The status of aircraft engines in the international arena is far from having a great impact on the civil aviation system, and to a large extent determines the real height of the scientific and technological level of a country's national defense industry, and it is also of great significance to the improvement of national defense level and strength. ,!

There are many countries in the world that can build automobiles and automobile engines, and there are not a few countries in the world that can build rockets and missiles, but there are very few countries that can manufacture excellent aircraft engines.

If you don't count Dongchen, China's achievements in this ultimate field of industry are very lackluster, for decades, whether it is civil aviation or military field, the domestic manufacturing level is only from not making to the point of barely making, what is reluctantly made, in the most vulgar and practical words, is to compare goods to throw.

Whether it is thrust-to-weight ratio, fuel economy, safety, reliability or endurance, the whole line of domestic products is lower than the manufacturing process of Russia, and even inferior to the former Soviet Union, and in fact Russia itself has now fallen into the second-rate countries in the field of aero engines, not to mention China? To use the simplest analogy, an American engine can fly 10,000 hours in the sky before it is overhauled, while a Chinese engine has been scrapped after 5,000 hours of cumulative flight.

In the blink of an eye, Dongchen has become the top in the industry from an enterprise with no related accumulation, although all of Dongchen's products are now developed around the civil aviation system, but in the view of Western countries that have gone through civilian, military, and mixed military and civilian routes, Dongchen has the ability to produce high-end military aircraft engines. This point can be seen very clearly from the design level, manufacturing process, advanced materials and overall performance of Dongchen, there are only four types of aero engines: turbofan engines suitable for large civil aviation, cargo and transport aircraft, turboprop engines suitable for large take-off weight and slow speed, turbojet engines suitable for military fighters, and turboshaft engines suitable for helicopters.

These four types of engines, from the root, their technical extensibility is almost the same as that of automobile engines, nothing more than naturally aspirated engines, turbocharged engines, supercharged engines and even supercharged engines with increased nitrogen accelerated combustion. And if you expect Lifan to be able to eat all these lines, it's best to wait for him to build the naturally aspirated engine first.

It is also for this reason that Western countries attach great importance to the test flight of Dongchen, if the test flight of Dongchen is successful, and it is announced that the entire line covers the entire field of civil trunk passenger and cargo aircraft engines, then it will not take long for Dongchen to be able to build a turbojet engine more powerful than the F22.

Zhang Wenhao knew that he would not be able to avoid this kind of questioning and speculation, and even Director Liu vaguely expressed the wishes of the high-level, that is. When will Dongchen start the R&D and production of turbofan engines?

In Zhang Wenhao's mind, the answer will take at least a while.

At this time, he was sitting in the BBJ2 business jet and went to Seattle with Zhang Wenhao. There are three unfamiliar faces that Zhang Wenhao is not familiar with, they are from Chengdu, Shen and AVIC and other state-owned enterprises with strong defense backgrounds, and all of them are chief engineers of these three companies who are responsible for engine design and research and development.

These people were all arranged by Director Liu, Zhang Wenhao couldn't refuse, and they rarely talked to Zhang Wenhao, because Zhang Wenhao knew in his heart that the purpose of these people following him to Seattle was to be the most careful bystander and observe Dongchen's current aero-engine manufacturing strength. What a height?

Zhang Wenhao thought that the addition of some additional third-party personnel would be a big headache, but when the plane landed at Boeing's test airport in Seattle, Zhang Wenhao really realized how powerful the battle of this test flight was.

Except for journalists, Boeing Military Aircraft, Lockheed. Martin, Pratt & Whitney and other three pillar enterprises of the United States military aviation have sent special personnel to visit and study and provide necessary help, for Raymond, directly from the White House's orders and arrangements. He couldn't refuse either.

As soon as the two met, they poured bitter water on each other, and Raymond was afraid that Zhang Wenhao would be angry because of the sudden increase in the number of people on his side, so he just got the opportunity to talk to Zhang Wenhao privately. said apologetically: "Zhang, I'm really sorry, I can't refuse these people from a third party." ”

Zhang Wenhao nodded and said lightly: "I understand, I also empathize with this." ”

Raymond asked, "The Chinese side also sent people to participate?" ”

Zhang Wenhao smiled helplessly and said: "Participate, let's participate, originally we want to test the flight is a civilian engine, these engines will be sent to all over the world sooner or later, governments and defense departments around the world can be very easily obtained, in this case, it is better to let them participate from the beginning, and maybe bring some government orders to Dongchen." ”

Raymond also spread his hands helplessly and said, "You know, they are more concerned about whether Dongchen now has enough strength to produce pure military aircraft engines, especially fighter engines." ”

Zhang Wenhao smiled: "What's the point of them caring about this? If Dongchen is not involved in the production of military engines, even if it has this kind of strength, what is the point. ”

