MTL - Rebirth 2008: I Can Make Money Reading-v2 Chapter 494 Sky 1
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It is nothing new to have multiple engines in one aircraft, as long as the thrust is large enough, it can be played like this. Mu Yang's plan for the ideal number of engines for aerospace aircraft is to configure a rocket engine at the tail. This rocket engine has a thrust of more than 1,000 tons and can carry more than 200 tons of liquid hydrogen and oxygen fuel.
In this way, it is not a problem to go to space and return to Earth.
On both sides of the rocket engine, there are two large afterburning turbofan engines. The tail vector nozzles can jet downward at 90 degrees. There are 4 sets in total, each with a thrust of more than 150 tons, and the total thrust is not less than 600 tons. Ton.
In addition, the front end of the aerospace plane is also equipped with two lift engines.
The lift engine is to ensure the balance of the take-off and landing of the aerospace aircraft, and the total thrust of the two engines must reach more than 30 tons.
In order to ensure the overall balance, the center of gravity of the aerospace plane is closer to the tail, and it is also necessary to ensure that it is adjusted with the change of fuel, and it needs to have powerful computing power to distribute thrust.
Otherwise, the difference in thrust between the front and rear is too large, and the overall balance of the aerospace plane cannot be guaranteed.
When taking off vertically, the two lift engines in front and the four afterburning turbofan engines in the rear are turned on at the same time, and the two work together to jet downward to lift the aerospace plane.
Afterwards, the tail nozzle of the afterburning turbofan engine is gradually changed from 90 degrees downward to the rear jet, and the fuel supply of the lift engine is gradually reduced after take-off until it is turned off.
After rising to a high altitude, start the rocket engine and lift quickly. This is the most fuel-efficient and thrust-efficient design.
In this way, the vertical thrust can reach = 600 tons + 30 tons = 630 tons, which can satisfy the vertical take-off and landing of aerospace planes over 550 tons.
Excluding the empty weight and fuel weight of the aerospace plane, it can also carry one or two hundred tons of cargo to the sky. If a larger aerospace plane is made, it is not difficult to carry thousands of tons of cargo into the sky. The aerospace plane can also be transformed into a long-range bomber, flying to the space of a certain country and then dropping a nuclear bomb.
But if Xinghuo-1 is developed, there is no need for an aerospace plane to drop bombs, and it can just carry nuclear warheads directly. How can it be so complicated.
The above is just Mu Yang's fantasy, he can't buy the technology of aerospace plane now. Perhaps, the aerospace plane in the system store is not the same structure as he imagined.
"Thinking about this aerospace plane makes me a little excited. All the current achievements of Xinghai Group can be said to be laying the foundation for aerospace planes."
"Being able to develop an aerospace plane means that my company really has the strength to build a space station in space."
"There are too many things to do during this period, and there are many things to do in the development of spacesuits alone."
"Hey, I'm thinking too much, and the mental friction is too high. It's better to do the things in front of me in a down-to-earth manner and lay a solid foundation."
Mu Yang came back to his senses and gave up his fantasy of aerospace planes.
On his computer screen, a three-dimensional map of the Xingkong-1 rocket was displayed. The first launch vehicle was named "Xing Kong No. 1" by Mu Yang.
The rocket structure size of Xingkong-1. Level: Level 1
Overall length: 45.860 meters Wingspan: 5.50 meters
Design take-off mass: 700 tons
Design take-off thrust: 9500 kN (equivalent to 969 tons) Take-off thrust-to-weight ratio: 1.384
Carrying capacity: 200 tons (LEO low earth orbit, 440 km circular orbit, used by earth observation satellites, geodetic satellites, space stations and communication satellites)
90 tons (SSO sun-synchronous orbit, 700 km circular orbit, used by meteorological satellites and resource satellites)
The parameters listed on the computer are only the main parameters, not many.
People who know a little bit about rockets will definitely drop their jaws when they see the carrying capacity. 200 tons! !
What is this concept?
Compared with the Long March 7 carrier rocket, which is similar in size and shape, the Xingkong-1 carrier rocket has a very strong carrying capacity. The former can carry only a dozen tons to LEO, while Xingkong-1 reaches a terrifying 200 tons.
The SSO capacity of Long March 7 is 6.5 tons, Xinghuo 1 is 90 tons, the world's largest launch vehicle "Saturn
No. 5" can't match the carrying capacity.
The gap between the two technical levels is not just one or two grades.
With the Xinghuo-1 engine, the fuel utilization rate is higher, and liquid hydrogen is still used, so there is no need to use so much fuel to convert it into carrying capacity.
For a rocket to take off vertically, it must at least ensure that the takeoff thrust-to-weight ratio reaches 1.1 or more. Like the Long March 1, the take-off thrust-to-weight ratio is 1.275, and that of the Long March 7 is 1.24.
