Data Center of the Intelligence Department of the General Staff.

After 50 million US dollars were deposited into the account of the Swiss bank, Peng Guochen has been waiting for news in the data center, although the smooth progress of this transaction was a decision made after the meeting of the Supreme Council of Elders, but no one raised objections in the middle, and the pressure on Peng Guochen was naturally not small.

"Minister, all data files are automatically unlocked and can be read!"

Peng Guochen perked up and said: "Immediately back up these materials, and hand over the printed documents to the Archives Bureau for safekeeping and provide them to relevant experts for analysis and interpretation, and the confidentiality level is top secret!"

"Yes!"

"Wait a minute! One more thing, didn't he advertise last time that he could sell everything? You ask him on the TT if he can help us get a Russian 117S aero engine. ”

This is just Peng Guochen's temporary idea, which can be regarded as a response to the last war and teasing advertisement, he doesn't think that the war can really get the real thing of the 117S aero engine.

After all, what has been shown so far is its astonishing intelligence-gathering, hacking, and terrorist attack capabilities.

However, as more and more details about the terrorist attacks in Tokyo are gathered, the top brass is very wary of this organization.

During this period, whether it was the national security or the General Staff Department, all the intelligence networks of China at home and abroad were frantically operating, making every effort to find traces of the war, but so far there has been no progress.

The only consolation is that this group has not yet shown any hostility towards Huaxia, but no one can guarantee that they will not do something as great as Tokyo in the country.

And there is a reason why Peng Guochen asked Chen Xin if he could help get the 117S aero engine.

When the Russian defense minister visited China in September last year, the top military officials were interested in purchasing a batch of Type 117S aircraft engines and S-400 air defense missile systems.

However, the protection of intellectual property rights between China and Russia in the field of military cooperation has always been a big problem, and Russia has always been angry about the Chinese side's imitation of the Su-27 (the domestic model is J-11, and its derivative improvement is the J-11B) fighter and the S300 series of anti-aircraft missiles (the domestic model is Hongqi-9), so when the Chinese side proposed to purchase the 117S engine, the Russian reaction was not very enthusiastic.

It's just that the Russian military-industrial complex, out of consideration of practical interests, still has great interest in the export of high-jishu military equipment to China.

But if you really want to get the 117S aero engine, it will take a long time to negotiate and wait, with the first flight of the J-20 fighter, the military's demand for high-performance aero engines is once again eager, and Peng Guochen will have this question.

TT made a dripping sound, Chen Xin opened it, and his eyes suddenly lit up.

117S engine, the military really dares to do this business with him?

Chen Xin hurriedly typed: "Yes, how much?"

Peng Guochen frowned, and the tone of the battle was still as big as before.

Peng Guochen said: "How much can you get?"

Chen Xin turned his head and asked the steel hammer: "Steel hammer, how many units do you think is appropriate?"

's eyes lit up and said, "As much as you want, the more the better, it's all money!"

Chen Xin was already speechless for this guy who got into the eyes of money, thought about it, and felt that he couldn't report too much for the first time in the arms business, so he replied: "About ten!"

The TT of the Intelligence Department of the General Staff was silent, and after a few minutes, there was a reply from there: "Can you really get 117S?"

Chen Xin pursed his lips disdainfully and wrote: "Nonsense! Even the F119-PW-100 can be obtained by us!"

The 117S engine is only a deep modification of the AL-31F engine (equipped with Chinese J-10, J-11 and other fighters), using a vector nozzle, with a maximum thrust of 14.5 tons, and a thrust of 8.8 tons without afterburner, with a full life cycle of 4000 hours, which is twice as high as the original AL-31FP. Mainly used to equip Su-35 and T50 fighters, for now, the 117S engine is actually similar to the AL-31F-M2 engine of the third generation of improved power, and the performance is not enough to be said to be a transitional model of the fourth generation of power.

In comparison, F119 is the United States Pratt & Whitney for the F-22 "Raptor" fighter developed thrust-to-weight ratio of 10 level afterburner turbofan engine, it uses Pratt & Whitney for many years of experience and new research jishu, in structure and performance on behalf of the current most advanced fighter engine level, the maximum afterburner thrust of 17.5 tons, without the afterburner of the case, the thrust reaches 11.4 tons, compared with the level of 117S is much higher.

