Everyone chatted in the assembly workshop of J-20 for a long time. After dinner, they continued to look at the production line of J-10.

"We have gained experience from the J-31a production line. Now the J-11 is also used to produce the J-11. This method greatly improves our efficiency. The current monthly output of advanced J-11 fighter jets can reach two." Mr. Song brought Wu Shengli and Qin Tao to visit the production line. Although the navy does not want these fighter jets, the navy is also qualified to see them.

"There are also single-engine medium-sized aircraft, but the Air Force is still very fond of J-10 and has not put all the orders on J-35?" Wu Shengli said with a smile.

J-35 is the Air Force model of the fourth-generation stealth aircraft developed by Mingzhou Group. The Air Force also liked it and ordered a batch, but it did not completely order it. After the J-10 was successfully developed, the Air Force was also ordering the J-10.

The two fighter jets have similar sizes, and they use single-shot big pushes. The J-35 has a completely advantage in performance. So why doesn’t the Air Force fully purchase the J-35?

"Because J-35 is an export-type fighter." Qin Tao answered this question: "There is no secret to this fighter. Although the country now uses this fighter very closely, there will be no secret to this fighter in five or ten years. And J-10 is our own fighter, and it is still a duck-style layout. The outside world is not familiar with it. Of course, the Air Force cannot put all the eggs in one basket."

When there was no J-35, the Air Force purchased large quantities of counterfeit products of Su-7. At that time, some people said that there was no need to develop J-1 and free up R&D funds to buy a few more Su-7s. This statement was rejected by the wise Mr. Lin and others. No matter how good the Su-7 is, it is still someone else's. J-1 is his own child, and he must not let his child die prematurely.

The J-10 was born, and the outside world didn't know how good its maneuverability was. Although it was a single-engine fighter, when it was engaged in confrontation in China, it often beat the Su-7 all over the ground for teeth.

Now, of course, the Air Force will not give up on J-10.

"Yes, Mr. Qin is right. We made the J-10 by ourselves, and the technology is kept confidential. The outside world does not know it, so the Air Force still needs to purchase a batch of low-end fighters. Even if it does not perform air-optimal missions in the future, it is good to be a bomb truck." Old Song said with a smile.

The positioning of J-10 is enough to aim at the F-16. The Air Force needs advanced stealth aircraft and non-stealth aircraft that can carry a large number of weapons.

"Since it's a bomb truck, the J-10 must be upgraded. Mr. Song, you quickly developed the J-20 after the J-10 is finalized. Have you never considered the upgrade of the J-10?" Qin Tao asked.

"J-10 upgrade?"

Due to the existence of J-35, the status of J-10 is a bit embarrassing. Everyone thinks that this aircraft is a transitional and there is no need to continue to improve it, but Qin Tao put forward a different view.

J-10 still needs to be changed!

Looking at the six sticks on the rectangular air intake of J-1, Qin Tao said, "For example, since the air is no longer dominated by air excellence, then the adjustable air intake of this negative isolation layer is a burden. With the advanced Di air intake, we can completely transplant it, save weight, improve efficiency, and reduce the ability to achieve high-altitude and high-speed speed slightly."

In the era when J-10 was just developed, the Air Force lacked advanced combat aircraft, which put forward many requirements for J-10, with high maneuverability and high-altitude and high-speed capabilities not allowed!

If you want high-altitude and high speed, then the air intake has some considerations.

Although the fixed Pito air intake of the f-16 is nominally able to fly to the maximum Mach, after Mach 1.6, it has to sway slowly and slowly. The acceleration process is extremely slow, because at high speed, the air intake creates huge resistance. The higher the speed, the smaller the air intake, and this requires an adjustable air intake.

The J-10 uses a complex adjustment baffle air intake, and it is necessary to perform air-optimization tasks, but in the future, if you are a bomb truck, you can use a bulge air intake.

Old Song nodded.

Although Mr. Qin is a shipbuilder, he has also put forward many useful insights in the aviation industry. Not to mention anything else, just look at the fourth-generation stealth aircraft being mass-produced in China and you can know how powerful Mr. Qin is. Mr. Qin’s suggestion makes sense.

