Set sail1992

Chapter 763 We will have our own satellite too

Coordinating with the Air Force, the civil aviation management department, and various airports in the province, and even reporting the plan to the province and asking for instructions, it will take a month or two, that is to say, the preparation work Well done, the supporting comparison software developed by Huateng Industrial Group is almost completed, and the time is just right...

Aware of this, many leaders have smiles on their faces: It doesn't delay things at all.

Some leaders also expressed emotion: "Speaking of which, foreign countries use resource census satellites to conduct censuses of their own country's land resources. We... oh..."

As soon as these emotions came out, many leading comrades and experts immediately echoed, feeling that our country's resource census methods are really too backward compared with other advanced developed countries abroad.

Hearing these words, Zhang Qihang couldn't help frowning.

To carry out resource census, the best choice is of course to use resource census satellites, but the problem is that China does not have its own resource census satellites, so since the mid-80s, our country has adopted three methods for resource census work:

The census is carried out manually in some key areas by "stepping on the spot";

Large-scale and large-area resource census work is carried out by means of aircraft and air flight;
The third is supplemented by the purchase of services from foreign commercial satellite service companies.

Such a three-pronged approach, although the efficiency is not very high, and the cost is not cheap, but it basically guarantees the accuracy of the resource census, but the attitude of some leading cadres makes Zhang Qihang a little unhappy.

But even if he was unhappy, Zhang Qihang would not openly slap these leaders in the face, he changed his way to express his attitude...

Looking at these leaders who were complaining, Zhang Qihang said with a smile: "Leaders, I have to tell you a piece of good news. Our country will soon have its own resource survey satellite."

"..."

As soon as Zhang Qihang's words fell, the scene fell into silence. After a while, an expert from the provincial agricultural authority asked Zhang Qihang in excitement and disbelief: "Comrade Zhang, what did you say?" Is it true? Our country will also have its own resource census satellite?"

Tucao returns to Tucao, who doesn't want their country to be strong, powerful, and technologically advanced?Therefore, following this comrade, other leading comrades and experts excitedly asked Zhang Qihang...

"That's right, is this true or not? Why don't I know the news?"

"Comrade Xiao Zhang, is your news reliable?"

…………

Zhang Qihang didn't expect the reaction from the leaders and experts to be so intense, and he felt a little embarrassed for a while, and quickly explained: "This news is true... Well, leaders, you have also seen that our group and Many domestic scientific research institutes and universities have cooperation, and these scientific research institutes and universities not only cooperate with our group, they also have a cooperative relationship with the Aerospace Science and Industry Corporation. I heard the news from them.

As for why our country develops its own resource census satellite, on the one hand, using a dedicated satellite to conduct a census of domestic resources has better results and higher accuracy;
On the other hand, to put it bluntly, he was also forced out.Everyone knows that as long as foreign countries are involved, and it is such a business service that we cannot do by ourselves, the price will definitely not be cheap, especially the use of foreign commercial satellites to conduct a census of our domestic resources. The price is not only expensive, but there is also a potential risk of leakage.

Therefore, our country has put the research and development of resource census satellites on the agenda. The news I heard is that it is expected that our country will be able to have its own resource census satellite by the year after next year, that is, in 1998—as for the specific satellite launch Time, I don't know. "

That's it!

Hearing Zhang Qihang's explanation, everyone nodded: I said why I didn't know about our country's launch of a resource census satellite. The original reason is here, so it makes sense.

………………

While the testers were pushing the drone out, Zhang Qihang introduced to the leaders and experts: "Leaders, today's test flight is the first test flight of our drone. The flight performance test shows the image transmission performance of our UAV within a range of 50 kilometers to the leaders. If you have any dissatisfaction with the leaders, please forgive me."

"It's ok."

"We can understand."

"It's the first test flight, we all know that safety comes first..."

…………

Hearing Zhang Qihang's words, all the leaders and experts expressed their understanding, and some experts asked Zhang Qihang curiously about some problems they observed about the drone...

"Comrade Zhang Qihang, I think the landing gear of your drone is not retractable?"

Zhang Qihang nodded: "Yes."

"Then why isn't it designed to be retractable?" The comrade followed up and asked: "The non-retractable landing gear will bring relatively large aerodynamic resistance during flight, right?"

Faced with this problem, Zhang Qihang didn't worry about it, and explained seriously: "This leader, the reason why our experts designed the landing gear of this drone to be non-retractable is after comprehensive consideration. One is that compared with the logic of the non-retractable landing gear, the structure of the retractable landing gear is more complicated, and the weight of the whole system is heavier. For our UAV with a take-off weight of only 500 kg, it will be retractable. Changing the retractable landing gear to a non-retractable landing gear can save at least 10 kilograms of weight, and this part of the saved weight can be used as a load;

Secondly, as you can see, the fuselage of our aircraft is only a little bit big. If the landing gear is designed to be retractable, there must be room inside the fuselage, which again takes up valuable inside the fuselage. space;
Again, another very important reason why it is not designed to be retractable is that the flying speed of our UAV is relatively slow, the cruising speed is only 180 kilometers per hour, and the overall aerodynamic force of the exposed landing gear The resistance is not that great... The cruising speed of the helicopter can reach more than 260 kilometers per hour, but you can see that the landing gear of almost all helicopters is not retractable. "

There is actually another reason why the landing gear is not designed to be retractable, and that is the prototype of this drone: the ASN-206 drone does not have a landing gear at all. For the sake of reducing research and development costs, directly Designing the landing gear to be non-retractable is the simplest and most direct way—a few years later, isn’t the landing gear of the famous Rainbow-3 also non-retractable, and its cruising speed has exceeded 240 kilometers per hour.

