"How do you say this from the beginning, well, this thing is really complicated!"

Jiang Hefu thought about it and couldn't help but sigh. www.biquge.info The aviation industry is one of the two most brilliant pearls of human industry, which together with the semiconductor industry supports the technological progress of the current human society and is the crystallization of human science and technology engineering.

This means that in the aviation industry, the highest scientific and engineering achievements of mankind are concentrated. Especially in a key industry such as fighter jets, it is even more stingy with the wisdom and cost of investment.

"The progress of the No. 10 project can be said to be very satisfactory after getting a full set of R35 materials and corresponding funds from Mr. Hu last year. Jiang Hefu rubbed his hands, hesitated for a moment and said: "The technology of R35 is not complicated, and the resources we need to invest in both reverse mapping and production at this stage are not too large. Compared with the progress of turbofan 10, the performance index of R35 is not lagging behind, which can fully meet the needs of Project 10 and allow the design of the whole machine to go smoothly. ”

Speaking of this, Song Wencong also nodded approvingly, and sighed: "The engine of the No. 10 project has been uncertain for a long time, which has indeed had a very serious impact on the development of the whole machine. However, after mastering the full set of information of R35, we can also achieve a targeted design of the whole machine, which is very helpful to the progress of the project. ”

After hearing this, Hu Wenhai couldn't help but wonder and asked, "Isn't this a good thing?

Jiang Hefu and Song Wencong looked at each other and nodded with a wry smile.

"Maybe it's in response to the old saying, blessings are incomparable, and disasters are not alone!" Jiang Hefu simply unveiled the mystery: "Getting R35 is indeed good news for Project No. 10, but it also makes all parties have some ideas that may not be suitable." For example...... For example, after learning about the performance of the R35, the Air Force put forward a new requirement, that is, the 10th should use the same 1493 radar as the domestic Panda. ”

When Hu Wenhai heard Jiang Hefu's words, he was immediately dumbfounded and said in disbelief: "Is the Air Force crazy? The No. 10 is a single-engine light aircraft, and the radar developed by the 14th Institute of the Navy for the heavy aircraft on the light aircraft is required?

What kind of aircraft is the Jian-12? It is nicknamed "Li Xiangyang in the air" and is the world's lightest supersonic fighter developed with the guiding ideology of fighting "guerrilla warfare in the air." But because of this, its shortcomings are very obvious, which ultimately led to the fact that this model did not enter the equipment series of the Air Force.

What are its shortcomings? Due to weight restrictions and nose air intake, this aircraft has only two aerial guns and two air-to-air combat bombs, no radar fire control, and in order to obtain a large thrust-to-weight ratio, its take-off weight is only four and a half tons, and its maximum range is quite impressive.

If the MiG-29 is to be called an airport defender, then the J-12 can probably be called a runway defender.

So what will be the impact of the Jian-10 radar if it adopts the 1493 radar? First of all, the diameter of the radar has increased, and how much has it increased? The original radar of the No. 10 project was the 1473 radar, with a diameter of 700 mm, and the detection distance of a 3-square-meter target was 120 km. The Air Force proposed to replace the target 1493 radar with a diameter of 930mm, and the detection distance of a target of 3 square meters is 150 km.

Although the diameter has only increased by 230 mm, it is easy to draw a conclusion based on the formula for calculating the area of the circle. In the formula for calculating Πr2, r is calculated as a radius in a square manner. In other words, although it is only 230 mm larger, the cross-section of the entire machine head will be nearly doubled.

For objects moving at high speeds, power is mainly used to overcome air resistance. And once the windward area of the nose of a high-speed fighter is doubled, the demand for power is not only doubled?

Simply enlarging the cross-sectional area of the nose will inevitably lead to the degradation of the design performance of the J-10 into a "runway defender" similar to that of the J-12. If there is a significant regression in range and speed indicators, the Ten will most likely lose its raison d'être.

The R35 has reborn the power of the Ten, but it has also given the Air Force more different ideas about the Ten. After the thrust is increased, can it support a larger nose cross-section? Can more power supply radars be provided? In the past, if WP15 was used, it would not be easy to maintain the original data in all aspects, and naturally there was no possibility of changing the radar. However, Hu Wenhai "reversed" back to R35, and there is more room for affluence in the indicators.

But no matter how rich the performance is, it is definitely not to the point where it can equip a single-engine light aircraft with a heavy aircraft radar.

Hu Wenhai couldn't help but be indignant: "The Air Force is not a layman who doesn't understand aircraft, how can he make such an unreasonable request?"

