Chapter 199 The once firm belief collapsed

“Your Excellency Nicholas, you are welcome to come to our design bureau to inspect the work.” Alexander Yakovlev extended his hands enthusiastically: “We also welcome the Eastern visitors around you.”

“I am taking the liberty to bother you.” Qin Tao said to Alexander: “I heard that you have a famous Yak-141 here. All the data are much higher than the existing Yak-38, so let’s come and take a look.”

Anyway, we have said hello and named him by name, just to see Jacques-141.

“Of course, no problem, please come with us, our prototype is currently undergoing static testing.”

Aircraft design must be scientific, and all kinds of experiments must be done. A slight negligence will lead to disaster. The prototype of the J-8 built by 601 had just been installed, but it caught fire during the test run, and the entire aircraft was burned down. After struggling for more than half a year, I discovered that a fuel pipe in the engine resonated and broke suddenly. Then the leaked fuel encountered an open flame and caused a catastrophe.

The static test is to check the aircraft's ability to withstand pressure. How much each part can withstand and whether it can meet the requirements. After all, the parts on the aircraft cannot be made as strong as possible. It must be light, and it must be light enough. Strength, but not too heavy, rely entirely on static testing to resolve this contradiction.

This is the first time everyone has seen the Yak-141. Although there are many pillars below it and many booms above it, it looks like it has been pierced by thousands of arrows, but because it is suspended in the air, you can see Clearly.

 Everyone looked up at the plane, their eyes full of expectation.

“Generally speaking, once the static testing machine is built, it means that the entire design has been frozen. With the Soviet scientific research level, it may be finalized in two or three years.” Qin Tao said.

If the plane hadn't crashed, they could have gone to watch the air show, but now, the only one they could watch was this one. Of course, what Qin Tao said now was all for Racul, even if Racul I don't understand what Lao Maozi said, but his adjutant will carefully record everything he hears and sees, and then write a report.

Alexander nodded: "Yes, according to our advance development plan, it will be successfully finalized in the next few years."

He can only say what he doesn't mean, and that's right. According to their pre-plan, the plane should be finalized by now. It's a pity that no one is taking care of it!

"I always think that this vertical take-off and landing method is the most perfect." Qin Tao continued to fool around: "The Sea Harrier has the engine arranged in the middle. In this way, the space at the rear of the aircraft body is wasted, and... The nozzles are facing to both sides, which causes a loss of power. Now, with the main engine at the tail, the afterburner can be arranged. Only with strong engine power can the aircraft have high enough performance."

Whether it is the Sea Harrier or the Yak-38, there is no afterburner. The combustion chamber at the rear of the engine has nozzles extending to both sides, like a baby's legs spread out. If afterburner is provided, the nozzles will not be affected at all. Can't live.

Now, although this static test aircraft does not have an engine installed, its position has been reserved. You can clearly see the structure of the entire aircraft. The main engine at the back and the lift engine at the front are all so real.

Mr. Gu was carefully looking at the layout of the entire aircraft. From the nose, it looked like a MiG-25, the basis of a second-generation aircraft. However, above the air inlet, there were side wings extending back. Looking at the main wing, we can see that it can still take advantage of the latest aerodynamic achievements. Under the huge air inlet, Mr. Gu looked at it for a long time, longing for it.

 When their J-8 model was changed, they mainly changed the nose. They changed the air intake from the nose to the air intake from both sides. They have been tinkering with it for a long time. Here at Lao Maozi, various aerodynamic layouts are readily available.

 This is the gap!

“We have also built vertical take-off and landing aircraft before, but due to insufficient power of the engine, we can only use the engine to drive the fan to achieve vertical take-off and landing.” Mr. Gu said.

In the era of the J-6, it was too difficult to take off and land vertically. After all, at that time, the thrust-to-weight ratio of the aircraft did not exceed 1.

Thrust-to-weight ratio is the ratio of engine thrust to the weight of the aircraft. If this ratio exceeds 1, it means that the aircraft can climb vertically upwards by relying on its own power. If it is lower than 1, it will lose altitude.

 There is currently no aircraft in China that can achieve this. The thrust-to-weight ratio of the J-6 is 0.86, which is already extraordinary. Its emergency dispatch capability is very powerful because of its powerful engine.

But it is still difficult to lift the aircraft from a static state. The No. 4 aircraft operated by 601 at that time used the gas from the main engine to drive four large fans. Four large fans were hung under Mr. Liu’s belly. The big fan and its shape are definitely unique in the world.

