That night, he was arranged to go to the factory guest house, and when he went to sleep, it was already past one o'clock in the morning.

The next day, I got up as usual, and Yan Hang came over with a young man early in the morning.

took him to the factory canteen and had a simple breakfast.

If you want to say that it has to be a large state-owned factory, the whole factory is like a small society.

There is all the infrastructure, although it is not as brilliant as before, but the foundation is still there.

After breakfast, Yan Hang took him to the workshop where the engine was put yesterday.

When he walked into the workshop, there were already a bunch of people standing in the workshop.

This group of people can be divided into two groups according to the color of their hair, one with gray hair and the other with dark hair.

"Everyone be quiet, let us welcome Mr. Li of the Kyushu Divine Beast, his strong support for us,

And in such a short period of time, the engine we are going to use has been built, and it is time to send it over.

Everyone applauded. ”

Just when he had just stepped into the workshop and walked in front of everyone, Yan Hang opened his mouth and said to everyone.

Everyone present applauded, and the applause was very warm.

After applauding, Yan Hang didn't waste too much time on this vain matter,

Instead, he directed the people and unloaded the engine from the van.

Eight engines are in the workshop, neatly lined up,

Everyone present was excited, and in their eyes, Li Zhenhua, who was standing beside Yan Hang, was magical.

In just such a short period of time, the other party actually made the engine,

And it's not just one that has been made, but two have been made, a total of eight units!

The arrival of the engine is just in time for them, and if it weren't for her engine, Hong Du would obviously have to buy a high-priced engine.

At this moment, Yan Hang looked at the eight engines in front of him in a daze, just because the two engines were in front of him.

When it was delivered yesterday, it was too late, and when the engine was reversed, he didn't see it clearly.

But now that he saw clearly, it was two, which disrupted his plans.

"Mr. Li, did you come up with two motives?"

Facing Yan Hang's inquiry, he said with a smile.

"Yes, two, and it also gives you a choice,

I was afraid that the engine I made would not be suitable, so I made two of them.

And Old Man Yan directly calls me Zhenhua! ”

Yan Hang smiled when he heard this, but his smile revealed a hint of helplessness.

"Zhenhua, you're really a problem, we just thought it was a problem at first,

So there is one thing to experiment with, and now there is one more engine, how should we experiment! ”

At this time, he also knew what was wrong with the other party, and it turned out that the other party was not prepared enough.

"Elder Yan, this is my fault, I should have told you in advance,

I don't know how many of you have built such a machine, if there are many, then there will be no problem!

Isn't it just a piece of flying into the sky to experiment? ”

Hearing his words, Yan Hang shook his head.

He didn't know that Li Zhenhua on the other side had made the engine out of it in this way.

"Zhenhua, this is not just a simple experiment such as installing a test flight.

There are a lot of aspects involved in this, so I'll think of a way.

Which of these two are you optimistic about? Let's test that one first! ”

After all, he didn't come from an airplane building background, and he didn't know about the test in between.

He has always followed the path of practice, and everything has been tried out by him.

But Hong Du didn't dare to be like him.

said that he was optimistic about the engine, and he didn't care about anything else, anyway, there was Yan Hang and they had a headache.

Yan Hang thought for a moment and called an old man over.

"Lao Zhou, you also saw that there are two engines on the scene, and there is only one experimental preparation we have made.

So I'll leave it to you here, and I'll go get another set of things for the experiment. ”

After Yan Hang finished explaining, he said goodbye to Li Zhenhua and left directly.

The new old man was not polite to him, and directly pulled him towards the engine.

Then, under the command of Lao Zhou, everyone at the scene moved in an orderly manner.

Putting the engine on the plane is not just about putting it on.

This has to go through many tests, and Lao Zhou first installed the engine on the test bench and tested it.

Then there was a series of tests that he couldn't understand, after all, he was just a doer,

These theoretical things are really not what he is good at.

He followed Lao Zhou's side, answering Lao Zhou's question about the engine,

On the one hand, they are also absorbing Lao Zhou's knowledge of how to build aircraft.

The two of them are like this, you learn mine, I learn yours, and the day passes quickly.

For him, the day was fulfilling, and he learned a lot of knowledge, but for Hongdu Factory, it was busy.

In the following days, the engine has been being tested.

And the next day, tests of another engine began.

Yan Hang also wanted to know which of the two engines was more suitable.

On this day, the 1.2L unit, the test was finally over, and the data obtained was gratifying.

With these data, the Hongdu plant is also going to take the next step, installation!

Not far from each other in the workshop, there are two planes parked at the moment,

These are two prototypes that will be used for verification, and the engines will be installed in a moment.