"Speaking of which, the Air Force really has their own reasons. Song Wencong interjected and explained: "Because of the commissioning of the Xinke wafer factory, China's semiconductor technology has developed greatly. The 14 institutes have achieved fruitful results in the past two years, and the 1493 radar is considered one, and the domestic Phoenix has also entered the final stage. In addition, the Asbid missile, which is currently being negotiated with Italy, is needed for these two medium- and long-range missiles, which require radars with large-diameter antennas. ”

The diameter of the radar is directly related to the detection distance of the radar, and if the Phoenix and Aspide are to play their full performance, they do need a high-power, large-diameter heavy-duty radar.

In the final analysis, this kind of thinking of the Air Force was also a trend of thought in the world's air forces -- queuing up in the air to be shot. In the original history, the Hachisho once advocated this kind of avionics winning argument, which was a mistake made by not understanding the application of the third-generation aircraft after the introduction of the Su-27.

I still remember the original history, when SU27 was just introduced into China, and several Blue Sword exercises organized by the Air Force. The elite SU27 unit and the backward J-7E unit conducted a simulated offensive and defensive confrontation, and unexpectedly achieved a result that surprised the domestic high-level and puzzled Russian experts.

In 70 rounds of confrontation, the backward J-7E fighter unit actually penetrated the air defense zone of SU27 more than 60 times and successfully reached the airspace above the attack area. The success rate of advanced SU27 interception is less than 8%!

After the exercise, the Air Force conducted a review, and after painstaking study and analysis, it realized exactly where the problem was. In fact, the reason is very simple: China's SU27 cruise and interception and engagement plans all adopt the tactical tactics of entering from an altitude of 10,000 meters to maintain the "high-altitude and high-speed superiority".

But with the SU27's poor radar downward vision ability, the J-7E fleet is a small group of multi-channel low-altitude penetration, and there is actually no difference between a cluster of third-generation aircraft at an altitude of 10,000 meters and a group of blind people.

It was only after a series of lessons that the Chinese Air Force realized that "having a third-generation aircraft, but also having the people and tactics to control the third-generation aircraft" is such a valuable experience.

However, Mr. Hu brought in the F-14 with the ability to shoot down and shoot down too early, which made the Air Force, which was happy to beat up children on the battlefield in Annan, have a tendency to pick up the argument of avionics to win and line up to be shot.

Since missiles on the battlefield in Annam can safely take out the enemy beyond visual range, of course, the new fighter still needs a longer range and more missiles. The role of a fighter is to see an enemy aircraft in the distance, then throw the missile out and turn around and run. As for the problem of hit rate, in the early years, the army lined up to shoot and there was no hit rate at all, as long as the number was enough, it was not a big problem!

However, this kind of "chivalry" tactics of Hachisho would be very useful if it was placed in the Warring States Period of the "Battle of Hongshui", and it is estimated that it has a common language with the Song Xiang Guild, which was unwilling to attack halfway. It is a pity that modern air combat is no longer the era of air knights competing with each other, but an uncivilized war in which a group of filthy and despicable assassins wallow in the mud with each other.

In modern air combat, the advantage of the third-generation aircraft lies not only in the number of missiles and a larger radar, but also in its powerful maneuverability, the ability to maneuver away from incoming missiles. It lies in the powerful electronic jamming equipment, which can jam the radar of missiles, in the ability to penetrate defense at low altitudes, in the fact that small groups and multiple channels can be used, and in the ability to obtain the cooperation of the entire system......

The problem, however, is that the just-concluded Gulf War provided the air force with a lot of "ammunition" and was able to advocate the tactics of queuing up in the air to shoot to death. The US imperialist air force slinged Iraq, and the results of medium-range bombs greatly exceeded the results of combat bombs, and it seems that there is another important argument for the victory of avionics.

But the problem is that whether the US imperialists beat Iraq or the Air Force beat Annan's children, they were all bullying with guns. If China doesn't hold a racket in table tennis and holds the soles of his shoes, won't he be able to win against Ecuador? The reason why the US imperialists can do this is that they can always find an opponent who can be pressed and rubbed on the ground casually, but if a war breaks out in China in the future, which opponent can be shot in a queue?

At this point in time, the Air Force took this opportunity to propose to strengthen the radar performance of the J-10, which is really hard to say.

