Chapter 1415: High-end services often only require the simplest way of providing them...

Taking advantage of a gap in Yang Jie's introduction, Charles Kahler, an engineer from BAE Systems, suddenly raised his hand:

"Sorry, I feel a little dizzy, maybe it's because it's too hot here... Can I get some fresh air?"

Although anti-static clothing has double layers of coating inside and outside the fabric to ensure its effectiveness, its breathability is indeed very poor, but after all, it does not seal the person tightly like chemical protective clothing.

Therefore, suddenly making this request at this juncture obviously means that there are other plans.

For example, take the opportunity to observe the layered structure and fixing form of the shielding shell.

Although several European countries currently have no plans to build similar equipment, as engineers, whether from the perspective of preparing for a rainy day or simply to satisfy their own curiosity, they all want to see more.

Yang Jie just felt it was a little funny in his heart. After all, about ten years ago, when he went to Moscow for inspection with the team, he used a similar method to check the coating mounting form of the absorbing cone.

In the early years, large microwave anechoic chambers all used modular spliced ​​shells similar to small laboratory devices. The installation process required a large number of screws, pressure strips and gaskets, which inevitably affected the shielding effect.

Therefore, in order to pursue a relatively clean microwave environment, the entire space must be kept strictly closed during the working process, and a special air-conditioning system is generally not installed.

Therefore, if you want to ventilate the room when not in working condition, you can basically do it by opening the waveguide window or even opening the door directly, which is a simple and crude method.

Either way, it is equivalent to opening a gap in the wall that is visible to the naked eye.

This provides an opportunity to observe installation details from a cross-section.

Obviously, Mr. Kaler did a lot of homework before coming.

But the information obtained is a bit outdated.

Times have changed, and the welded shell technology used in the new generation of equipment has long eliminated this defect.

Its ultra-high and ultra-wide main structure uses welding to support the entire inner wall of the darkroom on the civil steel column and steel beam frame outside the shell. The required exhaust duct can be reserved before leaving the factory without affecting the shielding effectiveness.

Actually, it’s not his fault.

After all, in the past decade, only China has built a new large-scale microwave darkroom, and past data, whether from the United States or the Soviet Union, cannot reflect this.

"Yes, Mr. Kahler."

Yang Jieqiang suppressed his smile and nodded, then took out a delicate remote control from his pocket:

"I'll increase the air conditioning volume, I hope that will make you feel better."

Sure enough, after hearing these words and the buzzing breathing sound that followed, Kaler's expression froze on his face.

At that moment, his smile was uglier than crying:

"Thanks……"

Liu Yongquan, who had been following at the end of the team without saying a word, originally didn't quite understand the situation, but at this point he could no longer fail to see that someone was trying to take advantage of the opportunity to cause trouble but was silently rebuked. He couldn't help but cover his mouth and laugh.

Thirty years in the east, thirty years in the west, and now it is finally your turn, the Europeans, to experience this feeling.

Fortunately, we are still partners after all, so the situation was not too ugly.

"Next, we will demonstrate the basic process of RCS near-field testing. Of course, for everyone's health, the transmitting antenna will not be put into operation... Please pay attention to where you step and make sure to step within the green area."

As Yang Jie spoke, he walked to the door and pressed an inconspicuous button next to it:

"RCS Near Field Two, requesting to execute the test preparation process."

Under good microwave shielding, any portable wireless equipment will not work properly and communication can only be carried out through fixed communication systems.

At this moment, almost every member of the visiting group had shining eyes.

Especially Kaler, who was a little embarrassed just now, changed his expression 180 degrees.

Beneath the slightly comical performance, there are also some sorrows and pains that cannot be told to outsiders.

"Control room received, test preparation process."

A response from the control room came from a speaker that was not known where it was installed.

Of course, no one was responsible for translating this part of the communication.

So, someone soon came over to Ed Steiner, who was staring at the far-field five-axis turntable in thought.

The latter, having come to China so many times, was the only one in the entire team who could communicate normally in Chinese.

"Charles, what were they talking about?"

Ed Steiner came back to his senses:

"Oh... He just asked the control room to make relevant preparations. He didn't mention any useful details..."

Soon, accompanied by the humming sound of the drive motor, the near-field 5-axis turntable and the near-field scanning frame moved to the corner of the wall by the guide rails. Then, on the ground outside the green area, many blue cones like the ceiling and walls rose up, hiding the translation rails well. At the same time, the transmitting antenna and the receiving antenna quickly adjusted their angles and synchronously aimed at the white RCS turntable located in the center of the room.

The members of the visiting group stared in amazement as the entire room transformed like a Transformer in less than a minute.

"Fully... fully automatic?"

Kaler blurted out unconsciously in shock.

As an engineer at BAE Systems, he had also seen from afar similar engineering facilities at Lockheed Martin during his involvement in the JSF project.

However, the entire preparation process needs to be completed manually. Especially after the model to be tested is installed on the RCS turntable or the five-axis turntable, the ground absorbing cones that were previously removed need to be installed back by manpower. The whole process takes from several hours to several days.

And now, all this happened in just a few breaths.

Accordingly, the testing efficiency may have to be improved by dozens of times.

It is no wonder that the Chinese were able to come up with a decent stealth aircraft in such a short time.

If before this, some people still had some doubts about the performance of the No. 2001 verification aircraft, then now, everyone is considering more things.

Is the testing capacity of this facility a bit too much for China itself?

Ed Steiner, who is quite familiar with Hua Xia, spoke directly:

"Mr. Yang, does this speed of preparation mean that the entire facility can complete multiple rounds of RCS tests within a day?"

Such a straightforward way of asking questions even scared several other people in the tour group.

But in fact, Yang Jie had been waiting for this question for a long time.

Just to make it sound more realistic, he pretended to be hesitant and exchanged glances with Liu Yongquan in a pretentious manner.

After a few seconds, he seemed to have received permission from the latter, breathed a sigh of relief and replied:

"Yes. In theory, the cycle from preparation to completion of data collection for each round of testing is about 2.5 hours. In practice, considering additional inspections and confirmations, it may take about 4-5 hours. Of course, such precision equipment also has maintenance cycles. On average, 60-70 sets of tests should be completed each month."

Liu Yongquan actually doesn't know much, but according to the plot, it should be his turn to speak:

"But in most cases, we don't have such heavy testing pressure. After all, the design of an aircraft is very complicated, and time must be left for other aspects. So at most we only conduct 33 sets of tests in a month, and there is still a window period of almost half..."

If the previous parts are just preparation.

So far, it can be considered as a clear statement.

Europeans may no longer have plans to develop serious fourth-generation fighters, but should they develop stealth drones? Should they develop stealth modifications to existing models?

Even if you don't need any of them, you will still need a microwave darkroom when you do research on anti-stealth and radar remote sensing in the future.

We can't always make do with laboratory-grade facilities, right?

Now the Americans are unwilling to open their facilities, and the Russians’ facilities are barely sufficient, but we have just over 20 sets of test capacity left every month.

More than 20 groups are indeed a lot for one user, and they are almost impossible to use up.

But if everyone competes and the cost is shared among each user, then there will be a first come first served system.

As for the issue of leaks you mentioned?

Stop kidding, do you know what a seller's market is?

Can you see where you can find a microwave darkroom for a fee?

This is the latest next-generation technology in the 21st century. Are you afraid of leaks? Am I also afraid of leaks?

If you don’t want to buy, just stay away, there are a lot of people waiting in line behind you.

So, after this sentence was said.

The others are fine.

But the atmosphere between Kahler and Edsteiner, who had been relatively harmonious just now, suddenly became awkward.