my scientific age

Chapter 243 Mr. Xie's Teachings!
On the podium, Professor Von Kamen, wearing a suit, became the focus of professors and students in all schools in the auditorium. His manners were polite and elegant, his face was peaceful, and there was a unique blend of German classical and top scholars.

Following Feng Kamen's brief self-introduction, a wave of applause broke out in an instant, and everyone present extended courtesy to this aerodynamic master who came from afar, just like the scene when Tagore visited Tsinghua University.

"thank you all."

Standing in front of the microphone, Feng Kamen stared at the teachers and students of Tsinghua University who were applauding with unprecedented enthusiasm, and said slowly, "This is my second trip to China. It has been eight years since the last time I came to Tsinghua University. , this country has gone through a lot of hardship, and I believe these hardships have taught everyone here to understand the importance of aerospace engineering."

The remarks spread all over the auditorium and the young students did not have any deep feelings about them. Only Mei Yiqi and other Tsinghua professors understood the meaning of the remarks painfully.

In the sky that belongs to China, there are no fighter planes that belong to China flying. Japanese planes fly recklessly as if they are unmanned, launching bombings on the Chinese soldiers on the frontline battlefield again and again, and the war has been defeated again and again.

The bomb from the top of the head is the death god, which cannot be avoided and cannot be attacked.

If the Japanese cannons can still be resisted, then the fighter planes flying in the sky from three-dimensional space are really unstoppable.

After September [-], almost everyone understood the power of the little devil's plane, and countless troops talked about it, and they were extremely afraid of the Japanese aircraft.

"The development level of aeronautical engineering determines the performance level of the aircraft, and the performance level of the aircraft will directly affect the combat effectiveness. A fighter jet with a flying speed of up to 400 kilometers per hour can easily shoot down three planes with a speed of 3 kilometers per hour. This is the aircraft. The gap in performance levels.”

"Now, with the rapid development of the aviation industry, the rapid development of aerodynamics and wind tunnels, the aircraft design concept has entered a new era of all-metal monoplanes from the era of biplanes, achieving higher speed, higher maneuverability and combat effectiveness, It's a good thing, but it's a disaster for the country of China."

"As far as I know, the mainstream aircraft model equipped by the Chinese Air Force is the Hawker-3 biplane fighter. This kind of biplane fighter with excellent performance in the early 30s has fallen far behind the entire rapid development of the aviation era. Although Tsinghua University Having already recognized the advantages of the monoplane concept, Professor Zhuang Qianding, Professor Hua Dunde, and Professor Yin Wenyou have designed a new monoplane trainer, but this is far from enough."

"China needs an excellent fighter with an all-metal monoplane layout, not a trainer."

"From the aerodynamic point of view, the aerodynamic layout of biplanes has the defects of complex structure and high aerodynamic resistance that cannot be solved. The flight speed limit is about 350 kilometers per hour. If better metal materials are used, it can reach about 370 kilometers, and the whole Metal single-wing aerodynamic layout, upper single-wing, middle single-wing, lower single-wing, the aerodynamic resistance of the three types of layout designs is significantly smaller than that of the double-wing layout, and the lift is higher, there is a serious generation difference between the two."

"Only from theoretical calculations, the combat effectiveness of an all-metal monoplane is equivalent to that of three biplanes with the best flight performance. If it enters actual combat and introduces the pilot's flying skills as a variable factor, the gap between the two aerodynamic layout aircraft will reach 3:5, or even 1:8, this data is not exaggerated, the Chinese Air Force is at an absolute disadvantage in front of the Japanese military aviation."

"I believe all the gentlemen and ladies here have understood the gap between biplanes and monoplanes. Looking back, let's talk about how to develop aeronautical engineering."

"There are two core factors that determine the development of aeronautical engineering, theory and manufacturing. Here we will only talk about theory for the time being. Tsinghua University once shouted the slogan of saving the nation by aviation. Then, what is the basis of aviation theory?"

"The answer is aerodynamics."

"Aerodynamics is an important subject with strong comprehensiveness. It is developed on the basis of fluid mechanics and is divided into theoretical research and experimental research."

"Theoretical research generally relies on the following principles: mass conservation in kinematics, Newton's second law in dynamics, energy conservation in lift energy conversion and transfer, and the core equation is the Navier-Stokes equation of fluid mechanics. Differential equations and calculus formulas with mathematics."

"The most important equipment for experimental research is the wind tunnel."

