Chapter 989： Defects of the engine

"Comrade Simonov, I'm also very happy to see our latest generation of fighter jets, which are about to enter service." Andrei looked at the sky, the fighter jet that just left, from the outside, looks quite similar to the t-50 of later generations. , it can be regarded as the same destination.

"Yes, our generation of fighters, the most important thing is to achieve a good combination of stealth performance and combat performance, and all this has been achieved on our fighter aircraft." Simonov said: "Although it is not as good as Mikoyan's design. The stealth performance of the Bureau is better, but it is also unmatched by our existing fighters."

Stealth, an important criterion for measuring advanced fighter jets, has been achieved by Soviet fighter jets so far, instead of using sci-fi plasma stealth technology, but with a shape and coating scheme. Now, the plane is still yellow, because there is no coating, when it is coated, the plane will become a gray-black fighter!

Andre nodded: "The future sky belongs to stealth aircraft. We must make great strides forward and continue to defeat Western fighters with a crushing attitude."

Crushing attitude! Back then, when Andre was flying the MiG-25, it was considered a crush, but only a pilot like Andre could fly out. Now, any Soviet pilot can fly in a crushing attitude. Equipment is not omnipotent, but without advanced equipment, you will be beaten behind on the battlefield!

"Yes, Marshal Andrei, you are very correct." Simonov said: "We are able to achieve today thanks to your help."

Andrei shook his head, all of this is for the Soviets!

"The Mikoyan Design Bureau's aircraft seems to have many difficulties that cannot be overcome?" Andrei asked Simonov: "Now, why is our fighter plane able to test flight so quickly? Ready to finalize it?"

Andre suddenly came up with such a question. After all, they are all fighters of the same generation. Technically, there should be many common encounters!

Hearing Andrei's words, Simonov was a little embarrassed: "This, mainly because we lowered the index. We originally planned to use the al-41 engine, but, until now, we have not been able to receive a qualified engine, so , We can only use the d-30f-6m engine for the time being. Although the thrust is enough for us to use, the fuel consumption rate has still improved to a certain extent."

Suddenly, Andre was speechless.

It is not so simple to develop a brand-new engine. With the scientific and technological strength of the Soviet Union, it is quite difficult to break through the thrust-to-weight ratio to 11. In the history of later generations, al-41 has never really been realized, even if it is If the Soviet Union does not disintegrate, it will take at least ten years for this engine to mature.

Later generations, after the disintegration of Russia, still encountered engine problems when developing the t-50. The so-called f117s is not a new engine in the true sense at all, but is tinkered on the basis of the al31. The al41 engine of later generations is no longer the engine with advanced technical indicators in the Soviet era.

The Soviets are still facing engine problems, and in order to send the Su-37 to the sky as quickly as possible, the Sukhoi Design Bureau can't wait for the al-41, and can only use the d-30f-6m engine instead!

This kind of engine is also mature, because this is the engine used by the MiG 31. It was modified on the basis of the d-30f-6 twin-rotor turbofan engine developed by the Soloveyev Design Bureau. The engine of this prototype, a single The afterburner thrust is 152 kN, the maximum thrust without afterburner is 93 kN, the engine thrust-to-weight ratio is 6.6, the bypass ratio is 0.4, the fuel consumption rate without afterburning is 0.073 kg/Nh, and the fuel consumption rate with afterburning is 0.194 kg/N Hour.

The volume of this engine is very similar to the al41, so it can be replaced. Moreover, after improvement, the afterburner thrust has been increased to 170 kN, and the non-afterburner thrust has exceeded 100 kN. It is installed on the Su-37. , it is no problem to give play to the maneuverability of the fighter, the only difference is that it consumes more fuel!

In later generations, the test flight of the s-37 golden eagle is equipped with this kind of engine!

The Navy wants this fighter very urgently, so it can only temporarily replace it with this engine, and the Air Force hopes that the performance of the MiG 1.44 will not be compromised, so the MiG 1.44 is still waiting for the al41 engine!

Andrei understands.

"Apart from the engine, are there any other areas where the standard has been lowered?" Andrei asked.

An aircraft is mainly composed of three parts, the body, avionics, and engine, each of which accounts for about one-third of the entire aircraft cost. Now, the problem with the engine has been temporarily replaced by another engine. And the body, it seems that there is no big problem, another major aspect is the avionics!

Hearing Andrei's question, Simonov said: "The only problem we are facing now is the engine. Except for the engine, other projects are progressing smoothly, especially our avionics system. Now, Our radar has completed the development of the active phased array radar, and now it is installed on the aircraft, and it is already an active phased array radar in full state."

Active Phased Array Radar! This is the development direction of future radar, because this kind of radar can change the beam at any time and concentrate all the beams in one direction, which is more helpful to detect stealth aircraft. Moreover, some of the components are damaged, the radar can still be used, and the redundancy is very high.

The Soviet electronic technology was originally backward, but after absorbing the advanced electronic technology of the island countries, coupled with the advantages of the Soviet Union's economic system, a lot of money can be invested in research and development, so the t/r module has long been a breakthrough. , Now, this active phased array radar has been installed!

After all, the active phased array radar of the United States in later generations was also developed after the introduction of technology from the island country! Now the United States has fallen behind the Soviets in this regard!

Andre was very happy. At this time, there was another roar in the sky, and the fighter plane could be seen flying over gracefully.

"What subject is the test flight today?" Andre asked.

"The recovery after entering the spin," Simonov said.

Stall spin? Andre was stunned for a moment, this subject is quite dangerous! After all, the stall spin is a problem that has plagued every pilot since the birth of the aircraft. Moreover, even after rigorous training, half of the pilots could not recover successfully, and the plane crashed and died!