"Brother Kai, I'm here..."

"Brother Kai, let's gather here. What's the matter?"

"Brother Kai, are Lao Wang and the others crazy? We can take the train back by ourselves, and it's a waste to take the plane..."

At Capital International Airport, a group of young people wearing uniform red down jackets, with the words "Dongfeng" embroidered on their chests gradually gathered in the waiting hall, which attracted many passengers who were flying to stop and watch.

The uniform clothing is too sexy.

And it is a down jacket that is expensive.

Liang Yao and others widened their eyes, but they didn't expect Xie Kai to be the leader of these young people.

"Everyone pays attention to discipline. We represent the image of the unit outside!" Xie Kai rectified the discipline. Seeing these familiar faces, he went to college for half a year, but he was still childish but calmer.

Then he pointed to Liang Yao and others behind him, "Familiar with them, these are classmates in my dormitory and ours..."

"Hello, my name is Mao Wenfeng, the aircraft design of the University of Aeronautics and Astronautics, just call me Maozi." Maozi took the initiative to extend his hand to Liang Yao.

Others also started to greet each other. When Xie Kai didn't say anything before, almost no one paid attention to Liang Yao and others.

The children of 404 have always been very xenophobic.

"Okay, everyone has expired. Maozi, gather the team and prepare to board the plane." Xie Kai shouted to Mao Wenfeng, who was talking to the people around him.

When the Russian went to the University of Aeronautics and Astronautics, Xie Kai was a little surprised at first. He thought that he had gone to Huaqing, so he didn't think it was strange.

In theory, all the original regrets will never appear again.

"Which flight is on? The radio did not notify which flight was boarding. Besides, we did not change the boarding pass..." Liang Yao and his men saw that the others were lined up to the boarding gate and asked Xie Kai in a low voice.

The Russian pulled him and said, "Just follow us. Let's take a plane, we don't need a ticket, we have a plane ourselves."

"real?"

Liang Yao couldn't believe it at all.

If you fly a plane, you will get old nostril money.

At the boarding gate, Mao Wenfeng and Wang Xiaole counted the number of people, then watched them get on the shuttle bus to ensure that their people get on the plane and that no one outside gets on the plane.

"Yun Shi?" Liang Yao asked.

He had heard of the name of Yunshen many times, but he had never seen it before, let alone being able to sit on it.

Now I'm just below Yun Ten, and I'm a little tragic.

"Of course! Our unit made this is the second prototype for flight." The Russian said proudly, "Domestic! Large aircraft!"

"Boss, this plane is really made by our country? Isn't it that our country cannot make it?" Cheng Xiaofeng asked.

He didn't know much about the plane, but there were many reports in the newspapers about the YTN project.

Later, there were basically no reports on Yunshi in the newspapers.

Originally, I could have asked Xie Kai everything, but now, I found that Xie Kai’s identity was not as simple as they thought, so I felt embarrassed to ask Xie Kai again. Didn’t I see Xie Kai thinking about things along the way?

"Who told you that our country cannot produce it? Although there is still a certain technical gap compared with foreign level, and even the service life is much worse, all the parts of this aircraft are made by our country's units themselves." Mao Wenfeng proudly introduced the situation of Yunshen. "At the beginning, the country dismounted Yunshen because it could not afford to use it for subsequent improvements and test flights, our unit took over and continued to test flights and improve them. The third aircraft can fly, and it is estimated that it will be ready for production..."

Others listened carefully.

This unit is likely to be their work unit for the rest of their lives in the future.

Until they got on the plane, more than fifty people were on the plane and there were a large number of empty seats. Liang Yao and others had not calmed down.

Feeling that Yunshi is getting faster and faster on the runway, he shook slightly, looked outside, and had already left the runway and flew towards the sky.

Liang Yao and others were taking a plane for the first time. They were very nervous and looked at the people around them and forced to calm down.

Even if he had countless questions, he couldn't ask.

What is the purpose of Xie Kai and their unit?

Could it be that the mystery of this unit is really revealed to them now?

According to Liang Yao’s understanding, it was impossible for Hongqi Machinery Factory to let them know the real situation while they were still in school.

Confidential units have the principle of keeping confidential units.

Until the plane landed, Liang Yao didn't understand what the other party's purpose was.

"Isn't this a civil aviation airport?" Liang Yao came down and saw that the scene around the airport was not like the Capital International Airport. There were several larger aircraft around him, but there were no signs.

"Qinfei's test airport." Xie Kai explained to everyone, "This time our unit is organizing everyone to learn about some related industries of our unit, so that everyone can have a clear goal when learning."

"Really?" Everyone was surprised.

Liang Yao and others look at me, I look at you, I don’t know what’s going on.

