Siheyuan: The soul travels through time and space to change fate

Xu Damao, Lou Zhenhua, Pei Xinghua, and seven or eight senior fitters were disassembling an aircraft engine in a confidential workshop at this time.

It was taken from the body of the Eagle Sauce high-altitude, high-speed reconnaissance plane that was shot down.

Moreover, according to the opinions of Leader Zhong from the General Assembly and Leader Liu from the General Logistics Department, this engine is still the most completely preserved.

Shen Huoyi and even the Air Force have expressed their opinions on this matter.

After all, they simply didn't believe that the Red Star Factory had the ability to produce aircraft engines.

Many people believe that this engine will probably become a trophy of the Red Star Factory and be displayed.

For many scientific research engineers in this field, this is a waste.

However, the two leaders above were determined, so the engine was still delivered.

After two hours, the engine was still not completely removed.

Firstly, many parts were damaged, and secondly, we had to measure and draw while dismantling.

Even with the presence of Xu Damao, a master of drawing, this task would not be so easy to accomplish.

"Engineer Lou, this next component is hard to disassemble. I don't know how they assembled it. The sizes of the two components nested inside and outside are so different.

In this way, airtightness is guaranteed, but the processing is too difficult.

Even the tolerance of a hair cannot be allowed, otherwise it will not fit in the nest at all.”

While Xu Damao was still drawing the picture, an eighth-level fitter reported that he encountered difficulties in disassembly.

Before Lou Zhenhua could answer, Xu Damao's voice came first.

"Try disassembling it after cooling it with liquid nitrogen. I guess they must have assembled it at ultra-low temperature. Otherwise, with the current level of technology, it would be impossible to produce two parts that fit together so perfectly."

Without high-energy laser cutting, it would be extremely difficult to achieve such high precision.

Therefore, Xu Damao suspected that the other party was able to achieve this level by using the ultra-low temperature assembly method.

"That's not right. If heat expands and cold contracts, then both the inner and outer components will shrink, so the gap in between won't necessarily expand, right?"

Lou Zhenhua's assistant, Fang Zhengdao, still didn't understand.

"The materials of the inner and outer components are slightly different, which results in different coefficients of thermal expansion and contraction. This ensures assembly at low temperatures."

With Xu Damao's reminder, Lou Zhenhua has figured out the principle behind it.

“Go find some liquid nitrogen and give it a try.

In addition, first disassemble this component as a whole.

Don’t let ultra-low temperatures affect the performance of other parts.”

Pei Xinghua instructed his assistant to find liquid nitrogen, and asked the fitter in charge of disassembly to disassemble other parts first.

And first disassemble this component as a whole.

When it was almost time to get off work in the afternoon, I finally got the liquid nitrogen. After cooling down the entire component, the disassembly work became much easier.

In this way, we can also understand the other party's assembly process.

"Ultra-low temperature assembly, this method is really not easy to do!"

Although it has been disassembled, the assembly work of this kind of workpiece is not so easy to replicate.

We can't always use liquid nitrogen to create an ultra-low temperature assembly environment, right?

In that case, the cost would be much higher.

“It is not necessary to artificially create an ultra-low temperature working environment. The other party may be assembling it near the Arctic Circle.

We can also set up an assembly workshop in the northernmost part of Northeast China.

If the temperature is still not high enough, it will be easier to operate over there.”

In Xu Damao's opinion, low-temperature assembly is definitely necessary, but in order to save money, it is possible to find a similar environment first.

“We can’t do this, we must establish a low-temperature assembly environment here.

Firstly, there are not many parts that need to be assembled in this way, and the actual consumption is not that great.

Secondly, for the sake of confidentiality, we cannot place the processing factory on the border.

Damao, speed up. After the dismantling is completed today, exchange our drawings with Shen Huoyi's."

Although the engine on their side is the most complete, there is no guarantee that the damaged part here will also be damaged on the engine over there!

In order to have a more comprehensive understanding of this engine, it is necessary to exchange drawings and share information.

Moreover, Lou Zhenhua also wanted his colleagues from Shen Huoyi to see the technical level of their Red Star Factory.

This actually has a kind of demonstration meaning in it.

Tell our colleagues that our level is not something you can question.

“It’s just the last component left. I’ll spend some time tonight to redraw it for us to study.

As for this one, I will send it over tomorrow!"

Anyway, his drawing skills are already recognized as master-level, so Xu Damao doesn't mind performing a little beyond the standard at this time.

Therefore, throughout the entire work process, his drawing speed was very fast.

It even caught up with the speed of sketching by art students.

As for the technicians who originally assisted him in drawing the drawings, at this time the only thing they could do was to help organize the drawings.

"Alright, then tomorrow Engineer Pei and I will apply for the engine data of the Q-5, and then we can study it systematically, so that we can have a deeper understanding of aviation engines."

It is definitely not possible to design your own engine just by studying this engine.

Lou Zhenhua wanted to study all the existing aviation engine data in the Republic, and then innovate and design and manufacture an engine.

As for restoring the engine of the Eagle Sauce exactly as it was, Xu Damao could probably do it alone, so he didn't plan to spend too much energy on it.

His son-in-law is very good at copying others.

"Father-in-law, you want to make a better engine, right?

As for the counterfeit engines, do you also want to sell them to earn foreign exchange?"

It was only after the Russian procurement team came that Lou Zhenhua realized that his country actually owed the other party so much debt.

He is well aware of the relationship between countries, which is based only on interests, and does not want his own country to be controlled by others because of these debts.

Therefore, Lou Zhenhua set his sights on arms sales.

The success of anti-aircraft missiles and tanks made him very clear about how high the profits from arms sales were.