"In terms of theoretical research on aerodynamics, Tsinghua University is the first school to start, and the overall level is still insufficient, but it is worth affirming that in terms of experimental research, Tsinghua has independently designed and manufactured a 5-foot-diameter wind tunnel, and Dr. Professor of Dynamics is helping Tsinghua University to build a new large-scale wind tunnel, which is the most advanced and largest wind tunnel in the Far East. By then, the large-scale wind tunnel will provide a solid hardware foundation for aerodynamic theoretical research and new aircraft research and development. "

"The sky is extremely important. If a country wants to be strong, it cannot do without a strong air force. A strong air force cannot do without a fighter with excellent performance. A fighter with excellent performance cannot do without advanced aeronautical engineering. It is based on aerodynamics, and the development of aerodynamics cannot be separated from you.”

"I'm honored to stand here and say what I want to say. In my opinion, there are only two smartest races in the world, one is the Jews, and the other is the Chinese."

"Gentlemen and ladies, believe in yourself, you are no worse than anyone else, please work hard for your motherland, develop fighter jets with outstanding performance, and defend the sky of the motherland."

"China, which is suffering, needs your efforts."

"thank you all."

In the auditorium, Feng Kamen, who greeted him politely after his speech, slowly walked off the podium.

The audience was silent. Thousands of teachers and students were staring at this top scholar from a foreign country. The content of this speech deeply infected everyone present.

The importance of the sky!
The next moment, Principal Mei Yiqi and a group of professors who were sitting in the front row of the auditorium stood up. Seeing the professors like this, the rest of the students who were sitting upright stood up one after another.

"Thank you for teaching."

One after another voices containing respect, emerged from the thousands of people, and finally converged into a uniform sound like a stream, swept the auditorium like a torrent, and echoed in all ears.

"Thank you, Professor Carmen..." Yu Hua was moved by Feng Carmen's kindness and support and whispered to himself.

In a speech, he rationally analyzed the gap between biplanes and all-metal monoplanes from an academic point of view, and then transitioned to the importance of disciplines and the sky, and finally encouraged Tsinghua students to strive forward.

Feng Kamen is one of the few top scholars with goodwill and goodwill towards China.

This speech, like a booster, gave everyone present confidence.

As an industrial country, Japan's national strength and army are really too strong, far superior to China by many times. Since [-], China has lost the three eastern provinces and the land north of Pingjin, and has been defeated again and again. .

The Japanese used cannons and planes, as well as massacres, to destroy the hope and confidence of countless people in China.

For Yu Hua, a full-scale victory in the War of Resistance was inevitable, but for the thousands of teachers and students in the auditorium and the tens of thousands of Chinese outside the Tsinghua Garden, they did not know whether they could win.

Under such circumstances, those who are not determined will become traitors and work for the Japanese.

Because the change of dynasty has happened too many times. Many people do not understand why so many people become traitors. In fact, these traitors do not understand the significance of anti-Japanese soldiers resisting the Japanese.

The Japanese are so powerful that there is a high probability that they will change their dynasties in the future just like the Manchus entering the customs. It is far better to risk their lives to resist than to exchange for a support.

Looking back on history, a truth lies in the darkest place of each dynasty - most people fear the end of rebellion, but no one can refuse to support the achievements.

Because of this, for the traitors, they do not think they are so-called traitors, but...

The hero who has the merits!

The significance of Feng Kamen's speech is to make most of the people present feel warmth and hope. No matter what, they must work hard, burn themselves, and give everything for the suffering of China.

Surrounded by the teachers and students of the school, Professor Feng Kamen and the accompanying Colonel of the Army Aviation Bureau left the auditorium together to end this temporary academic speech.

……

"The importance of the sky..." In the Ping Zhai dormitory, Yu Hua was still immersed in Professor Feng Kamen's speech not long ago. He couldn't forget it for a long time. His mood was agitated. looks like.

There was only Yu Hua himself in the dormitory, holding a pencil in his right hand, a drawing was placed on the table, and he was sketching the lines. Soon, the outline of a fighter jet appeared on the white drawing.

The teardrop-shaped glass cockpit, the iconic close-coupled canards, the large triangular aerodynamic layout, the horizontal vertical tail, the wing body fusion design and the streamlined body, the two delta main wings are painted with the yellow August 10 logo, all these elements constitute a unique feature of the prosperous world. China's main fighter - J-[-]C!

What is a hardcore military fan?
That is... Across the land and air arms, familiar with naval equipment, well aware of the development and role of all military weapons, and can tell the story behind it.

On the white blueprint, a third-generation semi-combat fighter that will be born 70 years later is vivid, revealing the special style of a high-level killing weapon. Yu Hua perfectly reproduced the aerodynamic layout of the J-10C with the image data in his mind.

But it's not over.

Yu Hua, who was in a turbulent mood, took a new drawing with a heroic spirit. The pencil touched the surface of the paper, leaving a faint friction sound and black marks. Soon after, a classic fighter plane with a central lift body aerodynamic layout was born.

