In September 264, the base finally reached 1.2 million people, and it was promoted to the twelfth level, and the information prompted: "Conditions for promotion to the third level: Population: 1.8 million people. Energy: 30,000 crystals. Other conditions: (1) Initial mechanical power. (2) The annual output of coal reaches more than 200,000 tons. Existing conditions: Population: 1.2 million, conditions not met. Energy, 25.9 million crystals, has met the conditions. Other condition one has been met, and other condition two has been met. "At the end of the day, it's a demographic issue. Han Wenzheng is used to it, let's wait for the population, this time it will take a full 20 years.

Since 257, Qian Tiexin has been ordered by Han Wenzheng to invest in a new transformation of the Great Wall, this time to make the Great Wall a more powerful air and space warship, this work has lasted for seven years, and it has only been completed today, everyone went to the base of Yanhuang City to see the new Great Wall.

Seeing the newborn Great Wall, everyone was amazed, Han Wenzheng was very satisfied, and Qian Tiexin was very proud, for the last renovated Great Wall, Qian Tiexin put a lot of thought and effort, it can be said that he has put all the skills he currently has mastered into the Great Wall.

The new Great Wall, with a total length of 840 meters, is a third longer than the original length, up to 216 meters, and the whole is like a submarine, all sealed, but there are rows of portholes on the left and right sides of the whole ship, making the whole ship like an airplane, rather than a fully sealed shape like a submarine.

It's too huge, the original Divine Thunder Pillar of the Great Wall is gone, and the Divine Thunder Array has been withdrawn, in the war in space, the role that the Divine Thunder Array can play is not too big, this is also the law of space warfare, weapons that are too close to attack are no longer of much use, as for air defense, it is enough to have the Great Zhou Tianxing Sword Array.

The shell of the whole ship is made of metal refined from various precious ores, and the defense is extremely strong, even if it is a level 20 attack, it is not a thing, plus the protection of the three 28 Su Antian Great Array, it is enough to withstand the attack power of level 26, at this stage, there is not much that can threaten it. The portholes are also very strong, and the specially made transparent metal (not glass) is much more powerful than ordinary metal. And within the battleship, there are more defensive formations, it can be said that the defense of the whole ship has reached an amazing point, the Great Wall is Han Wenzheng's ship, Qian Tiexin first paid attention to the defense issue when designing, for this point, although Han Wenzheng was opposed, but it was ignored.

In the battleship, there are sixteen space cabins opened up by space formations, these space cabins are the large space of the battleship, the area of one cabin is five square kilometers, and the height is seventy meters, but it is no different from other cabins, from the outside, it is only fifty meters long and seven meters high, this is the role of the space formation, however, these formations alone have used up one-third of the Yanhuang clan's inventory ore, not that Qian Tiexin does not want to design more space cabins, but the resources do not allow it, however, it is enough to have these five cabins。

Among the five space cabins, one in the middle is where the generator is located, although there is also a large amount of free energy in space, but, after all, the density is far worse than that of the planet, so in order to meet the energy needs of the battleship, it is necessary to set up a powerful generator in the battleship. This kind of generator uses nuclear fusion to generate electricity, and for the raw materials for nuclear fusion, there are many in the ocean, which can be said to be fundamentally valuable, as long as there is time to refine, as much as there is. Qian Tiexin has designed a full six nuclear fusion power stations in this generator room, with a total power of 13 million kilowatts, and the power generated is converted into heaven and earth yuan qi through the large other yuan array, and then converted into spar by the yuan crystal array, this transformation makes the heaven and earth yuan qi in the whole ship can reach an amazing height, in a more mysterious sentence, the heaven and earth yuan qi has been so thick that it can be liquefied. A large amount of electricity can be stored as a backup energy source after being converted into spars.

The main propulsion engine of the Great Wall is Qian Tiexin's newly designed spar No. 2 engine, the fuel required for this engine is no longer the heaven and earth yuanqi, but the spar, through a large number of burning spars to produce a strong driving force, so that the entire warship weighing 3.9 million tons can break away from the huge gravity of the planet and fly into space, when flying in the air, the speed can reach an astonishing 10,000 kilometers per hour, and when flying in space, it is even faster, the spar engine to consume a lot of spars, if it is full power, the spar energy consumed every ten hours is as high as one crystal, that is, the energy consumed per hour reaches 10 million kilowattsThis kind of consumption is a nightmare for people. Only the power station designed by Qian Tiexin can support consumption.

