"A red heart, prepare with both hands, relying on the J-7, we have a weak heart." Qin Feng said: "The J-7 is nose intake, it is impossible to install a large-caliber radar, and it does not even have a medium-range interception capability, so it can only learn from Li Xiangyang and fight bayonets in the air." It would be nice if we had new fighters. ”

J-7 has long been behind, only China takes it as a baby, because the country's scientific research strength is too backward, and now, some test pilot brothers, in the test flight of Shenyang's J-8, is just a double-engine overhaul of the J-7, that is, there are constant failures, not to mention the new J.

"So, what do you think of my model?" Song Lao picked up the J-9 model on the table.

Song Lao asked now, of course, he was testing Qin Feng to see if his flight theory was solid.

Test pilots are not ordinary pilots, test pilots can be said to be engineers among pilots, not only to have first-class flight literacy, but also to have first-class aviation technology.

When a pilot is on a test flight in the sky, once faced with a malfunction, he must immediately judge where the fault appears and immediately come up with a targeted plan, because it is impossible to do this without a comprehensive understanding of the fighter.

Although Qin Feng is young, he has always been diligent in his studies, and he doesn't know how many aviation professional books he has read thoroughly, and how many aviation frontier magazines at home and abroad he has read.

Now, looking at the fighter in front of him, Qin Feng became interested: "The biggest advantage of the canard layout is that it can improve the maneuverability of the aircraft, but its control is also the most difficult, if my guess is correct, it should be our J-9 fighter model, right?" ”

Qin Feng's question made Song Lao stunned for a moment, this young man in front of him could actually recognize the J-9?

That's right, the J-9 project is confidential, and the specific data of the fighter is also confidential, and the establishment of the J-9 model, etc., in the Ministry of Aviation Industry, I don't know how many times it has been discussed, after all, it has been ten years, and in the team of test pilots, it is nothing to know the J-9 project.

They just don't know the specific plan of the J-9, and now when they see this model, Qin Feng thinks about it.

Song Lao didn't nod or shake his head, and continued to ask Qin Feng: "Young man, go on." ”

Hearing Song Lao's words, Qin Feng continued to say his thoughts: "Song Lao, this aircraft has undergone many changes, but until now, if you talk about it in private, I personally think that its basic design indicators are outdated. ”

"Until now, our Air Force still wants to pursue high-altitude and high-speed, which is already outdated thinking, and abroad, such as the Vietnam War, it has been confirmed that high-altitude and high-speed is not desirable, and maneuverability is more important."

When Qin Feng said this, the pupils of Song Lao's eyes became significantly larger, and he felt that his body was trembling with excitement.

These thoughts were all Song Lao's own inner thoughts, and he himself did not elaborate on these thoughts, but he didn't expect that Qin Feng, a test pilot, would be able to see the problems keenly.

Yes, high-altitude high-speed is outdated.

When the J-9 first began to put forward project requirements, the Air Force was so ambitious that it did not take into account the domestic industrial base, and at the same time, it did not grasp the world's aircraft development trend.

In the 70s, the aviation industry leading group proposed a ceiling of 25 kilometers and a flight Mach number of 2.5, which was also referred to as double 25.

Such a requirement is actually beyond the domestic level, and as a result, at that time, the MiG-25 deeply stimulated the country, and began to propose double 28 again.

A few months later, the meeting was held again and it was realized that the existing technology was not up to the mark, that the double 25 was too small, the double 28 was too high, and that it should be the double 26, that is, the maximum Mach number used was 2.6, and the static ceiling was 26 km.

As a result, after a period of work, it was found that the ceiling index was too high, the engine performance could not be reached, and the development of the J-9 aircraft may be stranded.

In this way, it has been grinding until 75 years, and the indicators have been adjusted, with a maximum Mach number of 2.5-2.6 and a ceiling of 23 kilometers.

Looking at the years of development of the J-9, the specific indicators have changed repeatedly, and each change means tearing down and starting over.

Just when the higher authorities have always attached importance to high altitude and high speed, the times have changed, and the third-generation aircraft that the West has begun to develop have taken maneuverability as the most important factor, and the American fighter mafia has put forward the theory of energy maneuverability.

Now, the national economy is adjusting, and the J-9 has always existed only on paper, and such a project is already at risk of being discontinued.

The air force attaches great importance to high altitude and high speed because for the air force, the Soviet Union in the north has always been the most serious threat, and the Tu-22M backfire bomber of the Soviets can carry several tons of bombs at any time, penetrate the defense at supersonic speed, and fly all the way to the capital.

The Soviets put the most pressure on their side.

Therefore, the Air Force's horizons have not yet broadened, and they have not seen the development trend of the world's military aircraft, but now, Qin Feng can say all these big truths.

"If we change the project indicators, lower the requirements of high altitude and high speed, and focus on improving maneuverability, such as relaxing static stability, greatly improving the actual combat performance of the aircraft, using belly air intake, and improving the maneuverability of large angles of attack, I believe that we will be able to become the king of the sky in the future." Looking at the current F-16 of the Americans, this is the layout. ”

Qin Feng's words also brought out Song Lao's thinking, that's right, looking at the trend of military aircraft development in the world, it depends on the United States, and the United States, developed in full accordance with the theory of the fighter mafia, is the F-16!

"If you pursue high-altitude and high-speed, our brother unit Shen Fei is already building J-8, this project is enough, if you continue to develop a fighter with the same indicators and backward, it is repetitive labor and a great waste." When Qin Feng said this, looking at Song Lao's face, his heart began to retreat.

God, I didn't say the wrong thing, did I?

Now, although the Party Central Committee has begun to put things in order, after all, he has just experienced a terrible era, and Qin Feng has seen too much of the things that come out of his mouth, and now, he has to be careful.

J-8, in fact, is the J-7 double-hair large version, is a kind of emergency plan at that time in the case of insufficient technical conditions, now, Shen Fei is working on the J-8, and his own J-9, if you continue to follow this indicator, it is indeed backward when developed.

It's just that these involve a lot of problems, and they can't be controlled by themselves!

Thinking of this, Song Lao shook his head, this kind of thing, he can't control it, he can only do his best.

Now, for Qin Feng, Song Lao has a greater curiosity: "These, how do you know?" ”

The test pilot can be regarded as an internal person in the Air Force, and his views are different from those of the mainstream Air Force.