 Why is it enough to just hang a fan?

This can be seen from the difference between a turbojet engine and a turbofan engine. The core engine of a turbofan engine is equivalent to a turbojet engine. An external duct is installed on the outside. The engine drives the fan and jointly provides power to the rear. thrust.

The engine blows air directly backwards, which is smaller than the kinetic energy of the engine driving the fan, and then the fan blowing air backwards. Therefore, the power is increased and the fuel consumption is also reduced.

 Hence, turbofan engines have begun to be used in large quantities. The disadvantages are large windward area and high resistance, but compared with the increased power, these disadvantages are acceptable.

When he heard Mr. Gu talking about this, Qin Tao suddenly thought of something. He looked at Alexander with a smile: "Dear Mr. Designer, have you ever considered that the lift engine in the front can be removed and used in the back? The engine is connected to a drive shaft and then drives a fan to provide power for take-off?"

During the Yak-38 period, the problem of jet engine flames burning the deck could not be solved, so the Kiev-class aircraft carrier could only put this aircraft ashore, which greatly reduced its actual combat capabilities. In the Yak-141 period, this problem still exists.

Although the rear **** turns downward, it will also burn the deck, but it is turned after all. The most important thing is the two upright engines in the front. The nozzles of the two engines are directly aimed at the deck, burning out Deck problems are mainly caused by them.

 Now, Qin Tao provides a solution: replace the lift engine with a fan!

On the surface, Qin Tao got the design inspiration from Mr. Gu, but in fact, of course, Qin Tao directly took over the fertilizer and electricity plans of later generations!

The Yankees will never admit that Feidian is related to the Yak-141, but this vertical takeoff and landing scheme is very similar. Of course, if the Yankees had chosen the X-32 demonstrator back then, it would have been the same as the Sea Harrier. It's the in-laws.

However, Qin Tao, a time traveler, has a broad vision and can directly tell the most suitable plan.

In an instant, Alexander opened his eyes wide. Yes, if you connect a drive shaft in front of the engine, output the power to the front, and get a fan, then you can prevent the two lift engines from burning the deck. Moreover, By eliminating the need for two lift engines, a lot of fuel can be saved, and the aircraft can gain a greater range.

Thinking of this, Alexander's tone was trembling: "Qin, your idea is very good!"

“I still have a lot of ideas, should we talk about them?”

Alexander nodded: "Everyone, you continue to watch the plane here. We can also watch the engine later. Now, I'm sorry." Qin Tao said to the others.

We have to get rid of the people from Siam. Anyway, they are here to see Jacques-141. As for Mr. Gu and the others, they have to accompany the people from Siam. Otherwise, there are only two people left, and it is easy to get involved.

 So, Qin Tao left with Zhao Ling, and on Lao Maozi's side were Nicholas and Alexander.

 The four people left the static test room and continued walking forward until they entered the tent set up on the apron.

 It is already the end of summer, but because the latitude here is relatively high in Laomaozi, there is already an autumn scene. The entire airport is covered with withered and yellow weeds, and even the unhardened runway is no longer visible, which is enough to show the loneliness here.

“This is our Yak-141 test prototype.” Alexander said: “We are still looking for the reason, so we can’t sell it as junk yet.”

“The fault occurred in the control system.” Qin Tao said it very directly.

“Yes, according to the description of the test pilot that day and the on-site video, it should be a problem with the flight control system. We are looking for it, but we have found nothing.” Alexander continued.

"Since it is a software failure, there is no point in keeping this test prototype." Qin Tao said: "What you need to do now is to build another prototype, repeat the actions before the crash, and find the true cause of the accident. The reason is, as long as you sell these junk, we are willing to pay one million rubles. With the money, you can continue to make prototypes."

Of course Qin Tao came here to buy rags. He couldn't spend more money. One million rubles to buy rags was already a great deal.

Of course, Qin Tao did not have rubles on hand. He only had light industrial products on hand. He gave the light industrial products to Nikolai, and Nikolai was responsible for realizing the cash and then paying. In this way, Nikolai could make a profit by bundling them together.

 So, of course Nikolai is on Qin Tao's side. Anyway, the navy is destined not to operate this kind of aircraft. They will have Su-27K carrier-based aircraft in the future.

In the Soviet era, a planned economy was implemented, and factories were only responsible for production. They did not need to worry about the coordination of materials, and there was no need to worry about products not being sold.

