September 26, 1967.

"Hello, Mr. Yang?"

"I am Zhang Shan from Gangneung."

In the headquarters of the machinery factory, Yang Xiaotao picked up the phone and listened to the voice inside.

Nowadays, Gangneung Machinery Factory calls once a day.

Nothing else, the production of landing gear is still unfinished.

We solved the material problem before, then solved the process problem, and helped solve the machine tool problem a while ago, but until now, we still haven’t produced the finished product.

Now, there are only 62 days left before the end of the mission.

Exactly two months.

It would be strange if Yang Xiaotao said he was not in a hurry.

"Director Zhang, I am Yang Xiaotao."

"Mr. Yang, after what we learned last time, I have found the problem."

"What's the problem?"

"Hydraulic oil, the hydraulic oil used does not meet the requirements."

Zhang Shan said that there was not much excitement in his voice because such conversations had already gone on too many times.

During this time, I have become quite familiar with Yang Xiaotao. All I need to do is make a phone call and ask questions directly.

It's useless to be polite.

If there is a problem, let’s work together to find a solution.

In a word, it is necessary to make it happen.

"Hydraulic oil? Is there anything I can do?"

Yang Xiaotao thought of many problems, but he did not expect that it would be an oil problem.

"We have contacted our superiors and are looking for suitable hydraulic oil."

"Okay, if you have any news, you must tell me."

"clear."

After a brief exchange, Yang Xiaotao hung up the phone.

At this time, looking at the information on the wall of the headquarters, most of it has been completed, and many information columns have big red stars affixed to them.

This means that these parts have been sent to the machinery factory and have passed the inspection.

There are still some in progress, but they are all coming to an end.

Now, what Yang Xiaotao focuses on is the skin of Liuzhou Machinery Factory, and the other is the landing gear of Jiangling Machinery Factory just now.

After getting up and walking back and forth in the headquarters, Yang Xiaotao loosened the buttons on his collar.

Time has entered September, and Sijiucheng has lost its original popularity, but Yang Xiaotao is still upset.

The aircraft is a whole, and even if one part is missing, it may affect the flight.

So towards the end, he became more anxious.

"Mr. Yang, I received a call from Liuzhou and half of the wing skin production has been completed."

At this time, Lou Xiao'e ran in from outside and told Yang Xiaotao the good news.

"Has half of it been produced? Has it been tested?"

"I checked it and Section Chief Guo said it himself, there is nothing wrong with it."

After Lou Xiao'e finished speaking, Yang Xiaotao rolled up his sleeves with a smile, "This is good news."

"Let them work hard and try to make the other half, and then send it over quickly, and it will be assembled here."

Lou Xiao'e also had a smile on her face after hearing this, and then ran out quickly.

"Old Wu, I just received the news..."

Yang Xiaotao walked out of the headquarters and came to the first workshop, where he saw Wu Zhe checking the progress.

"That's good news, but I'm more worried about the landing gear."

"If we can't make this thing, our plane will be like it has no legs, it won't be able to run or fly."

Yang Xiaotao hummed, and then repeated what Zhang Shan said.

"Hydraulic oil? This..."

Wu Zhe didn't expect that the problem would appear in the hydraulic oil. Aren't these things the same?

Anyway, when they designed airplanes before, they all used the same equipment.

"I don't know if there is anything suitable in the logistics department."

"I hope so."

Yang Xiaotao was not sure, he just hoped that Mr. Qin would give him some help.

"By the way, Lao Wu."

Yang Xiaotao thought of something and spoke again, "Speaking of this lubricant, let me ask, do all our aircraft use the same oil?"

Wu Zhe nodded immediately, "Yes, there are only two companies in China that can refine and process petroleum, so the aviation fuel used by planes is the same."

Yang Xiaotao frowned and asked, "I think our planes may be different."

Hearing this, Wu Zhe was shocked.

But he quickly reacted, then patted his head and said, "I'll go ask."

After saying that, he ran outside.

Yang Xiaotao didn't stop him, he was also thinking about aviation fuel.

This thing is definitely better than ordinary gasoline. At least it must burn quickly and have a high temperature. Otherwise, how can it afford the engine?

"I hope so."

Thinking in his mind, Yang Xiaotao turned his attention to the aircraft skeleton being assembled in front of him.

Now, the processing tasks of the machinery factory are coming to an end, and all they can do is wait.

Jinling, 14 schools.

Wang Qing looked at the calendar card with a serious expression.

However, in this seriousness, there is also a touch of melancholy.

The due date is coming soon.

The tasks promised have not been completed yet.

Two months, almost a month has passed, but there is still no breakthrough in research.

Fortunately, the various factories below are also cooperating, allowing the research to continue.

"It would be great if this child was born a month later."

Wang Qing couldn't help but sigh when she thought about confinement after giving birth.

"Director, the data is out."

Just when Wang Qing was stunned, Xiao Li, who was holding the test data, ran over quickly, looking very excited.

"Quick, show me quickly."

Wang Qing wanted to stand up eagerly, but before she could get up, she felt her body sink, and then she quickly sat down holding her stomach.

"Director, Director."

Xiao Li said anxiously, Wang Qing sat for a while, waved her hand, "It's okay, tell me the result."

"good."

Xiao Li, you quickly explained this report and said it.

After hearing this, Wang Qing smiled and said with excitement, "Yes, this is the right direction."

"Look, the experimental data from these experiments all show that it is more accurate every time."

"I estimate that with a few more experiments, we can find the most suitable ratio."

"Go and tell the director that the experiment cannot be stopped. It is best to conduct it twice at the same time. This can also save time."

After hearing this, Xiao Li immediately ran out with the report.

Wang Qing waited for Xiao Li to go out and stroked her belly again, "Baby, be good."

"Although Mom wants to see you very much, but listen to Mom and stay for a while, okay?"

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