Rebirth of science and technology academic master

Chapter 296 Transport Aircraft Review (12)

Chapter 297 Transport Aircraft Review (1/2)

"Bad news! According to the news from my fellow villagers, the big devil has disappeared for a week!"

"Holy shit~~~Real or fake!? (Horrified)"

"Didn't you say that the Great Demon King has been very busy recently, busy with scientific research?"

"Uuuuu~~ Why is my life so miserable, but it happened that I met the big devil! (Crying loudly)"

"Holy shit, shit, shit, shit! Naihe, I'm fine, I can go all over the world just by saying shit!"

"I don't believe it! I don't believe it! Wuwuwu~~ (tears bursting from my face)!"

"With the protection of gods, there is no ambition!"

"There is still time, everyone prepare to say goodbye! (Wit)"

"I have already asked my parents to order a pig's head, and we will do it tomorrow!"

"This time the big devil is going to trick millions of candidates into crying again!"

"Looking forward to it!! The college entrance examination in the past two years has been so boring, there has been no disturbance at all."

"."

On May 29, a piece of news set off the Internet. Countless high school senior candidates this year were shivering, feeling that the scorching summer heat was not a sweltering heat, but a cold winter, chilling to the bones.

Candidates have opened up "Qin's Collection" one after another and gnawed at the math questions and comprehensive science questions, just hoping to get a few more points.

High school teachers also attach great importance to it and spend great efforts to study "Qin's Collection". In class, they analyze classic examples and analyze the logical thinking in it for students.

Of course, Qin Yuanqing didn't know all this. At this time, Qin Yuanqing and his core team were in a secret base. The security measures in this secret base were very high. Soldiers could be seen standing guard everywhere. Anyone entering or leaving must show their ID. In many places, fingerprint and face recognition are required to enter and exit.

"After a week of understanding, everyone should know it by heart. Today we officially started the acceptance review of the Y-30 strategic transport aircraft. Now the design team will report!" The person who presided over the meeting was a leader of the Air Force. The Air Force leader took a look at it. Qin Yuanqing said: "Academician Qin, please explain it to me!"

Qin Yuanqing looked at the strategic transport aircraft model placed on the table in front of him. The model was scaled at a ratio of 20:1.

After coughing, Qin Yuanqing drew everyone's attention to himself. He pointed at the aircraft model with his baton and said: "The Y-30 has a design length of 53.04 meters, a wingspan of 51.81 meters, a height of 16.79 meters, and a wing area of ​​353 square meters. The wheelbase is 10.27 meters, the front main wheelbase is 20.05 meters, the cargo hold size is 22.5×6.5×4.5 meters, the empty weight is 98.2 tons, the maximum take-off weight is 283.2 tons, and the load capacity is 100 tons. The power system uses 4 non-afterburning turbofan engines, with a maximum The thrust is 4×185.64kN, the maximum flight speed is Mach 0.678 or 830 kilometers per hour, the practical ceiling is 13,700 meters, the range is 11,600 kilometers, and the combat radius is 5,200 kilometers!"

Qin Yuanqing introduced the basic parameters, which he already knew very well. Compared with the initial technology, after optimization, the load capacity and power have increased a lot.

This time, the superior department attached great importance to the strategic transport aircraft. A few days after Qin Yuanqing submitted the acceptance application report, the superior department organized a large group of experts, many of whom were involved in the design and manufacture of the Y-20. China is in the field of transport aircraft. After so many years of exploration, we have also cultivated a team with rich experience and technical level.

Entering the review process, everything is closed and confidentiality is very high. Everyone has to sign a confidentiality agreement, and even if they understand the design information, confidentiality department personnel will follow them throughout the process. No one is allowed to take or leak the information outside the review process. After it's over, no one is allowed to say anything about half of Y-30 to anyone else.

It took a full week just to understand the design information, and it only officially entered the review stage today.

The formal review stage will last for a week and will conduct a comprehensive evaluation of materials, engines, fuselage structures, carrier design, avionics systems, etc. Only after passing the design acceptance will the prototype manufacturing stage be entered.

After Qin Yuanqing's introduction, the special review of aero-engines began. This is also a focus of the review. The power of aero-engines can support the take-off and range of transport aircraft. Like fighter aircraft, aero-engines are also the heart of strategic transport aircraft.

If the aircraft engine does not meet the requirements, then it will be useless no matter how well the fuselage is designed, and it will be useless no matter how good the avionics system is.

The Aero Engine Research Institute has developed three engines, namely the Everest engine, the Ge Feng engine, and the heavily armed helicopter engine launched last year, and has been hailed as the number one aero engine design unit in the country.

In this regard, there is no need for Qin Yuanqing to come forward to answer in person. Naturally, there are professional core backbones to answer one by one.

"Academician Qin, congratulations on developing another excellent engine. It is worthy of being the first in my country's aero-engine development capabilities. If the Y-20 is equipped with this aero-engine, its performance will be improved a lot." Academician Tang said sincerely: "The entire engine does not look like a newly developed engine at all, but a very mature aero engine. Your institute's capabilities are indeed much higher than those of other units!"

