"The specific situation is like this, we are not much different from Northrop in the exploration of large edge wing technology, but in the construction of the technical verification aircraft, the Americans believe that our fly-by-wire flight control does not meet the requirements."

Yang Hui, who was extremely helpless, threw the problem to Chief Engineer Yu at this time to see if Chief Engineer Yu, the chief designer of the aircraft, had any good suggestions, to let Yang Hui use the American telex system on the plane, Yang Hui was really unwilling, even if it was a technical verification machine, Yang Hui was unwilling.

Yang Hui is good everywhere, but sometimes he is too greedy, and Chief Master Yu has to cure Yang Hui's greed. If the fly-by-wire system developed by the base is used on the technology verification machine this time, then this is the verification of two key technologies at one time on a verification machine, which is too risky.

"I know what you mean, you want us to make our own fly-by-wire flight control for this technology verification machine, but you have to understand that this time we are testing the large edge strip wing technology, not a digital fly-by-wire flight controller, and if necessary in the future, we can build another fly-by-wire flight control technology verification machine."

The technical risk is quite a big problem, Yang Hui was really persuaded by Chief Master Yu, and even had a pretty good plan:

This time, the technical verification machine is changed on the basis of the Jianjiao 7A, and it can also have other benefits: the data and experience obtained by changing the Jianjiao 7A to the technical verification machine can be of great benefit in the ultimate evolution after the Jianjiao.

In this set of plans, it is not so much to build a technical verification aircraft, but to make preliminary preparations for the side plate Thunder, you can clearly see the performance of the J-7 series aircraft after switching to a large side strip wing. Why not.

It's a good idea, if that's all. The plane allows the Americans to see it and fly it however they want. Anyway, the United States has bought a squadron of J-7, what else is there to keep secret.

The role of the technical verification machine is only to collect the gain data of the large side strip wing, and the new Super Seven will use side plate technology in the future, and it is not intended to develop like the later Thunder Dragon, and it has little to do with telex.

However, what Yang Hui wants now is to break through the fly-by-wire flight control technology, and it is best to break through the digital fly-by-wire flight control technology in the construction of this technology verification machine.

In Yang Hui's plan. The cooperation between the base and Northrop will not be fruitful in the end, and there is only one illusory opportunity to learn fly-by-wire flight control technology.

After this technical verification machine, if you want to break through the digital fly-by-wire flight control technology, you can really only bury your head in hard work. The spirit of hard work is commendable, but if there is a teacher's teaching, it will be much better.

Chief Engineer Yu didn't know these twists and turns in Yang Hui's heart, but Chief Engineer Yu seemed to be just a technical verification machine, and the verification was the large side strip wing technology, not the digital fly-by-wire flight control technology. There is no need to stumble on the flight controller, and the meal must be eaten one bite at a time.

Suddenly, Yang Hui vaguely thought of another plan, and maybe a turnaround.

"That's a real problem. We can't afford to take so many risks at once, so it's up to Northrop to add an insurance policy to the fly-by-wire flight control technology of the new aircraft. ”

What Yang Hui said was exactly the same as what he thought in his heart, and it truly reflected Yang Hui's thoughts. It also seems very good to the chief teacher, this kid has not been completely carried away by the small victory. As long as you dial a little, you can still weigh the pros and cons clearly.

Satisfied with the chief teacher. I turned around and walked back into the office, there was still a lot of work to go on, and I couldn't wait.

Yang Hui is also thinking carefully about the new plan, ready to try it, if it can be completed as planned, even if he can't win all the digital fly-by-wire flight control technology, he can learn a rough idea, and he can save a lot of things when he studies it by himself in the later base.

Hurriedly went to find Brown, it was almost time to get off work, but Yang Hui couldn't wait.

"Brown, you're here, are you calling your family in the U.S.?"

Yang Hui searched everywhere, and finally heard that this guy Brown ran to the telephone hall to make a transatlantic call, but he didn't know what this guy was talking about, so he could only say hello according to the habit of Chinese.

Brown's answer obviously disappointed Yang Hui: "No, I'm on the phone with the company to report on the progress of the project, our technology is progressing faster than expected, and I need to inform the company to make a decision." ”

It turned out that he was talking on the phone about business, this is fate, and he must seize this opportunity to persuade Northrop executives to agree to his proposal, and success may be at this moment.

"Well, this is really a coincidence, I also happen to have a question to discuss with your company executives, please help me buy a few minutes after you finish."

Time is precious, but what Yang Hui wants to say is only a matter of a few minutes, whether he agrees or not depends on Northrop, Yang Hui can explain what he wants to say clearly

"Okay, I've bought you five minutes, please."

Yang Hui knew that it was Ryan, the president of Northrop, who answered the phone on the other side, so there was no need to talk nonsense, at this level, it was to see whether you agree or disagree, disagree, no matter how much you said earlier, it is useless.

"Hello, Mr. President, I'm Yang Hui, the one who came to the United States last time to talk about the project. I have something I would like to talk to you about the technical demonstrator that Brown just mentioned. ”

"Of course, remember, you can be very impressive anywhere, if you have any questions, please say, we have begun to prepare to send technicians to your company, collect your materials and start writing the flight controller, if the speed is fast, we only need a year to see the first flight of the demonstrator."

Ryan was very surprised by the ability shown by Southwest Airlines Science and Industry United Company, so Northrop's work was accelerated again, and the first flight of the demonstration aircraft could be completed earlier, and the two sides could get the details of the big side wing as soon as possible, and Northrop was also looking forward to this aspect.

"Yes, what I want to say is precisely related to the flight control technology of our technical demonstrator, we think that it is correct to hand over the fly-by-wire flight control of the new aircraft to Northrop, but our company also has some ideas of its own, and our company should also participate in the preparation of the flight control rate."

Flight control rate is a major core of fly-by-wire flight control, the hardware of the airborne computer is only one aspect, the flight control rate is to stipulate the operation rules of the airborne computer, a good set of flight control rate can greatly optimize the response speed of the aircraft, reduce the possibility of computer crash.

On the contrary, if the flight control rate is cumbersome, it will cause the on-board computer to reflect slowly, and it is easy to crash, although there is a backup system to take over the control, can effectively ensure the flight safety, but this can not cover up the shortcomings of the control rate writing.

And the most serious thing is that there is a big bug in the writing of the flight control rate, the aforementioned JAS39, and the F22 as strong as the United States have fallen, and the reason is inseparable from the problem of the writing of the flight control rate.

Now Yang Hui said that he wanted to participate in the compilation of the control rate, of course Ryan wanted to deny it, and the technical staff of the Southwest Aviation Science and Industry United Company participated in the compilation process of this thing, so what is the difference between it and teaching it in person.

"No, our flight control rate compilation is very confidential, it must be kept secret, and it is definitely not possible to cooperate in writing."

Ryan's answer was expected, and Yang Hui was not surprised by anything, and he didn't expect to be able to write it with Northrop.

"I know that, what our company means is that our company writes the flight control rate itself, and your staff just needs to say, "Yes" or "No". By the way, we will input our flight control rate into the on-board computer to complete the design of the fly-by-wire flight controller; If it is not correct, our company personnel will write it anew, and then it will be reviewed by your technicians again, and this will be repeated until the flight control rate is written. (To be continued......)

PS: The third update is here, I hope you will support it! Although the results are not very good, they still have to persevere.