This is the J-13.

If we talk about the pre-research of this project, it can be traced back to the 60s, with the example of the Vietnam War, researchers found that the bulky heavy fighter in the air can not compete with the small light fighter, the air combat mostly takes place at medium and low altitude transonic speed, or visual combat, so it needs to have a high transonic speed of circling, rising and accelerating capabilities, so the idea of developing a front-line fighter germinated.

On March 12, 1972, the team led by Fang Baorui, deputy director of the General Office of the 601 Institute, officially submitted the design plan of the short take-off and landing fighter to the Sixth Academy.

On September 26, 1972, the Sixth Academy of Sciences made a reply and issued the development of the aircraft as the No. 2 task, pointing out: "The No. 2 task is a front-line fighter aircraft, highlighting maneuverability, and the direction is correct, but it is necessary to vigorously reduce the total take-off weight, and strive to achieve or exceed the thrust-to-weight ratio of 1.2, and strive to extend the endurance time compared with the J-6 under the premise of ensuring mobility."

This fighter, known as Mission No. 2, was later named J-13.

In the blink of an eye, seven or eight years have passed, this fighter is being developed one after another, the indicators are constantly adjusted, and now it is taking advantage of the east wind to have a new development, this is the MiG-23 that I brought back from the last trip to Egypt!

The MiG-23 is of great significance to the development of domestic military aircraft, such as its nose, which is ready to be transplanted to the J-8, its variable swept wing structure, which is valued by Hong, and at the same time, it also has a high-thrust turbojet engine in the tail!

The MiG-23 fighter uses the R-29-300 engine, which is a twin-rotor, annular combustion chamber, pneumatic nozzle, high-temperature turbine, and continuously adjustable turbojet engine with afterburner thrust. The maximum thrust is 81 kN, afterburner thrust is 122.5 kN. Thrust-to-weight ratio 6.5.

It can be said that it is simply tailor-made for the J-13!

J-13 was previously planned to use Spey, but the thrust was insufficient, and later there was a plan to use turbofan-6, but this engine has been in difficult birth, and after the introduction of China, it was found that this MiG-23 engine is better than the turbofan-6 engine planned to be equipped with J-13 aircraft in unit thrust, thrust-to-weight ratio, medium and low altitude subsonic altitude, and speed characteristics.

To put it simply, an indicator, such as the Mirage 4000 that Qin Feng saw, uses twin engines, and the climb rate exceeds 300 meters per second, which is already an existence against the sky, but if the engine of this MiG-23 is installed on the J-13, the climb rate is the same as that of the twin Mirage 4000!

Now the 601 Institute is full of interest and enthusiasm, hoping to make this fighter out and become the main fighter of the domestic air force in the future.

Qin Feng's flight skills are outstanding, and at the same time, Qin Feng's theoretical reserves are very rich, and the 601 Institute also hopes that such test pilots can join in and make the research and development of the J-13 icing on the cake.

Now, the J-13 is still a top-secret project, and it is said that Qin Feng can't know about it, so Mr. Gu can only say a few words: "The overall structure of the J-13 fighter we plan is similar to that of the F-16, with edge strip wings, high angle of attack performance, and hovering performance." ”

Seeing that Qin Feng didn't speak, Mr. Gu continued: "Let's continue to walk Li Xiangyang's plan in the air, with a self-weight of only 9 tons and high mobility..."

Li Xiangyang's plan in the air? Hearing Mr. Gu's words, Qin Feng immediately felt that something was wrong.

The investigation to the West has broadened Qin Feng's horizons, and in future wars, electronic technology will play an increasingly important role, and his own J-7 II fighters are trying to replace the advanced avionics systems of the West, so that the combat capability has been greatly improved.

After all, our side has not even realized a cannon hotline, and the West is already missile-based.

At this time, is he still advocating Li Xiangyang in the air?

Although this plan has 9 tons and two air Li Xiangyang, the idea is wrong.

"What onboard equipment is it equipped with?" Qin Feng asked.

Seeing that Qin Feng was interested, Mr. Gu continued: "In order to control the maximum take-off weight of the aircraft, and at the same time, in view of our current technical level, the aircraft still needs to be classified, and the mass production is the daytime type, and the radar is not installed, but the rangefinder is installed; In addition, a small number of models with radars are only used for all-weather interception, and their maneuverability is poorer. Firepower is equal to aircraft artillery and close-range combat missiles. ”

After hearing Mr. Gu's narrative, Qin Feng shook his head again and again: "Mr. Gu, this idea is wrong, we can't take such a wrong path again!" ”

Look at the West, all are advocating advanced radar and fire control systems to find and lock targets at long distances, and this is definitely the direction of the future.

Although the hit rate of missiles in the Vietnam War was very low, the missile system is constantly maturing, and in the future air battles, it will definitely be missile-based.

Hearing Qin Feng's words, Mr. Gu's face suddenly changed, and he said, "What did you say?" Say we're thinking the wrong way? ”

"Yes, Mr. Gu." Qin Feng said: "I remember that you once encouraged me to speak boldly, so this assertion of mine may make some comrades think that I am exaggerating, but I still want to tell you my opinion. ”

In this era, you must be careful when you speak, although it is not like in previous years, but it is still a truth that trouble comes from the mouth, talk less and do more.

Qin Feng couldn't help it, he knew that he was just a small test pilot, and he couldn't interfere with the research and development direction of the higher-level scientific research institutions, but after reading so many foreign documents and going abroad to read them, he felt that he could still grasp the pulse of the future.

I want to explain my own point of view and help everyone analyze the real direction of the future.

"When we were studying the Vietnam War, we could see a strange phenomenon, the MiG-21 had poor performance and poor functions, and even once played a comparable exchange ratio with the US F4 fighter. So, we believe that quantity prevails over quality, and we believe that combat in the air exists mainly at close range. Qin Feng looked at Mr. Gu's face was a little unsightly, but he still said his opinion.

This optimistic judgment completely ignores the political situation of the Vietnam War at the time, the fact that electronic technology was still very imperfect in 60-70 years, and even the high degree of peculiarities in Vietnam's geographical and climatic conditions. Now, if we continue to interpret the battle over Vietnam in this one-sided way, it will continue to be disconnected from the rest of the world, widening the gap with the world, and the phenomenon of low-performance fighters being able to exchange cheapness for numerical superiority and then win battles will become more and more rare in the future. ”

Qin Feng hoped that he could talk about Mr. Gu, since he said that Mr. Gu could listen to the advantages of air intake on both sides, then he should be able to listen to it now.