(PS: Explain in advance, rocket fuel is not gasoline, rocket fuel is not gasoline, rocket fuel is not gasoline, important things are said three times, I will not let everyone continue to complain about me at this point~~Lala~~)

Confidentiality and efficiency are the main reasons for Liu Qingquan to come up with quantum communication technology, of course, in addition to these two, other electromagnetic wave communication technologies have all the advantages, and the impact on the environment and biology is almost negligible.

In the high-speed flight of flying cars, the traditional electromagnetic wave communication technology can not solve the needs of navigation communication and positioning, and quantum communication technology can be very perfect solution.

Quantum communication technology is still in a state of theory and laboratory on the earth, and there is still a considerable gap from popularization and practicality, and the technology that Liu Qingquan came up with came from Seed Space, and in the early scientific research of the Alfa person, he had already studied all kinds of quantum-related technologies clearly.

Now it is equivalent to giving Zhou Jingbo a book and letting them learn, as long as they experiment according to the content of the book and manufacture relevant equipment, which can greatly shorten the research time, and I believe that it will not take too long to develop a mature quantum communication technology for installation on flying cars.

"Jingbo, I have some information about quantum communication technology here, you take it to study and research, come up with mature technology as soon as possible, and we will quote it to the flying car" Liu Qingquan took a USB disk and handed it to Zhou Jingbo.

"Boss, there are good things again, quantum communication technology, haha my graduate tutor is also studying this, now, maybe I can surpass him" For Liu Qingquan to take out quantum communication technology, Zhou Jingbo was not surprised at all, even the Universe Yuan Force cultivation method can be taken out, what else is strange.

Everyone actually had doubts in private, but about the technology, if you ask Liu Qingquan, he can discuss it with you clearly, and it looks like he has researched it himself, plus Liu Qingquan himself is very legendary, and everyone does not have too many doubts.

"Don't be too happy, the information is given to you, if you can't come up with mature technical products as soon as possible, see how I clean you up" Liu Qingquan jokingly said, Liu Qingquan has always been hot with these researchers, and everyone has a better time.

"Boss, you can tell me a time, otherwise I won't be motivated, it's better to give some more money" Zhou Jingbo was obviously very aware of Liu Qingquan's temper, and smiled and put forward a bet.

"How about a month? I'll raise it up," Liu Qingquan said with a smile.

"Deal, plus invite the people in my group to have a week's supper~ Sister-in-law Li's house" Zhou Jingbo readily agreed.

"Good~~"

"The big guys have heard it, the boss is going to invite us to have a week's supper, or Sister-in-law Li's house, are we going to eat this supper?" Zhou Jingbo said happily to his teammates next to him.

"It's settled~~ Hahaha" The team members naturally coaxed, as if they had already eaten their mouths.

Liu Qingquan shook his head, smiled and left here, coming to his own aerospace research institute, ready to continue to concentrate on anti-gravity rockets.

Because Liu Qingquan led the team, the entire rocket research team is currently the largest research team in the research institute, with more than 10 research laboratories alone, dozens of research teams, and more than 100 people participating in the research, and the number of people is constantly increasing.

The traditional rocket structure is generally composed of the head, the head fairing, the oxidizer tank and the fuel (incineration) tank, the instrument compartment, the interstage section, the engine thrust structure, the tail compartment and other parts, and the parts that need to be separated have a separation connection device.

Liu Qingquan divided the research topics that need to be involved in the rocket, and there are more than 10 laboratories such as the overall design research laboratory, the laboratory for the study of fuels and catalysts, the engine research laboratory, and the instrument and satellite research laboratory.

The laboratory then splits its own research topics, such as the overall design research laboratory, and splits its own research topics into multiple groups such as balance design group, structural design group, dynamic flight design group, etc., for separate research.

And Liu Qingquan himself personally led the team to study the reference of the key anti-gravity launch technology in rockets, because there is no precedent for the use of anti-gravity flight technology in traditional rocket technology, and everything needs to start from scratch in this regard.

Traditional rockets or missiles generally use multi-stage propulsion structure, that is, most rockets are multi-stage rockets.

A multi-stage rocket is a carrier vehicle composed of several stages of rockets. Each stage is equipped with an engine and fuel, the purpose is to improve the continuous flight ability and final speed of the rocket, starting from the first stage of the tail stage, each stage of the rocket fuel will automatically fall off after running out, and the next stage rocket engine will start to work, so that the aircraft will continue to accelerate.