The J-20 can use a bulge air inlet, and of course it can also be transplanted to the J-20.

"As for the engine, after our turbofan ten is mature, we can also replace it with turbofan ten. The third uncle is just a temporary replacement."

"There are also avionics equipment. Our domestic electronic technology is developing very rapidly and is outdated in five years. It can be replaced by more advanced avionics. In the future, our active phased array radar will be made into a bargain price, and it can also be replaced by active phased array radar."

"Mr. Qin, as you said, our J-10 will undergo a major change." Mr. Song said: "We have to wait until the J-20 flies for the first time before we can gather enough technical strength to do it."

Wu Shengli was a little dissatisfied with it. This plane was a transition, and you really treated it as a treasure, with various improvements.

Of course, Wu Shengli didn’t know how much Qin Tao, as a time traveler, attached great importance to J-1. For the motherland’s aviation industry, this aircraft has a significant role in inheriting the past and starting the future.

After staying in the Tianfu Kingdom for a day, Qin Tao saw the progress of J-20 and gave another guidance to the country. He was very satisfied. That night, Qin Tao and his father-in-law began to discuss tomorrow's plan.

"Since we are here, there is no need to rush back. We can go to the plateau to see how our railways and oil pipelines are being built." Qin Tao said.

Under Qin Tao's promotion, the oil pipeline from Gwadar Port to the domestic country was valued. After all, railway transportation is not as fast as oil pipelines. Especially when the Qinghai-Tibet Railway is only built to l, from l to border, oil pipelines must be built, otherwise it will have to be transported by car, which is even less efficient. This plan has been several months since the last decision was made. How has the project been constructed?

This chapter is not over, please click on the next page to continue reading! Qin Tao is looking forward to it.

"It's winter, it's cold and cold there, are you sure you want to go?" Wu Shengli asked.

"Our construction personnel are not afraid of the cold weather, can I be afraid?" Qin Tao said: "By the way, Dad, you are old and this matter has nothing to do with the Navy, so don't go."

"You boy, are you looking down on me?" Wu Shengli gave him a blank look: "If you can go, I can go. Let's take the railway construction car and go along the railway!"

After the railway is repaired, it cannot be put into operation immediately. It must be run in for a period of time, which requires special vehicles to run back and forth on it.

However, we cannot take the railway immediately. After all, the Qinghai-Tibet Railway is not connected to Chengdu, and it starts from Xining, Qinghai. Qin Tao and Wu Shengli can only take the Black Eagle to Golmud first, and then go from Golmud to l.

"At present, our domestic ZTE development is smooth, especially Tianjiao Aviation, which has made rapid progress in the development of helicopter engines, ensuring the development of helicopters." On Black Hawk, Wu Shengli and Qin Tao continued to chat: "It is expected that when our aircraft carrier is in service, ZTE will be able to board the ship."

Qin Tao nodded: "At that time, the hangar on our destroyer will be completely designed according to the 20th century, and we will not need other helicopters."

The 9th is too small and the card-7 is too high. These are not suitable. When the domestic destroyer was designed, the hangar was always a headache. When the 20th out, I finally could breathe a sigh of relief. The helicopter of Pijin Oil was available!

The Army, Air Force, and Navy will use this kind of helicopter as the main force, and even even amphibious assault ships will carry a batch of 20.

"However, in the helicopter field, we are still behind. The United States already has ospreys, so we still have to work hard."

The motherland has spent decades to catch up with the world's advanced level and has reached the world's first-class level in some fields, but in other fields, it is still flawed. Helicopters have been ignored for a long time because they don't seem to be very important.

The Zhi Twenty, which has been developed now, has just reached the level of the Black Hawk, and the US military has long planned to eliminate the Black Hawk and replace it with more advanced tilt rotor aircraft.

"Yes, we still have to work hard, but now we have to use good steel on the blade and can't be so anxious. In the future, we will also have advanced tilt rotor aircraft." Wu Shengli said.

Outside the porthole, there were already rolling plateaus. The scene looked very beautiful and the country was so beautiful!

The helicopter landed in Golmud, and everyone came to the platform with great enthusiasm.

