Scholars in the courtyard

When the time came, Yang Xiaotao began to assemble the stamping machine!

Two hours later, Shi Hanzi carried the welded gas chamber over, and Yang Xiaotao took it over and installed it smoothly.

Three hours later, the sky outside was still gloomy and there was no light of dawn.

Three and a half hours later, Yang Xiaotao stood up, took off his glasses, then looked at the stamping machine in front of him, which was about the same size as Wangcai, and said to the people waiting aside, "It's done!"

Boom…

As he spoke, thunder sounded outside.

Through the window, you can even see a flash of lightning.

"It's done!"

Yang Xiaotao's voice was drowned in the rumbling thunder, but it left a deep mark on the hearts of those around him.

Old Chen and the others rubbed their eyes, feeling sleepy, but they couldn't stop moving forward.

"Is this it?"

Looking at the small stamping machine in front of him, Mr. Chen was a little suspicious.

He has seen many engines, even aircraft engines manufactured by machinery factories.

But what he saw in front of him was even inferior to the engine used by an armored vehicle.

No matter how you look at it, it’s hard to believe.

"Yes, it's done!"

There was no sleepiness on Yang Xiaotao's face and he spoke seriously.

Mr. Qian and Mr. Wang had already begun to arrange manpower and immediately sent the stamping machine back to prepare for experiments.

“Whether it’s going to work or not, let’s test it first!”

The old man's face looked tired, but his eyes were very shrewd.

"We'll arrange it right away!"

Mr. Wang said something, and Yang Xiaotao made a gesture to Liang Zuo, who immediately brought people over to prepare to load the car.

The entire stamping machine only weighs four to five hundred pounds. Seven or eight people came up and used various tools to easily lift the engine onto the armored vehicle.

"Let everyone have a good rest and leave the rest to us."

Seeing that Yang Xiaotao wanted to get in the car, Mr. Qian persuaded him from the side.

Mr. Wang also nodded, "Take a rest, we are tired just looking at it. Don't worry, I will definitely call you if there is good news."

After hearing this, Yang Xiaotao no longer insisted. His condition was indeed not good these two days, and his body was as tense as a bowstring.

"Okay, I'll go home and sleep."

"You must tell me if there is any situation."

Mr. Chen stepped forward and patted Yang Xiaotao on the shoulder, "Don't worry, I will tell you if it succeeds."

The old man also walked up to him and said, "Go back and take a nap. Being young is no reason. You have to rest when you should."

After saying that, he looked at the workers present and said, "Everyone, please go back and rest. I will approve this leave for your factory director today."

Yang Youning on the side quickly walked up and said, "Comrades, the chief has already said it, why are you still standing there in a daze? Thank you, chief."

Everyone immediately applauded after hearing this, but the old man raised his hands and said, "Go back and have a good sleep, and take good care of yourself."

"I want to thank everyone."

The old man said, and then left the workshop under the escort of Tong Xiaolong, then got in the car and left the machinery factory under the watchful eyes of everyone.

He knew that if he didn't leave first, the others would not leave.

After the old man leaves, Mr. Chen will also leave.

Then they just need to wait for the results.

The stage has been set up at the Machinery Factory, and it's up to the Seventh Machinery Department to see if it can perform the show well.

Then Mr. Huang also left, followed by Mr. Zhang and Mr. Qin.

In the end, Mr. Wang asked the security department of the machinery factory to help and sent Father Ran and the others back to the Seventh Machinery Department.

After everyone left, Yang Xiaotao turned back and looked at Liu Huaimin and Yang Youning behind him.

"Lao Liu, Lao Yang, I'm going back first, I'm sleepy!"

Yang Youning nodded, "Go ahead, I'll ask Xiao Wang to take you back. If not, I'll go back and catch up on some sleep."

Yang Xiaotao covered his mouth and yawned, then picked up the bamboo hat on the side and left the workshop.

Behind him, Liu Daming and others also found bamboo hats and raincoats, and walked home.

"I have to go back too."

Liu Huaimin yawned, "It's useless here in this state."

"Now that you three are gone, what will happen to the factory?"

