Chapter 536 Facelift

The RD-170 engine has four nozzles, because Lao Maozi has no way to control the combustion instability of the liquid oxygen kerosene engine with large nozzles, so he simply adopted the design of four combustion chambers, so there must be four nozzles up.

Of course, it cannot be considered that this engine is a combination of four engines. Although there are four combustion chambers, it has only one turbo pump. This is the coaxial pump characteristic of Lao Maozi. And the fuel pump, which pumps the four injectors and thrust chambers simultaneously, is very compact. There is no other country in the world that can manufacture this turbo pump alone.

   This also ends the problem of simultaneous ignition of the four combustion chambers, pumping oil together and burning together. Moreover, in order to ensure complete combustion, it also has a special pre-combustion chamber, because it uses the advanced staged combustion technology, which is the only one in the world. In terms of playing with fire, Lao Maozi is still very good.

   In this way, a complete RD-170 engine has four combustion chambers and nozzles, a turbo pump and two pre-combustion chambers. The thrust is extremely powerful, the first in the world, but no one uses it.

How to do it?

   Hack it!

   Split in half from the middle, leaving only two combustion chambers and nozzles, the pre-chamber is also reduced to one, and the power of the turbo pump can be reduced, so that the purpose of reducing the thrust by half is achieved.

  When he heard this sentence, the American was obviously very happy: "If the thrust can be reduced by half, then we Lockheed can purchase a batch!"

  Lockheed!

  Who said there is no support for our international defense exhibition? The Americans are all here, and they are also American military giants!

  The person who spoke at this time was Jobs, an expert on Lockheed's rockets. Although he came in a private capacity, he could still speak on behalf of the company.

   "Just wonder if this rocket engine can make that kind of improvement?"

"Of course." At this time, another person has come over, he is the chief designer of the power machinery research and production complex Landowski, he patted his chest and assured: "Please rest assured, we are very satisfied with this engine. Familiar with it, it is no problem to split it in half, if you have an idea, we can go in and discuss it in detail."

   After finishing speaking, Landowski looked at Qin Tao again: "Boss Qin, you can come in together."

  Qin Tao shook his head: "Forget it, I won't go in. Let's talk, I hope you can reach a cooperation intention and add luster to our defense exhibition this time."

  Old Wu stared intently for a long time before finally sighing and leaving with the others.

   "Mr. Qin, why didn't you go in and get involved?" Mr. Wu asked Qin Tao curiously: "This kind of big rocket is much better than NK-33."

   "Yes, this is the strongest existence in Lao Maozi's aerospace industry. However, it is not something we can dabble in. Since we don't have this opportunity, it is useless to see it. Let's go."

  Qin Tao is self-aware.

  The NK-33 engine has never been installed, and has never been tested in practice. Until now, it has been left in the warehouse to collect dust, so he can easily purchase it.

   However, the RD-170 engine is different.

  There is both cooperation and concerns between Dongfang and Lao Maozi. Lao Maozi is not willing to hand over some advanced technologies to Dongfang, and the rocket engine is one of them.

   Want to buy an RD-170 rocket engine? no way!

   Want to buy an RD-180 cut in half? No way!

  Don’t look at the cheerful transaction with the Americans, that’s because they are sitting at the same height. In the world aerospace camp, they belong to the first echelon, and they have no idea to play with the people behind.

Until 2018, there were more and more opposition voices in the United States, demanding the launch of domestic rocket engines, and they could no longer rely on the purchase of RD-180 to live on. Seeing that this engine could not be sold, Lao Maozi began to cooperate with Dongfang. For a while, rumors were flying all over the sky, saying that the country would spend 50 billion to purchase this engine and technology. But in the end it didn't happen.

  On the road of aerospace, you have to base yourself on self-research, and others are unreliable.

  Although the Americans say no, their bodies are very real. No matter what doubts they have, they have not stopped purchasing the old Maozi’s rocket engines. It’s so delicious!

  If Qin Tao gets involved, he will only come out in disgrace.

If there is no accident, Lockheed will have a hot fight with the power machinery research and production complex. The two parties hit it off and used the RD-180 engine on the Atlas 5 rocket. The price seems to be 10 million US dollars. Later, hundreds of units were imported.

   This is also a treasure of the aerospace industry for all mankind! Mr. Wu was a little bit emotional, his side really didn't have the ability, and there was no need, after all, the thrust of this rocket engine was too strong, so there was no need for our side to make such a big rocket.