"I see!"

The leader who originally thought that it was inappropriate for Huateng Industry not to design the landing gear as retractable, nodded repeatedly: "So there are so many considerations, I have learned and learned..."

Zhang Qihang explained with a smile: "In addition, because our UAV adopts a design with straight wings and a large aspect ratio, and the fuselage is very light, the requirements for the take-off and landing site are very low, and the take-off distance is only 200 meters away. meters, it only takes 180 meters to land.

In addition, this aircraft has very low requirements for take-off and landing sites. It does not even need a professional airport. It only needs a flat grass field to take off and land. If there is really no suitable site, in extreme cases, it can even use missile-like The launch method is to install the drone on the launch rail and use the rocket booster to boost the take-off. "

Hearing Zhang Qihang's words, the leaders and comrades around nodded in admiration. Everyone felt that the deployment and launch methods of this aircraft were really too flexible.

………………

Since the technology of the entire set of drones is imported from Aisheng Technology, it is naturally impossible for the ground control center to directly use an ordinary civilian TV and A civilian video player would do, but a decent professional drone ground control station.

Looking at all kinds of information displayed on the screen of the console, the expressions of the leaders began to become serious, and as the inspections of the drones were completed one after another, the plane officially taxied and took off, watching the drone pass All leaders and experts involuntarily stared at the clear images sent back from the radio and television system on the man-machine: clear!It's really too clear!

The leaders who had doubts about Zhang Qihang's words before, after seeing the picture quality sent back by the drone, couldn't help but exclaim...

"Too clear."

"Yes, Comrade Zhang Qihang said before that the clarity of their image transmission system can be compared with that of closed-circuit television. I still don't believe it, but looking at it now, why do I think it is clearer than the closed-circuit television at home? "

"You also said that it's really hard to say who knows better about this clarity..."

…………

The leaders talked a lot, but in general, the leaders and experts from the three departments expressed satisfaction with the performance of the drone of Huateng Industrial Group, and gave considerable affirmation. , this drone is indeed sufficient to meet the requirements of the resource census.

The more impatient leader asked Zhang Qihang: "Comrade Zhang Qihang, I have seen the performance of your image transmission system, but when we conduct a resource survey, we use the on-board camera to record the image data into the video tape. Is the image on this video tape so clear?"

Regarding this question, Zhang Qihang nodded affirmatively: "Leaders, the drone we just took off has a video tape on it, and our camera is refitted with a professional camera, which is second only to broadcast cameras. The quality, I guarantee that the video it took is definitely not inferior to what we see now..."

"Comrade Zhang," before Zhang Qihang finished his sentence, a leading comrade pointed to the screen and said to Zhang Qihang, "Look at that piece of green over there, if I'm not mistaken, it should be a piece of winter wheat, right? Can you Let the plane fly over and take more pictures of the winter wheat?"

"No problem at all."

Zhang Qihang nodded, and at the same time patted the drone operator on the shoulder, signaling him to operate the drone to take a picture of Dongmai.

Following the actions of the operator, the UAV in the sky flexibly adjusted its course, and began to circle and shoot over the winter wheat field. Looking at the clear image displayed on the screen, several members of the agricultural department Experts can't wait...

........................

As the first test flight, there is really nothing to say about the whole test flight process, but the leaders and experts of various units in the province who came to visit the first flight of Huateng Industrial Group's first fixed-wing long-endurance UAV are the focus of concern Not this one either, what they want to know most is the clarity of the recorded videotape.

As soon as the drone stopped on the runway, a group of experts swarmed up and asked the staff to take out the video tape, then impatiently found a video tape player and TV, and pointed at the video...

"I think the picture quality is okay."

"What is it? What else can you ask for with such picture quality?"

"I think it's very good."

"I also think there is no problem, but the comparison software developed by Xiao Zhang and the others has not been completed yet, so I can't visit it now, which is somewhat regrettable."

"I'm really sorry to hear you say that..."

"By the way, speaking of it, do you know how the Huateng Group charges?"

At any time, money is a relatively sensitive topic. When someone mentioned this matter, someone next to him immediately said: "I really don't know, Lao Zhao, do you know?"

"I'm not very clear either." The comrade known as Lao Zhao shook his head: "Our unit is not breathable."

"Our unit didn't breathe..."

…………

The atmosphere at the scene became weird: okay!Comrades from the agricultural department, forestry department, and water conservancy department, no one knows how Huateng Industrial Group charges for this drone resource census?
But soon, everyone tacitly kept silent on this issue—they were all old comrades who had worked in the organization for many years. Who didn't know that if the leader didn't talk about this issue, there must be a reason for not talking about it?

At the same time, while the leading comrades and experts of the three departments were pointing at the video tapes, the staff who had just inspected the drone excitedly ran over to Zhang Qihang and Sergey Izotov reported: "Mr. Zhang, Mr. Izotov, we have just completed the inspection of the drone. After this test flight, the drone did not find any abnormalities. All systems are running well and the working status is normal. The test flight was a complete success!"

Hearing this, Zhang Qihang immediately extended his hand to Sergey Izotov, and said enthusiastically, "Sergey, congratulations!"

"Ha ha……"

Holding Zhang Qihang's hand tightly, Sergei Izotov's face was full of red: Sergei Izotov felt that he was worthy of being able to engage in his beloved aerospace work in the last stage of his life!

(End of this chapter)