In the northwest region, it is not only the Western University of Technology that has taken action, but also other scientific research factories, including the Hongqi Factory that has cooperated with the Second Institute of Science and Industry of Southwest China a few years ago.

A few years ago, the Hongqi factory was dismounted because of the turbofan 9, and the whole plant was decadent for a long time, and later some key technical information was copied and run away by its old rival Dawn Factory, which made the Hongqi factory excited.

Fortunately, later the factory was responsible for the localization of Spey, Chief Engineer Wu, introduced a fairly good job, and the 0011 base in the southwest is still called the Southwest Science and Industry United Company, they want to develop a new engine.

Fortunately, Huangtian paid off, Hongqi Factory wholeheartedly cooperated, and finally completed the development of high-temperature turbine blades of the engine, which is said to be about to be finalized.

It is said that the turbojet 13 engine originally used by the Dawn Factory to develop for the J-8 was squeezed to death by this engine, which is really happy.

The successful development of the new engine of Southwest Science and Industry, the Hongqi factory here is also in operation, with the launch of the four bombs and the sixth, the localization of Spey has been put on the agenda again. The Spey engine, which had low fuel consumption and good efficiency, was again hit by the army.

Although it is only a version without afterburner, it is enough, and the Hongqi plant originally had no experience in producing afterburner, although the turbojet 8 produced by the Hongqi plant has a thrust of up to 9 tons, but this engine is also something without afterburner.

After receiving the capital injection again, Hongqi Factory cherished the opportunity and knew that the opportunity was rare. The progress must not be delayed, and the localization of Spey engines is now in full swing.

Working overtime day and night. The engine is progressing very well, and nothing has happened beyond the planned milestone. But now the Hongqi factory also has another voice.

It's not that I'm dissatisfied with working overtime every day, but that I have a more radical idea about the technology of the turbofan 9. It stands to reason that radicalism must not appear at this time, but this kind of radical plan is not too radical when you think about it.

"I think we can use our new domestic technology in the localization of Spey, such as the directional solidification without margin precision casting composite hollow air-cooled blades developed by Southwest Science and Industry, according to their test data, the new high-temperature turbine has a heat resistance ceiling of up to 1286 degrees Celsius, which is much better than the technology we now get from the UK."

The person in charge of the localization of the high-temperature turbine technology of the Spey engine is excited to argue that the total temperature of the high-temperature turbine of the Spey 202 engine is only 1167 degrees Celsius. If the high-temperature turbine blades are replaced, the maximum thrust of the engine can definitely be raised to a new level.

Seeing that no one spoke, he continued to say his reasons, this plan was planned for a long time, and even the thrust after the upgrade of the high-temperature turbine blades was roughly estimated.

"I roughly calculated that if the new turbine blades are used, the total turbine temperature can be increased by 119 degrees Celsius, which can increase the temperature of more than 100 degrees Celsius, which can bring a new transformation to our localized turbofan 9. Even for afterburner-free models. After our improvement, the maximum thrust of the engine can also exceed 6 tons, which will increase the thrust by about 500 kilograms. ”

What is the concept that the new engine after localization can have an increase in thrust of 500 kg? Or take four rounds and six to calculate. One engine adds 500 kg of thrust. Then four engines will add a total of two tons of thrust.

It was previously said that the H-6 is a subsonic bomber, with a relatively low thrust-to-weight ratio of only 0.25. Now calculate how much can this extra two tons of thrust do?

The four engines provide a total of 24 tons of thrust with a thrust-to-weight ratio of 0.25. The maximum take-off weight of this aircraft can reach a new 96 tons, which is an increase of eight tons compared to the four-engine H-6 without upgrading the engine. Think about it, if those eight tons were used to carry oil

God, such a bombing oil six can be used for the oil receiving machine has a full 32 tons, compared with the poor 13 tons of oil that can be used for the oil receiving engine in the previous life, these 32 tons are too much higher, even compared with the world's mainstream air tankers.

Increase the thrust of 500 kilograms, this is worth everyone's good study and study, the director of the Hongqi factory is not calm at first, if there is really such a big increase, then what else is there to say, we must do it.

"Okay, if our engine can be more powerful, if we can break through to about 6.2 tons, relying on our engine, we can completely send the maximum take-off weight of the H-6 into the new world of 100 tons, what a great achievement it will be, and I don't think this change will be too big."

Of course, it is not big, it is just the replacement of the turbine blades that have been developed, and the other changes are very small, so small that they can almost be ignored without calculation.

How else can it be dropped, the factory director has said, then do it, the chief designer who was originally responsible for localization is also more inclined to improve, and now with the support of the factory director, this is not to mention.

"Okay, let's do it like this, localization can't be localization without improvement, how can it be improved, we can talk harder when we go out in the future."

With the strong improvement of the factory director, the chief designer, and the person in charge of the high-temperature turbine project, the Hongqi plant has finally unified its caliber and can rest assured that they can work together boldly to move towards the future.

So there are people from all walks of life to the southwest science and industry to "worship", and the current southwest science and industry can be described as the limelight.

"Congratulations, the record of the Jianjiao 7A in Pakistan is quite good, and now the international community has paid considerable attention to the Jianjiao 7A, and surpassing the MiG-21 is just around the corner."

Hearing these congratulatory words, Chief Engineer Yu naturally knew the source and what the international comments on this fighter were: it has surpassed the MiG-21 Biss; And the MiG-21 took a completely different path; Some media even gave the name of the first fighter of the Republic to get rid of the Soviet fighter style to Jianjiao 7A.

Chief Yu is a rare little blushing, if he designed this Jianjiao 7A, plus the follow-up Jian-74 can have an export record like the MiG-21, it will not be in vain, and it is not bad to get the title of a late bloomer.

"Where. Where, the current Jianjiao 7A does not deserve this title, the engine of this fighter is not the turbofan 10 originally planned to be installed, and it is not perfect. ”

This is a big truth, just want to be modest, but others sound more supportive of the excellent design of the Annihilation Sect 7A. It's not that the complete body in the design can have such a good record, so what kind of style does the complete body in the back have?

After a polite conversation with these brother units who came to participate in the telex flight control project, Chief Engineer Yu finally took a step forward and handed over the rest to Yang Hui.

"Secretary-General Yang, this is the second time we have met, this time we came to you to ask for support, you don't want to hide it."

Looking at this visitor from the brother unit who claimed to have met him, Yang Hui thought carefully, looked at the appearance of this person, and knew that he was from the northwest at a glance.

"Oh, I remember, it's a guest from Hongqi Factory, right, I still remember the last time we developed a high-temperature turbine from the Second Institute of Science and Industry in Southwest China, you came to assist us in tackling the unsurpassed precision casting technology, right."

Yang Hui also guessed correctly, this is the old technician who assisted the No. 2 Institute in overcoming the high-temperature turbine technology of the Hongqi Factory last time, and he was also the first to propose to improve the high-temperature turbine technology of the turbofan 9 engine in the Hongqi Factory.

"Yes, this time I am in charge of our turbofan 9 high-temperature turbine project in our factory, and the technology provided by the British is not as good as the high-temperature turbine of the turbofan 10 engine developed by you." (To be continued......)