Chapter 844

The military base used as the research site of the South Tianmen project is an air force base. Naturally, it also has a runway.

However, this runway has not been used for a long time. Since the air base was sealed before the disaster, there have been no aircraft taking off and landing on this runway for several years.

When Chen Xin and his crew arrived by land ship, they just landed on the tarmac full of snow.

It's not that they don't remove the snow, but the snow more than ten meters thick. It's really a huge project to remove it, and the snow is very thick. Instead of cleaning the snow, it's better to open a roller to compact the snow and use it directly on the ground.

The only problem may be that the road will slip after the snow is compacted, but even if the snow is cleared, the ground is as easy to freeze and slip in such a cold day.

Therefore, in order to solve the runway problem of aerospace aircraft test flight, the staff of the base spent three days to level the snow covered runway, so that it can at least meet the standard of Field Airport and can be used for aerospace aircraft test flight.

"Is there no problem with the runway? No, the runway melts directly as soon as the aircraft engine is ignited?" Chen Xin's worry is not groundless. After all, the technical verification aircraft of the test flight aerospace aircraft still uses the traditional jet engine, not the NVN induction force field engine and kd-64bv variable cycle engine set on the Xuannv Aerospace UAV in the South Tianmen plan.

The so-called NVN induction force field engine is a radiation propulsion engine, which uses the products of the giant change reactor as the medium for propulsion. This propulsion mode is still too early for human beings, and science and technology have not developed to this point.

Therefore, the traditional engine technology that has been mature is adopted by the overhead aircraft. Relying on the advanced technology provided by various countries, the aircraft can meet the design requirements.

However, this also brings a problem, that is, when the aircraft engine starts, the temperature of the tail flame can reach a high temperature of thousands of degrees. If the snow melts, it will evaporate in an instant.

The researcher on one side didn't worry much about it and replied to Chen Xin: "academician Chen, please rest assured that we have made detailed calculations and there will be no problem."

With that, he introduced the situation of the aerospace plane to Chen Xin in detail, explaining that even if the snow on the runway was evaporated by the tail flame of the aerospace plane, it would not affect the test flight of the aerospace plane.

Chen Xin nodded after listening to the explanation. He also knew that since these researchers were able to formulate such a flight test plan, it was obvious that they had made detailed calculations in all aspects and decided to do so only after they were sure there was no problem.

But he was still a little worried, so he asked more.

Moreover, Chen Xin not only asked, but also sent the researcher's explanation to Xiyao and asked her to help with derivation and calculation.

Although he had asked Xiyao to calculate these data before the test flight, when the project team submitted the test flight application plan to Chen Xin, he still didn't trust Xiyao to calculate it again. After confirming that there was really no problem, he agreed to let the overhead plane take off.

As Chen Xin's order was conveyed, the aerospace plane on the runway began various pre flight inspections and started the engine.

Chen Xin looked at the plane on the runway with his telescope. At this time, its surface had been sprayed with a layer of black protective paint, which was very inconspicuous.

However, the fully enclosed nose, which is different from the traditional aircraft glass cockpit, still illustrates the essence of this aerial UAV.

"I remember that Xuannv's design adopts two operation modes: forward swept wing and manned unmanned?" watching the test flight of the aerospace aircraft enter the reserved position on the runway, Chen Xin suddenly asked the researcher aside.

According to the original design of the South Tianmen plan, the Xuannv Aerospace UAV adopts neural induction control. The pilot directly controls the aircraft through the helmet, so it does not need the glass cockpit of the traditional aircraft.

In the unmanned mode, a neuron computer with bionic human brain will be installed in the cockpit to control the flight and mission of the aircraft.

Of course, there is no problem with this design. In addition to the fact that current technology can't do these things at all, there are really no shortcomings.

Even the wing design of the aircraft was specially analyzed at that time. Although it can not be said to be reasonable or superior in performance, at least this structure can really fly.

Therefore, after the whole Nantianmen plan was taken out, the original sci-fi level settings and requirements only made some simple modifications or lowered standards to make it conform to the reality and the current scientific and technological level. In addition, no more adjustments were made.

But on the aerospace plane, what Chen Xin saw was that the technical verification plane for the test flight abandoned most of the original design of Xuannv Aerospace unmanned combat aircraft.

Rather than saying that this technology verification aircraft is the product of the realization of Xuannv Aerospace unmanned combat aircraft, it is just an aircraft redesigned according to the idea of Xuannv Aerospace unmanned combat aircraft.

Obviously, the researcher on the side also understood this problem. Facing Chen Xin's inquiry, he explained to him: "In addition to our technology, the original design of Xuannv fighter also has some problems in its own layout. For example, its forward swept wing design and the front wing of rhombic connecting wing design will have a certain conflict, which will greatly affect the elevation performance of the aircraft. Therefore, we modified the aerodynamic layout and redesigned the aircraft.

At present, academician, the technology verification machine you see adopts a pneumatic shape originally designed by Lucia for su-47 golden carving. However, the whole su-47 project has not been put into production, so this design has not been really produced, but has been tested in wind tunnel.

The South Tianmen project needs this, so Lucia took out this design, coupled with other finished technologies provided by various countries, so we have the current technology verification machine. "

Chen Xin was not surprised to hear the researcher say so. When he went to inspect, he really didn't pay much attention to the shape of the aircraft. After all, he had a lot of things at that time, so the specific responsibility of each project was handed over to the project leader.

He is only responsible for dealing with the overall situation, so specific details like this can only be seen when the plane flies.

In particular, Chen Xin doesn't know much about aircraft. If there was not a conceptual design drawing of Xuannv Aerospace UAV in the data in front of him, he might not be able to find this difference, which looks different from the technical verification aircraft in front of him.

While Chen Xin and the researchers were talking about this, the technology verification aircraft on the runway also completed all the preparations before takeoff, and the engine emitted a long tail flame, pushing it into the blue sky.

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