In the afternoon, when Liu Hai got off work, he went to the courtyard of his former father-in-law.

In winter, I have to come to see the bangs every three or five times, mainly because I am afraid that the water pipes and other things inside will freeze and break.

Heating was reinstalled inside the courtyard, and then water and flushing toilets were installed.

Liuhai also built a glass conservatory in the yard, of course, there are radiators for heating, and some green plants are also planted in Liuhai, mainly some vegetables, such as leeks, garlic sprouts, fennel, green onions and other lazy green plants.

The whole street has been re-dug up, the sewers have been rebuilt, and those who have the conditions and are willing to change the toilets can do it, and of course, there are some who are not qualified and unwilling to change it.

There were no problems after looking around, the heating was also hot and the running water was no problem.

In a week, Dabao Erbao will be back, and he will live here then.

Then back to the quadrangle, Liu Hai was recently working on carrier-based AWACS.

The main thing is to look at the various system components of this early warning aircraft, and there is no possibility of copying this early warning aircraft at all.

Although it is also a carrier-based early warning aircraft, the gap between this semiconductor-level early warning aircraft in the 70s and the early warning aircraft when the bangs crossed is too big.

Bangs can only learn its overall structural layout, as well as the overall system composition.

The most critical procedure of the AWACS aircraft is to successfully select suspicious targets from the radar reflection waves of the AWACS aircraft, and lock on to the targets, and also to screen out the most threatening targets with other unique radar characteristics according to the speed and altitude of the targets.

The air is a little better, but the radar is more troublesome to screen the characteristics of ground reflectors.

On the one hand, the performance of the radar depends on its hardware, that is, the antenna, and the level of the chip.

In addition, the algorithm is also very important, the algorithm involves the priority of the threat level of the screening target, and it also involves the response speed, and it also involves the identification speed.

The only way to do this is to put the most basic framework on it, and then optimize it after continuous testing.

Moreover, different hardware matching algorithms are not the same, the structure of the radar antenna, the structure of the radar antenna and the overall performance are different, and the algorithms are also different.

Of course, the framework structure of the algorithm is the same, but the optimization data is different.

Bangs can only be said to be a shelf, because the whole system is too complex, the whole system from design to manufacturing to operation, and then to the continuous optimization of data, optimization algorithms, Liu Hai estimates that a large team may take nearly 10 years.

Especially now that our country can be said to be blank for AWACS.

What bangs have to do is only to build a shelf, even if it is a shelf for bangs, follow-up design, R&D and manufacturing, data optimization, etc., I am afraid it will take at least five or six years.

"The platform of Yunjiu as an early warning aircraft is still a bit small."

"If we can get our hands on DC's aircraft engine technology, then we can produce larger transport aircraft."

It's not that Bangs doesn't want to build a turbofan engine with a large bypass ratio, but if Bangs wants to do it himself, I'm afraid it will take a few years or even 10 years to see if he can make a successful engine.

Turbofan engines with large bypass ratios are completely different from turboprop engines and engines used in fighter jets.

Liu Hai bought DC10 because he wanted his engine, which was the engine of General Motors.

In 2020 the world's three largest aero-engine manufacturing companies, General Motors, Pratt & Whitney, Rolls-Royce.

Of these, the bald eagle occupies two, and the cow occupies one.

These three companies have erected a thick patent barrier in the field of aero engines, coupled with the flight licenses and airworthiness certificates of North America and Europe, any company that wants to make a difference in the field of aero engines will be directly crushed by this huge interest.

The main reason for buying the DC10 was to get a technical license for GM's engines.

Now it is relatively easy for a fat bear to get a technical license, if the fat bear is not good, then don't think about it.

"Big head!" There are too many things involved in AWACS, and the bangs are big to watch.

After looking at bangs for three hours, I felt a little tired, put away the notes I had made, and then went out of the aircraft carrier space to rest.

The next morning, I continued to go to work in the factory, and the little junior brother came again early this morning.

After the summer vacation, the little junior brother had to run to Liu Hai's side every once in a while, and after the homework was finished, he asked Liu Hai to give him a test paper.

After the test paper is over, he will change his toys, and after getting the toys, he will disappear for two days, so he is estimated to pretend to be forced with his friends.