"Welcome to all leaders, we have prepared advanced imported trains for the leaders." Pan Renbao, the station's head, said excitedly. His bronze face means that he has been working on the plateau for many years.

"Imported train?" Qin Tao frowned: "Do we don't have domestic trains?"

"Mr. Qin, our domestic trains are of poor quality and cannot be compared with imported trains. For your safety, we specially..."

"No need to be deliberately done, I like domestic products. If there are domestic products, I won't be imported." Qin Tao said: "Please replace the front of the car with us."

"Yes!" An engineer answered excitedly behind Pan Renbao, then ran out and fell down without a two-step run.

"Old Zhang, you have just arrived at the plateau and can't exercise vigorously. You don't even understand this? Hurry up, take a few breaths of oxygen." Pan Renbao said, while he called the person next to him to get the oxygen tank.

Zhang Guangming took a few breaths of oxygen and then recovered: "Old Pan, can I be unhappy? Your railway department is not as good as imported ones, so we don't believe this. The performance of the snow-water Shenzhou internal combustion engine specially developed by our Qishuyan Factory for the plateau is definitely not worse than that of the United States!"

There is a situation here! Qin Tao's face slowly became serious: "Mr. Zhang, tell us what's going on?"

The front of the car began to change outside, and Zhang Guangming, an engineer from Qishuyan Factory, introduced it to everyone at the station.

"Mr. Qin, our Qishuyan Factory is an old railway locomotive production factory. More than ten years ago, the railway department continued to speed up, requiring passenger buses to reach 140 kilometers per hour, trains to reach 90 kilometers per hour, and maximum axle weight must also reach tons. At that time, our Qishuyan Factory developed a new high-power internal combustion locomotive, named Dongfeng 8b. This locomotive can pull 5,000 tons of cargo and drive to a speed of 90 kilometers per hour, and there is still surplus of power. After mass production, it became the most advanced internal combustion locomotive in China."

"Old Zhang, a hero doesn't mention the courage back then. Why do you always mention these things? Your snowy Shenzhou is just a model improved based on Dongfeng 8b. This kind of motorcycle has not been specially improved for the plateau, and it cannot meet the needs of our plateau railways at all." Pan Renbao said from the side.

After saying that, he looked at Qin Tao: "Mr. Qin, you probably don't know the technical problems here. I'll introduce them to you."

Zhang Guangming said a word, but his body couldn't bear it anymore and continued to inhale oxygen. Pan Renbao pointed to the map hanging on the wall to Qin Tao and others: "Our phase II project of Qinghai-Tibet Railway crosses Tanggula Mountain from Golmud through Kunlun Mountain Pass and enters Z territory, and finally arrives in City L. The total length of the railway is 1,140 kilometers. The areas along the line are all high-altitude areas. The railway with an average altitude of more than 4,000 meters is 960 kilometers. Especially the Tanggula Mountain Pass, the highest altitude is 071 kilometers."

"It's not just that the height is too high, but the drop in the northern slope of Kunlun Mountain and Yangbajing Canyon along the route has reached one thousand meters! The maximum slope of the line has reached 20%...."

Qin Tao nodded: "I know what you mean. Because of the high altitude, the power of our railway locomotives has dropped severely. If you climb the hill, you are afraid of insufficient power."

This chapter is not finished yet, please click on the next page to continue reading the exciting content later! "That's right. Based on the existing first-phase railway section test, the diesel engine power will be reduced by 25% when the diesel locomotive is at an altitude of 3,000 meters. In this way, if you pass through the Tanggula Mountain Pass, the power will be lost by 40% and the front of the car may not be able to provide enough traction, causing serious safety hazards to our trains." Pan Renbao continued: "Even if our diesel engine uses superchargers, the efficiency is already very low. If we want to go to the second-phase railway, we must use a special plateau supercharger. Therefore, the railway department decided to import advanced diesel locomotives from the United States."

Wu Shengli frowned from the side. It looked normal on the surface, but based on his years of experience, there was something wrong with it!

