Jindal frowned, and wanted to say that we came to the East to discuss cooperation with the Pacific Group, and use their 80,000-ton die forging press to make leaf discs, but thinking that the disaster was caused by ourselves, he shut up and didn't dare to say anything more.

Qin Feng was a little embarrassed there.

"Ms. Janet, I'm bringing you here to revisit the old place and find our former friendship, how can I ask you to help solve technical problems?"

"According to the agreement signed at the beginning, we need to teach you the production of engines hand in hand, you can't make the blanks of Spey engines, you can't produce qualified Spey engines, this contract is not over, we help you, but also according to the contract, if we can't solve it, I can find my father."

She said this not only to Qin Feng and others, but also to other Britons, telling them that this is our previous contract, we are here to wrap it up, we need to do this! Even if you don't want to help, don't mess around!

"Thank you." Li Guofu is extremely grateful, the former contract has ended, even if we can't make it, the British won't care, if you ask them, it will only cost more money, now, I don't know how Qin always fools these British, he can actually take the initiative to help, and he doesn't need money! This great spirit of internationalism is so touching, if you have any questions, please ask them quickly!

"After we use domestic materials to manufacture low-pressure first-stage hollow guided blades without margin, we often find cracks in the roots of such blades." Ma Guangying, a technician, hurriedly raised a question.

Aero engines often turn tens of thousands of revolutions, if the flying parts come out, but there will be a big problem, the crack at the root of the blade is the precursor of the flying parts.

"This is easy to solve, it should be that when the investment casting, the directionality of the crystal inside the blade is not good enough, and the magnetic field applied by the outside is not strong enough, so it is recommended to replace the electromagnet that generates the magnetic field." Jindal spoke suddenly.

He is familiar with this aspect, because this technology is what he conquered in the first place! The mistakes made by the Orientals, he could see at a glance.

Ma Guangying hurriedly wrote it down.

"When welding the blades to the blisk, our weld strength is not uniform." Another technician, Qu Xinguang, spoke.

"This has nothing to do with welding, it is likely that the vacuum heat treatment after welding is not up to standard, and it needs to be improved from the heat treatment, especially to see if the vacuum degree is not up to standard." Another British engineer spoke.

Things that the layman has to grope for a long time have to be in the hands of the insider, it is just a matter of a few words, at this time, with the British engineer's puzzle, one question after another was pointed out, many of which the big guys had not thought of, but now they were clearly told, and everyone was very excited.

Solved, puzzle after puzzle solved! Go back and try it now!

However, not all problems can be solved with a few simple reminders, and there are still some problems that need to be observed on site.

The meal was heated three times, and it took four hours to finish, and the British experts talked endlessly, answered many questions, and then, non-stop, came to the production workshop.

"We forge turbine bliss blanks in this workshop, but we don't always succeed." Li Guofu came to the side of the forging press with the big guy, expecting the British to help.

The workers made it on site, put the heated blank on the workbench of the forging press, and then start the forging press, boom, boom!

Turn over, keep banging, bang!

"After turning over, you need to pause for ten seconds." A British expert spoke.

Pause? Why?

Everyone present was stunned, they were made in strict accordance with the translated technical information, but these technical materials were still not all clear.

"Is it to wait for the internal lattice to be finalized?" Li Guofu was born in technology, and he quickly thought of this.

The British expert laughed silently.

Pause for ten seconds, re-forge, turn over, and forge again!

When the re-forged turbine blisk was placed on the inspection device, everyone was stunned.

It's done, it's done! The problem that bothered them was solved by this pause of ten seconds!

The guidance of British experts was carried out until late at night, although their guidance time was only one day, it was equivalent to a year or two of factory 430 groping by itself!

Sending the British expert to the guest house to rest, Li Guofu and the others finally had time to chat with Qin Feng alone in the office.

"Mr. Qin, thank you so much this time!"

"Yes, Mr. Qin, it was you who gave our Spey engine a new lease of life!" Ma Guangying also spoke: "I have seen the glorious future of Spey Engine. ”

"General Liba." Qin Feng said: "If there is a better engine, we will not choose Spey, and when the engine is installed on the relevant fighters, after the customer tests the flight, we will also find the chicken ribs of this engine." ”

As soon as these words came out, everyone was stunned again.

Yes, the problem of Spey's weakness in the sky cannot be hidden, and now customers are willing to pay for it, and when they sell a batch, they may not be satisfied.

"Mr. Qin, what should we do then?" Li Guofu looked at Qin Feng with blazing eyes, Qin Feng's words just now were obviously just a foreshadowing.

"Improvements." Qin Feng said: "Chatting with the British in the past few days, they revealed a lot of Spey's improvement plans, the thrust after the improvement can exceed 11 tons, and even 12 tons of modifications, we may get technology from the British, or we may need to study it ourselves, in short, it is absolutely not okay to eat the old book, after mastering the production technology of Spey, the next step is to improve!" ”

If the maximum afterburner thrust of Spey is increased to 12 tons, then any thrust-to-weight ratio and high-altitude weakness can be put aside, J-11 can be used, J-10 can also be used! From this point of view, it makes sense for Factory 410 to boycott Spey, after all, Spey may really steal their jobs.

