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After listening to Xiang Shixiong's words, Wang Bin thought about the performance of his glass.

Indeed, as Xiang Shixiong said, if the fuselage of this drone really uses this glass, as long as the engine is strong, it is not impossible to reach the speed of Mach four, but the fuselage of the aircraft at this time The temperature will also rise to the limit that this glass can withstand.

And this speed can only be achieved at an altitude of more than 10,000 meters. If the altitude of the drone is less than 10,000 meters, then flying at this speed is only the temperature generated by the friction between the glass and the air. It will exceed the temperature limit that their glass can withstand.

Of course, if the speed is below Mach 4, the high temperature resistance and other properties of this glass can still be eaten up.

So Wang Bin said: "It is true that if our glass is used as the fuselage, the speed of Mach 4 at high altitude is not a problem. Even at low altitude, the speed of Mach 3 can still be tolerated."

"The specific data of our Xifei scientific research personnel have been calculated, and it is absolutely not a problem. The biggest question now is whether or not Tiangong Technology is capable of using this glass to make this drone body. .

After all, the fuselage of this drone is not pieced together using flat glass. Take the wing of this drone as an example. The wing is an integrated wing, which must be completed at one time during the production process. At the same time, there must be no deformation at all. Otherwise, the UAV will easily lose control during the flight, especially during the high-speed flight.

In addition, there is the segmented part of the fuselage, which is very technically difficult. The UAV fuselage is required to be segmented, without any thorns on the surface, and without any protrusions, which can reach a speed of Mach 4. A little glitch on the aircraft may cause problems with this aircraft.

The last part is the nose and tail part, and there can be no mistakes..."

With the introduction of Xiang Shixiong and these two engineers, Wang Bin has a basic understanding of the technical difficulties in manufacturing the fuselage and wings of this drone. At the same time, he is also thinking about how to do it. Solve these technical difficulties.

After Xiang Shixiong and the others introduced all the technical difficulties of this drone fuselage, Wang Bin fell into thinking. The manufacture of this drone fuselage is a very big challenge for Wang Bin.

The first is the thickness of the fuselage glass. According to their previous introduction, Wang Bin believes that the thickness of the fuselage glass of this drone should not be too low, at least not less than one millimeter.

Otherwise, when the aircraft is flying at high speed, the heat generated will definitely make the internal parts of the drone overwhelmed. After all, the thinner the original thickness, the worse the insulation performance, so I want to ensure that the internal zero For the safety of components, the glass must be at least one millimeter or more, preferably two millimeters thick, but in this case, compared to a millimeter thick or even thinner glass, the weight will definitely be more than doubled. The overall performance of the machine will also have a significant impact.

But Wang Bin suddenly thought that in fact, one millimeter thick is enough, and there is no need to increase the thickness of the glass, because in terms of heat insulation, besides the glass of the fuselage itself, XAC will definitely use other Technology to increase the thermal insulation performance, such as coating a thermal insulation layer on the fuselage and so on.

After a long time, Wang Bin said to them: "General Manager Xiang! As for the fuselage of this drone, Tiangong Technology can try it with glass, and please don’t have too much hope. We Tiangong Technology Although this kind of glass is advanced, we really haven’t thought about using this kind of glass to make the fuselage of aircraft. No one knows whether it is feasible. The most important thing is that although this drone is not big, there are many fuselages. The structure of the place is a bit complicated!"

"Yeah! I know, in fact, we are still holding the attitude of giving it a try. After all, we use pure glass to make the fuselage. This is the first attempt! As long as you try your best." Xiang Shixiong said.

Then Xiang Shixiong finally opened his briefcase and took out a document and said to Wang Bin: "Mr. Wang, these documents are the glass data we ordered this time. Please keep them. At the same time, keep it confidential. I won’t say much about the details. We hope to wait for the good news from Tiangong Technology."

Then Wang Bin and Xiang Shixiong and others chatted for a while, just as Xiang Shixiong was about to get up and leave, Wang Bin said to Xiang Shixiong: "Mr. Xiang, I don’t know your company’s Is it necessary?"

"What? Engine bearings? Has your company developed any good things during this period? Is it because Professor Hu’s research has made a breakthrough? I remember that Professor Hu was engaged in this area of ​​research when he was on the job. After retiring, our company wanted to hire him, but in the end he was picked up by your Tiangong Technology."

Speaking of this, Xiang Shixiong continued with interest: "Mr. Wang! Can you talk about the specific performance of this bearing? If the performance meets our XAC requirements, we don't mind using your Tiangong Technology bearings. "

Wang Bin did not refute Xiang Shixiong’s belief that this was the glass developed by Professor Hu. He said: “The performance of this bearing is excellent, with its highest high temperature resistance reaching 2300 degrees, and before the temperature reaches its limit, The performance of the bearing will not change much, and the minimum life of this bearing has reached more than 5000 hours according to our estimation.

Of course this is only our expectation. After all, it has only been a week or two since the development of this bearing. Even if it is tested 24 hours a day, it is only a few hundred hours. So the data we have is still there. In the test, but according to Professor Hu's calculation, the life of this bearing will never be less than 5,000 hours."

Speaking of Wang Bin, he took out the bearing that Jiang Zongliang had brought to Professor Hu from the drawer of his desk and handed it to Xiang Shixiong, and then said again: "Zong Xiang! This is what we made. Aviation bearings, but because the manufacture of this bearing requires a variety of strategic scarce materials and ultra-high-precision CNC machine tools, we do not have large-scale manufacturing. Until now, we have only manufactured a few for testing.

Mr. Xiang, the bearing in your hand is actually only a test product, and it is still a bearing that has been tested for a week. This bearing is still inadequate in terms of accuracy. This bearing is only manufactured using a three-level precision machine tool. "