Qin Yuanqing was noncommittal. This aircraft engine cannot be installed on the Y-20 because of the different size. This engine is one size larger than the D-30 engine used in the Y-20. If the Y-20 is to be equipped with this engine, The body design needs to be significantly adjusted.

The performance of the D-30 engine is mediocre, with a maximum thrust of 125kN after thrust afterburner. Moreover, the life of the engine is also very different, only 1/3 of the life of his engine.

"I think this aircraft is too risky. It is similar in size to the C-17 Globemaster, but its load capacity is much higher. I think this is too risky. We are still exploring strategic transport aircraft. We can be conservative. For example, the Y-20 has done a very good job on this point." Zhao Shulu from the Y-20 design team said to Qin Yuanqing after the engine review.

Qin Yuanqing glanced at Zhao Shulu and said calmly: "It's your problem that you don't have the ability. It doesn't mean that our team doesn't have the ability! Scientific research must be pragmatic, not adventurous or conservative! If everyone were like you Thinking, what kind of scientific research is needed?"

When Zhao Shulu heard Qin Yuanqing's criticism, his face turned red and he retorted: "Even the United States cannot make such an advanced transport aircraft. Why do you think there is nothing wrong with your design?"

"The American F-119 engine also lags behind our Everest engine. Now it turns out that our Everest engine is reliable and advanced! Without this determination to dare to be the first, I think you are not suitable to be at the forefront. The position is engaged in this work." Qin Yuanqing was very calm.

If a question is really asked, Qin Yuanqing will answer it, but Qin Yuanqing will never show any mercy to such questions that are not based on science.

What's wrong! ?

If the United States can't do it, China can't do it?

How can this be true!

"If you have any questions, wait until the special review to raise them instead of patting your head and talking about your feelings!" Qin Yuanqing stopped paying attention to Zhao Shulu.

Zhao Shulu's face turned red and green for a while.

But there was no way to refute it. In terms of status, Qin Yuanqing crushed him. From an academic point of view, he couldn't compare with Qin Yuanqing. Even in his field, Qin Yuanqing was a big boss, surpassing the level of chief engineer.

Everyone else looked at Zhao Shulu with pitiful eyes. This was not the way to find problems. They didn't see that some experts had questioned the power value of aircraft engines. People under Qin Yuanqing dared to criticize the other party directly. You raised questions. Yes, but the evidence must be provided. If there is no basis for questioning, then there should be no review.

The Air Force leader and Qin Yuanqing left the conference room side by side and came to the cafeteria. The two sat together. The Air Force leader said: "Academician Qin, has this transport aircraft been improved into a 400-ton transport aircraft like the C-5 Galaxy transport aircraft or the An-124? "

"Leader, this transport aircraft has been optimized to the extreme. It can be converted into an early warning aircraft, a tanker, or a bomber in the future. It is not recommended to basically build a 400-ton class again. And from the current point of view, our country has not yet We need this kind of 400-ton and 600-ton strategic transport aircraft." Qin Yuanqing pondered for a moment and said.

"That's right." The leader of the Air Force paused and said, "You are right. This transport aircraft best meets the needs of the Air Force now and forms a high-low configuration with the Y-20."

The Y-20 transport aircraft has a load capacity of 60 tons. It is China's strategic transport aircraft after the Y-9 transport aircraft. However, the shortcomings of the Y-20 are also obvious, that is, the range is only more than 4,000 kilometers and the engine life is short.

However, this transport aircraft is much more advanced than the Y-20. It has a long range, a large load capacity, and a long engine life. This is undoubtedly the great artifact that the Air Force dreams of. If China wants to buy such a transport aircraft from the United States, the United States will not buy it. Sell.

Therefore, the research and development of the Y-20 was based on the Il-76 transport aircraft. The Y-20 did not miss the shortcomings of the Il-76. Of course, there are many advantages, at least the performance exceeds that of the IL-76.

"Academician Qin, you are really a lucky star of our Air Force, you have solved many difficulties for us. The J20B is in mass production and is scheduled to be installed in 70 families in the next five years. Let me tell you the good news first. The J20B will be put into service in batches. Accept the people's review in this military parade." The Air Force leader lowered his voice and said.

Qin Yuanqing's heart moved. He was deeply impressed by the upcoming military parade, because it was China's first military parade to commemorate the victory of World War II. It was also very special for Qin Yuanqing, because in his previous life, his mother was diagnosed with terminal cancer at that time. Hospital, he accompanied his parents to watch the military parade in the hospital.

He did not expect that J20B would appear at this military parade. This was not the case in the previous life. The last J20 appeared in the military parade for the first time during the 90th anniversary military parade. At that time, a formation of five aircraft flew over the People's Square, which caused a huge sensation.

However, considering that the J20B is a mature fourth-generation aircraft, pilots who have been trained by now should have basically understood the various functions of the J20B. It is not impossible to conduct a military parade. They also performed at the Zhuhai Air Show last year.