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Chapter 383 Digital Telex

Although different aircraft have different flight control rates, all ideas are the same. One model is successfully developed, and another model will continue to emerge.

Even a specialized stabilization aircraft is to simulate the flight characteristics of different aircraft by inputting different control rates, achieving the purpose of one aircraft that can study the flight laws of many aircraft.

"Now, our flight control hardware has been developed, and we have specially built a stable aircraft." Song Wencong said: "We used J-Seven to modify a tele-speed control stable air test aircraft to conduct tele-speed system experiments."

Historically, it was modified from the J-6. Now, in order to speed up the experiment, Cheng Fei modified a J-Seven for experiments, and the front cabin was converted into a pilot cabin for review and testing. The rear cabin of the fax control system was used as a safety pilot cabin, while retaining the original mechanical control system. The pull rod between the two cabins was passed through an electromagnetic clutch to coordinate the fax control and the disengagement and engagement of the mechanical longitudinal front and rear poles. In this way, when conducting the fax control experiment, once the fax control failure occurs, the fax control will be carried out.

The emergency shutdown switch can be operated using mechanical operations. This is also the reason why the two-seat J-School J-Seven has been modified. It has equipped it with a digital pneumatic stabilization system, an analog electro-hydraulic servo human sensing system, a digital target tracking and display system, an onboard data acquisition and recording and telemetry transmission system, a test signal amplifier, an atmospheric spoiler signal generator and various sensors, converters, electrical and hydraulic sub-components and other components. The hardware development has been completed and is ready for test flight.

"Feed-by-wire operation is a new thing. In foreign countries, many fighter jets have failed one after another when using freight-by-wire operation. We cannot make the same mistakes, we must use scientific laws to do things." Mhamad said: "Feed-by-wire operation, hardware is very important, and software is even more important. How is your software development progress?"

For telex, the pilot no longer controls each rudder surface. The pilot inputs signals to the flight control computer by pushing the operating rod. The flight control computer judges the pilot's intention and controls the action of each rudder surface. In this way, the quality of the program directly determines the flight quality of this telex system.

Hearing such professional questions from Mhamad, Song Wencong said: "Now, we are increasing our strength to overcome this difficulty, but this is a new system. We lack sufficient professional talents and leaders. I want to take this lead by myself and overcome the difficulties together."

There is a lack of leading figures. Song Wencong is the chief designer of the aircraft. At the same time, he also needs to take the lead in developing flight controls.

There is not much to study. Engines, avionics, and these difficulties have been overcome, and only one body is left. The most important thing is this flight control.

However, after all, this is a design fighter jet, and there are all aspects to consider. The chief designer generally does not serve as the person in charge of a specific item.

When he heard Song Wencong's words, a man suddenly appeared in his mind and said, "Don't there anyone named Yang Wei here?"

Yang Wei is a famous person in later generations because he is Cheng Fei's pillar and the chief designer of the J-20!

Born in 1963, he graduated from Northwestern Polytechnical University in 1985 with a master's degree in engineering. In the same year, he was assigned to work at the Chengdu Aircraft Design Institute of China Aviation Industry. Now, he has just been admitted to Chengfei for one year and has low qualifications. He is just a new researcher.

But Mhamad knew that this was a young engineer, who was also full of ideals and ambitions, and had the spirit of hard work. Back then, when he was developing the J-10, he was the organizer and pioneer of the telex flight control system. Without any experience in China to learn from, he studied, figured out and understood a lot of technical information, and led other technicians to carry out a lot of pioneering work, implemented digital simulation and principle tests throughout the system, and finally determined the plan and overcome the difficulties. When the J-10 was tested, the first flight was quiet and unstable, and during the entire test flight, there was no crash due to flight control.

Later, he became the chief engineer of the two-seat J-10, the foreign trade Super Seven, and the new J-20 fighter jet, and became the fighter jet manufacturing expert of the Republic Sky. It was precisely because of him that he had powerful self-developed fighter jets in later generations.

Now, although Mhamad proposed this person, it was a bit abrupt, but Mhamad only had to find an excuse. For example, through the researchers here on his side, he learned that Yang Wei was very outstanding. Now, Cheng Fei needs such a person the most to stand out.