"Tonight we will rest at Qinfei Guesthouse. Our Yun-Sen design team and assembly workshop are here. We will visit the aircraft design process, testing process and assembly production line tomorrow, and visit the large press workshop the day after tomorrow..." Xie Kai gave a brief introduction to everyone's itinerary in the past few days, "Okay, get on the bus."

"You are leading the team in person?" The vice president Cheng Bushi came to pick them up.

"Mr. Cheng, why are you here?" Xie Kai hadn't seen Cheng Bushi before, but he only saw a small bus.

"Tell you about your plane," Cheng said with a grin from time to time. "The assembly has been almost completed, but the layout inside is based on the standard seats of the passenger plane or the private plane. We are a little confused and want to ask your opinion."

Xie Kai was stunned.

He even forgot that the Yunshi that was being produced was taken from Kaisheng Company.

At the base, Yang Qian did not agree to the special budget and did not allocate funds to produce the third test flight.

The second flight of Yunjin has been more than 400 hours so far. According to the original estimate, the safe flight time is only more than 500 hours.

The newly produced one is probably not much stronger.

"What is the expected flight time?" Xie Kai asked.

Cheng was a little embarrassed from time to time, but he had to say, "It takes about a thousand hours. After 800 hours of flight time, it will have to undergo an overhaul. As long as the large press is put into production, the forged frame beam will be replaced, and the service life will be increased to at least 3,000 hours."

"Then follow the private jet. At that time, the aircraft will be used as a sample to show our customers. Many customers need private jets." Xie Kai said.

Xie Kai thinks that Yunshi's private jet is quite promising.

However, the current safety performance is really unreliable.

He was embarrassed to sell it to others for hundreds of hours of safe flight time.

"By the way, since it is a private jet, you must be careful in the interior. There is also the layout inside... Private jets do not pursue load loads. The comfort of riding must be taken into consideration."

Cheng nodded from time to time.

As a large passenger plane, Yun-10 is not very suitable.

However, as a business jet, it still has great prospects.

"What else is there?" Xie Kai asked when he saw Cheng want to speak from time to time. "Mr. Cheng, if you have any questions, just raise them directly. We must improve the Yun-10 model faster and develop new models at the same time."

Although Yunshi is a large 100-ton aircraft, it is relatively embarrassing.

The world-class large aircraft has a maximum take-off weight of several hundred tons and a load capacity of more than two hundred tons...

China still has a long way to go from the world's top spot.

"Engine. When we started Yun-10, we introduced a total of six engines from the United States. If we continue to produce, the engine would not be enough." Cheng explained from time to time, "The domestic turbofan eight has always been afraid to use it because of manufacturing defects in blades and other products."

"The large press will be put into production soon." Xie Kai sighed.

Whether it is the main structure of the Y-Ten or the core components of the engine, they are waiting for the large press.

"A new one will be produced after the New Year, either you can only use the imported engines in the front. In that case, you have to wait until the Yunshi Fly to be installed before you can install the engine... or you can only use the domestic turbofan eight..."

The domestic turbofan 8 has almost reached a stagnation period in recent years.

Although the test work was basically completed before, there have not been many flight tests yet.

The engine is the heart of the aircraft.

Yun-10 uses four engines. If all domestic engines are used, once there is a problem, it will have a serious impact on the development of the entire aircraft project.

"Let's talk about it then. The production of new and improved aircraft models and safe flight are the first elements. The engine must also be tested through other aircraft first..." Xie Kai frowned even tighter.

The engine matter is a flaw.

The power plant has been working on problems.

"We suggest that we can continue to introduce several American engines..." Cheng said from time to time.

"What is Lao Zheng and others' attitude?" Xie Kai asked.

Cheng smiled bitterly from time to time and refused to speak.

If Zheng Yucheng and others could agree, would he tell Xie Kai about this?

"For details, let's talk about the situation tomorrow." Xie Kai sighed. The problem of heart disease in the aviation system cannot be solved so easily.

If it really doesn't work, you can only introduce engines from abroad for emergency response.

Although the turbofan-8 engine had been tested for dozens of hours on the Boeing 707 before, it does not mean that the turbofan-8 can be fully used in the Y-10 flight.

Whether it is the Boeing 707 or the Y-10, it adopts a four-engine structure.

During the previous test flight, there was only one turbofan-8 installed on the Boeing 707 used for flight tests. Even if the car was stopped, three engines provided sufficient thrust to keep the flight stable.

"Mr. Ma also feels that if you want to continue the YTF, you have to introduce the engine from the United States first. Wait until our engine performance meets the needs, and then replace our domestic engine..."
Chapter completed!