The second space module of the Great Wall is the storage module, which can be used to store a large number of hedron and other materials, and with such a large space, you can put anything you want. The third space cabin is the production workshop, which is used to produce all kinds of weapons, such as consumable weapons such as Tianzhu, and these things are less than one of them, so in order to meet the needs of the battle, Qian Tiexin specially designed to be manufactured on the battleship, so that the entire battleship can achieve self-sufficient combat effects.

The fourth space cabin and the fifth space cabin are cargo warehouses, for the Great Wall, Qian Tiexin thought twice, or did not completely design it as a warship, but designed as an armed merchant ship, of course, if these two space cabins are in wartime, they can also be used for military purposes, such as can be loaded with a large number of soldiers and other combat materials, etc., it is certain that the Great Wall has few opportunities to fight on the front line, and it can even be said that there will not be, because it is Han Wenzheng's ship.

Although the Great Wall is not a professional warship, it is more of a symbol, the ship is designed to be very comfortable and luxurious, and all kinds of facilities are readily available, but there should be a force on the Great Wall is the same, although the Great Wall is biased towards defense, but in terms of force, it is not bad at all.

As a future space battleship, of course, Qian Tiexin's first consideration is the long-range firepower, and the battleship must of course have a main gun, and the gunpowder cannon in the earth era does not need to be considered, although the power is very large, but if you want to use it in space, it is simply impossible, because if the gunpowder cannon shell wants to get great power, it must be very heavy, and it also needs to consume a lot of materials to be able to manufacture, so this road is already a dead end from the beginning, and it is not worth studying, therefore, Qian Tiexin is considering the energy cannon, only the energy cannon can make cannonballs without too many materials, as long as there is energy, the energy cannon is the main force in the future space war.

The energy cannon is not so easy to research, although it is supported by the technology of the earth age, however, the power of the energy cannon of the earth age is really not very good, otherwise, the earth will not be destroyed by Mrs. Wo, Qian Tiexin is researching the Thor cannon made by using the formation.

Put a large number of spars into the cannonball bay, use the formation, convert these spars into the energy of the thunder system, and then compress and strengthen the formation, so that these energies become a powerful Huanggang God Thunder, and then hit the thunder cannon, in the thunder system of the immortal arts, there are eight kinds of divine thunder, according to the power can be divided into red, orange, yellow, green, blue, indigo, purple and open heaven god thunder. Huang Gang Divine Thunder ranks third, and its power is definitely not small, although it is as far as a dozen Sun Wukong's somersault clouds compared to the Open Heaven Divine Thunder, but, in the human world, this is already the limit of bearing, and no matter how strong the divine thunder is, it can only appear in the heavenly realm. Of course, the nature is one thing, but the power can change with the amount of hedron injected, provided that your cannon barrel can afford it, with the power of the Great Wall's main gun, it can only reach level 25 at most, which is already the limit that Qian Tiexin can currently reach, however, even if it is only level 25 power, it is enough for the Great Wall to be launched from thousands of kilometers in the air, through the atmosphere to the ground, and destroy a megacity, that power is more powerful than a nuclear bomb of 10 million tons, if it is in a space war, even if it attacks a warship 600,000 kilometers away, it can also reach level 24 power, so it is said, this Thor cannon is definitely not an ordinary power. A total of four main guns were installed on the Great Wall.

As for the firepower of the air defense, it will all be handed over to the Great Zhou Tian Xingchen Sword Array, and it is believed that the Great Zhou Tian Xingchen Sword Formation, which has 36,000 swords, can smash all objects within 500 kilometers of the battleship, and it is impossible for the enemy's small fighters or other melee attack weapons to attack the battleship. Of course, all this is just his own imagination, Qian Tiexin does not have enemy warships in space for reference, many parameters are only designed according to the existing information, and the specific effect needs to be reflected in the actual combat in the future.

In addition to powerful warships, there are also a variety of small melee troops, such as fighters, or mecha and the like written in novels, these melee weapons must be indispensable, and there are also on the Great Wall, however, for those fighters and the like, Qian Tiexin did not design, but replaced them with manpower, with the strength of more than 16 levels, and with the strength of more than 16 levels of demon beasts, such a combination, I believe that it is not very difficult to deal with those fighters, and with the strength of the Yanhuang warriors, it is not very difficult to attack the enemy's warships。 After all, no war machine in this universe is more agile than man himself, and it is certain that these warriors will play a great role in future wars. The full crew of the Great Wall is 10,000 people, and in addition to the 5,000 people who are necessary personnel for various positions, there are also 5,000 soldiers who are these melee fighters. Of course, the Yanhuang clan is seriously lacking in strong warriors, and the establishment of 10,000 people has not been fully established for a long time, so there are only 1,500 people on the Great Wall, so it can be said that most of the designs are not able to come in handy.