Chapter 674 Air Police 200, and Ring Project

Just when Chang Haonan was thinking about how to draw salary from the bottom of the kettle and gradually eat away the basic plate of the Dream Group.

Qin Province, Nanzheng.

As the huge door of the final assembly workshop slowly rose, a huge four-engine propeller plane slowly drove out of the factory under the traction of a liberation truck.

The front half of the plane is not much different from a normal Y-8F transport plane, except that the glass navigator cabin at the nose of the original nose has been sealed with opaque skin, and there is an extra "little white hat" at the front end, in addition to the dense dozen spike-like radomes below.

However, in the rear half of the fuselage, which starts from the wing section, stands a T-shaped formation that is almost one-third the length of the fuselage.

Further on, the entire tail of the aircraft was raised as a result, and two inverted V-shaped tail fins were added under the tail.

Although the fuselage itself is still the same mellow appearance as in the past, with the addition of an antenna on its back, the whole plane has a bit of a murderous aura.

Needless to say, this is naturally the first Air Police 200 early warning aircraft to complete the modification and roll off the assembly line.

In fact, the basic design of the Air Police 200, especially the coupling design between the T-shaped antenna and the vertical tail, Chang Haonan completed it about a year and a half ago.

Like the long-range rocket launcher designed by Jinling University of Science and Technology and the Jianjiao 9 designed by Guihang Industry, it was used as part of the internal testing of TORCH Multiphysics.

It's just that the technical foundation of Nanzheng 182 Factory is really limited.

Their design department, which was just an on-site design office a few years ago, has only recently expanded.

Including Liang Shaoxiu, one of the two chief engineers of the Air Police 200 project, although he has also completed the improvement of the new Yun-8 platform with Chang Haonan and others, he basically only has such a complete project experience.

In addition, the project has existed as a "backup" for a long time, and neither funds nor other resources are sufficient.

So it has been delayed until the end of February 1999 before it officially left the factory.

In fact, it is not entirely accurate to say that it is "dragged" to the factory until now.

After all, it took almost 4 years for the J-7II to change from J-7II to J-7M, which almost did not involve aerodynamic parts.

After all, the transformation of transport aircraft into early warning aircraft is a huge improvement that can be seen and touched, and tremendous changes will be made in aerodynamics, structure, and power supply.

Even if the most fatal problem of antenna tail coupling is a ready-made solution, it will take less than two years to complete the other parts and build the aircraft, and the efficiency is right.

It's just that in recent years, the aviation industry's perception of "efficiency" has been somewhat distorted under the leadership of someone......

Therefore, including the 182 factory itself, they all feel that this efficiency is a bit ungood.

Fortunately, since the beginning of this year, the funding received by Air Police 200 has suddenly increased a lot, and the superiors have begun to ask more and more about the status of the project.

Today is not actually the day of the completion ceremony.

Therefore, when the plane was towed out, a series of equipment such as red carpet flower salute were not prepared at the entrance of the factory.

Even the traditional Chinese saffron was made temporarily, because it was too small to be tied to the entire nose section as usual, so it had to be hung under the white radome in the nose of the nose.

In short, everywhere is a look of urgency.

It's just that the atmosphere inside Factory 182 is not cold at all because of the simplicity of the ceremony-

There are big leaders coming.

Even Liang Shaoxiu and Wang Xiaomo, the two chief teachers, only learned about this matter the day before.

That's why it's completely too late to arrange the ceremony.

Even the former flew from Jinling temporarily.

Fortunately, the notice from the higher authorities is also very clear, the chief only came to personally inspect the research and development of the domestic early warning aircraft, and the whole process is quick and simple, and it will not affect the normal work arrangement of the project team as much as possible.

……

The two followed behind the tractor and came out of the workshop with the AWACS aircraft.

At this time, there was already a group of people waiting outside.

The one in the center wears an untitled green military coat and a pair of black-rimmed glasses.

Next to him was Ding Gaoheng, who was wearing a full winter uniform, and the leader of an aviation industry group.

