The RB-199, which was already under discussion, was a key plan of Rolls-Royce, and when it was learned that the Republic was preparing to purchase TF-41 engines, Rolls-Royce did not pay much attention to it.

At least in Rolls-Royce's view, this is just some Spey engine modification materials that have been sold, and even the bulk of the engine is sold directly, so there is no need to worry about this kind of minutiae, and you can sell it directly for some money, which is not very important anyway.

Even in Rolls-Royce's opinion, as long as the large order of RB-199 can be negotiated, the information of the TF-41 engine is no problem without money and random gifts, and that thing is not valuable.

It was not until the Republic reiterated the importance of the TF-41 engine project and made it clear that it was ready to talk in detail about the improvement of the engine, which could be regarded as giving some attention, informing the Spey Project Department of the news, and sending people to the Republic to have a look.

.......

"Chief Engineer Wu, this time Rolls-Royce sent Joe Dam, who was previously connected with our Spey localization project, what do you think of this person, can the talks go smoothly?"

The British have not yet arrived, Wang Zhengguo and Wu Daguan in the conference room muttered together, after all, it is the first time to participate in this kind of meeting, and there are still some inaccuracies, but it is definitely right to understand the other party's personality first.

After being transferred back to the imperial capital, he can still have the opportunity to continue to promote the big project of Sibei, Chief Engineer Wu looks very energetic at this time, and when he sees Wang Zhengguo asking, he is probably willing to say more.

"It turned out to be him, this is the deputy chief engineer of Spey MK512 engine that year, the earliest civilian version of Spey, and later responsible for the general design of the military afterburner version of Spey 202. Rolls-Royce is divided into departments according to the general model of the engine, and he is the head of the department, as well as the chief technical engineer. ”

Thinking that when I went to the UK for training, I had encountered many technical personnel from the Spey project department who were transferred to other departments, and I didn't know what was left of the Spey project department after so many years.

It seems that this time the TF-41 engine does have to face various problems: "Now Spey has lagged behind the mainstream of the world, and the number of people in the entire department has been decreasing, this time we want to start the TF-41 engine plan, which should be the last chance for the Spey project department, as the head of the department, he will definitely come in person, this is not surprising." ”

The Rolls Disbe project department was also coaxing in the early years, the sixties should be the most beautiful time, and the seventies began to decline, as for now, it goes without saying much, it belongs to Wang Xiaoer's New Year, and a year is not as good as a year!

Compared to the tragedy of Spey's project department, the RB-211 project department is obviously much better, it has been the core of Rolls-Royce since the late sixties, not to mention the civilian side, it must be constantly changing and changing, and even the RB-199 project of the three-rotor is assigned to the RB-211 department.

In the nineties, even the new generation of Ruida engines were treated according to the deep modification of the RB-211 engine, and were directly assigned to the project department, so as to realize the long-term prosperity of the department since the sixties, until the first two decades of the new century, it was still the most awesome existence of Luoluoluo, and it has not yet seen the decline.

Unfortunately, Spey Projects, which was developed as early as the 50s and contributed to Rolls-Royce, began to bear the costs of the entire company in the 60s.

In the seventies, when it was supposed to be ready for a major overhaul and update, but it encountered the RB-211 pit that dragged the whole company into a quagmire, how could Rolls-Roy at that time come up with money to the Spey project department, not only could not take out the money, but even sold the technology to the Republic, Italy, and Yugoslavia in various ways.

It can be said that the Spey project department of Rolls-Royce has changed from a flourishing branch in the sixties to a sparse population today, largely because the senior management prefers the younger son of RB-211, and the money made by the eldest brother to subsidize the family should not be, shouldn't it?

As for what to say about the transition to squeeze Yunyun, that is the Spey project department's own business, and when you grow up, you should support yourself, isn't it?

To paraphrase a republican saying, Spey was raised by his stepmother in Rolls-Royce's company, sad!

I figured out the situation, and it happened that the other party's person had also arrived, and at first glance it was already a middle-aged man in his fifties, European men generally don't look very old, but in Dahm's body, Wang Zhengguo felt that it was the complete opposite, this girl looked almost the same as Wu Daguan, the chief engineer, and she was really old.

Chief Master Wu, who was shaking hands with Dam, also found out about this situation, to say that this old friend has indeed changed too much compared to three years ago, so big that it is even a little difficult to recognize, it is fate!

After greetings, he was invited to sit down: "You came in person this time, you must be determined to win the TF-41 project, but what I didn't expect is that you are also like me, we are all old!"

If the RB-199 project is a group of young people in the prime of life who do not compromise with each other and compete against each other, then this TF-41 is a group of unwilling old people who strive to make the last game for their ideals.

The talks didn't seem to have much competition, and the talks under the leadership of Chief Engineer Wu Daguan were more like a technical exchange meeting, and it seemed that neither side planned to talk about money.

The strange atmosphere could even be felt by Wen Ling on the side, he got up and mixed a circle of water for everyone in the conference room, put down the kettle, and finally sat next to Wang Zhengguo.

"What's the matter, could it be that Chief Master Wu had a good relationship with this old man when he was in England before, and the atmosphere was so harmonious. You don't know about the RB-199 engine next door, I heard that the documents that are scrapped every day are packed in marijuana bags, and when I passed by just now, I saw the logistics staff on both sides at the door sitting in a complaint, that's really. ”

There is no harm if there is no comparison, TF-41 and RB-199 are now carried out by the ministry, and this meeting is naturally arranged in the ministry, and the big conference room next door is the hardest hit area of the RB-199 negotiation, Wen Ling must have received 10,000 critical damage in his heart after reading it.

The capitalist countries must be compared, this is definitely not a spectacle that can be seen often in the republic, Wen Ling has not gone to the UK this time to increase her knowledge in the country, and she is not a loss.

Turning sideways, he smiled and made an analogy: "I've seen a little kid fight, it's young and vigorous, but have you ever seen an old monk fight, people have long seen it, and they only care about whether the temple incense can continue a hundred years later." ”

There was another fight, and Wang Zhengguo seemed to have said something wrong.......

"According to what you mean, you plan to develop a high-thrust military afterburner turbofan on the basis of TF-41, and the technical level must reach at least 6.5 or more thrust ratio?"

After roughly figuring out the situation, Dahm began to make his own calculations in his heart, and this project reminded him of the 912-23B project with Allison Company, and the data of that engine may have some reference value.

"We have done similar test work in the year, if the TF-41 is improved according to this idea, without overhauling the engine, on the basis of the 202 to improve the afterburner, the matching engine thrust can reach 11.3 tons, thrust-to-weight ratio up to 5.7, this is the simplest improvement scheme, at most two years can be finalized. ”

This scheme is actually very simple, TF-41 can reach 6.8 tons of thrust without afterburner, while Spey 202 is only 5.5 tons without afterburner, and there is an extra 1.3 tons of thrust here.

The air flow of the TF-41 is larger than that of the 202, and even if the same afterburner as the Spey 202 is used, more air flow can increase the thrust to a certain extent, and it is not impossible to increase the thrust by 2 tons in total.

The scheme is really simple, directly on the original design of the TF-41 to install the afterburner of Spey 202, no need to make any more improvements, at most to do some fine-tuning of the relevant interface parameters, and these works have been done back then, and it turns out that it is a completely brainless design.

With such a simple improvement, can it meet Wang Zhengguo's requirements?

Obviously, it is impossible to do it, the thrust ratio of 5.7 alone is enough to make people collapse, not to mention that this maximum thrust data is not very satisfactory, and more in-depth improvements must be made.