Chen Gong came over yawning, feeling sleepy now as the previous excitement passed.

"Isn't there still Lao Wang? Let him take over for a day."

Yang Youning said, Chen Gong rolled his eyes and nodded immediately, "I'm a little sleepy too. Let's take a walk. Let's eat first and then go home."

On the other side, Ran's father was yawning in the armored vehicle, holding the drawings tightly in his hands, looking out through the observation hole. In the gloomy sky, lightning appeared from time to time, and then after a while, there was a sound.

"Light travels faster than sound, so you see the lightning first and then the sound."

"Based on the time difference between the two and the propagation speed of sound in the air is 340 meters per second, we can calculate how far away it is from us."

Ran's father used his knowledge to cheer himself up to prevent himself from falling asleep.

In the car, several other people were using their own methods to refresh themselves. They had already gained something in the machine shop, and the next step was their work.

When the car stopped again, there was no sound of thunder or rain outside.

crunch

The car door opened, Ran's father walked out, and then saw people waiting nearby.

On another armored vehicle, a group of people were lifting the stamping machine off, and not far away was the experiment site.

"Director Ran, I leave this to you."

Qian Lao came to explain and Ran's father nodded, "Don't worry, chief, we will test it out as soon as possible."

"Okay, I'll take people to continue the design. Our Seventh Machinery Department can't let anything slip this time."

"clear."

Everyone was divided into two groups, each busy.

"Captain, what are we doing?"

Old Qian and Old Wang took people to work, leaving Liang Zuoxin and others alone.

"Forget it, let's go back."

"Go back? What about the engine?"

"Leave it there. If we can make one, we can make two."

Liang Zuoxin said, got in the car, and left immediately.

Yang Xiaotao returned to the courtyard, opened the door and entered the house. Ran Qiuye just got up.

Seeing Yang Xiaotao like this, he hurried forward to help fetch water and wash.

Yang Xiaotao indicated that he was fine, but he was very sleepy, and then went into the house to sleep.

Ran Qiuye sent the child to the nursery and prepared to go to the village. He was worried about Yang Xiaotao, so he went back home to check.

Then he heard snoring from the house.

When Yang Xiaotao woke up again, the sky outside was still bright.

But there was no rain, so it should have stopped.

When she woke up, she heard the noise of the children in the room, and then she saw Miaomiao quietly push open the door and stick out her little head to look inside.

There were two little mushroom heads below, and three pairs of eyes looked at Yang Xiaotao at the same time.

"Dad, you woke up."

Rongrong shouted in surprise, and when she looked up, she knocked the two sisters above her back, and then the three little ones woke up.

Yang Xiaotao hurriedly got up and walked to the front, picking up the three little guys.

Only then did he feel that his body was like rust and couldn't move.

"Dad, you slept for a long time, and Mom didn't let me call you."

Rongrong complained in a low voice, and then saw Ran Qiuye coming over and burying her head in Yang Xiaotao's back.

"Wake up, I almost asked someone to help send you to the hospital."

Ran Qiuye walked up with a glass of water, then glared at the little guy who complained, and the three little ones ran out in a flash.

Yang Xiaotao took the water cup and drank it, then shook his head and asked, "How long have I slept?"

"I came back yesterday morning, one day and one night."

"So long?"

"Of course."

Yang Xiaotao finished drinking the water, then looked at Ran Qiuye, "I slept for so long, nothing happened, right?"

Ran Qiuye's eyes reddened, "What do you think?"

"Besides scaring me, what else?"

Yang Xiaotao was moved by the words, put down the cup, and hugged the person next to him.

"This time is special, don't worry, I promise, it won't happen again in the future."

"Who asked you to promise."

Ran Qiuye was hugged tightly by Yang Xiaotao, and leaned on his chest.

"I'm not against you working, but you have to take care of your body."

"If this family loses you, what will happen to the four of us mothers in the future?"

Yang Xiaotao listened quietly, just hugged Ran Qiuye tighter.

After breakfast, Yang Xiaotao didn't go to the machinery factory.