The East has always pursued high-altitude and high-speed performance, this is because of the imminent threat in the north, fighters need to have a strong supersonic interception capability, but in fact, air combat often breaks out in the transonic stage, with a maximum speed of more than Mach 1.6, which can actually meet the needs.

"You will make a lot of money by exporting Spey engines, so you don't need state grants, and you have plenty of money to continue to improve and enhance the performance of Spey engines." Qin Feng said: "I hope you don't let me down. ”

A young man in his twenties looked a little funny when he said not to let himself down to a group of forty or fifty-year-old seniors, but Qin Feng had this qualification, after all, without Qin Feng, Spey would still be eating ashes in the warehouse!

"Mr. Qin, we will definitely not let you down." Li Guofu said: "Our goal in the next stage is to aim at the direction of 12 tons of thrust!" ”

"That's right, don't steam steamed buns to fight for breath!" Ma Guangying also said: "Let everyone see, the Spey we introduced is not a failed project, Spey is not only a mature and reliable engine, but also will improve the level of our country's aviation industry, and can also be improved and used in the main fighters of the Air Force!" ”

"Not only the Air Force, but also the Navy!" Another technician spoke: "We also want to speed up the Spey ship reform project, and strive to provide the Navy with an advanced marine gas turbine as soon as possible!" ”

Spey is a representative turbofan engine engaged in by the British, civil airliners, fighter jets are used, and then the British on the basis of the Spey turbofan engine to make a marine gas turbine S*M1, this kind of ship gas turbine has advanced performance, a wide range of uses, the British are relying on it to have an all-fuel fleet, the boiler completely thrown into the Atlantic.

Spey gas turbines also drifted across the ocean, and to the East, the fleet of the island nation was also used in large quantities.

Since the East has introduced Spey, of course, there is also this idea, in 81 years, the Chinese Academy of Sciences, the shipbuilding industry *, the aviation industry * and other units officially launched the "Spey ship reform" project, and the introduction of the Sea Javelin was used on the 051S destroyer. However, after more than ten years of grinding, the development of the first prototype was completed in 93.

In this process, the Navy introduced the American-made LM2500 gas turbine, which has not looked down on the Spey ship, and in the nineties, when it was not in succession, it would rather build a boiler-burning No. 167 than see the Spey ship change with its eyes, and waited until the UGT25000 matured, and the heart of the Navy became a woolly cargo.

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It is now 88 years, and the gate of the West will be closed in another year, if by the time the West closes the gate, the Spey ship reform can be successful, then the Navy is estimated to have no choice difficulty.

"Okay, tomorrow we will take the British to the Spey ship reform project to have a look, and they may be able to give some suggestions to speed up our research and development process. If they point out, then let's ......" Qin Feng finished talking about the plan, yawned, tired from a day, it was time to rest.

The eyes of the crowd widened, Mr. Qin was really powerful!

Just when Qin Feng and the others were discussing, Janet had already fallen asleep, and today she felt that she was living an extraordinarily fulfilled life and had the first good sleep when she came to the East.

The next day.

"When you come to our ancient city, you must eat authentic food, and the mutton steamed bun here is a must." Qin Feng took a group of British people to breakfast, and said to a large flower bowl in front of him.

The large flower bowl has a rich soup, and the inside is delicious mutton, plus the soft and hard bun, sprinkled with green onions, and coriander, it looks mouth-watering.

Janet felt her appetite lifted, picked up the bowl, took the chopsticks, and pulled them into her mouth.

It tastes really good!

Everyone else also enjoyed eating, and when they were all finished, they wiped their mouths.

"Mr. Qin, where are we going today?"

"Continue to visit the 430 factory in the morning, take a plane back in the afternoon, and tonight, the big guy will be able to continue production with an 80,000-ton die forging press."

Speaking of this, the big guy felt guilty again, after all, because of their negligence, they were delayed for three days, how much did it cost? Mr. Qin is really interesting!

Qin Feng pulled another wave of favorability, and then led everyone to the workshop.

Yesterday I went to the various production workshops, and today I came to the test workshop, you can see a complete engine on the test bench, which looks like Spey, but there are some differences, the front has removed the outer duct, it has become very thin, and the back is thicker than the original, and it has been lengthened, and there is no nozzle backwards, but an output shaft!

"Are you changing an aero engine to a gas turbine?" Looking at the machine in front of her, Janet suddenly thought of something.

It is a trend to improve the aero engine into a gas turbine, the United Kingdom, the United States, are doing this, only Lao Maozi independently developed, after all, the aero engine and the gas turbine have a lot of similarities, both are turbines, there are compressors and turbines and other structural parts, but the aero engine is to do work by spewing high temperature and high pressure gas backwards, and the gas turbine is to use these gases to push the power turbine and output mechanical energy.