At noon, I took the little junior brother to eat in the canteen together.

In the afternoon, I went out to eat with my junior brother and sister, and then went to the movies together.

The bangs didn't refuse, sometimes the bangs wanted to be picky, but they didn't know what to say.

The first time I watched a movie, I had no experience, and the second time I bought a few bottles of drinks, I didn't expect this to be wrong, because after drinking a drink, I wanted to go to the toilet after sitting for a long time, and it was troublesome to go to the toilet when watching a movie.

The next few times I watched the movie, I bought some melon seeds or beef jerky and the like, and it was not easy to go to the toilet if I ate these.

What Liu Hai didn't know was when he was sitting with his little sister watching a movie.

Niuniu's dealers are in a hurry, and some countries in the East want to buy the full set of technology of the DC10 aircraft, and the transfer amount is about 450 million US dollars.

With such a large sum of money, how can Niuniu's dealers not be in a hurry, but 450 million US dollars must not let Bald Eagle's company make money.

So the dealer personally went to some countries in the East, and carried a full set of black materials for the DC10 aircraft, but there were many shortcomings.

After the dealer arrived, he negotiated with the superior department and found out that it was Mr. Jack who wanted to buy it privately.

This is even worse, Mr. Jack's money is in the dealer's bank, which means that Bald Eagle wants to take $450 million from his own bank, how is this possible?

So when Liu Hai watched the movie with his sister and returned to the maintenance department, Sun Aiguo came soon after.

"Xiao Liu, there are some things that men have to take the initiative, you can't expect a yellow flower girl to speak first." Sun Aiguo came to the place where Liu Haizhu was, and after entering the door, he took off his padded jacket before speaking.

"The leader wouldn't be here for this, would he? I just felt a little embarrassed to open my mouth. Liu Hai thought that Sun Aiguo came here at 10 o'clock in the evening for this matter.

"People are already twenty-five or sixteen years old, just like your junior sister, how simple it is to find someone to marry, what is the purpose of not getting married for so many years, you just make it clear now, if you misunderstand, it won't be embarrassing for long."

"I'll talk about this matter first, there's an urgent matter below."

"The higher authorities agreed to negotiate with Bald Eagle about the transfer of a full set of technology for the DC10 aircraft, but this matter was known to the dealer, so the dealer came to us in person and wanted to cooperate with us in aircraft manufacturing."

"The higher authorities said that they were willing to invest, and they wanted to talk to you." Sun Aiguo finished speaking in one breath.

"Huh?" Liu Hai didn't expect this kind of change, but Rolls-Royce's engine technology is really good.

And after the 70s, Rolls-Royce actually did not have a good time, and after 71 years, it was split due to bankruptcy, and finally reorganized under the leadership of the Niuniu government.

After the split, it was divided into an aero engine company and an automobile engine company.

The Rolls-Royce Aero Engines we usually talk about is actually Rolls-Royce Aero Engines, the two companies were split after 73 years, and of course, Rolls-Royce was acquired by BMW.

The Rolls-Royce logo is the same as the Rolls-Royce logo, except that Rolls-Royce is silver and Rolls-Royce is blue.

Rolls-Royce's aero engines are, to be honest, not worse than GM Pratt & Whitney.

Moreover, Rolls-Royce is not only involved in military fighter aircraft engines, but also involved in air transport aircraft engines with high bypass ratios, and also involved in the power facilities of Big Blackfish.

There are more than 1,300 aircraft in the Gulfstream luxury business jets, all of which are powered by Rolls-Royce engines.

However, later in history, Rolls-Royce's civil nuclear meter company was acquired by Gallic Chicken's company.

The reason why Liu Hai thinks of this company is because this company has a very classic aero engine RB211.

It was the world's first three-rotor engine, and it was thanks to this engine that Rolls-Royce went from a small aero-engine manufacturer to one of the Big Three.

"Can dealers do their domestic? They don't seem to have a big plane to shoot in their country? Although Liu Hai was very willing in his heart, he definitely wanted to say this.

"Dealers looking for a chance to talk?"

"Their country's aviation industry is not good, as for the large passenger planes at all, they have an Airbus A300 next door to the Gallic chicken." Sun Aiguo is now also well aware of the large planes of these countries.

