In Xiao Yu's plan, the "county" class spacecraft has a minimum weight of 100,000 tons and a length of at least 500 meters. Xiao Yu measured his raw material reserves, and after comprehensive calculation, he planned to build a 300,000-ton "county" class spaceship as his flagship, and the remaining two might as well be a little smaller, and it would be better to build a 200,000-ton one.

Such a large spaceship can no longer be built from the ground, it is very simple, because the volume is too large and the mass is too large, after it is completed, with Xiao Yu's current level of technology, it has no way to take off from the ground. If you insist on taking off from the ground, the ship's hull may be severely damaged.

If only the damage to the hull is considered a haode, if it is replaced by a megaton-class "city" class spaceship, or a 10-million-ton "provincial" class spaceship, after it is built, it cannot be within the Loch limit of a massive star at all, otherwise, it will be completely torn apart by the gravitational force of the star.

Xiao Yu's spaceship, although it is made of the strongest and toughest materials, is hollow, except for the shell, most of the interior is space, so in general, the density of the spaceship is not even comparable to water.

The so-called Loch limit refers to the limit distance at which a rigid body or fluid will not be torn apart by its gravitational force when it orbits a massive star. Taking the earth as an example, with Xiao Yu's current level of technology, if a 10-million-ton "provincial" spaceship is within 20,000 kilometers of the earth, it will be torn to pieces by the earth's gravity because of the imbalance of the earth's gravity on the ship's hull. In the past, artificial satellites launched by humans were not shredded because they were too small in size and their materials were tough.

In science fiction movies, huge alien ships take off and land vertically from above the Earth, coming and going freely, and it is certain that they are a civilization that has mastered anti-gravity technology, otherwise they would not have been able to do this with such a huge hull.

With Xiao Yu's current technology, he is still a little short of mastering anti-gravity technology.

Although there was no way to build the "County" class spacecraft from the ground, Xiao Yu found a solution early on, that is, to build a dock in a synchronous orbit two thousand kilometers away from Titan, so as to build the "County" class spacecraft.

However, in this case, the transportation of materials becomes a big problem. At present, there are only two spaceships capable of shuttling in space, the Hope and the Dawn, but compared with the hundreds of thousands of tons of materials needed to build the "county" class spacecraft, the transportation capacity of these two spacecraft is still weak.

At this time, the Institute of Materials Science and Technology, which was established in advance, came in handy. During this time, Xiao Yu has developed a new type of nanopolymeric material, which is at least 100 times stronger than steel.

Xiao Yu named this material "Rope of Life", and he planned to use this material to make a space elevator.

Xiao Yu sent a large number of robot armies to dig a large pit hundreds of meters deep on Titan's equator, buried a metal block weighing at least several thousand tons in this large pit, and then manipulated the Hope to the top of the pit 2,000 kilometers (Note 1), hovering there.

Then, a milky white rope-like object protruded from beneath the Hope. This thing is the highest embodiment of Xiao Yu's material technology, the rope of life. The rope of life with a radius of one millimeter can withstand a maximum ten-ton tensile force, and the toughness of this material can be imagined.

And the rope of life stretched out under the Hope has a radius of two centimeters. According to estimates, this rope of life can withstand a tensile force of nearly 4,000 tons.

A small fusion engine is installed at one end of this rope of life, and when the engine is started, it will continue to descend towards Titan until it reaches the end of the rope after 10 kilometers.

At the other end of the rope of life is also a small fusion engine, which holds the ten-kilometer-long rope in the air, slowly rotating together as Titan rotates.

The Hope then returned, reloaded with a rope of life, and came to its original position. After connecting one end of the new rope of life to the original one, the rope of life continued to descend under the action of the fusion engine.

After more than 200 round-trips, one end of this rope of life was connected to the pre-dug haode pit in Titan, and Xiao Yu was fixed to the large metal block, and then manipulated the robot to bury the large metal block. The other end is in space, anchored to another large piece of metal by Hope.

And just like that, a simple space elevator was made.

The principle of this space elevator is simple: when an object moves faster than the second cosmic velocity of the star, it will fly away from the star and never come back. The space end of this space elevator has exceeded Titan's second cosmic speed, but it is fixed by the rope of life, and of course, it will produce a xiangshang pulling force to straighten the rope of life.