However, in the past few years, they have been carrying out reforms, and the factory has to consider profitability. Especially, if the country does not support the Yak-141 project, then the Yakovlev Design Bureau will have to raise funds by itself. .

They need to spend money to purchase parts from brother units, they need to pay workers to produce prototypes, and they need to burn money for test flights. Where does this money come from?

"Moscow is not optimistic. Although the Navy is willing to support the continuation of the Yak-141 project, our economic situation has not been good in recent years. Therefore, after the Yak-141 crash, many people are not optimistic about this project. It is estimated that I know how to dismount." Nicholas started to assist from the side.

More than ten years ago, when Lao Maozi sent troops to the Imperial Cemetery, he was still so high-spirited and thought that he was the world's superpower. However, since the 1980s, Lao Maozi has been struggling.

The price of oil keeps falling, so that if you sell the oil extracted by Lao Maozi, you will lose money, but it is impossible not to lose money. Once the oil industry stops operating, it will not be easy to restart in the future.

They don't have enough food to eat, so they have to buy food from Western Europe. They even have to use gold reserves because of insufficient foreign exchange reserves. Of course, the gap between the domestic privileged class and ordinary people is getting wider and wider.

(It’s very strange, Lao Maozi has the black soil of Ukraine, how come there is not enough food to eat? Take our current era as an example, Lao Maozi is a good food exporting country! Once the *** goes to war, Western Europe will not be able to get enough food from Ermao Bought food.)

The economy of the Red Empire is getting worse and worse, so the military industry will also be affected. Stepchildren like the Yakovlev Design Bureau have nothing to eat. If they want to continue the project, they You have to figure it out yourself.

“But even if we sell you this junk, it won’t be enough for us to build a new prototype!” Alexander said painfully.

 Qin Tao felt happy, this guy let go! I like to do business with top leaders and have direct decision-making power!

“This is a piece of junk after all, and it’s only worth so much money.” Qin Tao said, “If you have other pieces of junk here, then we might be able to give you more.”

 Other junk?

 Alexander suddenly became alert again: "What do you want?"

"Those design drawings of the Yak-141." Qin Tao said simply: "Anyway, your project is going to be discontinued. There is no use in keeping those scraps of paper. You might as well sell them as junk."

"No, no, I won't do that. This is simply betraying the Soviets!" Alexander said: "Those drawings do not belong to us, they belong to the Soviets!"

"But you have been abandoned by the Soviets!" Qin Tao knew that this kind of person has a firm belief in his heart, just like his father. However, as long as the other party's belief is broken, it will be easy to cooperate.

 It is not easy for Alexander to sell the design drawings of the Yak-141, because this is Alexander’s hard work for many years. Starting from the Yak-38, step by step to the present, it is decades of hard work!

 Now, asking him to sell these drawings would be like selling his soul.

He subconsciously refused, but Qin Tao's words went directly into his heart like a knife.

 That’s right, they have been abandoned!

Since the end of World War II and the death of the Iron Giant, the Yakovlev Design Bureau has been marginalized. Over the years, they have been like children without a mother, without enough food and clothing.

 (Haha, this is a metaphor, they can still eat and drink well.)

 During World War II, half of the aircraft in the Soviet sky were Yaks. What about now?

 What do they have now? Only the coaching function has been maintained slightly, and they have become a third-rate design bureau!

"Moscow has given up on you, then you have to show it to Moscow." Qin Tao continued: "Moscow has canceled this project and does not care about any technology on this aircraft. Their favorite is the Mi Gaoyang Design Bureau, I guess they are already making fourth-generation aircraft, right? Back then, your Yakovlev Design Bureau was a hundred times more powerful than Mikoyan Design Bureau. Now, you are planning to watch your own. The project will go bankrupt, or should we obtain a batch of funds and rely on our own efforts to make this aircraft a success?"

Qin Tao is the best at deceiving people. Now Nicholas and Zhao Ling can just be spectators.

 Qin Tao’s words struck a chord in people’s hearts.

 The faith in Alexander's heart is crumbling. Are you loyal to the Soviets? The Soviets have abandoned you! You have been treated unfairly, shouldn't you make some achievements to slap Moscow in the face?

"If you give us all the information, those rags are worth two million rubles, and your funds will be more abundant." Qin Tao said to Alexander: "Think about your glory and your dream."