"Avionics wins, the eight institutes are determined not to change!" Hu Wenhai's face was so gloomy that he could almost wring out the water, and he could only sigh. To put it bluntly, the dispute between the north and the south is still the lack of China's aviation technology. The north wants to engage in avionics to win, and Cheng Fei emphasizes "maneuvering first, avionics supplementing", although the final result is that the south's thinking has been verified, but in fact avionics and maneuvering are not contradictions.

Don't you see that the F22 and F35 have world-class avionics, and they also have world-class maneuvering? The trade-off between avionics and maneuvering comes down to the fact that the engine cannot provide strong power.

"Actually, it really doesn't have much to do with the Eight Institutes. Song Wencong was a little embarrassed, interrupted Hu Wenhai's emotion, and explained with a little embarrassment: "The avionics plan of the Eighth Institute in this matter is just an excuse, in essence, it is the J-14 Panda that Mr. Hu supports." After the prospect of the Panda domestic production became clear, now the SU27 was introduced from the USSR, and there are already two third-generation heavy aircraft in the country. In this way, the pressure on the air force on national defense has been much lighter, and whether or not it will be equipped with a domestically produced third-generation light aircraft is the crux of the problem. ”

"Yes, TF41 will soon be fully localized. With this turbofan engine in hand, the Air Force now has a great opinion on the R35 turbojet!" Jiang Hefu followed with a bitter water: "The Air Force now has an argument about the engine, that is, the turbofan is more advanced than the turbojet. For No. 10 not to use AL31FN, but to insist on using R35, the opinion is also very large. ”

Song Wencong beat the side drum and sighed: "In addition to using 1493 this time, the requirements put forward by the Air Force this time also require that No. 10 must have a maximum speed of Mach 1.8 while carrying the fourth sister Asparade. Pull one and launch the whole body, only these two new requirements, the tenth will inevitably be fully amplified. ”

"Yes, if the number ten is to be enlarged, then neither WP15 nor R35 is enough. With four Aspades on Mach 1.8, even if a semi-buried pylon is used, a new turbofan engine must be used, which has already been calculated by the Air Force. Jiang Hefu snapped his fingers and put the situation clearly in front of Hu Wenhai: "According to the requirements of the Air Force, the maximum thrust of this aircraft cannot be less than 14.5 tons, and the maximum thrust of the non-afterburner segment must be more than 9 tons to maintain the flight performance of the non-afterburner segment." ”

"The TF41 has a maximum thrust of 12.5 tons, which is certainly not enough. The planned Taihang is 13.2 tons, which is barely usable, but the finalization is far away. Moreover, even if Taihang is adopted, the performance will inevitably be seriously reduced, which is very unfavorable to ensuring the design performance of the aircraft. ”

After Jiang Hefu finished speaking, Liu Daxiang, who had never spoken, suddenly sighed and shook his head silently.

Even if there is enough money and time to develop a new turbofan engine, there is no high-altitude platform in China that can test a 14.5-ton afterburner engine. His eyes were fixed on Hu Wenhai for a long time, and finally said: "If the No. 10 project once again faces the dilemma of no power matching, and now the country is not short of sources of third-generation aircraft, it is not impossible for the No. 10 to be launched......

Hu Wenhai's eyes widened, and he slapped his fist on the armrest of the sofa with a snap: "Dismount No. 10? I see who dares!"

What is embarrassing is that don't look at Mr. Hu so indignant. But in fact, in his heart, he is now embarrassed and panicked. He had already seen that most of the culprits for the current predicament facing Tenth could be attributed to him.

After all, the Air Force started to do things again, and it wasn't he who got the F-14 and R35 back. After having two kinds of heavy third-generation aircraft, even the elders who clearly support the J-10 should also consider whether the J-10 equipped with a single-engine turbojet engine will be equipped with the possibility of being outdated?

Dismount on the tenth, this consequence is too serious. If others don't know, will Hu Wenhai's significance to the No. 10 still be unclear? Without the No. 10, China would not have been able to master the experience of designing its own third-generation aircraft. Without Cheng Fei's rebirth this time, I am afraid that the J-20 will have a difficult birth in the future. The fragrance of plum blossoms comes from the bitter cold, and if it does not experience wind and rain, how can Cheng Fei become Cheng Fei?

History, this awkward little girl, once again shows her unpredictability. Hu Wenhai's slightest disturbance seven or eight years ago, which seemed to strengthen China's air force, could now have a devastating impact on China's future fourth-generation aircraft.

When Liu Daxiang saw Hu Wenhai's statement, he finally showed a smile and revealed the mystery they had already discussed: "It's not impossible to protect the tenth, but this matter still has to fall on Mr. Hu." ”