"For dealers to show sincerity, what can they come up with to trade? I bought the DC10 mainly for their full set of mature technology, and the most important thing is the technical licensing of aero engines. ”

"Because if our country designs and manufactures aero engines, then it is inevitable to infringe their patents, because in the field of aero engines, especially civil aero engines, they have a lot of patents." Bangs spoke.

"DC10 complete sets of production technology and mature technology level can indeed improve the quality of our country's aircraft manufacturing technology, as for the aero engine patent you mentioned, this is also a headache."

"So what do you mean now?" Sun Aiguo can understand when he hears Liu Hai's words.

"Let them show sincerity before they can talk about it, now let's talk about it, the bald eagle has a full set of DC10 production technology and technology." Bangs spoke.

"I know what you mean, you want to squeeze them with bald eagles, but in fact, our purpose is just an aero engine?" Sun Aiguo understood at once.

"Well, that's it, my money is in the dealer's bank anyway." Bangs nodded.

"That's fine."

"The various data of the DC10 brought by the dealer feels bad, on the one hand, the fuel consumption is very high, and the failure rate is not low, the dealer said that the DC10 is already an obsolete and outdated product." Sun Aiguo spoke again.

"It's a bit fuel-guzzling for passenger transport, but it's very efficient for freight." Bangs nodded.

Sun Aiguo hurriedly went to report overnight.

After hearing the feedback, the dealer is also a little numb, people are interested in the overall manufacturing technology and overall manufacturing process of the large aircraft, as well as the complete processing equipment, and what can they come up with?

The dealer had to go back to Niu Niu to take a look, and finally found that the only thing he could get his hands on was the aero engine.

The dealer set his sights on the empty A300 next door again, but the thought of making money next door made the dealer uncomfortable, and it was better to let the bald eagle make money than to make money next door.

Therefore, dealers can't make up their minds for a while, and a single aero engine must not be able to compare with other people's complete set of large aircraft production technology.

Liu Hai didn't expect the dealer to come and insert a lever, but Liu Hai also knew that his money was deposited in the dealer's bank on Niuniu's side, and the dealer was definitely unwilling, so such a large sum of money was spent in vain to the bald eagle.

The higher-level department is still continuing to communicate with Bald Eagle, of course, the time from communication to transaction experience of this transaction must be relatively long, because each condition needs to be considered repeatedly.

Bangs will put this matter aside, anyway, these things are not in a hurry, in international transactions, the more anxious you are, the more you will become the target of others.

The second Y-9 has undergone rigorous factory testing and has already been delivered, while the third prototype has already begun final assembly.

After the delivery of the Y-9 aircraft, pilots will be trained first, and then more training will be carried out, such as airborne and airdropped.

The individual anti-aircraft missile and battery projects in the bangs will not bear fruit before the year.

"Finite element analysis software!" Liu Hai has always wanted to work on this project, and the finite element method was to calculate the structural strength of the aircraft at the beginning.

By the time of the bangs, the finite element method had been widely used in almost all scientific and technological fields due to its high efficiency, and it was later integrated with CAD software.

This is the kind of design software that Liu Hai used on aircraft carriers, and of course, this design software of Liu Hai is the latest in 2020, and it is so powerful that all scientists in the 70s can't believe it.

Liu Hai was ready to finish the task at hand, so he came to do this, using the supercomputer of Dongfang University to do it.

The supercomputer of Dongfang University was personally invested by Liu Hai, or it can be said that it was donated by Liu Hai.

The reason why Liu Hai didn't come up with this kind of software earlier was because we didn't have relevant talents at that time, and the supercomputer in Dongfang University had been running for a year, and Liu Hai decided to put up this software shelf next year.

Seeing that Dabao Erbao was about to come back, Liu Hai decided to have a good talk with his junior sister.

Liu Hai felt that if he continued like this, he would delay his junior sister, after all, he was already twenty-five or sixteen years old, and it was the most beautiful season in his life, so he wanted his junior sister to recognize herself.

Liu Hai's own personal problems don't matter, anyway, he has a son, and there is no shortage of women, if it weren't for the fact that the superior department didn't worry about himself, Liu Hai didn't plan to get married again.

(End of chapter)