Of course, the structure of the launch vehicle is different, and the required take-off thrust-to-weight ratio is also different.
If it is manned, the thrust-to-weight ratio must not be too high. People can withstand a long-term overload of 5g, and it is still in the case of wearing a decompression suit.
Like Xinghuo-1, if it is used to carry people, the acceleration cannot be too large, and must be controlled within the range of human tolerance.
Some human beings can't bear to take a high-speed elevator, let alone a launch vehicle with a higher acceleration.
Speed and acceleration are two different things. It doesn't matter how fast the speed is, but it can't bear too high acceleration.
In order to ensure the ascent speed of the manned rocket, it must reach more than 7.9 kilometers, that is, in the acceleration stage, at least 7900/5*9.8=161 seconds.
If the acceleration is too fast, that is, the acceleration time is less than 161 seconds, or even less, humans are in a dangerous state.
Xinghuo-1 uses recyclable technology, so it is a first-stage rocket and has no boosters. The booster is used because the thrust is not enough, and the thrust of Xinghuo-1 is sufficient, so there is no need for a booster at all.
The main reason why the rocket adopts a multi-stage structure is that the maximum speed of most single-stage rockets cannot reach 7.9 kilometers per second. If the rocket cannot reach this speed, it cannot fly away from the earth.
Therefore, only multi-stage rockets can be used, and the structure of multi-stage rockets, like a relay race, accelerates step by step, and then reaches a speed exceeding the first cosmic speed to send the spacecraft into Earth orbit.
With this design, the first-stage rocket is discarded directly after burning.
With the use of recyclable technology, there is no such thing as discarding the rocket body, but recycling it as a whole. Mu Yang's rocket design has been completed, and the data has been exported and sent to the database. Mechanical designers have the habit of frequently opening drawings to check information, and so is Mu Yang.
While checking the rocket information, he recalled the development plan of this project. On the table, there is the development progress he wrote down:
On January 4, 2015, the launch vehicle engine Xinghuo-1 was officially approved;
In February 2015, Xinghuo-1 rocket engine drawings were issued and the team digested technical drawings; in March 2015, the development of the rocket recovery technology system was completed and entered the preliminary testing stage; in April 2015, Xinghuo-1 fully entered the initial sample development stage;
In May 2015, the company's first launch vehicle was designed and named Xingkong-1;
In May 2015, the carrier rocket launch base, the road construction was completed, and the launch site construction began;
In June 2015, the main body of 3 units of Xinghuo-1 was manufactured, and the overall progress was 50% completed;
In June 2015, 90% of the main body of the rocket manufacturing factory in Yangfu District was completed, and it was ready to enter the stage of decoration and equipment installation;
······
The Xinghai Group has not announced the development progress of the rocket engine and the rocket body. The outside world does not know what the Xinghai Group's rocket engine is like, whether it is borrowed from the country's rocket launcher, and what rocket body design is adopted.
But as long as you look at the design parameters of the Xinghuo-1 rocket engine and the Xingkong-1 launch vehicle, you will be absolutely shocked by the terrifying thrust-to-weight ratio and carrying capacity.
Mu Yang also guessed that the national aviation department would really not have any ideas when they saw Xinghai Group's Xinghuo No. 1 engine.
He didn't think about keeping Xinghuo-1's technology, even if the technology was packaged to the country, without Mu Yang's guidance, they would still have to spend a year or two digesting it.
It is one thing to have technology, but it cannot be manufactured without manufacturing capabilities.
Even if it is given national equipment, manufacturing efficiency, and quality are not comparable to Xinghai Group.
"
I have contributed technology to the country, but you don't have the ability to digest it. It's not my fault. "Ah, can't make it?! That's not my fault."
In the end, the country still relies on the Xinghai Group.
Mu Yang contributed Xinghuo-1 technology to the country in exchange for something that cannot be bought with money.
From another aspect, Muyang also strongly supports the country's development of high technology.
It’s just that the Xinghai Group already has the ability to work alone, and has a greater degree of freedom. Mu Yang needs complete and unambiguous right to speak and dominate.
Not to mention anything else, let’s just talk about Mu Yang’s current social status. He wants to go to the National Aeronautics and Astronautics Research Institute to investigate something. It is estimated that many people in them will not welcome him, and they will not show any technology to Mu Yang. If they come to Xinghai Group, Mu Yang will not open technology to them.
Everyone starts to distrust each other, and this will happen.
Unless it is said that the Xinghai Group has demonstrated the world's top level of aerospace technology and has demonstrated strong strength, the national aerospace research institute is open to Mu Yang, and even invites him to guide the work.
If the two sides cooperate, Mu Yang may not be able to listen to him, and it will be difficult to command them.
There are fights within or within the same department, let alone not within a unit or company.
Therefore, Xinghai Group has no choice but to borrow or buy resources from the country. It has no choice but to cooperate.
