Chapter 159

Wind tunnel group!

It's hard for other industries to figure out what that thing is. The problem is that they all use electricity, and the wind tunnel group in cotton city is one of the largest power users in the province.

Even a few of you here have undertaken the maintenance and repair work of the wind tunnel group circuit in cotton city before. You know that it is a top-level scientific research institution and has close contact with the military and other national scientific research institutions. What you get is high-end aircraft and rocket, which is not available to ordinary people.

So when I heard that the wind tunnel group of cotton could be used by the 23rd branch, the leaders of these power transformation companies were not calm. How strong the background is to do this? It seems that the UAV in front of us is reliable!

If other people are just shocked, Zhang Ping should be shocked. He has been in Yonghong factory for nearly two months for the purpose of towing the model aircraft. He knows something about the inside story of aircraft development. During that time, he heard a designer from Yonghong factory's Technology Department say that if he wanted to solve the problem thoroughly, he had to use the wind tunnel to simulate the meteorological characteristics of linxinghe.

Unfortunately, although Yonghong factory is an aviation factory with more than 10000 people, it is not easy to approve the wind tunnel group test.

Zhang Ping was very disappointed at that time, but he couldn't help it. As the saying goes, every other line is like a mountain. He didn't have any moves.

How could a branch of Yonghong factory have such strength? Wait a minute ~ ~ I seem to have heard it from somewhere. The 23rd branch seems to be different from other branches of Yonghong factory. It seems to be more closely related to the local area. En ~ it seems that what I said is true!

Lin Guanghua looked at the leaders of the power transformation company whispering in surprise. His straight back was up again. It was good. He had a long face. He thought that Lao Zhuang Jia's words were superfluous. It seems that the people at the power port are very professional.

So he coughed and pointed his extender to the wing in the center: "so we finally determined the layout of our TY-1 UAV Based on the data and many tests. The optimized flat wing not only strengthened the structural strength of the aircraft, but also helped to improve the lift, reduce fuel consumption and increase the space time; at the same time, we put the The tail crossbeam is combined with the wing to form a double vertical tail, which can stabilize the fuselage and increase the maneuverability of the aircraft.... "

This paragraph is the key point of Lin Guanghua's presupposition, so he works very hard. He wants to take out all his ideas and experience in designing this UAV, so as to win the recognition of the people present.

Unfortunately, it's too professional. For a while, the lift to drag ratio and Bethlehem formula, not to mention all the leaders of the power transformation company, even the 23rd branch of the power plant, were also dizzy. Finally, Zhang Ping looked around the hypnotized venue and carefully interrupted Lin Guanghua's introduction: "Er Engineer Lin, can you tell us how long the guide rope your plane can pull first, and how many times it can pull at a time? As you know, these two are the most important parts of our linxinghe power transmission and transformation project. "

"Ah ~ ~"

Lin Guanghua, who hasn't had enough fun, is a bit disappointed by this question. He hasn't mentioned the wind tunnel test research of the most important straight wing behind him. You know, that's the research topic of his graduate students, the core thing.

However, the disappointment is the disappointment. The customer has to satisfy his request first. He didn't say it this time. He'll talk about it next time.

So Lin Guanghua nodded: "due to the adoption of the 10 hp piston engine developed by Xi'an airlines and the unique structure of our aircraft, the loading capacity of TY-1 UAV can reach 58 kg, that is to say, it can pull 16 to 2000 meters of guide rope under normal weather conditions."

"Forest worker, what you say is true?"

Zhang Ping was immediately excited when he said this. If the plane in front of him really has a towing distance of more than one kilometer, it will really solve a big problem for them.

It is necessary to know that the cable crosses the fixed tower on the opposite bank of Linxing river. Because of the terrain, it is nearly one kilometer away from the river bank, so pulling the cable to the opposite bank only solves part of the project, and the rest depends on the construction workers to pull the heavy cable along the mountain road to the fixed tower nearly one thousand meters away, and then carry out the erection operation.

This process is both time-consuming and labor-consuming, and it is also worrying for the whole substation company. Unfortunately, this difficulty can only be solved in the back row before crossing Linxing river. After all, it takes a lot of time and effort. Unlike Linxing River, it can't be solved even with great efforts.

Now it is said that TY-1 UAV can pull more than 1600 meters, which not only solves the problem of crossing Linxing River, but also solves the subsequent dragging cable.

In this way, linxinghe power transmission and transformation project immediately greatly reduced the construction period, how to keep Zhang Ping and others excited.

However, when Lin Guanghua heard the speech, he suddenly became very embarrassed. When Zhang Ping saw this, his heart suddenly sank. In secret, it was not engineer Lin who boasted.

At this moment, Zhuang Jianye, who had not spoken for a long time, suddenly said: "well, manager Zhang, our plane is OK, but our remote control device has average performance. In theory, it can only work within the range of 2000 meters. In actual test, it is found that the signal will weaken when it exceeds 1500 meters, so..."Zhuang Jianye didn't say it, but he laughed at the crowd apologetically. The meaning is very simple. We can't help it if it's more than one kilometer away.

As a matter of fact, the 23rd branch was able to use the wind tunnel to build the aircraft platform, but the remote control device was a bit blind. It was impossible for the company to buy an imported model aircraft remote control device. Although it could make the aircraft fly, its real performance could not fly.

It's just like a first-class engine equipped with an n-stream gearbox. No matter how powerful the power is, it can't be transmitted. It's embarrassing to think about it.

Lin Guanghua was generally satisfied with the TY-1 UAV, but he was very worried about the remote control device, and felt that it was the biggest failure of his design and development of this aircraft. Therefore, when Zhang Ping asked him, Lin Guanghua had some difficulties.

Fortunately, Zhuang Jianye was cheeky and made a supplement, which relieved Zhang Ping and others. However, he was not disappointed. Instead, he asked, "can it be done within 1200 meters?"

"If visibility permits, no problem!" Zhuang Jianye replied.

"That's good, that's good!" As soon as he heard that one thousand and two meters was ok, Zhang Ping was happy again. The distance of the fixed tower was only one kilometer. As long as they could use it, they would be very satisfied. As for one thousand and two thousand, they were not as good as chicken ribs.

So he laughed and asked a key question: "how much is your plane?"

"Sixty five thousand!" Zhuang Jianye is not ambiguous either. What he reported was a crackle.

But when the leaders of the power transformation company across the street heard this, they took a breath of cool air. We should know that at the moment when 10000 yuan households are scarce, 65000 is a sky high price.