Let you be a prop, what the hell is this space elevator?

Chapter 234 Can't 5G be used to send the astronaut's emergency enlistment notice?

Jiang Chen looked at the stranger calmly, he looked about thirty or so years old, with a thin figure, but his eyes were full of light, he seemed to be number one.

Jiang Chen didn't speak, and the stranger also smiled and didn't speak.

Jiang Chen was confused.

You come here all the way and don’t talk, brother, are you here to play?
Academician Liu probably also felt that the atmosphere was a bit weird, so he hurriedly said: "This is Xiang Yang, the project manager of COMAC, Xiao Xiang, this is the Academician Jiang I told you about."

A look of joy flashed in Xiang Yang's eyes, and he said, "Hello, Academician Jiang, I didn't expect to finally see you!"

After speaking, Xiang Yang grasped Jiang Chen's hand, and his expression was so excited that Jiang Chen mistakenly thought that he had met a fanatical fan.

After the embarrassed Jiang Chen greeted the other party, he waited for the other party to say something.

"Academician Jiang, it's like this. The J-20C you developed has already spread among the top management of our aviation industry. Now the leaders of the capital mean that we hope that our civil aviation can also make breakthroughs."

"This is a good thing." Jiang Chen commented, not realizing the relationship between this matter and him at all.

"Without the civil aviation manufacturing industry, you may not be beaten, but you cannot escape if you are slaughtered."

Hearing what Jiang Chen said, Xiang Yang agreed again and again.

"That's right. Boeing and Airbus cost us a lot of money before, but there is nothing we can do if we don't buy them. Now, under the leadership of Academician Jiang, fighter jets and drones have developed."

"We are worried that Boeing and Airbus will increase the price of civil aviation aircraft and make us take advantage of it."

hiss--

Jiang Chen took a slight breath.

I thought I hadn't thought of this layer yet.

I have raised the level of domestic fighter jets and drones. How can Yingjiang be happy?

Maybe it will be messed up in other ways.

In the entire aviation manufacturing industry, the manufacture of civil aviation passenger aircraft needs to integrate various advanced technologies. Only when a country's industry develops to a certain level can it be possible to develop its own civil aviation passenger aircraft.

Moreover, once the civil aviation airliner is developed, it can also have a driving effect on the industry of the entire country.

Now that they can't build big planes, they are bound to be choked by companies like Boeing and Airbus.

But why did Xiang Yang come all the way here and tell himself this?
Jiang Chen had a bad premonition in his heart.

Sure enough, the other party proposed in the next step: "I hope Academician Jiang can help us."

Tsk, this favor is not something that can be done just by saying it.

What I built before was a fighter jet. Compared with civilian airliners, this thing has something in common, but it is also very different.

In terms of flight performance, fighter jets need higher climb rates, greater maneuverability and faster speeds in order to survive and perform missions in special times.

Airliners focus on comfort and economy, and are usually designed for smoother, more efficient cruise flight functions.

According to Jiang Chen's experience in building fighter jets, it is really not sure if he is going to be a passenger plane.

But the only thing that is certain is that he can still help with the engine.

"The engine currently used by the J-20C is Bluestar's first variable-cycle engine. The maximum afterburning thrust of this engine is 30 tons, but the thrust of an airliner like the Boeing 777 is about 52 tons."

"The gap in thrust is not too big. We can find ways to improve it, but it will take time." Although Jiang Chen obtained the technology of the second part of Wandering Planet, he only has the technology of J-20C in aviation.

Although learning the relevant technology can achieve the effect of analogy, it also takes time to touch it.

Building a passenger plane is not something that can be solved with a slap on the head.

That one engine is not enough, is it not possible to hang a few more variable cycle engines?
It really doesn't work.

Civilian use is generally a subsonic commercial airliner. Considering fuel costs and service life at subsonic speeds, and installing a few more fuel-eating monster variable-cycle engines, few people will be able to afford to fly.

Therefore, it must be changed, and it must be changed to an engine with a high bypass ratio, high pressure ratio, and high temperature ratio, which can save a small amount of money.

The key is how to change this, Jiang Chen still has no idea.

In order not to expose his current lack of knowledge about civil aviation airliners, Jiang Chen asked MOSS to give Xiang Yang a small amount of basic information on variable cycle engines, and let him go back and study first.

After Xiang Yang left, Jiang Chen dug out the system.

At this time, the voice of the system suddenly remembered.

[Congratulations on completing the mission: J-20C Fighter. 】

[Rewards are now issued: 2300 points. 】

[Your current points are: 7955 points. 】

[Next task: 7G construction. 】

[Mission points reward: 4000 points. 】

Jiang Chen: ? ? ?
7G?

Now that 5G has not been popularized in Longguo, is this directly 7G?
I'll go, the system will really arrange difficult problems!
Is there really 7G in Wandering Planet?
Jiang Chen's mind went blank for a short time, and then his whole body went bad.

He seems to remember!
In the play, when Wu Yan received the astronaut's emergency enlistment notice, the display on his mobile phone seemed to be 7G!

He was really convinced.

Can't the astronauts' emergency enlistment notice be sent using 5G? !
But after calming down, Jiang Chen also understood the system's intention of arranging this task through the system's prompt.

Only by realizing the 7G communication of integrated communication between space and ground, can there be a way to support a highly developed artificial intelligence, just like before MOSS remotely operated the artificial intelligence of the big dog, and when it came to an emergency——

The network card is gone.

If it is in the 7G state, it is impossible for such a thrilling thing to happen.

In addition, the Kunpeng UAV is about to enter service now. If you want to control thousands of Kunpeng at the same time, it is really impossible to operate without 7G.

按照系统的描述，6G的数据传输峰值的传输速度达到了100Gbps– 1Tbps，是5g的10-100倍。

7G can reach 5 times that of [-]G!
Not to mention ordinary data, even the consciousness of a human being can be uploaded to the computer in seconds with the help of 7G!
Jiang Chen realized that 7G communication must be done.

If there is no way to solve the 7G problem, it will be difficult for the world to develop.

If Jiang Chen's technology is really going to be used at that time, there is no communication network foundation to support it.

Communications are underdeveloped, and other technologies cannot be driven.

Relying solely on mobile 5G to develop high technology is empty talk!
Jiang Chen sighed slightly, and resigned himself to letting MOSS find information about communication engineering.

When looking for information in MOSS, Jiang Chen looked through the system's mall, wanting to find technology related to civil aviation aircraft. After looking around, he only found an X engine.

X engine?
What engine is this?Jiang Chen clicked on the parameters to check, the more he looked, the more frightened he became.

It is actually 1 times better than the LEAP-100C engine that CFM International sold to Longguo in the previous life!
Not to mention that the thrust-to-weight ratio has directly reached 20, and under the scramjet technology, the speed can reach Mach 16, and the fuel efficiency has increased by 70%!

用一架常见的A320或B737为例，现在它们的耗油量在每小时2.5吨到3吨左右，但如果把发动机换成X发动机，那么油耗只会在0.75吨到0.9吨左右！
Great value for money!

Jiang Chen was overjoyed, and looked at the system's price tag.

(End of this chapter)