"Are you talking about the graduate student assigned to last year?" Song Wencong said: "He is indeed very motivated to study, but he is too young after all, and he is only twenty-three years old this year."

Even if you know Yang Wei's age, it seems that Song Wencong has a very deep impression of Yang Wei.

"The development of new fighter jets requires young blood." Mhamad said: "Now, the third-generation aircraft abroad are flying all over the sky. The Soviet Union and the United States already have their own third-generation aircraft, and Europe is also actively preparing for joint development. If we want to achieve leapfrog development, we have to use a large number of new people. Although they are not experienced, they have the initiative to study hard and are good at breaking the rules. Our third-generation aircraft needs such people."

Song Wencong nodded and said to the person next to him: "Call Yang Wei over."

This kind of meeting is not something that a graduate student who has just been assigned to come in. After all, even the chairman is here.

Mr. Deng looked at the young man who came in with interest, and was very excited when he saw him.

"Yang Wei, your reputation is very good. Even the president of our friendly neighbor Pakistan knows your name." Mr. Deng said half-jokingly.

"Hello Chairman, Hello President." Yang Wei said: "I am very excited..."

"Tell me, what do you think about our digital telex?" asked Mhamad. Although the No. 10 aircraft is an important project of the Republic, with good relations with the Republic, Pakistan said that it would be equipped, so there was absolutely no problem. Pakistan in later generations had to use the Super Seven fighter jet with poorer performance because of the funding problem.

"I think that if we want to achieve leapfrog development, we need to adopt advanced technology. We should adopt the vxi bus structure to carry out our measurement and control work, so that a large number of measurement and control programs can be simplified and optimal. At the same time, we should build a test bench for ground measurement and control our digital telex, completely simulate various situations in our flight, expose various problems through the ground, and improve our flight control programs." Yang Wei had a series of ideas in his mind. Now, he did not keep it in this place, and he said it all.

Building a test bench on the ground is the Iron Bird Platform, which can expose a large number of problems and improve your own programming, so as not to leave the problems in the air.

Mr. Deng looked at Song Wencong and saw that he nodded constantly. Obviously, the experimenter below did not express these ideas before, and it was not until now that he finally expressed his ideas.

"In this case, how long do you plan to improve flight control?" said Mhamad.

"In a year," said Yang Wei: "If we follow my ideas, in one year, I believe that our three-axis, four-degree digital telex can be used to make hardware and have completed the experiment. The main thing is the software writing problem. Through the test bench, we can quickly find various problems."

In later generations, Yang Wei also spent one year completing three years of work and successfully completed this kind of flight control.

"Okay, Yang Wei, I will now appoint you as the chief designer of the flight control project. We will leave all the flight control researchers to your command." Song Wencong said. He discovered that Yang Wei was indeed capable. At this time, he immediately promoted him without any restrictions.

Inside Chen Fei, there were many people. The researchers were looking at the relationship and how many gifts were given. The people in the key leadership positions were all a group of people who catered to the horse. Even the chief designer was good at shirking responsibilities and was very happy to win the credit. When the J-8 was successfully developed, he hurriedly equipped the troops, but when the troops flew, they found that the rudder surface of the rudder trembled, which almost caused many flight accidents. The troops reacted. As a result, Chen Fei's chief designer insisted that it was caused by the wrong operation of the flight troops. Finally, the flight commander slapped the table in front of him, and was forced to admit that it was a design problem and re-modified.

Cheng Fei is full of vitality. If you want to do something, you must be a capable person, just look at your skills and abilities! The 2016 Yang Wei took over the burden of flight control since then, which is an example.

"In order to make the fighter more combat-effective, advanced flat-slit gap radar is on the one hand, and on the other hand, we also need to see the advantages of helmet sights, large off-axis fighting missiles, and optoelectronic systems." Mhamad continued: "I don't know how our imitation work is going?"

During several air battles with the Soviet Union, through wreckage and pilots who searched for parachuting, Pakistan obtained several sets of helmet sights and R-73 missiles, as well as advanced Oeps-29 optoelectronic sighting equipment. These equipment were transported to Cheng Fei and studied with Cheng Fei's personnel.

In later generations, when encountering complex electromagnetic interference environments, the radar may fail, and new means are needed, such as this photoelectric aiming equipment, which can be upgraded to photoelectric radar to guide its own missiles.
Chapter completed!
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