Anyway, what should be done has been done. It happens that today is the weekend, so Yang Xiaotao plans to spend time with his family.

As the saying goes, a spring rain brings warmth. After the rain, the sky clears up, and the sun is like a different person. It takes off its winter clothes and emits a blazing light.

The family learned from the sun and took off their heavy cotton clothes and put on dry coats. Then two bicycles, followed by two dogs, left the courtyard and came to the West Sea.

There are many people traveling around, and there are a bunch of them every three or five days. It is very lively for the family to be together.

Yang Xiaotao found a big tree, put the fruits and cakes he brought, and then took out the prepared kite and led the children to an empty place.

In these years of lack of food and clothing, Yang Xiaotao's kite will naturally not be made of cloth, but made of newspapers and bamboo.

Of course, Xiaowei is the one who contributed the most.

Yang Xiaotao made two such kites in total. Although the newspapers are of different colors and don't look very good, it's good enough to fly.

With the help of the east wind, two swallow-shaped kites were released into the sky.

Duanwu and Miaomiao each held one, and the two little ones clapped and chased behind them, shouting and looking up, not afraid of neck pain.

"Look, we are the only family with kites around."

Yang Xiaotao looked at the group of children around Duanwu and felt proud.

Ran Qiuye was cutting fruit with a knife. After hearing her husband showing off, she hurriedly hummed and said that she was proud of it.

"Watch the children, I'm going fishing, we'll have fish tonight."

Yang Xiaotao said to Ran Qiuye, then picked up the fishing rod and walked to the water.

Just as Yang Xiaotao was leading his family to relax in Xihai, the final experiment of the turbojet ramjet was about to be carried out in the Seventh Machine Department.

Ran's father had red eyes. He hadn't slept for two days and two nights, and the fatigue on his face was visible to the naked eye.

Others around him were not much better.

Except for Comrade Lao Wang who couldn't stand it and slept for half an afternoon, everyone else almost didn't sleep.

"Old Qian, go to sleep for a while. I'll watch here."

Old Wang saw that Old Qian kept drinking water to refresh himself, and came to persuade him.

But Old Qian shook his head, "No need. It will be assembled soon. The last step will determine whether it will succeed or not."

Hearing this, Old Wang said no more. He knew the other party's character. Once he made up his mind, no one could stop him.

"In theory, if the ramjet engine is fine, we will have no problem."

"Right, Old Ran."

Old Qian seemed to be talking to himself, but also to Ran's father beside him.

Ran's father hummed, his lips were a little dry, but the joy on his face flashed by.

The turbojet ramjet designed by Yang Xiaotao has passed various tests, and its performance has met the requirements for use.

Now is the most important part, testing the speed.

While thinking, everything is ready.

"Start."

With the order from Mr. Qian, the staff not far away immediately started to pull the switch and start the test.

Everyone looked nervously at the back of the engine through the bunker.

Slowly, slowly, someone suddenly covered his mouth, not daring to make a sound, but couldn't help it.

Father Ran rubbed his eyes and looked at the fire column coming out of the dimness in front of him. There seemed to be many triangles hidden in the fire column, and then the color began to change.

He knew that this was the Mach ring.

The Mach ring will only appear when it exceeds the speed of sound.

He knew that the appearance of this thing meant that this engine reached the supersonic requirement.

Mr. Qian on the side had already started counting, one, two, three.

Mr. Qian also knew that the number of Mach rings could not directly represent the thrust of the engine, but under the same circumstances, the more Mach rings, the greater the thrust.

Mr. Wang, who was farther away, was still watching the colorful changes, and he had the urge to shout but didn't dare to shout.

It's so beautiful, so beautiful.

Yeah~~~

Suddenly, someone couldn't help but break the rare peace.

Then the whole experimental area was filled with violent shouts.

People nearby hugged each other, jumped and jumped together.

"Success."

Father Ran looked at Mr. Qian, with thousands of words and tears in his eyes, just for these three words.

Mr. Wang came up and hugged the two of them tightly, "Yes, we succeeded."

"I'll treat you, I'll treat you, drink, tonight, you must not go home until you are drunk!"