Lin Yufan was very absent-minded all day today.

The scene that happened at noon had a huge impact on him in his mind.

In fact, he was very grateful to this country. If it weren't for the country, he might have been abducted by human traffickers when he was a child; if it weren't for the national policy, he might not even have the opportunity to go to elementary school; if it weren't for the country, he might have starved to death on the streets long ago.

Therefore, Lin Yufan likes China very much. Even if God gave him a birth to an unfortunate family, he did not blame others, but just tried his best to live his own life.

But today, he suddenly realized that the stable life of all of them was built on the shoulders of a group of great men.

When they were eating, sleeping and reading books, there was a group of people who were always worried about foreign powers and worked hard to develop technology in order to make their country stronger and protect every Chinese citizen.

Just like the old Shen who fainted in the corridor.

Everyone is selfish, and Lin Yufan himself is no exception. This is human nature and not something to be ashamed of.

Escape is not shameful, it is their own way and principle.

However, Lin Yufan always felt that at this time, he needed to do something, otherwise he would feel strongly uneasy in his heart.

The next day, today is also the last day for Chen Zuyuan and his team. After today, Lin Yufan and his team will be sent back to continue the summer camp.

Lin Yufan has been locking himself in the room since the morning and has not come out. Even if Chen Hongwen knocks on the door, he does not respond.

At first, Chen Hongwen thought something had happened to Lin Yufan and was about to ask someone to break in, but Lin Yufan handed out a small card from the gap under the door, which read:

"Don't disturb me, come to me alone at 10 o'clock in the evening."

Chen Hongwen frowned, feeling very strange, but he still gave up his plan to break in and went back to continue to develop parts of the turbofan 15 engine.

At ten o'clock in the evening, Chen Hongwen came to Lin Yufan's door again and knocked on the door. This time, the door was quickly opened.

However, as soon as Chen Hongwen entered the door, he was about to ask Lin Yufan what he was doing during the day, and he was completely stunned.

"You are..."

The whole room was in a mess, and the ground was covered with messy paper, and the paper was covered with fancy patterns and numbers.

Lin Yufan just smiled slightly, his eyes full of fatigue.

"This is the R&D drawing of the turbofan 15 engine. I have made some improvements and data enhancements based on your current engine structure. For example, here are the three groups of responsible flange parts. Although the materials they use are the top in the world, they occupy too much area and have a serious low utilization rate. If another rare tungsten is replaced, the utilization rate can be greatly improved and a large amount of money can be saved."

"This is the component you developed. In fact, your general direction is not wrong, but you still have some problems with the circuit. You can look at it here first..."

At first, Chen Hongwen just looked at Lin Yufan with confusion on his face, but as Lin Yufan explained one drawing after another, his expression went from doubt to surprise to finally became extremely shocked!

He didn't have time to determine whether what Lin Yufan said was really feasible, but based on his understanding of the engine alone, he could have taken on a development project for engine parts.

Moreover, Lin Yufan's explanation was very detailed, and he basically explained every key point of the engine very clearly. He was even 60% sure that the method he said was feasible.

However, the things involved in this thing were too broad, so he could not simply draw a conclusion. He could only carefully pack up every drawing and take Lin Yufan to Wei Renyi's room with him.

At this time, Wei Renyi was almost ready to fall asleep. He was wearing pajamas and opened the door of the room, but found Chen Hongwen standing at the door with a serious face, with an intern behind him.

Before Wei Renyi could say anything, Chen Hongwen handed over the drawings in his hand and roughly repeated what Lin Yufan said just now.

Wei Renyi was just a little confused at first, but the more he heard, the more shocked he felt became.

After looking at the drawings for a long time, he finally said: "We have thought that rare tungsten is used on the flange, but this will cause excessive load on other components in the engine. How should this problem be solved?"

Both of them looked at Lin Yufan, who explained: "Actually, this problem is easy to solve. First, let's look at the 32nd page of the drawing. I added a new circuit board to this page of the drawing, and then built 1,300 circuits to expand to each part of the engine, so that the load on other parts can be effectively reduced."

Wei Renyi frowned and said, "But there will be new problems like this. There are more than 1,300 micro-circuits, let's not talk about anything else, just the utilization rate you just mentioned..."

Lin Yufan responded casually: "We can consider this issue first..."

Wei Renyi asked a question, and Lin Yufan replied that it lasted for four hours from eleven o'clock in the night to three o'clock in the morning.

He could not ask any questions until he looked at the drawings in his hand.

His trembling hands tightly held the drawings, and there were two tears on his wrinkled face.

"Okay, OK!"

His voice was very trembling, but Lin Yufan and Chen Hongwen, who were standing aside, could hear the excitement and excitement in his voice.

Wei Renyi touched his nose and even forgot that he didn't even wear slippers, so he ran towards Lao Shen's room next door.

Not long after, Lin Yufan saw two old men crying and walked back with tears in their hands.

Old Shen, also known as Shen Jun, is a scientist who has been engaged in military research since the reform was opened and has made great contributions to China's scientific cause.

Old Shen came to Lin Yufan, patted his shoulder, his eyes full of praise, and after a long time of preparation, he only said: "Okay, it's great!"

Wei Renyi walked up with the drawings and said, "This thing is too important. We need to contact the people above urgently, but you will definitely not be able to leave tomorrow. At that time, I will ask the people above to lead you and take charge of the research and development of the turbofan 15 engine. Are you willing to accept this task?"

Wei Renyi and Shen Jun both looked at him eagerly, as if when they looked up at the starry sky, their eyes were filled with light.

Lin Yufan suddenly remembered a long time ago, when he was very young, one night, many people sat together in the orphanage yard, surrounding the dean and looking at the stars in the sky.

At that time, the dean told them: When a person dies, he will become a star.

Some people will ask: Why are you turning into a star?

The dean would smile and tell them: Light up the people walking on the night path.

At that time, Lin Yufan often wondered, after he died, could he become a star and illuminate the people walking on the night path?

"I do."

Maybe not, but at least for now, he decided to make some changes first.
Chapter completed!