And because Titan has its own rotation, through the Rope of Life, Titan will continue to accelerate the large metal block at the end of the Rope of Life, so that his speed is always maintained above the speed of escape and will never fall.

The most wonderful thing is that here at the space end of the rope of life, because of the centrifugal force, a force similar to gravity is generated here, so that when processing and building the hull, there is no need to be troubled by weightlessness and inconvenience in construction.

The principle of the space elevator, simply put, is like a person throwing a large iron chain with an iron ball at the top. The iron ball wants to fly, but it is fixed by the iron chain, and it will not fly away, but will straighten the iron chain.

In this way, Xiao Yu can use this rope of life that will never fall off to continuously deliver supplies to space. Even, Xiao Yu can make a pulley, which can pull materials into space on the ground.

Of course, that was after the space elevator was all built. The current space elevator is just the beginning of its appearance.

In the next few months, Xiao Yu carried out a lot of processing on this space elevator, including reinforcing and thickening the life rope, thickening its diameter to one decimeter, installing a large number of equipment on it, and stationing a large number of robots at the space end of the space elevator to start the construction of the dock.

The construction of this space elevator took Xiao Yu half a year. At the same time as the construction of this space elevator, Xiao Yu started the construction of the remaining two space elevators. When the first space elevator was built, the other two space elevators were already in the late stage of construction.

A total of three space elevators provide Xiao Yu with a strong ability to transport materials. On the ground, countless special steels, special materials, various construction components, and various types of robots were transported one by one for the construction of the space dock.

At the same time, construction on the ground base has also begun in full swing. In addition to the original base, Xiao Yu started the construction of three more bases, several major ground bases at the same time to carry out the construction of "village" and "township" class spacecraft, and three docks in space are full force to build "county" class spacecraft.

All kinds of materials were used out like flowing water, and in exchange for three large docks that were enough to build 300,000-ton spaceships, as well as hundreds of "village" class spaceships and dozens of "township" class spaceships neatly placed there on the ground, among which the smallest one was the size of the Hope.

At the same time as the construction of the "county" class spaceship, Xiao Yu controlled all the hundreds of "village" class spaceships to fly to Saturn, and made every effort to carry out the work of material reserves. After all, after leaving the solar system, Xiao Yu would never be able to get even a piece of scrap iron to replenish him.

While the spacecraft is being built in full force, the construction of a new generation of photonic computers is also on the agenda. During this time, Xiao Yu has updated research results on the architecture of photonic computers, as well as computing modes and instruction sets, and it is expected that after the completion of the new computer, Xiao Yu's computing power can be increased by five times on the original basis. In this way, while controlling more than a thousand spaceships in the entire fleet, Xiao Yu also has the ability to start the compilation of the "Heroes of the Sky Record" and conduct various scientific research.

At that time, the latest photonic computer will be installed on the flagship and become the brain of the entire fleet, while the old photonic computer will be installed on another "county" class spacecraft to serve as a variety of auxiliary computing work without Xiao Yu's direct interference.

At this time, Xiao Yu no longer pays attention to sustainable development, he has attacked all the methane lakes on Titan where black insects exist, according to the size of the lake, or using nuclear strikes, or using conventional high-explosive ammunition strikes, in short, Xiao Yu in addition to leaving some black insects for artificial breeding, he killed all the black insects that could be collected, and then collected their corpses, part of which was used to build spaceships, and part of which was stored for future use.

In the past few years, a fire will explode on Titan from time to time, a mushroom cloud will rise, and the entire Titan will be turned upside down by Xiao Yu.

This is the madness of zuihou before leaving.,Since you can't come back in the future.,So here.,Leave a little trace of yourself.。

Xiao Yu thought.

Three years passed in a hurry, and the construction of three "county" class ships was completed. One thousand "Village" class ships and seventy "Township" class ships have also been built.

Xiao Yu's long-awaited interstellar voyage will soon begin.

Note 1: Because Titan is locked by Saturn's gravity and rotates slowly, the length of the rope of life required to build the space elevator mentioned in the article must be at least about 20,000 kilometers. However, under the protagonist's current construction ability, in order to be reasonable, it was changed to 2,000 kilometers, in addition, there must be a lot of mistakes in the article about scientific theories, I hope you don't take it seriously, just watch it for fun, I hope students who have studied it don't delve into it.

Besides, there is only this chapter for today......