Reborn Tech Scholar

Chapter 296 Transport Aircraft Review (12)

Chapter 297 Transport Aircraft Review (1/2)

"Bad news! According to the news from my hometown, the Great Demon King has disappeared for a week!"

"Fuck~~~Really!? (panic)"

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

"Woo~~ Why is my life so hard, and I just met the Great Demon King! (Crying loudly)"

"Fuck, shit, shit. Damn! But I'm fine, I can go all over the world with a word of shit!"

"I don't believe it! I don't believe it! Woooooo~~ (tears streaming down my face)!"

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

"There is still time, everyone prepares to say goodbye! (wit)"

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

"This time the Great Demon King is going to make millions of candidates cry again!"

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

"."

On May 5, a piece of news blew up the Internet. Countless senior high school candidates this year were shivering, feeling that the scorching summer heat was not the scorching heat, but the cold winter, which was so cold to the bone.

Candidates flipped through the "Qin's Treasure Book" one after another, gnawed at the math questions and comprehensive questions, hoping to get a few more points in the exam.

The high school teachers also attached great importance to it, and put a lot of effort into the study of "Qin's Treasure Book". In the class, they specially analyzed the classic examples and analyzed the logical thinking in it for the students.

Of course, Qin Yuanqing didn't know all this. At this time, Qin Yuanqing was in a secret base with the core backbone. The security measures in this secret base were very high. Soldiers could be seen standing guard everywhere. Many places have to pass fingerprint and face recognition to enter and exit.

"After a week of understanding, everyone should know it in their hearts. Today we officially start the acceptance review of the Y-30 strategic transport aircraft, and now the design team will report!" A leader of the Air Force presided over the meeting. The leader of the Air Force took a look Qin Yuanqing said, "Academician Qin, please explain it to me!"

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

After coughing, Qin Yuanqing drew everyone's attention to himself, pointed his baton at the plane model and said, "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 compartment 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 adopts 4 non-afterburning turbofan engines, the largest The thrust is 4×185.64kN, the maximum flight speed is Mach 0.678 or 830 km/h, the service ceiling is 13700 meters, the flight range is 11600 kilometers, and the combat radius is 5200 kilometers!"

Qin Yuanqing introduced the basic parameters. He already knows these parameters well. Compared with the initial technology, after optimization, the load capacity and power have been improved a lot.

This time, the higher-level department attached great importance to the strategic transport aircraft. Within a few days after Qin Yuanqing issued the acceptance application report, the higher-level department organized a huge team of experts, many of whom were still involved in the design and manufacture of the Y-20. After so many years of exploration, we have also cultivated a team with rich experience and technical level.

Entering the review process, it is all closed, and the confidentiality is very high. Everyone has to sign a non-disclosure agreement, and then even if they understand the design materials, they will be followed by the confidentiality department staff throughout the process. No one is allowed to take out or leak the data. After the end, it is not allowed to say anything about half of Y-30 to the outside world.

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

In the formal review stage, a one-week review will be carried out, and a comprehensive evaluation will be carried out on materials, engines, fuselage structure, carrier design, avionics system, etc. Only after passing the design acceptance will it enter the stage of manufacturing prototypes.

After Qin Yuanqing's introduction, the special review of aero-engines will begin, which is also a key point of the review. The power of aero-engines can support the take-off and voyage of transport aircraft. Just like fighter jets, aero-engines are also the heart of strategic transport aircraft.

If the aero engine does not meet the requirements, then no matter how well the fuselage is designed, it is useless no matter how well the avionics system is done.

The Aero Engine Research Institute has been hailed as the number one aero engine design unit in China after the Everest engine, the Gefeng engine and the heavy armed helicopter engine developed last year.

There is no need for Qin Yuanqing to answer this question in person. Naturally, there are professional core backbones to answer one by one.

"Academician Qin, congratulations to you for creating another excellent engine. It is worthy of being the number one in my country's aero-engine development capabilities. If Y-20 is equipped with this aero-engine, its performance will be improved a lot." Academician Tang said sincerely: "The whole engine is not like a newly developed one at all, but a very mature aero engine. The capability of your institute is indeed much higher than that of other units!"

