The rise of nanometers

Chang Fuguo, who had hurriedly visited various aircraft manufacturing companies, returned to Shanmei City on September 5 and reported some specific situations to Huang Xiuyuan and Lin Baijie.

After listening to Chang Fuguo's report, Huang Xiuyuan thought for a while and then picked up the aircraft projects of those companies.

At present, large transport aircraft, supersonic fighter aircraft and commercial transport aircraft have begun to enter a stage of change.

He was a little surprised when he found XAC's ramjet hybrid aircraft plan. In fact, this plan had existed before, and its main purpose was to develop aerospace aircraft.

With the availability of N20 high-energy fuel, XAC has indeed done a lot of research work in this regard.

However, Huang Xiuyuan is not very optimistic about the future of aerospace aircraft, mainly because the positioning is too awkward, and he feels helpless about not being able to get up or down.

Especially with the improvement of satellite and ground monitoring systems and the emergence of low-Earth orbit strike weapons in recent years, aerospace aircraft that can enter low-Earth orbit do not have any overwhelming advantages.

At that time, Chi Lucia also built an aerospace plane, but later found that this thing could not defeat ordinary fighter jets in the atmosphere; and in low-Earth orbit, it was not as good as strategic missiles, so she lost interest in the aerospace plane.

In Huang Xiuyuan's view, the development of aerospace aircraft is not as good as building an orbital carrier, using the current domestic powerful and cheap launch vehicles to launch modular spare parts into outer space and assemble a batch of several hundred tons of orbital carriers.

On the orbital mothership, missiles, mature laser cannons, and combat satellites can be mounted to form a condescending suppression of the ground.

However, the orbital mothership also has many shortcomings. For example, the orbit is relatively fixed and it is easy to be locked and focused by the opponent.

For example, Musk's Starlink satellite can be transformed into a suicide satellite when necessary, used to hit orbiting carriers, space stations and other satellites.

Unless there are mature laser cannons and defense systems that can ensure the survivability of the orbital carrier, there will still be many problems.

However, Huang Xiuyuan did not completely deny the aerospace plane, because the aerospace plane still has some uses, but it is not used in combat, but in reconnaissance.

Ordinary atmospheric reconnaissance aircraft can only fly within their own airspace and international aviation zones, and cannot enter the airspace of other regions at will.

Reconnaissance satellites are all at least 350 kilometers away, or they can use large elliptical orbits to approach Blue Star at perigee, which is 220 kilometers away. For example, some of the American keyhole satellites use large elliptical orbits. .

Even so, coupled with high-precision optical equipment, the accuracy of images captured by satellites is up to about 0.1 to 0.35 meters; the accuracy for civilian use is even lower, usually around 1 to 10 meters.

Then why not place satellites in low-Earth orbits of 100 to 200 kilometers?

The most important factors are air resistance and planetary gravity.

Although the Kármán line is 100 kilometers, there are still relatively dense gas molecules in the low-Earth orbit area of ​​100 to 350 kilometers.

If the orbit of the satellite is less than 350 kilometers, the flight speed will continue to decrease due to the existence of gas resistance. Low-orbit satellites rely on flight speed to resist the gravity of the planet. Once the speed drops, they will be pulled down from the atmosphere by gravity.

Even if a large elliptical orbit is adopted, the perigee cannot be lower than 200 kilometers, otherwise there is a risk of being pulled down from the atmosphere.

In fact, the International Space Station, which is located in an orbit of 405 kilometers, and the Tiangong Space Station, which is located in an orbit of 452 kilometers, are falling downward every day, but the height of the drop is not obvious. This problem can be solved by starting the auxiliary engine regularly and raising the orbital height of the space station.

Therefore, the air resistance problem in low-Earth orbit has always been a headache for various space agencies.

The aerospace plane can fly near the Karman Line, which is more than 100 kilometers away. When used as a spy satellite, it can increase the observation accuracy to the limit of 5 centimeters.

At the same time, aerospace aircraft are relatively flexible and can quickly maneuver and change orbits, and even stay over an area for a long time.

Due to international law, the upper limit of airspace is the 100-kilometer Karman Line. The area beyond the Karman Line belongs to international public space.

The aerospace plane can fly at an altitude of more than 100 kilometers, deliberately disgusting the opponents, and just take pictures with a big show, but the opponent has nothing to do with you.

Huang Xiuyuan put down the XAC aerospace aircraft plan in his hand, picked up the Feipeng II design plan, and asked with some surprise: "Ordered two?"

"Yes, the price quoted by Dalian Shipyard is 1.88 billion per ship." Chang Fuguo did not expect that the Air Force would actually purchase it.

Lin Baijie, who didn't know much about military transport aircraft, said with a smile: "This big guy is pretty good for logistics delivery."

Chang Fuguo spread his hands helplessly: "We must control the air, otherwise it will be easily destroyed. After all, the target is too obvious."

"In fact, it can also be used as a bomber or arsenal aircraft, but the speed is too slow. Fuguo, you can communicate with XAC and develop a model with a load capacity of 1,000 tons." Huang Xiuyuan suggested.

Chang Fuguo rubbed the stubble of the assassin: "1,000 tons? You can consider this. If the speed can reach subsonic speed and the altitude reaches near the stratosphere, it is indeed possible to equip it."

Huang Xiuyuan remembered something and asked, "By the way! What's the progress of the absorbing material I asked you to develop last time?"

"Chairman, I have had people try all three formulas you gave me last time. Among them, formula No. 3 has the best absorbing effect." Chang Fuguo said that after answering, he asked another question:

"Although the absorbing material is very effective, the infrared leakage from the engine nozzle is still difficult to cover up and can easily be locked by the satellite's infrared detector."

There is nothing Huang Xiuyuan can do about this problem. After all, the engine needs to burn to perform work, and it must spray tail flames and exhaust gases to the outside. The infrared heat source is difficult to cover up.

He discussed with Chang Fuguo for a while to understand the current progress of various projects in Snail Industry.

After Chang Fuguo left, Jiang Hailin walked in and said with a smile: "Xiuyuan, good news."

"What good news?"

"Maybe it's something about the route." Lin Baijie guessed.

Jiang Hailin nodded: "It's a matter of routes. Luzon, Siam, Khmer, Malaysia and Hongsawady have agreed to allow our ground effect transport ships to enter their waters."

"Where is the Kra Isthmus?" Huang Xiuyuan asked with squinted eyes.

Jiang Hailin replied with a smile on his face: "Siam agreed and allowed our ground effect transport ship to fly over the Kra Isthmus and enter the Ceylon Ocean."

"It seems that it is very necessary to show off your muscles. These guys are honest now. They are still the physical superpowers of Gatling Bodhisattva, and it is easier to convince people with reason." Lin Baijie also laughed.

"Hahaha..." Huang Xiuyuan also chuckled.

In fact, many domestic arrangements have been made for Indochina this year.

For example, it leased the Khmer Koh Kong Island and the Coco Islands in Hongsawady, and cooperated with Siam to develop the Songkhla-Phangnga area.

These three development zones are equipped with satellite communication stations, electronic monitoring stations, radar detection stations, and supply bases.

Several additional regiments were stationed at these bases.

With the gradual rise of strength, these traditional spheres of influence from ancient times are gradually returning to the circle of China.

The great reshuffle in the Asia-Pacific region is slowly beginning.

The international business of domestic enterprises has also developed more and more smoothly. This is the benefit of having a strong backing.

For example, the Suiren Department is pursuing a ground-effect route this time. If it were in the past, the other party would either ignore it or open its mouth. How could it be so easy to talk to.

Thank you for your support (ω｀)