For the current manned spaceflight project, it is enough to use Long March 2. For the future space station plan, it is enough to have a new generation of Long March 5. There is no need to develop rockets of this level. When the manned moon landing project is completed, There is already a new generation of technology in China.

"Mr. Qin, Mr. Qin!" At this moment, Xu Zhengyang received the call, and then excitedly said to Qin Tao: "I just received the news that American Airlines Jet Company is inspecting the NK-33 engine, and Valentine has introduced it to them. I have some technical data, but I need to talk to you about the procurement negotiations."

   American Airlines Jet?

  Qin Tao also opened his eyes wide: "Okay, but I don't have time right now. Tell them, after today's defense exhibition is over, let's find a place outside and chat while eating."

  Wu Shengli is also extremely emotional: "You boy, you are so lucky, you can make a lot of money just by changing hands. Can't you sell one million units?"

  Bought back for $100,000 and sold for $1 million, it took less than half an hour. When did it become so easy to make money?

"One million?" Qin Tao smiled: "Now we are talking about cutting off half of the RD-180 engines, and we can sell them for 10 million US dollars. If the thrust of our RD-180 engines reaches half, we still don't sell them. Four to five million dollars? If it's auspicious, we'll sell him for 3.88 million dollars!"

  Qin Tao is also very happy in his heart.

  After the collapse of the Red Empire, HP purchased the RD-120 liquid oxygen kerosene engine, and American Airlines Jet purchased the NK-33 liquid oxygen kerosene engine. However, the exact date is unknown. As for Lockheed's purchase of the RD-180, some say it was in 1995, while others say it was in 1999.

  I don’t care about those, now at least these projects are carried out at the Capital International Defense Exhibition held in the East. This International Defense Exhibition held in the East was very successful!

   "There's nothing to see here, let's go to the aviation exhibition area next." Qin Tao said: "It's a pity that our J-15 fighter jets didn't come to participate in the exhibition, otherwise it will definitely attract the attention of others and be dazzling."

   "We also have to save some face for the old man. Sukhoi is also here. It's not good for us to smash people openly like this." Wu Shengli said.

Since the air show will be in a few months, there is not much equipment in the aviation exhibition area of ​​this international defense exhibition. Even if Sukhoi and Mikoyan Design Bureau come to participate in the exhibition, they will bring models. The entire exhibition area Only the fighter planes produced by Dongfang itself were dragged here.

  Jianqi and Jianba are regular visitors, and they will not miss any exhibitions, and Jiaoba will naturally come to join them. If you want to say that the most eye-catching in the entire exhibition area, it is definitely Jian31A.

The C position in the indoor exhibition hall is occupied by the J-31A. This aircraft is already in the state of a real aircraft, and it will be even more attractive when it is exhibited. The limelight of the entire exhibition area is almost taken away by this aircraft. I don't know how many reporters are surrounding it, snapping photos.

  The shape of this plane is completely different from ordinary planes. It has a diamond-shaped nose, butterfly-shaped wings, and the two vertical tails at the tail are tilted outwards. It looks very special.

  Of course, the most dazzling thing is its canopy, which is covered with a layer of golden color.

  Zhao Dangsheng was still there to make an introduction, and now it happens to be introduced on the cockpit cover.

   Once upon a time, even a suitable cockpit windshield could not be manufactured in China. The J-7, J-8 and even the Flying Leopard used in China still used a three-piece windshield, and the glass on the front of the pilot was flat. It's not that the designer doesn't know those bulkheads block the light, but because the integral windshield cannot be manufactured.

  Looking at foreign countries, such as the F-16 in the United States, the windshield has been directly canceled and replaced with a whole canopy, without a single frame, and the field of vision is extremely wide.

  Even when the production of the Su-27 was just started, the windshield was not completed in China, and the simple glass had to be imported. Until recently, only domestic companies have completed the matching of the canopy and windshield.

  Looking at the J31A in front of you, it is even more emotional.

It did not remove the bulkhead like the F-16 fighter, there is still a bulkhead in front of the pilot, but because it is opened forward, it is integral, and the glass surface has yellow reflections, which makes people feel Very surprised.

"In order to reduce the reflection of radar waves from the equipment inside the cockpit, we coated the whole cockpit cover with a layer of gold." Zhao Dangsheng introduced there: "We either don't do it, or we do it to the best. We must use any method that can reduce radar reflection, so that it has the smallest radar reflection area."

  The canopy is actually coated with a layer of gold!

  Actually, for an expensive fighter, this layer of gold is not that expensive, but it immediately looks taller.

  The people below were immediately moved.

