When did the plan for the overhaul of the J-7 series of fighters start to be directly put on the table for research, according to Wang Zhengguo's memory, it seems that it began in the early eighties, experienced the early J-7 CP plan, and then the China-Pakistan wore 2 projects, the Sino-US Super 7 plan, and the three projects ran through the early overhaul of the J-7.

It's a pity that the biggest reason why the above plan has been delayed for a long time is that none of the customers directly stated that they wanted to purchase, and before the prototype came out, even Pakistan, which is most interested in the overhaul of the J-7, is unwilling to start.

Since all the problems lie in the initial order link, if the Jian-73 project is really transferred to the 123 factory now, the military of the corresponding republic will be very likely to continue to support research and development and procurement, and the whole plan will be revitalized.

Wang Zhengguo's plan was very tempting, but Chief Tu, who had always been steady, was keenly aware of the problems and was suspicious.

"No, if you want to overhaul the Jianqisan project, according to the current situation, with my understanding of Old Man Song, he must be jointly developed, so that the Shudu Institute can minimize the loss, but you didn't say so, can you tell me the reason?"

The house was quiet, the two mothers and daughters had already consciously gone to the side to talk, and the living room suddenly seemed too quiet, Wang Zhengguo was actually thinking about it, considering whether it was necessary to say the follow-up related plans.

After all, some things still didn't stop: "Let me just say this, under normal circumstances, it is true that the cooperation between the two sides is better, but soon there will be more important projects in Shudu, and there will not be enough manpower to continue to spend on the Jian-7 series." However, we also have a requirement that if the J-7 overhaul plan continues, the engine will use the RB-199. ”

It's another eight-pole can't hit the place, what engine does the J-7 use in the end, of course, it is selected according to the needs of the purchaser, and Wang Zhengguo, a layman, specifies which engine to use, isn't it funny, what else can he understand?

almost forcibly suppressed the urge to laugh in his heart, and pretended to explain with a pleasant face: "RB-199 has heard that it is not impossible to introduce and assemble the Jian-7 major modification model, but this kind of thing is not something that you, or even me, the chief aircraft engineer, can make, it depends on the choice of the purchaser." ”

J-7 export also in some countries, during the period also experienced a lot of things, "customer is God" may not have been paid attention to other units in China, but the 123 factory has been one step ahead of international standards, Tu Chief Master only more deeply understand this truth.

With a smile on his face, after explaining the "market truth" from a capitalist country, Mr. Tu suddenly felt that his old man seemed to be more Westernized than the young man's thinking.

Mr. Tu thinks that the purchaser is God, and the selection of the engine depends on the choice of the other party, which Wang Zhengguo will certainly not oppose, and even supports it with both hands, but the problem is that the customer's needs are really in conflict with the RB-199 engine?

Of course not, someone responded very bluntly: "What engine the purchaser is willing to install, we must follow the other party's requirements, and now the problem is that the other party needs the RB-199 engine!"

When he spoke, Wang Zhengguo still smiled and stretched out his hand, he would make a posture of eight, but he hoped to be able to understand what he meant......

In fact, Chief Tu must have understood, how could he not know what Wang Zhengguo meant by comparing this eight, and what could be related to eight in terms of fighter research and development was nothing more than the model in the north.

As for why the northern model has anything to do with the RB-199, is this strange?

In the early 80s, the cooperation between China and Britain in aviation was almost unprecedentedly close, which exceeded that of all European and American countries, and the RB-199 engine led by Rolls-Royce had excellent performance, and it was a natural fit to be modified to the J-8.

As the most cutting-edge representative of European military turbofan afterburner engine technology, RB-199 has been the top performance in the eighties, if the cumbersome thrust reverser device is removed, not only the thrust-to-weight ratio hangs the F-100, but also the reliability is more comprehensive.

If you want to say what is the military aviation engine with the highest comprehensive technical level in the early eighties, the RB-199 definitely belongs to the top, as for saying that the bypass ratio of this engine is too large and can only be used for multi-purpose bombers, it is a big mistake, after all, not all engines are Spey's very characteristic existence.

The RB-199 was initially positioned for military use, so the design focused on thrust output response and high thrust-to-weight ratio, which are completely unavailable in civilian engines, and then the engine was installed in the Tornado ADV interceptor to shine, which showed that it was an artifact.

Things have developed to this point, shouldn't the development of the future be that Jianba hugged the beauty and continued to look down.

When J-8 and RB-199 fell in love, Mr. Gu, who was the person in charge of the model, also tried his best, so to what extent?

First of all, he strongly opposed the continued localization of Spey 202 and demanded that the unspent money of the project be transferred to the introduction of RB-199, so Spey was dismounted in the early eighties, not only because of various considerations at the top level, but also because of the competition and dumping among peers.

From the perspective of the chief engineer of J-8, I fully understand the reason for this, after all, the RB-199 is indeed much better than Spey, and even if Spey is stopped, the flying leopard can also use RB-199 as power, which is not a conflict.

Of course, among these reasons for squeezing out the Spey engine, by the way, the idea of squeezing the flying leopard to death and letting the eighth master as a fighter-bomber play some role, this may or may not be, who knows!

Everything is in place, even Spey has been dismounted, seeing that the RB-199 plan to come to China is about to be completed, the British have even better news, it turns out that the improved model of the J-7 can also use RB-199, which makes Mr. Gu instantly feel that there is another ally, this thing can definitely be done.

And why the British said that the J-7 modification can also use RB-199, this reason is naturally related to the 123 factory, when the J-7M began, the British side learned that this aircraft has received hundreds of orders from Jordan, Pakistan and other countries are interested.

Facts have proved that Factory 123 has a strong influence in the field of ultra-light military fighters, and the smart British will naturally not let go of the opportunity for follow-up cooperation, and they see that the engine configured by the J-7 is seriously backward, so they directly sell RB-199.

It's a pity that after the study of the then chief engineer of Tu Jida, considering the high price of this engine, although the cost of life is acceptable, but the air flow, weight and the design of the J-7M are seriously mismatched.

These are all things that have happened in the plane where Wang Zhengguo is located, including Chief Tu, who has also had many contacts with the British Rolls-Royce, and is also very clear about the RB-199 engine, but what he can't figure out is why Wang Zhengguo, a person from Shudu, wants to help Fengtian, these two research institutes are now in dire straits.

"Mr. Gu of the Northern Institute is indeed trying to cooperate with the UK and prepare to install the RB-199 into the J-82 project, but that is their business, and we will not affect either side, after all, the RB-199 engine is ......"

Suddenly, Chief Tu finally figured out the problem here, if the J-73 was handed over to the 123 factory, then the project was destined to be overhauled, including the power system, and at this time, there was no need to stick to the matching problem of the engine compartment of the RB-199 and the old J-7.

On the contrary, considering that if the J-7 and J-8 major changes will be made to use RB-199, it seems to be easier to talk about engine cooperation with Britain at this time.