930 Turbofan-6G with a lifespan of less than 100 hours (to follow the wind, Dameng 4/5)
No one expected that he originally thought that Project No. 10 would have to wait at least several years before entering the prototype trial production process.
It has only been three years since it started in 1984!
Now, the prototype trial production of the Super-7b has just started, and the first flight has not even begun. Project No. 10 has to start the prototype trial production again.
"Is there no technical problem?" Li Mingshan asked, "If there is no technical problem, it is time to enter the trial production stage, and you must enter the trial production stage."
What he was worried about was that 132 and 611 were stimulated by the 404 pattern.
Before the technical design is completed, we start the prototype trial production first, design and production while improving.
Project No. 10 is a key national defense project, and the Air Force pays for it.
The 404 is different. It is originally a joint research and development project between China and foreign countries. The research and development funds are borne by foreign countries, and even the design and production will be ordered. The 404 holds more funds than the entire country's annual military budget, and spending money is not a problem at all.
"Chief, after the J-9 was lowered from its original performance indicators in 1975, it was basically close to success when it was dismounted... The main reason for dismounting was that the technical difficulty was too high and the supporting system could not keep up. At present, both the control system and the radar system could meet the conditions. And with the change of use, some designs in the original development process could be used..."
As the chief designer of J-10, Song Wencong naturally has a very high voice for the entire project.
The original design indicators of J-9 were even better than Project No. 10 in many aspects, but the only thing that was worse than Project No. 10 was its purpose.
After all, in that era, high-altitude and high-speed were the mainstream development direction in the world.
Nowadays, fighter jets around the world no longer pursue high-altitude and high speed, but instead pursue the comprehensive performance of multi-task mode.
In addition, some aerodynamic layouts proposed by Xie Kai were originally designed by J-10. During the design and development of Super-7a and Super-7b, the 611 was originally the main focus. Later, the 404 continued to poach people from 601 and other domestic fighter aircraft design units, and they were all technical backbones, which gradually turned into cooperation.
Many designs come from 404. What the design team needs to do is to constantly prove whether these designs are useful.
“The avionics system has also been solved?”
"There is a pulsed Doppler radar on the 404 side, which is a multi-controlled array focal plane radar. The maximum search distance is 120 kilometers, the upper visual distance is 70 kilometers, the lower visual distance is 60 kilometers, and the rear visual distance is 30 kilometers. It can track 16 targets at the same time and attack 8 most threatening aerial targets... This radar is what they are preparing to use on Super-7b." Xiong Hongyuan said quickly.
It's not that he doesn't want to say it.
If the No. 10 project starts to be tested for prototypes, the fire control radar will really need to be provided by 404.
After all, the J-10 and the Super-7b are similar in many aspects, and have similar performance, which is suspected of grabbing funds.
Whether it is Super-7a, Super-7b, or Project No. 10, these three models of fighter jets are very similar in many aspects.
They were originally from the dismounted J-9.
"So, if the Super-7b uses a dual-engine turbofan-6g, can the maximum take-off weight exceed 25 tons?" Li Mingshan did not receive a reply from 404 before.
Now after listening to the introduction from 611, I feel that these guys from 404 have other ideas.
It is said that the Super-7b is prepared for the domestic air force, but with the investment from Pakistani people, no matter how you think about it, you feel that this is not reassuring.
Unless 404 is ready to be exported from the beginning -7b!
With a weight of ten tons and a maximum take-off weight of 22 tons, even if it carries half of the fuel, it can carry 6 tons of ammunition.
This performance is more than the ammunition that the H-6 Master, which is specially used for bombing, can carry normally.
"It's OK in theory. The turbofan-6g is currently the most important research project of Dongfeng Power Plant. Although its performance is good, it has a fatal flaw..." Xiong Hongyuan was worried that 404 would settle the score with them by then.
After all, they don’t know what those 404 people are thinking.
The maximum take-off weight of the Super-7a can be significantly increased, but they are all limited.
"What's the problem?" Long Yaohua asked in confusion.
He was a little confused.
It also says that it has been successfully developed, and it also says that it has fatal flaws.
Can it be used if it has fatal flaws?
“The service life is too short…”
“How short?”
"If the afterburner is not activated, the service life will exceed 300 hours. Once the afterburner is activated, especially if the afterburner is activated frequently, the service life will be less than 100 hours..." Even if the truth is told, it may affect the prototype trial production work of Project No. 10, the people from Factory 132 still have no hesitation.
Because of its excellent performance, the turbofan-6g has higher requirements for materials and manufacturing processes.
The higher the combustion efficiency of the turbofan engine, the higher the temperature of the combustion chamber.
The basic material problem has always been the key to plaguing the development of equipment and technology in various fields in China.
Long Yaohua was silent.
Li Mingshan no longer thought about the 404 people's thoughts on exchanging the double-speed Super-7b export for development funds.
Such a service life is simply not practical.
