Start with a blacksmith shop

Li Yun's shocked eyes gradually recovered and she looked at him with wide eyes.

"You know you're afraid? How much does an eight-meter-long plane weigh?

Take the small one as an example. The small one weighs 1.6 tons. The total weight of the big one must not be 3 tons? "

Li Yun's tone was full of disbelief, and she had guessed that the weight was heavier, and three meals was not considered light.

But she still didn't guess correctly. After she told the guessed data, she added a sentence at the end.

"Hey, the total weight of the things I designed is 5 tons, okay, okay, I won't say anything anymore.

Mr. Yan is now directing people to carry the eight-meter-long frame.

I don’t know where to do the subsequent assembly work.

I'm going on a business trip again this time, and it shouldn't be too long. "

While the two were talking, Yan Hang and several soldiers were loading parts into the car.

In the following time, he did not stay with Li Yunnii, but also chatted with Liu Xiaodong and Guo Shugui about some things.

By noon, with the hard work of many soldiers, all the parts were loaded on the vehicle.

Cover the tarpaulin of the carriage so that no one knows what is inside.

After loading the car, Yan Hang greeted Li Zhenhua to leave. He was taken away by the old man before he even had time to eat lunch.

He said goodbye to Li Yun and others, and sat in the passenger seat of the military truck, which drove towards the distance.

The military truck drove all the way south, and Li Zhenhua, who was sitting in the car, also guessed that he was going to transport his parts to Hongdu.

As expected, after getting on the highway, the military card went directly south.

And he also got a definite answer from Yan Hang, which was to go to the Hongdu factory, and in Hongdu, they had set aside a workshop specifically for this aircraft.

He sat on the road and staggered to sleep. When he opened his eyes again, it was completely dark outside.

Looking at the car that was still running, he wasn't sure where he was now.

Anyway, after knowing where the destination was, he didn't ask at this time. After that, the car drove on the road for another four or five hours.

When the car got off the highway, he also looked at the time. It was already twelve o'clock in the evening.

This time point was actually about the same time as the first time he delivered an engine to the Hongdu factory and got off the highway.

The military driver took him and the parts on the car and drove in through the main gate of the Hongdu factory.

After walking for a while, he still knew something about Hongdu Factory, but he felt more and more that something was wrong.

Then he turned onto a road at Junka, stopped at the edge of the road, passed another checkpoint, and finally stopped at the entrance of a workshop.

It seemed that this was the destination, and then he got off the military card.

Looking at Yan Hang, who jumped out of the car as before, he walked towards the old man.

"Old man, what kind of place is this? Is this still in your company?"

Yan Hang was not surprised by this question. He had guessed that it would be asked from the beginning.

"This is a factory where military aircraft are manufactured. The places you have been to before are all civilian manufacturing factories.

These two places are separate. The engine you provided before can only be regarded as the flying boat built on the periphery of Hongdu.

Our main business is not small aircraft for civilian use. Our main business is the manufacture of fighter jets. Don’t forget that we are a state-owned military equipment manufacturing factory. "

After Yan Hang's explanation, he understood.

Once they arrived at the place, their work could begin. Together with many soldiers and technicians from the Hongdu Factory, he began to unload various parts from the vehicle.

After more than two hours of careful unloading, they finally removed all the parts from the car.

And this time, under the command of Li Zhenhua, the various parts of the aircraft were sorted and placed in the workshop.

After they put all the parts of the aircraft in place, these soldiers drove back to the unit overnight to report for duty without rest.

After these soldiers left, there were only a dozen technicians from Hongdu left in the workshop, as well as Yan Hang and Li Zhenhua.

As for Gu Changkong, the chairman of Hongdu, he had already started various arrangements when he came back, and now he doesn't know where he has gone.

Yan Hang looked at the parts placed in categories in front of him, feeling very uneasy in his heart.

When he was loading the car, he had already seen the processing level of these parts and the materials used for the parts.

We also visited the engine parts in particular and carefully studied the materials used in the parts.

Through his years of experience, he already knows that many engines are made of single crystal metal alloy materials.

This also let him know why the engine of the 3.5-meter small aircraft can emit blue tail flames.

If the materials are good enough, the advanced design structure can be brought into full play.

Just looking at the materials of these parts, you can tell that there are still many secrets that have not yet been discovered about this young man Li Zhenhua.

From here, it seems that this guy didn't just build two airplanes.

Yan Hang touched a leaf in front of him, which was less than twenty centimeters long, and asked Li Zhenhua without replying.

"Zhenhua, what I'm touching right now should be a blade on the engine.