  Golden cockpit, golden cockpit!

"As you can see, our plane is black all over. This is because we have sprayed a layer of stealth coating on it. At the same time, because it is sprayed with a stealth coating, everyone can only view it from a distance and cannot touch it at close range. It may cause our secrets to be leaked."

   A group of reporters expressed their understanding.

Of course, these people can't touch it with their own hands, otherwise, the secret of the ordinary black paint will be revealed, and the real stealth coating is still early. When this carrier-based aircraft is completed and delivered to users, it can be developed and qualified. The paint is almost the same. Of course, the most important time node is still 99 years.

  Although it is not there yet, it has to pretend to be something, and it cannot be cowardly. Every time it is publicly displayed, there must be new results.

   "Excuse me, is this plane already capable of flying?"

"That's right, we are currently conducting a sliding test. When the sliding test is over, we will make our first flight. If there is no accident, we will definitely be able to complete the first flight before the end of this year. This will also become a sign. Our The J-31A project will enter a new era!"

  Although there are still many problems with the built-in bomb bay and weapon system, but now, as long as it is a shell, a shell with an engine and a flight control system, it can fly!

In fact, it is impossible for any fighter jet to be complete during the first test flight, and only the domestic J-15, which was originally refitted from a mature aircraft, can integrate various weapon systems during the test flight. It's all set up.

"Mr. Qin, your progress is too fast. A failed product of the Yakovlev Design Bureau has come to this stage. It's very rare." Just Qin Tao and a few people watching from the outside At that time, someone came over and sighed.

  Qin Tao turned his head and saw a familiar face: Yemelyanov.

The Sukhoi Design Bureau originally sent a large number of people in the east. For others, this kind of international defense exhibition has to come all the way. For the Sukhoi Design Bureau, there is no need to go through any formalities. Came from Factory 112 by train.

Qin Tao's face was a little ugly: "Mr. Yemelyanov, I am very dissatisfied with what you said. Our J-31A project is an innovative product independently developed by us. What Yakovle? It doesn’t matter if you are a husband design bureau, there are always people who can’t wait to find a foreign father for our products, which is belittling our spirit of independent innovation.”

   Yemelyanov was a little dumb.

No one knows what independent innovation is. You have recruited the research and development team of the vertical take-off and landing fighter from the Yakovlev Design Bureau to form the current team. Although you have created a unique shell, the overall concept is still the same. The Jacques-141 set, now, you actually say that it is independently developed?

However, this can be regarded as the tradition of the Orientals. They are still insisting that J-15 has nothing to do with Su-27. In order not to destroy the cooperation of Su-27, they can only admit it with gritted teeth. Very dissatisfied.

At this time, Wu Shengli also nodded with a smile: "Yes, Mr. Yemelyanov, I have seen the progress of the J-31A project with my own eyes. I can assure you that this The project has nothing to do with the Jacques Design Bureau, I can assure you."

  Wu Shengli's status, Yemelyanov could only nod: "Yes, I'm sorry, I was wrong."

This guy is also very understanding, he admitted his mistake so quickly, Qin Tao nodded with satisfaction: "These news are all rumors, Mr. Yemelyanov, if you encounter similar claims in the future, please correct us. !"

  Rectify your names? Yemelyanov was extremely unhappy.

"The future era belongs to the stealth machine." Qin Tao looked at Yemelyanov: "I wonder if the Sukhoi Design Bureau will make efforts in this direction? If you don't wear a stealth coat in the future, I can’t even go out to meet people. Your fighter jets are very maneuverable, and the Su-37 is even more impressive at air shows, and you are even working on models with better maneuverability to show off your strong design capabilities. However, If we only pursue mobility, I am afraid that we will enter a dead end."

   Yemelyanov's expression changed suddenly.

  Qin Tao continued: "Of course, I just kindly reminded you that you can adopt it or continue to go your own way. Time will tell everything."

"President Qin, what you said is very reasonable." Yemelyanov said: "However, as you know, we originally took the path of plasma stealth, and we don't have any technical reserves in terms of aerodynamic stealth." .It's too late to start from scratch now."

   Not only can't catch up with the Americans, even the Mingzhou Group has to leave them by a large margin!

In terms of maneuverability, Sukhoi's aircraft is unmatched. Moreover, the Sukhoi Design Bureau is still building a unique S-37 fighter jet in the world. It adopts a forward-swept wing structure and has first-class maneuverability. It is expected to fly next year. It will be able to fly for the first time.