The crowd pushed the engine and walked towards a plane.

When I came to the plane, I was busy with everyone,

The engine compartment of the aircraft, which was originally empty, was filled by the engine in this way, and there was still a large gap in the cabin.

When the engine was installed on the plane, some things that did not match the motivation were changed, and the state was tuned to the best.

The plane has an engine, the plane becomes complete, everything is ready.

Now only the test flight remains, and as long as the test flight is completed, the aircraft will really be considered completed.

After another two days, the test flight of the aircraft applied by Yan Airlines was finally approved.

There were some white clouds floating in the sky, the sky was blue, and the weather was good, which was a very suitable weather for a test flight.

Li Zhenhua also followed Yan Hang to the test flight site early in the morning, and it stands to reason that this test flight is not something he can watch.

But who made him the provider of the engine, and after watching the test flight, he can also know whether the engine will be deficient.

The test pilot this time is still the previous Lieutenant Wang, who has already learned about the model in front of him after the last test flight.

Lieutenant Wang saluted in front of the temporary tower and walked towards the plane.

Everything was ready, and under Li Zhenhua's gaze, the plane smoothly left the ground and flew into the blue sky.

And in the senses of Lieutenant Wang, who was piloting the plane, this plane was obviously more handy than the last time it was piloted.

After changing the engine, with strong propulsion power, the aircraft has a qualitative leap in all aspects of performance.

Just when Li Zhenhua was still holding his head high, staring at the plane in the sky,

Lieutenant Wang's voice came from the speaker next to him.

"Tower, tower, bird application for maximum ceiling test."

Lieutenant King of the Heavens, after receiving permission from the ground, flew the plane towards higher airspace.

This time the motivation was sufficient, and the button on the instrument panel that restricted the engine was missing.

The plane flew towards higher airspace at a large angle, and the strong power carried the plane to the high altitude.

Soon Lieutenant Wang changed the plane to level flight, and this time he reached an airspace of 6,500 meters.

Once again, the plane flew in the sky for some time, doing a number of tests at this altitude.

On the runway, the plane was landing, taxied for some distance and then stopped,

The engine stopped, and Lieutenant Wang jumped out of the plane and walked quickly towards them.

I saw Lieutenant Wang standing still opposite Yan Hang, saluting him and replying.

"Report, test pilot Wang Zhifei successfully completed the task."

Yan Hang patted Lieutenant Wang's shoulder, and a bright smile appeared on his face.

"How is Wang Boy feeling this time?"

"I think it's a good feeling, it's great, it's a lot of momentum, it's not weak at all.

I think for a civilian aircraft, that's enough,

Although I haven't flown too many civilian aircraft, this one gives me the most comfortable feeling, especially the noise handling is so good. ”

Between his words, Lieutenant Wang was full of praise for the plane.

At this moment, Li Zhenhua's heart finally relaxed, and he knew that his engine had succeeded.

And listening to the test pilot, he was very satisfied with the power of the engine.

Just when he was stunned, Yan Hang walked towards him with the test pilot.

"Zhenhua, let me introduce to you, this is today's test pilot, Wang Zhifei."

After speaking, he said to Lieutenant Wang.

"I told you before that this is Li Zhenhua, the manufacturer of the engine. Let's talk first, I'll go see the plane. ”

After Yan Hang finished speaking, he walked towards the plane, leaving only the two of them still in place.

Li Zhenhua stretched out his hand to Wang Zhifei opposite.

"Hello Comrade Wang, are you satisfied with the power of the plane, do you have any opinions?"

After the two shook hands, Wang Zhifei told him his opinion.

"There's nothing wrong with the power, it's just this turbine to see if it can be redesigned.

In my driving experience, the turbo intervened a little late in the beginning!

This is the only shortcoming. ”

As for the problem that Lieutenant Wang said, he did not think about it, but this problem is not too easy to solve.

This turbo intervention hysteresis is a common problem of this device, when the exhaust gas volume is insufficient, the turbine cannot be urged, which is the main reason for the completion of hysteresis.

And this problem is not easy to solve, he has come up with a countermeasure before,

But it was going to add another device, so he didn't add anything to the engine.

He nodded at Lieutenant Wang.

"I know this problem, I will solve this problem later, and I will definitely be able to solve this later."

The two chatted about the plane for a while, and then Lieutenant Wang went to Yan Hang's side.

For a day, all of them stayed at the test flight site, and Li Zhenhua also knew how the engine was through the discussion of the people present.

During a one-day test flight, the safety of the aircraft was recognized by those present,

On the last test flight, Li Zhenhua sat on this plane.