Chapter 85： Improve flight control, fly-by-wire system

"Yeah, our electronic level is very far from that of the United States. Even the reliability of the American Sparrow missiles over Vietnam is quite poor, not to mention our air-to-air missiles." Simonov said.

The strength of the Sukhoi Design Bureau lies only in the development of aircraft, and the missiles are designed by other design bureaus. However, Simonov also knows that his own missiles are indeed not as advanced as the Americans.

"Especially our semi-active radar missiles have a very high target drag rate. During combat, I would rather hang missiles with infrared seekers than semi-active radars." Andre said: "I really don't know. How was it stereotyped at that time, and the blackbirds that beat the Americans, we don't have this level."

"Then how did you get it down?" Simonov asked.

"Cannon." Andrei said, "I modified my fighter plane at the Sokolovka base, added two cannon pods, and used the cannon to blast the Americans down."

Cannon! Using a cannon at three times the speed of sound, Simonov's identity as an aircraft designer, immediately knew how dangerous and crazy this was. It can be said that if you are not careful, your life will be in danger. The goodwill of the fearless pilot also arises spontaneously.

In fact, the first time he got the EP-3 aircraft and knew that his own pilots used the collision tactics to get it down, Simonov was already very satisfied with Andrei, and he also asked his superiors for instructions that he could transfer Andrei to The Sukhoi Design Bureau came to be a test pilot, but the superiors did not agree.

"It seems that the MiG-25 is indeed a solid fighter." Simonov said: "The vibration of the cannon is quite huge at three times the speed of sound, and it may disintegrate directly in the air."

"Yes, our MiG-25 is quite strong. Stainless steel has natural advantages in this regard, but MiG-25 also has its own shortcomings." Andre said.

The Mikoyan Design Bureau and the Sukhoi Design Bureau are in a competitive relationship within the Soviet Union. Both sides are constantly competing, but in private, the two sides are sympathetic to each other. I have to say that the products of the Mikoyan Design Bureau are very representative. .

Now, when the first-line pilot said the advantages and disadvantages of this kind of aircraft, Simonov was immediately very interested. Perhaps, he could be greatly inspired by the words of the first-line pilot.

The whole hall is still staggered, and in a corner of the hall, a conversation that will determine the future advanced fighter planes of the Soviets has already begun.

In fact, Andre also knows that now is a good opportunity to get to know those big bosses, which will be very beneficial to his future development. However, his current status is still very low, and getting acquainted with these high-ranking officials prematurely has advantages and disadvantages, and now, Andropov is like his own old husband, marrying Yekaterina to him , he already has a big backstage. And the most important thing for him is to continuously accumulate his own strength in the army. Moreover, you can't be missed by those ambitious people. At this time, it's best to keep a low profile.

And communicating with this famous aircraft designer is Andrei's favorite. After all, Andrei has a deep understanding of the designer's most outstanding work, the Su-27, and flew it by himself. J-11, isn't it an imitation of Su-27?

"One of the biggest problems with the MiG-25 is the flight control system." Andre said: "The use of hydraulic systems to operate each rudder surface is also the most common way for our current fighters, but this method requires Judging by the pilot's rich experience, for example, the high-altitude stick is small and the low-altitude stick is large, and if the pilot is in a fierce air battle, he may not fully notice his height, and may make misjudgments. Especially the MiG- 25. The huge rudder surface is designed to adapt to the thin air at high altitudes, and at low altitudes, the aerodynamic torque is often too large. Once, it was for this reason that I entered a stall spin.”

Stall spin can be said to be a killer of plane crashes! Only the best pilots can recover from a spin!

Simonov listened very carefully. Now that the prototype of the T-10 has been manufactured, it also uses a hydraulic system, and the structure of the same double-engine and double-vertical tail is the same. This problem has become very prominent.

"Then how should it be improved?" Simonov asked.

"The flight control system must be improved and digital telex is used!" Andre said: "The joystick, rudder, and control are all a displacement and force sensor, and the signal is input to the computer, so that the computer can determine how each rudder surface of the aircraft should be Action, in this way, the computer will synthesize the altitude information and make the correct choice!"

Telex! Andre clearly remembered that in the history of the development of the Su-27, he did not intend to use a complicated telex, but still planned to use a hydraulic control system. As a result, the prototype fell due to the flight control. The famous test pilot Yev It was only after the sacrifice of Gurney Sonoyov that the engineers of the Sukhoi Design Bureau realized the importance of the flight control and adopted the fly-by-wire operation.

However, at that time, it was limited by the Soviet Union's electronic technology, and the three-degree analog telex was used.

In this era, the American F-15 adopted a dual-redundant, high-authority analog control stabilization system, which was actually the first-generation fly-by-wire system, plus a set of mechanical backups. You know, the American F-15 began to fly in 1972, and at this time, the Su-27 was still in the design of the prototype. Historically, the first flight did not begin until 1977.

The Americans later improved the F-15 into a four-degree digital telex. As for the F-16, it was developed with a digital telex at the beginning, which was much beyond the Soviet Union.

Although the telex technology will increase the complexity of the aircraft, if you want to have a first-class fighter, you must overcome the technical difficulties of the telex system! In later generations, Huaxia's Chengfei also made great efforts to develop a four-degree telex, and only then had an advanced fighter such as the J-10.

Digital telex? Hearing Andrei's words, Simonov was taken aback for a moment. In the Sukhoi Design Bureau, he never thought about it. In terms of electronic technology, the gap between the Soviet Union is not small. It is quite difficult to develop such a set of flight controllers. of.

However, within the design bureau, it is believed that the telex system is a technical difficulty that must be overcome in order for the fighter to have first-class mobility. If you continue to use manual control, it is almost impossible to complete Welcome to reading, the latest, fastest and most popular serial works are all inMobile users, please go to read .