This is the famous Su-27 'Flanker' that exudes elegance!
Looking at the Flanker on the drawing, Yu Hua couldn't help but imagine that if this fighter could be developed in the current era, the Su-27 Flanker with the performance of the third-generation fighter could be developed in the current era, and the Su-96 Flanker with the performance of the third-generation aircraft would face the little devil's Type 97 fighter, Type [-] fighter and Zero. A large number of propeller monoplanes such as fighter jets can be easily crushed.

It's a pity that the idea is beautiful, and the reality is skinny.

Yu Hua can perfectly restore the aerodynamic layout of the central lift body, but he does not understand the aerodynamic principles and foundations involved. Even if he draws a gourd, the world does not have the preconditions for the manufacture of the Su-27 'Flanker'.

Biplanes and all-metal monoplanes are a watershed, propeller planes and jets are another watershed, fighter jets with turbojet engines and fighter jets with turbofan engines are also a watershed, and each watershed requires a large amount of forward It is supported by technology, involving materials, mechanics, dynamics, aerodynamics, wind tunnels, computers and electronic equipment.

Condensed the most advanced and cutting-edge technology of human civilization.

Yu Hua glanced at the elegant and noble Su-27 on the drawing, took a deep breath, took out another piece of paper, and started writing with his right hand.

After 5 minutes, on the third drawing, a cutting-edge fighter exuding the ultimate sci-fi atmosphere appeared. Canard + side wing + DSI inlet + triangular main wing + full-motion tail constitute the world's unique lifting body side canard Aerodynamic layout, this is the fourth-generation fighter jet equipped by the Huaxia Air Force in the prosperous age - J-20'Veyron'!
"gorgeous……"

Yu Hua stared at the J-20 Veyron with a murderous aura on the paper. He couldn't help but see various related videos he had seen in his previous life in his mind, and expressed his admiration from his heart.

At this moment, Yu Hua's heart finally calmed down.

In the era of propeller planes, in front of them is the fourth-generation fighter aircraft that condenses countless cutting-edge technologies in the future. The contrast between the two makes people fall into an inexplicable calm and self-confidence.

For people struggling with food and clothing in this era, they may never dare to imagine how powerful China will be in the future.

"With me here, the future will definitely be better..." Looking at the J-20 fighter jet on the blueprint, Yu Hua took a deep breath and whispered to himself.

When the words fell, he took out a box of matches, wiped it lightly, and the red flames bloomed. Yu Hua ignited the three sketches of the fighter plane concept. These fighter plane concept drawings with the correct direction beyond the current era for decades must be physically destroyed to avoid Risk of leakage.

After the three fighter concept maps were burned, Yu Hua completely smashed the embers and completed the physical destruction. With a calm and gentle attitude, he wrote an introduction to the military and civilian guidance.

After these busy days, the progress of the introduction to military and local guidance is more than halfway through. According to the current efficiency, it can basically be completed within a week.

The sky gradually became dizzy, and in the distance, a red glow appeared.

Tonight, for Yu Hua, there is an extremely precious opportunity waiting for him.

……

Tsinghua West Campus No. 15, originally a professor of the Chinese Department lived here. Later, the professor moved to live in the South Campus, and it was vacant, which happened to be reserved for Professor von Karman as a place to stay.

"Professor Carmen, after the latest investigation, we found that the Chinese people almost overnight possessed the most important standard concepts of the industrial system. Although they are not mature and comprehensive, this is very miraculous. Originally, the Chinese people were under the joint blockade of the West and the Japanese. , does not have the soil for the birth of standard ideas." Colonel George held a new intelligence document in his hand, and his words were a little surprised and surprised.

standard.

This is the core of an industrial country. If a country wants to have a standard concept, it must first become an industrial country, and then continue to explore and summarize in the process of development, and finally get this precious thing.

The voice was in his ears, and Feng Kamen frowned slightly, but he didn't say anything. He couldn't do anything about this kind of national-level matter: "What is the reason, do you know?"

"The main reason is that this Chinese mechanical drawing contains a systematic concept of standards, emphasizing the importance of standards in industrial production." Colonel George responded: "Of course, although Chinese industry has this concept of standards almost overnight, However, limited by the level of technology and manufacturing equipment, the overall level of industrialization is still very backward, and it cannot get rid of the hat of an agricultural country."

Chinese Mechanical Drawing...

Feng Karmen was curious.

"Dong Dong!" Suddenly, there was a knock on the door.

Feng Kamen heard the knock on the door, raised his hand to look at his watch, it was exactly eight o'clock, the face of the young student in the afternoon came to his mind, a smile appeared on his face, he didn't pay attention to Colonel George next to him, and got up to meet the door.

Open the door.

In front of the door, Yu Hua in a Chinese tunic suit is standing.

"Hello, Professor Carmen." Yu Hua greeted with a smile.

(End of this chapter)