However, the times have changed. What future fighter jets need is not so much outstanding maneuverability, but super-class stealth. If there is no stealth ability, it is easy to be attacked by enemy missiles at a long distance, and it is impossible to obtain it. Chances for close combat.

The Sukhoi Design Bureau is still working hard to improve its mobility. This is completely in the wrong direction. However, a designer of Yemelyanov's level cannot decide the direction of the design bureau. Moreover, even if it is to build a stealth machine , it's too late, how long will it take them to start from scratch?

   "How can it be too late? As long as some changes are made on the basis of the Su-27 fighter, it can have good stealth." Qin Tao said.

  Modified directly on the basis of Su-27?

   Yemelyanov became excited: "How to change?"

   "How about a face lift?"

   This is definitely a layman's words, but Yemelyanov began to think seriously. The Mingzhou Group can use the foundation of the Yak-141 aircraft to flatten the stealth J-31A. Of course, our side can also use the Su-27 to modify the shape, so that it can have stealth capabilities. , such changes are the smallest, the mobility will not be reduced, and the workload is not high, it is definitely the best choice.

   "Boss Qin, your suggestion is good, and I will report it to the Design Bureau." Yemelyanov said.

   Is this not bad?

  The others were confused.

   When he separated from Lao Maozi and continued wandering around the defense exhibition, Wu Shengli couldn't help asking: "Taozi, is your introduction useful to them?"

"Of course it works. They saw that we changed the Yak-141 into a J-31A. Of course they will be moved. If they change the Su-27 into a stealth machine, they can continue to keep pace with the Western world. .”

   "Then can they succeed?" Mr. Wu asked, aviation and aerospace are a bit interdisciplinary, and he was bored, so he visited with everyone, and took a look at Qin Tao's demeanor by the way.

   "Of course it's impossible." Qin Tao said bluntly: "Many planes are easy to lift, but some planes are difficult."

easy? Disaster?

  Qin Tao is a shipbuilder. He only has a superficial understanding of aircraft building, but he has a good grasp of history.

"The Yak-141 originally had air intakes on both sides. Let's make some modifications. It's easy to change to the current method. The Su-27 has an air intake on the belly. No matter how it is changed, the engine layout cannot be changed. Only two If the engine compartment remains the same, the air intake will remain the same, and the engine can be seen directly from the air intake, so the stealth performance will have to be greatly reduced.”

The design of the stealth machine is exquisite. The diamond-shaped nose and the parallelogram air intake are the perfect match. The air intake at the back is designed in an S shape, which can completely block the fan blades of the engine, and that thing will strongly reflect electromagnetic waves.

  So, among the domestic fighters, it is very difficult for the J-10 to change its stealth, even if the stomach is bulging, and it has to start a new stove to make the J-20. However, Xiaolong is easy to change.

   Just as he was thinking of this, Qin Tao stopped in his tracks. Unknowingly, they walked to the booth of Factory 132. The booth that should have been lively was now neglected!

   Factory 132's booth has a row of models, almost all of which are modified models of J-7, including of course the ultimate magic modified model: Super Seven.

  The white-haired old Tu sat in front of the booth, watched Qin Tao and others come over, with a wry smile on his face: "Leader Wu, Lao Wu, President Qin, do you think my place looks like a supply and marketing cooperative a few years ago?"

  In the past, the supply and marketing cooperatives were in a monopoly position. If you want to buy things, you can only go to the supply and marketing cooperatives. It has become the golden rule of the supply and marketing cooperatives to never have big enough customers. As long as you beat them, there is a reason.

  In the 1980s, the supply and marketing cooperatives began to decline, and in the 1990s, the supply and marketing cooperatives went bankrupt.

  Qin Tao shook his head: "Of course not. Your 132 factory is the first to go out in the aviation industry. It is a famous brand in the industry. The current loneliness is only temporary."

The 132 factory does nothing else but to remodel the J-7. Xiaolong’s project is also a major modification of the J-7. The road to take is very difficult. From the beginning of Grumman to the later Mikoyan, the partners are in the With constant changes, the shape of the aircraft has gradually been determined. Now this model looks almost the same as the small F-16.

  However, the prospect of this aircraft is still not optimistic!

   Originally, it survived in the cracks. Now, it is also being competed by the J-31A, which further deteriorates the living space.

"temporary?"

"That's right." Qin Tao said: "The biggest advantage of the Super Seven project is that it is cheap. There are always some countries that like cheap goods, especially old buses. They also need to introduce production lines to produce them themselves. 1A is more suitable for the old bus."

  Old Tu opened his eyes wide.

  (end of this chapter)