Raymond explained: "They always have to measure a country's potential national defense level to improve the space, if Dongchen shows enough research and development capabilities, I think many countries that list your country as an imaginary enemy, will immediately allocate funds to accelerate the improvement of their country's strength in this area, I think you also have some understanding of the history of the Cold War, the two sides are completely like red-eyed girls, you buy a Chanel today, then I will get a Versace tomorrow, you sleep with a male model today, I will sleep with an actor tomorrow, if I know that you are pregnant." and I don't have a boyfriend. Then even if I am artificially inseminated, I must get pregnant as soon as possible, and I can't fall half a step behind. ”

Zhang Wenhao laughed at Raymond's ridicule and said, "Raymond, your analogy is really very incisive!" ”

"Tell you the truth!" Raymond smiled: "This law is also applicable to Dongchen, do you dare to make a bet with me?" If the three new engines launched by Dongchen are a big success, Pratt & Whitney, Rolls-Royce, Snakma, Rurika Saturn, and Mitsubishi Heavy Industries will receive government grants to develop better military engines for the militaries of various countries, even countries like India. They will also come up with a lot of dollars and ask the United States and Russia for help, either to introduce better engines or to seek joint research and development. ”

Zhang Wenhao couldn't help laughing out loud and said: "India's so-called joint research and development is actually a big injustice for sending money, right?" ”

"That's right." Raymond nodded: "They don't have enough manufacturing strength, and they generally use the guise of joint research and development to satisfy their own self-improvement psychology, and generally, countries such as the United States and Russia will only take out their second-tier technology." And then get more dollars from India, and then do the so-called secondary research and development. Losing second-tier technology to India in return. ”

Zhang Wenhao nodded and said with emotion: "According to what you say, as long as Dongchen succeeds this time, countries such as the United States, France, Japan, India, and Russia that you just mentioned will immediately accelerate their research and development work in military aero engines?" Wouldn't they wait for Dongchen to actually build a military engine before making a decision? ”

"No, it won't." Raymond said very firmly: "Although the arms race between countries is not as crazy as it was during the Cold War, everyone knows that areas of great strategic significance must be grasped in advance, that is, a certain amount of advance." I don't wait for your next-generation products to come out, and then catch up, as long as I think you have the action or ability and advantage to develop the next generation of products, I will immediately start my own research and development, so that even if you can't catch up, at most it will only be half a generation slower than you. You won't be left far behind by a generation. ”

Zhang Wenhao laughed secretly in his heart, if what Raymond said was true, then after Dongchen's test flight, I am afraid that these countries will spend extra money in the field of military engines. At least more than 10 billion US dollars, which is invisibly, it is equivalent to promoting the rapid development of this field, but by that time, the domestic manufacturing level and overall strength, I am afraid that it will be even more backward, right? After all, a powerful country like the United States and Russia, under the condition of having a better foundation, has a much higher degree of exertion than at home.

It was also at this time that Zhang Wenhao thought in his heart that if the test flight of Dongchen engine was successful this time, and these countries would immediately have corresponding catch-up actions as Raymond said, then he should also consider turning Dongchen Aviation Engineering from a purely civilian enterprise to both military and civilian, such as the previous Pratt & Whitney This kind of enterprise, its own engine is not only used in Boeing, Airbus models, but also covers F-15, F-16, F-22, F-35 These advanced fighter models, in fact, The world's three aero engine giants have a considerable degree of military blood, Rolls-Royce also provides engines for FA-18 Hornet carrier-based aircraft, F-35 engines also have its share of credit, even the engine used in the British Harrier fighter, he and Pratt & Whitney jointly completed, GM is not idle, half of the F-16 uses GM engines, and the Indian Air Force is also one of GM's big customers.

If they really want to catch up in the field of military engines, then Dongchen will have to use practical actions to make them realize that no matter how much they catch up, it will be a futile ......

The whole United States is extremely concerned about the news that Dongchen chose to join forces with Boeing in Seattle, and at the same time, more and more "guest guests" have also poured into Boeing's test flight center in Seattle, although Boeing and Airbus are mortal enemies, but it does not mean that the United States and Europe are mortal enemies, Rolls-Royce is coming, Snecma is coming, and even Mitsubishi Heavy Industries, which has made secret transactions with Zhang Wenhao and was pitted by Zhang Wenhao with a new alloy steel and was unaware of it, also came.

Anyway, it's a visit, standing outside to visit is also a visit, standing in front of the visit is also a visit, Zhang Wenhao is not worried that someone can copy the core technology of Dongchen engine, even if it is disassembled, it is impossible to achieve, at least these countries will not be able to do it in more than ten years, so Zhang Wenhao is also very generous in this regard.

Since Boeing has always had very strict standards for test flights, they don't produce engines though. But the performance of the engine determines the performance of their aircraft in the sky, so Boeing has always had a full set of engine test platforms, before the engine is hoisted on their own aircraft, they must know the weight of the engine, maximum thrust, fuel consumption and reliability for a series of tests, confirmed that it is correct, and then will test the flight according to the specific parameters, and even need to change the counterweight of the aircraft according to the different engines.

Although Zhang Wenhao has given Boeing all the data about these three engines, for the sake of safety, Boeing still needs to verify the specific parameters of the engines first and draw a final conclusion that he has seen with his own eyes.

