"So, I think, you first mature the power of Yun Wu, don't be so presumptuous in terms of the maximum ceiling, it's good to still maintain it at around four thousand meters, as for the rest, it's not too late to mature the technology in the future, it's not good to do it in one step, in the words of you young people, the step is too big, and it's easy to pull the egg." ”

Seeing that Zhuang Jianye had been frowning and not squeaking, Ding Laixiang persuaded him again, then looked at his watch, and then changed his words: "I have an academic meeting in the afternoon, so I have to rush back, you should think about it carefully just now." ”

After speaking, Ding Laixiang didn't wait for the two to react, took off his glasses, and strode towards the outside of the factory, Lin Guanghua looked at the mentor who was far away, and then looked at Zhuang Jianye, who was a little stunned.

Hurriedly called: "Professor, wait, I'll send you." So saying, he trotted after him.

Zhuang Jianye stood there for a long time, and I don't know how much time passed, Ju Tao came over from behind and asked, "Why are you here?"

Zhuang Jianye came back to his senses and saw Ju Tao and a few students smiling uncontrollably, obviously the feeling in the cabin just now made them very excited.

"Ah, I just discussed something with Professor Ding. ”

"Oh...... What about Professor Ding? Do you want to go to dinner together, I'll arrange it!" Ju Tao looked very generous.

Zhuang Jianye smiled and shook his head: "No need, Professor Ding still has an academic meeting in the evening, and he has already left, I have to go to a few workshops to see later, and I will say hello to the canteen later, you can just go over." ”

"Hey~~ Don't be so troublesome, the students are doing a good job today, promise them to invite them to dinner, okay, you are busy with yours, don't worry about us. Seeing that Zhuang Jianye was busy, Ju Tao was very interested in not bothering anymore, and waved his hand behind him: "Let's go, children, let's go eat the most famous fish hot pot here." ”

The students behind him applauded, and walked towards the outside of the factory with Ju Tao in their arms, laughing and laughing along the way, so comfortable.

"Isn't it envious?"

Seeing Ju Tao and a group of people walking away, Lin Guanghua, who saw Ding Laixiang back, couldn't help but ask, Zhuang Jianye nodded very frankly: "I used to want to live like this, eat and drink without worry, and still be able to hug each other, and the most important thing is that there are so many beautiful girls around you." ”

Before the words fell, he looked at Lin Guanghua: "How is it?

"Of course, you don't have to worry about so many things every day, and you don't have to spend so much brain cells, look at ......" Lin Guanghua said, lowering his head and pointing at the slightly thinning hair on the top of his head: "It is estimated that it will become the Mediterranean Sea in less than forty, and Tang Lili still laughs at me all day long, and I didn't even get a model that can sit on people, and my hair was exhausted." ”

"Don't worry, when you become bald, you will also get stronger. Zhuang Jianye laughed and teased.

"I hope so. Lin Guanghua nodded, then took out a pack of cigarettes from his pocket and handed it to Zhuang Jianye: "Do you smoke one?"

Zhuang Jianye took it very tacitly, stuffed it into his mouth, and then skillfully reached out to help Lin Guanghua light the cigarette when it was on fire, and the whole process was like an old smoking gun for many years, and he couldn't see the slightest jerkiness.

But in fact, the entire Tengfei factory knows that their Zhuang Zong does not smoke on weekdays, unless he ......

"Do you want to continue?" Lin Guanghua, who had lit a cigarette by himself, suddenly smiled and asked seriously.

Zhuang Jianye smiled bitterly: "What if you don't continue? Do you want to kill you with the cave factory? Regardless of the rest, we don't have an advantage in terms of products alone, and we can't compete with others if we want to." ”

When Lin Guanghua heard this, he wanted to say something, but in the end he blocked all the words with a cigarette holder, this is the reason why he gave Zhuang Jianye cigarettes, others don't know, but he Lin Guanghua knows that in order to improve the luck 5, Zhuang Jianye is not much less worried than him.

In fact, it is true that if Zhuang Jianye wants to take off the factory and completely become a formal aircraft manufacturer that produces conventional aircraft, he must have a model that can be used.

Therefore, he chose the Yun 5, not only because the superior department of this model was open to the Tengfei factory, but also because the Tengfei factory had many practical modification plans.

The most important thing is to pay attention to the characteristics of the low difficulty of modification and great application potential of the Yun-5.

Based on this, Zhuang Jianye believes that Tengfei Factory can make a super upgraded version on the basis of Laoyun 5, so as to obtain the Qinghai-Tibet Plateau and the two high-altitude areas of northern and southern Xinjiang medium and short-distance passenger and freight markets.

Yes, Zhuang Jianye did not regard the improved Y-5 as a breakthrough test model to solve the problem of whether there are manned aircraft in the Tengfei factory from the beginning, but as a product.

The main reason for this is that these two areas are vast and sparsely populated, and the transportation facilities are still extremely underdeveloped, so that it is difficult to transfer materials and personnel in and out in time, resulting in a very lagging economic development.

Take the border region as an example, the products of the north and south of Xinjiang are very different, the fruits, cotton, and meat of the first need to be transported to the north for processing, and then the railway trunk line into the east can be transported to the eastern provinces for further processing, and the urgently needed medicines, salt and other necessities also need to be supplied by the north of the country.

The problem is that a mountain range in the Tianshan Mountains in the border region separates the north and south of Xinjiang, and there are very few roads that can be connected, and the traffic conditions are very poor.

Of course, for so many years, the local governments of the border regions have not thought of using aircraft to solve this problem, the problem is that China cannot provide universal aircraft capable of flying over such high-altitude mountains in the sky; if they seek foreign products, the asking price is too expensive, and the local government cannot afford it at all, so they have no choice but to use convoys to transfer them back and forth, and the personnel and materials that do not require high timeliness are even counted.

If you have high requirements for timeliness, you really want to cry without tears when you look at the vast Tianshan.

However, if there is a general aviation aircraft that can easily fly over the Tianshan Mountains and Mountains, the general aviation aircraft that communicates the north and south of Xinjiang will be different, and the personnel and materials with high effectiveness requirements can easily be navigated in the north and south of Xinjiang, so as to promote the flow of personnel and materials in the north and south of Xinjiang.

This is especially true on the Tibetan Plateau.

If we include the supply and transportation of border guards and troops stationed in Xinjiang and Tibet, the scale of the entire new aircraft type is considerable.

Because of this, the improved Yun5 of the Tengfei plant must meet the needs of the plateau, the maximum ceiling must be doubled, and the power must also be greatly upgraded.

After all, the average altitude of the Qinghai-Tibet Plateau is 4,000 meters, and the highest ceiling of Laoyun 5,300 meters and the five piston engines cannot meet the requirements of these two regions.

Therefore, Zhuang Jianye positioned the improved Y-5 as a comprehensive passenger-cargo dual-purpose general aircraft at the beginning, not only to improve the engine capacity, but also to ensure the safety of personnel flying at high altitudes, so turboprop and pressurized cabin are inevitable standard configurations, the two lack of one, what is the difference between the old Yun V?