On the other hand, it will be difficult to hide the fact that he will engage in large-scale aerospace equipment such as aerospace planes in the future.
·····.
Time flies.
July has come as scheduled, the college entrance examination has passed, and the scores have been announced.
For this year's college entrance examination graduates, especially the top 100 students in each province and recommended students from Qingbei, they hope to be selected as Muyang students.
As the saying goes, you either go to work in the sea, or you don't know how to be imitated.
As long as he is selected by Mu Yang, he can change his fate against the sky, and from then on, he will have no worries about basic necessities of life.
In the past year, the life information of the five students in Muyang was not much exposed, but it was still exposed. Their lives have undergone earth-shaking changes. The students of Jiangsu and Zhejiang University do not know how much they envy these five people.
On July 1st, Mu Yang checked the progress of the five students.
Leng Han and Jin Wei have started to learn the knowledge of the second year of research, and Mu Yang has already begun to teach them some cutting-edge scientific and technological knowledge, which cannot be learned in school.
From July onwards, the two of them can no longer go to school to attend classes, and they can really join the scientific research project team of Xinghai Group, but they are not regular employees, but in the form of assistance and learning.
The two of them don't need to prepare any undergraduate thesis, as long as Mu Yang approves it. Eight years of continuous undergraduate, master, and doctoral studies, and finally passing the doctoral dissertation is enough.
The other three students have already started to get in touch with the professional knowledge of the junior year, and they will continue to take classes in school.
Under the guidance of Mu Yang, the five of them studied very fast, but Mu Yang's requirements were also extremely high. He hoped that after a year, Leng Han and Jin Wei could independently complete some cutting-edge scientific research projects, and when they graduated with a Ph. Civilization junior scholar level.
To upgrade the mentoring function to LV2, students do not need to reach the level of a first-level civilized junior scholar, as long as they are recognized as "top students" by the system.
But the knowledge level of this top student has not been quantified, and Mu Yang does not know when they will reach it.
It has been a year and a half since the system was upgraded to level 7 on January 1, 2014. To upgrade to level 8, three conditions must be met.
Build a smart city, 10 disciple titles have reached the primary level of first-level civilization, and there is a "?", that is, the last condition has not yet been shown.
It is too difficult to upgrade to level 8, Mu Yang is not in a hurry anymore, his mentality has been calmed down.
It can be said that after the system was upgraded to level 7, Mu Yang's life became more relaxed, and he could do whatever he wanted. Unlike before, in order to upgrade, I forced myself to gain experience every day, like a tool man.
"Teacher, when will we have another junior brother? We still don't plan to recruit any more." Leng Han was more courageous, and asked Mu Yang with a smile
.
The main reason is that she thinks the teacher is kind and amiable, she has never lost her temper with them, and takes good care of them in study and life. In her eyes, the teacher is already her family.
Mu Yang glared at her: "It's going to be another month. Why, you're not enough to order four." Do you want to recruit more students, the college entrance examination candidates who have just graduated are dying of anxiety.”
"Life has experienced the tempering of mind and character, and it is good for me." Mu Yang thought about it, remembering that these five students have been very tired from studying this year, and then said, "School is also on holiday, I have a task for you, go out Go for a walk, see the mountains and rivers of the motherland, learn to empty your mind, and come back half a month later to start studying.
Don't be a tool for scientific research, learn to enjoy life and learn to regulate emotions. This is also a kind of learning, and only in this way can you do a better job in the future.
Otherwise, you will be stuck in the laboratory and school all day, and you will not be able to produce any results after holding it for a long time, and your heart will not be on scientific research. "
Leng Han and other five students were ecstatic when they heard this.
"Really wow, that's great, teacher, I've wanted to go to the west for a long time." "Except for coming to Jiangsu and Zhejiang provinces, I haven't been out of the province yet."
Mu Yang looked at the students and suggested: "If you have enough time, you can go to Jiuzhaigou to play. This season is more suitable for fun, but you must pay attention to safety. UU Reading www.uukanshu.com"
After finishing speaking, there was nothing to explain, and he waved his hand.
Leng Han and the other five people understood and happily left the teacher's office. On the way, they planned to go out to play together.
Two days later, on July 3rd,
Mu Yang announced the notice of recruiting students this year on his Weibo.
The number of people is set at 2-5, and the registration starts on July 10, the screening will be on July 20, and the results will be released in early August.
The screening requirements are the same as last year, the top 100 in each province and Qingbei recommended students. Mu Yang's master-apprentice system is still LV1, and can recruit up to 10 students.
By next year, it may not be able to rise to LV2, so Mu Yang plans to only enroll two or three students this year. To select two or three students from thousands of outstanding students, the students who can be selected can be said to be the chosen ones.
Just one day later, Yang Nianlai's company reported to Muyang the work of Xinghai Bank and the investment company in the first half of the year, focusing on the listing of Xinghai New Energy Technology Company.