The test is only open to individual media in China and the United States. But the entire onlooker team also reached an astonishing scale of 30 people, of which more than a dozen were third-party personnel who came to make soy sauce, and the first test was also the maximum thrust and fuel consumption of the Dongchen engine.

These two tests can be completed at the same time, maintaining the maximum thrust of the engine, not only to get the maximum thrust of the engine, but also to get the fuel consumption under the maximum thrust of the engine after running for a period of time, Zhang Wenhao hugged his shoulders. Completely from the perspective of a bystander, watching the Boeing gang tinker around these three engines all day. In the end, it was concluded that the maximum thrust of the three engines of Dongchen was no different from the design thrust and actual thrust data given by Dongchen, and the comprehensive fuel consumption, like DC1-1, was about 40% lower than that of the current thrust of the most advanced engines of the same level.

The expressions of more than a dozen members of the soy sauce group instantly darkened the moment the results came out, and a sentence was written on everyone's face: "This is still a egg." ”

It is really impossible to play, Dongchen not only has better design capabilities, but also masters materials and manufacturing processes that others cannot imitate. Even if all the engines were dismantled and all parts were completely imitated 1:1, the final engine would not be comparable to the engines of the company, and even the special design of the engine would not be usable at all if the materials and manufacturing process could not be guaranteed.

Companies in the United States, Britain, France, Japan and other countries have tried to imitate Dongchen automobile engines, but just one point has made them never succeed. In other words, the engines they built according to the specifications of Dongchen will never be able to withstand the same pressure and heat as the Dongchen engines, and the same pressure will be maintained in the combustion chamber. The Dongchen engine runs perfectly, and the engine they make will collapse in no more than five minutes, and the same is true for the aero engine, Pratt & Whitney and GM have also secretly copied the engine that Zhang Wenhao sold to American Airlines, and came to the conclusion that copying Dongchen is a road that will never work.

Pratt & Whitney's highest-end military engine designer told the U.S. military after disassembling and studying the Dongchen engine that if Pratt & Whitney has Dongchen's manufacturing process and materials, without changing the original design, the F119-PW-100 turbofan engine used in the F-22 can increase the thrust by at least 20%, and if the F119 engine is slightly changed to reduce the F119 and reduce the weight of the F119, the thrust will not change in any way, but the fuel consumption of the engine will also be reduced by more than 20%.

For military aircraft, fuel consumption is an indicator that is enough to kill everything.

What is the combat radius? To put it bluntly, the combat radius is that your fighter takes off to fight, under the premise of ensuring that it can fly back, the farthest distance that can run, if it can fly 3000 kilometers with full fuel load, then the combat radius is below 1500 kilometers, about 1200 kilometers, and the combat radius of the fighter cannot be compensated for by tankers, because real air combat is not the work of one or two fighters, but dozens or hundreds of fighters fighting together, in this case, tankers are of little significance.

This is also one of the reasons why the military around the world is concerned about the test flight of Dongchen, if Dongchen has the strength to make the full range of engine thrust not reduced, fuel consumption reduced by about 40%, once they build a fighter is fortunate enough to use this technology, then the combat radius of the fighter will be nearly 40% increase, take J-20 as an example, the maximum combat radius is now said to be nearly 2000 kilometers, if this rumor is true, then J-20 takes off from an inland airport in eastern China, The combat radius is far from covering Tokyo, but if there is a 40% or even 30% increase, it is enough to cover 70% of Japan's territory, and if it takes off from an airfield in the southwest, it can cover the entire territory of India, even if its combat radius is not so high, but the 30-40% improvement space is enough to make others frightened.

And the military of various countries is not only worried about the problem of combat radius, because Dongchen is in the field of civil aviation, he will focus on fuel economy, if in the military engine, Dongchen has a different angle? What kind of change will be made if the engine is not interested in fuel economy but is intended to increase the thrust-to-weight ratio of the engine?

The thrust-to-weight ratio of the engine means the ratio of the thrust of the engine to its own mass, if the weight of an engine is two tons, and the thrust-to-weight ratio is 10, then the maximum load that the engine can achieve is 20 tons, if it is a single-engine fighter, then the maximum take-off weight of the aircraft is 20 tons, the weight of the 20 tons is quite valuable, the weight of the aircraft itself, the weight of fuel, the weight of the pilot and the weight of the combat load are counted, but if Dongchen has the ability to reduce the fuel economy, What would it be like to increase the thrust-to-weight ratio? Assuming that the thrust-to-weight ratio has also been increased by 40%, then, the thrust-to-weight ratio has reached 14, and the maximum take-off weight of this aircraft has reached 28 tons, which is 8 tons more valuable weight, which can carry more combat loads, and can be equipped with larger and more effective avionics equipment.

Now, the four engines before and after Dongchen have maintained the high standards of Dongchen, which proves that Dongchen's technology is very mature, not only limited to DC1-1, but has enough space for technical expansion, which makes the members of the soy sauce group present feel a deep sense of powerlessness and crisis.

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