To put it simply, as long as you add a power turbine to the back, you can change the aero engine to a gas turbine, but when you actually change it, it is much more complicated.

"Yes, this is our own research and development project, you are all experts, show us what flaws there are in this engine."

"There are many defects, and when you modify the gas turbine, you do need to remove the outer duct, but you actually reduced the diameter of the blades of the compressor, why is that?" Kindall asked.

"According to our analysis, the compressor is a subsonic fan with an average pressure ratio of only 1.208, and the top pressure ratio and efficiency of this fan are very low, so we removed this part, and the remaining part may be more efficient than the original fan." Zhou Shizheng, the engineer in charge of the project, said: "In order to increase the pressure ratio, we added a zero-stage fan in front. ”

The so-called top cutting, is to cut off a part of the outer edge of the original fan blades, very simple, adding a zero-level fan, is to add another layer in front of the original fan, the design is from the first level of the fan number, and then the increase is called a zero-level fan.

"No, no, this scheme is completely wrong, the topping scheme is very simple, but this way will cause a significant reduction in air flow, and the increase in zero level will not make up for it, if I am not mistaken, the output power of this way will not exceed 10 megawatts!"

The S*M1 derived from Spey has a maximum output of 19.5 megawatts, which belongs to the 20 megawatt class of gas turbines, which can drive four or five thousand tons of warships and four can drive seven or eight thousand tons of warships.

And what about the Spey ship? Because there is no certainty, the simplest solution is used, so the power output is only 9.22 megawatts, what is the use of a gas turbine of this class? Four warships that can only push 4,000 tons are completely chicken.

Therefore, there is a reason why the Spey ship reform has not been favored by the Navy, and the power output is not up to standard!

Qin Feng didn't understand this, he was just responsible for fooling the British, as for how much help the British could provide, it depended on luck.

This Jindal is the culprit who broke the 80,000-ton die forging press, so he provided the most technical help.

"It is a mistake to cut the roof, according to the original shape of the fan, continue to extend it by 20 percent, and at the same time expand the inner diameter of the engine in equal proportions, so that more air can be blown in, and with enough air, the power output of the engine will be abundant."

"But we didn't know the shape equation of the fan blades, so it was difficult for us to expand the fan size."

It is possible to shorten it, but extend it...... What should I do with this extension? Nobody knows.

"It's not that complicated." Jindal saw the small blackboard used to record the data, and immediately picked up the chalk and wrote on it, and soon wrote a full blackboard.

In fact, several other engineers wanted to block it, even if the patent contract for the export of Spey engines was at that time, but there was no contract for the export of gas turbines, these were still confidential, but they couldn't squeeze in, because other people came up and surrounded the outside of the small blackboard!

Jindal put down the chalk and looked at the contents of a blackboard with satisfaction, as an engineer, you must have a brilliant mind, these things have always been in his head, and he has never forgotten them!

I'm very good!

"Mr. Kindall, you're amazing!" Qin Feng gave a thumbs up: "You are simply the reincarnation of Esanbad Kindham Brunel!" ”

The layman has not heard of this man, but he cannot be unheard of by the industrial technology, the British engineer born in 1806 presided over the construction of railways and steam ships, was a major contributor to the Industrial Revolution, ranked second on the list of the 100 greatest Englishmen, second only to Churchill, in 2006, to commemorate the bicentenary of his birth, Britain also used his portrait to mint a two-pound coin.

Now, Qin Feng's praise made Jindal flutter in an instant.

Looking at Qin Feng's eyes, Zhou Shizheng continued to ask: "In this way, the power turbine turbine in the back also has to be changed, right?" ”

"Yes, it must be changed...... However, the blackboard is full. ”

"We've got drawing paper here, and you write it directly."

Outside the crowd, several Britons were a little anxious, but there was no other way, if they shouted loudly here to stop Jindal, it was a little inappropriate, which angered Mr. Qin, and what if they were not allowed to use an 80,000-ton die forging press at night?

Besides, just talking about some theories, it doesn't seem to be a big deal, after all, what the Orientals lack is the production process.

In particular, Janet, who led the team, didn't speak, so they didn't have to worry about anything, there was an accident, and Janet was in charge! Anyway, someone is taking the blame.

What is Janet doing? They looked around and found that Janet was accompanied by Zhao Jiao, admiring the pots of flowers blooming on the windowsill of the workshop.

At this time, Li Guofu left the crowd and walked towards them: "Everyone, next to it is our air-conditioning constant temperature workshop, which has a variety of CNC machine tools imported from the United Kingdom, and there are some problems, can you help debug it?" ”

"Okay."

Just leave here and pretend that you don't know anything, the leak was done by Jindel alone, and what are the consequences for him to carry it himself!

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