"However, even two million rubles are not enough. If we want to make another prototype, we will need at least five million rubles!" Alexander gave up his principles again and again. At this time, there was only one voice in his heart: I need Money, I will continue to build prototypes, I will continue to test flights, I must let the Yak-141 mature, and I must let those in Moscow take a look!

"Five million rubles? That much?" Qin Tao frowned, and then thought of something: "It seems that we can only go and see what else you have left in tatters. By the way, are there any other items in your factory?" The same type of engine? The Tumansky Design Bureau should have built more than one such engine, right?"

Qin Tao said it easily. In fact, his heart was beating violently at this time.

The prototype that had been smashed and the technical data were also very important, but to him, the most important thing was the R-79 engine!

In this day and age, this engine is very extraordinary. A few simple data can illustrate it: the maximum afterburning thrust is about 152 kilonewtons, and the non-afterburning thrust is 88.2 kilonewtons. In this era, the M88 that the French are racking their brains on has an afterburner thrust of only about 80 kilonewtons, and the engine on the American F-15 engine has an afterburner thrust of only about 120 kilonewtons.

This product can actually reach the order of 150,000 N. Even domestic turbofans that have matured in the 21st century do not have this power output.

Generally speaking, if a turbofan engine wants to increase thrust, the simple way is to increase the bypass ratio, that is, increase the diameter of the front fan and blow more airflow backward. The same core engine can be matched with different outer bypasses. A variety of power outputs can be achieved. The engines on passenger planes that often produce two to three hundred kilonewtons rely on the large fan in the front.

  However, this R-79 is an engine with a small bypass ratio. After all, fighter jets cannot have a large bypass ratio. The windward area is too large, the resistance is too great, and the speed cannot be increased.

In an era when the third cousin of the Su-27 only had more than 120 kilonewtons, this engine produced a power output of 152 kilonewtons, which was absolutely incredible.

The design bureau that studied it is actually not very famous. The Tukmansky Design Bureau launched many products in the turbojet era, but it fell behind in the turbofan era. This engine is also among the last products of the Tukmansky Design Bureau. A swan song.

This kind of engine is specially designed for the Yak-141. It is a rare scene for two design bureaus that have been reduced to the edge to stay together for warmth.

Because this engine was so famous, there were many theories later. For example, the Yankees’ F-35 was said by many experts to use Yak-141 technology, especially the F-35 above. The -135 engine is also an improvement from the R-79 engine. I wonder what American engine designers will think after hearing this. It is obviously an improvement from the F-119 engine used in the F-22, but it is actually said to be Plagiarized from Lao Maozi.

The turbofan-15 successfully developed by China has also been labeled as a copycat of this engine. The reason is that in the 1990s, this engine was purchased from the Tumansky Design Bureau (which had been renamed Allied Aviation Complex at that time). related information.

I definitely bought it, but if I use it directly, it is absolutely impossible, because after the turbofan-15 was developed, its performance far exceeded that of the R-79, the thrust increased by 15%, and the weight was still the same. It has been reduced by 20%. This is not a product of the same era at all!

But for now, this engine is still awesome. As for the motherland, aviation engines are still at their weakest. Therefore, if you have the opportunity, it is still worth buying an R-79 for two million. .

As for buying information, the person in charge of the Tumansky Design Bureau is not as easy to talk to as Alexander in front of him. After all, the former has not yet reached a dead end. (In later generations, it seems that what we buy is just materials. Of course, the materials are very complete, including how the materials are smelted and so on.)

 Alexander faced a difficult choice.

If he wants to continue to develop the Yak-141, he has to build a prototype. It is no longer possible for Moscow to give him funding. They can only find a way on their own. If they give the other party what they need, then they can continue project.

 But these are their most precious things, and are they just handed over to the guests from the East?

His face turned red and white for a while, and his eyes were blurred. It was obvious that he was fighting with the gods.

"I don't know if you know that we are starting to build aircraft carriers in China. This kind of light aircraft carrier also needs vertical take-off and landing fighters. If your Yak-141 can be developed, even if the Soviet Navy does not use it, we will buy one. In batches, we will even deploy them to islands, and the overall purchase quantity in the future will exceed fifty or even reach a hundred."

The last straw that broke the camel's back was placed, and the already shaky faith in Alexander's heart suddenly collapsed.

"Okay, I'm willing to sell these rags to you." Alexander said this with difficulty.

No matter what, even if he makes a deal with the devil, he will continue the Yak-141 project!

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 (End of this chapter)