Seventh Machinery Department.

Mr. Wang stood beside Mr. Qian and looked at the report in front of him seriously.

At this time, Ran's father was standing aside, looking a little uneasy.

As Mr. Qian continued to read each piece, Mr. Wang almost stretched his head in front of Mr. Qian.

Even if you don’t understand the data above.

"Zhiqiang."

Mr. Qian read the last page, and after mentally reviewing the data report above, he looked at Ran's father beside him.

After hearing Mr. Qian's words, Ran's father looked serious and waited for the next step.

"Thanks for your hard work."

After Mr. Qian finished speaking, he stood up and stretched out his right hand.

Ran's father immediately took a step forward and reached out to hold it.

"Nice job."

"Thank you, thank you."

The two nodded to each other and smiled with relief.

"Hahaha"

"It's done? Isn't it?"

When Mr. Wang saw this scene, he still didn't know the outcome.

Compared to the warm smiles of the two of them, Mr. Wang's voice was much higher pitched. He directly picked up the report on the table and flipped through the pages. He couldn't understand it, but he liked reading it.

"Old Wang, we can report to our superiors."

"The experimental results are absolutely no problem."

"us."

When Mr. Qian said this, he calmed down a little, and then said solemnly, "We already have the rocket to launch the satellite."

Mr. Wang took a deep breath and said, "Okay, I'll tell you now. I'll tell you in person."

After saying that, he ran out in a hurry, looking as cute as a child.

"Lao Ran, go home and rest."

Mr. Qian sat down, and Father Ran also sat aside and said softly.

Ran's father shook his head, "Not yet. Lao Yan still needs to research new missiles. I have to go take a look."

"Thunderbolt 3, hasn't it been confirmed yet?"

Mr. Qian asked curiously, "Didn't the last aircraft test launch succeed?"

Father Ran nodded, "The last test launch was indeed successful. The missile was launched from an altitude of 20,000 meters, and the final speed reached Mach 4."

"But it also exposed a lot of problems."

Mr. Qian had so much time to spare, "Tell me, what are they?"

"The first one is that the speed of the missile is too fast and the surface temperature is too high, so high temperature resistant materials are needed."

"However, this has been solved. We found a lot of titanium alloys from the Red Star Steel Plant, and the results are good."

Mr. Qian nodded, it was Mr. Wang who came forward to find out about this matter.

However, as a result, the demand for special alloy materials will increase.

"The second issue is the range of the missile. The original designed range was 10,000 meters."

"But the final range was only over 8,000, and this was still done at an initial velocity of Mach 3."

When Father Ran said this, Mr. Qian immediately wrote down the data on the paper, then frowned and said, "In other words, the missile flew in the air for less than eight seconds?"

Father Ran nodded, "Yes, and of these eight seconds, only five seconds are effective. In other words, if you don't hit within five seconds, you might as well blow yourself up."

Qian Lao put his hand on his forehead and said, "This is a problem. The other party is not just dumbfounded and motionless. If you take into account his speed and move again, it is difficult to guarantee the accuracy."

"No wonder Mr. Peng insists on having two planes. He intends to use quantity to make up for the gap."

Mr. Qian sighed with emotion, and then asked, "The range is not enough? Is it because of insufficient fuel?"

"Yes, when missiles are launched at high altitudes, we also need to consider the thinness of oxygen at high altitudes, so we need to ensure sufficient oxidizer."

Mr. Qian nodded after hearing this, "This really needs to be considered."

"How to solve it?"

"It's still under discussion, but there are several plans that are being tested."

"Okay, then as soon as possible."

"We don't have much time. I heard that the parts for the second aircraft are almost done. We can't delay things."

Ran's father stood up immediately after hearing this, "I'll go take a look."

Mr. Qian nodded and watched Ran's father leave the office, suddenly smiling on his face.

"Both of these two sons-in-law are no worse than the other."

...

Gangneung, Cemetery!

In front of the tomb, Yang Xiaotao looked solemn and bowed respectfully.

Zhang Lin's eyes turned red.

On the other side, Zhang Shan's wife was standing with her two children. The unfamiliar uncle in their children's eyes made them afraid to speak.

Wang Hao placed the food and wine he brought in front of the tomb, then stepped away and walked behind Yang Xiaotao.

Yang Xiaotao took out a heavy steel aircraft model from his bag, with the name Baiju Jianshi engraved on it.

He gently came to the tombstone and put it down gently.

"Director Zhang! I am Yang Xiaotao!"

"We haven't officially met yet!"

"But we are familiar with each other, so I know you are a good comrade!"

Yang Xiaotao looked sad and tried hard to control his surging emotions.

"Let's say something nice, because I think we shouldn't talk nonsense here."

"The aircraft we want to build has been successful."

"Flying very high and very fast."

"This time, I brought a model of it, and I just put it here for you to come out and take a look at when you have nothing to do."

"Don't worry, after I complete the task later, I will send you a little black bird so that you can play with it..."

"Lao Zhang, thank you..."

Yang Xiaotao talked in front of the tomb for a while, then walked to the woman and reached out to touch the two children.

"Sister-in-law, my name is Yang Xiaotao."

"Yang Xiaotao from Hongxing Machinery Factory."

"If you need any help in the future, send me a message and I will definitely help."

The woman looked at Yang Xiaotao's sincere eyes, and then nodded slightly, not knowing how precious Yang Xiaotao's promise was.

Factory Director Liu and others who came with him were moved when they heard what Yang Xiaotao said.

How could they treat Zhang Shan like this, who had never been masked before? What else could they say?

Zhang Lin lit the yellow paper he brought aside and then burst into tears.

"Brother, the landing gear we are making now is getting faster and better."

"Brother, Mr. Yang said that we will make landing gears for better aircraft in the future..."

"Brother, don't worry, I will never give up in this life, I..."

Tears fell into the soil and disappeared instantly, as if falling on Zhang Shan's hand.

...

"Mr. Yang, when will you come again?"

"We still have a lot to say to you."

"Yes, Mr. Yang, you have only been here for three days, which is too short..."

"Mr. Yang, the train won't arrive until tomorrow, and your plane will arrive in time tomorrow..."

At Jiangling Machinery Factory, a group of people surrounded Yang Xiaotao, their words filled with reluctance.
To be continued...