Multistage rockets can be series, parallel, or series-parallel, but the commonly used forms are series-parallel and series-parallel. Tandem is to connect a plurality of rockets into a series through the interstage connection/separation mechanism, the first substage is at the bottom, first work, after the work is completed, it is abandoned through the connection/separation mechanism, and then, the upper stage rocket works in turn and is abandoned in turn until the payload enters the flight trajectory; Parallel connection is to connect multiple rockets side by side, and the surrounding sub-rockets work first, and after the work is completed, they are discarded in turn until the payload enters the flight trajectory, and the core stage rocket in the center works last. Multi-stage rockets connected in this way are also known as strap-on rockets; If the core-stage rocket itself is a tandem multistage rocket, this form is series-parallel.

The multi-stage rocket can throw away the unwanted mass, so that during the flight of the rocket, it can obtain good acceleration performance and gradually reach the predetermined flight speed; At the same time, because the engines of each stage work independently, the engines can be designed according to the flight conditions of each stage, so that the engines are in the best working condition, so as to improve the flight performance of the rocket; Multi-stage rockets can flexibly choose the size and working time of each stage of thrust to adapt to the requirements of the launch orbit, the requirements of orbital measurements, and the requirements of manned spacecraft for flight overload.

Of course, multi-stage rockets also have their corresponding shortcomings, complex structural design, and a large number of engines; The interstage segments need to be added between the stages for connection, and the number of separations is large; The structure is slender and the bending stiffness is poor, and it is not easy to achieve aerodynamic stability; All these reasons reduce the reliability of multi-stage rockets, and at the same time increase their costs.

Multi-stage rocket is the most mainstream rocket and missile technology today, and it is also the most mature technology, which is widely used in the aerospace field and military missile field.

Even the most bullish Spacex technology company in the United States, although it claims to be a recovery rocket, but in fact, it is still a multi-stage rocket technology, its rocket retains a first-stage rocket for use when returning to the ground during the launch process, and when it is recovered, it first relies on the earth's gravity to suck into the atmosphere, and when it reaches a certain altitude, the last stage of the rocket begins to ignite and attack, and the rocket arrives at the predetermined location for landing to achieve recovery.

According to Liu Qingquan's design, the rocket equipped with an anti-gravity engine should be an integrated structure, with only one stage, and no objects need to fall off during the launch.

Most of the multi-stage rockets are designed to get rid of gravity, one stage after another, the whole rocket is very long, and the height is generally 45 meters to more than 50 meters when it is erected, and dozens of floors are so high; However, what is really going to be used in space is actually the top instrument compartment, which is only a few meters high.

With anti-gravity technology, there are no so many rockets to get rid of gravity, and relying on anti-gravity technology, the entire rocket launch process should be more fuel-efficient than traditional rockets.

The structure and design of the rocket are relatively much simpler, such as the design of the interval between the rocket stages and the stages can be completely discarded, the reliability of the overall design will be very stable, and the cost will be much lower.

Multi-stage rockets are generally composed of first-stage, second-stage, third-stage and even N-stage rockets, and the lowest rocket is actually the same, consisting of a fuel tank and an oxidizer tank, which are linked to each other with intersections, and the lower-stage rockets will automatically fall off after the work is completed, and the higher-stage rockets will be ignited and then propulsed, one after another.

At the top of the rocket is the instrument compartment, the satellite or spacecraft launch bracket, the satellite or spacecraft, and the fairing, which are the most valuable things of the rocket, and they are also the purpose of the work of the N-class rocket below.

Compared with traditional rockets, the design of anti-gravity rockets is much simpler, and the N-stage propulsion rocket can directly leave the next stage, and the head design can be the same.

The simple design can greatly improve the stability and reliability of the rocket, and at the same time, the environment required for rocket launch is also greatly reduced, because there are no falling parts, and there will be no accidental casualties and losses due to falling off parts.

Liu Qingquan listened carefully to the report of the latest situation in each laboratory, and at the same time kept writing down the problems they encountered with a pen, and told each other their thoughts and considerations when they encountered something that they could solve immediately.

"Boss, this is the structural diagram designed by the overall structural design team, you can take a look at it and give some advice" A researcher handed over a rocket design drawing.

"Hmm~ I'll take a look first" Liu Qingquan took the drawings and looked at them slowly, Liu Qingquan is also a very serious and careful person at work, especially those who are engaged in technology, and they can't be sloppy in the slightest, because many times it will cause major disasters because of a little negligence or sloppiness.

Like January 28, 1986: The U.S. Space Shuttle Challenger exploded 72 seconds after liftoff from Cape Canaveral, killing seven U.S. astronauts, including a teacher. The reason for the crash was that the O-ring at the bottom of the solid fuel tank was cold shrunk due to the low temperature, and the sealing effect was reduced.

For this aspect, the research institute of Qingquan Science and Technology has always had very strict requirements and management, and all things must be serious and careful, and there can be no sloppiness!

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