Can you tell me about this engine you designed? And the materials used for this blade are not simple either! "

At this moment, there were only two of them left in the workshop, and the technicians from Hongdu Factory had also returned.

"Well, this is a blade on the fan in front of the engine,

The engine I made has a total length of 250 centimeters and a diameter of 65 centimeters.

The weight is 300 kilograms, its thrust-to-weight ratio reaches 12, and the total thrust reaches 3.6 tons.

It is more than twice the thrust of the engine on my small plane. The total thrust of that small engine is only 1.4.

It was because the calculated thrust table was so strong that I was able to create that small plane. "

I had some assumptions about this eight-meter aircraft, but I didn't expect its thrust to be so strong.

"3.6 tons of thrust? You are really good at it. I remember that the afterburning thrust of the turbojet V is only 3.8 tons.

Your engine, which is only 2.5 meters long, can be used as the power of the J-5 in terms of thrust.

You really know how to play, and you play so hard,

Okay, let’s do this for today. You’ll tell me about the materials tomorrow. It’s getting late. You can follow me to the office to spend the night.

We will start work early tomorrow morning and strive to get your aircraft out as soon as possible. "

Li Zhenhua followed Yan Hang to his office. Although he had dozed off on the way here, he was still a little tired.

Not long after lying down on the sofa, he fell asleep in a daze.

Early the next morning, the sun shone on his face, and he woke up soon.

I followed Yan Hang to eat in the cafeteria of Hongdu Factory, and then returned to the workshop.

The technician who helped move things in the workshop yesterday had also been here long ago and was waiting.

"Zhenhua, these are the ten most skilled masters in our factory. They will help us assemble your aircraft together, which will make it faster."

Yan Hang briefly explained to him, and Li Zhenhua nodded. It would be nice to have someone to help.

He simply forgot about whether to keep Hongdu Factory a secret at this time. He believed in Yan Hang and believed that Hongdu Factory would not do that in some matters.

The assembly started, and these people were all under his command. The engine was still assembled first.

With the help of these people, the assembly speed is much faster than if he did it himself.

Of course, he still did it himself on some key parts.

With the help of the analytical eye, the speed of assembling the engine was quite fast. In just two days, a turbofan engine was presented in front of everyone's eyes.

Yan Hang looked at the engine in front of him and couldn't help but sigh in his heart.

Who would have thought that a turbofan engine that is only 2.5 meters long and 65 centimeters in size can provide 3.6 tons of thrust?

Such a compact engine with such huge thrust can not only be used on his current aircraft.

For example, the Rainbow Five drone has a take-off weight of more than 3 tons. Such a small engine can completely make it fly.

Of course, this is just a metaphor. After all, Rainbow Five uses a turboprop engine, and this engine is a turbofan.

But around this engine, new aircraft models can be developed. As long as the thrust is high enough, it is still feasible to design a new aircraft.

The engine has been assembled. Although Li Zhenhua has obtained various calculated data, Yan Hang still needs to do some testing.

Yan Hang then contacted Changan Engine Company, and their engine will be transported there for test runs.

The engine's next trip was arranged, and he didn't care about these things. He continued to assemble the second engine.

"Old man, if this engine is sent to Chang'an, let's do it there first and let them do a comprehensive test.

I have made enough parts for this engine to assemble four units, and we will use two of them on the aircraft.

It's enough now. I will take out the remaining three units later and leave one as a spare part. "

Yan Hang arranged for the engine to be transported on a military transport plane. Chairman Gu Changkong personally took the engine there.

After the engine was gone, he devoted all his body and mind to the assembly of the eight-meter aircraft.

Gu Changkong took the packed engine to the nearest military airport and boarded the Yunba waiting here.

Then he flew towards Chang'an.

On Changan Power's side, the department that specializes in managing the test bench received an outsourcing test task early in the morning.

After sending the data, these staff members all thought that someone was joking with them.

It's just a small engine measuring 2.5 meters, with a total weight of no more than 300 kilograms, but its thrust can actually reach 3.6 tons, which is outrageous.

What they don't know is that there is an engine smaller than this one that has already flown into the sky!

The unit that sent the subcontractor was Hongdu Factory. It was impossible for this brother unit to joke about this kind of thing.

So Chang'an is also waiting for the engine to arrive. They want to see what is going on with the engine.

Finally, at around ten o'clock, Gu Changkong's Yunba landed at the airport, and then the engine was loaded onto a military truck and transported to Chang'an Power.

More than ten minutes later, the personnel from Changan Power finally saw this small engine.