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Chapter 821 Spaceship

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    The appearance of the re-upgraded research center has changed a lot compared to the original one. The dome that originally only covered the entrance and exit of the main building and Chen Xin's private shelter has been enlarged and turned into a city that is slightly smaller than the dome, but it will  A large dome surrounds the entire research center with supporting facilities such as ecological greenhouses and geothermal energy towers.

    Not only that, the original weapons testing site has also been upgraded, making the site larger and the facilities more complete and advanced.

    In addition, Chen Xin also purchased two sets of 3D printing equipment for the research center. With complete raw materials, these two sets of 3D printing equipment can produce all Yanguo's active equipment except land aircraft carriers and mobile bases, including small land-based equipment.  Sailing ship.

    To this end, Chen Xin also deliberately opened an additional dock next to the original main building of the research center to park a small land cruiser produced.

    This small land cruiser is naturally a test product created by Chen Xin to answer the question of the aerospace department.

    However, this land craft is very small. Strictly speaking, it can only be regarded as a micro land craft, because it is only half the size of the escort land craft, which is almost the same as the mining land craft that the country leases to miners for mining.  Almost as big, maybe even smaller.

    Since this land speeder is made so small, the number of people it can accommodate is naturally much smaller. After Chen Xin's repeated streamlining, the number of people this land speeder can carry is 12-15.

    There are only ten narrow cabins in total on the ship. Of course, compared with the past spacecraft where astronauts could only sit in the spacecraft and had trouble turning around, it is still much more spacious. At least there are two upper and lower bunks in the cabin.  and a table, the size of a normal room.

    Although it is said to have ten cabins, under normal circumstances two cabins will be used to store supplies to increase the activity time of this land cruiser.

    The entire ship is driven by nuclear power, and it is not a nuclear battery, but a miniature nuclear reactor of the kind used on nuclear-powered trains.

    This undoubtedly provides this specially-built small land cruiser with considerable power, allowing it to use plasma thrusters to send itself out of the atmosphere and into space.

    The reason why plasma thrusters are used is mainly because the core component used by the land craft to float into the air is the anti-gravity generator. This device can offset the influence of gravity on the land craft, but all it can do is  and gravity cancel each other out and cannot produce additional lift.

    At a height that is still affected by gravity, the anti-gravity generator can effectively offset the influence of gravity, allowing the land craft to adjust its flight altitude at will.

    But if the altitude of the land craft continues to increase, the lift provided by the anti-gravity generator will become smaller and smaller until it reaches the ceiling of the land craft.

    Although this ceiling is close to breaking through the atmosphere and entering space in a sense, this small land cruiser still cannot break through the atmosphere without the help of additional lift.

    It is precisely for this reason that Chen Xin installed a high-power plasma thruster on it to provide enough thrust to completely send the land craft into space.

    If you want to enter space, thrust alone is not enough. After all, space is a vacuum. The land craft must ensure that the hull is completely sealed. Otherwise, if there is a leak, not only will precious air be lost, but the leak point will become a  The additional force application point makes the hull lose control.

    This is one of the reasons why the spacecraft built by humans so far are all small, because it is necessary to ensure the sealing of the spacecraft, and at the same time, the shell of the spacecraft must be able to cope with the harsh environment of outer space.  It is an extremely harsh test for both materials science and structure science.

    Although Chen Xin can use system upgrades to upgrade the entire land cruiser into a spacecraft capable of interstellar navigation, considering that this is a spacecraft that will be delivered to the aerospace department, Chen Xin still uses the current Yanguo technology as much as possible.  It has the technology that can be used to build this land cruiser.

    Fortunately, there is now 3D printing technology. This technology can directly print out the entire hull of the ship without creating any gaps. Compared with traditional production and construction technology, it is undoubtedly much better at ensuring the airtightness of the hull.

    As for the hull material of this land cruiser, Chen Xin doesn¡¯t need to worry about it. The aerospace department has come up with the best material formula they have, and this is what was used in the manufacturing of spacecraft before.

    It's just that these materials were so expensive even before the disaster that only the top countries in Blue Star could afford them. As for now after the apocalypse, even Yan Country, which has the best recovery of comprehensive national strength,  , it¡¯s not that easy to get.

    Of course it¡¯s not that countries don¡¯t have raw material reserves,However, these raw materials themselves are scarce resources. In addition to the aerospace sector, various other departments and fields also have great demand.

    ??Leave aside the fact that just producing nuclear-powered locomotive reactors also requires the use of a large amount of scarce resources to ensure the safety of nuclear reactors.

    This is also one of the main reasons why Chen Xin built this land cruiser so small, because the raw materials are really not enough.

    With the raw materials approved by the state to the aerospace department, plus some of the materials they still have on hand, Chen Xin can only build such a large land cruiser after Chen Xin improves the material utilization rate as much as possible.

    Of course, even so, the length of this land cruiser is more than fifty meters long, which is indeed a giant among spacecrafts.

    For such a large ship, in addition to a thick enough multi-layer shell to ensure the strength of the hull, it is naturally impossible to have only crew cabins inside the hull.

    In addition to the cockpit, power cabin, anti-gravity generator and other standard equipment that serve as the bridge, Chen Xin also prepared a "large" comprehensive laboratory for a spacecraft on the ship, as well as an ecological greenhouse.

    The role of a comprehensive laboratory goes without saying. One of the most important purposes of aerospace activities is to conduct various scientific experiments in space. A large comprehensive laboratory is very valuable for aerospace activities.

    Before the disaster, countries built space stations, in fact, to a large extent, in order to have a large enough space in space for scientific experiments.

    As for the ecological greenhouse, on the one hand it is used as part of the space experiment for biological research, and on the other hand it is used to produce food to meet the consumption of the ship.

    After all, no matter how much the cost is reduced, every gram of payload in space is still very valuable. It is of course the best to be able to be self-sufficient in food and free up more space to carry other supplies.

    Under the premise of meeting these conditions, this land cruiser came into being and was built by Chen Xin.

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