Chapter 476

Zhuang Jianye suddenly felt that the style of painting seemed to be a bit wrong, didn't he say that the advanced light transport aircraft? How come it's about the engine and materials?

No, the rhythm has to be broken back. Otherwise, what about the new model's birth permit?

However, before Zhuang Jianye spoke, song Changzheng came to Director Zhao and asked if there were any special snacks in the cotton market. Li Fang added that he had admired the stewed mutton, spicy chicken and smoked rabbit for a long time.

Director Zhao is not a local. He didn't know so much. Naturally, he brought Zhuang Jianye over and asked him to give a good introduction.

When Zhuang Jianye looks at it like this, it's the rhythm that the three of you are satisfied with the investigation and are ready to finish it. If you talk about advanced light transport aircraft on the pole, maybe the three of you will listen patiently, but the effect will not be very good. After all, the caliber and attitude of the three of you are very important.

Yun-7 and advanced light transport aircraft are almost the same as yun-7 and advanced light transport aircraft. One word difference can determine the fate of a model. Zhuang Jianye doesn't like to screw things up because he is eager for success. Anyway, the development cycle of new models is not short. There are plenty of opportunities. It's not bad this time.

As a result, Zhuang Jianye resolutely changed from a professional aviation up owner to an excellent food blogger. He wanted to eat the characteristics of the cotton market. No problem, the arrangement was over.

A table of authentic cotton specialty, eating everyone is hearty, wait for director Zhao three people satisfaction after leaving, Zhuang Jianye this belch ready to leave by car, can not wait to get on the bus, when eating has been silent Qian Qiang suddenly clenched his teeth and asked: "Mr. Zhuang, I this time is not a mess?"

Director Zhao, song Changzheng and Li Fang suddenly shifted their focus, and then ended the investigation without any delay, which not only surprised Zhuang Jianye, but also caught Qian Qiang off guard.

As mentioned earlier, the low fuel consumption rate of D-series Turbopropellers is mainly to prove that advanced light transport aircraft can fly 5000 km.

As a result, Li Fang and song Changzheng were really surprised by the low fuel consumption rate of D series turboprops, but that's all Then there's no more.

You should know that Qian Qiang had a lot of introduction of advanced light transport aircraft behind him. When they were mixed up, they didn't say a word.

when he was eating, he was strong enough to open his mouth and be able to be filled with Song Changzheng's three large baijiu. Qian Qiang was all the stars at the moment, and it was good to remain sober. Also say that the advanced light transport plane?

Qian Qiang didn't feel that his head was his own until he had enough to eat and drink and everyone left. But it was too late, so he regretted it. If he had said advanced light transport aircraft first, how could he have said engine first?

Zhuang Jianye drank some wine, but his head didn't work. He was stunned for a moment, frowned and thought about it. Then he understood the meaning of Qian Qiang's words. He immediately laughed: "the three leaders probably think we are boasting."

"But we are not boasting. Our engines are installed on traditional models such as yun-7 and an-26. Of course, they can't achieve the subversive range because the fuel capacity of these two models is limited. However, they have studied the central wing box technology for three years, just like our d-40 and d-50. They have made a lot of achievements, at least doubling the fuel capacity It's a problem. "

If Qian Qiang's words were heard by the three people who have left, they would be absolutely shocked. D-40 and d-50 had been started three years ago. What about the core machine?

In fact, it is not difficult to understand that when the original Tengfei plant was established, the preliminary results of D-20 and D-30 were achieved, and the pre research of d-40 and d-50 began immediately.

At that time, however, the indexes of the two models did not reach such a abnormal level due to the materials and accumulation. With the gradual upgrading of Tengfei plant, it became Tengfei Aviation Manufacturing Corporation, and the original jet power office became Tengfei aviation power plant.

In order to master the core technology, reduce the cost of R & D and expand the application model, with the support and promotion of Zhuang Jianye, Tengfei aviation power plant began to focus on the core aircraft from the specific model.

However, this is not so light-weight. Without years of model development and experience accumulation, it is impossible to develop core machines.

The reason why hx-4-1 core machine can be pushed forward smoothly is based on the two mature models D-20 and D-30, and the two pre research models d-40 and d-50.

By using a method similar to the common divisor of mathematics, selecting four types of general technology, mature experience, and combining with the new aeroengine materials continuously developed by China National Aviation Corporation, the hx-4-1 core aircraft has gone through two iterations and has today's appearance.

Of course, when we paid close attention to the development of hx-4-1 core machine, the two models of d-40 and d-50, which were researched in advance, did not stop. We constantly absorbed the research results of hx-4-1 core machine and carried out a series of test experiments. There was frustration of failure, but also joy of certain data reaching the target.

Until now, some indicators are still unstable, and they are constantly testing and improving. This process is very long.Compared with Qian Qiang's engine, Lin Guanghua's central wing box is much smoother. Originally, this field was not involved by Tengfei airlines, but one day he suddenly found that a single wing central wing box was added to the graduation design of a pilot research institute in the training center, which made gratifying changes in the parameters of the aircraft. This attracted Lin Guanghua's attention.

Then this product shamelessly digs the trainee to the take-off factory at that time, and studies the central wing box with him.

At the beginning, the idea was very simple, that is, to use it on UAVs, because the central wing box can not only strengthen the wings on both sides, but also serve as a storage device for the fuel tank to increase the fuel capacity of UAVs, thus increasing the range of UAVs.

However, when the UAV starts to be replaced, the fuel economy will go up, and the range will go up naturally. Although the central wing box increases the fuel capacity, it also increases the total structure. It is a chicken rib for the UAV, and the matter will be over.

After that, Tengfei Airlines was ready to march into manned aircraft. It was ready to make a breakthrough from Yun 5, and then Yun 6, which gave Lin Guanghua more and more room to play. Therefore, in a Yun 6 plan, he added a central wing box.

First, the manufacturing process of yun-6 is honeycomb structure, which can solidify the fuselage as a whole. With the ability of Tengfei airlines, it is not enough to leave a ready installation position for the central wing box. Second, yun-6 is a small aircraft. Adding two support beams on the fuselage can strengthen the wing. It is simple, effective and cost-effective, which is much more convenient than using the central wing box, so Can only give up again.

It was not until the advanced light transport aircraft program was launched in Tengfei Aviation Manufacturing Corporation, and the ultra long range made the ordinary structure unable to meet the index requirements, that Lin Guanghua sent out the central wing box which had been studied for many years.