Qin Yuanqing was noncommittal. This aero engine cannot be installed on the Y-20, because the size is different. This engine is one size larger than the D-20 engine used by the Y-30. The Y-20 needs to be equipped with this engine. Major adjustments to the fuselage design are required.

The performance of the D-30 engine is average, with a maximum thrust of 125kN after the thrust is added, and the life of the engine is also quite different, only 1/3 of the life of his engine.

"I think this aircraft is too risky. The size is similar to C-17 'Globemaster', but the load capacity has been greatly increased. 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 good job.” 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 that ability, it doesn't mean that our team doesn't have this ability! Scientific research is to seek truth from facts, not to pursue adventure or be conservative! If everyone is like you Thinking, what kind of scientific research is needed!"

Zhao Shulu blushed when he heard Qin Yuanqing's criticism, and retorted: "Even the United States can't make such an advanced transport aircraft, so why do you think your design is fine?"

"The F-119 engine of the United States is also a little behind our Everest engine. Now it has been proved that our Everest engine is reliable and advanced! Without this kind of determination to be the first, I don't think you are suitable to be at the forefront position to do this work." Qin Yuanqing was very calm.

If you really ask a question, then Qin Yuanqing will answer it, but Qin Yuanqing will never show any sympathy for asking 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 there be such a reason!
"If you have any questions, you can bring them up when you are judging the special project, instead of patting your head and commenting on your feelings!" Qin Yuanqing stopped paying attention to Zhao Shulu.

Zhao Shulu blushed for a while, then turned green for a while.

However, there was no way to refute him. In terms of status, Qin Yuanqing crushed him, and in terms of academic convenience, he could not be compared with Qin Yuanqing. Even in his field, Qin Yuanqing was at the level of a master, surpassing the level of a master teacher.

Everyone else looked at Zhao Shulu with pitiful eyes. They didn't look for problems like this. They didn't see that some experts questioned the power value of the aero engine just now. The people under Qin Yuanqing dare to criticize the other party directly. You questioned it. Yes, but you have to come up with a basis. If there is no basis for questioning this question, then do you need to review it.

The air force leader and Qin Yuanqing left the meeting room side by side and came to the cafeteria. They sat together, and the air force leader said, "Academician Qin, has this transport aircraft been improved into a 5-ton C-124 Galaxy transport aircraft or An-400? "

"Leader, this transport aircraft has been optimized to the extreme. It can be converted into an early warning aircraft, tanker, and bomber in the future. It is not recommended to build a 400-ton class on a basic basis. And from the current point of view, our country has not yet This kind of 400-ton and 600-ton strategic transport aircraft is needed." Qin Yuanqing said after a while.

"That's it." The air force leader paused for a moment: "You are right, this transport aircraft is now the most suitable for the air force's needs, and it forms a high-low match with the Y-20."

The load capacity of the Y-20 transport aircraft is 60 tons. It belongs to 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 4000 kilometers, and the engine life is also short.

However, this transport aircraft is a bit more advanced than the Y-20. It has a long range, a large load capacity, and a long engine life. Sell.

所以Y—20研发是在伊尔—76运输机基础上摸索出来的，伊尔—76具备的缺点Y—20也是一个不落。当然优点也不少，至少性能超过了伊尔—76。

"Academician Qin, speaking of it, you are really a lucky star of our Air Force, and you have solved many difficulties for us. The mass production and service of J20B is planned to be installed in 70 families in the next five years. Let me tell you the good news first, J20B will In this military parade, I will be inspected by the people." The Air Force leader lowered his voice and said.

Qin Yuanqing's heart moved. He was deeply impressed by the upcoming military parade, because this was the first military parade in China to commemorate the victory of World War II. In the hospital, he accompanied his parents to watch the military parade in the hospital.

He did not expect that J20B would appear in this military parade, which was not the case in his previous life.The last generation of J20 was the first time it appeared on the occasion of the 90th anniversary military parade. At that time, five formations flew over the People's Square, which caused a huge sensation.

However, considering that the J20B is a mature fourth-generation aircraft, the pilots should have basically understood the various performances of the J20B after training.

(End of this chapter)