"After hearing about our lack of plateau locomotives, General Electric and Eandi from the United States came to bid. After comparing, the railway department decided to choose General Electric's c38ache plateau diesel locomotive. Now the front of the car is named NJ, where n represents internal combustion engine and j represents AC transmission. This is a locomotive developed by General Electric for our plateau railway."

Qin Tao smiled: "The choice of the railway department is really interesting. I found a country with the least developed railway technology to build a front for us."

Is the United States' technology advanced? Indeed, some technologies cannot compare with them, but some are not very good, and railways are one of them.

Although the total mileage of American railways ranks first in the world, they are all old railways built before. Among the total mileage of more than 200,000 kilometers, only more than 1,000 kilometers are electrified railways, and the rest are internal combustion locomotive railways, and more than 90% are sleeper structures. After all, they were built decades ago or even hundreds of years ago. These old railways have caused their operating efficiency to be very low and safety problems frequently occur. For example, from 1990 to 1 year, the average derailment is 170 times a year, an average of 4.7 times a day.

What other safety can such a railway be said? Can the internal combustion locomotives produced by the state become advanced?

After the opening of the Qinghai-Tibet Highway, 18 NJ-type internal combustion locomotives were invested. As a result, during the previous 1.5 million kilometers of operation, 16 major mass problems occurred: the diesel engine radiator leaked, the rock sweeper loosely and fell off the locomotive walking part, the friction plate of the axle box guide frame fell off, the locomotive air compressor cooler failure, etc.

The myth made in the United States was shattered. The railway department did not dare to continue to use this imported diesel locomotive alone, so it could only arrange trains such as the Snowy World Shenzhou to jointly traction with this train. After that, the country also began to continue research and development to create more advanced domestic diesel locomotives.

"Mr. Qin, the United States' railways are the most developed. Their total railway mileage is the world's largest. At the same time, they also have rich experience in the research and development of internal combustion locomotives."

The motherland's railways also developed very quickly, but the motherland's railways soon entered the era of electrification. As long as the power grid is able to be laid, electrified transformation will be achieved as soon as possible. After all, the manufacturing of motors is much easier than the manufacturing of internal combustion engines.

Therefore, in terms of internal combustion engines, the country is really not as good as the United States.

"But do they have plateaus with an altitude of several kilometers?"

The United States has a good geographical location. It is alone on a continent. If they want to participate in the World War, they don’t want to participate, and no one can reach their territory. At the same time, the terrain is also very good: there is a small amount of mountainous land in the west, a plateau in the middle, and a plain in the east. Moreover, the altitude of the plateau is not particularly high, with an average altitude of only 760 meters.

Let’s look at the East. Although it has a land area of ​​9.6 million square kilometers, only the east is suitable for farming and living, while the west is only suitable for short-term tourism and not for normal human life.

"Although they do not have particularly high altitudes, they have rich experience." Pan Renbao continued: "Mr. Qin, you and Leader Wu are the most important figures in the country. There must be no accidents. You should follow our arrangements."

"Of course not, I believe in domestic motorcycles more."

Zhang Guangming's eyes were full of gratitude: "Mr. Qin, thank you for your trust. We are confident that we can complete this task. There will be no problem with the front of our car!"

"Mr. Qin, why don't we use double fronts? Also hang the front of the American front?" Pan Renbao looked at this and knew that it could not stop Qin Tao from using domestic products, so he could only provide a double insurance plan.

"No." Qin Tao shook his head.

"It's better to hang up." Zhang Guangming said: "This can also test the traction ability of our motorcycles."

Wu Shengli also said from the side: "Yes, Taozi, for a long time, we all need to transport oil from the Middle East through trains. Our front of the car needs to have enough traction."

Qin Tao smiled, yes, if you go to L, you need to climb a hill, but if we transport oil, it will go downhill! It is transported from the plateau, and the traction force should have a counter-effect as the braking force is almost the same.

However, since my father-in-law said so, I can't continue to persevere.

"Okay." Qin Tao nodded: "Then let's go together with the two fronts of the car."

"Mr. Qin, I'll go with you." Zhang Guangming put down the oxygen tank: "I can guarantee that there will be no problem with the front of our car!"
To be continued...