Peng Guochen took a deep breath and asked, "How much is the unit price of F119?"

Chen Xin wrote: "Twelve million dollars!"

Peng Guochen said: "What about 117S?"

Chen Xindao: "Eight million dollars!"

Peng Guochen felt speechless, this is really a conscience price!

You must know that over the years, the R&D cost of F119 has reached 2.456 billion US dollars, and even if the Yankees fully equip 187 F22s, each aircraft is equipped with two F119s, and produce some more for backup, the number of purchases will be about 400 units, plus material costs and labor costs, the cost will exceed 10 million US dollars.

It is 117S, and the Russian side's offer to the Chinese side has also reached 10 million US dollars.

Peng Guochen no longer considers the truth of this matter, or reports it to the above to decide, if the other party can really get these engines, then the importance of their war situation may have to be increased to a higher level.

Peng Guochen said: "Okay, I will report in time and give you an answer when the time comes!"

Chen Xindao: "OK, ten F119 plus ten 117S turbofan engines, cash on delivery, I will inform you when the time comes!"

After getting off the TT, Chen Xin turned his head and asked Gangyi: ", help me check, which countries will hold large-scale air shows recently?"

The steel hammer head did not raise and said: "June 20th to June 26th, Paris Air Show!"

Chen Xin is overjoyed, the Paris Air Show is one of the largest air shows on shijie, and the F22 and Su-35 will definitely be exhibited, and the F119 and 117S turbofan engines will be dropped.

As a military fan, Chen Xin has a long-standing grudge against Huaxia military aero engines, and now he can do his part in this regard, he will naturally not be stingy.

In fact, the engine has always been China's weakness.

It has been more than 50 years since Prime Minister Zhou Enlai commented on the "heart disease" of Huaxia Aircraft when he was alive. Huaxia's engine is still the biggest weakness of the weapons industry.

Not only turbofan engines for fighters and large transport aircraft, but also turboshaft engines for helicopters, turbo engines for medium transport aircraft, gas turbines for large ships, diesel engines for small and medium-sized ships and tanks...... Without exception, they are all the weakness of China.

Aero engines are the weakness of the underbelly.

So far, in the field of aero engines, the gap between China and the United States is at least about 30 years, a generation to a generation and a half, and we cannot deny this fact.

There are many reasons for this, the first is the problem of industrial base, when China was founded, the industrial base was too poor, not to mention aero engines, not even decent tool steel.

If it weren't for the priceless blood of a large number of young soldiers in the Korean War to consume cheap steel in the United States, in exchange for the Soviets giving us the turbojet engine, Huaxia would not have been able to produce the turbojet-5 engine in 1957.

Compared with other fields, the same poor foundation, the same buzzing setbacks, weishenme aero engine just can't catch up?

For example, now Huaxia is the largest producer of white goods on Shijie, and our smartphones, our radars, our rockets, and our spaceships are slowly catching up.

Our first petascale supercomputer, Tianhe-1, officially topped the TOP500 supercomputer list in November last year.

Even in the weakest chip field, we have also made progress, HUA has launched a high-performance mobile high-end equipment terminal chip for its HAI Semiconductor, which has the ability to compete with international first-line manufacturers, and is very likely to grow into a giant in the field of chips in China in the future.

The avionics system of the fourth-generation aircraft exposed at the LY photoelectric exhibition is in no way inferior to the American F35, and the Americans were surprised to see it.

An air-to-air missile expert in China said leisurely that we are only about 10 years away from the Americans.

The US military also believes that the Huaxia Air Police 2000 is a generation more advanced than the mechanical scanning radar of the E-3 "Watchtower" early warning aircraft equipped by the US military because of its use of electrically scanned phased array radar.

In fact, in many weapons fields, the gap between China and the United States is only about ten years, and what does this mean, it means that there is no generation difference.

But the aero engine is different from the others, because it is so wide-ranging.

At that time, the Soviets successively gave the Huaxia Turbojet-5 (for J-5), Turbojet-6 (for J-6), and Turbojet-7 (for J-7) drawings, Jishu process data and prototypes, but there were two things that we did not get.

One is the design principle, that is, what is the design principle of this engine, what is its hydrodynamic model?