After seeing that the plane had stopped, a group of people slowly stepped forward.

With this posture, not to mention Liang Shaoxiu, even the well-informed Wang Xiaomo felt a little numb.

Of course, it is not excluded that I didn't wear a hat in this cold February day, and I was freezing.

The two of them took a deep breath almost at the same time and came to the big guys.

Liang Shaoxiu didn't even notice that he was a little submissive.

"Report Chief! The first technical verification machine of Air Police 200 has been completed and shipped from the factory, please instruct! ”

Huaxia has never seriously produced AWACS aircraft in the past, so unlike Project 10 or Project 11, you can start directly from a prototype.

We had to build a technology demonstrator first.

It proves that this combination of radar + aircraft can fly, and after flying, it can detect targets normally.

The Air Police No. 1 of that year was stuck in this step.

Although it can fly, it can barely see anything on the radar after flying.

Of course, each of these large aircraft is invaluable.

If the technical validation process goes well, it is possible to switch to a prototype in situ or even to a production service.

The leader in front of him stretched out his hand and pressed it down, signaling that they could not be so nervous and be more natural.

He didn't start asking questions right away, but took a group of people, including Wang Xiaomo and Liang Shaoxiu, around the plane for most of the circle.

I didn't stop until I walked directly below the huge T-shaped antenna, and I looked up for a moment.

"Comrade Xiaomo, is this radar antenna completely produced by our country?"

The T-shaped antenna early warning aircraft is the first in the world, but the chief did not ask about the shape of the antenna.

Obviously, the other party did not come here just to watch the excitement, but to come prepared.

Definitely did some homework ahead of time.

After all, he was also the one who almost became a professor, and he didn't have any knowledge of science and engineering.

"Yes, entirely by us."

Wang Xiaomo nodded:

"However, our current technology to process high-silicon aluminum alloy with machine is not enough, so we use manual finishing methods, and the production efficiency is relatively low."

Naturally, the big leader will not express his position casually, and after hearing this answer, he just hummed, and he couldn't hear whether he was satisfied.

After a slight pause, the other party spoke again:

"I heard that this kind of phased array radar relies on semiconductor radiation units to control phase and amplitude changes, do we need to import this kind of component?"

The other party would ask such a delicate question, which made Wang Xiaomo a little surprised, but he still quickly answered truthfully:

"On this aircraft, we use T/R modules made of bipolar silicon materials, which can be completely domestically produced, although the production capacity is relatively low, but compared with the production speed of the array, it is not a problem."

"However, if we want to further improve the performance of radar, we need to use gallium arsenide components, which we can only rely on imports at present, and the use and quality of imported materials are still limited."

"What about the Ring Project?"

The chief turned his head and asked, almost immediately after:

"What kind of technology is used in the Davidian radar on the Ring Project?"

As soon as this question came out, both Wang Xiaomo and Liang Shaoxiu, who had not been able to speak next to him, instantly understood.

As Chang Haonan speculated many years ago, there should have been some problems in the ring project.

And now, the higher-ups are thinking about the survival of that project.

"According to the information provided by David, the earliest Fercon system also used bipolar silicon, but in the ring project, they upgraded to a hybrid of bipolar silicon and gallium arsenide."

"On this point, the chief does not need to worry too much, the antenna of the active phased array radar is a relatively independent part, although the current use of bipolar silicon, and so on to achieve the domestic production of gallium arsenide in the future, or find a stable import channel, we also reserve sufficient cooling power, can upgrade some components to gallium arsenide."

"Moreover, because the area of this T-shaped array is larger, the performance of a single theory will not lag too far behind in the common range of 120 degrees on the left and right, but the detection ability of 60 degrees in the front and rear is relatively weak."

Wang Xiaomo naturally can't hide the actual situation of the project, but he can target the concerns of the chief.

Sure enough, the other party turned his back and looked at the antenna in front of him and fell silent.

After a long moment, he took another step:

"Let's go, let's take a look inside the plane first."

(End of chapter)