The service life of an engine is less than 100 hours, and the production cost is several million. Then, the engine usage cost of tens of thousands of yuan per hour, plus other costs, several aircraft are used for testing, which the Air Force can still support.
Even if one regiment is equipped, the entire Air Force will go bankrupt.
No wonder the 404 people did not say that they would ask the Air Force to place an order now, nor did they introduce too much about equipting the turbofan-6g to the Super-7b. Instead, they hoped that the national aerodynamic system would mobilize elite troops and jointly tackle key problems.
"If the No. 10 Project uses a turbofan-6g engine, this cost..." Li Mingshan felt pain.
The military cannot withstand such consumption.
"Chief, during the trial production process, only part of the funds needs to be allocated, and we raise some of them ourselves." Xiong Hongyuan was afraid that the superiors would disagree.
Now Factory 132 has many production tasks, and other private product units can also bring a lot of profits. There is still no problem in supporting the prototype test and test flight of Project No. 10.
At worst, I will rob some of the funds of 404 with shamelessness.
The production unit of turbofan-6g is Dongfeng Power Plant, which is a subordinate unit of 404.
Project No. 10 uses engines that cannot be put into use at all. Can they not share some funds?
Long Yaohua and Li Mingshan were originally going back, but after learning about these situations, they naturally couldn't leave again.
It just so happened that Zheng Yucheng and the others were here, so they took the initiative to find them and asked to go to Dongfeng Power Plant to find out the situation.
Dongfeng Power Plant has now integrated many excellent aero engine design and manufacturing technicians, and is also updating production equipment. Liao Dongfeng is now in the time to be proud.
I heard that Long Yaohua, Li Mingshan and others came to the factory to inspect and organized a group of people to line up to welcome him hundreds of meters away from the factory gate.
Xie Kai dislikes this kind of thing the most, but it cannot happen now.
Long Yaohua and Li Mingshan and others crossed the welcome team and directly asked to go to the workshop to understand the situation, which made Liao Dongfeng very upset.
From time to time, they secretly asked Zheng Yucheng and the others what the boss was doing.
"I heard that the service life of your turbofan-6 is less than 100 hours?" Long Yaohua asked before he even arrived at the workshop.
The expressions of Liao Dongfeng and Sun Hong and others changed immediately.
"The chief, if the force is not activated, you can still use it for more than three hundred hours..."
"The fighter plane goes to the sky, don't drive up the force? Just fly and play like this? Or if the bombs and missiles are lost in the sky, they will evacuate?" Li Mingshan asked back.
Liao Dongfeng immediately said nothing.
Seeing that the two big guys were not good, Xie Kai winked at them, and saw that Zheng Yucheng and the others had no idea where they were. He was the one who winked at this moment, so he could only come forward by himself. "Chief, although WS-6 had completed ground tests before, the materials and manufacturing technology could not keep up with..."
"Everyone knows these." Long Yaohua is very popular now. "Are you going to continue to produce this kind of engine with a service life of less than 100 hours? Is the cost calculated?"
"Chief, our technology is developing..." Xie Kai hurriedly explained.
The service life is less than 100 hours, which is a problem of continuous reinforcing.
No one can quickly solve domestic technical problems.
"The inlet temperature of turbofan-6g reaches 1210° in normal working conditions, and the inlet temperature of the afterburner thrust reaches 1370°. The current high-temperature alloys in China cannot support long-term work..." Sun Hong also quickly explained.
It’s not that they don’t work hard, the materials and manufacturing processes cannot keep up.
"Chief, the new generation of nickel-based high-temperature alloy developed by us in cooperation with the Institute of Materials is currently in the test stage... As long as it is successful, the problems encountered by the turbofan-6g engine will be effectively solved." Zheng Yucheng understood why Long Yaohua and the others were angry.
The Super-7b turbofan-6g engine used for domestic air force!
"Yes, chief, not only the material problem will be solved, but even the manufacturing process, we have a large press, and the die-cast impeller can withstand higher temperatures..." Xie Kai also understood why Long Yaohua and the others got angry.
The boss was worried that they would use this intention to give it to the Air Force, and then the Air Force could not afford it, so they could legitimately export this fighter jet.
No one can do anything about the engine.
The development of the turbofan-6g was stopped in 1983 because the J-9 and Qiang-6, which were suitable for the dismount, stopped in 1984.
Historically, the No. 10 Project was started in 1984, but the Turbofan-6 could not meet the needs of the No. 10 Project. The domestic and international engine technology level was further expanded. It was not until October 1987 that the Turbofan-10, which was equipped with the J-10, was approved.
Now, Xie Kai's butterfly flapped his wings, and the No. 10 project has been accelerated. No news has been heard yet on the turbofan-10 project that was originally supposed to be carried out by 606.
However, Dongfeng Power Plant is preparing to launch a large thrust engine with a thrust weight ratio of more than 10!
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Chapter completed!