The other is the design experiment data, this elbow weishenme to use this material, other material formula is not OK?bend 75 degrees, extend 8CM, then bend 74 degrees is not OK?extend 7.9CM OK?What is the consequence of positive deviation and negative deviation, this design weishenme is optimal, what is the safety margin in the optimal design?

Without these things, the Chinese made a vortex spray 5/6 in the factory.

Some people commented on this that in the 50s, the gap between China and the Americans was half a generation to a generation, why is the gap widening now?

Joke!

Being able to build it does not mean that you can design such an engine, and your manufacturing capacity may be half a generation behind others. But how bad is your design ability? I don't know, because you're zero, you can't compare.

If you don't have the ability to design, you still can't design a new engine, or you don't know how to change an existing engine.

Huaxia originally imitated so many aero engines, and if they wanted to improve their performance, most of them could only eat safety strength reserves and life reserves, at the expense of reliability and safety.

In foreign countries, under the condition that the entire structure of the existing engine remains unchanged, only some small local improvements can be made to improve the performance of the engine significantly, and it is normal to increase to 120% of the prototype in 5-10 years, and it does not affect the life and strength.

If you don't have the ability to design, let alone change, you don't know how to start even if you give full play to your existing capabilities.

Huaxia's J-6 engine turbojet 6, the whole life is only 100 hours, and it is ridiculed by the Americans as a "one-time engine" (the Americans are 1000-1500 hours in the same period) The same turbojet 6, the Americans got it, analyzed it, reassembled, and the life was doubled!

It's just a matter of design, but there are more issues in areas like materials, processes, shiyan, etc.

In the past, there was an anecdote in the military arena that a certain research institute finally solved the material problem of the powder alloy turbine disc, but when it was ready to be cut, it was found that the hardness and toughness of the machine tool were not enough.

All in all, aero engines are a big test of the entire country's industrial base.

Not to mention China, it is Germany and Japan, the engines before World War II are so good. After World War II, the Americans were restricted, and now their car engines are doing so well, but the aero engine is not good, weishenme, because of the lack of links, it is incomplete.

Therefore, the Germans tried to save trouble and simply bought airplanes instead of building them.

As for Japan, I build airplanes, but I buy American engines. Even if there are a small number of self-built aero engines, many production jishu and production licenses are bought (more importantly, like Chinese imitations, there is a lack of complete design principles and data).

Japan's materials science is very developed, and some of the single basic research is leading in Shijie----- Japan's fifth-generation single crystal alloys have come out, but is there a self-developed aero engine model that is equipped in batches?

As for India, if it is engaged in the IT industry, many semi-finished IT products can be bought, outsourced, and subcontracted internationally.

But as for the industrial base, it is not even up to the mass production of rifle cartridges.

You let him try it in the aero engine industry, the Kavli turbofan engine developed in 1986, Lao Maozi has been a class teacher for 26 years, with a maximum thrust of 7137 kg and a thrust-to-weight ratio of 6, and has accumulated more than 60 hours of test flights in Russia. At the April 2012 India Defense Exhibition, Defense Minister Anthony announced that he would stop research and development because the Jishu target could not be met. At this level of indicators, even China's turbojet 13B in 2003 is not as good.

Therefore, aero engines should be done well,

The first is to ask for money. How much money is needed? How much does a country's modern industrial base need? Not to be saved. Where there is a province, there must be a shortcoming. The development cost of an engine model in the United States has reached $1.5 billion to $3 billion, and the engine is piled up with money.

The second is time. What is the use? Accumulation, continuous accumulation and precipitation of jishu theory and engineering practice experience. You have to be able to do it before you can talk about large-scale production and cost reduction. The courses that should be made up should be made up, theoretical pre-research, core machine production...... If you haven't done that, you don't know what's going on. Sometimes, shortcuts are not possible.

The third is to have an opportunity. What a chance? own model. To go through the complete model process, and to use it on the plane, large-scale use of it, no matter how expensive, no matter what kind of problems there are at the beginning, we must try to use it, change it, and use the model as a platform to realize the continuous optimization of jishu theory, material technology and production.

PS: There is a lot to say about aero engine steel hammers, so don't complain about steel hammer data party, a lot of content in this chapter is taken from a post written by netizens "Weapons Fan Sky" - a brief analysis of China's military aviation engines, if you are interested, you can go and see.

For mobile phone users, please read it on m.biquge.info.