhongyao would design an atomic rocket engine.

"This is an atomic rocket engine. Doesn't it look very ordinary?" A thin young man said while looking at the drawing in Cheng Yu's hand.
Chapter completed!